Full Stack Engineer

Junior

👶 ABOUT JUNIOR We're building cutting-edge LLM-powered tools that supercharge investment research for the world's most demanding deal teams. Our clients include several of the top 10 global private equity firms, Big 4 professional services firms, and leading consulting practices: organisations responsible for deploying billions of dollars annually. We're a profitable, bootstrapped company with a growing team of ~28 people based in London and New York. We 10x'd our revenue in 2025 and are on track to grow 2-3x again this year. Junior saves clients an average of 10 hours per week, and we're expanding fast into new verticals including investment banking, hedge funds, and research firms. 💡 ROLE DESCRIPTION As one of our first engineering hires, you'll have the unique opportunity to: * Ship quickly * Design and build new modes of working with computers * Work on groundbreaking projects involving LLMs * Collaborate closely with our external partners to fuel our growth * Contribute to product decisions, direction and prioritization * Shape our engineering culture 🔧 SAMPLE SET OF PROJECTS * Build new frontier products at Junior to ingest more types of research inputs * Build a voice-to-voice survey tool with extremely low latency that can autonomously conduct high volume of research tasks * Build a mobile app from scratch in 3 weeks * Create segmented knowledge graphs built on top of the output of unstructured ⇒ structured data transformations * Build an AI native CRM system with deep links to the knowledge graph above 🔥 ABOUT YOU We're looking for product-minded full-stack engineers who: * Based in NYC * Are eager to contribute to product decisions * Have strong communication skills and a desire for a client-facing role * Are proficient in our tech stack: Next.js, TypeScript, PostgreSQL * Bonus points for experience building & designing AI-powered products! * Feel like you are never building fast enough 🌵 BENEFITS All the usual benefits (competitive pay and equity, private healthcare etc). Unusual benefits: * Gym membership * In-office cook * Summers working in Greece by the beach If you're excited about the opportunity to drive innovation at Junior, we'd love to hear from you!We can't wait to meet you! 🙌

Superstate

Tired of the inefficiencies and complexities of traditional finance? We are too. At Superstate, we create investment products that benefit from the speed, programmability, and compliance advantages of blockchain tokenization.   As a staff full stack engineer at Superstate, you will help lead our team in building well designed user experiences that are unique, trustworthy and scalable across all Superstate frontend properties. You will also be given the opportunity to influence the direction, design and execution of all future product experiences.

Atg

ABOUT US ATG (Autonomous Technologies Group) is an AI lab deploying frontier reasoning systems within financial markets. Founders: Early GPU cloud (9 figure exit). Investors: Garry Tan / YC + Founder of one of the most successful quant funds, BoxGroup (Plaid, Ramp, Stripe), top-tier angels. ABOUT THE ROLE You’ll build core user interfaces, APIs, and backend infrastructure. You’ll operate across the stack: designing, shipping, and maintaining everything from frontend product experiences to backend services that power strategy, data, and operations. This role is ideal for someone who likes shipping end-to-end, cares about craft, and enjoys working in a small team with high ownership. RESPONSIBILITIES * Design, build, and maintain frontend applications (web and/or mobile) and backend APIs powering core product experiences. * Work closely with research/quant and product teams to turn investment logic, simulations, and data pipelines into reliable product surfaces. * Build internal dashboards, tools, and data visualizations for monitoring portfolios, experiments, and operational workflows. * Own features end-to-end: architecture, implementation, testing, deployment, observability, and iteration. * Maintain high standards for code quality, usability, reliability, and performance. * Improve developer velocity through good systems: CI/CD, tooling, clear interfaces, and pragmatic documentation. REQUIREMENTS * 3+ years experience as a full stack engineer (startup, product team, or high-ownership environment). * Strong skills in modern JavaScript/TypeScript frameworks (e.g., React, Next.js) and backend development (Python, Node, Go, etc.). * Experience building, testing, and deploying production web applications. * Experience designing and integrating APIs (REST and/or GraphQL), plus strong understanding of data modeling and system boundaries. * Solid fundamentals: debugging, performance, and reliability in real-world systems. * Ability to work autonomously, prioritize well, and thrive in a fast-moving, research-driven culture. * Comfort leveraging modern AI coding tools (Cursor, Claude Code, Codex, etc.) to increase output while maintaining maintainability and structure. * (Optional) Experience with mobile development (React Native, Swift, Kotlin, Flutter). * (Optional) Experience with financial systems, portfolio data, or high-stakes UX. Why Join ATG We're building a small, elite team. If you're excited by AI, markets, and building from first principles, we’d love to meet you. * Work on AI with a massive market opportunity * Early team of repeat founders backed by top investors * High agency, talent dense, zero bureaucracy