26 to 37 of 37 Java Engineer Jobs in London

Java Software Engineer (Security)

Hiring Organisation
Cognitive Group | Part of the Focus Cloud Group
Location
Greater London, England, United Kingdom
Security Engineer – Software Developer Java Location: Remote from UK Type: Contract Inside IR35 We’re looking for a Security‐focused Software Engineer to design and build secure, high‐quality backend services that power core cryptographic and security‐sensitive platforms. You’ll work across Java engineering … integration and modern DevSecOps pipelines. Key Responsibilities Develop and maintain secure backend services using Java SE 8+ with a focus on performance and code quality. Implement cryptographic operations using JCA/JCE including keystore handling, encryption/decryption, digital signing, and secure random generation. Integrate applications with Hardware Security ...

Java Software Engineer – Quant Hedge Fund (London, Hybrid)

Hiring Organisation
Winston Fox
Location
City of London, London, United Kingdom
Java Software Engineer with around 3-6 years professional, post-graduate experience sought by one of the original Quantitative Hedge Funds, with a 20+ year track-record. The firm are renowned for a healthy, supportive, and collegiate working environment and culture, with no siloes, boasting an industry-leading … Corporate Functions. The team deal directly with business users right across the firm, taking ownership of analysis, design, architecture, and implementation, working primarily with Java, but also with Python, SQL and to a lesser extent, MATLAB. They currently have an opening for a mid-level hire in the team ...

Java Software Engineer

Hiring Organisation
Information Tech Consultants
Location
City of London, London, United Kingdom
Hiring: Java Full Stack Developer Location - Bournemouth, England Compensation : 45-50 LPA We are looking for a Java Full Stack Developer for a 1-year renewable contract based in Bournemouth (5 days onsite). Contract is renewable. Join a dynamic team driving cloud-native innovation! The Essentials … Minimum 3 years in Java & Spring Boot. Stack: Oracle, PostgreSQL, Docker, and Kubernetes. Cloud: Hands-on experience with AWS, Azure, or GCP. Ops: Monitoring with Prometheus, Grafana, or ELK Stack. The Role: Design & scale enterprise APIs and backend services. Lead cloud-native deployments and database optimizations. Mentor peers ...

Java Software Engineer

Hiring Organisation
Gravitas Recruitment Group (Global) Ltd
Location
City of London, London, United Kingdom
Location: London, London, United Kingdom Rate: £550 per day Contract type: Contract We are seeking a Senior Java Developer to join a modern engineering team building high-performance, cloud-native services. You will take ownership of backend design and delivery, mentor engineers, and help elevate engineering standards. … understands the newest features, and can coach others to use it safely and effectively. Key Responsibilities Design, build, and optimise microservices and APIs using Java 21 . Drive best practice in code quality, testing, secure coding, and performance tuning. Build and integrate with NoSQL data stores and event-driven ...

Senior Java Software Engineer

Hiring Organisation
In Product
Location
London Area, United Kingdom
Senior Software Engineer (JVM based ecosystem/Backend leaning) £90,000 – £120,000 | London (Hybrid – 3 days in office) The Opportunity We’re partnered with a scaling, venture-backed SaaS business delivering a mobile-first platform used by large distributed workforces across global enterprise organisations. This is not greenfield … Tech Stack The platform operates within a JVM-based ecosystem , including: Scala (core backend) AKKA framework (with migration toward PEKKO) Gradual migration toward Java/Spring Boot Node.js for integrations and connectors Some Kotlin usage The environment is language-agnostic in mindset. Strong backend fundamentals matter more than experience ...

Senior Java Software Engineer

Hiring Organisation
Synchro
Location
City of London, London, United Kingdom
cloud-native systems using modern engineering practices. The environment is data-driven, product-focused, and centred around delivering real value to customers. Tech environment Java/Kotlin (JVM ecosystem) Microservices architecture Cloud-native (AWS/GCP) Spring/Spring Boot Docker & Kubernetes Messaging & streaming technologies Distributed tracing and observability … zero-downtime releases Collaborating in cross-functional squads and contributing to engineering best practices What we’re looking for Strong backend engineering experience (Java/Kotlin preferred) Experience working with distributed systems and cloud technologies A problem-solving mindset with a focus on quality and ownership Comfortable working ...

Platform Engineer - Active SC, Oracle, Java

Hiring Organisation
Hays Technology
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day Up to £550 per day - Inside IR35
Platform Engineer - Active SC, Oracle, Java Up to £550 per day - Inside IR35 Hybrid 6 months My client is an instantly recognisable consultancy who urgently require a Platform Engineer with Active SC Clearance for an end client within the public sector. Key Requirements: Proven commercial experience working … Platform Engineer within the public sector. Active SC Clearance. Experience maintaining and troubleshooting legacy applications/infrastructure, including Oracle, WebLogic, and Elasticsearch. Building and supporting CI/CD pipelines, refactoring code, and developing automated tests. Strong knowledge of Nginx, Apache Tomcat/HTTP, and ETL processes. Installing and supporting ...

Java Full Stack Engineer (SC eligible)

Hiring Organisation
Sanderson Recruitment
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Java Full Stack Engineer - Consultant/Senior Consultant Location: UK (Hybrid Remote with client site travel) Salary: £45,000 - £75,000 + Benefits Security Clearance: SC cleared/eligible Hybrid working UK-wide Help transform public services through modern engineering click apply for full job details ...

Java / Python Engineer

Hiring Organisation
Upbeat Ideas UK Ltd
Location
London, United Kingdom
Employment Type
Permanent
looking for Java/Python engineer to work on our customer's project Eligibility : Citizen/ILR/Settled/Dependent Responsibilities Include: Developing products that consists of generic cores that could be customized, and extended by modules. Creating and securing APIs to internal and external teams … maintenance of deliverables. Qualifications: BS/MS in Computer Science or equivalent 8+ years experience in developing and maintaining business applications SQL/PLSQL, Java/Python programming experience is a must Oracle RDBMS experience is a must Must have experience with a webserver such as Apache Tomcat Knowledge ...

Java / Python Engineer

Hiring Organisation
Upbeat Ideas UK Ltd
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
looking for Java/Python engineer to work on our customer's project Eligibility : Citizen/ILR/Settled/Dependent Responsibilities Include: Developing products that consists of generic cores that could be customized, and extended by modules. Creating and securing APIs to internal and external teams ...

Java Risk Engineer – Multi-strat Hedge Fund – £250k TC

Hiring Organisation
Saragossa
Location
City of London, London, United Kingdom
high-performance environment (and top of the class in their field), meaning your performance-related bonus will be better than most. They're a Java house, so previous experience building low-latency applications in Java is a must here. If you've got exposure/an understanding ...

Java Engineers - Senior / Lead

Hiring Organisation
numi
Location
London Area, United Kingdom
Lead & Senior Software Engineer | Fintech Accelerator | London | Scale-up Impact The Opportunity Born from the successful launch of a major digital bank, we are hiring a high-growth venture team with a fresh mission. Building products that solve real-world financial problems by putting the customer at the center … every decision. As a Lead & Senior Software Engineer, you will be the technical heartbeat of an Accelerator business. This is a rare chance to operate with the agility of a fintech while leveraging the stability and reach of a global financial leader. You will thrive in a squad-based ...