AI SERVICES – Principal Python Engineer for Agentic AI /KE/
Deutsche Telekom Services Europe is an internal services provider of Deutsche Telekom, one of the world's leading integrated telecommunications companies.
We feel at home in the cosy middle of Europe. Our shared mission is to put priority on customer satisfaction, quality and innovations in areas of finance and procurement services.
We are on our way to become industry's top service company and we want you to be a part of the success story!
Apply now and design with us the world of tomorrow.
AI SERVICES – Principal Python Engineer for Agentic AI /KE/
Your responsibilities will include:
- You will lead the development and improvement of our Python backends for LLM-backed agent applications, such as chatbots, as well as the ongoing evolution of our Agentic AI platform.
- You will provide technical direction for a team of Agentic AI engineers, define engineering standards, review architectural decisions, and support the team in delivering scalable, reliable, and production-ready solutions.
- You will improve customer experience by stabilizing and enhancing existing solutions, including better visualization, automated validations, function calling, agent actions, observability, and quality assurance.
- You will identify and implement new business requirements and translate them into sustainable technical solutions.
- You will drive cooperation with the business and actively contribute to customer workshops, meetings, and calls. The ability to explain technical topics clearly to business colleagues and demonstrate a consultant’s mindset is essential.
- You will lead technical brainstorming sessions, architecture discussions, code reviews, and pair programming sessions.
- You will identify potential use cases for automation, Agentic AI, and data science. Innovative ideas are welcome.
- You will actively mentor engineers, support their development, and promote software engineering best practices across the team.
We work in a HYBRID STYLE of working with the possibility of working from home , but twice a week we meet in the office in Košice or Bratislava for meetings.
The published salary is the minimum possible offer.
The starting salary may be higher depending on the extent of fulfillment of the employee’s requirements (education, language skills, required practice, personality assumptions and skills).
What we expect from you:
Your skills:
• At least 8 years of experience building and operating production-grade software in Python, preferably using frameworks such as FastAPI, Pydantic, Temporal, and similar technologies.
• Proven experience leading engineers, technical workstreams, or software development teams.
• Strong understanding of software architecture, distributed systems, API design, asynchronous processing, scalability, resilience, and production operations.
• Preferably strong knowledge of LLM and Agentic AI frameworks such as LangChain, LangGraph, LlamaIndex, as well as Azure OpenAI and OpenAI APIs. Ideally, you have already built and operated a production-ready solution using these technologies.
• Practical experience with relational databases such as PostgreSQL, in-memory databases such as Redis, and document or search databases such as Elasticsearch and MongoDB.
• Proven experience designing, building, and operating RESTful APIs and web service applications in production.
• Cloud and DevOps experience, including Docker, CI/CD tools such as GitHub Actions or GitLab CI, and deployment to Azure, AWS, or GCP.
• Understanding of production requirements for Agentic AI systems, including testing, evaluation, observability, security, cost management, and reliability.
• You are comfortable making technical decisions, explaining trade-offs, and aligning engineers and stakeholders around a clear solution.
• You are flexible, comfortable with changing priorities, and prefer working in agile environments such as XP, Scrum, or Lean.
• You can explain complex architectures and technologies in a clear and accessible way to customers and business stakeholders.
• You actively mentor more junior personnel and share your knowledge of software development lifecycle and best practices.
• Fluent written and spoken English.
Nice to have:
• German language skills.
• Prompt engineering and LLM evaluation experience.
• Familiarity with MLOps or AI workflow orchestration tools such as MLflow or Dagster.
• Experience with Kubernetes, infrastructure as code, or LLM observability tools.
• Domain-specific experience in telecommunications or finance.
At our company, we believe in creating a positive work environment where employee wellbeing and growth truly matter. If this opportunity excites you and you’d like to join a dynamic team that genuinely cares about its people, send us your CV in English and become part of our journey!
As part of Deutsche Telekom Group, we offer not only a healthy work-life balance and international career opportunities, but also strong support for personal and professional development. We encourage performance, ambition, and growth, and provide a wide range of trainings, certifications, and e-learning programs to help you continuously develop your skills. At Deutsche Telekom Services Europe Slovakia, we are proud to be an equal opportunity employer.
We review all applications fairly, without discrimination based on race, color, religion, gender, sexual orientation, gender identity, nationality, citizenship, age, disability, health condition, marital status, or any other characteristic protected by law. We welcome candidates from all backgrounds and strive to create an inclusive, supportive, and empowering workplace where everyone can thrive.
AI SERVICES – Principal Python Engineer for Agentic AI /KE/
Benefits
Annual bonus
In accordance with the employer’s compensation policy, employees are eligible for an annual bonus of up to 5% (expert positions) or 15% (managerial positions) of their annual base salary, subject to achieving 100% of the performance criteria defined by the employer.
Meal Allowance
Meal contribution of EUR 7.50 per working day, of which EUR 6.50 is paid by the employer, provided in advance via a Ticket Restaurant card or as a financial allowance.
Cafeteria & Wellbeing
Monthly contribution of EUR 25 to the Cafeteria benefits system or a MultiSport card + access to psychological counselling services Mojra.sk through Cafeteria benefit points.
Flexibility & My Days
Employees can organize their working day according to their preferences, while respecting the core working hours from 9:00 AM to 2:00 PM. Entitlement to one or more paid leave days without the need to provide a medical certificate. The number of days is determined by the line manager. Additional paid leave is provided to parents of first-grade schoolchildren on their child’s first school day.
Company Mobile Phone
Company mobile phone for both business and personal use, including unlimited calls, SMS/MMS, and 15 GB of EU roaming data at 4G speed. After the data allowance is consumed, the speed is reduced to 128 kbps.
Learning & Growth
Career development and training opportunities focused on both soft and hard skills. Employees receive a EUR 180 contribution towards language courses on each employment anniversary with DTSE Slovakia.
Refferal bonus
Reward of up to EUR 1,700 for the successful referral of a candidate hired on a permanent employment contract.
Discounts
Discounts of up to 50% on Telekom products, including internet, fixed-line, and mobile services. Discounts with dozens of partners in the areas of health, sports, fashion, culture, travel, housing, and education.
Supplementary Pension Contribution
Employer contribution to the employee’s selected supplementary pension scheme in the amount of 1.5% of gross salary.
Benefits for Future Parents
Employees receive a EUR 100 contribution upon the birth of a child. Fathers receive one additional week of paid leave on top of the statutory two-week paternity leave. Employees going on parental leave may retain their company mobile phone for up to one year.
Community & Team Spirit
Summer and Christmas parties, St. Nicholas Day events, Health Days, blood donation campaigns, team-building activities, and more.
Relocation Bonus
Employees relocating from another country to Slovakia based on an employment contract with DTSE Slovakia are eligible for a EUR 1,500 relocation allowance, paid during the first three months of employment (EUR 500 per month).
Are you interested in this position?
Fill out the form and join our team.