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Recently postedFull timeOperations & Project Management

.NET Technical Lead / Team Lead M/F

Tessero LuxembourgLuxembourg🇱🇺Luxembourg

Why this role stands out

This role offers a fantastic opportunity to elevate your career by leading high-impact IT modernization projects within a collaborative Agile environment, all while enjoying a highly competitive daily rate. You will thrive in this position if you are a seasoned developer eager to mentor others and drive technical excellence, and the hybrid work model provides the perfect balance for your professional lifestyle. Apply today to take a pivotal leadership role and make a lasting impact on critical business systems.

Quick overview

SeniorityMid Senior
Employment typeFull Time
Work modeHybrid
LocationLuxembourg, Luxembourg
Stakeholder ManagementGitC#ConfluenceContinuous Improvement.NETJavaScriptTypeScriptJiraAgileCI/CD

Job description

Tessero is looking for a .NET Technical Lead / Development Team Lead for one of its clients based in Luxembourg.
  • Contract: Freelance / Consulting Assignment (6 months, renewable)
  • Compensation: Competitive daily rate based on experience
  • Location: Luxembourg
  • Languages: French and English
  • Experience: 8+ years in software development, including proven technical leadership experience
Context
  • Join a strategic IT transformation program focused on modernizing and refactoring a critical information system within the life insurance sector.
  • Play a key role in the evolution of business-critical applications that directly support operational activities.
  • Contribute to high-impact initiatives aimed at improving application quality, maintainability, security, and performance.
  • Work in a collaborative Agile environment where technical excellence, innovation, and continuous improvement are highly valued.
  • Gain visibility across IT, business, and management teams by acting as a trusted technical leader and key decision-maker.
Responsibilities
  • By mentoring and supporting developers on a daily basis, you will strengthen your leadership skills while driving team performance and engagement.
  • By facilitating Agile ceremonies, code reviews, and technical discussions, you will help foster a culture of collaboration, knowledge sharing, and engineering excellence.
  • By coordinating development activities with Product Owners and stakeholders, you will gain exposure to strategic projects with significant business impact.
  • By remaining actively involved in software development, you will stay close to technology while influencing key technical decisions and architectural choices.
  • By establishing and enforcing development standards and best practices, you will contribute directly to the quality, scalability, and long-term sustainability of the application landscape.
  • By overseeing automated testing, continuous integration processes, and technical documentation, you will help build a modern and efficient development ecosystem.
  • By translating business needs into technical solutions, you will deepen your functional expertise while delivering tangible value to stakeholders.
  • By leading refactoring and continuous improvement initiatives, you will play a central role in the modernization of the company's internal tools and systems.
Skills & Qualifications Education
  • Bachelor's or Master's degree in Computer Science, Software Engineering, or a related field.
Experience
  • Proven experience as a Technical Lead, Team Lead, or Lead Developer.
  • Strong background within the Luxembourg life insurance industry.
  • Demonstrated experience leading and coaching development teams.
  • Solid understanding of Agile delivery methodologies and application transformation projects.
Technical Skills
  • Strong expertise in C#.
  • Good command of JavaScript and TypeScript.
  • Strong understanding of modern software architecture principles.
  • Experience with Git, CI/CD, and DevSecOps practices.
  • Solid knowledge of Clean Code, SOLID, DRY, KISS, and YAGNI principles.
  • Hands-on experience with code reviews, automated testing, and legacy application refactoring.
  • Proficiency with tools such as Jira, GitLab, and Confluence.
Languages
  • Fluent French.
  • Professional English.
Soft Skills
  • Strong leadership and team-building abilities.
  • Excellent communication and stakeholder management skills.
  • Analytical mindset with strong problem-solving capabilities.
  • Well-organized, detail-oriented, and proactive.
  • Ability to bridge the gap between technical and business teams.
Why Join?

This opportunity is ideal for a Technical Lead looking to combine hands-on development, technical leadership, and strategic impact. You will play a pivotal role in a major IT transformation program, influence key technical decisions, and contribute to the growth of both the technology landscape and the development team while working in a dynamic and challenging environment.

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