Staff Fullstack Engineer (Fintech)

TL;DR

Staff Fullstack Engineer (Fintech): Building and scaling a financial platform for international payments in emerging markets with an accent on UI development, backend logic, and architectural decisions. Focus on implementing IT security, data protection best practices, and driving scalability and modularity of the codebase.

Location: Hybrid in London or Paris.

Company

Capi helps businesses in emerging markets pay their international suppliers simply, quickly, and fairly.

What you will do

• Contribute to the end-to-end product process from ideation to deployment.
• Build intuitive and performant web interfaces for business owners.
• Implement IT security and data protection best practices in a regulated environment.
• Proactively drive architectural decisions for scalability, observability, and modularity.
• Mentor junior engineers and contribute to their professional growth.
• Represent engineering in cross-functional discussions to translate business goals into technical plans.

Requirements

• A product mindset focused on customer, business, and long-term impact.
• Strong understanding of web development, frontend, and backend best practices, mainly with JavaScript technologies.
• Experience in a VC-backed or high-growth engineering team and building customer-facing products.
• Comfortable working in an early-stage startup environment with high pace and ambiguity.
• Excellent written and verbal communication skills.
• Must be based in London or Paris.

Nice to have

• Speak and write in French and English.
• Experience in Fintech, payments, wallets, or building ledgers.
• Expertise in security and data protection best practices in an FCA regulated business.

Culture & Benefits

• Backed by $18M+ from top-tier investors.
• Team of approximately 80 people across 10 countries.
• Opportunities to work closely with the founding team.
• Competitive salary, share options, and benefits.
• Commitment to diversity and inclusion.

Hiring process

• Screen interview with Tech Recruiter (30 mins).
• Technical challenge with a Principal Engineer (1 hr).
• Deep dive with the hiring manager (1 hr).
• Founder chat (30 mins).
• References and offer.