Senior Data/.NET Engineer

YOUR CLIENT

Our client is a product company building an enterprise AI platform that unifies data from multiple business systems and turns it into AI-powered applications and workflows used in production by large international organizations.

YOUR ROLE

You will be embedded with end customers, getting to know their processes and data and turning real business problems into working software. It’s a hands-on engineering role that spans the full cycle: integrating data from enterprise systems, designing data models, building APIs and user interfaces, and developing LLM-powered features and agents. You will take projects from the first workshop all the way to production and work closely with the platform’s core engineering team.

YOUR TASKS

• Work with business and technical stakeholders to understand workflows and translate requirements into practical solutions.
• Model enterprise data as a graph: entities, relationships, identifiers.
• Build data integrations: connectors, ingestion from APIs and databases, data quality investigation and transformation.
• Develop backend services, APIs and user interfaces using C#/.NET and modern web technologies.
• Build production AI features with LLMs: intelligent search, information extraction, question answering, workflow automation.
• Scope work, make implementation decisions, demo progress and take solutions from prototype to production.
• Contribute reusable components and improvements back to the platform.

YOUR PROFILE

• 3+ years of commercial software development experience.
• Strong engineering skills: design, implementation, testing and debugging of maintainable, production-quality code.
• Experience with C#/.NET; ASP.NET Core and API development are a strong advantage.
• Understanding of graph data modeling (entities, relationships, identifiers); hands-on graph DB / graph query experience is a strong plus but can be learned on the project.
• Interest in AI agents, tool use and multi-step workflows.
• Familiarity with text processing, entity extraction, embeddings, semantic search or information retrieval is a plus.
• Version control (Git) and CI/CD as part of normal delivery.
• Ability to investigate unfamiliar systems and raw data and solve problems independently.
• Confidence working directly with customers and explaining technical decisions.

Nice to have:

• Front-end experience.
• Practical AI engineering experience or a strong foundation: LLM APIs, prompting, structured outputs, RAG.
• Speaking French.

What you will love about working here?

• We care about all our employees and want them to feel as comfortable as possible. That's why we offer them health insurance from the first days, regardless of the probationary period.
• The gift from the company - Christmas holidays from 25 December to 31 December.
• Сooperation with Superhumans center and Veteran HUB. Capgemini Engineering has supported the launch of psychological rehabilitation department of Superhumans. Our team also donnated over UAH 500 000 prosthetics for three Ukrainian defenders. Currently, we support psychological counseling provided by the Veteran Hub, and we have implemented a internal policy making the company friendly to military and veterans with the assistance of the Hub.