Senior Full Stack Software Engineer

Vattenfall is a European energy company with approximately 21 000 employees. For more than 100 years we have electrified industries, supplied energy to people's homes and modernized our way of living through innovation and cooperation. We are looking for talented individuals who, in addition to their passion for their own role, so have strong team spirit and want to contribute to supporting a meaningful corporate mission.

Business Area (BA) Markets role in Vattenfall is to maximize the value of the overall portfolio by optimizing and dispatching, hedging and sourcing for Vattenfall's sales and generation volumes. We serve as Vattenfall's single access to energy commodity markets and electricity, emissions, fuels, freight, and renewable certificates. We employ around 500 professionals who are active across Europe with offices in Sweden, Germany, The Netherlands and the United Kingdom. In BA Markets the mission of the Unit OU Operations is to drive the digital transformation. OU Operations consists of diverse and highly skilled employees from more than 20 countries. We work internationally from our locations in Stockholm, Hamburg and Amsterdam. We have a culture of care and growth. You will collaborate with inspiring people around you, on complex and interesting topics. Together, we drive the energy transition and contribute to a journey towards becoming fossil-free

What will you do?

Your tasks and responsibilities: Develop, support, and enhance world class software solutions for algorithmic trading together with algorithmic traders, developers, and data scientists in a fast moving agile working environment Work in the area of system availability, latency, performance, efficiency, change management, monitoring, emergency response, and capacity planning (on-premise, cloud, and co-location) -> you contribute to “site reliability engineering” Focus on the user interface, drive the development of our algo monitoring UI as member of the UI squad in the agile team Gain broad exposure to both technical and business aspects of trading Adhere to and further develop the company's algorithmic trading software development standards and best practices, incl. documentation, testing, and peer review Location Katowice (main location), Poland (working remotely)

Who are you?

Are you a self-starter with dedication for building and managing infrastructure as a robust and reliable for our algorithmic trading? Do you like to work in a dynamic trading environment together with the front office? Do you want to contribute to successful algorithmic trading by permanently monitoring and optimizing the performance? You embrace to cooperate with software development teams? In that case this job could be the right one for you.

As our Software Full-stack Engineer you will bring: Proven programming skills and experience in C#/.NET Solid backend system implementation experience, good experience with Linux Experience in CI/CD and automated deployment (ideally Azure DevOps, Terraform, pipelines) Experience in working with Blazor (Blazor Server, Blazor WebAssembly), CSS/HTML and gRPC Strong experience with distributed systems and cloud/container technologies (Kubernetes, ideally in Azure) Expert level knowledge of algorithms, design patterns, OOP, threading, multiprocessing, etc. Fluency in English (both written and spoken) Team player attitude with strong communication skills Experience working with Copilot or AI agents is an asset Bachelor or Master degree within IT domain is an asset Experience in Energy domain is an asset

Good remuneration, a challenging and international work environment, and the possibility to work with some of the best in the field. You will be working in interdisciplinary teams and you can always count on support from committed colleagues. We offer attractive employment conditions and opportunities for personal and professional development. JOBV1_EN