About the role
Project/Client:Banking Location: Baltic states + Poland Seniority:Senior / Lead Language:English
Role Overview: As aSenior Frontend Engineer, you will play a key role in building a modernReact-basedmicro-frontend architectureforbankingsystems. You will design and implement scalable frontend modules, develop high-quality user interfaces forBack Officeapplications, and ensure performance, security, and maintainability across the platform. This is a hands-on role combining technical leadership and active development, suited for an engineer experienced inReact,TypeScript, and complex enterprise environments, working with backend integrations viaREST APIsandGraphQL.
Key Responsibilities:
* Lead and mentor a team ofReactdevelopers, providing technical guidance and conducting code reviews
* Design and implement scalablemicro-frontend architectureusing modern frontend tooling
* Develop high-quality frontend solutions usingReact,TypeScript, and state management (Redux,Zustand,Context API)
* Build and maintain reusable UI components, shared libraries, and design systems
* Collaborate with backend teams on integrations viaREST APIsandGraphQL
* Ensure best practices in performance, security, and accessibility
* Contribute toCI/CD, automated testing (Vitest,React Testing Library,Playwright), and code quality improvements
* Utilize modern development workflows, includingAI-assisted tools(e.g.,Copilot,Bmad workflow)
Must-Have Requirements:
* 5+ years of experience in frontend development with strong expertise inReact
* Strong proficiency inTypeScriptand modernJavaScript (ES6+)
* Hands-on experience withmicro-frontend architecture
* Experience with state management solutions (Redux,Zustand,Context API)
* Experience usingAI-assisted development tools(e.g.,Copilot)
* Solid understanding ofCSS,SASS, and responsive design principles
* Experience with testing frameworks such asVitest,React Testing Library, andPlaywright
* Familiarity withCI/CD,Git, and Agile development practices
* Strong understanding ofREST APIs,GraphQL, and frontend-backend integration
* Experience mentoring developers and leading technical decisions
Nice to Have:
* Experience inbankingorenterprise environments
* Knowledge of backend technologies such asJava,Spring Boot,Spring Security
* Familiarity withevent-driven architectures(e.g.,Kafka)
* What we offer * Model: B2B contract with Bonapolia - one contract, one monthly invoice * Rate: negotiated per candidate seniority and client budget * Payment: monthly invoice, paid on the same schedule the client pays us (usually 30 days) * Contract written under your country's law * We handle the client-side paperwork: MSA, NDA, invoicing 🏢 About Bonapolia Bonapolia is a family-owned IT staff augmentation team based in Lisbon. We build engineering teams for product companies and IT consultancies across Europe and the US. More at 📩 Ready to Join? We look forward to receiving your application and welcoming you to our team!
Originally posted on Himalayas