Mirrai Careers

(Senior) Full-Stack Engineer | Frontend-leaning | Platform Team | Remote Portugal

bunch

Spain Remote Full-time Posted 2d ago
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bunch is building the backbone of private markets. We are enabling next-gen fund operations with one integrated system that combines secure data infrastructure, AI-powered workflows and expert fund services. If you value ownership, growth through real responsibility, and working with a thoughtful, ambitious team, this role might be for you. YOUR ROLE You’ll join our Platform team as a Full Stack Engineer with a frontend focus, building the foundational product experiences and services that power bunch. We’re looking for someone who sees product development as a craft - a blend of technical excellence, user-centered thinking, and cross-functional collaboration. Whether you’re shaping frontend architecture, contributing to backend services, maintaining our Design System, or implementing features end to end, your work will have a direct impact on thousands of users managing billions in assets. We offer you freedom and ownership to build the right solutions and influence the product roadmap. TOP RESPONSIBILITIES * Build robust, scalable, and well-tested full-stack product features, with a strong focus on frontend quality, using modern frameworks and our in-house Design System * Collaborate with PMs, Designers, QAs, and Engineers in the Platform Core team to ship high-quality features quickly * Contribute to and evolve our frontend architecture, backend services, tooling, and design system * Ensure a great developer experience and continuously improve performance, reliability, and maintainability across the stack * Write meaningful unit and E2E tests * Actively shape product solutions by participating in discovery, feedback rounds, and design critiques If you're applying as a Senior: * Take ownership across the stack, with particular depth in the frontend domain, and influence platform-wide decisions * Drive alignment between design and development, and collaborate on challenging UX cases * Own and evolve our in-house Design System alongside the design team * Guide the team in architecture and performance decisions * Mentor and support other engineers ABOUT YOU To thrive in our Platform Core team, you combine a love for building excellent UIs with the ability to work confidently across the stack and a pragmatic, product-first mindset. You're a strong communicator, a team player, and someone who thrives in a growing, fast-paced environment where asking "why" is encouraged. You... * Have 5+ years (Senior) of experience building product applications across the stack, with clear frontend depth * Are fluent in TypeScript, comfortable with modern frontend frameworks, and able to contribute to Node.js backend services * Have experience working with Design Systems * for Senior: also experience building or maintaining custom ones * Are familiar with unit and E2E testing (Vitest, Playwright, or equivalents) * Understand UI/UX principles and care about building elegant, accessible, and usable interfaces * Can operate in ambiguity and turn loosely defined ideas into working software * Have experience in a startup or scaleup environment Nice to have: * Previous exposure to fintech or highly regulated domains * Experience with zod (or any other form validation tools) * Worked with data visualisations (e.g., tables, charts) OUR TECH STACK * Frontend: Svelte + SvelteKit but moving towards React + TanStack, TypeScript, MeltUI (headless components) but moving towards Shadcn, Felte + zod * Testing: Vitest (unit), Playwright (E2E) * Design System: Custom-built (MeltUI) * Backend: Node.js, NestJS, MySQL, Sequelize * Infrastructure: Kubernetes (K8S) on top of AWS WORKPLACE & BENEFITS * Competitive salary plus equity * Customizable benefits package (wellbeing, sport, mobility, food, and more) * 28 days of vacation, plus 2 company days and local public holidays * Remote Setup with trip to Berlin (on average on a quarterly basis) * A great tech and work setup * Work with a diverse team of 130+ bunchies from 40+ countries, with leaders who are best-in-class in their domains INTERVIEW PROCESS * First interview with the People team (30 min): get acquainted with bunch and to understand if what we’re offering is what you’re searching for * Hiring Manager Interview (60 min): this conversation with an Engineering Manager will cover product-focused culture and values, including collaboration, ownership, self-awareness, and quality standards. * Technical Interview (60 min): this interview in the form of a technical conversation with two engineers will focus on collaborative problem-solving, starting with open-ended questions and progressing to more specific challenges or short algorithm tasks. * Final Round: Meet our VP of Engineering (45 min): learn about ways of working, vision for bunch, and team culture. About bunch bunch is building the operating infrastructure for the next generation of private markets. We combine AI-powered automation with deep regulatory expertise to replace fragmented spreadsheets and manual processes with one integrated platform across the fund lifecycle, purpose-built for private markets heading toward $32 trillion in Assets Under Management. We've 4x our ARR in 2025, crossed 150 fund managers and 12,000 LPs on the platform, and just closed our $35M Series B in May 2026. We're looking for ambitious people who want real ownership of hard problems, and who care about building infrastructure that actually matters to the people using it. ____ At bunch, we're committed to an inclusive environment where diversity is valued and celebrated. We provide equal opportunities to all qualified applicants. We process personal data in line with applicable laws (including GDPR). See our Privacy Policy for details on your rights and how to reach us.

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