execution algorithms, risk engines, UI dashboards, middle office reconciliation, and account infrastructure. We emphasize event-driven, deterministic system design, real-time observability, and strong security. Our tech stack includes Java (low-latency), Python, Web UI (React/Ag-Grid), Aeron, ClickHouse, Kubernetes, and modern CI/CD tooling, with a strong focus on automation, scalability, and performance. AI-assisted development … to ensure high standards across the codebase. Use AI-driven coding tools (e.g., GitHub Copilot or similar) to accelerate development and improve productivity where appropriate. Requirements 5+ years of Java backend development experience, preferably in a trading or real-time system environment. Deep understanding of Java core internals, multithreading, memory models, and garbage collection. Proven experience in GC-free or More ❯
and we care more about aptitude and attitude than specific experience or qualifications. We are very open about how we deliver software. For the most part we code in Java, but you need not be an expert when you join us! We believe in clean coding, simple solutions, automated testing and continuous deployment. If you care enough to find elegant … The main part of our Tech Stack is listed below, we don't ask that you have experience in all of this, but if you do, that's great! Java, which makes up the majority of our backend codebase AWS & GCP - we're cloud-native Microservice based architecture Kubernetes (EKS) TeamCity for CI/CD (lots of team are releasing More ❯
and we care more about aptitude and attitude than specific experience or qualifications. We are very open about how we deliver software. For the most part we code in Java, but you need not be an expert when you join us! We believe in clean coding, simple solutions, automated testing and continuous deployment. If you care enough to find elegant … The main part of our Tech Stack is listed below, we don't ask that you have experience in all of this, but if you do, that's great! Java, which makes up the majority of our backend codebase AWS & GCP - we're cloud-native Microservice based architecture Kubernetes (EKS) TeamCity for CI/CD (lots of team are releasing More ❯
Full-stack Java Developer - Greenfield Trading System Location: Finsbury Square, London (Office-based, Monday to Friday) Salary Range: £60,000 - £80,000 Are you a talented and enthusiastic Full-stack Java Developer looking to build a brand-new trading system? My client, a leading FCA-regulated trading brokerage, is seeking a skilled developer to join a growing team of experienced … technologists and finance professionals. This role offers opportunities for technical ownership from day one as you work on a system built in Java and React Native. Why Join This Opportunity? Greenfield Project: Work on a brand-new system with no legacy tech debt. Direct Impact: As you contribute to a mission-critical flagship product, your work will directly shape the … and Qualifications: Required Qualifications: Bachelor's degree in Computer Science, Information Systems, or a related technical field. A minimum of 5-8 years of experience in application development. Strong Java/Spring/SpringBoot skills. Strong command of SQL (PostgreSQL is preferred) and ORMs (Hibernate/Spring Data). Experience in designing and implementing REST APIs. Experience writing unit/ More ❯
opportunity to impact the technical direction of the company. Key job responsibilities: Development and maintenance of Jacobi software, delivering quality web application code to production Development of code in Java, JavaScript, SQL, Python Assist in the ongoing operations and deployment of the software platform in AWS Respond and assist as necessary with high-severity operational incidents Participate in client interactions … insurance Basic qualifications: Bachelor's degree in IT, computer science, engineering or related discipline 0-5 years experience in software development Experience in the following will be highly regarded: Java web technologies such as servlets, JSP JavaScript, jQuery, React SQL and relational databases Python Container management technologies such as Docker, Kubernetes, Rancher Infrastructure automation tools such as Terraform, CloudFormation More ❯
are looking for a Senior Site Reliability Engineer/DevOps Engineer that has come from a Software Development Background in the past and who still has strong C# or Java or other similar OO development language combined with strong knowledge of DevOps tools like Kubernetes and/or Docker and Azure or AWS Cloud platforms. We are looking for a … Required Skills and Experience: Proven experience in a SRE/DevOps/Platform Engineering role and having previously worked in a Software Engineering role in .Net and C# or Java or similar OO development language. Proficiency in C# or Java or another OO development language – alongside knowledge of scripting languages like Bash, Python or PowerShell Production experience operating containerization technologies More ❯
this is the role for you!" Responsibilities Experience in a complex, multi-disciplinary environment, delivering products within specific time-scales and engaging with multiple senior stakeholders Deliver AWS based Java services through CI/CD and Infrastructure as code using Terraform Deploy, Monitor and analyze AWS usage, providing recommendations for cost optimisations without compromising system performance and reliability Refactor monolithic … reviews Guide other engineers, fostering a culture of collaboration, continuous learning, and professional growth Be an effective team player through collaboration, problem solving, and teamwork Experience Demonstratable expertise in Java development, with a strong command of Java 11 and above Proven experience in designing, developing, and optimizing backend systems for data processing at scale within AWS Hands-on experience with More ❯
to complex challenges. We are looking for self-starters, who can readily take ownership and continually strive to innovate. Additionally you should have the following skills and experience: • Strong JAVA 11 + skills and Reactive Programming Experience with the Spring framework and technologies. • Good understanding of asynchronous request handling Building for high availability/resilient distributed systems. • Experience of event … are responsible for hands-on development of software applications, working at pace adhering to Kanban values to resolve high impact, challenging, engineering problems while continuously raising quality standards. Using Java, AKKA and Spring, our Engineers will contribute to all aspects of the architecture and design for this innovative solution. • Play a key role in product engineering, following TDD and BDD More ❯
enhance existing systems and processes. Key Requirements: Bachelor's Degree (or above) in Computer Science, Mathematics, Physics, or a similar discipline. Proficient with one or more programming languages (e.g., Java, TypeScript, or similar). 5+ years of relevant, broad QA and software engineering experience, with prior experience working as part of a growth-focused team being a plus. Excellent communication … strong foundations and the ability to produce great code so don't be deterred if you don't have experience in the following: TypeScript: React.js (FE)/Node.js (BE) Java Python AWS Cloud Infrastructure Modulised Monolith Ferovinum provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability More ❯
Hayes, London, United Kingdom Hybrid / WFH Options
Gray Global Placements LTD
years of proven experience with Mongo Atlas and/or self-managed MongoDB clusters Minimum 4 years Mongo DBA experience MongoDB certified Strong written and verbal English Tech Stack Java, Angular, Ionic, Spring Boot, REST APIs and Mongo DB Linux, Git, SVN, Ansible & Maven CI/CD with Gitlab/Bamboo Agile-Scrum Compensation and Location: Competitive salary and package More ❯
in stakeholder meetings and demos What You’ll Need: 2+ years’ experience in software QA, both manual and automated Strong skills in Selenium, Cypress, Playwright, or similar Scripting knowledge (Java, Python, or JavaScript) Familiarity with performance testing (e.g., JMeter, LoadRunner) CI/CD experience with Jenkins, GitLab CI, or Azure DevOps Solid understanding of databases (Oracle/MySQL) and Linux More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Provide
in stakeholder meetings and demos What You’ll Need: 2+ years’ experience in software QA, both manual and automated Strong skills in Selenium, Cypress, Playwright, or similar Scripting knowledge (Java, Python, or JavaScript) Familiarity with performance testing (e.g., JMeter, LoadRunner) CI/CD experience with Jenkins, GitLab CI, or Azure DevOps Solid understanding of databases (Oracle/MySQL) and Linux More ❯
Hayes, Middlesex, England, United Kingdom Hybrid / WFH Options
Gray Global Placements
years of proven experience with Mongo Atlas and/or self-managed MongoDB clusters Minimum 4 years Mongo DBA experience MongoDB certified Strong written and verbal English Tech Stack Java, Angular, Ionic, Spring Boot, REST APIs and Mongo DB Linux, Git, SVN, Ansible & Maven CI/CD with Gitlab/Bamboo Agile-Scrum Compensation and Location: Competitive salary and package More ❯
with other cloud providers is a plus Proficient with IaC tools (Terraform, CloudFormation) and migrating resources to code Strong Kubernetes configuration and troubleshooting skills Proficiency in Bash/Python (Java is a plus) Experience with microservice architecture, Kubernetes, and monitoring tools (Prometheus, Grafana) Expertise in securing AWS environments (WAF, CloudTrail, GuardDuty, etc.) Experience with DevSecOps tooling for CI/CD More ❯
London (1 Horse Guards Road), Greater London, England
Government Digital & Data
platforms like AWS, Azure, or GCP, with relevant TOGAF qualification (e.g., Enterprise Architect, Data Scientist etc.) Programming -Strong proficiency in SQL and other programming languages, such as Python or Java, with an associated qualification (e.g., Microsoft Azure SQL, Oracle SQL, IBM SQL etc.) Applicants who are part-qualified or with sufficient relevant experience a gainst the Required Qualifications, who are … like AWS, Azure, or GCP, with relevant TOGAF qualification (e.g., Enterprise Architect, Data Scientist etc.) 2. Programming -Strong proficiency in SQL and other programming languages, such as Python or Java, with an associated qualification (e.g., Microsoft Azure SQL, Oracle SQL, IBM SQL etc.) Applicants who are part-qualified or with sufficient relevant experience against the Required Qualifications, who are willing More ❯
junior members Mentoring junior data scientists on the best practices in software development: clarity, modularity, maintainability, performance, organisation and testing/validation Writing technical documentation Collaborating with the database, java-developers and product teams Performing agile development in partnership with the team; applying and contributing to evolving processes and tooling Proactively acting to mitigate the company's risk, cost base More ❯
enthusiasm, and problem-solving ability than ticking every box. However, experience in any of the following areas would be advantageous: Software development in web technologies or OOP (e.g., Python, Java, etc.) Database tech: Oracle SQL, PostgreSQL, MongoDB Proficient with Linux/Windows command line (Bash, PowerShell) Monitoring: Grafana, Prometheus, ELK, Splunk Agile working and tooling (e.g., Jira, Confluence) Diagnosing and More ❯
enthusiasm, and problem-solving ability than ticking every box. However, experience in any of the following areas would be advantageous: Software development in web technologies or OOP (e.g., Python, Java, etc.) Database tech: Oracle SQL, PostgreSQL, MongoDB Proficient with Linux/Windows command line (Bash, PowerShell) Monitoring: Grafana, Prometheus, ELK, Splunk Agile working and tooling (e.g., Jira, Confluence) Diagnosing and More ❯
enthusiasm, and problem-solving ability than ticking every box. However, experience in any of the following areas would be advantageous: Software development in web technologies or OOP (e.g., Python, Java, etc.) Database tech: Oracle SQL, PostgreSQL, MongoDB Proficient with Linux/Windows command line (Bash, PowerShell) Monitoring: Grafana, Prometheus, ELK, Splunk Agile working and tooling (e.g., Jira, Confluence) Diagnosing and More ❯
technical audiences Knowledge of GenAI & QE developments Experience building advanced automation frameworks using object-oriented and scripted languages Proficiency in at least two of the following: JavaScript/TypeScript, Java, C#, Python Strong understanding of OOP principles Experience working in Agile teams, designing automated tests, and ensuring test coverage Ability to collaborate with developers and understand CI/CD pipelines More ❯
AWS and Microsoft Azure. We use MongoDB, MySQL, and SQL Server for our databases. Apps are built in ASP.NET and Angular for our web apps and a mix of Java, Swift, and Xamarin for our mobile apps. Responsibilities Will be a core member of the team to design, architect, develop, code reviews and test our key applications Design new application More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Client Server Ltd
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 ❯
architecture. Data Technology Skills: A solid understanding of big data technologies such as Apache Spark, and knowledge of Hadoop ecosystems. Knowledge of programming languages such as Python, R, or Java is beneficial. Exposure to ETL/ELT processes, SQL, NoSQL databases is a nice-to-have, providing a well-rounded background. Experience with data visualization tools and DevOps principles/ More ❯
