Back End Developer

Company

Formula Recruitment

Location

London Area, United Kingdom

Posted At

8/12/2025

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Description

Backend Engineer

London Hybrid

£80,000-£95,000 + bonus and benefits

We’re working with a rapidly growing tech for good company that is transforming how data, automation, and smart integrations shape the future of digital infrastructure. Their platform optimises real-time operations, connecting users with seamless, intelligent technology solutions.

They are looking for a Senior Backend Engineer with deep expertise in Kotlin (or JVM and willing to step into Kotlin specifically) to help scale and enhance their high-performance systems. This is an opportunity to work with modern backend architecture, collaborating with top-tier engineers in a fast-moving, product-focused environment.

Responsibilities as a Backend Engineer:

Contribute to the businesses technology strategy and architecture
Ship resilient and well tested production code
Collaborate with different teams to deliver value that aligns to business objectives
Mentor and coach more junior members of the team
Continuously evolve and improve the ways of working in the business

Key Requirements:

Strong commercial experience in Kotlin or related JVM technologies for backend development
Confidence to work with Spring Boot or Ktor to build robust microservices
Strong ability to write secure, resilient, and well-tested code
Desire for building API-first products
Deep understanding of software design patterns, SOLID principles, and test-driven development
Experience with Agile methodologies, including peer reviews & pair programming.
Ability to translate business needs into scalable technical solutions

Benefits:

Competitive salary and bonus
Hybrid office
Private Health Insurance
Aegon Pension Scheme
Life Assurance Scheme with death in service benefit of 4x salary
Income Protection Scheme for long-term illness

This is a career-defining Backend Engineer position with the potential to have a massive impact on the technology strategy of a business that is directly shaping the future of intelligent digital infrastructure.