Java jobs in Hertfordshire

You will work across cutting‑edge platforms including Payment Networks, Digital Banking, Emerging Payments, and highly scalable data and analytics environments built on Google Cloud Platform, Data Lakes and Power BI. This role involves modern engineering, integration, testing, and hands‑on development within a high‑impact digital landscape.

Our client, a mission-led consultancy, is looking for an experienced Principal Software Engineer (Java) to join their growing team. They deliver secure, modern software solutions to the UK Government and Defence sectors, enabling clients to build scalable systems and progressive web applications that drive real impact. This is a senior-level opportunity for a hands-on engineer who enjoys leading...

· High-energy, detail-oriented, proactive and able to function independently under pressure. · WebLogic, Web Sphere/JBoss · Expert in Java, J2EE, Web Services (REST, SOAP), API Gateway, Integration patterns, Security standards, Spring boot, Spring MVC, Spring 4.0,Hibernate/JPA, concurrency and threading, Collections · Web application related technologies – Java, Spring · Web technologies –...

Job Description Satellite AIT Electrical Systems Engineer - £55ph via Umbrella, 37-hour week + paid overtime - Initial 12-month contract with extensions likely - Full-time, on-site in Stevenage - Work on advanced spacecraft systems in a secure and high-tech environment - SC Clearance required ABOUT THE CLIENT: Our client is a global leader in aerospace and defence innovation, delivering...

You will design and develop software for interface and/or webservices to integrate different utility systems. Key Skills/ Screening QuestionsEnergy Management System, Solution Integrator, ESB, Middleware 1. Have you worked on integrating with ESB/IBUS technologies with 5+ years' experience?

Software Development Engineer III Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success. Why Join Us? To shape the future of travel, people must come first. Guided by our...

You will oversee 2–3 backend squads, shaping long-term microservices architecture using Java 21 and AWS. This role balances strategic technical leadership with hands-on mentorship to drive engineering excellence, security, and scalable system design. Why this role is remarkable:

You will be given autonomy over your work so that you will have the opportunity to shape the projects you’re working on. We are a people-first business, which means people are at the heart of everything we do here. We offer our consultants a safe environment where knowledge sharing, and open communication is encouraged.

About Prighter Prighter is a fast-growing LegalTech company building productised services and SaaS solutions for compliance with data protection as well as AI & digital governance regulations. With the mission to enable companies around the world to comply with regulatory requirements for their digital business, our services and SaaS solutions guide our global clients through the increasingly...

You must speak, write and be able to understand fluent English. - Deep knowledge and regular usage of Firebase suite, especially Firestore. - Strong proficiency in TypeScript and modern JavaScript (ES6+).

You must enjoy constantly learning and researching to improve your level of expertise.

You will work as part of a collaborative R&D team focused on delivering high-quality features, and developing the services architecture. This role is ideal for an engineer who thrives in complex systems and is looking to develop new services that exploit a cloud-native ecosystem while modernizing legacy services into a containerized, cloud-native ecosystem.

Join OCI’s Edge Security team as a Principal Engineer to architect and deliver cloud-scale DDoS protection. You’ll lead design for high-performance detection and mitigation systems, drive automation and operational excellence, and set the technical direction for customer-facing DDoS capabilities across OCI’s global edge. This role requires deep expertise in Linux networking data path and...

Job Title: Cloud Engineering Team Lead 📍 West End of London, England | Hybrid 💼 Full-Time | Team Leadership | DevOps & Infrastructure Role Overview We're looking for a Cloud Engineering Team Lead to head a team of DevOps engineers, overseeing the development, deployment, and automation of cloud infrastructure and CI/CD processes. You’ll work closely with engineering, product, and operations...

Full Stack Engineer (Java, React, AI/ML/LLM/SDK) – Cutting-Edge Series B scale up Location: Remote EU - Spain Salary: £70K - £110K About: We are seeking a Full Stack Engineer with a proven track record in building and scaling applications powered by Large Language Models (LLMs). This role requires deep expertise in Java, React, and modern AI/ML development, including LLM frameworks, SDKs, and...

At Orange Logic, we’ve been solving complex content challenges for over two decades—driven by innovation, curiosity, and a passion for impact, our intelligent Digital Asset Management (DAM) system, Orange Logic Platform, empowers organizations across industries to manage, access, and leverage their digital assets more effectively. We’re not just building powerful software—we’re building a team of...

At Orange Logic, we’ve been solving complex content challenges for over two decades—driven by innovation, curiosity, and a passion for impact, our intelligent Digital Asset Management (DAM) system, Orange Logic Platform, empowers organizations across industries to manage, access, and leverage their digital assets more effectively. We’re not just building powerful software—we’re building a team of...

You will work across cutting‑edge platforms including Payment Networks, Digital Banking, Emerging Payments, and highly scalable data and analytics environments built on Google Cloud Platform, Data Lakes and Power BI. This role involves modern engineering, integration, testing, and hands‑on development within a high‑impact digital landscape.

Software Development Engineer III Expedia Group brands power global travel for everyone, everywhere. We design cutting-edge tech to make travel smoother and more memorable, and we create groundbreaking solutions for our partners. Our diverse, vibrant, and welcoming community is essential in driving our success. Why Join Us? To shape the future of travel, people must come first. Guided by our...

You will design and develop software for interface and/or webservices to integrate different utility systems. Key Skills/ Screening QuestionsEnergy Management System, Solution Integrator, ESB, Middleware 1. Have you worked on integrating with ESB/IBUS technologies with 5+ years' experience?

You will work across cutting‐edge platforms including Payment Networks, Digital Banking, Emerging Payments, and highly scalable data and analytics environments built on Google Cloud Platform, Data Lakes and Power BI. This role involves modern engineering, integration, testing, and hands‐on development within a high‐impact digital landscape.