Full Stack Engineer

About UsAt NewForm, we are revolutionizing the marketing landscape by creating innovative tools tailored for the modern advertising era. As the industry shifts towards a content-first approach, traditional audience-focused marketing analytics are becoming less effective. We pride ourselves on being a tech-enabled service, combining our proprietary technology…

Join Antimetal as a Full-Stack Product Engineer, where you'll be at the forefront of crafting our core product driven by innovative AI technology. Your role will involve designing robust APIs, orchestrating system layers, and implementing essential business logic while creating seamless and user-friendly interfaces.We seek a proactive individual who thrives in tackling ambiguous challenges, managing projects from inception to completion, and effectively translating user feedback into actionable product enhancements.About AntimetalAntimetal is revolutionizing infrastructure management. Our mission is to create a platform that not only identifies and resolves issues but also anticipates them, allowing engineers to reclaim their time for what they excel at: developing exceptional products.Your Responsibilities:Develop AI-driven tools and productsDesign and implement new features across the technology stack, from backend data models to React-based frontendsEngage with users to gather insights and shape product developmentCollaborate with design teams to enhance frontend experiences and establish interaction standardsLead projects through uncertainty, breaking them into manageable milestones and ensuring timely deliveryWork closely with customers to refine features and validate the product trajectoryYour Qualifications:5+ years of experience in professional software engineering within full-stack rolesProven track record of owning projects from start to finish in a startup environmentStrong proficiency in Typescript, React, Postgres, and NestJSDemonstrated ability in product design, crafting features that resonate with usersCapability to lead initiatives through ambiguity and drive alignment across cross-functional teamsPreferred Qualifications:Experience with AI-native product developmentBackground in development tools, infrastructure, or observabilityFamiliarity with cloud infrastructure (AWS, Docker, Kubernetes, Terraform)Experience in direct customer engagement to shape product offeringsPrevious exposure to shaping product direction based on user interactions

Join Cape as a Senior Full Stack Software EngineerCape, founded in early 2022 by experts from Palantir and Anduril, is on a mission to revolutionize privacy and national security in the wireless domain. Our CEO's experience leading Palantir's US national security business ignited a passion for securing mobile privacy, and we are committed to empowering individuals—especially those in national security—by giving them control over their data.At Cape, we transcend the role of a typical cellular service provider; we are at the forefront of a privacy-centric movement that begins with the devices people use daily. Our innovative cellular network is designed to help users regain control over their personal information, which we believe is essential for a secure and private digital experience.We understand that our location, our movements, and our relationships are deeply personal and must be kept confidential. Privacy is not about restriction; it's about enhancing capabilities through advanced features. With backing from Andreessen Horowitz and other top-tier venture capitalists, we are excited to expand our team.About Our TeamOur team consists of relentless builders who are constantly pushing the boundaries of technology and bringing groundbreaking ideas to fruition. At Cape, innovation is embedded in our culture. We empower our team members to achieve excellence and make significant contributions. As part of our team, you will collaborate with an eclectic mix of talented engineers and staff, fostering dynamic interactions across the organization.About the RoleAs a Senior Full Stack Software Engineer at Cape, you will play a critical role in providing secure and resilient connectivity solutions. You will help build a system that prioritizes security and privacy, distinguishing our users from traditional telecom environments. This includes developing a top-tier signaling firewall to detect and mitigate malicious signaling threats, identifying fake base stations, and preventing SPAM and Smishing attacks. You will also ensure transparency by alerting users about potential threats from hackers or state actors. Your fluency across the full technology stack will grant you substantial ownership and the ability to lead these initiatives.

Role Overview rockstar-3 is hiring a Senior Full-Stack Engineer in New York, NY. This role focuses on building and improving applications across both front-end and back-end. The work centers on creating software that supports user needs and business goals. What You Will Do Develop and maintain applications using front-end and back-end technologies Collaborate with team members to design features and solve technical challenges Contribute to projects that improve user experience and support business growth Location This position is based in New York, New York, United States.

Standard Template Labs is an innovative, stealth-mode startup specializing in AI-native solutions that are reshaping IT Service and Configuration Management. Supported by prominent investors, we harness cutting-edge AI, graph-based architecture, and superior design to revolutionize how enterprises interact with their technology ecosystems.About the RoleWe are seeking a Principal Software Engineer, Full-Stack AI to spearhead the technical vision for our platform, overseeing everything from data ingestion to user interfaces and operational impact. This position is ideal for a senior technical leader who excels at blending AI systems and distributed infrastructure with high-quality software engineering.In this role, you will design and implement production-ready AI systems, create scalable backend and data platforms, and ensure that AI functionalities are reliable, trustworthy, and user-friendly for enterprise clients.You will define what “applied, full-stack AI” means at Standard Template Labs by architecting reasoning pipelines, operationalizing large language models (LLMs) and agents, and developing human-in-the-loop experiences. By building the foundational elements that seamlessly integrate intelligence into every workflow, you will also mentor senior engineers, influence product strategies, and foster an engineering culture that intertwines AI, systems design, and user experience.

StubHub is committed to transforming the live event experience globally. Whether it's a user's first concert or their hundredth game, we're dedicated to providing an unparalleled journey from ticket search to entry. Our platform also serves sellers, from individuals offering a single ticket to promoters managing worldwide tours, ensuring StubHub remains the most secure and convenient option for millions of fans worldwide.At StubHub, we're reimagining the global marketplace for live experiences, integrating AI throughout our processes for discovery, personalization, pricing, and conversion. We seek a proactive, product-oriented Software Engineer II eager to take ownership across the tech stack and make a tangible impact on millions of users.This role transcends traditional frontend or backend responsibilities. It's designed for engineers who thrive on versatility—comfortable navigating UI, APIs, services, experimentation frameworks, and data-driven iterations to rapidly deliver significant product enhancements.Location: Hybrid (3 days in office/2 days remote) – New York, NY or Century City, CA About the Team: The Consumer Experience team oversees the vital aspects of StubHub, including:Event discovery and searchPersonalization and recommendationsMerchandising and pricing interfacesConversion and checkout processesWeb and mobile user experienceWe foster a collaborative environment where engineers are empowered to influence product direction, conduct experiments, and drive business metrics.We prioritize constant shipping, comprehensive measurement, and rapid iteration.Your Responsibilities:Design and develop high-scale consumer features utilized by millionsTake ownership of projects from initial ambiguity to deploymentCollaborate across frontend and backend systems to create holistic solutionsImplement A/B tests and iterate based on actual user behaviorIntegrate AI-driven functionalities into user-facing product flows

Full Stack Software EngineerValthos Inc.At Valthos, we harness the power of applied biological intelligence to develop innovative software and biological AI systems aimed at protecting humanity. Our advanced AI architectures, which drive self-driving cars and enable precision landings of rockets, are now being integrated into biological design. To maintain our leading edge, we strive to enhance our toolkit to effectively navigate the complexities of nature's ongoing mutational landscape.Our team consists of dedicated software engineers from renowned organizations like Palantir, as well as biological machine learning engineers from MIT's Broad Institute and DeepMind. Together, we aim to translate cutting-edge computational biology advancements into practical applications for both federal and commercial sectors.We are on the lookout for talented full stack software engineers who will contribute to the design and implementation of platforms that enable Valthos to deliver pioneering methods to our scientific and technical users. Your daily tasks will involve building sophisticated distributed systems, managing scalable container-based infrastructures, developing REST APIs, integrating open-source solutions, and adapting our software to meet user needs. You will work in close collaboration with both technical and non-technical teams to identify challenges faced by our developers and clients, and to create software and infrastructure solutions that address these issues.

Join Edra: Transforming Enterprise AIEdra is tackling one of the most complex challenges in enterprise AI: bridging the gap between generic AI models and specific company processes. We develop AI agents that understand how processes function in real-time and execute operations effectively.As a Series A startup, supported by Sequoia and other prominent venture capital firms, we are expanding our presence in New York and London. Our team comprises highly skilled engineers, AI researchers, and strategists who share a commitment to excellence and believe that extraordinary talent is the cornerstone of our success.Your RoleWe are in search of Full Stack Engineers who are passionate about software craftsmanship, including strong type systems, thoughtful API design, and robust data modeling. You will not be solely focused on AI models but will build the surrounding architecture, workflows, user interfaces, integrations, and observability tools that make our AI applications practical and effective in real-world scenarios. As an early team member at Edra, you will play a pivotal role in shaping not just our products but also our engineering culture, tooling decisions, and the technical foundation of our company.Our approach is intentional and thorough. There is no disconnection between development and deployment; you will take projects from initial concept to production, taking full ownership of the results. We prioritize thoughtful construction over hasty releases, valuing both speed and quality as complementary rather than opposing forces.Key ResponsibilitiesDesign and implement platform systems using Python (FastAPI), covering everything from API contracts to database schemas and infrastructure, alongside creating high-quality user experiences using TypeScript and React, focusing on clean component design, strong typing, and maintainable frontends.Develop shared TypeScript and Python libraries, component systems, and internal tools to enhance the productivity of the engineering team, while defining and enforcing patterns, shared types, and contracts across the frontend and API.Take full ownership of your projects: gather requirements, manage dependencies, and drive tasks to completion autonomously. One day you might define a schema, the next day build a React component, and before the day ends, troubleshoot a deployment issue.Contribute to product direction and design. Collaborate closely with design teams, make informed decisions regarding interfaces, and actively participate in weekly product meetings to ensure alignment with customer needs and the practical use of your builds by deployed engineers.Develop and maintain integrations, connectors, and more to enhance the overall capabilities of our platform.

About the RoleAt april, we are in search of a highly skilled, innovative, and motivated Staff Full-Stack Engineer to join our team. You will be instrumental in defining the future of our platform while driving our mission to make tax processes seamless for everyone. Your role will involve architecting and developing scalable systems and tools that empower our teams to create outstanding user experiences swiftly and confidently. If you possess a passion for technical leadership, thrive on tackling complex architectural challenges, and aspire to make a significant difference for millions of users, we would be thrilled to have you on board. Candidates located in the New York City metropolitan area are expected to be on-site at least three days per week.ResponsibilitiesLead critical, cross-functional engineering initiatives from design through to deployment, ensuring both quality and scalability.Engage in technical decision-making and foster knowledge sharing across various teams.Work collaboratively with Product, UX, and other stakeholders to deliver integrated and data-driven solutions.Assess and implement new tools, technologies, and methodologies that elevate engineering standards.Lead by example, promoting service ownership, observability, and operational best practices throughout the engineering team.Foster a culture of excellence, emphasizing clean code, thorough testing, and continuous improvement.RequirementsMinimum of 8 years in software engineering, with at least 2 years in a senior, staff, or principal capacity.Demonstrated experience in designing and building distributed systems at scale in cloud-native environments (GCP or AWS).Expertise in backend technologies, including microservices, event-driven architectures, and REST/gRPC APIs.Proficiency with modern front-end frameworks (React, Vue, Angular) and full-stack engineering practices.Fluency in system design and architecture, adept at balancing scalability, performance, and developer experience.Proven track record in shaping technical direction and enhancing team capabilities.A strong passion for developing impactful, customer-centric products that are both data-rich and user-friendly.Excellent communication and collaboration skills; capable of working effectively across functions.

About Us:At Zealthy, we strive to democratize healthcare, ensuring that high-quality medical services are accessible to everyone, regardless of their location. Our aim is to create the largest and most reliable virtual healthcare platform, revolutionizing the delivery of care so that anyone, anywhere can receive the healthcare they deserve.Founded by a visionary healthcare entrepreneur with a demonstrated history of success, including scaling a previous venture to a $5 billion valuation, Zealthy is well-positioned for sustainable growth as we rapidly pursue our ambitious goals. Our relentless dedication to quality and accessibility is the cornerstone of our operations.Our team is passionately committed to serving our patients. While we maintain a Monday to Friday office culture that occasionally extends beyond standard hours, the true fulfillment comes from the difference we make in people's lives. Each team member plays a crucial role in building something extraordinary. As a full-time member, you will not only influence the future of healthcare but also share in our success through equity ownership, as we believe every contributor should be both a literal and figurative stakeholder in our mission.If you are ready to fully commit to your role and contribute towards building the world’s largest and highest-quality telemedicine service by working in-person four days a week, we encourage you to apply.The Role:We are seeking a dedicated and skilled Full Stack Developer to join our team full-time. This role is strictly in-person, based in New York, NY. If you are looking for remote or hybrid opportunities, this position may not align with your needs.What You'll Do:As a Full Stack Software Engineer at Zealthy, you will collaborate with a team of five full-time engineers and work closely with our Founder/CEO, who oversees product development. Your initial focus will be on iterating and enhancing our early product build to ensure it is prepared for scaling and transforming access to top-notch healthcare.You will engage in daily standup meetings, weekly sprint meetings (or a flexible Kanban approach), holding yourself accountable to an ambitious product development roadmap.In our early-stage startup environment, you may need to wear multiple hats, involving work across both front-end and back-end development, as well as potentially participating in or leading decisions regarding system architecture or DevOps.As the organization grows, you will have the opportunity to evolve into a leadership position, contingent on your performance and aspirations to lead. This discussion will evolve organically between you and the current leadership team.

About UsDaat Lab is a cutting-edge AI venture studio dedicated to partnering with businesses to leverage deep domain expertise and create innovative, commercially viable AI solutions. Our mission is to help organizations pinpoint and validate high-impact, AI-driven use cases. From the ideation phase and proof of concept to the development of market-ready products, we guide our clients through the entire process. With a focus on diverse industries such as real estate, digital marketing/e-commerce, and healthcare, we aim to introduce a new product to our portfolio every month.About the RoleWe are in search of a talented Full-Stack AI Engineer who will be instrumental in transforming ideas into products. Collaborating closely with our strategy team and business partners, you will identify valuable AI opportunities, steer product direction, and execute with agility. You will oversee the complete product lifecycle, which includes discovery, prototyping, building, launching, and iterating, often juggling multiple projects simultaneously. This role is best suited for a hands-on individual who thrives in dynamic environments and enjoys direct customer engagement.What You’ll Do:Lead multiple projects from conception to completion: ideating product concepts, generating proofs of concept (POCs) for evaluation, and overseeing builds to achieve a minimum viable product (MVP).Develop full-stack applications encompassing backend, frontend, data layers, infrastructure, deployment, and monitoring.Experiment with AI functionalities: apply classical machine learning techniques (forecasting, scoring, classification) and explore LLM/agent workflows and feedback loops.Establish engineering standards related to code quality, CI/CD practices, logging/analytics, and basic security protocols.Collaborate with design partners to deliver weekly updates and improvements.RequirementsYou should have:3+ years of experience shipping full-stack products end-to-end.Proficiency in Python and a modern web stack (React/Next.js, APIs, databases, and deployment).Fundamental knowledge of data processing and machine learning (pandas, Scikit-learn, PyTorch/TensorFlow, model evaluation).Experience experimenting with LLMs and agent frameworks (Open AI SDK, Google ADK, Langchain/Langraph, MCP).A comfort level with ambiguity, rapid cycles, and customer-facing iterations.Success Metrics:Deliver multiple POCs that clearly validate feasibility and return on investment (ROI).Transform at least one concept into a usable MVP with feedback loops from design partners.BenefitsCompetitive Salary: $110,000 - $140,000 (initially as a 1099 contractor, transitioning to full-time).Please note: Daat Lab operates independently and is not affiliated with Alchemy Worx.

We are seeking a talented and driven Full Stack Engineer to join our dynamic team at mlabs in New York. In this role, you will be responsible for developing and maintaining our web applications, ensuring a seamless user experience while collaborating with cross-functional teams to deliver high-quality software solutions.

About CinderCinder is at the forefront of internet security, providing an innovative platform designed to safeguard online environments. Our Trust & Safety and AI safety teams empower the world’s leading companies with robust solutions that facilitate rapid adaptation to evolving threats. Our software is instrumental in formulating policies, moderating content, enforcing regulations, investigating incidents, and countering threats such as hate groups and state-sponsored misinformation.We are on the lookout for a skilled Senior Software Engineer to join our dynamic team in developing an enterprise-level content safety platform aimed at enhancing online security.While we are primarily focusing on candidates located in the NYC area—home to the largest concentration of Cinder employees, facilitating our service to both US and EU/UK clients—we welcome applications from other locations. We value in-person collaboration and host at least two all-company events each year. Our benefits package includes health, vision, and dental coverage, as well as a 401(k) plan with employer matching.

Join Claylabs as a Full Stack Software Engineer!At Clay, our mission is to empower organizations to bring their growth ideas to fruition. We believe that growth is a creative journey rather than a mere formula. Identifying and engaging with your ideal customers requires unique insights and continuous innovation. In a rapidly evolving AI landscape where tactics can be easily replicated, creativity stands as the true differentiator.We have successfully partnered with thousands of clients, including industry leaders like Anthropic, Notion, Google, and Ramp, helping them leverage unique data, insights, and AI-driven research to effectively market their offerings.As of 2025, we celebrated exceeding $100 million in revenue and secured a $100 million Series C funding round, achieving a valuation of $5 billion. Our growth is supported by esteemed investors such as Sequoia, CapitalG, and First Round. Additionally, we have successfully executed our second employee tender offer and initiated a community equity round for our customers, agency partners, and club members.Here are some key highlights about Clay:Our community consists of over 11,000 customers, 150+ integration partners, 125+ agencies, 50+ Clay clubs, and 30,000 members on Slack.Our culture is vibrant both inside and outside of work, featuring team members who are DJs, activists, writers, marathoners, and more.All employees have the opportunity to work alongside world-class coaches specializing in creativity, management, and more.Our guiding principles — including negative maintenance and non-attached action — shape our approach to work. Learn more about them here.You can read more about our achievements in the New York Times.

Why Choose Charlie Health?In the United States, millions grapple with mental health challenges, substance use disorders, and eating disorders, often encountering significant barriers to receiving care. Limited local options, extended wait times, and impersonal treatment approaches can leave individuals feeling overlooked and unsupported.At Charlie Health, we aim to transform this experience. Our mission is to provide life-saving behavioral health treatment accessible to all. We offer personalized, virtual care that fosters connections—between clients and clinicians, care teams, loved ones, and their communities. Our focus on individuals with complex needs allows us to broaden access to impactful care, yielding improved outcomes from the comfort of home.As a fast-growing organization, we are reaching more communities daily and are building a team that is reshaping the landscape of behavioral health treatment. If you are eager to leverage your expertise to create lasting change and help individuals access the care they rightfully deserve, we would be excited to connect with you.About the PositionCharlie Health stands at the forefront of high-acuity virtual behavioral care, having provided transformative treatment to over 100,000 clients nationwide. Our Therapist Success team develops the technology that powers this care, enabling therapists to deliver consistent, high-quality treatment effectively.In this role, you will design tools that equip our therapists with the right information at the right moment. From organizing comprehensive client care histories to generating dynamic session summaries and playbooks, your contributions will enable clinicians to prepare, document, and make informed decisions in real time. The systems you create will bring order to intricate clinical data, enhance quality across our network, and ultimately improve the effectiveness of our care.If you are passionate about developing tools that allow therapists to prioritize care over administrative tasks, this team is perfect for you.

About the Role tetrix is hiring a Staff Full Stack Engineer in New York City. This position focuses on building and improving web applications using Python and JavaScript. The work centers on delivering reliable software and refining the platform’s user experience. What You Will Do Develop and maintain web applications with Python and JavaScript Work with teams across engineering, design, and product to deliver scalable solutions Help shape technical direction and ensure software meets customer needs Location This role is based in New York City.

At Confido, we are revolutionizing the AI infrastructure that drives consumer packaged goods (CPG) brands from deduction to production planning. Our integrated platform consolidates cash application, deductions, disputes, trade promotion management, forecasting, demand planning, and analytics, delivering significant time savings and intelligent decision-making capabilities for our customers.We proudly serve over 200 brands, managing more than $20 billion in revenue, including notable names like OLIPOP, Simple Mills, Dr. Squatch, and Tropicana. Recently, we have achieved exceptional growth and secured $15 million in Series A funding led by Footwork Ventures and Y Combinator to further accelerate our progress.Your RoleAs a Full-Stack Engineer (Early Career) at Confido, you will play a vital role in developing new product features and systems from the ground up. Collaborating closely with seasoned engineers, you will help create AI-driven workflows, enhance data systems, and design user-friendly product experiences tailored to our clients.This position is perfect for an early-career individual eager to learn rapidly, take initiative, and contribute meaningfully to a growing product.Primary ResponsibilitiesDevelop and implement product features across the stack under team guidance.Assist in building backend systems and data pipelines for financial data processing.Support the development of AI-driven workflows incorporating computer vision and natural language processing.Contribute to the design of user interfaces that simplify intricate financial workflows.Collaborate with engineering teams, product managers, and occasionally clients to iterate on features.Demonstrate a capacity for quick learning and progressively take on more responsibilities.Examples of Challenges You Might TackleDeveloping systems for data extraction from financial documents.Enhancing the scalability of data ingestion from diverse sources.Contributing to analytics and forecasting tools for CPG brands.Refining user experiences that convert complex data into actionable insights.QualificationsRequired SkillsHands-on experience through internships, academic projects, or equivalent in software engineering.Solid programming fundamentals in any language.A passion for technology and a desire to learn.

About UsAt Baton Corporation, we are pioneering the technology behind pump.fun, the foremost memecoin launchpad currently operational. Our systems are engineered for low latency and high throughput, operating under constant load, where precision is paramount.Your RoleIn the role of Senior Staff Full Stack Engineer, you will play a critical part in guiding the technical trajectory of our platform, engaging hands-on with both frontend and backend systems. You will tackle the most challenging cross-stack issues—focusing on performance, scalability, correctness, and architectural integrity in a dynamic setting.Architect and develop high-performance systems across the full stack, contributing directly to production code on both frontend and backend levels.Define and refine cross-stack architecture to accommodate user growth, product complexity, and real-time interaction needs.Lead intricate, multi-surface projects from inception to rollout, overseeing system design and implementation.Establish clear boundaries between frontend, backend, and blockchain infrastructure, ensuring systems are modular and scalable.Identify potential systemic bottlenecks (performance, data consistency, infrastructure limitations) and proactively devise robust solutions.Enhance performance, reliability, and observability across the stack.Rapidly prototype and validate innovative product concepts, ensuring successful experiments transition into production-ready systems.Elevate engineering standards through design reviews, architectural guidance, and hands-on mentorship.Serve as a technical anchor during critical launches, migrations, or incidents affecting multiple stack components.Enhance developer efficiency by evolving tools, CI/CD pipelines, testing strategies, and shared abstractions.

About the Role: Join our distinguished team at agencywithin as a Senior Full Stack Engineer, where you will be instrumental in developing both frontend and backend services for Brkfst. Your role will involve close collaboration with our data science team to host models and provide them through APIs. We are searching for engineers who embody a 'bias to ship' mentality and possess a strong sense of urgency. Our aim is to build compact teams of highly skilled professionals capable of autonomously solving problems and self-organizing to achieve our goals.

OverviewPosition: Lead Product EngineerWork Schedule: 5 days a week at our NYC HeadquartersCompensation: Base salary ranging from $180,000 to $300,000Equity: Attractive initial equity package along with refreshersExperience Required: 4+ years in relevant fieldsAbout Stratos LabsStratos Labs is revolutionizing the commodity risk management landscape for a $10 trillion physical economy. By integrating real-time market data with AI-driven exposure modeling and automated trade generation, we empower operators with effective strategies to mitigate volatility risks. Our platform offers seamless execution, constant monitoring, alerts, and insights, transforming intricate market risks into a fully managed hedging solution.Founded in 2023 by a distinguished macro market-maker from Barclays and a seasoned trading systems engineer from Coinbase, we have successfully secured over $20 million in funding from notable investors including Andreessen Horowitz (a16z), Crucible Capital, Neo, DST Global, and others.Your ResponsibilitiesTake ownership of key product features from inception through to deployment, iteration, and scaling.Design and develop high-performance user interfaces that deliver automated hedge recommendations, track open positions, and present real-time market data.Lead the redesign and enhancement of the product architecture across the entire stack, focusing on UI foundations and backend APIs to ensure speed, reliability, and scalability.Collaborate closely with founders and customers to shape product direction and convert complex risk workflows into user-friendly experiences.Drive the development of AI-integrated features, incorporating large language models and model-driven insights into critical operator workflows.Promote engineering best practices, mentor fellow engineers, and contribute to the evolution of Stratos Labs’ product and technical culture.