Junior BI Developer
Added: 19.02.2026
Multiple locations
Region: Europe
Your responsibilities:
- Delivering BI reporting implementation, development, and maintenance projects.
- Designing and developing data integration processes (ETL/ELT) and SQL queries.
- Building data models, reports, and dashboards in Power BI.
- Publishing and maintaining reports in Power BI Service (workspaces, permissions, refresh schedules).
- Collaborating with business stakeholders to analyze requirements and propose solutions.
We are looking for you, if you have:
- Practical knowledge of Power BI Desktop (visualizations, dashboards, data storytelling).
- Ability to create interactive and user-friendly reports aligned with UX/UI principles.
- Experience working with Power BI Service (publishing, workspace management, permissions, scheduled refresh).
- Knowledge of SQL (queries, views).
- Experience working with various data sources (databases, Excel, SharePoint, APIs, CSV files, OData, etc.).
- Basic understanding of ETL/ELT processes (e.g., Power Query, Dataflows, Azure Data Factory, or similar tools).
- Ability to cooperate with business stakeholders and translate business needs into technical solutions (in collaboration with an analyst/architect).
- Attention to quality, readability, and performance of code and reports.
- Strong communication skills and willingness to work in a team.
- Proactive attitude and engagement in improving reporting processes and data automation.
Nice to have:
- Knowledge of Azure Data Platform and/or Microsoft Fabric.
- Experience with Python in the context of data analysis or integration.
- Experience working in Agile / Scrum methodologies.
- Microsoft certifications (e.g., PL-300, DA-100).
We offer:
- Participation in interesting and challenging projects.
- Flexible working hours.
- A great, non-corporate atmosphere.
- 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.