authorization best practices (OAuth2, JWT, API Gateway) while supporting dynamic authentication models based on user roles and access control. Design and optimize database interactions using SQL/NoSQL databases (MongoDB, PostgreSQL, DynamoDB). Develop CI/CD pipelines for automated API deployment using AWS services (CodePipeline, Bedrock, CloudFormation). Monitor and improve API performance, logging, and error handling using Prometheus … Expertise in OAuth2, JWT, API Gateway, and dynamic authentication mechanisms. Strong knowledge of OLAP workloads and Databricks integration for API-driven data analytics. Experience with SQL/NoSQL databases (MongoDB, PostgreSQL, DynamoDB). CI/CD automation expertise (Jenkins, GitHub Actions, AWS CodePipeline). Proficiency in API testing frameworks (Postman, Newman, Jest, Mocha, PyTest). Strong debugging, logging, and monitoring More ❯
Oracle, PostgreSQL, MongoDB, SQL Server, AngularJS, JSON, HTML, XML, XSLT, Scrum, Scaled Agile Framework (SAFe) methodology, SAFe Agilest Certification, or experience as a member of an Agile team Due to federal contract requirements, United States citizenship and an active TS/SCI security clearance and polygraph are required for the position. Required: Must be a US Citizen. Must have TS … some short-duration travel may be required to support quarterly PI Planning sessions in MD. These Qualifications Would be Nice to Have: Experience with databases such as Oracle, PostgreSQL, MongoDB, SQL Server. Experience with Web Application User Interface Development, knowledge of databases and structures, Spring Framework, and/or experience working with AngularJS, JSON, HTML, XML, XSLT. Experience with the More ❯
Greater London, England, United Kingdom Hybrid / WFH Options
Noir
.NET Developer (Tech stack: .NET Developer, .NET 9, C#, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for .NET Developer More ❯
City of London, London, England, United Kingdom Hybrid / WFH Options
Noir
.NET Developer (Tech stack: .NET Developer, .NET 9, C#, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for .NET Developer More ❯
Tunbridge Wells, Kent, England, United Kingdom Hybrid / WFH Options
Noir
.NET Developer - Tunbridge Wells, Kent (Tech stack: .NET Developer, .NET 9, C#, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles More ❯
Maidstone, Kent, England, United Kingdom Hybrid / WFH Options
Noir
.NET Developer - Maidstone, Kent (Tech stack: .NET Developer, .NET 9, C#, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for More ❯
.NET Developer (Tech stack: .NET Developer, .NET 9, C#, ASP.NET, C#, React, Angular 19, Microservices, Vue.js, TypeScript, Azure, Web API 2, Agile, Azure SQL, Programmer, Full Stack Engineer, Architect, .NET Developer) We have several fantastic new roles for .NET Developer More ❯
Company Description Visa is a world leader in digital payments, facilitating more than 215 billion payments transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories each year. Our mission is to connect the More ❯
requirements process 3) Applying risk mgmt principles 4) System test programs 5) Troubleshooting, monitoring 6) System architecting 7) UNIX, Linux, Windows 8) MS Office 9) Strong familiarity with MySQLand MongoDB, or other relational databases System engineering experience with Linux and Windows OS Working with product vendors System integration/administration experience Atlassian (Jira, Confluence, Bamboo, etc.) Must have completed and More ❯
operating systems, application software, and system management tools. Demonstrated experience monitoring system performance and troubleshooting. Desired Skills: Demonstrated experience working with big data processing and NoSQL databases such as MongoDB, ElasticSearch, MapReduce, and HBase.1. Demonstrated experience working with big data processing and NoSQL databases such as MongoDB, ElasticSearch, MapReduce, and HBase. Demonstrated experience with Apache NiFi. Demonstrated experience with the More ❯
Design & Develop Scalable Systems: Contribute to backend and full-stack development, focusing on robust APIs and efficient data flows. Database Management: Work with SQL and NoSQL systems (Postgres, Elasticsearch, MongoDB) to design, optimize, and maintain data storage. DevOps & Infrastructure: Build and maintain CI/CD pipelines, streamline deployments, and ensure scalable and reliable infrastructure. Data Engineering: Design and execute pipelines … solutions. Strong problem-solving and communication skills. Hands-on DevOps experience (CI/CD, version control). Familiarity with cloud infrastructure platforms, ideally Azure. Strong SQL & NoSQL experience (Elasticsearch, MongoDB, Postgres). Right to Work in the UK – must already be UK-based with valid work authorization. In the office at least 3 days a week. The client cannot offer More ❯
Develop Scalable Systems: Contribute to Back End and full-stack development, focusing on robust APIs and efficient data flows. Database Management: Work with SQL and NoSQL systems (Postgres, Elasticsearch, MongoDB) to design, optimize, and maintain data storage. DevOps & Infrastructure: Build and maintain CI/CD pipelines, streamline deployments, and ensure scalable and reliable infrastructure. Data Engineering: Design and execute pipelines … solutions. Strong problem-solving and communication skills. Hands-on DevOps experience (CI/CD, version control). Familiarity with cloud infrastructure platforms, ideally Azure. Strong SQL & NoSQL experience (Elasticsearch, MongoDB, Postgres). Right to Work in the UK - must already be UK-based with valid work authorization. In the office at least 3 days a week. The client cannot offer More ❯
managing and migrating databases in cloud environments (AWS preferred). This is a hands-on, senior-level role that requires deep expertise in PostgreSQL, SQL Server, and/or MongoDB, as well as familiarity with a variety of relational and NoSQL databases. The ideal candidate will lead cloud migration initiatives, ensure performance and reliability of database systems, and provide strategic … hosted contexts. Hands-on experience with AWS RDS, Aurora, Redshift, or similar services. Experience managing and migrating on-prem databases to the cloud. Proficient in NoSQL technologies such as MongoDB, DynamoDB, or Cassandra (a plus). Proficient in scripting languages like Bash, Python, or PowerShell. Familiar with CI/CD pipelines, DevOps workflows, and Git-based source control. Deep understanding More ❯
Software Engineer Application Deadline: 31 October 2025 Department: Software Engineering Employment Type: Permanent Location: London (Hybrid) Compensation: £40,000 - £85,000/year Description Please note: For this role it is essential that you are willing and eligible to Obtain More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Queen Square Recruitment Limited
Developer Azure Cosmos DB Location:Central London (hybrid) Contract Type:6 month initial contract, starting ASAP Industry:Banking & Financial Services Day rate: £500 - £600 (TBC, inside IR35) Our client, a large global consultancy, is seeking a Cosmos DB Developerto play More ❯
We are seeking a candidate to support our federal client's mission to accelerate discovery and delivery of identity and network-based intelligence to counter national security threat actors by applying experience relevant in an intelligence domain. The appropriate candidate More ❯
