Scala Engineer

Job Description

Company Context: The role is within a British multinational enterprise software company focused on building high-performance, scalable backend systems.

Role Overview

The Scala Engineer will be responsible for designing, developing, and maintaining robust backend services using Scala and a Pekko-based Play Framework. The position requires a strong emphasis on functional programming principles, immutability, and writing clean, testable code. The engineer will work on optimizing distributed architectures and solving complex data challenges within a modern functional technology stack.

Core Responsibilities

• Backend Service Development: Designing and maintaining scalable backend services using Scala and the Pekko-based Play Framework, focusing on functional programming principles.
• Database Optimization: Profiling SQL queries, implementing indexing strategies, and refining queries to enhance database performance on MySQL and Redis.
• Cloud-Native Application Management: Deploying and managing applications within the AWS ecosystem, utilizing services such as EC2, RDS, S3, and Lambda.
• Monitoring and Observability: Building and configuring dashboards and alerts using Grafana and Kibana to ensure system reliability and performance.
• Collaboration and Deployment: Working within a structured CI/CD pipeline and Git-based pull request workflow to ensure smooth and automated deployments.

Technical Environment

• Programming Language: Scala 2.13
• Framework: Play Framework (Pekko-based)
• Databases: MySQL, Redis
• Infrastructure: AWS Services (including EC2, RDS, S3, Lambda)
• Monitoring Tools: Grafana, Kibana
• Version Control and Deployment: Git, CI/CD pipelines

Technical Requirements

• Mastery of Scala standard library, including collections, Futures for concurrency, and pattern matching.
• Strong proficiency in SQL with the ability to explain execution plans and optimize slow queries.
• Hands-on experience with core AWS services.
• Solid understanding of version control (Git) and automated deployment flows.

Additional Preferred Skills

• Experience with functional persistence libraries such as Doobie or Squeryl.
• Familiarity with observability tools, specifically building Grafana and Kibana dashboards and configuring alerts.
• Direct experience with horizontal scaling and managing state in large-scale distributed Pekko systems.