Senior Java Engineer with Kotlin (PST Overlap)
Primary stack
Nice to have's
Job description
About the Position
We are looking for a Senior Java Engineer with Kotlin (PST Overlap) to join our team in a remote role based in Krakow, Poland. Our client is one of the largest game studios known for their successful MOBA and FPS franchises. As a Senior Software Engineer on the Content Access Platform team, you will be part of a group of backend engineers responsible for developing and maintaining a high-throughput transaction engine used by numerous online games, enabling millions of gamers to buy and trade in-game items.
Responsibilities
- Design, code, test Java/Kotlin applications based on SpringBoot ver. 3
- Prepare design docs, implementation strategy, and choose appropriate libraries
- Collaborate within your pod (up to 5 engineers) and with other cross-functional teams
- Create and manage well-documented RESTful APIs in SpringBoot
- Write and execute unit, integration, end-to-end, and load tests, participate in code reviews
- Stay updated with Java advancements and industry trends
- Maintain a build toolkit in Gradle
- Create, modify, and maintain CI/CD pipelines with Docker and Github Actions
- Design database schemas, write MySQL queries, and manage data integrity
- Occasionally deploy infrastructure for the project using Terraform and internal tools
- Monitor system telemetry and set up alerting using Datadog
Requirements
- 5+ years backend development experience
- Bachelor's or higher degree in Computer Science, Software Engineering, or a related field
- Strong modern Java (17+)
- Experience building services with SpringBoot or similar frameworks
- Experience designing REST APIs
- Experience with JPA/Hibernate or strong SQL-first data modeling (e.g., JOOQ)
- Familiarity with testing frameworks (e.g., JUnit) and agile methodologies
- Demonstrated ability to design clean, maintainable backend architectures
- Solid relational database fundamentals
- Comfortable working independently in a remote environment
- Effective communication and teamwork skills
Nice to Have
- Experience with Kotlin
- Experience with event-driven systems (Kinesis, Kafka, etc.)
- Experience with Cloud and Infrastructure solutions with Docker, Terraform, and Kubernetes
- Experience working with Public Cloud, preferably AWS
- Experience with CI/CD pipelines, preferably Github Actions
- Experience with observability and monitoring tools, preferably Datadog
We Offer
- Competitive salary: 26,000–29,000 net / mo
- Work with the best kit: high-spec MacBook, 34" monitor, and home office budget
- Health & Wellbeing: private health insurance and life insurance
- Level Up Your Skills: access to AWS courses and rewards for certifications
About the Company
At Appliscale, we're all about taking care of our team with a range of competitive and inclusive benefits designed to attract and retain top talent. We provide a Multisport Plus card for staying active and support your professional growth with various courses and certifications.
© Appliscale. This job description was sourced from the employer's public career page. TheJob is not the employer — we index the posting and route candidates to the source. All content rights and hiring decisions belong to the employer.
Advertising Technology,Gaming,Venture Capital
About the Company Appliscale is an IT consulting company specializing in Adtech, Cloud, and Scalability solutions. The company has been operating for 11+ years and has shipped over 45 projects. They handle data for more than 4 million concurrent users. Appliscale has partnered with notable companies in digital advertising, gaming, and gambling, such as Verizon Media and Novomatic. Products, Services & Tech Stack Core Solutions: AdTech Infrastructure: Containerized bidders, RTB platforms, attribution and reporting, the engineering behind global programmatic at scale. Game Backends: Multiplayer netcode, leaderboards, anti-cheat, monetization, live-ops analytics, backends that survive a launch weekend. Cloud-Native Platforms: Multi-cloud architectures on AWS and GCP, IaC with Terraform and CloudFormation, CI/CD that engineers trust. Data & Streaming: Stream and batch pipelines moving billions of events. Redshift, Snowflake, Spark, real-time analytics. Agentic AI: AI agents in production, campaign optimization, deal troubleshooting, autonomous workflows with auditable reasoning. Studio & Investments: Operator-led investments in SaaS, AdTech, GameTech. Technologies & Frameworks: Programming Languages: Go, Node.js, Java, TypeScript, Python, C#, Erlang, Elixir Mobile Platforms: iOS, Android Cloud Services: AWS, GCP Infrastructure as Code: Terraform, CloudFormation CI/CD Tools: Not explicitly mentioned Data Platforms: Redshift, Snowflake, Spark Project Scope & Target Clients Client Base: Digital Advertising Gaming Gambling Engineering Scale: Handles billions of impressions a day. Processes over 400 million HTTP events daily. Handles more than 1TB of data. Responsible for massive global MOBA and FPS franchises with millions of concurrent players.