.NET Tech lead

Net

.NET Tech lead

Net
-, Warszawa +4 Locations

Baltic Amadeus

Full-time
B2B
Manager / C-level
Remote

Job description

Project/Client: Fintech

Start Date: ASAP

Duration: 12 months

Seniority: Tech Lead / Senior

Language: English


Role Overview: We’re hiring a hands-on .NET Tech Lead to drive engineering delivery for new payment-focused initiatives within a regulated fintech setting. This role blends technical leadership with active development. You’ll shape modern, secure, and scalable backend platforms used across European markets.


Key Responsibilities:

  • Lead the technical design and delivery of backend systems using C# / .NET

  • Contribute directly to hands-on development while setting architectural direction

  • Build and maintain services supporting real-time and batch processing flows

  • Oversee integrations with external APIs, third-party platforms, and file-based interfaces

  • Ensure strong code quality through reviews, standards, and mentorship

  • Align architecture with security, compliance, resilience, and audit requirements

  • Work closely with product, compliance, and cross-functional engineering teams

  • Drive CI/CD practices, testing strategy, and technical documentation


Must-Have Requirements:

  • 7+ years of hands-on experience with C# / .NET (Core / 6 / 7 / 8)

  • Experience acting as a Tech Lead or Senior Engineer on complex backend systems

  • Strong backend integration experience (REST, SOAP, SFTP, messaging, etc.)

  • Solid understanding of distributed systems, reliability, and secure coding practices

  • Strong database experience (design, performance optimization, and SQL — e.g., SQL Server or similar RDBMS)

  • Experience working in regulated or compliance-driven environments

  • Familiarity with Docker and CI/CD pipelines

  • Clear communication skills and ability to lead technical discussions


Nice to Have:

  • Exposure to payment systems, banking integrations, or financial services

  • Familiarity with ISO 20022, SEPA, or financial messaging standards

  • Understanding of clearing, settlement, or financial transaction lifecycles

  • Experience with core banking platforms or digital wallet solutions

  • Experience with cloud-native architectures (Azure or AWS)

Tech stack

    English

    C1

    .NET C#

    master

    CI/CD

    master

    REST

    master

    SQL

    master

    ASP.NET Core

    master

Office location

Published: 18.02.2026

.NET Tech lead

Summary of the offer

.NET Tech lead

-, Warszawa
Baltic Amadeus
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