151 to 175 of 274 Java Jobs in London

Backend Engineer (Infrastructure)

Hiring Organisation
Randstad Technologies
Location
London, South East, England, United Kingdom
Employment Type
Contractor
Contract Rate
£600 - £650 per day
years in Infrastructure, Platform, or Backend engineering roles. Kubernetes: Solid experience with Kubernetes (ideally GKE ). Coding: Proficiency in at least two of: Java, Go, or Python (strong scripting/automation skills preferred). Cloud Platform: Comfortable with GCP (compute, networking, IAM, cost monitoring). Tooling: Familiarity with IaC ( Terraform ...

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 ...

Qantative Developer (OTC Pricing)

Hiring Organisation
Forward Role
Location
East London, London, United Kingdom
Employment Type
Permanent
closely with traders and quants on systematic strategies and tooling Supporting and enhancing production trading infrastructure What they're looking for Strong experience in Java, Python, and/or Rust Background in trading systems, HFT, market making, or electronic trading Solid understanding of distributed systems and low-latency design Comfortable ...

Software Engineer | Canvas | SVG | High-Performance Charting

Hiring Organisation
techstack Recruitment
Location
City of London, London, United Kingdom
grounding in algorithms, data structures, and software design Experience building complex systems — not just application-layer UI Exposure to a statically typed language (C++, Java, C#, Rust, etc.) Understanding of performance trade-offs in rendering and interaction Working knowledge of basic linear algebra Why this role stands ...

Staff Software Engineer, Generative AI, Applied Innovation Factory

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
degree or equivalent practical experience. 8 years of experience in software development and with data structures/algorithms in either C, C++, Python, Java or Go. 5 years of experience with ML design and ML infrastructure (e.g., model deployment, model evaluation, data processing, debugging, fine tuning). 5 years ...

Security Operations Analyst

Hiring Organisation
Anson Mccade
Location
North West London, London, United Kingdom
Employment Type
Permanent, Work From Home
Analyst Familiarity with threat intelligence frameworks and methodologies 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 Game Mathematician - Remote

Hiring Organisation
GNB Partnership
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
Salary negotiable
Excel, comfortable creating and adapting large and complex spreadsheets Worked with programming teams to create or adapt simulation programs in a variety of languages –java, C, C++ etc Has strong expertise in Combinatorics, Probability Theory and Statistics Has knowledge of object-oriented program design Has a long-standing passion ...

Mobile Android QA Engineer

Hiring Organisation
Teksystems
Location
London, United Kingdom
Employment Type
Contract
Improve QA delivery through defining test strategies through coordination with multiple back-end teams Key Skills- Hands on mobile testing experience Strong Kotlin/Java experience Mobile engineering Expresso (Android) Automation skills to automate regression Tests (UI) 60% manual and 40% automation Must be able to Automate API's Make ...

Senior Product Engineer [Backend] (£80k-£100k + Equity) at Userled.io

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
make strategic technical decisions that directly resolve complex B2B buyer engagement challenges. The ideal candidate Strong technical depth in typed languages such as Go, Java, Rust, or C#, with a focus on building highly concurrent, secure systems. Proven experience with modern cloud architectures (AWS/GCP) and data technologies like ...

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 ...

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 ...

Senior Golang Engineer

Hiring Organisation
PCR Digital
Location
City of London, London, United Kingdom
Employment Type
Contract
Contract Rate
£600 - £650/day Inside IR35
deploying robust, scalable services and platforms that enable secure operations across an organization. Proven experience in programming and scripting languages (e.g., Go, Python, Bash, Java, JavaScript ). Minimum Qualifications Bachelor's degree in computer science (or similar) with 5+ years of relevant industry experience Significant experience with Golang … production services Track record of driving improvements in code quality, performance , etc. Experience leveraging ORMs to interact with databases efficiently Familiarity with Python, Java, Swift, C, C++ and/or Objective-C ; and JavaScript and/or Typescript/React is a plus ...

Senior Backend Engineer Golang - Security

Hiring Organisation
PCR Recruitment Limited
Location
City of London, London, United Kingdom
Employment Type
Contract, Work From Home
Contract Rate
£600 - £650 per day + Inside IR35
deploying robust, scalable services and platforms that enable secure operations across an organization. Proven experience in programming and scripting languages (e.g., Go, Python, Bash, Java, JavaScript ). Minimum Qualifications Bachelor's degree in computer science (or similar) with 5+ years of relevant industry experience Significant experience with Golang … production services Track record of driving improvements in code quality, performance , etc. Experience leveraging ORMs to interact with databases efficiently Familiarity with Python, Java, Swift, C, C++ and/or Objective-C ; and JavaScript and/or Typescript/React is a plus ...

Full-Stack Engineer - Java/Angular/AI - Financial Services

Hiring Organisation
Robert Walters
Location
London, South East, England, United Kingdom
Employment Type
Full-Time
Salary
£50,000 - £70,000 per annum
secure Driving engineering best practices across testing, automation, and performance Working closely with product and engineering stakeholders to deliver robust solutions Technology Environment Java and Spring Boot (low-latency) Distributed systems and microservices architecture AI Skills mandatory Angular or TypeScript (full-stack capability beneficial) Cloud and containerisation technologies CI/… automated testing, and observability tooling Requirements Strong experience in Java and backend development Experience building and scaling distributed systems in production environments Solid understanding of software architecture and system design Experience working in financial services or other regulated environments Exposure to the full software development lifecycle Familiarity with modern development ...

Backend Java Engineer

Hiring Organisation
Alexander Mann Solutions - Contingency
Location
London, United Kingdom
Employment Type
Contract
across Business Services, Corporate banking, Wealth Management, Group Functions, Retail and Investment Banking. On behalf of this organisation, AMS are looking for a Backend Java Engineer for a 6 month contract based in London (2 days per week) with remote working available (hybrid). Purpose of the role: Join … issues. Support and oversee junior engineers and act as a subject matter expert. The skills you'll need: Solid practical and theoretical knowledge of Java software development. Strong experience of Spring Boot/Micronaut. An understanding of Kubernetes/Docker. Excellent understanding of AWS (deployment/configuration) Message-driven architectures ...

Java Technical Lead - London, Wembley

Hiring Organisation
Adecco
Location
London, United Kingdom
Employment Type
Permanent
Salary
£75000 - £80000/annum + Benefits
Title: Java Technical Lead Salary: Paying up to £80,000 per annum Location: Wembley London - 5 days on-site Our client, a well-established and diversified multinational organisation, is seeking a Java/DevOps Technical Lead to join their team. Skills Solid Experience in Java development with significant, demonstrable experience … design principles, OAuth2 authentication flows (including FusionAuth integration), and DMARC-compliant transactional email logic via SendGrid. Duties Engineering Standards: Define and enforce the clients Java and Node.js coding standards across the team - with a specific focus on robust exception handling, ninary stream handling, structured logging via Application Insights, and adherence ...

Global Ecommerce Software Engineering Manager

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
delivering scalable applications for the Online Store. The ideal candidate will have extensive experience in managing engineering teams and a strong background in Java and Agile methodologies. Responsibilities include project planning, team leadership, and driving innovation in software solutions. Apple offers a diverse and inclusive work environment, emphasizing the value ...

Senior Platform Architect, Trading Systems Modernization

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
involves assessing current legacy systems and defining a clear technical roadmap for modernization. Candidates should have robust experience in investment banking and familiarity with Java and .NET systems. The position requires on-site presence three days a week in London, with both permanent and contract arrangements considered. #J-18808-Ljbffr ...

Software Engineering Manager - Lead Scalable Web Apps

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Online Store. You will oversee software engineers, manage project execution, and drive innovation within the team. The ideal candidate has strong experience in Java, Spring MVC, and leading software engineering teams in eCommerce. Join us to help create accessible products that serve everyone. #J-18808-Ljbffr ...

Site Reliability Engineer, Region Services & CI/CD

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
Code, enhancing operational excellence, and solving complex technical challenges. Candidates should have deep knowledge in systems engineering, programming experience in languages like Python or Java, and a passion for cloud computing. Amazon promotes work-life balance and supports diverse experiences in the workplace. #J-18808-Ljbffr ...

Principal Platform Engineer: AI, Reliability & Leadership (Hybrid/Remote)

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
This full-time role involves collaborating with various teams to enhance reliability and scalability of platforms. Candidates should have extensive backend experience, preferably in Java and Spring Boot, along with skills in event-driven systems and cloud environments. Benefits include generous holiday allowance and support for professional development. #J ...

Senior Solutions Consultant, Open Data Platform

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
ability to solve complex deployment issues. Ideal candidates should have over 10 years of experience in customer engineering and comfort with programming in Java, Python, or Scala. Travel may be required up to 50% of the time. #J-18808-Ljbffr ...

Senior Backend Engineer (Go/AWS) – PM-Free Autonomy + Equity

Hiring Organisation
Jobleads-UK
Location
Greater London, England, United Kingdom
designing architectures using Golang and AWS, leading API development, and making strategic decisions. Ideal candidates will have strong technical skills in languages like Go, Java, or Rust, along with cloud architecture experience. This high-impact position offers exceptional autonomy and opportunities for equity in a growing firm supported by major ...