Senior Java Developer

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

Role Overview

We are seeking a highly skilled and experienced Java Developer to lead the design, development, and delivery of scalable, secure, and high-performance enterprise applications. The ideal candidate will possess deep expertise in Java and Spring Boot, strong architectural knowledge, and proven experience leading development teams in delivering large-scale digital solutions.

As a technical leader, you will drive engineering best practices, mentor developers, contribute to strategic technology decisions, and collaborate closely with cross-functional stakeholders to ensure successful project delivery.

Key Responsibilities

Technical Leadership

• Lead the design, development, and maintenance of enterprise-grade backend applications using Java (8/11/17+) and Spring Boot.
• Define and drive technical architecture, coding standards, and development best practices.
• Provide technical guidance and mentorship to development teams.
• Conduct code reviews and ensure high-quality, maintainable, and secure code.
• Collaborate with Solution Architects and Engineering Managers on technology roadmaps and architectural decisions.

Application Development

• Design and implement RESTful APIs and microservices-based solutions.
• Develop scalable, resilient, and high-performing backend services.
• Integrate with internal and external systems through APIs, messaging platforms, and event-driven architectures.
• Ensure compliance with security, performance, and reliability requirements.

Architecture & Design

• Participate in system architecture, technical design discussions, and solution planning.
• Drive cloud-native development practices and modernization initiatives.
• Identify and mitigate technical risks and performance bottlenecks.
• Ensure scalability, maintainability, and extensibility of software solutions.

DevOps & Delivery

• Support and enhance CI/CD pipelines and automated deployment processes.
• Collaborate with DevOps teams to implement containerized and cloud-based solutions.
• Contribute to Infrastructure as Code (IaC) initiatives using tools such as Terraform.
• Participate in release planning, production deployments, and incident management.

Stakeholder Collaboration

• Work closely with Product Owners, Business Analysts, Architects, QA, and DevOps teams.
• Translate business requirements into technical solutions.
• Communicate technical concepts effectively to both technical and non-technical stakeholders.

Required Skills & Qualifications

Technical Skills

• 8+ years of hands-on software development experience with Java.
• Strong expertise in Java and Spring Boot frameworks.
• Extensive experience designing and implementing microservices architectures.
• Strong knowledge of RESTful API design and integration.
• Experience with Hibernate, JPA, and ORM frameworks.
• Hands-on experience with messaging technologies such as Kafka or RabbitMQ.
• Experience with cloud platforms including AWS, Azure, or GCP.
• Strong experience with Docker and Kubernetes.
• Proficiency with relational and NoSQL databases such as PostgreSQL, MySQL, MongoDB, or similar.
• Deep understanding of application security, authentication, authorization, and secure coding practices.
• Experience with performance tuning, monitoring, and troubleshooting distributed systems.
• Strong knowledge of Git, branching strategies, and Agile/Scrum methodologies.

Leadership Experience

• Proven experience leading development teams and delivering complex enterprise projects.
• Ability to mentor developers and foster technical excellence.
• Experience managing technical deliverables, estimations, and development planning.

Preferred Qualifications

• Experience working within regulated, standards-driven, or public sector environments (e.g., GDS-aligned projects).
• Experience implementing cloud-native architectures and event-driven systems.
• Familiarity with Infrastructure as Code tools such as Terraform or CloudFormation.
• Experience with observability and monitoring tools such as ELK, Grafana, Prometheus, or Splunk.
• Relevant Java, AWS, Azure, GCP, Kubernetes, or architecture certifications.
• Experience with Domain-Driven Design (DDD) and API-first development approaches.

Soft Skills

• Strong leadership and decision-making capabilities.
• Excellent analytical and problem-solving skills.
• Effective communication and stakeholder management abilities.
• Strong collaboration and team-building mindset.
• Ability to balance technical excellence with business objectives.
• Self-motivated with the ability to work independently and lead distributed teams.

Nice to Have

• Experience in digital transformation programs.
• Exposure to government, healthcare, banking, or other highly regulated industries.
• Experience leading geographically distributed development teams.
• Knowledge of AI-assisted development tools and modern software engineering practices.