Senior Fullstack Engineer, Accounts

About UsAt Taptap Send, we are revolutionizing cross-border financial services for emerging markets. Our mission is to empower families, stimulate local economies, and transform how millions access essential financial services.Since our inception in 2019, we have redefined money transfer across borders, operating in 6 out of 7 continents and bridging both bu…

Join Baba as a Fullstack EngineerBaba is on a mission to transform healthcare for older adults, making it accessible and manageable. By 2030, the U.S. will see over 65 million seniors, presenting an enormous challenge in healthcare. We simplify this process by connecting these individuals with dedicated advocates—usually nurses or social workers—who coordinate their medical care. Our advocates have helped thousands of families with insurance appeals, specialist research, medical equipment procurement, and appointment scheduling.With backing from renowned investors such as General Catalyst and Soma Capital, our team is composed of over 50% former founders from esteemed institutions like MIT and Carnegie Mellon.Role OverviewAs a Fullstack Engineer at Baba, you will spearhead the development of innovative platform capabilities and integrate them with various systems. Your responsibilities will encompass the entire development lifecycle, from the voice AI infrastructure to the internal tools utilized by our advocates and providers. As we scale our services from thousands to millions of patients, you will design APIs, data pipelines, and product interfaces while ensuring high-quality care remains our priority.

Location: Fully remote (EMEA timezone)Start date: ASAPLanguage: Fluent English requiredIndustry: AI / Fintech / B2B SaaS Marketplace / Graph AIAbout UsPragmatike is on a mission to empower businesses with cutting-edge AI solutions. We are representing a dynamic, early-stage startup in Europe, backed by venture capital, that is creating an innovative AI-native B2B SaaS product.Our team is dedicated to building a data-driven platform that utilizes advanced AI technologies, emphasizing scalability, user experience, and intelligent automation. With our product already live, we are focusing on scaling operations, enhancing core functionalities, and solidifying our technical infrastructure.Join us in a fast-paced, collaborative environment that fosters product-driven development and innovation.Your RoleWe are seeking a Fullstack Engineer who excels in building and has a strong command of both frontend and backend technologies. You will leverage modern AI-assisted development workflows (e.g., Cursor, Claude Code) in a hands-on, product-focused capacity.In this role, you will be responsible for delivering features from conception to deployment, enhancing both frontend and backend systems, and integrating AI-driven functionalities into our core product. You will collaborate closely with founders to scale the platform and elevate user experience.Key ResponsibilitiesDesign and implement end-to-end product features across frontend and backend.Develop scalable backend services and APIs.Enhance frontend applications, focusing on user experience and performance.Integrate AI-powered features into the product (LLMs, workflows, automation).Utilize AI coding tools to expedite development and increase productivity.Maintain and optimize data pipelines (email, LinkedIn, CRM integrations).Streamline onboarding processes to facilitate quick user engagement.Collaborate on system design, architecture, and technical strategy.Ensure high performance, reliability, and scalability of the platform.Work collaboratively with founders on product direction and iteration cycles.Qualifications3–8+ years of experience in software engineering, with a robust portfolio of work.Proficiency in both frontend and backend technologies, including frameworks and languages relevant to our stack.Experience with AI tools and frameworks.Strong problem-solving skills and a collaborative mindset.

Join our dynamic team at Nagarro as an Associate Staff Engineer specializing in SQL Database Administration. We are seeking a motivated individual who is passionate about technology and eager to contribute to innovative projects. You will play a crucial role in managing and optimizing our database systems, ensuring high availability, and supporting application development efforts.

About RainAt Rain, we are pioneering the future of payments on a global scale. Our dedicated team of innovative builders and seasoned founders is committed to making stablecoins practical for everyday transactions. With our advanced infrastructure, we facilitate card transactions, cross-border payments, B2B transactions, remittances, and much more. By collaborating with fintech companies, neobanks, and various institutions, we empower them to deliver solutions that are not only global but also inclusive and efficient. Join us to create significant change at a rapidly growing company backed by leading investors in the fintech, crypto, and SaaS sectors, including Sapphire Ventures, Norwest, Galaxy Ventures, Lightspeed, and Khosla. If you are driven, curious, and eager to contribute to a borderless financial future, we want to connect with you.Our PhilosophyWe embrace a culture of openness and flat hierarchies, allowing you to develop in a role that aligns with your aspirations. All team members, regardless of their position, are encouraged to explore ideas and influence the direction of the company.Role OverviewAs a Fullstack Software Engineer at Rain, you will play a pivotal role in developing our rewards and co-brand platform. Your responsibilities will include maintaining, enhancing, and building third-party rewards programs, primarily in collaboration with our major league sports partners, and integrating new payment solutions into these applications. You will take charge of the technology stack and code that underpins our rewards and co-branded payment initiatives.Key ResponsibilitiesContribute significantly to the technical and product roadmapDevelop products across our stack utilizing React, Typescript, NextJS, Tailwind, and NodeJS, focusing on RewardsLead architectural decisions and drive the technical roadmap as we scaleEngage with smart contracts across multiple blockchain networksQualificationsProficiency in JavaScript, React, Typescript, NextJS, Tailwind, NodeJS (experience in a subset of these technologies is acceptable)A passion for building, including personal projects that showcase your skillsThis role is suited for candidates with 4+ years of experience; compensation will be aligned with your backgroundPreferred QualificationsExperience in fintech (particularly with neobanks or card issuance is a plus)Familiarity with decentralized applications (dApps)

At StubHub, we are on a transformative journey to elevate the live event experience globally. Whether it's a person's first ticket purchase or their hundredth, our mission is to provide enjoyment and satisfaction from the moment they start their search until they enter the venue. We also cater to our sellers, from fans listing a single ticket to promoters of major tours, ensuring StubHub is the safest and most convenient platform for millions of users worldwide.Join us as a Software Engineer II, where you will be instrumental in designing and developing cutting-edge technologies and intricate features. In this role, you will face significant challenges and contribute to innovative solutions that drive our success. We seek individuals with a proactive attitude and a passion for problem-solving. Your career here will involve diverse projects aligned with business needs, and we value versatility, a growth mindset, and enthusiasm for tackling new challenges. Location: Hybrid (3 days in office/2 days remote) – New York, NY About the Team: The Consumer Experience (CX) team is dedicated to enhancing the product experience for fans discovering, buying, and selling tickets through our web and mobile platforms. We are committed to fulfilling StubHub’s mission to be the leading global destination for live events by crafting engaging experiences for millions of fans daily. Our focus is on understanding user needs and delivering both short-term and long-term feature innovations that are effective and enjoyable. With operations in over 60 regions and 30 languages, we prioritize a personalized experience for every user. Our cross-functional team collaborates on product, design, engineering, and data, fostering a culture of innovation through diversity of thought and transparency.

Join our dynamic team at counsel as a Senior Fullstack Software Engineer, where you will play a pivotal role in designing and developing cutting-edge applications. You will collaborate with cross-functional teams to build scalable and efficient software solutions. This is an opportunity to leverage your expertise in both front-end and back-end technologies to create impactful products.

At CLEAR, we are pioneering the future of secure identity. Our mission is to enhance safety and convenience in both physical and digital experiences. With over 38 million members and a rapidly expanding network of partners worldwide, our secure identity platform is revolutionizing how individuals live, work, and travel. Whether at airports, stadiums, or in everyday situations, CLEAR is committed to providing seamless experiences for our members. As a recognized leader in digital and biometric identification, CLEAR is dedicated to minimizing friction during ID checks for our members. We are in search of a talented Senior Software Engineer to contribute to the development of next-generation products that extend beyond traditional ID solutions, empowering our members to harness the full potential of a connected digital identity. In this role, you will engage in the design, implementation, testing, and deployment of applications that enhance our platform, ensuring that member privacy and security remain paramount.

Role Overview Sigma Computing is growing its engineering team in New York City. The Senior Fullstack Software Engineer will help shape how users explore and interact with data. This role focuses on building technology that makes data more accessible and intuitive for a broad audience. What You Will Do Work on complex problems to create interactive experiences for data warehouse users, making analysis and exploration easier. Use modern programming languages and tools, including Rust, Go, GraphQL, and Kubernetes, throughout the development process. Build infrastructure to support Sigma Computing's cloud application. Develop algorithms and techniques that improve performance and interactivity in a multi-tenant cloud environment. Design and implement new features and technologies for a rapidly expanding user base. Collaborate across backend, frontend, design, product, customer support, sales, and marketing teams to deliver a strong product.

Join our innovative team at Sonsoft Inc. as a .Net Engineer! We are looking for a skilled engineer who is enthusiastic about developing high-quality software solutions. In this role, you will work collaboratively with cross-functional teams to design, implement, and maintain robust applications. Your expertise in .Net technologies will be pivotal in driving our projects forward.

Join WRITER: The Future of AI-Powered WorkAt WRITER, we're revolutionizing the workplace with our cutting-edge AI solutions. Our mission is to augment human capabilities through superintelligence, enabling seamless collaboration between IT and business teams to drive transformative outcomes. Our comprehensive platform empowers renowned organizations such as Mars, Marriott, Uber, and Vanguard to create and deploy AI agents powered by WRITER's enterprise-grade LLMs. With a valuation of $1.9B and support from top-tier investors like Premji Invest, Radical Ventures, and ICONIQ Growth, WRITER is solidifying its status as a frontrunner in the enterprise generative AI landscape.Founded in 2020, we have established offices in San Francisco, New York City, Austin, Chicago, and London. Our dynamic team is fueled by a passion for innovation, and we are eager to welcome talented builders and thinkers to help shape the future of work with AI. Position OverviewWe are looking for a talented fullstack Software Engineer to join our engineering team, focusing on the development of sophisticated AI-driven agent systems. These systems will autonomously execute workflows and manage complex tasks, significantly enhancing productivity across enterprise applications. As a key contributor, you will design, develop, and scale next-generation AI agents that integrate seamlessly with enterprise data and services to address real-world challenges. Collaboration with cross-functional teams will be essential in transforming intricate agent concepts into fully operational systems.‍ Key ResponsibilitiesArchitect, implement, and sustain scalable, secure agent-driven services and systems leveraging modern AI frameworks.Build and enhance robust infrastructure and high-throughput APIs, concentrating on critical agent capabilities such as memory management, communication protocols, skills, intelligent decision-making, security, and workflow oversight.Integrate agent functionalities with backend services, data repositories, vector databases, search/retrieval systems, and third-party APIs.Work closely with product managers, AI researchers, data engineers, and UX teams to convert high-level agent use cases into resilient, production-ready software.Ensure the reliability, monitoring, and observability of all agent components, including metrics, logging, CI/CD processes, and fault tolerance.Participate in architectural design discussions and conduct thorough code reviews to maintain high-quality standards.

About Co-founderCo-founder is at the forefront of developing an autonomous agent platform that seamlessly integrates with essential tools such as Gmail, Slack, Notion, Linear, Google Workspace, GitHub, and Airtable. Our mission is to create a powerful operating system tailored for one-person billion-dollar companies.Key ResponsibilitiesLead end-to-end product development for the agent experience, encompassing workflows, integrations, and UI/UX design.Design and refine workflows: creation, management of execution criteria, reliability, and observability.Expand and enhance integrations, while ensuring depth in existing connections.Innovate UI/UX to craft unique and engaging human-agent interactions.Apply product intuition to simplify complex user experiences, ensuring they remain powerful yet user-friendly.Deliver features across the technology stack, maintaining a close feedback loop with users (frontend and backend).Enhance performance, reliability, and cost-effectiveness of agent operations and workflow executions.Develop instrumentation, analytics, and developer tools to accelerate the iteration process.Uphold high standards for code quality, including testing, observability, and comprehensive documentation.QualificationsMinimum of 4 years of experience in building and launching user-facing products from start to finish.Frontend expertise: Proficient in React/Next.js (or equivalent), TypeScript; knowledgeable in component-driven development, performance profiling, accessibility, data management, and UI optimizations.Backend proficiency: Skilled in Python FastAPI, background workers/queues, webhooks, and Postgres (or equivalent) for schema design, transactions, and migrations.Strong foundation in testing and observability practices (unit/integration tests, metrics, traces, structured logging).Proactive approach to shipping: focus on delivering minimal viable products quickly, instrumenting, and iterating based on user feedback.Preferred QualificationsExperience with event-driven architectures (e.g., Inngest/Temporal), WebSockets, and real-time user interfaces.Familiarity with LLM/agent dynamics: tool usage patterns, prompt management, safety mechanisms, and evaluation strategies.Knowledge of infrastructural tools (e.g., Render, Modal, Supabase, Redis Cloud, or similar), as well as CI/CD processes and feature flagging.Why Join Us?Directly impact engaged users; your contributions will be visible and significant.Be a part of building the foundational technology for autonomous agents.

About N1:N1 is an innovative blockchain network that is hyper-performant and horizontally scalable. Our mission is to facilitate trustless computing at the scale of the internet, revolutionizing the way digital interactions occur.Our talented team comprises individuals with diverse backgrounds from prestigious institutions such as Harvard, Carnegie Mellon University, DFINITY, VMWare, and Galaxy Digital. We are proud to be supported by leading investment firms like Founders Fund, Kraken Ventures, SALT, and Amber Group.Position Overview:We are excited to invite a Full-Stack Software Engineer Intern to join our dynamic engineering team. This full-time role will involve the development of robust front-end, server-side, and database applications, with a primary focus on blockchain technology. Ideal candidates should be detail-oriented, innovative, and possess a strong product mindset. You will take ownership of enhancing our web platforms and internal tools, ensuring they are user-friendly, secure, and high-performing.

About Sei LabsAt Sei Labs, we are pioneers in developing open-source technology for the high-performance Sei Blockchain, the first EVM Layer 1 blockchain designed for parallelization and industry-scale performance. Our unique optimizations enable Web3 applications to achieve Web2 levels of scalability and efficiency, fostering the widespread adoption of digital assets.Our talented teams are composed of industry veterans from leading companies like Google, Goldman Sachs, Robinhood, Nvidia, and Databricks, all dedicated to onboarding the next billion users into a thriving ecosystem of applications.Having raised over $30 million from prestigious investors such as Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders, we are positioned for significant growth.Discover more about us on our website and explore our documentation.About the RoleSei Labs is on the lookout for a Fullstack Software Engineer to help redefine the future of Web3 by enabling innovative, impactful applications across the Sei Blockchain. In this role, you will collaborate with a team at the leading edge of blockchain technology, working closely with our ecosystem partners to develop state-of-the-art decentralized applications (dApps) that span various Web3 domains—from decentralized exchanges (DEXs) and gaming to decentralized physical infrastructure networks (DePin), artificial intelligence, and more. If you thrive in a fast-paced, community-oriented environment and are passionate about continuous learning and rapid development, this is an exceptional opportunity to expand the frontiers of decentralized technology.

Join Labella Associates as a Mechanical Engineer, where you will be at the forefront of innovative engineering solutions. In this role, you will design, develop, and implement mechanical systems and components, ensuring they meet both functional and safety standards. Collaborate with a talented team of engineers and contribute to exciting projects that make a real impact.

Join us as a Mechanical Engineer in our dynamic Building Engineering Division at LaBella Associates in Rochester, NY. Our team provides comprehensive building engineering services, including mechanical, electrical, plumbing, and structural engineering. We handle everything from feasibility studies and analysis to project design and construction. Our engineers excel in new construction, renovations, additions, analysis, special structures, and design/build projects for a diverse range of clients.As a Mechanical Engineer, you will collaborate with fellow engineers in a project team to deliver HVAC, plumbing, and fire protection designs, studies, and technical support necessary to meet project specifications. Your responsibilities will include fieldwork, design, and construction administration services.The ideal candidate will demonstrate the ability to work cohesively within a team to develop innovative concepts, strategies, designs, drawings, specifications, and reports for Building and Renovation projects.

Cloaked is a pioneering privacy startup focused on restoring consumer confidence in the management of personal data. Our mission centers around building an internet that prioritizes user needs, with personal privacy and opt-in consent at its foundation. Our innovative product functions as a virtual “cloak”, allowing users to navigate any website—be it Facebook, Amazon, or others—while providing the option to share complete, partial, or no personal information according to their preferences.

Vendelux empowers organizations to uncover the most impactful events. Event marketers are pivotal to the growth of successful companies, orchestrating everything from lead generation to brand building throughout the year. Our mission at Vendelux is to enhance the effectiveness of every event a company sponsors and attends.As a Series A SaaS enterprise, we serve as the definitive system of record for event marketing. Our innovative software platform delivers proprietary insights that enable high-growth companies to identify the events, conferences, and trade shows with the highest return on investment. Our AI-powered solutions have been described by clients as an event marketer’s dream.Founded in 2021, Vendelux recently secured $14 million in Series A funding led by FirstMark, an investor in renowned companies including Shopify, Pinterest, Discord, and Airbnb. Our leadership team comprises veterans from top firms such as Bain, ZoomInfo, Shutterstock, Compass, and more.While data-driven marketers enjoy myriad tools for optimizing their digital ad spend, event marketers have been somewhat underserved—until now. We create advanced tools that enable event marketers to make data-informed decisions, transcending the traditional limitations of merely scanning badges.As we expand, we are seeking Senior Software Engineers who can deliver critical features and implement significant infrastructure enhancements.

Join our dynamic team at LaBella Associates as a Senior Civil Engineer in Poughkeepsie, NY! We are looking for an experienced professional with at least 15 years of expertise in civil engineering to lead projects and manage teams. This role demands a highly personable individual with a proven track record in project management and client relations. You will ensure project schedules are met while cultivating partnerships with new business prospects and project partners. Your extensive engineering knowledge will be invaluable as you navigate the complexities of civil engineering projects.Key Responsibilities:Work independently and collaboratively within a team environmentDevelop detailed site plans from initial concept through to construction completionDesign stormwater management systems, water and wastewater facilities, roadway and parking layouts, along with detailed specificationsPrepare comprehensive inventory assessments, analyses, and reportsCraft professional service proposalsManage existing clients while actively developing new client relationshipsOversee multiple projects, timelines, and budgetsFormulate technical approaches to projects and engage in public presentations and speaking engagementsSalary Range: $130,000 - $150,000 annuallyThe offered salary will reflect a variety of factors, including the candidate's relevant experience, education, and work location.

Join our dynamic team at LaBella Associates as a Substation Physical Engineer! We are seeking an experienced professional with over 5 years in the field to contribute to our Building Engineering Division. Our division specializes in comprehensive engineering services, including mechanical, electrical, plumbing, and structural engineering. We handle a variety of projects from feasibility studies and design to construction, catering to a diverse clientele.This position offers a significant opportunity for career advancement, with immediate chances to take on leadership roles. Enjoy a competitive starting salary, incentive compensation, and a robust benefits package, with potential pathways to become a LaBella shareholder.Key Responsibilities:Design components of substations including control buildings, equipment support structures, and assembly drawings.Perform essential calculations related to grounding, lighting, and cable ampacity.Collaborate closely with project managers to define scope and conceptual designs.Engage with clients and coordinate project activities effectively.