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Lead Software Engineer - Cloud and Mainframe Integration

scrumconnect consulting • United Kingdom
Visa Sponsorship Relocation
This Job is No Longer Active This position is no longer accepting applications
AI Summary

Provide technical leadership across multi-disciplinary teams delivering digital services for UK government clients. Set technical direction for hybrid cloud-native and mainframe environments while mentoring engineers and ensuring compliance with security and accessibility standards. Requires hands-on experience with Java, Spring Boot, AWS Serverless, Ruby on Rails, React, and legacy integration patterns.

Key Highlights
Polyglot stack leadership across Java, Spring Boot, AWS Serverless, Ruby on Rails, and React
Hands-on code contributions, architecture decisions, and CI/CD implementation
Mentoring senior and mid-level engineers with a focus on engineering excellence
Experience in UK public-sector delivery with GDS standards compliance
Visa sponsorship available for eligible candidates

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Key Responsibilities
Provide technical leadership across one or more multi-disciplinary teams, setting standards for engineering quality, security and performance
Lead architecture and design decisions across services built in Java Spring Boot, AWS Serverless, and Ruby on Rails with React
Define integration patterns between modern services and Legacy Mainframe systems, supporting incremental modernisation
Remain hands-on with code: contributing to critical paths, conducting code reviews, and pairing with engineers
Own the technical roadmap and non-functional requirements (performance, scalability, observability, security) for assigned services
Mentor and coach senior and mid-level engineers, raising the engineering bar through example and feedback
Lead CI/CD, infrastructure-as-code, and DevSecOps practices using the Serverless framework, AWS-native tooling, and modern pipelines
Collaborate with architects, security, product, and delivery leads to translate user needs into robust technical solutions
Contribute to GDS service assessments and ensure services meet the Service Standard, Technology Code of Practice, and accessibility requirements
Drive technical decision records (ADRs), runbooks, and operational readiness for services entering live support
Technical Skills Required
Java Spring Boot AWS Serverless Lambda Node.js Serverless framework Ruby on Rails React Mainframe integration Infrastructure-as-code Terraform CloudFormation CDK CI/CD DevSecOps Agile delivery Scrum Kanban OWASP Security Accessibility WCAG 2.2 GDS Service Standard GDS Technology Code of Practice

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Benefits & Perks
Competitive salary with annual review
Company pension scheme
Generous annual leave entitlement
Critical illness cover
Relocation support of £3,000 - £5,000
Visa sponsorship for eligible candidates
Access to learning and development resources
Supportive, inclusive working environment

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Nice to Have
Experience leading Legacy modernisation, including strangler-pattern migrations away from Mainframe systems
Experience with event-driven architectures (Kafka, EventBridge, SNS/SQS)
Familiarity with accessibility standards (WCAG 2.2) and inclusive design
Experience supporting services through GDS Alpha, Beta, and Live assessments
Active contribution to engineering communities of practice, open-source projects, or technical writing

Job Description

Job Description

About Scrumconnect Consulting

Scrumconnect Consulting is a multi-award-winning digital consultancy whose work has positively influenced the lives of over 40 million UK citizens. We deliver impactful technology solutions across UK government departments, working at the forefront of user-centred design, agile delivery, and scalable digital services that genuinely make a difference.

  • Visa sponsorship available for eligible candidates
  • Strong focus on work-life balance with a flexible hybrid model (3 days onsite)
  • Be part of a collaborative, multidisciplinary agile environment alongside civil servants and industry experts

Based in Swansea, South Wales - three days per week on-site

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Job Overview
Posted Date Jun 02, 2026
Employment Type Full-time
Experience Level Mid-Senior level
Location United Kingdom
Category Programming
Company scrumconnect consulting

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