Java Software Engineer (London)

💻 Role: Java Software Engineer / Java Developer

🌍 Location: Central London - hybrid 2 days a week onsite

💰 Salary: £40,000-£55,000

🛠 Key Skills: Core Java/SE, XML, JSON, Junit, APIs, complex/high-traffic systems

A leading global B2B SaaS technology company is seeking Java Developers at all levels (Junior-Mid) to join its London-based team. The company operates a large-scale SaaS platform that supports hundreds of millions of daily transactions, supplying content to major travel agencies, meta search engines, and ecommerce platforms.

You will join a dynamic development team, working on mission-critical systems, backend API development, and integrations with supplier systems. This includes managing high-volume XML integrations, time-sensitive bug fixes, and contributing to innovative new features and products.

Key Responsibilities:

• Develop and maintain robust backend systems in Java (Java 17).
• Work on complex system integrations with third-party suppliers and distributors.
• Handle XML feeds, web scraping, and high-frequency search processing.
• Deliver timely fixes for critical production issues.
• Collaborate on product design and contribute to new functionality.
• Work both independently and in agile teams with shifting priorities.

Required Skills and Experience:

• Java SDK / J2SE programming knowledge.
• Understanding of algorithms, data structures, and object-oriented design patterns.
• Proactive attitude and ability to take ownership of projects.
• Experience working on complex / high-traffic systems.

Desirable Skills:

• Degree in Computer Science, Mathematics, or related STEM discipline.
• Database proficiency (SQL, schema design, JDBC).
• Understanding of network and web technologies ( HTML, XML).
• Familiarity with JavaScript and Node.js is advantageous.
• Ability to write clean, well-documented code and technical documentation.

Benefits:

• Annual performance bonus and salary review.
• Flexible working hours (core hours 10:00–16:00).
• Hybrid work model with 2 office days (Tuesday & Thursday, lunch provided).
• 25 days holiday (rising to 28) + public holidays + option of 25 unpaid days.
• Private healthcare (after 3 months) and life insurance.
• Pension scheme with rising employer contribution.
• Work from anywhere for 4 weeks per year (after one year of service).