Backend engineer - Platform & IoT Integration

We are looking for:

We are looking for an experienced senior level Backend Engineer - Platform & IoT Integration, who will take ownership of core backend and integration systems across our platform. You combine deep technical skill with a generalist mindset: comfortable moving between application code, cloud infrastructure and device-level integration, and trusted by the team as the person to call when something breaks or a solid architectural decision is needed.

Key responsibilities:

• Own and evolve core backend and billing services end-to-end.

• Design, build and maintain backend services and their AWS deployment pipelines.

• Manage and evolve our timeseries data stack (e.g. QuestDB) that underpins device and energy analytics.

• diagnose and resolve production issues across cloud and device code.

• Support teammates who are blocked on code or infrastructure, and share architectural knowledge across the team.

• Apply solid software design practices (e.g. domain-driven design, microservice patterns) and contribute to version releases across INT/ACC/PROD environments.

Technical skills

• Proven experience building backend services (Node.js/TypeScript or comparable) in production.

• Hands-on experience with AWS (e.g. Lambda, CDK) for deploying and operating cloud-native services.

• Experience with timeseries or high-volume data pipelines (e.g. QuestDB, Timestream, InfluxDB or similar).

• Working knowledge of device/IoT integration and data scraping, or a strong willingness to learn it.

• Solid understanding of microservice, API-driven and domain-driven design (DDD).

• Comfortable using observability tooling (e.g. CloudWatch, Sentry) to diagnose issues in production.

• Comfortable using AI tools to support and accelerate technical work.

• Solid grasp of security requirements for cloud and connected devices, and how to actually implement them (secure-by-design APIs, secrets and key management, least-privilege IAM)

• Awareness of the compliance landscape our platform operates in (GDPR, NIS2, CRA) and able to translate current and upcoming obligations into concrete architectural and release decisions.

Soft skills

• Strong communicator who can explain technical trade-offs clearly to engineers and non-technical stakeholders alike.

• A generalist mindset, comfortable moving between application code, infrastructure and device-level integration rather than staying in one narrow lane.

• High degree of ownership and reliability; you follow through without needing to be chased.

• Comfortable working independently in a fast-moving scale-up environment, and proactive about proposing improvements.

• Open to doing thorough code reviews and sharing knowledge, not just shipping your own work.

• Able to link the dots across systems and communicate clearly when diagnosing what broke and why.

• Willing to support teammates who are blocked, even outside your own area of ownership.

Nice to have

• Experience in the energy sector (IoT platforms, smart metering, renewables, billing/tariff engines).

• Familiarity with monitoring and error-tracking tools (e.g. Sentry) beyond native cloud logging.

• Familiarity with real-time/distributed database migrations.

• A track record of introducing unit-test coverage into existing codebases.

• Exposure to serverless architecture patterns and infrastructure as code (e.g. AWS CDK).

• Experience with event-driven architectures (Kafka, Kinesis, MQTT, etc.).

• Experience applying domain-driven design (DDD) principles in production services.

• Comfortable contributing to release and deployment coordination across multiple environments (INT/ACC/PROD).

• Experience coordinating hardware/software integration projects (embedded + cloud systems).