Principal Full Stack Developer (TypeScript)

Capi Money

Capi is building the financial infrastructure for emerging markets trade. Backed by $18M+ from top-tier investors like Creandum, Y Combinator, General Catalyst, and angels from Revolut, Checkout, Stripe, and Remitly, we’re building the financial infrastructure that emerging markets deserve. Our mission is to grow GDP in emerging markets by making the global financial system fairer and more accessible. We’re tackling global trade, making it easier for importers to pay their international suppliers. Our platform enables businesses to expand rapidly, create jobs, and be engines of prosperity for their countries. Our team is made up of approx 100 people across 10 countries; we are a group of a highly-ambitious, get-it-done people, who like to work hard on something that has a tangible impact in the world. And we’re looking for more people to join our team! Take a look through Capi’s mission & values. ROLE OVERVIEW You'll join a small, high-performing team of engineers and product leaders shaping how we scale our platform and our impact. From your first day, you will have the opportunity to work closely with the founding team based across London & Paris to shape the product vision and all parts of our technical architecture. As we scale our products and deepen our presence across emerging markets, this is a role that builds technology to solve customer problems. To do that, you must have empathy and curiosity to get to the root cause of the issue and the creativity to build a solution that balances impact, effort, and delight. KEY RESPONSIBILITIES Leadership Excellence * Lead by technical example — your influence comes from the quality of your work, your judgment and your ability to bring others along with you, not from authority. * Own technical direction within your team and workstream, collaborating closely with principal engineers and the Head of Engineering to align with broader architectural strategy. * Mentor senior engineers through pairing, code reviews and design discussions — raising the technical floor of the people around you. * Champion engineering best practices across the team, introducing standards and patterns that improve consistency, reliability and developer experience. * Act as a subject matter expert in your core technical domain, and be the person others turn to when the problem is hard. Delivery Excellence * Lead the end-to-end delivery of complex, multi-stakeholder projects — from scoping and design through to deployment, feedback and iteration. * Translate ambiguous problem spaces into clear technical plans, breaking down large initiatives into well-defined milestones that the team can execute against. * Manage delivery dependencies across teams and communicate progress clearly to both technical and non-technical stakeholders. * Drive a culture of outcome-oriented delivery within your workstream — focused on impact shipped, not activity completed. * Proactively identify and remove blockers before they slow the team down. Operational Excellence * Take ownership of the reliability and observability of systems within your domain — ensuring they are monitored, well-understood and resilient to failure. * Handle production incidents with confidence, leading postmortems that result in genuine process improvements rather than just documentation. * Set the standard for what good operational practice looks like within your team — monitoring, alerting, runbooks and on-call hygiene. * Contribute to company-wide reliability initiatives led by principal engineers and the Head of Engineering. Technical Excellence * Make and defend strong architectural decisions within your workstream, balancing pragmatism with long-term technical health. * Write production-quality code consistently — this is a fully IC role and hands-on technical contribution is expected at all times. * Drive scalability, modularity and performance improvements in the areas of the codebase you own. * Champion code quality through rigorous testing, thoughtful documentation and constructive code reviews that develop the engineers around you. * Proactively identify technical debt and lead initiatives to address it before it compounds. Culture Communicate internally and externally about new features, be it collecting feedback pre-implementation or explaining them on launch. REQUIREMENTS Our tech stack: Typescript, React, NextJS, NodeJS, Express, PostgreSQL * A product mindset is core to how we build - everyone at Capi is encouraged to think about the customer, the business, and the long-term impact of what we ship. * A strong understanding of web development, frontend and backend best practices. While mainly working with JavaScript technologies. * Experience in a VC-backed or high-growth engineering team and building products used by customers. * You are comfortable working in an early-stage startup environment with high pace, rapid growth, involvement in the entire product development process, and a high degree of ambiguity. * Excellent written and verbal communication skills for expressing ideas, designs, and potential solutions with both technical and non-technical team members and customers. * You care about our mission and solving the problems faced by African businesses. * Based in London or Paris. Bonus points if you: * Speak and write in French & English * Experience in Fintech, payments, wallets or building ledgers * Expertise in security and data protection best practices needed in a FCA regulated business Some projects the team has been working on: * Automated payouts and AI invoice approval * Onboarding + payment automation with Swift network and banking partners across the world * WhatsApp bot that creates quotes for customers based on their responses * Self-serve onboarding flow that collects company information and KYC documents from customers * Asynchronous workers that OCR invoices * Internal tooling to manage and process millions of dollars of transactions WHAT TO EXPECT WHEN INTERVIEWING WITH CAPI? Our interview process includes: 1. Screen interview with our Tech Recruiter Gracie (30 mins) - Learn about the Capi story and mission. Whilst ensuring we are aligned as an exciting opportunity for what you're looking for 2. Technical challenge with one of our Principal Engineers (1 hr) - Demonstrate your abilities in a whiteboard-style interview with one of our senior team members. We like to keep this as natural as possible, as if you were joining us tomorrow. This interview is to assess your skills, interests, and potential to see the impact you could make. While also ensuring Capi can support your growth 3. Deep dive (1 hr) - Meet the hiring manager and explore your relevant experience and our upcoming projects 4. Founder chat (30 mins) - Meet the founders to learn about Capi's growth plans, mission, and revenue targets. This is also your opportunity to ask any final questions to make sure our journey is right for you. 5. References 6. Offer! ADDITIONAL INFORMATION This is a full-time position with a competitive salary, share options, and benefits. We would be looking to hire for this role by June 2026, but are happy to align with notice periods as required. Take a look at what it is like to work at Capi Money across all of our international offices. Capi is an equal opportunity employer and welcomes candidates from diverse backgrounds. We’re all about building a diverse, inclusive team at Capi. Whoever you are, we’d love to hear from you. If there’s anything you need to make the interview process easier—whether it’s accessibility support, a different format, or just a heads-up about what to expect—just let us know, we’re happy to help. We've won some cool awards recently too! Check them out: * Startups UK Top 100 (No. 24) * Viva Technology Top 100 * Welcome to the Jungle's Fintech's Finest Top 50

Capi Money

Capi is building the financial infrastructure for emerging markets trade. Backed by $18M+ from top-tier investors like Creandum, Y Combinator, General Catalyst, and angels from Revolut, Checkout, Stripe, and Remitly, we’re building the financial infrastructure that emerging markets deserve. Our mission is to grow GDP in emerging markets by making the global financial system fairer and more accessible. We’re tackling global trade, making it easier for importers to pay their international suppliers. Our platform enables businesses to expand rapidly, create jobs, and be engines of prosperity for their countries. Our team is made up of approx 100 people across 10 countries; we are a group of a highly-ambitious, get-it-done people, who like to work hard on something that has a tangible impact in the world. And we’re looking for more people to join our team! Take a look through Capi’s mission & values. ROLE OVERVIEW You'll join a small, high-performing team of engineers and product leaders shaping how we scale our platform and our impact. From your first day, you will have the opportunity to work closely with the founding team based across London & Paris to shape the product vision and all parts of our technical architecture. As we scale our products and deepen our presence across emerging markets, this is a role that builds technology to solve customer problems. To do that, you must have empathy and curiosity to get to the root cause of the issue and the creativity to build a solution that balances impact, effort, and delight. KEY RESPONSIBILITIES Leadership Excellence * Lead by technical example — your influence comes from the quality of your work, your judgment and your ability to bring others along with you, not from authority. * Own technical direction within your team and workstream, collaborating closely with principal engineers and the Head of Engineering to align with broader architectural strategy. * Mentor senior engineers through pairing, code reviews and design discussions — raising the technical floor of the people around you. * Champion engineering best practices across the team, introducing standards and patterns that improve consistency, reliability and developer experience. * Act as a subject matter expert in your core technical domain, and be the person others turn to when the problem is hard. Delivery Excellence * Lead the end-to-end delivery of complex, multi-stakeholder projects — from scoping and design through to deployment, feedback and iteration. * Translate ambiguous problem spaces into clear technical plans, breaking down large initiatives into well-defined milestones that the team can execute against. * Manage delivery dependencies across teams and communicate progress clearly to both technical and non-technical stakeholders. * Drive a culture of outcome-oriented delivery within your workstream — focused on impact shipped, not activity completed. * Proactively identify and remove blockers before they slow the team down. Operational Excellence * Take ownership of the reliability and observability of systems within your domain — ensuring they are monitored, well-understood and resilient to failure. * Handle production incidents with confidence, leading postmortems that result in genuine process improvements rather than just documentation. * Set the standard for what good operational practice looks like within your team — monitoring, alerting, runbooks and on-call hygiene. * Contribute to company-wide reliability initiatives led by principal engineers and the Head of Engineering. Technical Excellence * Make and defend strong architectural decisions within your workstream, balancing pragmatism with long-term technical health. * Write production-quality code consistently — this is a fully IC role and hands-on technical contribution is expected at all times. * Drive scalability, modularity and performance improvements in the areas of the codebase you own. * Champion code quality through rigorous testing, thoughtful documentation and constructive code reviews that develop the engineers around you. * Proactively identify technical debt and lead initiatives to address it before it compounds. Culture Communicate internally and externally about new features, be it collecting feedback pre-implementation or explaining them on launch. REQUIREMENTS Our tech stack: Typescript, React, NextJS, NodeJS, Express, PostgreSQL * A product mindset is core to how we build - everyone at Capi is encouraged to think about the customer, the business, and the long-term impact of what we ship. * A strong understanding of web development, frontend and backend best practices. While mainly working with JavaScript technologies. * Experience in a VC-backed or high-growth engineering team and building products used by customers. * You are comfortable working in an early-stage startup environment with high pace, rapid growth, involvement in the entire product development process, and a high degree of ambiguity. * Excellent written and verbal communication skills for expressing ideas, designs, and potential solutions with both technical and non-technical team members and customers. * You care about our mission and solving the problems faced by African businesses. * Based in London or Paris. Bonus points if you: * Speak and write in French & English * Experience in Fintech, payments, wallets or building ledgers * Expertise in security and data protection best practices needed in a FCA regulated business Some projects the team has been working on: * Automated payouts and AI invoice approval * Onboarding + payment automation with Swift network and banking partners across the world * WhatsApp bot that creates quotes for customers based on their responses * Self-serve onboarding flow that collects company information and KYC documents from customers * Asynchronous workers that OCR invoices * Internal tooling to manage and process millions of dollars of transactions WHAT TO EXPECT WHEN INTERVIEWING WITH CAPI? Our interview process includes: 1. Screen interview with our Tech Recruiter Gracie (30 mins) - Learn about the Capi story and mission. Whilst ensuring we are aligned as an exciting opportunity for what you're looking for 2. Technical challenge with one of our Principal Engineers (1 hr) - Demonstrate your abilities in a whiteboard-style interview with one of our senior team members. We like to keep this as natural as possible, as if you were joining us tomorrow. This interview is to assess your skills, interests, and potential to see the impact you could make. While also ensuring Capi can support your growth 3. Deep dive (1 hr) - Meet the hiring manager and explore your relevant experience and our upcoming projects 4. Founder chat (30 mins) - Meet the founders to learn about Capi's growth plans, mission, and revenue targets. This is also your opportunity to ask any final questions to make sure our journey is right for you. 5. References 6. Offer! ADDITIONAL INFORMATION This is a full-time position with a competitive salary, share options, and benefits. We would be looking to hire for this role by June 2026, but are happy to align with notice periods as required. Take a look at what it is like to work at Capi Money across all of our international offices. Capi is an equal opportunity employer and welcomes candidates from diverse backgrounds. We’re all about building a diverse, inclusive team at Capi. Whoever you are, we’d love to hear from you. If there’s anything you need to make the interview process easier—whether it’s accessibility support, a different format, or just a heads-up about what to expect—just let us know, we’re happy to help. We've won some cool awards recently too! Check them out: * Startups UK Top 100 (No. 24) * Viva Technology Top 100 * Welcome to the Jungle's Fintech's Finest Top 50

Allica Bank

About Allica Bank Allica is the UK’s fastest growing company - and the fastest-growing financial technology (Fintech) firm ever. Our purpose is to help established SMEs, one of the last major underserved opportunities in Fintech. Established SMEs are the backbone of local communities - representing over a third of our economy - yet have been largely neglected both by traditional high street banks and modern fintech providers. Technology sits at the centre of Allica. We design and build the platforms that power the bank, working closely with every part of the business to deliver real impact for customers. Our teams move quickly, focus on outcomes, and take ownership from concept through to delivery. We solve complex problems, modernise processes, and enable the business to scale with confidence. What makes us different is the level of influence and autonomy engineers have. We work without the weight of legacy systems, which means we can focus on building for the future. Everyone contributes ideas and helps shape how we operate, and roles evolve as the organisation grows. This is a place for people who want to have a tangible impact and do their best work in a modern, collaborative environment. Role Description The Full Stack Engineer contributes to the design and delivery of products within a squad, helping to build secure, reliable, and accessible software while maintaining high engineering standards and a good developer experience. You will use your skills in Spring Boot microservices (Kotlin/Java) and modern web technologies (React/TypeScript) to deliver features across the stack. Our backend services run as containerised applications on Azure Container Apps, and our web applications are deployed via Azure Static Web Apps; you will help ensure the services and applications you work on are production-ready and make effective use of these platforms. You will contribute to good engineering practices in observability, CI/CD, security, performance, and accessibility, helping systems meet the standards expected of a UK bank. You will contribute to Architecture Decision Records (ADRs) and follow organisation-wide patterns and standards. You are hands-on and collaborative: you help design features, write code, review changes, and work closely with engineers, Product, and Design to deliver valuable outcomes. You use approved GenAItools such as GitHub Copilot, Codex or Claude Code responsibly to improve productivity and quality, while validating outputs carefully. Success in this role is measured by the consistent delivery of high-quality features, contribution to reliable and maintainable systems, improvements to the codebase and operational health of services, and your growth in technical capability and ownership. Principal Accountabilities: Contribute to the end-to-end design and delivery of features across the full stack using: * Backend: Kotlin/Java Spring Boot microservices, containerised and deployed on Azure Container * Apps, exposing REST/OpenAPI APIs and integrating with other services and data stores. * Frontend: React/TypeScript, shared design system components, and agreed architectural patterns, deployed on Azure Static Web Apps. * Contribute to technical design discussions and help produce clear ADRs for significant decisions, documenting context, options, trade-offs, and outcomes in line with organisation standards. * Support the squad’s services in production by contributing to SLOs and operational metrics, monitoring systems, responding to incidents, and helping to reduce recurring issues and improve reliability. Apply secure and compliant engineering practices: * Follow secure coding standards and contribute to threat modelling activities. * Ensure logging, audit trails, and data handling meet regulatory and privacy requirements. * Ensure accessibility standards are met in user-facing features. * Help strengthen observability and operational excellence within the squad by contributing to metrics, tracing, logs, dashboards, runbooks, and alerts, and using them effectively in day-to-day engineering work. * Contribute to improvements in developer experience, including CI/CD pipelines, test strategy, local development workflows, and release practices, in line with wider engineering standards and cloud deployment patterns. Use AI-assisted engineering responsibly: * Use approved tools like GitHub Copilot, Codex or Claude Code to improve speed, quality, and consistency. * Validate and refine AI-generated code to ensure correctness, maintainability, and compliance. * Share feedback and effective practices with the team. * Collaborate closely with Product Managers and Designers to understand requirements, shape practical solutions, and deliver work aligned to product goals and timelines. * Maintain high standards of code quality, testing, documentation, and maintainability across the squad’s codebase, while helping to reduce technical debt. * Support other engineers through pairing, code review, and knowledge sharing, contributing positively to the growth and effectiveness of the squad. Personal Attributes & Experience * Experience building and operating Spring Boot microservices in Kotlin or Java, including REST APIs, integrations, and containerised deployments on a major cloud platform (Azure preferred; AWS or Google Cloud also relevant). * Good knowledge of React and TypeScript, with practical experience building accessible, maintainable, and performant user interfaces. * Ability to design and deliver well-structured features within an existing architecture, with an understanding of trade-offs around scalability, maintainability, and delivery pace. * Good understanding of distributed systems fundamentals appropriate to microservices, such as resilience, latency, and failure handling. * Good understanding of secure coding practices, privacy considerations, and security expectations for production systems. * Experience with testing, CI/CD pipelines, and observability tooling; familiarity with Azure DevOps Pipelines and Azure deployment services is beneficial. * Ability to improve code quality through refactoring, clearer abstractions, and maintaining sensible boundaries between modules and services. * Experience collaborating through code review, pairing, and technical discussions to help improve team outcomes. * Experience using GenAI tools such as GitHub Copilot, Codex or Claude Code to improve productivity and code quality, with a clear understanding of their limitations and the need for review and validation. * Strong communication and collaboration skills, with the ability to work effectively with engineers, Product Design & other stakeholders. Working at Allica Bank At Allica Bank we want to ensure our employees have the right tools and environment in which to succeed in their role and in support of our customers. Our employees are at the heart of everything we do, so our benefits are designed with you in mind: * Full onboarding support and continued development opportunities * Options for flexible working * Regular social activities * Pension contributions * Discretionary bonus scheme * Private health cover * Life assurance * Family friendly policies including enhanced Maternity & Paternity leave Don’t tick every box? Don’t worry if you don’t have all the skills or requirements listed on the job description. If you think you’ll be a good fit, we’d still love to hear from you! Flexible working We know the ‘9-to-5’ isn’t right for everyone. That’s why Allica Bank is fully committed to flexible and hybrid working. Please let us know what is best for you and, if we can, we will do our best to accommodate. Diversity We’re a diverse bunch here at Allica, with all kinds of experiences, backgrounds and lifestyles. Our openness and differences make us stronger, and we want everybody to feel comfortable bringing as much of themselves to work with them as they like.