Senior .NET Developer / Tech Lead at Bonapolia | GlassEver Jobs

Senior .NET Developer / Tech Lead at Bonapolia | GlassEver Jobs

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Jobs / Senior .NET Developer / Tech Lead

Senior .NET Developer / Tech Lead

Estonia Oct 31, 2026
.NET-Developer Technical-Lead Backend-Engineer Software-Engineer Software-Architect

Job Description

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 - 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

    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!

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