Back End Software Developer (Permanent)

TechHeads is working with a global cybersecurity powerhouse to hire a skilled Back-End Software Engineer for their growing London-based team. This is a permanent, full-time role, fully onsite in London, giving you the opportunity to be hands-on with critical systems at the heart of a secure, global platform.

In this role, you’ll design and maintain high-performance backend services that directly power next-generation cybersecurity solutions. With a focus on clean architecture, resilient systems, and robust infrastructure, your work will support mission-critical applications used by enterprises worldwide.

You’ll work with a cutting-edge stack including Java and Spring Boot, applying DevOps practices and automation to deliver reliable, secure software at scale. Whether enhancing core functionality or contributing to new services, you’ll be solving real-world problems with real-world impact.

This is a chance to join a technically driven engineering team that values precision, clarity, and accountability. You’ll engage in complex, meaningful work where your technical decisions directly contribute to global data protection and security.

If you’re looking for a role where you can apply deep backend expertise to problems that matter, within a technically mature and driven environment, this opportunity could be your next move.

• Design, develop, and maintain Java-based backend services using Spring Boot, REST/GraphQL, Kafka, PostgreSQL, and RabbitMQ.
• Contribute to infrastructure modernisation efforts, working closely with DevOps teams on Kubernetes, CI/CD pipelines, and legacy system migrations.
• Innovate across the stack, taking ownership of key projects and delivering performant, scalable solutions.
• Lead engineering best practices including coding standards, unit testing, code reviews, and system architecture discussions.
• Support, coach, and mentor junior developers, fostering a culture of technical excellence and collaboration.
• Work closely with cross-functional teams, including product and engineering groups in different countries/regions, to ensure alignment and execution.
• Build and deploy secure, resilient APIs (REST/GraphQL) and optimise the full software development lifecycle through automation.

• ~7+ years of professional experience in software engineering, with a strong focus on Java backend development.
• ~ Solid understanding of Spring Boot, Kafka, RabbitMQ, PostgreSQL, and modern API design patterns.
• ~ Hands-on experience or familiarity with DevOps tools and concepts – e.g. Kubernetes, Git-based CI/CD, cloud infrastructure (AWS/GCP/Azure).
• ~ Strong grasp of software security principles, system performance optimisation, and infrastructure reliability.
• ~ Experience working on large-scale, production-grade systems with distributed architectures.

• ~ Exposure to tools like Elasticsearch/Kibana, Hadoop/HBase, OpenSearch, or VPN/proxy architectures.

• Bring technical vision, initiative, and a passion for exploring and implementing emerging technologies.
• Be a natural technical leader with experience mentoring engineers and driving engineering quality across teams.
• Enjoy solving complex problems and have a product mindset with an eye toward continuous improvement.

Salary: £100,000 - £120,000 DOE

Benefits: Equity, Healthcare and More

If you would like to be considered for this position, please share a copy of your updated CV to thomas@techheads.ie