Tech Lead .NET / C# - Financial Services - Lille

About the company

Sopra Steria, a major player in Tech in Europe, with 51,000 employees in nearly 30 countries, is recognized for its consulting, services, and digital solutions activities. It helps its clients lead their digital transformation and achieve concrete and lasting benefits. The Group provides a global response to the competitiveness challenges of large companies and organizations, by combining deep knowledge of business sectors and technologies with a collaborative approach.

Sopra Steria places people at the heart of its actions and is committed to its clients to make the most of digital technology to build a positive future. In 2025, the Group achieved a turnover of 5.6 billion euros.

Your tasks

As a Tech Lead .NET / C#, you play a central role in projects: technical steering, coordination of developments, quality assurance, and team support, while remaining involved in technical choices.

Your role and missions As a Tech Lead .NET / C#, you are the technical referent for the project and intervene on high value-added missions:

• Coordination of development actions within the project
• Guaranteeing the design of solutions and challenging technical choices
• Guaranteeing code quality and compliance with development best practices
• Supporting the team in its skill development
• Validation of estimates for technical solutions, in line with the client's strategy
• Contribution to technological monitoring, innovation, and technical excellence efforts
• Providing your expertise during pre-sales phases and commercial actions, in support of business development

Technological environment: .

Requirements

• Back-end: C#, .NET 6 and +
• Front-end: Angular 12 and +
• API: SOAP / REST
• Dev & Quality: Git, CI/CD (depending on project context)
• Cloud & Run: Azure, Kubernetes
• Data: Oracle, PL/SQL
• Steering: Jira
• Agile Environment

• You have at least 7 years of experience in application development and have already held a role as a technical referent or Tech Lead.
• You master C#, .NET 6+ and Angular technologies as well as software development and design best practices.
• You are comfortable with the technical support of a team, code reviews, sharing best practices, and resolving complex issues.
• You move easily in Agile environments and ideally have experience with Cloud architectures and industrialization processes.
• Recognized for your analytical spirit, leadership, and sense of teamwork, you are proactive and actively contribute to the continuous improvement of projects.
• You have a professional level of English allowing you to communicate in an international context.

What we offer

• A teleworking agreement to work from home up to 2 days per week depending on your missions.
• An attractive benefits package: health insurance, CSE, meal vouchers, profit-sharing, holiday bonuses, and referral bonuses.
• Multiple career opportunities: more than 30 job families, as many gateways to imagine together.
• Several hundred training courses accessible autonomously with Sopra Steria Academy.
• The possibility to get involved with an association through our citizen engagement platform.
• The opportunity to join the Tech'Me UP collective (training, conferences, monitoring, and much more...).

Other

The world is how we shape it Job Description As part of a permanent contract (CDI) recruitment, you will join the Sopra Steria Financial Services teams in Lille and work on structuring projects for banking and financial clients.

An inclusive and committed employer, our company works every day to fight against all forms of discrimination and promote a respectful working environment. This is why, committed to diversity and inclusion, we encourage all applications and all profiles.