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Software Engineer Java Full Stack Developer jobs in New York· Page 5

Results 81–100 of 5,409 for “Software Engineer Java Full Stack Developer” in New York.

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Traba logo
Full-time|$140K/yr - $200K/yr|On-site|New York City, NY

Traba connects businesses with vetted industrial workers through technology designed to streamline staffing and supply chain operations. The team builds autonomous, orchestrated multi-agent AI workflows to make these processes more efficient. Backed by investors including Founders Fund, Khosla Ventures, and General Catalyst, Traba is focused on transforming …

Apr 27, 2026
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DoubleVerify logo
Full-time|$99K/yr - $178K/yr|On-site|NYC Global HQ

Position OverviewJoin our innovative team as a Senior Full Stack Engineer I at DoubleVerify, where you will play a pivotal role in enhancing our full-stack billing system. Your expertise will help our clients leverage DoubleVerify’s extensive suite of products through the development of robust backend services and user-friendly frontend applications. We are a technology-driven organization that thrives on solving complex challenges with cutting-edge solutions. In this collaborative environment, you will liaise with various development, product, and client services teams, focusing on delivering exceptional user experiences.

Mar 6, 2026
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Squarespace logo
Full-time|$128.5K/yr - $231.5K/yr|Hybrid|New York City

At Squarespace, we are transforming the way individuals realize their visions online. Our Research and Development Engineering teams are central to this mission, crafting seamless and powerful experiences that our customers depend on daily. As a Senior Backend Engineer, you will join a collaborative and high-impact team dedicated to developing scalable and reliable systems behind some of the web's most intuitive tools. Whether you bring three years or two decades of experience, if you are driven by a passion for designing elegant solutions, we invite you to connect with us. This is a hybrid position, requiring three days per week in our NYC office, reporting directly to the Engineering Team Manager. We are actively hiring across multiple significant R&D teams. Based on your expertise and interests, you may have the opportunity to join one of the following: Identity and Access Management (IAM) - responsible for developing and maintaining the fundamental systems that ensure secure access across our platform for both customers and internal teams, focusing on core functionalities such as authentication, authorization, and session management. Communications Platform - provides tools and services that facilitate effortless communication between our product teams and customers at scale. Our goal is to create user-friendly and impactful platforms. This role is high-visibility and high-impact as our work is utilized by a majority of product teams. Your Responsibilities Include: Developing scalable backend services using Java and related technologies. Writing clean, efficient code that supports high-traffic, production-ready systems. Contributing to design decisions and taking part in architectural discussions. Collaborating with engineers, designers, and product managers. Creating features from initial concept through to implementation and launch.

Mar 23, 2026
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Sonsoft Inc. logo
Full-time|On-site|New York

Join our innovative team at Sonsoft Inc. as a Core Java Developer! We are seeking a passionate individual who thrives in a collaborative environment and is eager to tackle challenging projects. In this role, you will be responsible for developing high-quality Java applications that meet the needs of our clients. Your expertise will help drive our technical solutions and enhance our product offerings.

Jul 14, 2017
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Mindlance logo
Full-time|On-site|Rochester

Join our dynamic team as a Java Software Engineer where you will leverage your programming skills to develop high-quality software solutions. Collaborate with cross-functional teams to deliver innovative applications that meet the needs of our clients. If you are passionate about technology and eager to take on challenging projects, we want to hear from you!

Oct 3, 2016
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Patlytics logo
Full-time|On-site|New York

Patlytics develops AI-powered tools for patent intelligence, supporting legal and intellectual property teams as they protect and monetize IP. The platform relies on generative AI and large language models to simplify patent workflows, including drafting and litigation, and provides timely, accurate insights. After raising $40M in Series B funding led by SignalFire, Patlytics is expanding its product suite and growing its global presence. The company values diversity, creativity, and an entrepreneurial approach. Curiosity and a drive to improve IP intelligence shape the team’s work. Role overview The Full Stack Software Engineer will build and deliver features across the platform’s stack. This platform is trusted by Fortune 500 legal and IP teams. The position plays a part in reshaping how intellectual property is managed and protected.

Apr 21, 2026
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Kontakt.io logo
Full-time|On-site|New York, New York

Kontakt.io is revolutionizing the way care operations are managed.Our mission is to minimize waste, lower costs, and enhance revenue by optimizing asset utilization and boosting staff productivity.Leveraging AI, RTLS, and EHR data, our platform empowers self-learning agents to automate workflows, adapt in real-time, and seamlessly orchestrate all aspects of care delivery operations. It is designed for easy deployment and scalability, providing a comprehensive overview of spaces, equipment, and personnel, thereby eliminating inefficiencies and enhancing the patient experience. With a remarkable 10X return on investment and over 20 successful use cases, Kontakt.io stands as the preferred platform for expedited and improved care delivery operations.We invite you to join us in creating the next generation of patient-flow intelligence. As a Full Stack Engineer at Kontakt.io, you will design and develop systems that manage patient milestones, identify and mitigate discharge barriers, and proactively address unit-level bottlenecks. Your contributions will play a pivotal role in enhancing care delivery by automating escalations and facilitating high-census communications throughout hospital operations.

Nov 20, 2025
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iCapital Network logo
Full-time|$110K/yr - $135K/yr|On-site|New York, New York, United States

Join our Team as a Full Stack Engineer!At iCapital Network, we are seeking a talented Full Stack Engineer who will be responsible for the development and enhancement of our software platforms. You will be involved in the complete software development lifecycle, collaborating closely with our Product Management team to gather requirements, review ongoing work, and troubleshoot any issues that arise during testing.

Mar 13, 2026
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Odyssey logo
Full-time|$160K/yr - $180K/yr|On-site|New York, NY

Join Odyssey:At Odyssey, we are dedicated to revolutionizing access to exceptional education nationwide, irrespective of income or location. Our innovative technology simplifies educational choices for parents in the regions we serve. By collaborating with state agencies and educational vendors, we streamline the process that empowers parents to secure the essential tools for their children's success.As the pioneering company focused on education savings accounts (ESAs), our platform currently facilitates programs that assist over 200,000 students in accessing more than $2 billion in state funding.Role Overview:As a Full Stack Engineer at Odyssey, you will play a pivotal role in developing the foundational technology that drives our platform. Your work will span the entire technology stack, including program eligibility systems, educational fund ledgers, and a marketplace that allows schools and vendors to process tuition and service payments.This position emphasizes the creation of full-stack systems, which encompasses scalable services, APIs, data models, frontend user interfaces, and internal tools designed to support families, educational institutions, providers, and operational teams as our platform expands.By joining our dynamic team, you will utilize your expertise to make a tangible difference in the quality and accessibility of K-12 education throughout the United States.Your Responsibilities:Design, architect, and develop engaging functional experiences for users leveraging TypeScript, AWS Lambda, Next.js, and a variety of other technologies.Create, implement, and execute robust testing protocols to ensure the reliability and stability of our applications.Develop sophisticated database models with a focus on scalability and performance optimization.Build and maintain APIs for both public and internal utilization, enhancing our mobile applications and other systems.Collaborate with the product team to drive ongoing enhancements of Odyssey’s Marketplace platform.Work with cross-functional teams to identify challenges, devise solutions, and close product gaps.Encourage open communication within the team, sharing both obstacles and achievements transparently.Participate in system design, platform management, code reviews, and capacity planning.

Jan 5, 2026
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Glide logo
Full-time|On-site|New York City

Welcome to Glide!At Glide, we are revolutionizing the banking experience for today's digital landscape. Our innovative embedded fintech platform enables traditional financial institutions, such as community banks and credit unions, to create cutting-edge digital experiences for their clients.Join our elite team comprised of engineering, product, and growth experts from renowned companies like Stripe, Google, and Amazon. We seek a skilled Full Stack Engineer at the early stages of their career to contribute to the development of our platform. Help us redefine the outdated financial sector!Why You Will Enjoy This Position (Especially as a New Graduate):An exceptional chance to collaborate directly with Glide’s founders and senior engineers, gaining insights from industry leaders.Acquire practical, hands-on experience across the full stack, from architectural design to deployment.Contribute to a nimble, fast-paced startup environment where your code will have a tangible impact.Receive mentorship and learn about engineering best practices, product development, and startup dynamics in a real-world setting.Your Key Responsibilities:Effortlessly navigate between frontend and backend to create a well-tested, secure frontend for our primary web product.Develop reliable and secure user experiences by crafting interfaces that are simple, dependable, and high-performing using tools like TypeScript, React, Node.js, and Next.js.Architect a scalable solution capable of servicing hundreds of thousands of users.Transform designs into beautifully written code.Define a long-term technical strategy and vision for enhancing and expanding our web product suite.Oversee frontend and backend infrastructure and tooling to support an ambitious product roadmap.Essential Qualifications:Proficiency in JavaScript and frameworks such as TypeScript, React, Node.js, and Next.js.Familiarity with modern, responsive HTML & CSS.Experience with data fetching libraries like React Query.

Feb 2, 2026
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Loop logo
Full-time|On-site|New York, NY

Loop develops AI-powered tools that help large companies organize and act on supply chain data. By connecting information from sources like PDFs, emails, and legacy software, Loop enables Fortune 100 firms to automate payments and audits. The company’s mission is to strengthen the financial systems behind freight logistics, making operations smoother and ensuring carriers receive timely payments. Supported by investors such as Founders Fund, Index Ventures, and 8VC, Loop is expanding quickly. Engineers at Loop work on production-ready AI that impacts the physical economy. Role overview This New Graduate Software Engineer position is a full-stack role based in New York. The program is designed for recent or soon-to-be graduates, offering a year-long experience that packs three years of learning into one. Participants work on real projects from the start, gaining hands-on experience and seeing their code make a difference for customers. Program structure Week 1 (Onboarding): Learn Loop’s tools and domain. Write production code from day one and complete a full development cycle by the end of the week. Months 1-3 (Velocity): Tackle three entry-level projects, each more complex than the last. By the end of this phase, operate independently as an engineer. Months 4-9 (The Rotation): Rotate through several teams to broaden your skills: Platform: Contribute to AI infrastructure and engineering systems. Core Product: Work on audit, billing, and payments features. Commercial: Support revenue-focused projects and forward deployed engineering. Special Projects: Collaborate with Loop’s CEO, CTO, and other leaders. Month 9+ (Graduation): Demonstrate mid-level engineering skills and become eligible for immediate promotion. Who succeeds in this role Loop values more than academic achievement. The team looks for individuals who enjoy building, solving complex challenges, and striving for exceptional results. Those who go beyond the expected and want to make a real impact will thrive here.

Apr 24, 2026
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Verse Medical logo
Full-time|On-site|New York City

Join us at Verse Medical as a Full Stack Software Engineer, where your innovative ideas and technical skills will help drive the future of healthcare technology. We are looking for passionate individuals who are eager to learn and grow in a dynamic and collaborative environment.

Mar 5, 2026
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Standard Template Labs logo
Full-time|$160K/yr - $230K/yr|On-site|NYC, NY

Standard Template Labs is an innovative, stealth-mode startup that harnesses the power of AI to redefine IT Service and Configuration Management. Supported by top-tier investors, we are committed to revolutionizing how enterprises manage and interact with their technology ecosystems through cutting-edge AI, graph-based architecture, and exceptional design.About the RoleWe are on the lookout for talented Full Stack Engineers with extensive experience in designing and developing enterprise-grade applications. In this role, you will take ownership of building user-facing features and backend services from inception to deployment, working collaboratively with designers, product engineers, and infrastructure specialists.ResponsibilitiesFeature Ownership: Design, implement, test, and deploy user-facing functionality and backend APIs.Define the Stack: Engage with front-end, backend, and database layers to contribute to the selection of our technology stack.AI Integration: Incorporate AI/LLM capabilities into workflows to enhance the intelligence and efficiency of ITSM.Performance Optimization: Develop high-performance, secure, and scalable services tailored for enterprise clients.Cross-Functional Collaboration: Collaborate with platform engineers on infrastructure and with product/design teams to enhance user experience.Enhance Developer Productivity: Contribute to internal tools, maintain code quality, and promote CI/CD best practices.Security & Compliance: Integrate enterprise-grade security and compliance (SOC 2, ISO 27001) from day one.Deliver Customer Value: Create features that resonate with enterprise users, moving beyond the outdated tools they currently use.

Sep 9, 2025
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Innovative Solutions LLC logo
Full Stack Cloud Engineer

Innovative Solutions LLC

Full-time|On-site|Reports into Rochester, NY

Join our dynamic Professional Services team as a Full Stack Cloud Engineer, where you will play a crucial role in developing, deploying, and maintaining essential applications for our clients. This position combines strategic thinking with hands-on technical skills to enhance client environments and ensure the delivery of robust, scalable solutions.Key Responsibilities:- Design and construct modern, highly scalable cloud applications tailored for our customers.- Migrate and modernize legacy systems utilizing AWS services.- Collaborate with Project Managers and clients to devise technology roadmaps that align with business objectives.- Engage actively in team discussions and cross-functional collaborations.- Keep stakeholders informed about project progress and challenges.- Contribute to client project status meetings and research initiatives to assess new service offerings.- Stay abreast of emerging technology trends and propose innovative solutions.- Develop and manage backend infrastructure, APIs, and integrations using languages such as Python, Java, and PHP.- Participate in code reviews and document infrastructure as code, assisting with UI/UX design.- Create frontend interfaces and dashboards using frameworks like Angular and React.- Implement best practices for security, compliance, and business continuity across all cloud solutions.Success Factors:- Ability to bridge the gap between technical intricacies and business needs through effective problem-solving.- Build trust and foster collaboration with team members and departments.- Embrace challenges and maintain a high level of technical knowledge.- Communicate confidently with diverse stakeholders to translate technical requirements into impactful solutions.- Commit to continuous personal and professional development.

Jul 30, 2025
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Somethings logo
Full-time|$180K/yr - $250K/yr|On-site|New York City

About SomethingsAt Somethings, we are pioneering the first social wellness platform designed specifically for teens. Our mission is to connect teens with mentors who understand and support them, facilitating meaningful relationships that promote growth and healing.With 25 million teens in the U.S. facing mental health challenges, each download of our app represents a potential lifeline. We strive to ensure that not only do these teens engage with our platform, but they also build connections with caring individuals who can guide them towards a healthier future.Backed by General Catalyst and leading investors in healthcare and consumer markets, we are experiencing rapid growth—having increased our user base by 1100% in 2025 and projecting to multiply our reach fivefold in 2026.If you are eager to contribute to a company that is poised to redefine mental health support for a generation, we invite you to join us.Role OverviewWe are seeking a Full Stack React Native Engineer to become part of our dedicated engineering team. In this role, you will play a vital part in developing the core product experiences that propel our mission forward.Your work will be characterized by high agency and a profound impact:You will actively influence the product features that help teens connect and improve their well-being.What You’ll DoYour responsibilities will extend beyond just building features; you will take complete ownership of critical projects aligned with our strategic objectives for 2026:1. Create Enriching Teen × Mentor ExperiencesDevelop engaging mobile experiences that evoke warmth, speed, and a human touch.Enhance the onboarding process and early engagement to optimize the initial user journey.Design user interfaces that are as intuitive and addictive as leading social applications.2. Develop Scalable Tools for Our Mentor NetworkBuild mentor-focused features that enhance consistency, efficiency, and connectivity.Create safety mechanisms that proactively identify risks and mitigate human error.Refine mentor workflows to ensure they feel empowered by our tools.3. Lead Full-Stack Product DevelopmentConstruct end-to-end features utilizing React Native, backend services, and APIs.Collaborate closely with design, product, growth, and clinical operations teams.Conduct user interviews with teens and mentors to gain deep insights into their needs.

Mar 27, 2026
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EliseAI logo
Full-time|On-site|New York City

About EliseAIAt EliseAI, we are dedicated to transforming critical sectors such as housing and healthcare. These are fundamental needs that everyone deserves, yet they often come with unnecessary hurdles. By seamlessly integrating AI agents into existing workflows, we enhance efficiency, lower costs, and elevate the overall experience for all users.Housing: We revolutionize the renting experience by simplifying apartment tours, lease signings, maintenance requests, and ongoing communication with property management—bringing all essential services into a single platform.Healthcare: We streamline the process of scheduling appointments and completing intake forms, facilitating better communication between patients and providers, so everyone can prioritize health over paperwork.By working with EliseAI, organizations can minimize manual tasks, enhance accessibility, and provide a flawless user experience across vital services. We are excited to have recently secured a $250 million Series E funding led by Andreessen Horowitz to propel our mission forward.About The RoleAs a Senior Full Stack Software Engineer at EliseAI, your work will transcend mere coding; you will develop software that enhances operational efficiency and positively impacts lives. Rather than adhering to a predefined path, you will be paving the way. Each day will present opportunities to strategize on scaling our solutions and executing them effectively. Collaborating within a small team of exceptional engineers, you will take on substantial responsibilities, lead initiatives, and witness your concepts come to fruition—essentially functioning like a startup within a startup.Key ResponsibilitiesCollaborate within a cross-functional team alongside frontend, backend, and machine learning engineers, as well as product managers, to design and deliver engaging user-facing products and features while enhancing existing functionalities.Play a pivotal role in propelling our product development by spearheading the launch of beta offerings and actively engaging clients for feedback and iterative improvements.Develop frontend solutions that address complex functionalities with a strong emphasis on user experience.Focus on creating modular components that are reusable across various parts of the application.

Jun 20, 2025
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Amperos Health logo
Full-time|On-site|NYC

About Amperos HealthAmperos Health stands at the forefront of transforming revenue cycle management (RCM) in the healthcare sector. As a pioneering provider of multi-modal RCM solutions, we empower healthcare clinics to enhance their revenue collection processes with speed and efficiency. Established in 2023 and supported by prominent investors including Uncork, Neo, Nebular.vc, and industry experts from OpenAI, Stripe, and Twilio, our mission is to bridge the gap between healthcare providers and payers. Our innovative vision is to deploy an AI-driven workforce that minimizes administrative burdens and accelerates revenue flow.About the RoleAs we develop our advanced platform to streamline administrative workflows for healthcare providers, we invite talented full stack engineers to join our team. Your role will involve creating an integrated workflow platform, developing and productizing AI agents, and exploring the interaction between humans and AI within our software. Collaborating closely with our clients, you will address significant inefficiencies in RCM workflows.At Amperos, you will engage with cutting-edge AI challenges and leverage the latest technologies to prototype comprehensive solutions for workflow optimization and productization.What You’ll DoCollaborate with clients to design and implement end-to-end agentic workflows.Develop features utilizing voice AI, browser agents, and generative AI technologies.Create traditional full-stack functionalities, tools, and automations to support agentic products.Take the lead on projects from inception through execution.Gain in-depth knowledge of RCM workflows to better empathize with users and inform sound engineering decisions.Who We’re Looking ForFull-stack engineers with a strong product mindset, particularly with backend expertise in developing LLM products.Proactive problem solvers who engage directly with customers rather than merely following specifications.Individuals eager to innovate in a tech-underrepresented industry and delve into healthcare billing and revenue cycle management.Versatile team players ready to tackle any task, no matter how small.Self-directed individuals who thrive with minimal guidance and take pride in their ability to overcome challenges.

Oct 3, 2025
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Sapien logo
Full-time|On-site|Sapien HQ — NYC

About UsSapien is revolutionizing the operational dynamics of finance teams in the AI era. Our vision is to create an autonomous CFO—a comprehensive system managing company financials seamlessly. Our platform provides real-time analytics of intricate financial data, enhancing decision-making speed, mitigating costly errors, and delivering substantial value. We have successfully identified multi-million-dollar discrepancies, preserved thousands of jobs, and significantly boosted our clients' profitability.Partnering with diverse industries—manufacturing, healthcare, dining, and large corporations—we strive to thoroughly grasp and automate their financial workflows. Based in Madison Square Park, NYC, we have garnered support from General Catalyst, Neo, and leading professionals from Google, OpenAI, Microsoft, Ramp, and Stripe, raising over $9M.Position OverviewAs a Full-Stack Engineer, you will develop features from inception to deployment for Sapien's core platform. This encompasses transforming designs into frontend implementations, crafting backend APIs, modifying databases, and integrating agents. You will take ownership of the entire user experience, ensuring functionality and performance.In this role, you will strike a balance between launching innovative features and maintaining platform stability and performance. Engaging directly with clients, you will observe how they utilize your developments and refine them based on genuine feedback.Key ResponsibilitiesDevelop features that position Sapien as an essential tool for finance teams, crafting experiences that engage users daily by proactively delivering insights and addressing potential issues before they escalate.Create intuitive interfaces that simplify complex operations for finance professionals lacking technical expertise.Establish human-in-the-loop systems allowing users to provide feedback, rectify mistakes, and educate the system on specific business processes, enhancing agent intelligence over time.Make pivotal product and technical choices: determine feature functionalities, UI design, database architecture, and appropriate technologies. You will not merely implement specifications; you will conceptualize what to build.QualificationsProficient in modern web technologies such as React, TypeScript, Python, SQL, and common backend frameworks. While you don’t need to be an expert in all areas, you should be capable of navigating the entire stack.A product-oriented mindset, prioritizing user experience in your development approach.

Dec 17, 2024
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Bubble, Inc. logo
Full-time|On-site|NYC, New York

Join Bubble, Inc., a leading platform revolutionizing mobile application development, as a Senior Full Stack Engineer. In this pivotal role, you'll leverage your expertise to create seamless mobile experiences that empower users to build and manage applications effortlessly.Your responsibilities will include designing and implementing robust backend systems, enhancing front-end interfaces, and collaborating with cross-functional teams to drive innovative solutions. You will play a crucial role in shaping the future of the mobile platform, ensuring optimal performance and user satisfaction.

Feb 26, 2026
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Novig logo
Full-time|$170K/yr - $225K/yr|On-site|85 5th Avenue, New York, NY, 10003

Full Stack EngineerSalary: $170,000 – $225,000 • Meaningful EquityAbout NovigAt Novig, we are revolutionizing sports betting by creating America’s premier sports prediction market. Founded by visionaries Jacob Fortinsky and Kelechi Ukah, our platform uniquely offers commission-free sports trading, delivering enhanced pricing, complete transparency, and an efficient market structure by moving beyond the conventional sportsbook model.Supported by top investors from Silicon Valley, Novig has raised over $100 million from notable names such as Pantera, Forerunner, Lux, NFX, Paul Graham, and Joe Montana.Our MissionWe are dedicated to transforming a flawed system where the house consistently wins and fans lose. Our goal is to democratize and innovate sports betting, creating an equitable market where users are empowered.Why You Should Join UsEager to collaborate across the entire tech stack to develop advanced sports betting infrastructure.Leverage technologies from modern financial exchanges to promote transparent and efficient market practices while ensuring an enjoyable user experience.Significantly influence both the market engine and the user interface.Create and sustain a developer-friendly API experience for algorithmic trading and advanced users.Enhance product features by extending backend services and contributing to frontend components.Scale real-time data ingestion, processing, and distribution systems.Work closely with Design and Product teams to create efficient and user-friendly interfaces.Contribute to architectural and system design decisions across the technology stack.Enhance observability and reliability of both backend and frontend systems.Bring a passion for sports, markets, and technology, along with an inquisitive mindset for complex computer science challenges.Hold a Bachelor’s or Master’s degree in Computer Science or a related technical field.Possess a minimum of 3 years of professional experience in building full-stack applications.Demonstrate proficiency in a systems programming language.

Aug 1, 2025

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