Job
- Level
- Senior
- Job Field
- IT, DevOps
- Employment Type
- Full Time
- Contract Type
- Permanent employment
- Location
- Berlin
- Working Model
- Full Remote
Job Summary
In this role, you will take ownership of AWS infrastructure, optimize CI/CD pipelines, and assist backend engineers with automation, security, and monitoring across the platform.
Job Technologies
Your role in the team
- 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.
- 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.
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Our expectations of you
Qualifications
- 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.
- Deep understanding of AWS networking and secure infrastructure design.
- Gutes Verständnis von eventgesteuerten Systemen (SQS, SNS, Lambda-Trigger, Retries, DLQs).
- Strong proficiency with Docker and containerized deployments.
- Programming skills in Python or Golang.
- Working knowledge of Node.js/NestJS to support backend engineers occasionally.
- Vertrautheit mit API-Gateways oder der Automatisierung von OpenAPI-Spezifikationen.
- Vertrautheit mit sicheren Dateiübertragungsmechanismen (SFTP/SSH-Schlüssel-Setups).
- 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.
Experience
- Strong experience with Terraform.
- Experience operating RDS (backups, upgrades, failovers, troubleshooting).
- Hands-on CloudWatch experience (metrics, dashboards, Logs Insights, alarms).
- Experience with GitHub Actions and modern CI/CD workflows.
- Experience with Docker image hardening and optimization (multi-stage builds, non-root users).
- Experience integrating SSO/SAML/OIDC for cloud and internal tools.
- Experience with KMS (nice to have).
- Experience improving secrets management.
- Experience building reusable CI/CD components (custom GitHub Actions).
- Experience setting up a monitoring stack.
- Experience with distributed backend architectures (microservices, event-driven, multi-service systems).
- Have 5+ years of experience as a DevOps Engineer.
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What we offer
- At Ostrom, you'll work in a dynamic, open environment where you can be yourself, take on challenges, and grow both personally and professionally.
- On top of offering a competitive salary, you will have access to company shares to ensure you can truly be part of the journey.
- A truly flat hierarchy and transparent company culture, where everyone's voice matters.
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Topics that you deal with on the job
Job Locations
This is your employer
Ostrom
Ostrom is an innovative startup from Berlin that has developed a platform for energy management to make fair and clean energy accessible to everyone. The company offers transparent electricity tariffs that consist of 100% green energy, along with a multilingual app for the digital management of energy consumption. With a dedicated team of over 50 employees, Ostrom is continuously growing and has so far secured more than 40 million euros in funding.
Description
- Company Type
- Startup
- Working Model
- Full Remote
- Industry
- Power Sector, Economy
Senior DevOps Engineer
- Location
- Berlin
- Working Model
- Full Remote
- Diversity
- Open for all genders
