151 to 175 of 326 Java Jobs in London

Contract Python Developer (Investment Banking) - Front Office/Derivatives Risk/Pricing&Risk/Server

Hiring Organisation
Scope AT Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
looking to hire a Python Developer on a long term contract role (initial 12 months) 5+ years of strong Python development experience (optional Java) with demonstrable experience of having designed and developed complex Server Side components. Experience working in Financial Services specifically within markets in Front Office derivatives risk systems ...

Infrastructure Operations Lead

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Technical proficiency is a must, with Linux mastery being key, along with experience in Docker and Kubernetes. While not a development role, familiarity with Java applications and micro‐service‐based platforms would be a big plus. Working on projects that are helping over 40 million people nationally, this specialist ...

Software Engineer

Hiring Organisation
Understanding Recruitment
Location
London Area, United Kingdom
clean energy for the charging of electric vehicles. In this position, they are looking for experience in: 3+ years commercial experience JVM development - Java, Kotlin or Scala (Bonus) if you have already worked with Kotlin Microservices architecture Public cloud technologies e.g. AWS Have worked in modern, product-focused tech companies ...

Avaloq Developer

Hiring Organisation
Ubique Systems UK Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
solving skills Strong in communication, able to relate to relevant internal and external stakeholders along with end users Good to Have Working knowledge in Java, PL/SQL, Oracle Angular experience is an added plus ...

Technical Business Analyst

Hiring Organisation
Miller Maxwell Ltd
Location
Greater London, England, United Kingdom
front-office, brokerage, exchange, ISV, software vendor or market data business. Experience within Equities or Fixed Income markets. Familiarity with modern tech stacks, including Java, Python or C++. Experience working within an electronic trading environment is essential. Excellent analytical, communication, and stakeholder management skills. 🌍 Why Join? You’ll be part ...

Full Stack Engineer

Hiring Organisation
Stealth iT Consulting
Location
City of London, London, United Kingdom
maintainable code, systems design and software architecture Experience working across multiple technology stacks Strong experience with library‐appropriate, strongly typed languages such as C++, Java, C#, Go or Rust, along with relevant front‐end frameworks High adaptability and the ability to learn new technologies quickly Interest in modern technologies such ...

Senior Penetration Tester

Hiring Organisation
Arcus Search
Location
London Area, United Kingdom
just find problems — you help fix them. Have solid experience in penetration testing and offensive security Can spot vulnerabilities in code (especially Java and Node.js) Understand modern architectures — AWS, microservices, APIs Communicate clearly and give practical, actionable remediation advice Comfortable scripting and contributing to larger projects in Python Take ownership ...

Front-End Engineer (React) : Trading : £120-180k plus excellent bonus : London

Hiring Organisation
Hunter Bond
Location
City of London, London, United Kingdom
modern React frameworks WebSockets, streaming data, or real-time UI updates D3.js, charting libraries, or custom data visualisation Backend languages such as Python, C++, Java, or Go Familiarity with GraphQL, RESTful APIs, or event-driven systems Nice to Have (But Not Required) Exposure to financial markets, trading systems, or time ...

C# Developer - Front Office Engineering | Hedge Fund - London

Hiring Organisation
Undisclosed
Location
London Area, United Kingdom
central to the team’s core systems Python is widely used across quant and data groups Open to candidates from other OO backgrounds (C++, Java, Go) with strong fundamentals Exposure to high‐performance, low‐latency, or business‐critical systems is valuable Financial markets experience is not essential, but interest ...

Investment Banking - Low Latency C++ Developer - financial markets/Linux/scripting/low latency/TCP/I

Hiring Organisation
Scope AT Limited
Location
London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
part of the low latency development team. The team provides industry leading low-latency trading services for our clients, utilizing FPGA, C++ and Java technologies. The candidate will be focusing on the C++ components. The ideal candidate: Is motivated by working in a high performing team, Is flexible to change ...

Data Engineer

Hiring Organisation
Searchability NS&D
Location
City of London, London, United Kingdom
Strong AWS expertise, including tools such as Glue, Lambda, Kinesis, EMR, Athena, DynamoDB, CloudWatch, SNS and Step Functions. Skilled in modern programming, particularly Python, Java, Scala and PySpark. Solid knowledge of data storage and big data technologies, including data warehouses, databases, Redshift, RDS and Hadoop. Experience building and managing ...

Back End Developer

Hiring Organisation
Hyalli
Location
London, England, United Kingdom
clean, tested, maintainable code • Iterating quickly based on real user feedback ⸻ What We Are Looking For • Proven experience with server-side languages — C#, Python, Java, Node.js, or similar • Strong knowledge of RESTful API development (ASP.NET Web API or equivalent) • Solid understanding of database design — SQL, T-SQL, PL/ ...

Site Reliability Engineer, Region Services

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Experience in networking, storage systems, operating systems, and hands‐on systems engineering Experience programming with at least one modern language such as C++, C#, Java, Python, Golang, PowerShell, Ruby Preferred Qualifications Experience with Ansible (preferred), PowerShell or JavaScript/TypeScript Amazon is an equal opportunity employer and does not discriminate ...

Senior Cyber Security Analyst

Hiring Organisation
Anson McCade
Location
City of London, London, United Kingdom
methodologies End-to-end incident response lifecycle experience Detection engineering and alert development expertise. Strong scripting or programming skills (Python, Bash, C/C++, Java). Solid grounding in cybersecurity fundamentals: network security, cloud security, cryptography, forensics. Understanding of common network protocols and attacker abuse patterns. Awareness of current ...

Staff Software Engineer

Hiring Organisation
Hays Specialist Recruitment Limited
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£120,000 - £135,000 per annum
Hands-on experience with cloud-native technologies, containers, and CI/CD pipelines Experience influencing technical direction across teams or domains Strong expertise in: Java Distributed systems architecture API design Performance optimisation and scalability Nice to have: Previous experience at Staff/Principal/Tech Lead level Exposure to high ...

Senior C# Developer (Contract) - Front Office Engineering | Hedge Fund

Hiring Organisation
Undisclosed
Location
City of London, London, United Kingdom
essential for this role) Python within quant or data environments The client will also consider exceptional engineers from other OOP backgrounds such as C++ , Java , or Go Familiarity with UI technologies such as WinForms, WPF, Blazor Hybrid, and Blazor Web Additional interests: Experience working in front‐office or trading‐technology ...

Senior C# Developer - Head of Core Platform | Hedge Fund | London

Hiring Organisation
Undisclosed
Location
City of London, London, United Kingdom
essential for this role) Python within quant or data environments The client will also consider exceptional engineers from other OOP backgrounds such as C++ , Java , or Go Familiarity with UI technologies such as WinForms, WPF, Blazor Hybrid, and Blazor Web Leadership & Approach Experience working in front‐office or trading‐technology ...

Salesforce Engineer

Hiring Organisation
Stepstone UK
Location
South East London, London, United Kingdom
Employment Type
Permanent, Work From Home
jargon into technical tasks and be responsible for having discussion with business stakeholders and product Work with the following tech/tools/methodology; Java, JavaScript, HTML, CSS, TDD, Agile, pair programming, Bitbucket, Bamboo Qualifications Experience in the Salesforce and Force.com platform Apex, Aura/LWC, Visualforce development with ...

Site Reliability Engineer - Private Cloud Compute

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
eliminating repetitive manual processes using automation to improve them through repeated iteration Confirmed ability to write programs using a high-level programming language like: Java, Go, Python, or Perl Proclivity towards efficient programming emphasizing improvement via complexity analysis. Experience with Kubernetes, Nginx, Envoy, Prometheus, and/or Docker. Preferred Qualifications ...

Database Reliability Engineer

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Observability mindset: build deep observability (Prometheus/Grafana/OpenTelemetry/Humio) and guardrails for secure operation. Engineering via code: deliver backend services in Java with clean relational modeling and performant DDL. Interview Process Stage 1 – 30 min chat with a team member. Stage 2 – Take‐home challenge. Stage ...

Founding Solutions Engineer

Hiring Organisation
Orama Solutions
Location
London Area, United Kingdom
track record of owning complex technical sales cycles in enterprise accounts. Strong development foundation — 7+ years of hands-on experience in technologies such as Java, .NET, or similar enterprise frameworks, with the credibility to engage senior technical stakeholders from the development domain. Technical breadth — Experience evaluating complex application architectures ...

Full Stack Java Developer

Hiring Organisation
Brio Digital
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
£500/hour
Title Java Developer Day Rate £500/day - Inside IR35 Location Remote - Occasional London Duration 6 months (with view to extend) ROLE DESCRIPTION Brio Digital are supporting a consultancy on a major NHS digital programme and are looking for an experienced Senior Java Developer to join a high-performing engineering … team. You will take a lead role in the design and delivery of complex, enterprise-scale solutions, bringing strong Java, AWS, and API expertise to a programme that is making a real difference to patient care across the country. KEY RESPONSIBILITIES Lead the design and development of robust, scalable Java ...

Lead Software Developer - SC Cleared

Hiring Organisation
Searchability NS&D
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£75,000 - £90,000 per annum
where you'll balance technical delivery with mentoring and architectural direction. Key Responsibilities Lead the design, development, and deployment of full-stack applications using Java, React, JavaScript , and AWS . Provide technical leadership and direction to development teams. Collaborate with architects, product owners, and stakeholders to deliver secure and scalable … junior and mid-level developers. Ensure all solutions meet government and security compliance standards. Skills & Experience Essential: Active SC Clearance . Strong background in Java and React development. Proficiency with AWS and modern JavaScript frameworks. Experience leading technical teams or projects in an agile environment. Excellent problem-solving, communication ...

Generative AI Engineer

Hiring Organisation
Immersum
Location
City of London, London, United Kingdom
requirements and deliver iterative solutions in Agile environments Core requirements 8+ years of hands-on software engineering experience across Python and object-oriented languages (Java or C++) Strong background delivering production-grade full-stack or backend systems Deep understanding of cloud architecture (AWS, Azure, or GCP) with a focus … scalable and secure systems Strong proficiency in Python and SQL , plus experience with either Java or .NET Solid DevOps experience including Git, CI/CD pipelines, and containerisation (Docker, Jenkins or equivalent tools) Proven experience designing and building microservices-based architectures in distributed systems Advanced knowledge of database systems , including ...

Contract Algo Trading Java Developer - eTrading, low latency, Java APIs, Multithreading, FIX

Hiring Organisation
Scope AT Limited
Location
London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Contract Algo Trading Java Developer - eTrading, low latency, Java APIs, Multithreading, FIX Our Investment Banking client is looking for an Algo trading Java developer to join the team to work on new initiatives and support for business critical algorithmic trading engines. The team provides innovative solutions for low touch … latency trading, which includes FIX connectivity, low latency market connectivity, smart order routing, algorithmic trading and internal crossing. The requirement is for a core Java developer. The team is working on a number of algorithmic engines that support benchmark algos, smart order routing and internal crossing. The main responsibilities ...