Ruby on Rails Developer

OCU; Preston; On-site; GBP 60,000 - 90,000; Full time

Job summary

OCU is seeking a Lead Software Developer to join their digital team in Preston. This role involves leading the development of OCU One, a bespoke workforce management platform, and mentoring other developers. Ideal candidates will have strong Ruby on Rails experience and a proven track record in software development.

Qualifications

• Professional software development experience at Lead Developer level.
• Strong experience with Ruby on Rails in a production environment.
• Expertise in SQL-based databases like PostgreSQL or MySQL.

Responsibilities

• Take ownership of key system components and influence architectural decisions.
• Lead development best practices and mentor other developers.
• Ensure the platform remains scalable, performant, and aligned with business goals.

Skills

Ruby on Rails

SQL

Git

Problem-solving

Mentoring

Containerisation

CI/CD

Mobile Development

Job description

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OCU Group are looking for an experienced Ruby on the rails Lead Software Developer to join our growing digital team and play a central role in the development of OCU One, our in-house, bespoke workforce management platform. This is an exciting opportunity to shape the technology that powers the planning and execution of complex Energy Transition, Utilities and Digital Infrastructure projects across the UK.

Role Overview

Working closely with the Platform Manager, you’ll take ownership of key system components, influence architectural decisions, and lead development best practices. You’ll be a technical authority across the platform, regularly mentoring other developers and ensuring OCU One remains scalable, performant, and aligned with business goals.

This is a rare opportunity to contribute to meaningful, lasting change in a fast-paced, scaling business. As we continue to invest in digital innovation across the group, your work will directly enable our teams to deliver better, faster, and more safely shaping the future of workforce delivery in one of the UK’s most critical infrastructure sectors.

Key Skills & Experience

• Experience of professional software development experience, currently operating at Lead Developer or equivalent level.
• Strong development experience with Ruby on Rails in a production environment.
• Expertise in working with SQL-based databases (e.g., PostgreSQL, MySQL).
• Skilled in version control and collaboration using Git and GitHub (or equivalent Git-based platforms).
• Proven track record of leading development projects, mentoring others, and delivering high-quality systems at scale.
• Excellent problem-solving skills and the ability to design for performance, reliability, and maintainability.
• Experience in Flutter or mobile application development (iOS and/or Android).
• Exposure to containerisation and deployment technologies such as Docker and Kubernetes.
• Familiarity with CI/CD pipelines, monitoring/logging frameworks, and cloud-native development.
• Background in field-service, construction, or workforce management platforms.
• Experience working on in-house developed platforms or enterprise software

Company Information:

OCU leads the way in end-to-end infrastructure engineering in the utilities, digital, and energy markets, specialising in safely and efficiently delivering complex client requirements. Our breadth of capabilities and depth of operational capacity, paired with our cutting-edge technology, ensure that we are not just part of the market; we are leading it.

Working directly with many of the country’s leading power, energy transition, water, telecoms and digital clients, we are looking for the very best talent to join our growing team.

Seniority level

• Seniority level

  Mid-Senior level

Employment type

• Employment type

  Full-time

Job function

• Job function

  Information Technology

• Industries

  Utilities

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