Salary: £45,000 - 60,000 per year Requirements: Strong understanding of integration concepts, REST/SOAP APIs, and data mapping Experience with various data formats including XML, JSON, and SQL Proven experience in enterprise systems development Proficiency in programming languages such as Java, C#, or Python Strong knowledge of database management systems (SQL, Oracle, etc.) Experience with web technologies (HTML, CSS, JavaScript, etc.) Experience with developing and maintaining code and configuration changes within SaaS systems Proficient with API protocols, strong root cause analysis for integration issues including POSTMAN testing and debugging Familiarity with cloud platforms (AWS, Azure, etc.) Experience with Boomi integration, IFS, Dayforce, and ProFinda (training can be given) Excellent problem-solving and analytical skills Strong communication and teamwork abilities Experience with enterprise resource planning (ERP) systems Eligible to achieve SC clearance; must be a British Citizen and have resided in the U.K. for the last 5 years Responsibilities: Design, develop and maintain scalable enterprise systems and applications Understand interface source and target data design, along with impacts to the Boomi integrations Troubleshoot and resolve functional and technical issues within source and target systems, related to integrations and data flows Collaborate with project team members and business stakeholders to understand and translate requirements, documenting them in a technical specification Plan and implement new deployments and planned outages Develop documentation for support of analysis, technical design, coding, configuration, testing, and processes Identify and mitigate risks associated with enterprise systems, applications and integrations, ensuring compliance with regulatory requirements and security standards Technologies: API AWS Azure C# Cloud CSS ERP Support JSON Java JavaScript Oracle Postman Python REST SOAP SQL Security Web XML More: We are a defense technology consultancy located in Southampton, offering a hybrid working pattern with two days a week onsite. We provide a collaborative environment where our Enterprise Systems Developer will play a critical role in developing our internal enterprise systems. Our team values motivation, technical skill, and an innovative approach to problem-solving, and we are committed to supporting your professional growth and development. last updated 4 week of 2026