151 to 175 of 313 Java Jobs in London

Software Engineer

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
where the code you ship shows up in production fast and at scale. 💡 They’re looking for engineers who: Have strong OOP fundamentals ( Python, Java, Go, or Rust ) (core stack is C# , and they’ll support you getting up to speed) Enjoy breaking down complex systems and rebuilding them into ...

Global Head of Front Office Application Engineering

Hiring Organisation
Cititec
Location
City of London, London, United Kingdom
engineering leadership within trading, commodities, energy or capital markets. Proven experience running front-office application teams supporting live trading desks. Strong technical background in Java, React, APIs, real-time data and AWS. Experience delivering high-performance, low-latency trading platforms. Confident working directly with traders, quants and senior commercial stakeholders. ...

Control Systems Software Engineer

Hiring Organisation
Searchability NS&D
Location
South West London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£45,000 - £80,000 per annum
statutory requirements Essential Skills & Experience Experience developing client-server applications Strong computer science fundamentals (OOP, data structures, algorithms) Programming experience in C++, C#, or Java Control systems and graphical user interface development experience Familiarity with unit testing frameworks Experience with software configuration management and version control Industrial Ethernet communication protocols ...

Senior Tester Mobile Apps Contract Inside IR35

Hiring Organisation
Interact Consulting Limited
Location
South West London, London, United Kingdom
Employment Type
Contract
collaborative. Confident testing across iOS, Android, Windows, and macOS. Experienced in release test planning and coordination. Hands-on technical understanding of code (Swift, Kotlin, Java, Objective-C). Skilled in diagnosing test failures and mentoring others. Advocates for Quality Engineering and Shift-Left practices. Desirable: Experience with A/ ...

Software Tester

Hiring Organisation
EightMoose.com
Location
Harrow, London, United Kingdom
Employment Type
Permanent
Salary
£30,000
testing principles. Familiarity with SQL or Excel for data validation is advantageous. Knowledge of testing tools (e.g., Selenium, JIRA) or programming languages (e.g., Python, Java) is a plus. What We Offer: Structured training and professional development opportunities. A collaborative and supportive team culture. Competitive salary with a comprehensive benefits package. ...

Staff Software Engineer

Hiring Organisation
Databricks
Location
Greater London, England, United Kingdom
reach for at 2am—observability, customer management, compliance monitoring, maintenance APIs, and the safety guardrails that let teams ship fast without breaking things. Go, Java/Scala, TypeScript, Kubernetes, and more. Both are cross-organizational roles with high autonomy, real ownership, and plenty of ambiguity. If you thrive on complexity ...

Software Tester

Hiring Organisation
EightMoose.com
Location
Dagenham, Essex, South East, United Kingdom
Employment Type
Permanent
Salary
£30,000
testing principles. Familiarity with SQL or Excel for data validation is advantageous. Knowledge of testing tools (e.g., Selenium, JIRA) or programming languages (e.g., Python, Java) is a plus. What We Offer: Structured training and professional development opportunities. A collaborative and supportive team culture. Competitive salary with a comprehensive benefits package. ...

Blue Prism Developer

Hiring Organisation
Rec3 Global Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£60,000
RESTful APIs and Webservices Confident communicator with the ability to explain technology to non-technical audiences Background in Software Engineering using C#, C++, Java would be a hugebonus ...

Fidessa Engineer

Hiring Organisation
McGregor Boyall Associates Limited
Location
London, United Kingdom
Employment Type
Contract
trade lifecycle, market structure, and regulatory requirements (MiFID II, Reg NMS, CAT/TRF). Experience with message-driven architectures, SQL, and scripting in Java or Python. Excellent problem-solving skills and the ability to work closely with traders and engineers in fast-paced environments. Apply today or email your ...

Backend Engineer

Hiring Organisation
Native
Location
City of London, London, United Kingdom
architecture of the company from early days Required experience Experience with Python in production systems, plus at least one additional backend language (e.g. Rust, Java, Go) Experience building and running production backend systems Comfortable turning ambiguous research or ideas into real software Solid understanding of APIs, databases, and distributed systems ...

Clinical Consultant - (Medical Imaging)

Hiring Organisation
Experis
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £500/day
point protection) and practices Storage Platforms technologies (RAID, SAN, NAS, tape libraries) High availability technologies (i.e. based on Hypervisor, OS, Veritas, Oracle) .NET, C++, java programming language knowledge Qualifications & Experience Bachelor's degree or equivalent; a clinical degree and/or Radiographer License preferred. 5+ years of strong experience using ...

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 ...

Clinical Consultant (RIS, PACS) - London or Wales and remote - 5-6 months+

Hiring Organisation
Octopus Computer Associates
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
point protection) and practices Storage Platforms technologies (RAID, SAN, NAS, tape libraries) High availability technologies (ie based on Hypervisor, OS, Veritas, Oracle) .NET, C++, Java programming language knowledge Qualifications & Experience Bachelor's degree or equivalent; a clinical degree and/or Radiographer License preferred. 5+ years of strong experience using ...

HPC Engineer

Hiring Organisation
HMx Labs
Location
London Area, United Kingdom
least 1 year of experience as a software engineer in paid full-time employment Knowledge and commercial experience with at least one of, Java, C# or Python Experience with at least one non-managed/manual-memory language , e.g. C, C++, Rust. At least one of the following : Exposure ...

Mobile Engineer

Hiring Organisation
Expedia Group
Location
City of London, London, United Kingdom
field; or equivalent related professional experience. 2+ years of relevant professional experience building and shipping native Android applications. Proficient in Kotlin (and familiar with Java), with a solid grasp of Android fundamentals and app lifecycle. Comfortable working with REST/GraphQL APIs, client/server patterns, and modern Android tooling ...

Founding Product Engineer

Hiring Organisation
Dex
Location
London Area, United Kingdom
Stack Ownership: Take total agency over the stack, connecting new services and remodeling infrastructure to create a seamless experience. Mission-Critical Problem Solving: Use Java, Kotlin, and Python as tools to solve ambiguous, high-stakes requirements where reliability is a matter of global security. What you'll bring High Ownership ...

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 ...

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 ...

Mid-Level Java Software Engineer

Hiring Organisation
Quant Capital
Location
Greater London, England, United Kingdom
Java Software Engineer – Data Engineering Up to £100,000 + bonus and benefits 4:1 hybrid in office – City of London Quant Capital is hiring for a small, high-performing market maker in London. This is a junior-to-mid role focused primarily on Java development, with a secondary responsibility … PostgreSQL. This is a growing team focused on data ingestion and building tooling for the wider firm. What you’ll do: Build and enhance Java backend services (APIs, batch jobs, integrations) used across the business Write clean, testable code with solid engineering discipline (testing, code review, debugging, production support) Maintain ...

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 ...

Back End Developer / SRE Java JVM - Fintech

Hiring Organisation
Client Server
Location
East London, London, United Kingdom
Employment Type
Permanent, Work From Home
Back End Developer/SRE (Java JVM) London/WFH to £110k Are you a Back End Developer/SRE with a strong knowledge of Java and JVM internals? You could be progressing your career in an impactful role at a global Fintech that has been consistently voted … advisor to influence system design, ensuring reliability standards and driving improvements across the platform. You'll have a broad scope including hands-on coding (Java) to build tools and automation, incident response, observability, performance optimisation and operational excellence, working with large scale Java JVM distribution systems and message brokers such ...

Senior Java Software Engineer

Hiring Organisation
Paritas Recruitment
Location
City of London, London, United Kingdom
Lead Software Engineer – Java Microservices | London (1 day per week on-site) | £74,000 – £92,000 + Package We’re partnering with a leading UK bank to recruit a Lead Software Engineer with strong Java and microservices expertise. This is a hands-on role building high-performance, scalable software … building robust microservices that support high-traffic user experiences, serving thousands or millions of concurrent users. What We’re Looking For Proven experience developing Java microservices for high-traffic applications (retail, e-commerce, media, or streaming platforms). Hands-on experience with the full software lifecycle in agile environments ...

Platform Test Lead

Hiring Organisation
Inspire People
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 Annual
services to support us in this mission and is seeking a Platform Test Lead experienced in test automation (PaaS/SaaS), coding (Python or Java), test frameworks & BDD (e click apply for full job details ...