Back End Developer

JR United Kingdom; Slough; Remote; GBP 60,000 - 80,000; Full time

Job summary

A technology company is seeking a skilled Backend Engineer with strong experience in Reactive Java. This remote role involves designing and maintaining backend services and collaborating on data-related tasks. Ideal candidates will have over 4 years of experience and a solid understanding of design patterns. The position offers potential for extension beyond April/May 2026.

Qualifications

• 4+ years of professional backend engineering experience.
• Strong expertise in Reactive Java.
• Familiarity with backend/data-focused systems.

Responsibilities

• Design, develop, and maintain backend services using Reactive Java.
• Collaborate with the team on data-related engineering tasks.
• Contribute to clean, scalable, and maintainable solutions.

Skills

Backend engineering

Reactive Java

Design patterns

Collaboration

Tools

Rust

PostgreSQL

Databricks

Job description

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Location: UK (Remote)

Duration: ASAP start – at least April/May 2026 (potential to extend)

About the Role:

We are seeking a skilled Backend Engineer with strong experience in Reactive Java to join our team. The role is backend/data-focused, contributing to current and upcoming projects under an existing SOW.

Key Responsibilities:

• Design, develop, and maintain backend services using Reactive Java.
• Collaborate with the team on data-related engineering tasks.
• Contribute to clean, scalable, and maintainable solutions.
• Apply best practices around design patterns, particularly the Observer pattern (bonus).

Skills & Experience:

• 4+ years of professional backend engineering experience.
• Strong expertise in Reactive Java.
• Exposure to Rust, PostgreSQL, and Databricks is a plus.
• Familiarity with backend/data-focused systems.
• Knowledge of design patterns (Observer pattern a real advantage).