Senior Java Developer

🕒 May 22

🏢🏡 London – Hybrid

💵 £70k - £80k / year

⏰ Full Time

🟠 Senior

🔙 Backend Engineer

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Xantura Limited

WebsiteLinkedInAll Job Openings

11 - 50 employees

Founded 2008

🤖 Artificial Intelligence

☁️ SaaS

🏛️ Government

Artificial Intelligence • SaaS • Government

Xantura Limited is a UK-based technology company that provides a cloud-based data-sharing and analytics platform called OneView for public sector organisations. It uses advanced analytics and responsible, transparent AI to join up data across local authority and public service agencies to create holistic views of individuals, families and groups, enabling early intervention and prevention across children's services, adult health and social care, homelessness, debt and community safety. The platform is focused on improving outcomes for vulnerable residents, increasing practitioner productivity and delivering cost savings while emphasising ethical and proportionate use of data and AI.

📋 Description

• Design, develop, maintain, and support Java-based backend systems and services • Develop scalable and performant solutions for data acquisition, processing, matching, analytics, and integration workloads • Create and maintain high-quality SQL queries, stored procedures, and database structures • Contribute to technical architecture discussions and platform evolution Improve system performance, scalability, resilience, monitoring, and operational reliability. • Write clean, maintainable, well-tested code following agreed engineering standards and best practices • Participate in peer reviews, technical design reviews, and collaborative problem solving • Support and improve CI/CD pipelines and automated deployment processes using Azure DevOps • Investigate and resolve complex production issues, system failures, and performance bottlenecks • Support and troubleshoot services running in Linux-based environments. • Work closely with infrastructure and platform teams to optimise Linux-hosted services and deployments • Collaborate with QA teams to ensure robust testing and adherence to Definition of Done standards • Mentor and support junior and mid-level developers within the team • Contribute to continuous improvement of development processes, documentation, tooling, and engineering discipline • Support the migration and modernisation of legacy systems and services into Azure-hosted solutions

🎯 Requirements

• A degree in Computer Science, Software Engineering, or a related technical discipline, or equivalent practical experience • Strong commercial experience developing enterprise applications using Java • Excellent technical knowledge of: • - Java 17+ • - SQL and relational database design • - REST API development • - Maven • - Concurrent and asynchronous processing • - Performance optimisation and troubleshooting • - JUnit and automated testing approaches • Strong working knowledge of Linux environments, including command-line tools, scripting, process management, logging, and troubleshooting • Experience deploying, configuring, and supporting Java applications within Linux-based environments. • Experience working with high-volume or data-intensive systems • Experience working with CI/CD pipelines and source control workflows • Experience using Azure DevOps or similar development lifecycle tooling • Strong understanding of software engineering principles, clean code practices, and maintainable application design • Strong analytical and problem-solving skills • Good communication and collaboration skills, with the ability to work effectively within multi-disciplinary teams • A proactive mindset with strong ownership, accountability, and continuous improvement focus • Bonus points if you have: • Experience working within Microsoft Azure environments • Experience with data engineering or data warehousing platforms • Experience working with distributed systems or event-driven architectures • Experience with monitoring and observability tooling • Experience working within Agile/SCRUM teams • Experience improving engineering governance, development processes, and QA practices • Experience supporting or modernising legacy enterprise applications • Knowledge of security, compliance, and operational best practices within enterprise environments

🏖️ Benefits

• Competitive salary reviewed annually • Work for a passionate, mission-driven company solving society’s big problems • Work flexible hours around life commitments with a focus on delivering company value rather than hours worked • Ability to work remotely (excluding face-to-face Team Meetings and client meetings) • Training and development opportunities • 25 days annual leave (plus bank holidays) • Company pension • Private medical insurance • Generous enhanced parental leave policies • Cycle to work scheme • Flu Vaccinations • Eye Test and contribution towards Glasses for VDU use • Employee Assistance Programme • Mental health and wellbeing support • Remote GP access • Counselling/therapy • Physiotherapy • Medical second opinions