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.