The Role  We’re looking for a Senior UI Engineer to join our team and play a critical role in building and shaping the firm’s internal UI platform. This is a high-impact, hands-on engineering position where you’ll contribute not just as a front-end specialist, but also as a platform thinker – helping to evolve our UI infrastructure that powers 100+ business applications across the firm. You’ll work in a dynamic, fast-paced environment where product requirements evolve, and business stakeholders are deeply engaged. Your engineering skills, UX sensibility, and product mindset will all be utilized as you craft industry-leading UI platform and ecosystems. What you’ll do You’ll be a key contributor to our UI platform and a technical partner to product owners building on top of it. You’ll help evolve our technical stack and development tools by contributing to architectural improvements, shared components, and implementation consistency across cross-functional teams. At the same time, you’ll work closely with product teams or business stakeholders, helping shape feature definitions, and building high-impact UI solutions directly into their applications. Your development responsibilities will span full-stack, including web front-end, backend integration, API design, performance optimization, and system observability. You’ll also be involved in the team’s code quality and best practices, mentor junior engineers, identify gaps in development lifecycles, and continuously improve both the core platform and how developers build with it. What you’ll bring What you need: • 5+ years of professional experience in UI engineering, with at least 2 years in a role leading or designing front-end architectures • Advanced React/TypeScript expertise — proven ability to architect large-scale, performant component systems, drive front-end technical standards, and mentor teams on modern React patterns (hooks, composition, performance optimization • Strong background in UI/UX design collaboration — partnering directly with users and stakeholders to iterate on application design, translating business requirements into user stories and journeys, and shaping world-class screens that drive engagement and adoption • Experience partnering closely with product management to translate vision and business requirements into shipped application UI — working across the product development lifecycle from concept and requirements to design iteration and delivery • Comprehensive, hands-on experience using AI throughout the development lifecycle (e.g. Codex, Claude, Copilot) — required fluency in leveraging AI to decompose and solve engineering problems, build and operate agents and skills to scale delivery, and evolve SDLC practices around agentic workflows • Strong familiarity with common enterprise JavaScript frameworks, such as Redux, Zustand, RxJS • Hands-on experience with advanced data grid and charting tools integrated with real-time or high-volume datasets • Proficiency in writing unit tests and E2E tests utilizing popular frameworks like RTL, Mocha, Jest, Cypress, Playwright • Experience leading the technical lifecycle of complex UI applications, from architecture and technology selection through implementation, deployment, scalability, and production reliability. • Experience identifying opportunities to incorporate AI capabilities into user feature or development workflows We’d love if you had: • Experience in building internal tools for trading, analytics, or compliance in Finance or Fintech businesses • Experience with AWS cloud services (EC2), Kubernetes-driven deployments, and modern CI/CD pipelines • Experience designing and operating high-throughput, event-driven data pipelines on Apache Kafka or Apache Spark • Experience implementing or maintaining design systems • Familiarity with React-based micro-frontend architectures and patterns for building modular UI • Proficiency in one or more backend languages such as Go, Python, Java, Rust • A strong voice for engineering excellence: You advocate for best practices, challenge outdated patterns, and help elevate our standards through thoughtful critique in team discussions • Excellent communication skills: Partner closely with business stakeholders to turn high-level concepts into technical plans, UX wireframes, or prototypes Who we are  Schonfeld is a global multi-manager hedge fund that strives to deliver industry-leading risk-adjusted returns for our investors. We leverage both internal and external portfolio manager teams around the world, seeking to capitalize on inefficiencies and opportunities within the markets. We draw from decades of experience and a significant investment in proprietary technology, infrastructure and risk analytics to invest across four main strategies: Quant, Tactical, Fundamental Equity and Discretionary Macro & Fixed Income. Our Culture At Schonfeld, we’ll invest in you. Attracting and retaining top talent is at the heart of what we do, because we believe that exceptional outcomes begin with exceptional people. We foster a culture where talent is empowered to continually learn, innovate and pursue ambitious goals. We are teamwork-oriented, collaborative and encourage ideas—at all levels—to be shared. As an organization committed to investing in our people, we provide learning and educational offerings and opportunities to make an impact. We encourage community through internal networks, external partnerships and service initiatives that promote inclusion and purpose beyond the firm’s walls. The base pay for this role is expected to be between $200,000 and $250,000. The expected base pay range is based on information at the time this post was generated. This role may also be eligible for other forms of compensation such as a performance bonus and a competitive benefits package. Actual compensation for the successful candidate will be determined based on a variety of factors such as skills, qualifications, and experience.