Senior DevOps Engineer (AWS Platform & Backend Support)

About the Role

We are looking for a Senior DevOps Engineer to take ownership of our cloud infrastructure and help evolve a modern AWS-based platform. You will work on reliability, observability, automation, security, and CI/CD — and occasionally support backend engineers with troubleshooting or small contributions to our backend services.

This role is ideal for someone who enjoys building scalable systems, improving developer workflows, and driving technical excellence across a growing engineering team.

What You Will Do

• Own and improve AWS infrastructure across staging and production environments.
• Build, maintain, and standardize Infrastructure-as-Code using Terraform.
• Manage and optimize containerized workloads on ECS Fargate.
• Strengthen observability: metrics, dashboards, alerting, and logging.
• Improve CI/CD pipelines using GitHub Actions.
• Enhance IAM, secrets management, and overall cloud security posture.
• Perform maintenance of databases running on RDS (Postgres, MySQL).
• Support backend teams with debugging, migrations, or small changes in Node.js/NestJS when needed.
• Drive automation, reliability, and scalability across the platform.

What We’re Looking For

Core Technical Skills

• AWS Expertise, including but not limited to:
  • VPC (subnets, routing, NAT gateways, ALBs, security groups)
  • Route53
  • ECS (Fargate)
  • Lambda
  • RDS (MySQL/Postgres)
  • SQS/SNS
  • CloudWatch
  • S3
• Strong experience with Terraform.
• Deep understanding of AWS networking and secure infrastructure design.
• Experience operating RDS (backups, upgrades, failovers, troubleshooting).
• Hands‑on CloudWatch experience (metrics, dashboards, Logs Insights, alarms).
• Good understanding of event‑driven systems (SQS, SNS, Lambda triggers, retries, DLQs).
• Strong proficiency with Docker and containerized deployments.
• Experience with GitHub Actions and modern CI/CD workflows.
• Programming skills in Python or Golang.
• Working knowledge of Node.js/NestJS to support backend engineers occasionally.

Additional Desired Experience

• Experience with Docker image hardening and optimization (multi‑stage builds, non‑root users).
• Familiarity with API gateways or automating OpenAPI specifications.
• Experience integrating SSO/SAML/OIDC for cloud and internal tools.
• Experience with AWS WAF or KMS (nice to have).
• Experience improving secrets management.
• Experience building reusable CI/CD components (custom GitHub Actions).
• Familiarity with secure file transfer mechanisms (SFTP/SSH key setups).
• Experience with distributed backend architectures (microservices, event‑driven, multi‑service systems).

Who You Are

• Have 5+ years of experience as a DevOps Engineer.
• You take ownership and think long‑term.
• You are systematic, structured, and pragmatic.
• You communicate clearly and proactively.
• You collaborate easily with backend engineers and product teams.
• You bring calmness and maturity during incidents and debugging.
• You are able to quickly learn new technologies and apply them to solve problems.

Interview Process

The interview process will start from January 2026 on.

About Us

We’re Germany’s fastest‑growing digital green energy provider and a Certified B Corp™, driving the energy transition by making renewable energy more accessible and inclusive.

How? Through variable tariffs, dynamic pricing, smart EV charging, heat pump and solar optimization, and Germany’s first virtual power plant: NeoGrid™.

At Ostrom, you’ll work in a dynamic, open environment where you can be yourself, take on challenges, and grow both personally and professionally.

Benefits

• Annual learning budget.
• Company‑pension scheme.
• Company events.
• Discounted gym membership.
• Public transport ticket.
• e‑bike or e‑moped.
• Futurebens or monthly vouchers – the choice is yours.
• Competitive salary and access to company shares (VSOP).
• Relocation package (visa and relocation support).
• Flat hierarchy and transparent culture.
• Work from home or any location you prefer.

Environment Impact

Each customer who switches to Ostrom on average helps offset 1.5 tons of CO₂ emissions per year compared to the average German energy mix.

Transparency & Culture

We believe in transparent communication — from weekly town halls and quarterly updates to regular retrospectives. Got feedback or an idea? We’re all ears.

We thrive on collaboration. Wins are shared and so are the celebrations from monthly happy hours to team trips and company events.

Whether you prefer the office, your home desk, or a sunny spot in Sardinia — you work where you work best.

We grow together with personal development paths, learning budgets, and regular knowledge‑sharing sessions. Try things out, learn along the way, and keep moving forward.

Contact

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