Junior Research Software Engineer for Sustainability Science - Full Stack- NL

pThe Institute of Environmental Science CML at Leiden University is looking for a motivated Junior Research Software Engineer (RSE) with experience in full-stack development, data visualization, and modern software engineering practices to turn scientific insights into reliable and user-friendly software. In this role, you will help design, build, and maintain the next generation of industrial ecology research tools that support sustainability, circular economy analysis and decision making, as well as reproducible science across the institute. You will work closely with researchers to help create dashboards, APIs, and visual analytics that communicate scientific results to academic users, policymakers, and the wider public. Your contributions will directly empower transparent, open, and reproducible research within for sustainability decision making. /pbrIs dit de functie die u zoekt? Zo ja, lees dan verder voor meer details en zorg ervoor dat u vandaag nog solliciteert.brpIn your role, you will work closely with a Senior Research Software Engineers, Principal Investigators and PhDs to strengthen the scientific software engineering basis of our institute. Specifically, you will be responsible for tasks such as: /pbrullibr/liliBuilding and maintaining scientific software, web applications and dashboards for research dissemination and policy communication (e.g., WISE database, Activity Browser, Panorama web-app, ReLab)br/liliSupporting the development and maintenance of data pipelines and reproducible workflows for environmental databases and analytics.br/liliCollaborating with researchers to scope features, translate research needs into user-friendly tools, and ensure usability and accessibility.br/liliSupporting deployment in cloud and/or open environments (e.g., containerized services), working with the senior RSE on infrastructure alignment.br/liliPromoting good data and software management for FAIR and open science practices, version control (Git/GitHub), testing (pytest), packaging, documentation, etc.br/li /ulbrWhere you will workbrpLeiden University is situated between Amsterdam (36 km) and The Hague (15 km) and was founded in 1575, making it the oldest university in the Netherlands. It houses around 35,000 students originating from 112 nationalities, facilitated by approximately 8,000 staff. /pbrpThe Institute of Environmental Science (CML) at Leiden University offers a vibrant and supportive community of scientists committed to the challenges of sustainability. CML distinguishes itself for its attention to professional development in coordination with the interests of its scientists. As such, there are plenty of opportunities to learn new skills, expand your knowledge, collaborate across disciplines, and experiment in a friendly environment fully embodying academic freedom across all career levels. /pbrpThe core focus of CML is to perform research and education in the interdisciplinary field of Environmental Sciences. CML focuses on the sustainable use of natural resources and preservation of natural capital and biodiversity. CML has a culture of mutual support and collaboration between researchers. CML has two Departments: Industrial Ecology (CML-IE) and Environmental Biology (CML-EB). Presently, about 150 fte (including postdocs and PhDs) are employed at CML. CML further collaborates with TU Delft and Erasmus University in the Leiden-Delft-Erasmus Centre for Sustainability (LDE-CfS), and with the Naturalis Biodiversity Centre. /pbrpThe Institute of Environmental Sciences (CML) is positioned in the Faculty of Sciences. The Faculty of Science is a world-class faculty where staff and students work together in a dynamic international environment. It is a faculty where personal and academic development are top priorities. Our people are committed to expanding fundamental knowledge by curiosity and looking beyond the borders of their own discipline; their aim is to benefit science and to make a contribution to addressing the major societal challenges of the future. The research carried out at the Faculty of Science is very diverse, ranging from mathematics, information science, astronomy, physics, chemistry and bio-pharmaceutical sciences to biology and environmental sciences. The research activities are organized in eight institutes. These institutes offer eight bachelor’s and twelve master’s programmes. The faculty has grown strongly in recent years and now has more than 2.800 staff and almost 6000 students. We are located at the heart of Leiden’s Bio Science Park, one of Europe’s biggest science parks, where university and business life come together. /pbrpFor more information, see Information about CML can be found at You Bringbrullibr/liliMSc in computer science, data science, AI, environmental informatics, or related field.br/liliGood programming skills with Python and JavaScript/TypeScript. Other programming languages are a plus.br/liliExperience with front‑end frameworks (e.g., React) and data visualization (e.g., D3/Plotly).br/liliExperience building back‑end APIs (e.g., FastAPI, Django, Flask) and integrating databases (SQL/NoSQL).br/liliExperience contributing to open‑source projects.br/liliFamiliarity with containerization (e.g., Docker) and reproducibility toolsbr/liliExcellent collaboration skills, a service mindset, and enthusiasm for environmental applications and open science.br/li /ulbrWhat We OfferbrpWe offer an initial one-year contract, with an option to extend to a permanent contract based on performance, following the pay scale 9 in accordance with the Collective Labour Agreement for Dutch Universities. Salary ranges from € 3.708 to € 5.057 gross per month based on a full‑time position. /pbrpAt our institution, we believe in flexibility and work‑life balance! With a full‑time position (38 hours per week), you are entitled to b232 vacation hours per year /b, which is equivalent to b30.5 vacation days /b (based on a 38‑hour work week). If you value flexibility, you have the freedom to adjust your working hours. For example, you could choose to work 40 hours per week, earning extra compensation hours. Alternatively, if you prefer a shorter work week, you can work 36 hours per week by using some of your vacation days to create more time for yourself. You’ll work closely with your supervisor to tailor your schedule in a way that suits both your needs and the team’s. /pbrpIn addition, we offer a comprehensive benefits package, including: /pbrullibr/liliHoliday allowance (8%) and an end‑of‑year bonus (8.3%)br/liliAn attractive pension scheme with ABP, ensuring your financial well‑being both now and in the futurebr/liliExtensive options for secondary employment conditions: You can explore options such as sabbaticals, paid parental leave, and the individual choices model, which allows you to exchange leave days and/or salary for benefits like an advantageous sports subscription, bicycle scheme, and childcare optionsbr/liliHybrid working options: If your role allows, you can enjoy the flexibility of working from home within the Netherlandsbr/liliHome‑working allowance: You’ll receive a home‑working allowance (for both workdays and internet), and the university will provide you with a laptop and support for creating a comfortable home officebr/li /ulbrpWe are committed to offering a flexible, supportive, and rewarding work environment, designed to help you grow both professionally and personally. xgiwjmb For more information about the working conditions, please visit: We ValuebrpAt the Faculty of Science, we value inclusiveness and strive for a diverse community with equal opportunities for all. We give full support to our staff in achieving their potential to become independent academic researchers and teachers. For more information about our policy on diversity and equality please go to the diversity page on our website: researchers are also welcome to join the Researchers In Science for Equality network of the Faculty of Science ( ). /pbrpEnquiries can be made to /pbrSelection Committeebrullibr/liliFranco Donatibr/liliRutger Hoekstrabr/liliHeather Loganbr/li /ulbr/p /p