Climate & Environment Full-time

Senior Quantitative Developer

Flower ⚡

Location

Södermalm, Stockholm, Sweden (hybrid work model)

Type

Full-time

Posted

Dec 22, 2025

Mission

What you will drive

  • Build the backbone of our trading system: Design, implement, and maintain scalable pipelines and resilient infrastructure for deploying, versioning, and backtesting trading algorithms in both auction-based and continuous markets.
  • Shape trading strategies: Partner closely with algorithmic traders, energy experts, and engineers to design and deploy execution and optimization algorithms that maximize profitability across multiple wholesale markets.
  • Strengthen data-driven trading: Collaborate with the Data Platform team to ensure robust ingestion and processing of signals, logs, and market data, supporting both fast intraday trading and strategic long-term insights.
  • Elevate engineering practices: Champion best practices in software engineering, infrastructure-as-code, and MLOps to accelerate iteration while ensuring system reliability, regulatory compliance, and operational excellence.
  • Mentor and grow the team: Share your expertise, guide less experienced colleagues, and contribute to building a culture of curiosity, speed, and technical rigor.

Impact

The difference you'll make

This role helps make renewable energy stable and always available by building trading systems that optimize energy assets, leading the charge towards a reliable and predictable renewable energy system.

Profile

What makes you a great fit

  • Seasoned expert: 5+ years of hands-on experience developing and deploying algorithmic trading models, or building the systems that host them, ideally across continuous and auction-based markets.
  • Engineering leader: Strong programming skills (Python preferred) and deep expertise in building robust MLOps and cloud-native solutions. You are fluent in IaC practices and tools (Terraform, CloudFormation) and experienced in designing scalable, fault-tolerant systems.
  • Quantitative architect: Experienced in setting up and maintaining backtesting environments, ensuring models are rigorously validated for both performance and risk.
  • Full-stack problem solver: Comfortable owning everything from infrastructure to strategy deployment, with the mindset that no problem is “out of scope” if it advances the team’s mission.
  • Great communicator: Adept at explaining technical concepts to both technical peers and business stakeholders, helping align decisions across the organization.
  • Bonus points: Direct experience in energy trading, especially algorithmic execution in intraday continuous markets, or in developing strategies tailored to the dynamics of energy systems.

Benefits

What's in it for you

No specific benefits, compensation, or perks mentioned in the job description.

About

Inside Flower ⚡

Flower is a next-gen energy company leveraging AI and machine learning to make renewable energy stable and always available through smart optimization and trading of energy assets like wind and solar farms, battery systems, and EV chargers.