Cardiff, Wales, United Kingdom Hybrid / WFH Options
JR United Kingdom
frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with React, Node.js, MongoDB, and SQL (Postgres, MySQL). Strong understanding of Git/GitHub, CI/CD workflows, code branching strategies, and code ownership. Prior work in a More ❯
Newport, Wales, United Kingdom Hybrid / WFH Options
JR United Kingdom
frontend stacks. Strong programming proficiency in Python, C++, and Java (Quant/Trading grade codebases). Expertise in modern web development with React, Node.js, MongoDB, and SQL (Postgres, MySQL). Strong understanding of Git/GitHub, CI/CD workflows, code branching strategies, and code ownership. Prior work in a More ❯
years of hands-on software development experience in Java (11–21) or Python . Deep expertise in backend technologies: SQL/NoSQL databases , Elasticsearch , MongoDB , Spring Boot , REST/GraphQL APIs , and ORM frameworks like Hibernate. Strong proficiency in modern frontend technologies such as React , Redux , Vue , and TypeScript . More ❯
years of hands-on software development experience in Java (11–21) or Python . Deep expertise in backend technologies: SQL/NoSQL databases , Elasticsearch , MongoDB , Spring Boot , REST/GraphQL APIs , and ORM frameworks like Hibernate. Strong proficiency in modern frontend technologies such as React , Redux , Vue , and TypeScript . More ❯
Cardiff, Wales, United Kingdom Hybrid / WFH Options
Rocket Science
proficiency in one or more of the following: Backend Languages: C#, Golang, Java, Python, Kotlin, Rust Frontend Languages: React, NextJS, Typescript Databases: PostgreSQL, MySQL, MongoDB, NoSQL Infrastructure: Terraform, Docker, Kubernetes CI/CD: GitHub Actions, Jenkins, ArgoCD Agile: Experience with SDLC and Agile practices. Improvements: Demonstrated ability to leave artifacts More ❯
Cardiff, South Glamorgan, United Kingdom Hybrid / WFH Options
Rocketscience
in one or more of the following: Backend Languages: C#, Golang, Java, Python, Kotlin, and Rust Frontend Languages: React, NextJS, Typescript Databases: PostgreSQL, MySQL, MongoDB, and NoSQL Infrastructure: Terraform, Docker, and Kubernetes CI/CD: GitHub Actions, Jenkins, and ArgoCD Agile: Experience with the Software Development Lifecycle (SDLC) and an More ❯
Cardiff, Wales, United Kingdom Hybrid / WFH Options
Rocket Science Group
in one or more of the following: Backend Languages: C#, Golang, Java, Python, Kotlin, and Rust Frontend Languages: React, NextJS, Typescript Databases: PostgreSQL, MySQL, MongoDB, and NoSQL Infrastructure: Terraform, Docker, and Kubernetes CI/CD: GitHub Actions, Jenkins, and ArgoCD Agile: Experience with the Software Development Lifecycle (SDLC) and an More ❯
of many microservices/sub-systems. Experience testing at UI, API as well as back-end levels. Working experience with various types of databases (MongoDB, Oracle, SQL, InfluxDB). Familiarity with monitoring tools like New Relic, Grafana, Prometheus, or Datadog. Knowledge of AWS cloud environments and performance testing in cloud More ❯
Cwmbran, Wales, United Kingdom Hybrid / WFH Options
Comparison Creator
HTML, CSS, and JavaScript (including modern frameworks like React, Vue.js, or Angular). Experience with relational databases (e.g., PostgreSQL, MySQL) and NoSQL databases (e.g., MongoDB). Strong understanding of software design patterns, object-oriented programming principles, and RESTful APIs. Experience with cloud platforms (e.g., AWS, Azure, GCP) is a plus. More ❯
teams to ensure scalability, resilience, and observability of data pipelines. Database Engineering : Write and optimize complex SQL queries on relational (Redshift, PostgreSQL) and NoSQL (MongoDB) databases. Work with ELK stack (Elasticsearch, Logstash, Kibana) for search, logging, and real-time analytics. Support Lakehouse architectures and hybrid data storage models for unified More ❯
Cardiff, South Glamorgan, United Kingdom Hybrid / WFH Options
Rocket Science Group
candidates who have experience and proficiency in one or more of the following: Languages: C#, Golang, Java, Python, Kotlin, and Rust Databases: PostgreSQL, MySQL, MongoDB, and NoSQL Infrastructure: Terraform, Docker, and Kubernetes CI/CD: GitHub Actions, Jenkins, and ArgoCD Agile: Experience with the Software Development Lifecycle (SDLC) and an More ❯
working knowledge of a minimum of 5 of the following: API AWS Burp ( security ) BrowserStack Concourse/Jenkins Docker JMeter Karate/Rest API MongoDB Kafka Oracle Playwright Postman/SOAP UI Selenium Grid SQL Typescript Unix based systems Git XML Benefits Alongside your salary of £41,571, Companies House More ❯
Factory, Talend, dbt). Experience designing and implementing scalable data pipelines and integration patterns across structured and unstructured data sources (e.g., Azure SQL, MySQL, MongoDB). Familiarity with data governance, metadata management, and data quality frameworks. Practical experience applying DevOps principles to data engineering, including CI/CD pipelines, infrastructure More ❯
Factory, Talend, dbt). Experience designing and implementing scalable data pipelines and integration patterns across structured and unstructured data sources (e.g., Azure SQL, MySQL, MongoDB). Familiarity with data governance, metadata management, and data quality frameworks. Practical experience applying DevOps principles to data engineering, including CI/CD pipelines, infrastructure More ❯
an Agile environment. Knowledge of Design Patterns, SOLID principles, and scalable architecture best practices. Proficiency with SQL databases (Microsoft SQL Server preferred) – experience with MongoDB is a plus. Familiarity with modern web UI frameworks (Vue.js, Angular, Blazor) is advantageous. Experience with Azure DevOps, CI/CD pipelines, and Infrastructure as More ❯
an Agile environment. Knowledge of Design Patterns, SOLID principles, and scalable architecture best practices. Proficiency with SQL databases (Microsoft SQL Server preferred) – experience with MongoDB is a plus. Familiarity with modern web UI frameworks (Vue.js, Angular, Blazor) is advantageous. Experience with Azure DevOps, CI/CD pipelines, and Infrastructure as More ❯
understanding of key technologies such as cloud, AI/ML, or mobile platforms Backend expertise in Java, Spring Framework, Kafka, and NoSQL databases (e.g., MongoDB, Cassandra) Preferred Qualifications Exposure to cloud technologies and services Experience designing and developing microservices-based architecture Commitment to continuous learning and innovation, especially in automation More ❯
understanding of key technologies such as cloud, AI/ML, or mobile platforms Backend expertise in Java, Spring Framework, Kafka, and NoSQL databases (e.g., MongoDB, Cassandra) Preferred Qualifications Exposure to cloud technologies and services Experience designing and developing microservices-based architecture Commitment to continuous learning and innovation, especially in automation More ❯
Developer, with strong hands-on skills in Node.js (a degree in Computing or similar is a bonus, not a must). Experience with JavaScript, MongoDB, RabbitMQ, MySQL, HTML5, CSS, and XML. Understanding of the full software development lifecycle (SDLC) and agile delivery. Comfortable working with cross-functional teams (e.g., development More ❯
APIs to delivering high-performance user interfaces helping define the technical direction of a rapidly evolving product. Responsibilities Lead full-stack development using NestJS, MongoDB, React, and TypeScript. Integrate and manage third-party APIs, including Meta’s API and a separate API for aggregating social media data. Contribute to system More ❯
React PostgreSQL or other relational database Experience in any of the following areas would be advantageous but is not a prerequisite Tailwind Node.js Next.js MongoDB EJS SaaS Financial services or fintech industry exposure If you are seeking a role of this nature please get in touch for more information. #J More ❯
/ASP.NET MVC, C#, and Azure SQL. Training in: .NET 9, Blazor, EF Core, Azure, JavaScript, HTML5, CSS3, Agile, TDD, BDD, Azure SQL, and MongoDB will be provided. Their culture emphasizes freedom and openness, creating a surprisingly positive environment. Benefits include: - Private medical healthcare (family plan) - 12% bonus - Student loan More ❯
live production environments Experience with Linux systems , network configuration, and firewalls Familiarity with CI/CD pipelines and tools (GitOps, ArgoCD, Helm) Experience with MongoDB , PostgreSQL , Redis and secure back-end infrastructure Why Apply? Collaborate on secure, cutting-edge communication platforms Join a critical programme making a real-world impact More ❯