Frontend Engineer

Zuma Labs; Greater London; On-site; GBP 70,000 - 110,000; Full time

Job summary

Zuma Labs is a London-based startup building disruptive trading technology for OTC markets. You will join a founder-led team, delivering front-end features with autonomy and ownership, directly impacting how brokers and customers interact with our tools.

As a senior frontend developer, you will shape the UI architecture, craft reusable components, and collaborate with design, product, and backend teams to ship high-quality software quickly.

Qualifications

• Strong TypeScript and React experience (React 16+).
• Experience with React Testing frameworks like Jest and Enzyme.
• A keen sense of design and desire to build a better mousetrap.
• General understanding of supporting infrastructure: git, microservices, containers, etc.
• Comfortable working with numbers and data, with or without prior trading/finance experience.

Responsibilities

• Build and maintain cutting-edge front-end applications in TypeScript and React.
• Collaborate with product, design, and backend teams to ship features that directly affect users and brokers.
• Work in a fast-paced, high-autonomy startup environment where your decisions matter immediately.
• Solve real-world problems with practical solutions, applying creativity and technical skill.
• Develop reusable components, design systems, and contribute to front-end architecture.
• Identify UI/UX and performance bottlenecks and implement improvements.

Skills

TypeScript

React

Testing (Jest/Enzyme)

Design mindset

Git/Microservices/Containers

Data fluency

Tools

Material UI

WebSockets

CI/CD

End-to-end testing

Job description

Zuma Labs is a disruptive technology startup building force multipliers for systemic industries. Our first two products, Venetian and Squawk, target the over-the-counter (OTC) trading markets. We work closely with our customers and count a large publicly traded brokerage among our partners. Trading technology is an old industry… and we’re here to change that. At Zuma Labs, we value creativity, entrepreneurship, and a genuine passion for problem-solving—but what we’re really looking for are born-and-bred hackers with a healthy disrespect for the status quo.

About the Role

You will work directly with the founder, experienced brokers, and traders, providing input that immediately impacts the business. You’ll be given broad tasks that support the company’s vision, with incredible autonomy over how to achieve them. Your work will apply the latest analytical techniques to real-world problems, prioritising working solutions over perfect answers. We want self-starters who are confident but humble, willing to ask questions, seek advice, and iterate fast.

Responsibilities

• Build and maintain cutting-edge front-end applications in TypeScript and React.
• Collaborate with product, design, and backend teams to ship features that directly affect users and brokers.
• Work in a fast-paced, high-autonomy startup environment where your decisions matter immediately.
• Solve real-world problems with practical solutions, applying creativity and technical skill.
• Develop reusable components, design systems, and contribute to front-end architecture.
• Identify UI/UX and performance bottlenecks and implement improvements.

Qualifications

• Strong TypeScript and React experience (React 16+).
• Experience with React Testing frameworks like Jest and Enzyme.
• A keen sense of design and desire to build a better mousetrap.
• General understanding of supporting infrastructure: git, microservices, containers, etc.
• Comfortable working with numbers and data, with or without prior trading/finance experience.

Required Skills

• Experience building Single Page Applications (SPAs).
• Experience with Material UI or similar component libraries.
• Familiarity with WebSockets and real-time applications.
• Knowledge of CI/CD pipelines and end-to-end testing frameworks.

Pay range and compensation package

Work in a high-impact startup environment where your work immediately affects the business. Collaborate directly with founders, traders, and product experts. Apply your technical skills to real-world problems that go beyond theoretical exercises. Grow as a developer and problem solver in a culture that encourages creativity, ownership, and experimentation.

Equal Opportunity Statement

We are committed to diversity and inclusivity.