Senior .NET Developer (Tech Lead responsibilities) with German, TSCM-43100, TSCM-43101

Eleks

Remote (Poland) Remote permanent

Posted: January 13, 2026

Quick Summary

We are seeking a Senior/Lead .NET Developer with expertise in building scalable web applications on Microsoft Azure, with a strong focus on .NET/ASP.NET Core and Azure services such as Azure Functions, Azure API Management, Azure SQL Database, and Redis. The ideal candidate will have hands-on experience in developing sustainable mobility and energy distribution solutions for districts, with a strong emphasis on digitalization. The successful candidate will be responsible for leading the development of high-quality .NET applications, with a focus on scalability, reliability, and performance.

Required Skills

Job Description

ELEKS Software Engineering and Development Office is looking for a Senior/Lead .NET Developer in Europe.

About Project
Our client is a German consulting and project company focused on developing sustainable mobility and energy distribution solutions for districts, with a strong emphasis on digitalization.

REQUIREMENTS:
• Strong experience with C# and .NET/ASP.NET Core
• Hands-on experience building web applications on Microsoft Azure
• Practical experience with Azure services such as: Azure Functions, Azure API Management, Azure SQL Database, Redis
• Solid understanding of ASP.NET Core web application architecture
• Working knowledge of JavaScript and React (backend-first profile)
• Experience working with authentication and authorization using Microsoft Entra (Azure AD) and OAuth 2.0
• Willingness to work with legacy systems based on .NET Framework 4.8 (limited and pre-agreed scope)
• Hands-on Tech Lead experience
• Comfortable taking technical ownership and making day-to-day technical decisions
• Strong problem-solving and communication skills
• German language level B2 or higher, used in daily meetings and customer communication
• Willingness to travel to Germany approx. 3-5 working days per month
• Based in Europe or able to travel within Europe

NICE TO HAVE:
• Experience with Office Add-ins on .NET Framework 4.8
• Deeper experience with Azure architecture and cloud design
• Experience working on POCs or early-stage projects
• Experience in consulting or customer-facing technical roles
• Experience working with newly formed or growing teams
• Familiarity with React Flow or similar UI libraries

RESPONSIBILITIES:
• Design and develop ASP.NET Core applications on Microsoft Azure, ensuring performance, reliability, and maintainability
• Act as a hands-on Tech Lead, providing technical guidance and ownership of backend and cloud-related components
• Collaborate with an Architect and Project Manager on solution design, planning, and delivery
• Review code, ensure high quality standards, and propose improvements and refactoring
• Oversee frontend work (React) at a coordination and review level
• Work with legacy .NET Framework 4.8 components when required
• Participate in technical discussions with the customer in German
• Support POC and early project phases and mentor less experienced developers

WHAT YOU WILL GET WITH ELEKS:
• Close cooperation with a customer
• Challenging tasks
• Competence development
• Ability to influence project technologies
• Team of professionals
• Dynamic environment with low level of bureaucracy

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