Senior Backend Engineer (100% remote)

You will work on backend and cloud solutions with a strong focus on Kotlin and AWS, contributing not only to application development but also to architecture, deployment and infrastructure.

We are looking for someone comfortable taking ownership, working independently and navigating an existing codebase while continuously improving its quality.

100% remote

• Dedicated Agent support – your go-to person for project continuity, client communication, day-to-day administration, and long-term professional development
• Access to Darize Learning & Development – our internal development platform featuring webinars, industry reports and articles, access to learning platforms such as DataCamp and Coursera, and regular invitations to technical, business, and lifestyle events
• Community and networking events – from Kick-Off trips, Christmas celebrations, and Summer Sport Games to family picnics and cultural events for you and your loved ones
• Consultant Development Program – personalized professional development support based on current industry trends and market needs, delivered by experienced mentors and development advisors
• Comprehensive benefits package – including private healthcare, life insurance, a sports card for you and your family members, as well as access to employee discounts in Poland and abroad
• A community of experienced IT experts – exchange knowledge and collaborate with technology professionals who bring years of hands-on experience delivering complex technology projects (the average professional experience of our consultants in Poland exceeds 10 years)

Zakres obowiązków

• Design, develop and maintain backend services using Kotlin and Spring
• Build and evolve cloud-native solutions on AWS.
• Contribute to cloud architecture, deployment and Infrastructure as Code.
• Develop and maintain AWS infrastructure using AWS CDK and TypeScript.
• Work with AWS services including Lambda, ECS, CodePipeline, CloudFront, S3, ACM, Secrets Manager, CloudWatch, DynamoDB and Glue.
• Maintain high engineering standards through clean code, design patterns and software development best practices.
• Develop and maintain unit, integration and end-to-end tests.
• Understand, maintain and refactor existing and legacy code.
• Contribute to CI/CD, observability and reliable software delivery.
• Collaborate with engineers and stakeholders in a mature enterprise product environment.

Wymagania

• 5+ years of professional backend/software engineering experience.
• Strong commercial experience with Kotlin, ideally with Spring.
• Strong hands-on experience with AWS and cloud-based architectures.
• Practical knowledge of AWS CDK and TypeScript.
• Experience designing and deploying cloud solutions.
• Solid understanding of Infrastructure as Code.
• Strong knowledge of clean code principles, design patterns and software engineering best practices.
• Experience with unit, integration and E2E testing.
• Confidence working with and refactoring legacy code.
• Ability to work autonomously and take ownership of technical solutions.
• Experience working in mature product or enterprise engineering environments.

Tech stack

• Kotlin
• Spring
• AWS
• Java
• Docker
• Node.js
• Kafka
• Python
• Terraform
• MySQL
• Spring Boot