Remote Scala Backend Engineer — Scalable API Expert

Stealth iT Consulting; Hemel Hempstead; Remote; GBP 60,000 - 90,000; Full time

Job summary

Stealth iT Consulting in the United Kingdom is seeking a talented Scala Developer to join the engineering team and contribute to the design and development of scalable, high‑performance applications. You will work on modern distributed systems, build APIs, and collaborate with cross‑functional teams to deliver enterprise‑grade solutions.

You will design and implement backend services with Scala and Play Framework, participate in code reviews, and contribute to testing, CI/CD, and reliable

Qualifications

• 3+ years of professional Scala experience.
• 2+ years with Play Framework.
• Experience designing RESTful APIs and JSON handling.
• Solid FP concepts (immutability, monads); Cats/Scalaz familiarity a plus.
• Experience with relational databases (PostgreSQL) or NoSQL (MongoDB).
• Experience with unit/integration testing.

Responsibilities

• Design, develop and maintain backend services and APIs using Scala and Play Framework.
• Implement RESTful endpoints, manage request/response lifecycle, and handle auth flows.
• Write idiomatic Scala and apply functional programming patterns.
• Build and maintain automated tests and support test automation.
• Collaborate in an Agile environment and participate in code reviews.
• Contribute to CI/CD pipelines and deployment processes.
• Produce technical documentation and handover notes.

Skills

Scala

Play Framework

REST APIs

Functional programming

Unit testing

CI/CD

Agile/Scrum

Git

PostgreSQL

MongoDB

Tools

SBT

Job description

Scala Developer - UK/Remote

My client are seeking a talented Scala Developer to join their engineering team and contribute to the design and development of scalable, high‑performance applications. This role involves working on modern distributed systems, building APIs, and collaborating with cross‑functional teams to deliver enterprise‑grade solutions.

Key responsibilities:

• Design, develop and maintain backend services and APIs using Scala and Play Framework.
• Implement RESTful endpoints, manage request/response lifecycle, and handle authentication/authorization flows.
• Write well-structured, idiomatic Scala and use functional programming patterns where appropriate.
• Build and maintain automated tests (unit, integration), and support test automation efforts.
• Collaborate with product owners, UX, QA, and other engineers in an Agile environment (Scrum/Kanban).
• Participate in code reviews, architecture discussions and pair programming.
• Troubleshoot and resolve production issues; contribute to reliability and observability (logging, metrics, alerts).
• Help define CI/CD pipelines and deployment processes (e.g., Jenkins/GitHub Actions/Concourse).
• Produce concise technical documentation and handover notes.

Must-have skills & experience:

• Strong professional experience with Scala (minimum 3+ years).
• Hands-on experience with Play Framework (2+ years) — building controllers, routing, forms, and HTTP filters.
• Solid understanding of functional programming concepts and idiomatic Scala (e.g., immutability, monads, cats/Scalaz familiarity advantageous).
• Experience designing and consuming REST APIs, JSON validation/serialization (Play JSON, Circe).
• Experience with relational databases (PostgreSQL) and/or NoSQL (MongoDB), including schema design and query optimisation.
• Proven experience writing unit and integration tests (ScalaTest, Specs2, Mockito, etc.).
• Familiarity with build tools (sbt) and dependency management.
• Experience with Git and branching strategies.
• Good understanding of HTTP, web security best practices, and performance considerations.
• Experience working in Agile teams and participating in ceremonies.