Senior Quantitative Developer d/f/m

RWE Supply & Trading GmbH
To start as soon as possible, full time / part time, permanent

About the role

At RWE Supply & Trading, you’ll find a unique chance to shape the future of energy markets through advanced quantitative modelling and developer-driven innovation. Join our Quantitative Development and Modelling group - a dynamic team of developers and analysts responsible for designing and evolving the backbone of our quantitative libraries and analytics, all with direct impact on our global trading and risk management activities.

This is your opportunity to steer the architecture and direction of our growing quant infrastructure, collaborating daily with quants, traders, IT and Risk teams, and reporting into the Head of Quantitative Development and Modelling. You’ll drive meaningful change, mentor colleagues, and set the standards that ensure we stay on the cutting edge of financial engineering for energy and commodities markets.

• Orchestrate architectural direction and act as a sparring partner in quantitative library design, collaborating closely with the Head of Quantitative Development and Modelling to ensure our infrastructure is robust, modern, and fit for the future
• Foster the development of robust, scalable, and lean code infrastructure, prioritising reuse and extensibility.
• Contribute hands-on to all stages of agile library development: from design to high-quality coding, code reviews, and ongoing maintenance.
• Ensure model integrity and compliance, delivering continuous improvements and swift bug resolutions.
• Enable the business by translating complex requirements into adaptable technical solutions, working side-by-side with stakeholders.
• Inspire and mentor the Quant team, elevate technical and modelling standards, and add to our growing collective expertise.

Job requirements and experience

• At least 10 years of hands-on experience in building, refactoring, and architecting quantitative libraries within financial or trading environments.
• Deep expertise in quant library design, comfortable evaluating multiple methodologies and understanding their practical strengths and limitations.
• Strong, demonstrable track record in software architecture and design within quant-driven teams.
• Broad understanding of financial products and valuation across energy, commodities, equities and FX – with any exposure to fixed income or credit as an advantage.
• Experience applying quantitative techniques to solve complex commercial and trading problems in a front-office context.
• Mastery of C#, C++, and Python for the design and implementation of quant infrastructure, including support for distributed systems on Windows and Linux (containerised environments).
• Effective collaborator with outstanding communication, mentoring and influencing skills - able to unlock value between technical and business teams.
• Strategic mindset combined with hands-on execution, balancing quality, agility and governance in a business-critical environment.
• Driven to build a culture based on trust, continuous improvement, and curiosity.

 Advantageous, but not essential

• Experience integrating and supporting multi-platform environments and service-based deployments.
• Exposure to fixed income or credit product modelling.
• Familiarity with innovative approaches to scaling quant infrastructure in global trading operations.

What we value most is someone who continuously demonstrates courage, thrives to create impact, takes ownership and seeks to build trusting, collaborative relationships. So, even if you think you do not yet display all of the skills listed above, we would still like to hear from you.

Further, we welcome applications from individuals who may not be able to commit to full-time roles. At RWEST, finding the right person for the job is our top priority, and we are willing to explore flexible arrangements.

Your benefits

We want to ensure your time with us is fulfilling and rewarding. We offer a comprehensive package designed to support your well-being as well as your personal and professional growth. Here’s what you can look forward to:

• The chance to influence and modernise quantitative infrastructure at the heart of Europe’s leading energy trading company.
• Flexible working options and a choice of top locations in Essen, London or Swindon
• Collaboration with top experts and broad exposure to the latest in energy, commodity, and financial modelling.
• Opportunities for ongoing personal and professional development, including tailored training, innovation-focused projects, and direct support from industry leaders.
• A supportive, inclusive team environment that values expertise, career growth and ambition

Apply with just a few clicks: ad code 92031
Any questions? Contact HR: Lisa Koenen, lisa.koenen@rwe.com

We look forward to meeting you. Of course, you can find us on LinkedIn, Instagram, Facebook, YouTube and Xing, too.

We value diversity and therefore welcome all applications - regardless of gender, disability, nationality, ethnic and social origin, religion/belief, age, sexual orientation, and identity. #inclusionmatters

RWE Supply & Trading is our connection to the world’s energy markets. Headquartered in Essen, Germany, the company operates one of Europe’s largest and most advanced energy trading floors. A diverse team of over 2,200 professionals from around 90 countries trades electricity, gas, commodities, and CO2 emission allowances. With precise market analysis and a strong customer focus, we create innovative energy supply solutions and tailored risk management concepts for industrial clients.

We also ensure the commercial optimisation of RWE’s power plant portfolio and markets the electricity generated by RWE. In addition, legally independent RWE gas storage companies operate in Germany, contributing to a secure energy supply.