Senior .NET Engineer
Added: 22.01.2026
Multiple locations
Region: Europe
Your responsibilities:
- Develop and enhance backend services supporting a modern TV streaming platform,
- Build and maintain back-office applications integrating with: BSS (Business Support Systems), IAM (Identity and Access Management), 3rd party streaming services,
- Collaborate with product owners and cross-functional teams to shape user-centric solutions,
- Apply software architecture principles and design patterns to create scalable, maintainable, and testable systems,
- Ensure operational stability through monitoring, maintenance, and platform upgrades,
- Contribute to continuous improvement of development practices and technology choices,
- Work in Agile teams and participate in cross-functional initiatives.
We are looking for you, if you have:
- Strong experience with .NET / C# as a primary development environment,
- Professional experience with Python,
- Solid understanding of: OOD, SOA, SOLID principles,
- Experience working with: SQL and NoSQL databases, RESTful APIs,
- Experience designing and maintaining distributed, large-scale, high-load systems,
- Hands-on experience with cloud platforms (AWS), Kubernetes, and ELK stack,
- Familiarity with CI/CD pipelines and GIT.
Nice to have:
- Experience with application monitoring tools (e.g. Datadog)
- Knowledge of Go, Node.js, or PHP
- Experience with GraphQL
- Background in TV, media, or streaming platforms
We offer:
- Participation in interesting and demanding projects
- Flexible working hours
- A great, non-corporate atmosphere
- Stable employment conditions (contract of employment or B2B contract)
- Opportunities for development and promotion
- Attractive package of benefits
- Work model: remote or hybrid (2 days per week from the office)
We reserve the right to contact the selected candidates.
Why is it worth joining TTMS?
Flexible working hours
Not everyone feels comfortable working the standard 9 a.m. to 5 p.m. hours. We have been successfully running projects for many years despite diversified work patterns.
Possibility of hybrid work
At TTMS, desk-to-desk work is what drives us, but we understand if someone prefers a hybrid model. We are equipped with all the necessary tools to work in a hybrid model.
Great, non-corporate atmosphere
Professionalism, attention to the quality of work and a friendly, informal atmosphere are not mutually exclusive. A flat structure and natural, friendly relationships create the basis for creativity and innovation.
Interesting, international projects
We create solutions for medium and large companies, we are present in Poland, Malaysia, Denmark, the UK, Switzerland, and India – the effects of your work will travel around the world. In TTMS you have an influence on the company’s success.
Together towards climate neutrality
We select subcontractors to minimize the carbon footprint, organize bush plantings, save peat bogs – all to achieve climate neutrality in 2025. We are glad that we are attracting more and more people who also care about sustainable development and environmental protection.
Friendly offices
Our offices are modern spaces that inspire employees and are environmentally friendly. Białystok is the kingdom of Marvel superheroes, Krakow is a soothing tropical forest, Wrocław is an art gallery, and the Lublin branch is a rock u0022hall of fameu0022.
Would you like to work for us?
Sending CV
Include information about technical skills, knowledge of programming languages and IT tools, and possibly experience in projects.
Phone Screening
The interview is aimed at assessing the candidate’s suitability for the position and verifying basic information from the CV. It is also an opportunity to discuss the candidate’s expectations and briefly present the job description and working conditions.
HR + technical meeting
We talk about the candidate’s professional experience, but also expectations regarding the new job. This is also the moment to check references and confirm the authenticity of the information provided, which allows you to get to know the candidate better and assess his fit with the company’s organizational culture.
Client company meeting
The candidate is introduced to the client. This stage aims to match the future employee to a specific project, taking into account both their technical skills and design preferences, which maximizes the chances of successful cooperation.
Employment
We sign an agreement that includes the terms of cooperation, scope of duties, remuneration and other key aspects of employment, such as the rights and obligations of both parties. From now on, the candidate becomes an official employee of the company.
Onboarding + first day of work
A comprehensive process of familiarizing a new employee with the organization, team and tools, aimed at making it easier for him to join work as quickly and effectively as possible. In TTMS, we use an internal e-Learning platform to conduct modern onboarding.
Our offices
Warsaw
The heart of our company and our command center
The Management Board of the company and management of individual business areas function here. On a daily basis, it is here that the most important, strategic and business decisions are made, as well as pro-ecological iniciatives. The Warsaw branch – located in Varso Tower – aims to be the first to create a fully eco-friendly office using renewable Energy and environmentally friendly materials, which is confirmed by the BREEM certificate.