51 to 75 of 77 Java Jobs in the City of London

Network Observability Engineer

Hiring Organisation
Hays Specialist Recruitment
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Daily
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 ...

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 ...

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
engineering experience at senior or lead level Deep expertise in cryptography and HSM technologies (e.g. nShield or Luna, PKCS#11) Strong software engineering skills (Java and/or Python preferred) Confidence to lead technically, influence decisions, and set best practice Not a perfect match on paper? Apply anyway. If youre ...

Lead Java Developer

Hiring Organisation
Sanderson
Location
City of London, London, United Kingdom
Role: Lead Java Engineer – Risk & Compliance Platform Location: London (hybrid) Salary: £125,000 – £150,000 + Bonus Are you an exceptional Java engineer ready to step into a true leadership role within one of the most critical platforms in global banking? We’re working with a top-tier financial institution … comfortable leading complex engineering initiatives, influencing design decisions, and mentoring other engineers within the team. You’ll bring strong experience in: Core Java , with a deep understanding of multithreading and concurrency Grid Computing Cloud-native development , ideally on GCP Kubernetes and containerised environments Designing and delivering systems that operate ...

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 staff tenure. … 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, with ...

Senior Full Stack Engineer FX e Trading London

Hiring Organisation
Atrium Global
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £750 to £900 per day
Trading London Atrium EMEA is looking for several Senior Full-Stack Engineer with good experience of FX e-Trading (React/TypeScript + Java) to help architect and build a new FX e-trading platform from the ground up, working across the stack to deliver high-performance, resilient, and secure … PAYE/Umbrella options. Lead design and development of full-stack features: React/TypeScript web apps, desktop container integrations (OpenFin or similar), and Java services. Architect and implement scalable, event-driven, and microservices-based backend components (e.g., Spring Boot), including APIs, market data, order/risk workflows, and real ...

Senior Java Developer

Hiring Organisation
Vallum Associates Limited
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP 500 Daily
Your responsibilities: Design and develop web applications using Java (latest versions), Spring Boot, and AWS technologies. Architect and implement RESTful APIs for distributed enterprise-grade systems. Develop robust, scalable, and high-performance microservices leveraging Spring Boot and modern design patterns click apply for full job details ...

Java Developer | London/Hybrid | £100,000 - £140,000 | Growing Fintech

Hiring Organisation
Opus Recruitment Solutions
Location
City of London, London, United Kingdom
Java Developer | London/Hybrid | £100,000 - £140,000 | Java 21 | Microservices | TDD | AWS | PostgreSQL | Kubernetes | Fintech | Digital Banking Looking to join a company who are making waves within the fintech space? Want to work with the latest Java technology? I am supporting a rapidly growing fintech scaleup … backed by the same investors who backed the likes of Coinbase and Airbnb. They’re currently in growth mode and are looking for multiple Java Engineers from mid – Lead to come on board and build scalable, secure backend systems. A lot of what you will be working on will ...

Java Developer Spring Boot AWS - Trading

Hiring Organisation
Client Server
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 90,000 Annual
Java Developer/Software Engineer (Spring Boot AWS) London/WFH to £90k Are you a backend focussed Java technologist who enjoys building systems from scratch? You could be progressing your career at a global, prime broker that is replacing the legacy infrastructure used across capital markets with ...

Lead Software Engineer

Hiring Organisation
Talent
Location
City of London, London, United Kingdom
native future. You will be responsible for the strategic migration from on-premise data centres to AWS , shifting from Oracle to PostgreSQL , and evolving Java EE/EJB environments into modern Spring microservices. Technical Technical Requirements To succeed in this role, you will need a deep background in enterprise-scale … migrations: Java Modernisation: Extensive experience migrating legacy Java (EE/EJB) to modern versions (Spring/Java 11). Data & Cloud Transition: Proven track record of moving workloads from Oracle (PL/SQL) to PostgreSQL and migrating from physical Data Centres to AWS. Legacy OS Knowledge: Comfortable navigating environments across ...

Senior Java Microservices AWS developer

Hiring Organisation
DCV Technologies Limited
Location
City, London, United Kingdom
Employment Type
Contract
Contract Rate
GBP Annual
Position: Senior Java Microservices AWS developer Location: London, UK (2 days a week from office) 6 months contract position The Role As Senior Java Microservices AWS developer with a strong hands-on experience, you will design and develop scalable, cloud-native web applications using Java and AWS Serverless architecture Model ...

Graduate / Junior Developer, Python, Linux, C#, Java - London

Hiring Organisation
Noir
Location
City of London, London, England, United Kingdom
Employment Type
Full-Time
Salary
£30,000 - £40,000 per annum
Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 10.0, C#, J2EE, Agile, TDD, BDD, Graduate/Junior Developer) Since 2006 our client's revolutionary marketing software platform has been helping businesses all over the world to attract, engage … experiences that are relevant, helpful, and personalized. Having recently launched in the UK, they looking to hire Graduate/Junior Developer (Python, Linux, C#, Java)) to become a part of their ever-growing family. They believe that individual developers are in the best position to make decisions about what should ...

Java Swing Developer

Hiring Organisation
Caspian One
Location
City of London, London, United Kingdom
Senior Java Swing Developer – About the Role We’re looking for a Java Swing Developer to join a team working on a high-performance desktop trading platform. Working on a mission-critical system that supports FX Cash, deposits, futures, swaps, and more. The platform is rich in functionality, handles heavy … loads with low latency, and underpins key trading and sales workflows. You’ll help maintain and evolve the current Java Swing UI, while preparing for a future transition to a modern microservices-based architecture. This role offers exposure to complex, real-time systems and the chance to influence the next ...

Low Latency Java Developer

Hiring Organisation
Thomson Keene
Location
City of London, London, United Kingdom
client, a Tier 1 Investment Banking institution, is seeking a Lead Java Developer to be a key individual contributor in the rebuild of a business critical ecommerce platform. You will be working with the front office at all levels to ensure that the requirements, design and build are conducted accurately … high quality development environment. FX or rates business knowledge is an essential for this role (flow and derivatives). Key tech experience requirements: Java programming, real time systems with an emphasis on low latency techniques Microservice architectures and grid computing React front end development or interactions with front end development ...

FX Options - Java Developer

Hiring Organisation
Selby Jennings
Location
City Of London, England, United Kingdom
business performance. Collaborate with traders and cross-functional teams to provide practical, incremental improvements aligned with strategic objectives. Your Expertise: Strong server-side Java development experience with concurrency skills. This position requires proven experience as a front-office engineer. Excellent problem-solving and analytical abilities. Knowledge of KDB+ and MongoDB ...

Automation Assurance Specialist

Hiring Organisation
83zero Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£55,000
business development, internal initiatives and knowledge-sharing activities Technology Exposure You will gain experience across a broad technical landscape, including but not limited to: Java, JavaScript, Node.js, Kotlin Spring Boot and RESTful microservices Selenium, Playwright, Cucumber, REST testing NoSQL databases Git-based version control systems Your Profile Essential experience: ISTQB … Foundation certification (or equivalent experience) Strong experience in functional, integration, exploratory and manual testing Experience building and contributing to automation frameworks (Java or JavaScript) Hands-on experience with backend and frontend automated testing tools Experience working in agile delivery environments Confident using Git-based version control tools (GitHub, GitLab etc. ...

Full Stack Engineer Java AWS React - Start-up

Hiring Organisation
Client Server
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 80,000 Annual
Full Stack Engineer/Developer (Java AWS React) London/WFH to £80k Are you a Java technologist looking for an opportunity to be part of something big from the start? You could be progressing your career in an impactful role at a newly established Fintech start ...

Senior Full-Stack Engineer (Java & Python)

Hiring Organisation
McCabe & Barton
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Senior Full-Stack Engineer (Java & Python) We are seeking a high-impact Senior Full-Stack Engineer to join a growing technology team for a leading investment house supporting market data services within a regulated, enterprise environment. This role sits at the intersection of data engineering, full-stack development, and business ...

Senior Software Engineer

Hiring Organisation
Stott and May
Location
City of London, London, United Kingdom
Engineer Location: London (x3 days a week onsite) Salary: Up to £80k DOE Type: Perm Job Description We are looking for a passionate Senior Java Engineer in London to lead the design and development of core product features and services that power an app used by thousands of travellers … daily basis. As a Senior Java Engineer for an loyalty program team, you will have the opportunity to make a massive impact on traveller's behaviour and booking experience. Specifically, you’ll be responsible for driving improvements to loyalty offerings that enable millions of business & leisure travellers. What ...

Back End Developer

Hiring Organisation
Stott and May
Location
City of London, London, United Kingdom
Engineer Location: London (x3 days a week onsite) Salary: Up to £80k DOE Type: Perm Job Description We are looking for a passionate Senior Java Engineer in London to lead the design and development of core product features and services that power an app used by thousands of travellers … daily basis. As a Senior Java Engineer for an loyalty program team, you will have the opportunity to make a massive impact on traveller's behaviour and booking experience. Specifically, you’ll be responsible for driving improvements to loyalty offerings that enable millions of business & leisure travellers. What ...

Graduate Developer in Test

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
around the world. As a Graduate SDET, you must have: BSc in Computer Science Degree from Russell Group University Strong comprehension of Core Java concepts and Computer Science fundamentals Hard-working & driven mindset In this position, you will gain extensive knowledge across a broad variety of technological topics: ✅ Automation testing … knowledge of REST APIs ✅ Software development experience in Java ✅ Identifying opportunities and executing improvements to quality process ✅ Developing automated tests and test frameworks ✅ Improving Continuous Integration pipeline ✅ Exposure to Docker, Kubernetes, SQL, Linus, Cloud deployments You will be joining a highly collaborative and smart engineering team, learning from some ...

Site Reliability Engineer - SRE

Hiring Organisation
Sanderson Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
scale systems sustain-ably through mechanisms like automation. Looking for someone from a software development background Ideal Candidate: Very strong engineering skills in Java, JavaScript or Python Open Telemetry experience Must have Core Java/Python Must have experience as an SRE knowledge of Python Data Structures Strong knowledge ...

Senior Front Office Developer - Trading

Hiring Organisation
CMC Markets UK Plc
Location
City of London, London, United Kingdom
Employment Type
Permanent
team within the Pricing and Risk area , where youll work on our low latency, high-frequency trading platform . You will use cutting-edge Java programming techniques so experience in this area is essential . As a Senior Developer, youll not only code but also take on key design responsibilities … role that will require you to work within our London office (near Liverpool street) 5 days on site per week . WhatYoullDo Expert Level Java Development: You will apply your in-depth knowledge of the Java programming language (21 + ) to implement world class trading and pricing systems . Collaborative ...

ACBS Developer

Hiring Organisation
83zero Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£450 - £500/day
develop, and maintain solutions within FIS ACBS Customize and enhance ACBS Loan IQ/ACBS core modules (depending on platform scope) Develop and support Java/J2EE-based ACBS components Build and maintain interfaces between ACBS and upstream/downstream systems Perform batch processing, reporting, and data extraction activities Troubleshoot … Agile ceremonies and continuous improvement initiatives Produce technical documentation and support knowledge transfer Technical Skills Strong hands-on experience with FIS ACBS Proficiency in Java, J2EE, Spring, and related frameworks Experience with SQL, Oracle, or DB2 databases Knowledge of ACBS APIs, batch jobs, and reporting tools Experience with Unix/ ...

Senior Software Engineer

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
Member of Technical Staff (Go/Java/Rust) Up to 150,000 + Bonus + Benefits On-Site, London We are working with the first post-LLM open banking platform . The company is looking to add several Senior Engineers to their team in Liverpool Street, London. The platform … Cursor . If you have not used these or similar tools yet. This position is probably not for you. Backend Engineering experience using either Java, Golang or Rust. Experience working with Kafka/event-driven systems . Package & Benefits Up to 150,000 Base Salary + Bonus Medical & Dental Insurance ...