About the job
About Theodo
Since 2009, Theodo has partnered with forward-thinking companies to design, build, and launch digital products using advanced technology and a Lean mindset. Theodo’s approach centers on three principles:
- Deep expertise in core technologies for product design and development
- Focus on delivering value at every project stage and decision
- Attracting and nurturing top digital talent through Lean practices
Over the past 15 years, Theodo has grown to more than 700 team members, most of whom are Software Engineers dedicated to technology and continuous improvement. The company is structured into specialized units by technology (such as Theodo Apps, Theodo Cloud, Theodo Data & AI) and by industry (including Fintech, Govtech, Healthtech, and Consumer Products Goods). By 2025, Theodo aims to reach €100M in revenue.
AI Modernization at Theodo
The AI Modernization practice stands as the Group’s flagship offering. This team drives Theodo’s ambition to become Europe’s leader in AI for software development. The mission: accelerate the migration of legacy systems to modern languages and frameworks, helping clients reduce business, cybersecurity, and compliance risks. Using a controlled approach to AI and a proven methodology, these projects are delivered three times faster than traditional methods.
Your Team
Join a tech community of over 350 Theodoers: software engineers, tech leads, engineering managers, and architects. This is a place to exchange ideas, learn, and grow every day.
At Theodo, tech teams form project groups tailored to each client’s needs. As a Lead Fullstack Engineer, work within a small team of 4 to 5 members, including Software Engineers, a Tech Lead, and a Product Manager. Collaboration with clients is close and ongoing, with regular discussions to share progress, deepen understanding of challenges, and adapt products to serve users effectively.
Software Engineering is evolving with AI. At Theodo, there is an opportunity to develop as an AI Native Tech Lead.

