Python Software Engineer

Delft

Full time (40 hours per week)

Medior-Senior

About this job

We are currently looking for a Python Software Engineer to join the team in Delft .

We are seeking a seasoned Python Backend Developer to contribute to the design, implementation, and deployment of scalable REST services and modular backend systems in cloud environments. As a Python Software Engineer, you will play a pivotal role in shaping our technical output and ensuring the delivery of high-quality, maintainable code and components. The position requires independence and a proactive approach to problem-solving. You will work closely with our Software Architects and cross-functional teams to plan sprints, review code, and deliver on critical milestones.

You will be working within the Defence & Security business unit, where we are working on innovative solutions that leverage space technologies. You will focus on the domain of Intelligence, Surveillance and Reconnaissance (ISR). In this domain we are developing software and hardware solutions for various applications, for example for marine surveillance by detecting dark vessels or for military mission planning by providing input concerning trafficability of certain areas of interest. Common application areas include Defence, Space and Critical Infrastructure.

Python Software Engineer

Main responsibilities

• Technical Output : Design, develop, and deploy scalable backend services using modern Python frameworks.
• Code Quality : Champion best practices in code quality, testing, and documentation, ensuring maintainability and performance.
• Collaboration : Work with architects, developers, and stakeholders to define technical requirements, plan sprints, and deliver solutions.
• Mentorship : Provide guidance and feedback to team members, fostering a culture of continuous improvement.
• Security & Discretion : Handle sensitive projects with the highest standards of confidentiality and security.

Requirements

• 5+ years of professional Python development experience , with a deep understanding of Python internals and modern frameworks (uv, FastAPI, Flask, SQLAlchemy, Pydantic).
• Expertise in REST API design, cloud deployment, and modular system architecture . ·
• Strong knowledge of code quality tools (ruff, mypy, coverage) and testing frameworks (pytest, mocks).
• Proficiency with Git, GitLab, and CI/CD pipelines .
• Experience with JIRA for project management and agile workflows .
• Excellent communication skills , with the ability to explain complex technical concepts to both technical and non-technical stakeholders.
• Self-motivated, independent, and proactive , with a track record of researching solutions, suggesting improvements, and delivering high-quality work.
• Discretion and professionalism , especially in handling sensitive projects with restricted access.
• Excellent communication skills in English , both verbally and in writing. Speaking Dutch is preferred.
• Affinity with working for Defence . Possibility to obtain security clearances on SECRET level (Dutch, NATO, EU) is a must.

Please note that if you do not hear back from us within 10 days of your application, you may assume that we have selected another candidate we would like to interview for this position. We do our best to get back to you individually; however, due to a high volume of responses, it can be that we have not been able to reject your application in person.

We kindly request that recruitment agencies do not contact us regarding this vacancy. We are not seeking assistance and will not be liable for any fees or charges associated with unsolicited CVs or candidate introductions. Any candidates submitted by agencies without prior written agreement will be considered our direct applicants and may be employed without obligation or fee.

Are you enthusiastic about becoming our new Python Software Engineer?

Apply via our application form, or send your CV and motivational letter directly to .

Our story

At S[&]T we contribute to a safer life on earth by translating space data into valuable and actionable insights. We oversee data from instruments to application, and apply our expertise within our software frameworks, information products and consultancy.

Our society relies on space and scientific instruments for climate change monitoring, navigation, defence and national security, and other crucial services we all use in our daily lives. These instruments produce an enormous quantity of complex data, and our goal is to unlock its value.

We have more than 20 years of experience working on instrument calibration, the creation of data quality monitoring tools, the development of real-time data processing frameworks, and the development of application-specific algorithms. With this, we help organisations, governments and industries to strengthen their information position and thereby improve their decision making. We focus on the following domains: Space & Science, Defence & Security, Environment & Sustainability, and High-Tech Consulting.

Privacy notice

Kindly note that acquisition from third parties (e.g. agencies) based on this vacancy is not welcome.

Meld Misbruik