[Hiring] Senior DevOps Engineer @Ostrom

Role Description

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.

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
• 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.

Requirements

• 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 KMS (nice to have).
• Experience improving secrets management.
• Experience building reusable CI/CD components (custom GitHub Actions).
• Experience setting up a monitoring stack.
• 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.

Benefits

• An annual learning budget.
• Company-pension scheme.
• Company events.
• Discounted USC membership.
• Discounted BVG public transport ticket.
• E-bike or e-moped.
• Exclusive discounts via FutureBens or monthly vouchers - the choice is yours.