London, South East, England, United Kingdom Hybrid / WFH Options
GerrardWhite
day one. This is an exciting opportunity to shape a fast-scaling platform while working with modern tools and practices. Key Responsibilities Lead development of core platform services and REST APIs in Kotlin . Build and integrate front-end applications with TypeScript and React.js . Maintain and evolve operational data sources ( PostgreSQL ). Integrate external 3rd-party data services. Develop More ❯
OTC Team Lead. Primary Responsibilities • Design, implement, test, deploy, and maintain OTC trading systems (primarily in C#) supporting Spot, Options, and Structured Products workflows. • Build and enhance API services (REST, WebSocket, FIX 4.4) used by clients and internal trading systems. • Work closely with traders, quants, and other engineers to deliver performant, secure, and scalable solutions. • Collaborate with the Principal Engineer More ❯
South East London, London, United Kingdom Hybrid / WFH Options
Stepstone UK
via web and hypermedia APIs Proficient in Web Technologies like HTML, CSS, JavaScript, React.js, Next.js and Node.js, and in event-driven and eventual consistency systems using Kafka, .Net, Java, REST APIs, AWS, Terraform and DevOps Nice to have:experience in data pipping and modelling using SQL, DBT, ETL, Data Warehousing, Redshift and Python, and ecommerce and mobile applications background Additional More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Enterprise Mobility
consuming Restful and/or SOAP API's Experience developing software in a SaaS environment using CI/CD and DevOps methodology Automated test development and execution (for example, REST-assured, Selenium, etc) Some Android development experience using Kotlin More ❯
South East London, London, United Kingdom Hybrid / WFH Options
Data Careers
Skills: SPFx Development: Proven experience building and deploying SPFx solutions React & TypeScript: Strong proficiency in modern React development Fluent UI: Experience with Microsoft's Fluent UI design system SharePoint REST API: Integration with SharePoint lists and libraries Modern Tooling: Node.js, npm, webpack, gulp, Visual Studio Code Frontend Development Skills: JavaScript/TypeScript: Advanced knowledge of modern JavaScript and TypeScript CSS More ❯
in collaborating with agile development teams in reviewing application architecture, design and implementation against quality standards Solid experience in modern design patterns Expertise towards SOA & Microservices architecture implementation using REST APIs, queue-based messaging patterns, relational and NoSQL databases Working knowledge of Machine learning model integration and MLOps pipelines. Working knowledge of orchestration for AI services. Working knowledge of on More ❯
experience with core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query optimization REST/JSON APIs: Designing, developing, and consuming scalable APIs Docker: Proficiency in containerizing applications for local and cloud environments Communication: Excellent communication skills to convey complex ideas effectivel Nice to More ❯
Employment Type: Contract
Rate: £600.0 - £640.0 per day + up to £640 pd (Inside IR35)
Continuously develop your technical knowledge across a range of technologies Required Skills & Experience: 3+ years’ experience in Node.js development Proficiency in TypeScript and JavaScript Experience with React , Express , and REST API development Strong understanding of SQL and Git Excellent analytical and problem-solving skills A genuine enthusiasm for learning and tackling complex technical challenges Bonus Experience (Nice to Have): AWS More ❯
Continuously develop your technical knowledge across a range of technologies Required Skills & Experience: 3+ years’ experience in Node.js development Proficiency in TypeScript and JavaScript Experience with React , Express , and REST API development Strong understanding of SQL and Git Excellent analytical and problem-solving skills A genuine enthusiasm for learning and tackling complex technical challenges Bonus Experience (Nice to Have): AWS More ❯
Continuously develop your technical knowledge across a range of technologies Required Skills & Experience: 3+ years’ experience in Node.js development Proficiency in TypeScript and JavaScript Experience with React , Express , and REST API development Strong understanding of SQL and Git Excellent analytical and problem-solving skills A genuine enthusiasm for learning and tackling complex technical challenges Bonus Experience (Nice to Have): AWS More ❯
london (city of london), south east england, united kingdom
rmg digital
Continuously develop your technical knowledge across a range of technologies Required Skills & Experience: 3+ years’ experience in Node.js development Proficiency in TypeScript and JavaScript Experience with React , Express , and REST API development Strong understanding of SQL and Git Excellent analytical and problem-solving skills A genuine enthusiasm for learning and tackling complex technical challenges Bonus Experience (Nice to Have): AWS More ❯
experience with core AWS services (EC2, S3, Lambda, IAM, etc.) Kafka/Messaging Systems: Expertise in building event-driven architectures SQL: Strong experience with relational databases and query optimization REST/JSON APIs: Designing, developing, and consuming scalable APIs Docker: Proficiency in containerizing applications for local and cloud environments Communication: Excellent communication skills to convey complex ideas effectivel Nice to More ❯
engineers Experience with Python, PostgresSQL and Unix Experience with writing intermediate to advanced SQL queries for data extraction and troubleshooting purposes. Experience with using and troubleshooting programming interfaces especially REST APIs and Web Sockets. Experience with monitoring tools (Grafana, DataDog) Experience working with Crypto and blockchain (DLT) Familiarity with common engineering development workflows and tools (e.g. JIRA, Confluences, github, scrum More ❯
engineers Experience with Python, PostgresSQL and Unix Experience with writing intermediate to advanced SQL queries for data extraction and troubleshooting purposes. Experience with using and troubleshooting programming interfaces especially REST APIs and Web Sockets. Experience with monitoring tools (Grafana, DataDog) Experience working with Crypto and blockchain (DLT) Familiarity with common engineering development workflows and tools (e.g. JIRA, Confluences, github, scrum More ❯
engineers Experience with Python, PostgresSQL and Unix Experience with writing intermediate to advanced SQL queries for data extraction and troubleshooting purposes. Experience with using and troubleshooting programming interfaces especially REST APIs and Web Sockets. Experience with monitoring tools (Grafana, DataDog) Experience working with Crypto and blockchain (DLT) Familiarity with common engineering development workflows and tools (e.g. JIRA, Confluences, github, scrum More ❯
london (city of london), south east england, united kingdom
Global Fintech
engineers Experience with Python, PostgresSQL and Unix Experience with writing intermediate to advanced SQL queries for data extraction and troubleshooting purposes. Experience with using and troubleshooting programming interfaces especially REST APIs and Web Sockets. Experience with monitoring tools (Grafana, DataDog) Experience working with Crypto and blockchain (DLT) Familiarity with common engineering development workflows and tools (e.g. JIRA, Confluences, github, scrum More ❯
understanding of object orientated programming and scripting. Experience writing complex SQL queries (Sybase advantageous). Proficient with UNIX/LINUX operating systems/commands. Understanding of API Services (SOAP, REST, Graph). Programming Language: Proficient in Java EE o with OpenJDK o with Spring 4.0+ Framework o with Spring Boot/Wildfly web servers (or similar) o with Angular 14+ More ❯
London, England, United Kingdom Hybrid / WFH Options
Focus on SAP
BI , or similar technologies. Contribute to the development of shared analytical libraries and tools. Collaborate with global teams to deliver enterprise-wide data and technology initiatives. Integrate applications with REST APIs and enterprise data services. Ensure alignment with cloud architecture and development best practices . Apply modern software engineering standards including testing, version control, and CI/CD pipelines. Key More ❯
london, south east england, united kingdom Hybrid / WFH Options
Focus on SAP
BI , or similar technologies. Contribute to the development of shared analytical libraries and tools. Collaborate with global teams to deliver enterprise-wide data and technology initiatives. Integrate applications with REST APIs and enterprise data services. Ensure alignment with cloud architecture and development best practices . Apply modern software engineering standards including testing, version control, and CI/CD pipelines. Key More ❯
North London, London, United Kingdom Hybrid / WFH Options
JobHeron
across diverse client projects. Collaborate with the Innovation Lead and clients to shape, design and explain potential solutions. Develop and maintain high-quality AI applications, including: Cloud functions and REST APIs, Integration with AI Python libraries (e.g. LangChain, LangGraph), Database interfacing (SQL, document, vector), User interface development and testing, Debugging, validation and documentation Build new features and improvements for Chat2Impact More ❯
London, South East, England, United Kingdom Hybrid / WFH Options
Jobheron
across diverse client projects. Collaborate with the Innovation Lead and clients to shape, design and explain potential solutions. Develop and maintain high-quality AI applications, including: Cloud functions and REST APIs, Integration with AI Python libraries (e.g. LangChain, LangGraph), Database interfacing (SQL, document, vector), User interface development and testing, Debugging, validation and documentation Build new features and improvements for Chat2Impact More ❯
Terraform. Experience with code repository and package management on GitHub and GitHub Packages. Proficiency in project management tools and documentation systems, like Jira and Confluence. Knowledge and experience with REST APIs. Understanding and experience with the Nginx web server. Strong understanding of network fundamentals (TCP/IP, HTTP, DNS, TLS, etc.) Familiarity with familiar 12factor app practices More ❯
