1 to 25 of 100 Java Jobs in the City of London

Senior Java Software Engineer

Hiring Organisation
TetriQ Solutions
Location
City of London, London, United Kingdom
Please find the Job Description:- Role: Senior Java Developer Location: Farnborough/UK (Hybrid) Hybrid mode of work Exp range:8+ years Mandatory skills: Java Springboot, Java 17/11, AWS, Pipeline, Financial domain, Spark. JD: Java Tech Lead job involves leading and mentoring a Java development team, analyzing … conducting code reviews, troubleshooting complex technical issues, and driving innovation with new technologies. Key Responsibilities: • Team Leadership: Lead, mentor, and guide a team of Java developers in the development lifecycle. • Project Management: Oversee Java development projects from conception to completion, ensuring alignment with project requirements and timelines. • Technical Expertise: Design ...

Senior Software Engineer

Hiring Organisation
Hlx Life Sciences
Location
City of London, London, United Kingdom
code, testing, and CI/CD best practices Mentor junior engineers and support technical decision-making Required Skills & Experience Strong programming experience in Python, Java, or Go Experience building backend services, APIs, and distributed systems Strong knowledge of cloud platforms (AWS, GCP, or Azure) Experience with containerisation and orchestration (Docker ...

API Automation Engineer

Hiring Organisation
Impellam Group
Location
City of London, London, United Kingdom
Financial Services Lorien's leading banking client is looking for a skilled API Automation Engineer with strong experience of with Rest API testing in Java to join our London-based team. The ideal candidate would have experience of working with Cloud Technologies and Streams-process platforms. This role is based … Umbrella. Working in a Hybrid Model of 2 days a week on site. Key Skills and Experience Rest API automation testing in Java Java library and framework: Lombok, Spring Boot Stub testing experience: yaml, wiremock or Mockito, SOAP API testing Programming languages experience in OOP: Java or C# tools used ...

Data Engineer

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£550 - £560 per day
collaborating with skilled professionals to deliver high-quality results. What you'll be doing: Design, develop, and maintain scalable data pipelines and microservices using Java and Spring Boot. Containerise applications with Docker and deploy them efficiently. Integrate data from multiple sources, ensuring flows are clean, reliable, and consistent. Optimise pipeline ...

Full Stack Engineer

Hiring Organisation
BNY
Location
City of London, London, United Kingdom
Scrum or Kanban. Hands-on AI development using modern tools and IDEs (e.g., Windsurf) and familiarity with integrating AI into products. Strong expertise in Java (preferably Spring) and architectural patterns for scalable, observable, and testable systems. Proficiency in modern engineering practices including CI/CD (e.g., GitLab), automated testing (JUnit ...

Full Stack Engineer ( Banking )

Hiring Organisation
Experis
Location
City of London, London, United Kingdom
experience building modern web and mobile applications across frontend and backend Proficient with modern frontend frameworks (e.g. React, TypeScript) and backend technologies (e.g. Node.js, Java, Python, or similar) Solid experience with CI/CD pipelines and DevOps tooling (e.g. Jenkins, Ansible), with exposure to containers and Kubernetes Deep understanding ...

Full Stack Engineer /Software Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£60 - £80/hour Negotiable
distributed environment that prioritizes engineering excellence: Core Stack: React, Next.js, and TypeScript. Architecture: Micro-frontends (Capla/Vue) and Module Federation. Data: Integrating with Java/Spring Boot services via REST and GraphQL. Cloud & DevOps: Kubernetes (BKS), AWS, and advanced observability (Metrics, Dashboards, Alerts). What You Will ...

Senior GCP Data Engineer (Outside IR35 | Contract)

Hiring Organisation
Casamentero Consulting LLP
Location
City of London, London, United Kingdom
Google Cloud Platform (GCP) Strong expertise in: BigQuery Dataflow/Apache Beam Kafka/Spark/Big Data tools Proficiency in Python/Java/SQL Experience with: Terraform Kubernetes CI/CD pipelines Strong understanding of data modelling Nice to Have DBT experience Banking/Financial Services domain experience ...

Software Engineer

Hiring Organisation
Understanding Recruitment
Location
City of London, London, United Kingdom
will bridge the gap between product and real-world use, ensuring solutions deliver meaningful impact. Requirements: Strong programming skills in either: Backend: Python, C++, Java, Rust OR frontend: JavaScript/TypeScript (React, Angular, etc.) Strong communication skills and ability to work directly with users Willingness to travel Right to work ...

Java Software Engineer

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of $13 billion. Job Description- Job Title: Senior Java Engineer Must Haves- Java, Kafka, Microservices, Spring Boot, Postgres and AWS The Opportunity: We are looking for ambitious and motivated individuals who are keen … enabling customers to manage their finances and protect and build their financial futures. Purpose: To cope with our expansion, we are looking for Senior Java Engineers to join our mission and help us build a global product that's scalable, reliable and secure. You will work in tribes alongside product ...

Senior Full Stack Engineer

Hiring Organisation
Access Computer Consulting
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£400 - £440/day
operated large-scale systems end-to-end, not those with superficial exposure or purely design-focused experience. Candidates must have strong experience of Java Full Stack, React, Kubernetes & Docker. Experience in building responsive, component based user interfaces using modern front end frameworks. Hands on expertise in API design and development ...

Senior Software Engineer

Hiring Organisation
Fruition Group
Location
City of London, London, United Kingdom
Employment Type
Permanent
adopt modern cloud-native technologies and best practices Promote high engineering standards across code quality, testing, and automation Skills: Strong backend engineering capability (Golang, Java, or .NET) Strong hands-on experience building and operating distributed systems in cloud environments (AWS or GCP) Kubernetes and container orchestration experience Infrastructure as Code ...

Quantitative Developer (Global Hedge Fund)

Hiring Organisation
Venture Search
Location
City of London, London, United Kingdom
live trading environments Ensure best practices in software development, testing, and documentation Required Qualifications Strong programming skills in C#, Python and/or C++ (Java or other languages a plus) Solid understanding of data structures, algorithms, and software engineering principles Experience working with large datasets and time-series data Familiarity ...

Developer Golang

Hiring Organisation
CBTS
Location
City of London, London, United Kingdom
Client: Largest American Credit Card Company Location: Burgess Hill 3 days/week Years of Exp: 6-9 years Skills: Go, Java, Git, REST, Jenkins, NoSQL, Postgres/ql £40-£50/hr Inside IR35 Visa sponsorship is not available. We're looking for an enthusiastic, diligent Golang Software Engineer ...

Quality Assurance Automation Engineer

Hiring Organisation
Harnham
Location
City of London, London, United Kingdom
adoption and expansion of test automation across the wider QA community. Your Skills and Experience You bring • Strong commercial experience in QA automation using Java or Kotlin. • Hands‐on use of AI tools to enhance productivity. • A deep understanding of OOP principles. • Proficiency in HTML, CSS, JavaScript, and modern ...

Global Banking & Markets - Trading Systems Support Engineer - Associate/Vice President - London

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
Site Reliability Engineering (SRE) practices, including automation, monitoring, and incident response. Proficiency in at least one scripting or programming language (e.g., Python, Shell Scripting, Java, C++) for automation, tooling, and operational tasks. Experience with distributed systems design, maintenance, and troubleshooting. Knowledge of financial markets, electronic trading workflows ...

Senior Java Developer (Low-Latency Payments Systems)

Hiring Organisation
RE Partners
Location
City of London, London, United Kingdom
their goals. The 3 G’s of RE: “Get Shit Done.” “Get Over Shit.” “Give a Shit.” We are seeking an experienced and opinionated Java Developer to join our high-performing engineering team, working on l ow latency , high-throughput systems in the payments processing domain. This hybrid role … offers the opportunity to build scalable, real-time services using modern technologies. If you’re passionate about performance, have strong Core Java and SpringBoot expertise, and thrive in a collaborative yet opinionated engineering culture, we want to hear from you. Key Responsibilities : Design, develop, and optimize low-latency, high-throughput ...

Contract Senior Backend Engineer

Hiring Organisation
Formula Recruitment
Location
City of London, London, United Kingdom
help them scale up their AI platform and make a real impact. They are looking for an engineer with strong commercial use of either Java, Kotlin or Scala and proficiency with Python to help modernise their codebase. Responsibilities: Build and scale backend systems for AI-driven automation products Collaborate with ...

Senior WMS Developer

Hiring Organisation
VIQU IT Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Salary
£70,000
Oracle or SQL Server) and Linux environments. Experience with integrations (SFTP, APIs, web services, message-based systems) and Git . Desirable: .NET/C#, Java, Centiro or other CMS, ServiceNow/ITSM tools , Agile/DevOps experience, ITIL/change management awareness. Additional Information Flexible hybrid working – candidates from anywhere ...

Head of Quality Engineering

Hiring Organisation
Infoplus Technologies UK Ltd
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
From £650 to £700 per day
Required Skills & Experience Technical Expertise (Exceptional Level) 2025+ years in QE engineering, transformation, and automation leadership. Mastery of: o Playwright, Appium, Selenium, Cypress, Java o API Automation (REST Assured, Karate, Postman) o Performance (JMeter, LoadRunner) o Cloud native testing (Azure, AWS, GCP) o Test orchestration, CI/CD pipelines ...

Technical Lead / Solution Engineer

Hiring Organisation
I3 Resourcing Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
Experience Essential Strong Salesforce (Sales Cloud) experience Proven background as a Technical Lead/Solution Architect/Solution Engineer Experience with: AWS (Glue, AppFlow) Java development API integrations (REST/SOAP) CI/CD pipelines & cloud deployment (AWS/Azure) Experience working across business requirements/user journeys (BA background ...

Solution Engineer

Hiring Organisation
i3
Location
City of London, London, United Kingdom
Experience Essential Strong Salesforce (Sales Cloud) experience Proven background as a Technical Lead/Solution Architect/Solution Engineer Experience with: AWS (Glue, AppFlow) Java development API integrations (REST/SOAP) CI/CD pipelines & cloud deployment (AWS/Azure) Experience working across business requirements/user journeys (BA background ...

Pricing & Market Data (Migration Specialist)

Hiring Organisation
HCLTech
Location
City of London, London, United Kingdom
Control (legacy) and Prime EDM. Architecture : Cloud-native migrations (AWS/Azure), API design, and SQL/NoSQL performance tuning. Scripting : Python (preferred) or Java for custom business logic and automation. Pricing Logic : Strong understanding of EOD (End of Day) vs. Real-time pricing, forward curve construction, and basis risk ...

Senior Software Engineer

Hiring Organisation
LinuxRecruit
Location
City of London, London, United Kingdom
next tech unicorn, together, in the same room, ask the big players. What you’ll need to succeed: Strong experience building production quality software (Java, TypeScript, React or Python) Curiosity and adaptabilit y: you learn new technologies quickly and apply them effectively Hunger and drive: you’re comfortable working ...

Lead Software Engineer

Hiring Organisation
Spires Online Tutoring
Location
City of London, London, United Kingdom
Senior Full Stack or Software Developer 2+ years of proven management experience Strong experience with React and modern frontend development Backend development experience (Java preferred) Solid knowledge of JavaScript, HTML, and CSS Experience working with PostgreSQL databases Experience using Git in a collaborative development environment Ability to communicate technical concepts ...