DevOps Engineer Warsaw, Poland · Full time

Sensor Tower; Warszawa; On-site; PLN 120,000 - 190,000; Full time

Job summary

Sensor Tower is seeking a DevOps engineer with a software development background in Warsaw to own and evolve a performant CI/CD stack, improving developer productivity and build reliability.

You will collaborate with a global engineering team to automate tooling, monitor systems, and ensure scalable deployment pipelines across cloud services, containers, and microservices, delivering fast, robust software for our digital intelligence platform.

Qualifications

• Solid background in Linux and systems administration.
• Experience in CI/CD stack development and maintenance.
• Working proficiency with Ruby, JavaScript or Python.
• Knowledge of AWS technologies (EC2, load balancing, auto-scaling, IAM, S3, Route53).
• Telemetry and monitoring experience (OpenTelemetry, Grafana, Kibana).
• Experience with containerization (Docker, Kubernetes).

Responsibilities

• Collaborate with engineering to improve developer productivity and tooling.
• Maintain a strong connection to the product and contribute to feature development.
• Own the CI/CD stack, ensuring reliability, observability, and performance.
• Research, implement, and develop tooling to help developers write code.
• Ensure CI/CD infrastructure and processes are reliable and consistent.

Skills

Linux

CI/CD

Ruby

JavaScript

Python

AWS

Telemetry

Monitoring

Docker

Kubernetes

Tools

Jenkins

TeamCity

Ansible

Terraform

MongoDB

ClickHouse

Job description

Sensor Tower’s digital intelligence platform provides unparalleled insight into market trends, advertising, competitor’s strategies, and consumer/user audience across mobile, web, and gaming. Sensor Tower’s insights are trusted by more than 2,500 enterprises worldwide across tech, retail/commerce, entertainment/media, gaming, consumer packaged goods, finance, and investment.

Who You Are

You are a DevOps engineer with software development background who likes working on everything that helps to improve the quality of life for your team and providing your expertise in creating a performant CI/CD stack to boost the code development/build process.

What You’ll Do

• Collaborate closely with our engineering team to help them be more productive by improving development tools.
• Maintain a strong connection to the product and remain comfortable engaging in direct feature development
• You will take ownership of CI/CD stack, keeping it robust, observable, stable, and performant.
• Research, implement, and develop tools to help developers write new code.
• Ensure the CI/CD infrastructure and process is reliable and consistent.

What we’re looking for

• Solid background in Linux.
• Experience in CI/CD stack development and maintenance.
• Working proficiency with Ruby, Javascript or Python.
• Knowledge of AWS technologies (EC2, load balancing, auto-scaling, IAM, S3, Route53, etc.).
• Telemetry and monitoring experience (OpenTelemetry, Grafana, Kibana).
• Experience with containerization (Docker, Kubernetes, etc).

What we’d be particularly excited about

• Experience with CI build time optimization especially with Jenkins, Rspec and Cypress/Playwright.
• Familiarity with databases like MongoDB and/or ClickHouse.
• Experience with build systems like Webpack, Gradle, etc.
• Proficiency with the CI tools like Jenkins, TeamCity, etc.

What you’ll learn:

• You’ll learn about the Ruby language and the Rails framework since it’s used in many aspects of our projects and tools.
• You’ll gain deep insights into infrastructure automation using technologies such as Ansible and Terraform since they are central to our deployment strategies.

Blog Posts

Read more about some of our Technical challenges here (written by members of our engineering team): https://sensortower.com/blog/how-we-scaled-to-thousands-of-sidekiq-workers

About Sensor Tower

Sensor Tower is a global provider of digital intelligence solutions, empowering companies to understand consumer behavior and market performance across mobile apps, digital platforms, and gaming ecosystems. Headquartered in San Francisco, Sensor Tower's insights are trusted by more than 2,500 enterprises worldwide.

Founded in 2013, Sensor Tower’s market insights have helped marketers, app developers, and gaming leaders demystify the mobile app ecosystem with visibility into usage, engagement, and paid acquisition strategies. Today, Sensor Tower’s digital market insights platform has expanded to include Gaming, Web, Audience, and Digital Advertising Insights, helping global leaders understand market trends and their competitor’s strategies and audiences across the entire digital ecosystem.

Why Sensor Tower?

Our flexible work environment allows employees to live in greater connection with the people, places, and activities they love!

Global Teams

Sensor Tower has a global presence, with teams across the world and available in most time zones, including North America, Europe, Middle East, Africa, APAC and LATAM. We maintain regional offices in SF, LA, NY, London, Singapore, Beijing, Seoul, Tokyo and Vancouver.

We are committed to equal employment opportunities regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, and veteran status. We will consider qualified applicants with arrest and conviction records. If you have a disability or special need, please do not hesitate to let us know and we'll do our best to accommodate.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.