Streem Energy

Software Engineer — Renewable Asset Intelligence Platform

Streem Energy · Paris, France
Paris, France Closed
Applications are closed for this role. It was originally posted 2026-02-22. It’s no longer accepting applicants — see roles Streem Energy is still hiring for →, or browse the live openings below.
Type
Full-time
Experience
3-5 yr

We are hiring a Software Engineer to help us build and scale Streem’s Energy Market Platform. This role is for someone who wants to understand the business, design systems, and deliver impact, not just write code.

You will work on backend systems that encode market rules, orchestrate workflows, and support decision-making for our customers. You will have strong ownership over what you ship, from design to production.

A fast-moving environment

The renewable energy market evolves quickly — regulatory changes, new financial mechanisms, shifting operational constraints.

Our platform must evolve just as fast.

We optimize for speed of iteration without compromising long-term architectural integrity. That means building systems that are adaptable by design, making sound decisions under time pressure, and continuously improving what’s already in production.

What you’ll do:


Own backend systems end-to-end, from domain modelling to production reliability


Build data-intensive systems that support complex energy-market workflows


Make architectural decisions as the platform scales across European markets


Work closely with Product and Ops teams to translate real-world constraints into software


Improve reliability, observability and operational robustness


Maintain high engineering standards through reviews, tests, refactors and pragmatic best practices

Problems you’ll solve:


Modelling complex energy-market rules while keeping the system understandable and maintainable


Designing workflows that combine asset data, market data and customer actions


Ensuring data consistency, traceability and correctness across systems


Scaling the platform to support multiple countries with different regulations and mechanisms


Building internal tools that improve operational efficiency and reduce manual work


Making pragmatic trade-offs between speed, robustness, flexibility and simplicity

This role is for you if:


You think in systems, not tickets


You care about both speed and correctness


You are comfortable making decisions with incomplete information


You want real ownership over production systems


You continuously raise your own standards

Tech stack:

We care more about engineering fundamentals than specific tools, but our current stack includes:


Backend: Python & Ruby on Rails


Databases: PostgreSQL, MySQL, InfluxDB


Infrastructure: AWS, Docker, Heroku


Frontend: React (Next.js)

We’re looking for impact-driven engineers who want to grow with the product — and raise the bar as it scales.

You might be a strong fit if you:


enjoy understanding complex domains and translating them into clear, maintainable systems


think in systems and workflows rather than isolated features


are pragmatic and comfortable shipping imperfect first versions — and iterating quickly


can balance speed with long-term architectural integrity


take ownership of production systems and feel responsible for their reliability


make thoughtful trade-offs under uncertainty


continuously improve your skills and adapt to new tools and practices


communicate clearly and collaborate effectively across technical and non-technical teams

It’s a plus if you have experience with


B2B SaaS platforms


Data-intensive or workflow-heavy systems


Complex business rules, domain modelling, or domain-driven design


Multi-country or regulation-driven products


High-velocity environments where requirements evolve quickly

Streem Energy builds a SaaS platform helping energy players operate renewable assets across Europe: producers, aggregators and suppliers.

Our software sits at the intersection of renewable energy generation, European power markets, and complex operational workflows. We combine strong engineering, data/AI, and deep energy-market expertise to turn real-world signals and constraints into actionable decisions.

Recruitment process:


Initial Call with the Tech Lead


Technical Test with the Tech Lead


2 calls with other members of the team (among PM/CTO/Dev/CEO)


Final Team meeting to see the fit

PythonRubyRailsPostgreSQLAWSDocker
O
Customer Operations manager DE
Paris, France
Operations
S
Junior Commercial Manager
(Europe
Sales
M
Marketing Manager
Europe
Marketing
See all live roles at Streem Energy →
O
Staff Software Engineer
Omada Health Remote (US) Remote
Engineering
$202K–$253K
V
Senior Software Development Engineer in Test
Vestmark Boston, MA Hybrid
Engineering
$110K–$140K
W
Lead Software Engineer - Gov Platforms
WindBorne Systems RWC HQ
Engineering
$150K–$220K
R
Senior Software Engineer, Backend — Booking Platform & APIs
ResortPass New York, NY
Engineering
$190K–$210K
See all Engineering roles →
Applications closed