151 to 175 of 293 Java Jobs in London

Head of Platform Engineering (AI) - Senior Technology Leader - £250,000

Hiring Organisation
Mondrian Alpha
Location
City of London, London, United Kingdom
scaling of the platform globally. The right engineer should bring experience with Neo4j, production grade LLM/AI capabilities (RAG, embeddings, inference pipelines), Kafka, Java/JVM and API-first architecture. The position offers a rare modernisation opportunity, you'd be transitioning from a third-party engineering team to inhouse ...

Software Engineer

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
work, with the code you ship being 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 ...

SOC Engineer

Hiring Organisation
ZKM Consulting
Location
South London, UK
Employment Type
Full-time
Splunk SOAR, and Splunk UBA. · Solid understanding of security incident response and security frameworks (MITRE ATT&CK, NIST) · Experience with scripting/programming (Python, Java, Perl, etc.) and big data analytics. · Familiarity with Windows, Linux/UNIX systems, databases, and multi-petabyte data lakes. · Excellent analytical, communication, and organizational skills. ...

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. ...

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. ...

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. ...

AI Semantic Architect

Hiring Organisation
DXC
Location
City of London, London, United Kingdom
Employment Type
Permanent
graph databases (Neo4j, GraphDB, Apache Jena, etc.). Data Modelling & Integration: Strong understanding of data architecture and integration techniques. Programming Skills: Proficiency in Python, Java, or similar for semantic data processes. Analytical Skills: Ability to troubleshoot ontology logic and query performance. Desired Experience Familiarity with metadata standards (Dublin Core, schema.org ...

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 ...

Fidessa Engineer

Hiring Organisation
McGregor Boyall Associates Limited
Location
London, UK
Employment Type
Full-time
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 ...

Data Engineer

Hiring Organisation
Native
Location
City of London, London, United Kingdom
days Required experience Strong experience with Python in production data or backend systems, plus familiarity with at least one additional backend language (e.g. Rust, Java, Go) Experience building and running production data systems (pipelines, storage layers, APIs) Deep comfort working with SQL, schemas, and complex relational data Experience with real ...

AI Delivery Lead - Permanent - Hybrid - Insurance

Hiring Organisation
Tenth Revolution Group
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£90,000 - £110,000 per annum
such as Scrum or Kanban.Experience in data visualisation and communicating insights from complex datasets to non-technical stakeholders.Proficiency in programming languages such as Python, Java, or C#. To apply for this role please submit your CV or contact Dillon Blackburn on or at . Tenth Revolution Group ...

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 ...

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

Hiring Organisation
Coltech
Location
City of London, London, United Kingdom
Full Stack Developer (GCP/Java/Python) – Contract – Hybrid Location - London Hybrid working – 2–3 days per week onsite Employment Type - Contract Role Overview We are seeking a high-calibre, hands-on Full Stack Developer to join a platform engineering team delivering modern, secure cloud-native solutions. This role … business analysts, and product stakeholders. Contribute to continuous improvement of engineering practices and platform capabilities. Required Technical Expertise Strong hands-on development experience with: Java Python Node.js JSON Experience designing and building APIs and microservices architectures . Experience working within cloud environments , particularly: Google Cloud Platform (GCP) Strong understanding ...

Senior Java Developer

Hiring Organisation
Reed Technology
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£130000 - £150000/annum
Senior Java Developer Location: London (Hybrid - 3 days in office) Role Overview We are seeking a highly skilled Senior Java Developer to join the eFX Algo IT team as a Subject Matter Expert (SME) in low latency trading systems. This is a hands-on development role focused on building … fast-paced, front-office environment, collaborating closely with developers, business analysts, project managers, and QA teams. This role demands deep technical expertise in Java , particularly in low latency environments , and a strong understanding of FX trading systems . You'll be expected to contribute to all phases of the software ...

Junior Java Software Engineer

Hiring Organisation
Quant Capital
Location
Greater London, England, United Kingdom
Java Software Engineer – Data Engineering Up to £70,000 + 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 ...

Senior Java Developer - Remote

Hiring Organisation
Agile Coding Ltd
Location
East London, London, United Kingdom
Agile Coding is a small Java consulting company servicing European clients. We are expanding our team to help support the Java code base of a product within the large European company (SAP). We are looking to employ an experienced Java Developer with the following attributes: Minimum 5 years Java … coding experience with knowledge of patterns Proficient in the Spring framework A strong background in developing and maintaining backend applications using Java and Spring Boot (including recent commercial experience). Experienced in Unit and Integration testing. Database knowledge (preferably PostgreSQL) Must be used to working in a team environment ...

Senior Java Developer - Remote

Hiring Organisation
Agile Coding Ltd
Location
City of London, London, United Kingdom
Agile Coding is a small Java consulting company servicing European clients. We are expanding our team to help support the Java code base of a product within the large European company (SAP). We are looking to employ an experienced Java Developer with the following attributes: Minimum 5 years Java … coding experience with knowledge of patterns Proficient in the Spring framework A strong background in developing and maintaining backend applications using Java and Spring Boot (including recent commercial experience). Experienced in Unit and Integration testing. Database knowledge (preferably PostgreSQL) Must be used to working in a team environment ...

Java Developer

Hiring Organisation
Lynx Recruitment Ltd
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Java Developer Hybrid - 2 Days/Week in London (Victoria) | £50,000-£60,000 + Benefits | Permanent We're seeking a talented Java Developer with strong Spring Framework experience to join a high-performing team delivering large-scale, enterprise-grade applications. Key Focus Areas: Design, develop, and maintain Java-based … Collaborate with cross-functional teams to deliver high-quality software Contribute to solution design, performance tuning, and code reviews Requirements: Proven experience as a Java Developer (Spring Boot/Spring Framework) Degree in IT or a business-related discipline (essential) Experience within financial services or public sector environments (beneficial) Details ...

Java Developer (E-Trading)

Hiring Organisation
AMS CWS
Location
London, United Kingdom
Employment Type
Contract
with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. On behalf of Deutsche Bank, we are looking for a Java Developer (E-Trading) for a 6 Month contract based in London. The Role & Responsibilities: Deutsche Bank's Quantitative Fixed Income Engineering team, part of Group … reviewer) Collaborate closely with engineers, quants, and traders across regions Translate trading desk requirements into robust technical solutions Key Accountabilities, Skills & Experience: Expert-level Java (core Java, collections, multithreading, networking) Proven experience in low-latency and/or high-performance systems Background in electronic trading, pricing, or real-time trading ...

Embedded Software Test Engineer

Hiring Organisation
Expert Employment
Location
N2, Garden Suburb, Greater London, United Kingdom
Employment Type
Permanent
Understanding of the Software Development Lifecycle, especially testing and integration Experience testing Windows and PC-based software Knowledge of scripting or programming (Python, Bash, Java, etc.) Degree in Engineering, Computer Science, or related field ...

Quantitative Analyst

Hiring Organisation
Spectrum IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£100000 - £120000/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 ...