DevOps / Cloud Platform Engineer

We're looking for a DevOps / Cloud Platform Engineer to become the third member of our DevOps team. One of us owns the AWS architecture and security, the other keeps our fleet of on-site edge controllers running with Ansible. You'll focus on the cloud side: working on the AWS infrastructure and the Terraform that describes it, gradually taking ownership of selected services, keeping our CI/CD and deployments reliable, and making life easier for our developers.

We run a large AWS environment with a big Terraform codebase, so there's real scale but still plenty of room to shape how things are done. We're open to both mid-level and senior candidates. If running and improving production cloud infrastructure at that scale sounds like fun, let's talk.

About Wattstor

Wattstor is a next-generation energy company accelerating Europe’s transition to net zero. We specialise in delivering renewable energy systems, on-site energy optimisation, and dynamic tariffs for businesses across the continent. Our mission is to make sustainable technology not only accessible but also simple and impactful.

Backed by years of R&D and real-world deployment, Wattstor’s smart energy solutions are fast to implement, easy to manage, and built to reduce both costs and carbon emissions.

Responsibilities

• Taking ownership of selected services and evolving our AWS infrastructure in Terraform: refactoring, modularizing and keeping a large codebase clean and predictable.
• Running and improving our container platform on ECS Fargate, plus the serverless and data services around it (Lambda, IoT Core, Kinesis, Step Functions, RDS).
• Building a developer self-service platform: reusable Terraform modules and service templates, so teams can launch a new service without writing raw Terraform.
• Standardizing CI/CD in GitHub Actions across our repositories with reusable workflows and safe deployment patterns.
• Contributing to architecture decisions for the next stages of Podium together with the development teams.
• Observability: CloudWatch, Grafana, Sentry
• Access & edge: Cloudflare, Okta

Requirements

Scripting: Python, Bash

• 3+ years of hands-on DevOps or cloud engineering, mostly on AWS, in production.
• Solid Terraform beyond the basics: writing modules, managing state, refactoring an existing codebase without breaking things.
• Observability tooling (Grafana, CloudWatch, Sentry).

Experience running containers in production

• CI/CD experience with GitHub Actions or a similar tool.
• Good Linux and networking fundamentals (VPC design, load balancing, security groups).
• Scripting skills in Python or Bash.

A security-minded approach

• Professional working proficiency in English (we work daily with UK colleagues).
• Serverless and event-driven architectures (Lambda, Step Functions, Kinesis, IoT Core).
• Ansible.

Preferred

• Internal developer platforms, service templates or self-service tooling for dev teams.
• Terraform automation platforms such as env0, Spacelift, or similar
• AWS certifications (Solutions Architect, DevOps Engineer).
• Energy systems, IoT or data-heavy platforms.
• Data analytics platforms (e.g. Databricks, Snowflake or similar).
• Want to build the cloud platform behind batteries and solar plants that help decarbonize the grid? Want to work in a small team where your decisions actually stick? This might be the place.

Benefits

• Flexible working hours (hybrid model with offices in Brno, Brumov-Bylnice, and home office).
• Motivating salary package.
• Quarterly bonuses.
• Exciting Industry Sector which is full of innovations.
• Professional growth, educational support, and team growth opportunities.
• 25 days of vacation and 5 sick days.
• Human-centric approach and team support.
• Opportunity for international training.
• Meal and phone allowance.
• Company events (Czech and Great Britain colleagues).
• Multisport, fruit days.

Tech Stack You'll Touch

Cloud: AWS (ECS Fargate, Lambda, RDS, IoT Core, Kinesis, Step Functions, S3, CloudWatch)