1 to 25 of 102 Java Jobs in the City of London

Principal Java Developer / Consultant

Hiring Organisation
Client Server
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Principal Java Developer/Consultant (Java Spring Boot AWS) London/WFH to £120k Are you an experienced Java Developer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. What's in it for you: Salary to £120k Pension, Life … your family, including mental health Travel Insurance Charitable giving Gym membership for you and your family Flexible holiday scheme Your role: As a Principal Java Developer/Consultant you will lead client projects, often long term technical transformations, designing, developing and delivering a range of projects for clients, mainly within ...

Senior Test Engineer (SC Cleared)

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day
solutions across the full lifecycle Hands-on expertise with Microsoft-based environments (e.g. Azure testing tools, AI platforms) Proficiency in one or more: Python, Java, JavaScript, SQL, or R Proven experience in: AI/Generative AI testing RAG (Retrieval-Augmented Generation) solution validation (e.g. RAGAS framework) CI/CD, DevOps ...

AWS Engineer

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent, Work From Home
Developer Associate, or DevOps Engineer are highly desirable Desirable Experience Any exposure to the following would be advantageous: React or modern front-end frameworks Java, Go, C#, Rust, or other strongly typed languages Internal platform engineering or developer platform ownership Event-driven architectures using EventBridge, Kinesis, Kafka ...

Solutions Architect

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
security control Security & Resilience: Deep understanding of threat modelling, authentication patterns, and observability Modern Development: Familiarity with languages such as Ruby, Python, or Java, alongside CI/CD, TDD, and containerisation Communication: Exceptional ability to simplify complex topics and build consensus across diverse groups Desirable Attributes Experience with enterprise ...

Data Engineer

Hiring Organisation
Randstad Technologies Recruitment
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£300 - £400/day
Data Engineer you will have the following key skills Cloud: GCP Warehousing: BigQuery/Snowflake Orchestration: Airflow Backend: Python, SQL, Shell Languages: Scala/Java DevOps: Terraform, Docker, Kubernetes Observability: Monte Carlo BI: Looker AI/ML: MLOps London | 12 Months Contract |£400 a day Inside IR35 If you want ...

Infrastructure Tester

Hiring Organisation
CBSbutler Holdings Limited trading as CBSbutler
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£45000 - £50000/annum
automated testing. You'll also bring: Proven hands-on experience in manual testing, supported by automation testing experience. Experience testing large enterprise systems, including Java and Oracle web applications. Experience testing Windows 11 and associated applications within an Evergreen environment. Knowledge of cloud and infrastructure environments (Azure ...

Technical Solution Architects

Hiring Organisation
Peregrine
Location
City of London, London, United Kingdom
Employment Type
Permanent
microservices, event-driven architecture Cloud & Infrastructure Expertise in AWS, Azure, or GCP Infrastructure as Code (Terraform, ARM, CloudFormation) Programming & Development Strong coding background (e.g., Java, C#, Python, Node.js) Understanding of software development lifecycle (SDLC) Data & Storage SQL and NoSQL databases (e.g., PostgreSQL, MongoDB) Desirable skills: BPSS/NPPV ...

Java Software Engineer

Hiring Organisation
Michael Page
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£50000 - £60000/annum
role of Java Software Engineer involves designing, developing, and maintaining robust Java-based applications. This position is ideal for those with a strong technical background and a passion for delivering high-quality solutions within the business services industry. Client Details The hiring organisation is a well-established and respected entity … medium-sized company, they focus on delivering innovative technology solutions to their clients, ensuring efficiency and excellence in every project. Description Develop and maintain Java-based software applications to meet client requirements. Collaborate with cross-functional teams to design and implement efficient technical solutions. Perform code reviews to ensure high ...

Data Engineer

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500/hour
Working within a cloud-based, containerised environment (Kubernetes) Contributing to a wider data platform modernisation programme Supporting both batch and streaming workloads Tech: Python, Java, Spark, Airflow, SQL, Cloud (AWS/Azure), Kubernetes (Kafka/streaming nice to have) Details: £700/day (Umbrella) 6-month contract 3 days onsite ...

Product Engineer

Hiring Organisation
Bloc Recruitment
Location
City of London, London, United Kingdom
Employment Type
Permanent
Partner closely with Product to challenge and sharpen requirements before they hit the backlog What we're looking for Strong TypeScript/JavaScript and Java/Kotlin NestJS, React, PostgreSQL or MongoDB (Not all required) Hands-on with AWS, Docker, Terraform, and modern CI/CD A genuine, practical understanding ...

Founding Engineer / Technical Lead

Hiring Organisation
Coburg Banks Limited
Location
City of London, London, United Kingdom
Employment Type
Permanent
telematics, automotive, fleet, or transport technology Geospatial systems and location intelligence Technical Environment Experience across several of the following is valuable: Python, TypeScript, Go, Java, or similar REST APIs and distributed architectures AWS and cloud infrastructure PostgreSQL and data-intensive systems Docker, CI/CD, observability, and reliability engineering Third ...

Principal Engineer (Java) - up to £105,000 + Bonus - Hybrid

Hiring Organisation
Involved Solutions
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 75,000 - 105,000 Annual
Principal Java Engineer (AWS/Microservices) Salary: Up to £105,000 + Bonus + Benefits Location: Coventry or Central London - Hybrid (2 days per week onsite) Working Hours: 40 hours per week - Full time Job Type: Permanent A globally established organisation is seeking an experienced Principal Java Engineer to shape … engineering excellence, defining technical standards and leading the design of scalable, high-availability systems across a modern cloud-native environment. Responsibilities for the Principal Java Engineer: Define and evolve engineering strategy, standards and best practices across your domain Lead technical direction across multiple engineering teams (on and offshore) and programmes ...

Quantitative Analyst

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent
Bachelors degree in engineering, computer science or another technical related subject. programming proficiency with at least one major programming or scripting language (e.g. C++, Java, Python) high level of communication skills and ability to work efficiently with colleagues across multiple areas Additional desirable Qualifications for Quantitative analyst Knowledge ...

Cyber Security Operations Specialist

Hiring Organisation
Anson Mccade
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£75,000
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 ...

Infrastructure Engineering Specialist - DV Cleared

Hiring Organisation
Adecco
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£350 - £650/day
VCentre, vCF) Windows/Linux/Mac Server management Containers/Kubernetes/VKS Networking and Storage Management Scripting languages (PowerShell, Bash, Python, Java) Automated system build tools (Ansible, Puppet, Terraform, etc.) Configuration management and CI workflows (git, subversion) Business Acumen: Contribute to the formulation of engineering strategy and influence ...

Microsoft AI Engineer / Azure Artificial Intelligence Engineer

Hiring Organisation
Huxley Associates
Location
City of London, London, United Kingdom
Employment Type
Permanent
Salary
£50000 - £90000/annum
solutions, including Azure OpenAI Service, Azure Cognitive Services, and Azure Machine Learning Requirements Extensive experience with Azure AI solutions, programming experience (Python, C#, or Java) This is a really interesting role and a great chance to join a team as they are really investing in their software development ...

Principal Java Developer / Consultant

Hiring Organisation
Client Server
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP 100,000 Annual
Principal Java Developer/Consultant (Java Spring Boot AWS) London/WFH to £120k Are you an experienced Java Developer, with technical project leadership and client facing skills? You could be progressing your career at a global technology consultancy. What's in it for you: Salary to £120k Pension, Life ...

Backend Engineer

Hiring Organisation
Revolut
Location
City, London, United Kingdom
Employment Type
Permanent
Salary
GBP Annual
Backend Software Engineer (Java) , Remote, UK About Revolut People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products including spending, saving, investing, exchanging, travelling, and more help our 75+ million customers ...

Senior Backend Engineer (Java/.Net & Microservices)

Hiring Organisation
ARM
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£500 - £550/day Inside IR35
Senior Backend Engineer (.NET/Java Microservices) Contract: Inside IR35 Duration: 6 Months+ Hybrid - 2 days per week on site in London We're seeking a Senior Backend Engineer to design, build and enhance scalable backend services and APIs within a complex enterprise environment. You'll play a key role … delivering modern microservices while contributing to technical design and engineering best practice. Key Responsibilities Design and develop backend services using C#/.NET and Java (Spring Boot) . Build and support REST APIs and microservices. Contribute to architecture, technical design and system integration. Troubleshoot, optimise and support production systems. Collaborate ...

Mid/Senior Backend Engineer (Java)

Hiring Organisation
We Love Alfa
Location
SW1A, City of Westminster, Greater London, United Kingdom
Employment Type
Permanent
/Senior Backend Engineer (Java) | Remote About Revolut People deserve more from their money. More visibility, more control, and more freedom. Since 2015, Revolut has been on a mission to deliver just that. Our powerhouse of products — including spending, saving, investing, exchanging, travelling, and more — help our 75+ million customers … keeps frameworks lean and focuses on what matters: clean, maintainable code, shipped fast with TDD, DDD, and continuous integration and delivery. Our stack includes Java 17/21, GCP, Kubernetes, Grafana, Prometheus, NewRelic, PostgreSQL, Redis, Spock, jOOQ, and Flyway. Up to shape what's next in finance ...

DevOps Engineer

Hiring Organisation
Hays Technology
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£650 - £750/day £650-£750 Umbrella PAYE
Ansible. Strong knowledge of CI/CD pipelines , particularly GitLab CI/CD. Working knowledge of at least one object-oriented programming language (e.g., Java). Deploying and managing Java Spring applications using Maven. Core Competencies: Highly proactive and ability to take ownership Experience working in a fast-paced environment ...

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 ...

Engineering Manager FinTech

Hiring Organisation
Run-Time Group Ltd
Location
City of London, London, United Kingdom
Employment Type
Permanent
software consistently. Candidate Requirements: Engineering Leadership Experience Proven track record managing and developing engineering teams (typically 515 engineers). Strong Technical Background Experience with (Java, C#.Net, Python), microservices, cloud platforms (AWS/GCP/Azure), and modern backend languages. FinTech or Regulated Industry Experience Understanding of payments, trading, banking … Responsibilities: Proven Engineering Leadership Experience leading multiple teams or managing managers in high-growth tech or fintech environments. Deep Technical Background Strong understanding of (Java, Python or .NET), microservices, cloud infrastructure (AWS/GCP/Azure), and modern backend stacks. FinTech Expertise Experience with payments, banking, trading, or regulated financial ...

Sr AI Solutions Consultant

Hiring Organisation
Jobleads-UK
Location
City Of London, England, United Kingdom
computer vision, and LLMs, to optimize document processing, data extraction, and decision-making workflows Programming and Development : Apply relevant programming skills (e.g., Python, Java, or .NET) to support solution development and customization within TotalAgility Technology Innovation : Identify opportunities to integrate emerging technologies into client solutions, driving innovation and competitive advantage … with cloud architecture and deployments, including designing scalable and secure cloud-based solutions Core Competencies Technical Skills Proficiency in relevant programming languages (e.g., Python, Java, .NET) to support solution development Experience with cloud architecture and deployments Understanding of enterprise security practices and compliance frameworks Knowledge of AI/ML model ...

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 ...