Remote job
Senior Java Engineer - Flix Train Operations Management System
Flix
Job briefing
Read from the posting and checked against our job index
- Apply from
- Poland
- Work model
- Remote
- Salary
- Not stated
- Level
- Senior
Your tasks
- Build internal products that automate and streamline operational processes
- Explore operational challenges and contribute to architectural decisions
- Design new products and regularly release updates to existing ones
- Ensure quality through solid testing, continuous integration, and automation
- Share knowledge and provide technical guidance through code reviews
- Java
- Spring Boot
- Kafka
- MySQL
- MongoDB
- AWS
- Docker
- GitLab CI
- Kubernetes
- Terraform
What they expect
Required skills
- At least 7 years of professional Java experience
- Strong experience building distributed systems with Spring Boot
- Experience with relational and NoSQL databases and caching solutions
- Experience with event-driven architectures and messaging services
- Hands-on experience with AWS, Docker, Kubernetes, GitLab CI, Terraform, and Datadog
- Upper-intermediate English or higher and experience working in an Agile setup
Mindset
- Curiosity about the business and willingness to take part in discovery and problem framing
- Comfort navigating ambiguity
- Interest in working with distributed teams
Good to know
- Listed with us since
- November 10, 2026
- Employer
- 66 more open roles at Flix in our index. Of these, 4 fully remote. See remote jobs at Flix
Before you apply
These terms appear word for word in the posting. If you have these skills, they belong in your CV too.
- 7+ years of professional experience with Java
- distributed systems using Spring Boot
- event-driven architectures
- Hands-on experience with AWS services
- GitLab CI
- Agile setup
Generated automatically by nomado24 from the posting and our index. Not an employer statement. The original posting is authoritative.
Job description
89-119 PLN/hour
We are looking for a skilled Senior Java Engineer for service agreement collaboration (B2B contract) to cooperate with a team that focuses on automating and streamlining FlixTrain’s operational processes, creating internal tools that help teams manage a growing and increasingly modern fleet. The team works in a collaborative, pragmatic, low-bureaucracy way.
Scope of services
This engagement sits in a greenfield environment, where many systems are designed and built from scratch. Engineers are actively involved throughout the entire lifecycle: understanding operational challenges, contributing to architectural decisions, and ensuring high quality through solid testing practices. We value engineers who are curious about the business, eager to participate in discovery and problem framing, and comfortable navigating ambiguity.
About the Engagement
- Collaborate with a self-organized, cross-functional distributed team responsible for a set of products, contributing directly to the success of the business
- Place our users at the center when developing solutions together with the team
- Contribute to the development process within an Agile environment
- Design new products from scratch and frequently deliver new versions of existing products, using continuous integration and automation
- Work with cutting-edge technologies and tools
- Contribute to technical decisions inside and across teams to improve technical excellence
- Share knowledge and provide technical guidance through code reviews and close collaboration
- Our tech stack: Java, Spring/Spring Boot, Kafka, MySQL (RDS), MongoDB (DocumentDB), AWS, Docker, GitLab CI, Kubernetes, Terraform, Datadog
About You
- 7+ years of professional experience with Java
- Strong experience developing distributed systems using Spring Boot
- Experience with relational (MySQL, PostgreSQL, RDS) and NoSQL databases (MongoDB, DocumentDB)
- Experience with caching solutions such as Redis, ElastiСache
- Experience with event-driven architectures and messaging services like Kafka/SQS/SNS/RabbitMQ
- Hands-on experience with AWS services (e.g. RDS, S3, EC2)
- Experience with DevOps and infrastructure technologies, including Docker, Kubernetes, GitLab CI, Terraform, and Datadog
- Upper-intermediate level of English or higher
- Experience working within an Agile setup
Nice to have:
- Data Engineering skills: ETL, Snowflake, etc.
- Experience working with distributed teams
Collaboration model
- Contract type: Cooperation based on a service agreement (B2B/freelance contract), not an employment contract
- Working model: Independent contractor responsible for delivering agreed services and submitting invoices
This role is provided by an external source. Applications are handled on the source website.