Senior Python/ GenAI Developers with German (m/f/d)

Position Description:

We’re establishing a brand-new technology and innovation hub in Sofia – and you can be part of it from day one. Here, you won’t just be shaping our services for German clients; you’ll also help us build a strong presence in the Bulgarian market. You’ll collaborate closely with our teams in Germany, bring in your ideas, and influence the tools, processes, and culture of our new Sofia location from the ground up. In short: We’re blending the energy of a fresh start with the reliability of a global player. If you’re excited about building something new both locally and internationally, this is the place to make your mark. Apply now and be part of our success story in Sofia! #BePartofourStory Let‘s #GrowTogetherNow

Your future duties and responsibilities:

We are looking for two Senior Python Developers to join two innovative GenAI projects. Both roles focus on building and scaling production-ready AI applications using Python, LangChain and FastAPI, with a high degree of technical ownership and independence.

One profile will focus on agentic chat applications, including advanced capabilities such as Canvas Mode, Word export and Deep Research Agents. The second profile will focus on Document AI, Vision-Language Models (VLMs), OCR and Computer Vision, extending an existing solution with new components and capabilities.

For both positions, German language skills at minimum B2 level are required

• Design, develop and scale Python-based GenAI applications, including APIs and job-queuing mechanisms

• Independently implement software according to technical specifications, architectural models and development standards

• Develop and integrate new AI capabilities while continuously improving existing solutions

• Create technical documentation and perform and document unit testing

• Support integration, load, performance and user acceptance testing and resolve identified defects

• Work closely with project managers, developers, testers, IT specialists, business analysts and other stakeholders

• Provide technical guidance and knowledge transfer while taking a high degree of ownership for your area

Required qualifications to be successful in this role:

For both profiles:

• Senior-level hands-on experience in Python development

• Strong practical expertise with LangChain and FastAPI

• Experience developing and scaling production applications, including API design and job queuing

• Solid understanding of software architecture, testing and modern software development practices

• Experience with development methodologies and concepts such as Scrum and Domain-Driven Design (DDD).

• Knowledge of Object-Oriented Analysis and Design (OOAD) and UML

• German at B2 level or higher

For the Agentic AI profile:

• Strong experience with Vue.js

• Experience with AG-UI

• Hands-on experience developing agentic chat / AI applications

• Experience implementing advanced GenAI features such as Canvas Mode, document/Word export or similar interactive capabilities

For the Document AI profile:

• Hands-on experience with Vision-Language Models (VLMs) and GenAI application testing

• Strong knowledge of OCR technologies and Computer Vision

• Experience with Document AI / Document Intelligence solutions and models or services such as GPT, Kimi or comparable technologies

• Knowledge of Kubernetes and/or OpenShift

• Experience extending existing AI solutions as well as developing new components from scratch

#LI-II1

What We Offer:

• Team Culture: You’ll find colleagues here who make collaboration enjoyable. We interact openly, use first names across all levels, and don’t think in hierarchies or silos

• Contract & Working Time: Permanent, full-time contract with a standard 8-hour workday

• Flexible Work Setup: Enjoy the best of both worlds with our hybrid work model – combining office presence in Sofia with remote work from home

• Working Hours: Flexible working hours tailored to project needs and client requirements

• Leave Policy: 25 days of paid vacation + 1 day for your Birthday

• Premium supplementary health insurance package: Including coverage for prescription glasses, reimbursement of medical expenses, and dental care

• Volunteer Opportunities: Make a positive impact with 8 hours of paid leave for voluntary work

• Career Development: Benefit from clear career progression paths and opportunities to grow within the company

• Continuous Learning: Access our internal learning platform, CGI Academia, to shape your skills based on your interests. Learn up to 9 languages via goFLUENT

• Referral Rewards: Extend your network – refer friends and earn bonuses through our rewarded referral program

• Health & Wellbeing: Access our Health and Wellbeing Portal for resources that support your physical and mental health

• Multisport Benefit: Аvailable at a preferential price for access to various sports and wellness facilities

• Office Environment: Work in a state-of-the-art co-working space in Sofia, with complimentary coffee, tea, and water to keep you refreshed throughout the day

What you can expect from us:

Together, as owners, let’s turn meaningful insights into action.

Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you’ll reach your full potential because…

You are invited to be an owner from day 1 as we work together to bring our Dream to life. That’s why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company’s strategy and direction.

Your work creates value. You’ll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.

You’ll shape your career by joining a company built to grow and last. You’ll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

That same commitment to fairness extends to how we use technology. To support our recruitment team, AI tools may be used to help assess applications though they never replace human judgement. All hiring decisions remain entirely in the hands of our recruitment professionals.

Come join our team—one of the largest IT and business consulting services firms in the world.