151 to 175 of 267 Java Jobs in London

Client Analyst

Hiring Organisation
Kingsgate Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£27,000 - £50,000 per annum
market hours when required About You Degree in Computer Science, Engineering, Mathematics or a related scientific discipline Practical programming knowledge (Python essential; C# or Java advantageous) Strong communication skills and confidence leading client discussions Highly motivated with a strong willingness to learn and develop Interest in financial markets and trading ...

Lead Solutions Architect

Hiring Organisation
FBI &TMT
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
record leading multi-geography, multi-vendor technical collaborations. Deep understanding of cloud SaaS architectures and insurance/health-tech domains. Hands-on technical credibility (Java, Kafka, AWS) combined with executive presence and negotiation skills. Demonstrable expertise in tools/technologies for the design, development, build, testing and deployment of various ...

Lead Enterprise Architect

Hiring Organisation
FBI &TMT
Location
Crofton Park, Greater London, UK
Employment Type
Full-time
record leading multi-geography, multi-vendor technical collaborations. Deep understanding of cloud SaaS architectures and insurance/health-tech domains. Hands-on technical credibility (Java, Kafka, AWS) combined with executive presence and negotiation skills. Demonstrable expertise in tools/technologies for the design, development, build, testing and deployment of various ...

Security Consultant (Applications)

Hiring Organisation
Morson Edge
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - 750 per day
About the Role You will act as the security lead embedded within an application development delivery team, working across a complex hybrid environment including Java/React, J2EE microservices, RPG/JSP on z/OS, and API-driven architectures. Your mission: enable fast, secure delivery by uplifting application security ...

Lead AI Engineer

Hiring Organisation
Sopra Steria
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£90,000
Machine Learning, including agent-based AI, RAG (Retrieval Augmented Generation), multi-agent systems and conversational agents. Strong programming skills in Python, Java or .NET. Experience with GenAI and LLMs (e.g. ChatGPT, Claude, Llama, OpenAI), including prompt engineering, fine tuning and advanced search. Familiarity with AI agent frameworks (e.g. Autogen ...

Full Stack Developer - Active SC, NPPV3, Java

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
Salary negotiable
Full Stack Developer - Active SC, NPPV3, Java Up to £550 per day - Inside IR35 Remote 6 months My client is an instantly recognisable consultancy who require a Full Stack Developer with Active SC and NPPV3 clearance for a client within the public sector. Key Requirements: Proven commercial experience working … Full Stack Developer within the Public Sector. Active SC and NPPV3 Clearance. Senior-level expertise in either Java/Spring (Boot, Data JPA, Security) or JavaScript/TypeScript with React; mid-level experience acceptable in the other Proven experience delivering high-quality, cross-functional solutions using microservices and micro-frontend ...

Senior Java Developer

Hiring Organisation
Eligo Recruitment Ltd
Location
London, Chaucer, United Kingdom
Employment Type
Permanent
Salary
£85000 - £95000/annum
Back End Java Developer with experience within the iGaming and Gambling sector looking for a new and exciting challenge? BENEFITS : up to £95k depending on experience, fully remote, excellent benefits package You will be joining a rapidly expanding company within the iGaming sector, who are committed to providing top-tier … brands within our market, blending sports betting and online casino entertainment on a cutting-edge, custom-built platform. You will be a skilled Senior Java Backend Developer who is a self-motivated professional with a strong track record and a passion for excellence. You'll play a key role ...

Software Engineer Java

Hiring Organisation
Vitality
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Competitive salary
Vitality Offices. Full time hours. We are happy to discuss flexible working! Top 3 skills required: To be fully proficient in Java Familiarity with DevOps tools To be able to identify key areas of improvement within Vitality's processes and standards What this role is all about: Software Engineers … thrive? Demonstrable expertise with 5+ years of experience in the use of appropriate tools/technologies for the design, development, build, testing & deployment of Java/JEE applications. Understanding of Agile Methodologies Demonstrated expertise with Spring Boot Demonstrable experience in integrating disparate applications and technologies using Java Experience with ...

Java Backend Engineer

Hiring Organisation
Kneu Health
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£60,000
Collaborate closely with engineering and data teams to deliver high-quality outcomes Requirements 2+ years backend engineering commercial experience 1+ year commercial experience with Java and Spring Boot Experience building and maintaining RESTful APIs Familiarity with microservices and distributed systems Solid understanding of SQL databases , backend architecture, and release processes ...

Senior Java Engineer (Smart Contract)

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Contract
Title: Senior Java Engineer (Smart Contract) Location: London Contract: 12 Months Are you a passionate Senior Java Developer looking to make a significant impact in an innovative environment? Our client is seeking a talented individual to join their dynamic team in London, where you'll design and develop cutting-edge … fast-paced atmosphere and enjoy collaborating with cross-functional teams, this opportunity is for you! What We're Looking For: Strong expertise in Java and Spring/Spring boot. Hands on Smart Contract (Solidity) experience in essential Experienced in financial services , Ideally Commercial Lons. Experience in developing and deploying microservices ...

Java Developer

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
Soho, London, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £90,000 per annum
Java Developer | Backend | Microservices | FinTech | London | Hybrid | £90k I'm proud to partner with a global financial organisation, creating an app that allows people in countries like Mexico, Argentina, Colombia, and Brazil manage money in digital dollars and digital euros and it’s designed to protect users from local currency … with partners such as Mastercard, Stripe, OpenAI to make sure they leverage latest technology in all their products.They are looking for an experienced Senior Java Developer, predominantly on version 21 with PostGres Database and Spring Boot, to help develop their rapidly growing application, by building REST APIs, Microservices and evolving ...

Lead Java Developer - £85k & London

Hiring Organisation
Opus Recruitment Solutions Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£80,000 - £130,000 per annum
Lead Java Developer - £85k & LondonJava, Springboot, Microservices, AWSI’m partnering with an established tech firm that’s been building digital platforms and mobile products for over 2 decades.They work with well-known businesses in highly regulated industries, where systems need to be secure, reliable and built properly. They … things are designed and improved, and there’s a real emphasis on clean code, testing and maintainability.Their current tech stack is a mixture of Java, Springboot, Microservices, Kakfa, AWS, CI/CD, SQL, Kubernetes to name a few areas. We need strong engineers who are great communicators ...

Specialist Architect Lead - SC Cleared

Hiring Organisation
Brightbox GRP Ltd
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £650 per day, Benefits Fully Remote
cloud hosting. Key Responsibilities Lead a time-boxed 6-week technical investigation and PoC . Analyse the current legacy integration platform (WebLogic, Java Integration, Oracle RAC). Review design hosting architecture options. Build prototypes to validate recommended approaches. Produce clear architectural outputs and recommendations for stakeholders. Required Skills & Experience Proven ...

Quantitative Analyst

Hiring Organisation
Spectrum It Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
well as very competitive salaries, our client offers an excellent working environment. Skills required: Proficient in several of the following: Python, C#, C++, Java Mathematical Modelling Mathematical skills, particularly a keen understanding of probabilities and statistics Analytic mindset Strong communication skills Accuracy and attention to detail Experience in data science ...

Quantitative Analyst

Hiring Organisation
Spectrum IT Recruitment
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £100,000 per annum
well as very competitive salaries, our client offers an excellent working environment. Skills required: Proficient in several of the following: Python, C#, C++, Java Mathematical Modelling Mathematical skills, particularly a keen understanding of probabilities and statistics Analytic mindset Strong communication skills Accuracy and attention to detail Experience in data science ...

AI Safety Researcher - London (Fully Remote)

Hiring Organisation
Randstad Digital
Location
London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£480 - £725 per day
quality training and benchmarking data. Who You Are Safety Expert: Proven experience in adversarial testing and model alignment. Tech Stack: Strong Python , SQL , and Java . AI Specialist: Hands-on experience with LLMs and prompt engineering. Academic: MSc/PhD in AI/ML (Safety or Agentic systems focus preferred ...

Network Observability Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£650 - £730 per day
need to succeed Extensive experience in observability and also network engineering Strong experience with OpenTelemetry, Prometheus, Grafana, Splunk, Elastic etc Python, Go or Java programming - nice to have Experience with Terraform, Helm or other IAC tools What you'll get in return An exciting opportunity to join an international organisation ...

Python Quant Dev - Cash Equities/Algo/Backtesting/Trading/Market Making

Hiring Organisation
Scope AT Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
consulting capacity to optimise use of trading products Key Skills & Experience Strong quantitative mindset with passion for data and research Strong Python development skills (Java exposure beneficial but not core) Experience with electronic trading strategies and market microstructure Knowledge of European equities markets Exposure to distributed systems and large-scale ...

Performance Test Engineer (JMeter) - 90% Remote Working - 6-month FTC

Hiring Organisation
Saffron QA
Location
East London, London, United Kingdom
clients. We are looking for a candidate with the following experience; Experience of Performance testing using JMeter and designing performance testing solutions. Good Java programming skills. Experience of a performance monitoring tool. Participate in the continuous improvement of the Quality Engineering process, including the implementation of best practices and strategies. ...

Performance Test Engineer (JMeter) - 90% Remote Working - 6-month FTC

Hiring Organisation
Saffron QA
Location
Central London / West End, London, United Kingdom
clients. We are looking for a candidate with the following experience; Experience of Performance testing using JMeter and designing performance testing solutions. Good Java programming skills. Experience of a performance monitoring tool. Participate in the continuous improvement of the Quality Engineering process, including the implementation of best practices and strategies. ...

Staff Data Engineer

Hiring Organisation
WeDoTech
Location
Greater London, Sheldon Square, United Kingdom
Employment Type
Permanent
Salary
£80000 - £95000/annum
desirable, though Redshift or Synapse are also suitable - Experience with data orchestration tools such as Airflow or Prefect - Strong coding ability in Python, Java, or Scala - Experience building data infrastructure from scratch - Comfortable working with both batch and streaming data - Experience integrating data platforms with microservices and real time systems ...

Lead PKI Engineer - Fully remote - Excellent opportunity

Hiring Organisation
Cyber Talent Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Experience Required Proven senior or lead PKI engineering experience Deep expertise in cryptography and HSM technologies (e.g., nShield, Luna, PKCS#11) Strong software engineering skills (Java and/or Python preferred) Confident leader with the ability to influence technical decisions and drive best practices Ambitious, innovative, and ready to make ...

Offensive Security Tester Red Team

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£50,000
keen interest in Cyber Security and understanding of key concepts and protocols You can code with any OO programming language (e.g. Python, C++, C#, Java) You have experience of using different operating systems and networking technologies You have a good understanding (and interest in) low level concepts including operating systems ...

STEM Graduate Programme

Hiring Organisation
Vanderlande
Location
West Drayton, London, United Kingdom
Employment Type
Contract
Contract Rate
£30,000
Controls Production; Project SCADA Technical Support where necessary; Ideally, knowledge or a keen interest in object orientated programming, such as C++, Visual Basic, Python, Java, C#. Knowledge in Web UI Design and preparing Graphical User Interfaces. Please note that UK and Ireland travel will be necessary along with a valid ...

Full Stack Developer - React / Java (SC Cleared)

Hiring Organisation
Henderson Scott
Location
London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£500 - £525 per day
Full Stack Developer (80% React/20% Java) Location: Fully Remote (UK Based) Rate: £525 per day (Inside IR35) Clearance: Active SC Clearance (Essential) Contract Length: Initial 6 months We are looking for a Frontend-heavy Full Stack Developer to join a long-term digital transformation programme. This … high-impact role within a complex, state-driven environment, perfect for a React expert who is comfortable dipping into the Java backend when required. The Technical Balance React (80%): You will lead on the frontend, building high-performance, accessible (GDS-aligned) user interfaces and complex dashboards. Java (20%): You will ...