Staff Engineer (BackEnd/Platform)

- Scale the Systems Powering the Energy Transition

At Greenely were building the next generation of cloudnative energy systems that process realtime data from millions of connected devices. Our mission is simple but bold: help households lower energy consumption and accelerate the shift toward a more sustainable future.

As a Staff Engineer (BackEnd/Platform) youll lead crossteam architecture and be a handson builder. Youll set technical direction for highscale data and API systems raise the bar on reliability and developer experience and create a psychologically safe environment where engineers can do the best work of their careers.

What youll lead

• Own technical strategy for key platform domains (e.g. realtime ingestion timeseries storage APIs event pipelines) balancing performance reliability and cost.

• Level up the platform: establish standards for testing observability (metrics/logs/traces) CI/CD and deployment and resiliency (SLOs error budgets incident response).

• Drive crossteam initiatives: author and review RFCs define service boundaries and contracts and lead design reviews that align product data and platform needs.

• Mentor and educate: coach senior and junior engineers model inclusive communication and foster psychological safetyinvite dissenting views and make tradeoffs explicit.

• Ship meaningful outcomes: contribute code in Python; guide migrations derisk complex changes and improve developer productivity (tooling guardrails docs).

What youll bring

• Extensive backend experience with deep proficiency in Python and distributed systems.

• A track record designing and scaling APIs and data platforms handling highvolume timeseries/realtime data under performance constraints (REST/gRPC Django/FastAPI PostgreSQL Aerospike Redis).

• Practical expertise with microservices containers and cloud (AWS preferred) plus infrastructure as code (Terraform) and orchestration (Kubernetes).

• Comfort with eventdriven patterns and streaming/messaging (e.g. Kafka/Kinesis/SNS/SQS) and strong datamodeling instincts.

• Experience implementing and operating application performance monitoring (APM) and full observability systemsmetrics logs and distributed tracingand using these insights to design scale and maintain highly reliable distributed services

• Proven ability to lead through influence: communicate clearly with engineers and stakeholders write crisp design docs and challenge assumptions respectfully (dare to speak up).

• Commitment to security privacy and reliability by default; experience running oncall and postincident learning.

• Fluency in English; Swedish is a plus.

Bonus points

• Experience with IoT data pipelines MQTT/edge connectivity or device telemetry at scale.

• Observability at scale (OpenTelemetry) performance tuning and FinOps/cost optimization.

• Experience with data engineering tools such as Apache Iceberg Airflow Spark or DBT

• Leading large migrations (e.g. monolith services storage transitions multiregion).

What success looks like (first 612 months)

• A clear architectural roadmap for a core domain executed via collaborative RFCs and phased delivery.

• Improved availability and measurable reduction in incident frequency/severity.

• Standardized design review and SLO practices adopted across teams; stronger developer experience and velocity.

• Mentored engineers stepping up to lead components and crossteam efforts.

Why join Greenely

• Tech with purpose: Tackle highimpact platform challenges that directly help people reduce energy use and CO₂ emissions.

• Impact at scale: Shape cloudnative systems processing realtime data from smart meters and edgeconnected devices.

• Growth and influence: Your decisions will guide how we design scale and evolve our backend architecture and developer experience.

• Culture and benefits: Wellness allowance (5000 SEK/year) paid wellness hour private health insurance occupational pension competitive salary and a centrally located office at Vasagatan 40. We value inperson collaboration and offer flexibility: 4 days in the office and 1 day remote per week.

• Start date: Flexible

• Location: Stockholm Sweden

Greenely is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive psychologically safe environment for all employees.

About Greenely

Greenely is on a mission to create the best customer experience for the modern energy consumer through technology. As a digital energy provider we help people reduce their electricity costs by optimizing their home and cars electricity usage with our smart app. Supported by Nordic venture capital companies we aim to enable households worldwide to connect control and optimize their energy usage. We believe that the best electricity is the one that is never used - a win-win for both wallets and the environment!

WE ARE bold and push the limit.

WE energize each other.

WE think like owners.

WE lead with knowledge.

Please note that we do not accept applications via email as we protect your privacy.

We kindly request recruitment agencies to refrain from contacting us regarding this position as we handle our recruitment efforts in-house. Thank you for your understanding.