Senior Scala Engineer

EPAM is seeking a Senior Scala Engineer to join the Experimentation & Experience Controls team building a high-scale, in-house A/B testing and Feature Flagging platform for one of the world's most iconic entertainment and media companies — a global leader in streaming, entertainment brands, and digital experiences reaching hundreds of millions of users worldwide. The platform is capable of serving millions of concurrent requests with single-digit millisecond response times, and its scope extends across the client's entire portfolio of streaming products and entertainment brands. You will be a key part of an engaging, dynamic, and inclusive engineering organisation, grounded in Scrum and Agile practices, CI/CD, close collaboration, and a commitment to continuous learning and improvement. Responsibilities Lead a significant part of the implementation, design, testing, and deployment of services running in a multi-region cloud environment Ensure quality and high standards for feature development through automated testing and code reviews, setting examples for others to follow Work with the Lead Engineer in partnership with Product and Project Management to influence roadmap and architectural decisions within the team Support Agile practices within the squad, actively contributing to ceremonies such as standup and planning Mentor less experienced engineers to help them improve their technical abilities and build their profiles within and outside the organisation Contribute to an inclusive culture that values learning, close collaboration, and strives for excellence Requirements Strong understanding of high-quality coding, testing, and development practices Experience in a JVM language such as Java, Scala, or Kotlin (the team primarily uses Scala with functional programming principles and frameworks such as Cats Effect and ZIO — willingness to learn Scala is welcome) Familiarity designing, building, and operating distributed systems with multi-level failover and fallback strategies Familiarity with at least one major cloud provider: AWS, GCP, or Azure Familiarity with Terraform or other infrastructure-as-code (IaC) tooling Strong communication skills — ability to understand, frame, and simplify both technical and business requirements Experience mentoring and coaching engineers on technical and soft skills Nice to have Experience building micro/web services — including REST and GraphQL Experience or interest in functional programming and its real-world applications — particularly Scala stacks such as Cats Effect and ZIO Experience with relational and NoSQL databases, particularly PostgreSQL, Aurora, and DynamoDB — including data modelling and query performance optimisation Experience with Kinesis, Kafka, or other streaming data technologies Familiarity with data warehouse, pipeline, and analytics platforms such as Databricks or Snowflake Background in high-traffic, low-latency systems serving millions of concurrent users Experience working in the entertainment, media, or streaming domain We offer We gather like-minded people:Top tech minds driving innovation in AI, cloud and digital platform modernizationSupportive team and agile, startup-like cultureHybrid by design mode and opportunity to work remotely within PolandChance to work abroad for up to 60 days annuallyBusiness-driven relocation opportunitiesWe provide growth opportunities:Career development programsThought leadership, mentoring, soft skills and well-being programsCertification (Anthropic, Gemini, GCP, Azure, AWS)English classesWe cover it all:Stable payParticipation in the Employee Stock Purchase Plan with a 15% discountBenefits package (health insurance, multisport, shopping vouchers)Referral bonuses up to $2,000Offices featuring entertainment and relaxation zones, table tennis and football, free snacks, coffee and moreCorporate, social and well-being eventsPlease, note:Benefits listed above are available to employees onlyWe are open for working with Contractors. Terms of B2B cooperation agreements are agreed individuallyWe will reach out to selected candidates exclusively EPAM is global leader in AI transformation engineering and integrated consulting, serving Forbes Global 2000 companies and ambitious startups. With over thirty years of expertise in custom software, product and platform engineering, we empower our clients to become AI-Native enterprises, driving measurable value from innovation and digital investments.