About the role
Project/Client:Fintech Location:Lithuania Start Date:ASAP Duration:12 months Language:English
Role Overview:
We’re looking for aSenior .NET Developer / Tech Leadto join our engineering team and build payment-focused backend solutions in a regulated fintech environment. This is a hands-on role combining software development with technical leadership. You’ll design and develop backend services, contribute to technical and architectural decisions, and help the team maintain high engineering standards.
Key Responsibilities:
* Design and develop backend services usingC# / modern .NET
* Contribute totechnical designandarchitectural decisions
* Build integrations withREST APIs, third-party platforms, messaging, and file-based interfaces
* Ensure code quality throughcode reviewsand engineering best practices
* Mentor developers and leadtechnical discussions
* Work withSQL, relational databases,CI/CD, andDocker
* Buildsecure, reliable, and scalablesoftware solutions
* Collaborate with product, compliance, QA, and other engineering teams
Must-Have Requirements:
* 7+ yearsof hands-onC# / .NETexperience
* Strongbackend developmentexperience
* Experience withREST APIs, integrations, anddistributed systems
* StrongSQLand relational database experience
* Experience withDockerandCI/CD
* Understanding ofsecure and reliable software development
* Experience as aSenior Engineer,Tech Lead, or similar
* Ability to taketechnical ownershipand guide other developers
Nice to Have:
* Experience inpayments,banking,fintech, orfinancial services
* Experience in aregulated / compliance-driven environment
* Knowledge ofISO 20022 / SEPA
* Understanding ofclearing,settlement, orpayment processing
* Experience withAzureorAWS
* 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