Fullstack Software Engineer - Incubations

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 digi…

Join Flex, a rapidly growing FinTech company headquartered in New York City, as we revolutionize the rent payment process. It's 2026, and we believe that paying rent should be affordable, flexible, and hassle-free. Our mission is to empower renters with the ability to pay their rent on a schedule that aligns with their financial needs. After establishing a strong foundation of investor support and a dedicated user base, we are seeking passionate individuals to join our team and help us drive our mission forward.As a Senior Fullstack Software Engineer, you will play a crucial role in propelling our company’s growth. Your expertise will be vital in developing and scaling our platform and application experiences, ultimately facilitating our ambitious goal of achieving 10x growth.

At StubHub, we are committed to revolutionizing the live event experience on a global scale. Whether it's a fan's first concert or their hundredth game, our goal is to provide an exceptional journey from ticket search to entry. This extends to our sellers as well; from individual fans to large promoters, we aim to make StubHub the premier platform for ticket transactions worldwide.We are in search of experienced Senior Software Engineers to create innovative technologies and intricate features that enhance how millions of users discover, engage with, and attend live events globally. As a Senior Software Engineer, you will play a key role in shaping our commercial and product strategies. Your focus will be balanced between understanding user needs and making astute commercial decisions. Our Senior Software Engineers are vital to our success, demonstrating initiative and enthusiasm in addressing challenges. At StubHub, we pride ourselves on being an exceptional and inclusive workplace. You will also act as a mentor and advocate for your team members, showcasing leadership qualities.Location: Hybrid (3 days in office/2 days remote) – Aliso Viejo, CA or New York, NY or Seattle, WAAbout the Team:The Supply team's mission is to streamline the experience for our large-ticket sellers by simplifying the onboarding and inventory management process throughout the entire event lifecycle. We empower sellers to minimize operational burdens and maximize revenue through intelligent automation and efficient workflows that operate at marketplace speed. Our infrastructure consists of enterprise-grade, high-throughput systems that support core seller operations and manage extensive, dynamic datasets. Our work encompasses multiple layers of the technology stack, from robust back-end services to high-performance, user-focused interfaces, ensuring that sellers have a reliable platform they can trust to manage their business.

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 SomethingsAt Somethings, we are pioneering a revolutionary social wellness platform specifically designed for teens. Our mission is to create a supportive environment where young individuals can build meaningful relationships with mentors who truly understand them, are dedicated to their growth, and provide the guidance necessary for them to flourish.In the U.S., 25 million teens face mental health challenges, and each of the countless teens who engage with Somethings requires assistance. Our goal is to ensure that these individuals do not merely use the platform, but instead connect with compassionate humans who are devoted to their well-being and help them thrive.With backing from General Catalyst and esteemed healthcare and consumer investors, we are experiencing rapid growth — achieving a remarkable 1100% increase in 2025 and aiming for a fivefold growth in 2026.If you aspire to contribute to a transformative company within the mental health sector, we welcome you to join us.Role OverviewWe are seeking a Senior Fullstack Software Engineer specializing in React to join our dynamic, high-impact engineering team. You will play a pivotal role in constructing the foundational web experiences that empower our mentors and operational teams.This position offers high levels of agency, craftsmanship, and impact:You will directly influence the platform experiences that assist teens in connecting and genuinely improving their lives.What You'll DoIn this role, you will take complete ownership of essential projects that align with our strategic objectives for 2026:1. Transform our Mentor Operations Platform into a world-class experienceDeliver web experiences that are fast, reliable, and deeply human-centric.Evolve the mentor web experience from basic functionality to a cohesive, elegant, and leading-edge platform.Create user interfaces that are as intuitive and refined as the best consumer applications.Prioritize performance, accessibility, and interaction quality.2. Develop tools that safely scale our mentor operationsDesign features for mentors that enhance consistency, speed, and connection.Implement safety measures that proactively identify risks and minimize human error.Refine mentor workflows to empower users rather than overwhelm them.3. Take charge of full-stack product developmentBuild comprehensive features across React, backend services, and APIs.Engage in close collaboration with design, product, growth, and clinical operations teams.

About Us:At Camber, we are dedicated to revolutionizing healthcare through innovative software solutions. Our mission is to enhance the quality and accessibility of healthcare by eliminating tedious manual tasks, allowing clinicians to concentrate on what truly matters: delivering exceptional care. To learn more about our vision, please visit our detailed write-up: What is Camber?We have successfully secured $50M in funding from prestigious investors including a16z, Craft Ventures, YCombinator, Manresa, and others who are passionate about improving healthcare accessibility. For further insights, check out: Announcing CamberCompany Culture:Our commitment to transforming behavioral health is deeply ingrained in our operations. We aim to not only innovate in behavioral health but also redefine how startups function. Here are key aspects of our culture:1) We are passionate about enhancing healthcare accessibility and quality; every member of the Camber team is devoted to supporting clinicians and patients alike.2) We believe in the power of humor. The complexities of the healthcare system can be overwhelming, and we choose to tackle them with a light-hearted approach.Role Overview:As a Senior Staff Software Engineer at Camber, you will play a crucial role in crafting reliable, high-quality software that addresses significant challenges and drives essential workflows. You will provide technical leadership, oversee comprehensive solutions, and foster growth within your team.Key Responsibilities:Lead Technical InitiativesFacilitate architectural discussions and guide technical decision-making within your team.Establish and uphold standards for quality, performance, maintainability, and scalability.Oversee End-to-End Project DeliveryLead the execution of intricate features from design through to production deployment.Ensure the reliability, performance, and scalability of all delivered solutions.Mentor and Develop Team MembersGuide engineers through pair programming, code reviews, and design discussions.Cultivate a culture of continuous learning and improvement within the team.Drive InnovationPropose and implement improvements to enhance overall process and product quality.

About ArtemisAt Artemis, we are at the forefront of a transformative shift where traditional finance is seamlessly integrating with digital finance. As a leader in this space, we are building an open data platform that consolidates and standardizes crucial metrics for blockchains, tokens, and stablecoins.Our solutions are trusted by industry giants such as Visa, Circle, Tether, Grayscale, and Franklin Templeton, and our mission is to empower individuals globally to become world-class investors in digital finance.Who We AreInspired by the resilience and determination of explorers like Ernest Shackleton, we are a dedicated team of professionals from diverse backgrounds including traditional finance and crypto. Our culture is founded on passion, mental fortitude, and the drive to tackle challenging problems. Join us if you're ready to make an impact!

Playground builds software to help child care providers manage their businesses more efficiently. The platform supports thousands of schools across the United States, with a focus on making high-quality child care more accessible. The company has secured millions in funding and holds several statewide contracts, reflecting strong momentum in the education technology space. Playground’s founders have been recognized on the Forbes 30 Under 30 list for their work in child care technology. The team values a culture where ownership and collaboration are central. Engineers at Playground regularly work together on challenging projects that have a direct impact on customers and the broader child care sector. Role overview This Staff Software Engineer position is based in New York City. The role centers on building and improving Playground’s core products as the company grows. Engineers here contribute to significant technical decisions and help shape the future of the platform. What you will do Work on complex software projects that support child care businesses nationwide Collaborate closely with other engineers and teams to deliver high-impact solutions Take ownership of technical challenges and contribute to a culture of shared responsibility Requirements Experience leading or contributing to large-scale software projects Ability to work effectively in a collaborative, team-driven environment Based in or willing to work from New York City

Join Maybern as a Staff Software Engineer, where you will play a crucial role in designing and developing innovative software solutions. We are seeking a talented individual who thrives in a collaborative environment and is passionate about creating high-quality code.Your responsibilities will include leading software design, implementing scalable applications, and mentoring junior engineers. This position offers an exciting opportunity to influence the technology stack and contribute to groundbreaking projects.

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.

At Genius Sports, we combine cutting-edge technology with premier live data to revolutionize the sports experience for fans around the globe. Our mission is to create more immersive, interactive, and personalized experiences than ever before. Discover more about us at geniussports.com.The Role - Staff Engineer - Infrastructure Platform We are on the lookout for an exceptional Staff Engineer to spearhead critical projects within our core infrastructure platform. Genius Sports is currently integrating its diverse tech teams and acquisitions under a cohesive technical strategy, and our infrastructure platform is the foundation of this transformation. Our primary objective is to empower engineering teams to efficiently build, deploy, and manage Genius Sports’ extensive product catalog in a consistent manner. In this role, you will collaborate with fellow InfraPlat leaders to define and execute the technical vision and implementation across an array of projects. These initiatives encompass multi-account and region Kubernetes clusters, MLOps, standardized deployment processes, and a centralized authentication platform. You will also engage with stakeholders from product engineering teams to assess requests, identify common challenges, and prioritize initiatives.

Note: This position requires U.S. citizenship. All work must be performed within the continental United States, and all supported programs require this eligibility. Raft builds advanced AI, machine learning, and data solutions for U.S. military and government agencies. The team focuses on autonomous data fusion, Agentic AI, distributed data systems, and scalable platforms. Raft’s digital products support millions of users nationwide. Learn more at https://TeamRaft.com. Role overview The Staff Software Engineer will work from one of several locations: Rome, NY; Hanscom AFB; or the NCR Area. This role centers on designing and implementing solutions that manage the lifecycle of clusters and applications. What you will do Design, develop, and implement solutions for cluster and application lifecycle management. Work directly with clients to architect, build, and deploy Kubernetes or Docker solutions in both cloud and on-premises environments. Create and maintain CI/CD pipelines to support development workflows. Apply GitOps practices to improve software delivery and operations.

Role overview arch.co seeks a Staff Software Engineer to join the team in New York City. The role centers on designing and building software that advances the company’s mission. Collaboration with colleagues from various teams is a regular part of the work, with a focus on delivering solutions that have real impact. What you will do Plan and develop software features in partnership with cross-functional teams Design new systems and enhance those already in place Apply technical expertise to projects that influence the company’s direction Location This role is based in New York City.

Join our dynamic team at Harvey as a Staff Software Engineer, Agents. In this pivotal role, you will leverage your expertise to develop innovative solutions that drive our agent technology forward. Collaborate with cross-functional teams, enhance our product offerings, and ensure the highest quality standards in software development.

Traba connects industrial businesses with thoroughly vetted workers, aiming to make workforce management more efficient and dependable. The company focuses on orchestrated multi-agent AI workflows to optimize supply chain operations. Investors include Founders Fund, Khosla Ventures, and General Catalyst. This Staff Software Engineer role is part of Traba’s founding team in New York City. The position focuses on backend services and platform development, with a direct line to the CTO. This engineer will help set the technical direction and build systems that support Traba’s long-term growth. What you will do Design and develop core backend services and platform components Collaborate with the CTO on architectural decisions and technical strategy Contribute to defining and refining the product and technology roadmap Build foundational systems to enable Traba’s scaling and future expansion

About UsAt Maybern, we are revolutionizing the fund management landscape for private fund managers through innovative technology solutions. Founded by industry-leading engineering experts, our focus is on delivering exceptional software tailored to the needs of the fund management sector.With private funds managing over $15 trillion in capital and experiencing a remarkable 20% year-over-year growth, there is an increasing demand for top-tier software that addresses regulatory challenges and enhances transparency for CFOs.Maybern is dedicated to equipping investment managers with user-friendly and adaptable fund management software, allowing them to concentrate on their primary goal: maximizing investor returns. We are proud to be supported by prominent venture capital firms and a diverse array of strategic investors.Based in New York City, Maybern fosters a collaborative in-office culture and is eager to welcome talented individuals to our team.

P-1473 At Databricks, we are dedicated to empowering data teams to tackle the world's most challenging issues — whether that's bringing the next mode of transportation to life or accelerating groundbreaking medical advancements. Our mission is fulfilled through the creation and operation of the world's premier Data Intelligence Platform, enabling our clients to harness deep data insights to enhance their operations. Born from an engineering background and fueled by customer-centricity, we eagerly embrace every opportunity to confront technical challenges — from designing next-generation UI/UX for data interaction to scaling our services and infrastructure across millions of virtual machines. And this is just the beginning. As one of the pioneering fullstack engineers at our NYC Engineering office, you’ll join a dynamic team committed to innovating and building new products from the ground up. Our aim is to leverage the capabilities of Databricks in data and AI to deliver vertical AI applications tailored for both technical and business users. This role embodies a true 0-to-1 environment, blending the excitement of a startup with the resources of a tech powerhouse like Databricks. Your primary challenge will involve utilizing the latest UX/UI technologies to craft intuitive yet robust interfaces for complex data and workflows. Your team is adopting a UI-first and GenAI-first strategy in product development. You may work on challenges such as: Designing interfaces for GenAI agents capable of generating intricate workflows while ensuring human oversight through transparency and inspectability. Creating sophisticated visualizations, including data pipelines, data mappings, customer journey flows, identity graphs, and more. Establishing mechanisms that promote product-led growth through effortless onboarding and sharing functionalities. Fostering an interactive environment for collaborative data projects at scale with a seamless transition to production.

About AlphaSense: AlphaSense empowers the world's leading companies to eliminate uncertainty in decision-making. Our platform offers unparalleled market intelligence and search capabilities, powered by advanced AI technology, delivering trusted insights from a vast array of reliable sources. Our extensive content universe includes equity research, company filings, event transcripts, expert calls, news articles, trade journals, and proprietary client research. The recent acquisition of Tegus by AlphaSense in 2024 enhances our collective mission to enable professionals to make informed decisions through AI-driven insights. Together, we are accelerating growth, innovation, and content development, providing users with the tools to extract deeper insights from thousands of data sets. With over 6,000 enterprise clients, including a significant number of S&P 500 companies, AlphaSense is a leader in the industry. Founded in 2011 and headquartered in New York City, we have a diverse workforce of over 2,000 employees globally, with offices in the U.S., U.K., Finland, India, Singapore, Canada, and Ireland. We invite you to join our journey!About the Team:Our Product & Engineering team thrives on innovation, collaboration, and continuous enhancement of our platform. We foster a vibrant work culture where our team members can develop professionally while engaging with cutting-edge technology that defines the future of AI and search.At AlphaSense, we understand that diverse backgrounds and viewpoints are essential for our success. We are dedicated to cultivating an inclusive environment where every employee feels valued and empowered to express their authentic selves.About the Role: We are on the lookout for a Staff Software Engineer who will spearhead the design, evolution, and reliability of our global financial data extraction and normalization system. This platform processes filings in various formats (HTML, PDF, APIs, spreadsheets), extracting and standardizing financial data through a blend of AI and deterministic systems, delivering traceable and trustworthy outputs at scale to financial service teams and clients.This individual will be responsible for the self-sourcing and extraction framework utilized by multiple teams across the organization. Presently, human validation serves as a safety net. Your objective is to systematically decrease reliance on human input by enhancing system accuracy, assurance, and trustworthiness, all while maintaining speed and scalability.

Welcome to Oscar! We are excited to announce an opening for a Senior Staff Software Engineer to become a vital part of our Engineering team. Oscar is pioneering the health insurance industry with a comprehensive technology platform designed to prioritize our members' needs. Founded in 2012, we envisioned a health insurance company that operates like a caring family doctor, dedicated to serving our community. About the Role As a Senior Staff Software Engineer, you will take charge of designing and enhancing our cutting-edge claims and payment processing systems within our distributed team. Your innovative work will cover a wide range of challenges, including contract and pricing configuration, system extensibility through our proprietary Domain-Specific Language (DSL), and optimizing data pipeline architecture for greater efficiency. You will leverage artificial intelligence to tackle complex problems, automating and refining processes that were previously labor-intensive and prone to errors. Your primary focus will be on constructing scalable and dependable systems that uphold the accuracy and efficiency of our claims and payment workflows. You will report directly to the Director of Software Engineering. Work Location: This position will be based out of our New York City office, following a hybrid work model that requires three days in the office each week. Thursdays will be dedicated to in-office team meetings and events, while the other two office days will be flexible based on your schedule. #LI-Hybrid Pay Transparency: The base salary for this role ranges from $192,000 to $252,000 annually. In addition, you will be entitled to employee benefits, access to Oscar's unlimited vacation policy, company equity grants, and performance-based annual bonuses.

At PermitFlow, we are transforming the construction landscape in America through the power of applied AI. Our innovative platform addresses a critical challenge in the construction industry: determining what can be built, where, and how. Our intelligent AI agents empower leading construction firms to efficiently manage permitting, licensing, inspections, and project closeouts, thereby accelerating the development of housing, clean energy, and infrastructure nationwide.Despite the construction sector's massive $1.6 trillion size, it often faces significant delays, capital wastage, and missed opportunities. PermitFlow has already enhanced the speed, accuracy, and transparency of over $20 billion in projects, enabling contractors to streamline compliance processes, mitigate project risks, and scale operations with greater assurance.As the U.S. embarks on a new capital expenditure supercycle encompassing data centers, manufacturing facilities, residential projects, and renewable energy, joining PermitFlow means contributing to the foundational AI infrastructure that will power a new era of industrialization.With over $90 million raised, including our recent Series B funding round, we are backed by prestigious investors such as Accel, Kleiner Perkins, Initialized, Y Combinator, Felicis, and Altos Ventures, alongside influential leaders from OpenAI, Google, Procore, ServiceTitan, Zillow, PlanGrid, and Uber.Our headquarters are located in New York City, where we operate on a hybrid work schedule (3 days in-office per week). We are particularly interested in candidates based in NYC or those willing to relocate.