1 to 25 of 27 Remote Java Jobs in the City of London

Job Specification – SC Cleared Java Architect (Contract) – London Job Title: SC Cleared Java Architect Location: London (Hybrid – 2–3 days onsite per week, remainder remote) Contract Type: Contract (Outside IR35 preferred) Duration: 6–12 months (with potential extension) Clearance Requirement: Active SC (Security Clearance) – must be valid and transferable Role Overview We are seeking an experienced Java Architect with current … clearance to join a large-scale transformation programme within a secure government/defence environment. The successful candidate will provide technical leadership, architectural direction, and hands-on expertise across Java-based platforms, ensuring solutions are robust, scalable, and compliant with security and regulatory standards. Key Responsibilities Define and own the Java application architecture and integration patterns. Provide technical leadership to … architecture reviews, risk assessments, and technical governance. Mentor engineers and contribute to building a strong technical culture. Required Skills & Experience Active SC clearance (mandatory). Strong background as a Java Architect/Senior Java Developer with architecture responsibilities . Proven experience with: Java 11+/Spring Boot/Spring Cloud Microservices and containerisation (Docker, Kubernetes, OpenShift) Cloud platforms (AWS, Azure More ❯

Job Specification – SC Cleared Java Architect (Contract) – London Job Title: SC Cleared Java Architect Location: London (Hybrid – 2–3 days onsite per week, remainder remote) Contract Type: Contract (Outside IR35 preferred) Duration: 6–12 months (with potential extension) Clearance Requirement: Active SC (Security Clearance) – must be valid and transferable Role Overview We are seeking an experienced Java Architect with current … clearance to join a large-scale transformation programme within a secure government/defence environment. The successful candidate will provide technical leadership, architectural direction, and hands-on expertise across Java-based platforms, ensuring solutions are robust, scalable, and compliant with security and regulatory standards. Key Responsibilities Define and own the Java application architecture and integration patterns. Provide technical leadership to … architecture reviews, risk assessments, and technical governance. Mentor engineers and contribute to building a strong technical culture. Required Skills & Experience Active SC clearance (mandatory). Strong background as a Java Architect/Senior Java Developer with architecture responsibilities . Proven experience with: Java 11+/Spring Boot/Spring Cloud Microservices and containerisation (Docker, Kubernetes, OpenShift) Cloud platforms (AWS, Azure More ❯

and attribute-based access controls - Cryptographic protocols and secure key lifecycle management - Securing microservices, APIs, and DevSecOps best practices Skilled in penetration testing and hands-on coding with JavaScript, Java, or Python Strong understanding of vulnerability scanning, remediation, and vendor management Collaborative mindset with the ability to partner across engineering, security, and product teams Desirable Skills: Hands-on configuration, deployment More ❯

business. You'll work across the full tech stack using JavaScript and Vue.js on the front end, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore new technologies and use the best tool for the job as well as own your More ❯

Foundry expertise or transferable, client facing data engineering experience with large-scale data platforms such as: Snowflake, Databricks, AWS Glue/Redshift, Google BigQuery Software engineering skills in Python, Java, or TypeScript/React. Strong data modelling, pipeline development, and API design experience. Excellent problem-solving and communication skills. Why This Role Stands Out Impactful work at the intersection of More ❯

dynamic, cross-functional team helping to build and evolve scalable enterprise applications used in complex finance environments. Key Requirements: Proven experience in technical architecture and designing scalable solutions. Strong Java and Spring Boot backend development expertise. Solid understanding of RESTful API design and integration. Experience with ReactJS for frontend development. Strong knowledge of SQL and database design. Previous experience working More ❯

dynamic, cross-functional team helping to build and evolve scalable enterprise applications used in complex finance environments. Key Requirements: Proven experience in technical architecture and designing scalable solutions. Strong Java and Spring Boot backend development expertise. Solid understanding of RESTful API design and integration. Experience with ReactJS for frontend development. Strong knowledge of SQL and database design. Previous experience working More ❯

problem solving skills You're comfortable taking ownership of projects and mentoring more junior team members You have strong TypeScript skills, combined with any backend programming language (e.g. Python, Java, C++, C#) You're happy to work with the following tech stack (you don't need experience with all): Elixir, Ember, Elm, Phoenix, LiveView, Python, PostgreSQL, AWS, Docker You have More ❯

LoadRunner/JMeter. Experience in testing large-scale micro services-based web applications preferably media based. Automating tasks using scripting languages like Scala/Python. Coding in languages like Java/Scala/Groovy. Working with databases like MongoDB/MySQL. Good understanding of Build tools like Gradle, Docker etc. Working knowledge of using Monitoring tools like Prometheus, Grafana, Elasticsearch More ❯

LoadRunner/JMeter. Experience in testing large-scale micro services-based web applications preferably media based. Automating tasks using scripting languages like Scala/Python. Coding in languages like Java/Scala/Groovy. Working with databases like MongoDB/MySQL. Good understanding of Build tools like Gradle, Docker etc. Working knowledge of using Monitoring tools like Prometheus, Grafana, Elasticsearch More ❯

Lead Java Developer 6 Months Hybrid working 1 day a week on site £500-£550 per a day inside IR35 Talent Consulting is seeking an experienced Lead Java Developer to join one of our government clients on a large-scale digital transformation programme. You’ll lead a team delivering modern, cloud-native solutions—rebuilding internal systems, creating efficient digital processes … and ensuring scalable, high-quality software delivery. As Lead Java Developer you will be responsible for: Design and develop modern, cloud-based services using Java and Node.js. Build and maintain microservices and UI components, ensuring seamless integration between front-end interfaces and back-end APIs. Implement event-driven solutions using Kafka and other messaging technologies. Develop, deploy, and manage scalable … UI experiences. As a Lead Developer you will have the following experience: Proven experience leading and mentoring development teams. Extensive hands-on experience developing modern cloud-native applications using Java and Node.js. Strong background in microservices architecture, including both front-end (UI) and API components. Proficiency in Kafka and event-driven design patterns. Deep understanding of AWS cloud services and More ❯

Lead Java Developer 6 Months Hybrid working 1 day a week on site £500-£550 per a day inside IR35 Talent Consulting is seeking an experienced Lead Java Developer to join one of our government clients on a large-scale digital transformation programme. You’ll lead a team delivering modern, cloud-native solutions—rebuilding internal systems, creating efficient digital processes … and ensuring scalable, high-quality software delivery. As Lead Java Developer you will be responsible for: Design and develop modern, cloud-based services using Java and Node.js. Build and maintain microservices and UI components, ensuring seamless integration between front-end interfaces and back-end APIs. Implement event-driven solutions using Kafka and other messaging technologies. Develop, deploy, and manage scalable … UI experiences. As a Lead Developer you will have the following experience: Proven experience leading and mentoring development teams. Extensive hands-on experience developing modern cloud-native applications using Java and Node.js. Strong background in microservices architecture, including both front-end (UI) and API components. Proficiency in Kafka and event-driven design patterns. Deep understanding of AWS cloud services and More ❯

as code Kafka (Confluent Cloud) for event-driven architecture GitHub Actions for CI/CD DataDog for observability Containerised microservices architecture What We’re Looking For Strong programming background (Java or TypeScript preferred) Experience designing scalable, resilient cloud infrastructure Familiarity with event-driven systems and Kafka Hands-on experience with AWS and infrastructure automation tools (Pulumi, Terraform, etc.) Understanding of More ❯

as code Kafka (Confluent Cloud) for event-driven architecture GitHub Actions for CI/CD DataDog for observability Containerised microservices architecture What We’re Looking For Strong programming background (Java or TypeScript preferred) Experience designing scalable, resilient cloud infrastructure Familiarity with event-driven systems and Kafka Hands-on experience with AWS and infrastructure automation tools (Pulumi, Terraform, etc.) Understanding of More ❯

AI-powered coding. Collaborate with cross-functional engineering and architecture teams to align client solutions with delivery capability and innovation strategy. 💡 What you’ll bring A solid engineering background (Java, C#, or similar), ideally with 3–5 years of hands-on build and architecture experience. Proven experience leading end-to-end pre-sales solutioning within application services or digital transformation More ❯

AI-powered coding. Collaborate with cross-functional engineering and architecture teams to align client solutions with delivery capability and innovation strategy. 💡 What you’ll bring A solid engineering background (Java, C#, or similar), ideally with 3–5 years of hands-on build and architecture experience. Proven experience leading end-to-end pre-sales solutioning within application services or digital transformation More ❯

teams and ensure architectural alignment Evaluate technologies, risks, and business impact. Communicate updates to stakeholders on progress and decisions. Requirements 5+ years in Web3 with architectural experience; strong Solidity, Java, and EVM expertise; Rust/JS a plus. Deep Bitcoin knowledge, applied cryptography, secure protocol design, and smart contract auditing. Experience with consensus algorithms, Sybil control mechanisms, and blockchain interoperability. More ❯

ACME, EJBCA etc as well as define CAB compliant x.509 certificate profiles ( from scratch ) for multiple frameworks ( i.e. WebTrust/ETSI/etc) Experience in software development, preferably in Java and Python desirable . In depth experience with key ceremonies Experience in system development lifecycle and system integration is desirable. Proficiency in cryptography programming, nShield HSM (Hardware Security Module) Proficient More ❯

Penetration testing You have a keen interest in Cyber Security and understanding of key concepts and protocols You can code with any OO programming language (e.g. Python, C++, C#, Java) You have experience of using different operating systems and networking technologies You have a good understanding (and interest in) low level concepts including operating systems and networking You have excellent More ❯

Fidessa Developer (Java Spring Boot API) London to £135k Are you an experienced Java Developer with a strong knowledge of Fidessa and an interest in Capital Markets? Join the Investment Management division of a global bank, where you'll play a key role in shaping their trading technology by enhancing and evolving the Fidessa Order Management System. You'll work … a fast-paced financial environment. Your Role As a Fidessa Developer, you will: Design and implement new features and enhancements on the Fidessa platform Build high-performance services using Java, Spring Boot and RESTful APIs Collaborate closely with stakeholders across business and technology teams Drive technical solutions from concept to deployment within a Capital Markets context Location/WFH: You … ll be based in the London office and have flexibility to work from home once a week. About you: You have a deep knowledge of Java including Spring Boot and APIs You have strong experience of developing on Fidessa OMS You have an understanding of Capital Markets You have excellent communication and collaboration skills You are degree educated in Computer More ❯

Fidessa Developer (Java Spring Boot API) London to £135k Do you have strong Java coding skills combined with experience of developing on the Fidessa order management system? You could be progressing your career at the Investment Management arm of a global bank, gaining an indepth knowledge of Capital Markets. As a Fidessa Developer you will design and develop new features … Location/WFH: You'll be based in the London office and have flexibility to work from home once a week. About you: You have a deep knowledge of Java including Spring Boot and APIs You have strong experience of developing on Fidessa You have an understanding of Capital Markets You have excellent communication and collaboration skills You are degree … educated in Computer Science or similar technical or numerate discipline What's in it for you: As a Fidessa Developer (Java Spring Boot API) you will receive a competitive Salary to £135k Bonus Pension One day work from home per week Continuous training and career progression opportunities Apply now to find out more about this Fidessa Developer (Java Spring Boot More ❯

Graduate/Junior Developer, Python, Linux, C#, Java - London (Teck stack: Graduate/Junior Developer, Python, Linux, C#, Java, .NET 9, 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, and delight customers by delivering inbound 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 be created, and how it should be built. Within their setup those decisions are … roles would be suitable Graduate/Junior Developer who have recently graduated from university and have a basic understanding of any of the following technologies: Python, Linux, C# or Java; which might have been acquired as part of your degree course or through a placement year in industry. At the center of our client's culture is freedom and openness More ❯

A leading global investment bank is seeking a Java Developer/eTrading Strategist to join its London Rates eTrading team . This front-office role focuses on designing, building, and optimising low-latency Java trading systems that power the bank's global Rates business. The Role You will engineer high-performance Java components for algorithmic execution, pricing, and market connectivity. … with traders, quants, and technologists, you'll deliver production-ready eTrading solutions with a focus on latency, scalability, and resilience . Key Responsibilities Design and implement low-latency, multithreaded Java applications for Rates eTrading. Develop and optimise execution algorithms, smart order routers, and pricing engines . Profile and tune Java applications for GC optimisation, lock contention, and throughput . Implement … real-time monitoring, logging, and alerting frameworks . Partner with quants to integrate pricing models into Java-based trading systems . Conduct rigorous code reviews, testing, and benchmarking . Candidate Profile Degree in Computer Science, Engineering, Mathematics , or related field. 10+ years' experience in Java development within low-latency trading systems . Deep knowledge of Java concurrency, GC tuning, memory More ❯

Application Architect Java & Web Apps (eDV Clearance) Remote £60,000 - £70,000 + Clearance Bonus + Yearly Bonus + Training + Progression + Company Benefits Are you a Application Architect or similar that has active eDV clearance that wants to work for the tech worlds global leader that helped put a man on the moon? Do you want to work … THE ROLE: Work from home and secure sites in your local area Work collaboratively with other team members to build robust Web Apps Check and sign off code in Java and other Web App languages Discuss the SDLC with senior team members and management Solve complex technical challenges THE PERSON: Web App development or Architect experience eDV Clearance that is … active Reference: BBBH21973 Keywords: Java, Web Apps, Architect, Architecture, Remote, Hybrid, eDV, Enhanced Developed Vetting, Security Cleared, MoD, If you are interested in this role, click 'Apply Now' to forward an up-to-date copy of your CV. We are an equal opportunities employer and welcome applications from all suitable candidates. The salary advertised is a guideline for this position. More ❯

pre-sales solutioning process, from discovery and scoping through to solution design, proposals, and client presentations. Design and present solutions for application modernisation (for example, moving from 3-tier Java architectures or Oracle platforms to modern cloud-native platforms). Build propositions around cloud solutions (Azure, AWS, GCP) and AI-enabled software engineering (AI in coding, automation, testing). Collaborate … differentiated. Influence senior client stakeholders, acting as a trusted advisor. Candidate Profile Proven experience as a Solution Architect in a consulting or pre-sales environment. Strong software development background (Java, Oracle, cloud-native). Hands-on experience in application modernisation and migrating clients from legacy estates to modern platforms. Broad cloud expertise across Azure, AWS, or GCP. Strong communication and More ❯