Tech Stack
Job Description, Responsibilities & Requirements
About the Position
Senior Software Engineer - Backend Architecture & AI Systems
Greenely is on a mission to make energy smarter, greener, and more accessible. We build technology that helps households understand, optimize, and reduce their energy usage - contributing to a more sustainable future.
Our products sit at the intersection of real-time data, consumer experience, and energy infrastructure. That means the engineering challenges we tackle are both complex and impactful.
The Role
We’re looking for a Senior Software Engineer who thinks beyond tickets and implementations - someone who naturally leans into architecture, system design, and long-term technical direction.
This role is not about writing the most code. It’s about making the right technical decisions, shaping systems that scale, and guiding how we build - especially as we explore AI-driven and agentic systems within our platform.
You’ll work closely with product, data, and other engineers to design robust solutions where tradeoffs are real, constraints matter, and decisions have lasting impact.
Responsibilities
- Own and drive architecture decisions across services and systems
- Design systems that are scalable, resilient, and cost-aware
- Act as a technical sounding board for engineers across teams
- Work hands-on when needed, but focus on direction over volume
- Evaluate and introduce patterns for AI agents and automation workflows
- Identify bottlenecks and proactively improve system performance and reliability
- Balance speed vs. quality, short-term delivery vs. long-term sustainability
Requirements
- Extensive experience designing and building systems in the cloud (AWS preferred)
- Understanding of caching strategies, databases, and distributed systems - and their tradeoffs
- Experience with real production systems where performance, cost, and reliability mattered
- Experience with failure modes (and learned from them)
- Ability to think in systems, not just services
- Integrate AI agents and automation into daily workflows to drive tangible impact on delivery
- Prefer ownership and agency over rigid processes
Technical Depth We Value
- Cloud architecture & infrastructure design
- Designing and building robust distributed systems
- Data storage (SQL/NoSQL)
- Caching layers (Redis, etc.)
- Observability, monitoring, and debugging production systems
- Performance optimization and cost efficiency
- Event-driven systems and asynchronous workflows
- AI/ML systems and agent-based tooling
How You Work
- Take initiative and move problems forward without waiting for permission
- Ask “why” before jumping to solutions
- Understand that tradeoffs > perfection
- Communicate clearly with both engineers and non-engineers
- Care about building things that actually work - in production, over time
Why Greenely
- Work on real-world problems tied to energy, sustainability, and climate impact
- Be part of a team where engineering decisions matter
- High ownership, low bureaucracy
- A culture that values pragmatism, curiosity, and continuous improvement
Start date: Asap
Location: Stockholm, Sweden (on-site, with 1 day/week remote flexibility)
About the Company
We enable every home to control, optimize and earn from its energy automatically - lowering costs while strengthening the transition to a more sustainable power system.
Founded in 2014, we have 48 co-workers and are based in Stockholm.
The Greenely Team
We’re a diverse team that values different perspectives and continuous learning. We collaborate across cultures and disciplines, with one common focus: building something customers genuinely rely on.
Please note that we do not accept applications via email as we protect your privacy. We kindly request that agencies refrain from contacting us regarding this position as we do all recruitment in-house. Thank you for your understanding.