Senior Frontend Engineer

Metamindz UK; City Of London; Remote; GBP 80,000 - 100,000; Full time

Job summary

A growing startup in fintech seeks a Senior Frontend Engineer to take ownership of frontend projects from design to delivery. The ideal candidate has over 7 years of experience, expert-level skills in React and TypeScript, and thrives in a fast-paced, startup environment. This fully remote role offers competitive compensation and the opportunity to shape product direction before Series A funding.

Benefits

Competitive monthly compensation

Opportunities for technical leadership

Culture where your voice matters

High impact with no bureaucracy

Qualifications

• 7+ years of commercial engineering experience required.
• Proven startup experience necessary.
• Ability to deliver independently while collaborating.

Responsibilities

• Architect and maintain scalable frontend applications.
• Build performant UI components.
• Collaborate with design and product teams.

Skills

Expert-level proficiency in React

TypeScript knowledge

Understanding of state management

Performance optimization skills

Experience with testing frameworks (Jest, Cypress, Playwright)

Proactive and ownership-driven mindset

Clear communication in English (C1+)

Tools

React

TypeScript

Modern frontend frameworks

Job description

Senior Frontend Engineer

$8k-$10k

A full-time role for a senior engineer.

It's your chance to take full ownership of frontend projects from design to delivery with minimal supervision!

About Ballerine

Ballerine is a high-growth, early-stage startup building an open-source platform for identity verification and risk management in the financial sector.

It's a fast-paced team preparing for Series A funding - and looking for a Senior Frontend Engineer to join our core team.

• Senior engineer
• Ready to thrive in startup environments
• English (C1+)
• Deliver independently while collaborating with a world-class team

Requirements

• 7+ years of commercial engineering experience (only truly senior-level candidates will be considered)
• Proven startup experience (corporate-only backgrounds will not be considered)
• Expert-level proficiency in React, TypeScript, modern frontend frameworks and architectures
• Strong understanding of state management, performance optimization, and scalable component-driven design
• Experience with testing frameworks (Jest, Cypress, Playwright)
• Comfort with open-source principles and contributions
• Clear, confident communication in English (minimum C1, no heavy accents)
• Ability to onboard quickly and deliver at startup pace
• Proactive, independent, and ownership-driven mindset

With Us

• Competitive monthly compensation
• Chance to join a core team pre-Series A, shaping the product and the company's direction
• Work on complex, high-scale challenges with cutting-edge tools (LLMs, AI, open-source)
• A culture where your voice matters - small team, high impact, no bureaucracy
• Opportunities for technical leadership and direct influence on strategy
• Fully remote role

Responsibilities

• Architect, develop, and maintain scalable frontend applications using React, TypeScript, and modern FE tooling
• Build reusable and performant UI components following best practices
• Ensure accessibility, cross-browser compatibility, and responsiveness across devices
• Collaborate closely with design and product teams to deliver pixel-perfect, user-centric features
• Optimize applications for maximum speed, scalability, and reliability
• Implement robust testing strategies (unit, integration, end-to-end)
• Stay ahead of industry trends, evaluating and adopting new technologies where relevant
• Contribute to open-source initiatives and foster a culture of clean, maintainable code.

Ready to collaborate closely with technical and non-technical stakeholders?

Join Ballerine and help shape the future of fintech identity verification!