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Full Stack Developer Node.Js / React
Full Stack Developer Node.Js / React
Halian Technology Limited
W1, Central London
From £60,000 to £65,000 per annum Plus bonus and benefits
My client specialises in digital payments across the UK and Europe. Their platform enables seamless real-time transactions for consumers and businesses, with a focus on security, scalability, and user experience. Backed by top-tier investors and used by thousands daily, were scaling up and looking for passionate engineers to help us build the future of payments. We are seeking a talented and driven Mid-Level Full Stack Engineer with strong skills in Node.js, React, and AWS cloud infrastructure. Youll play a key role in designing, developing, and maintaining scalable microservices and user interfaces for our core payments platform. Youll work in a cross-functional agile team alongside product managers, designers, and fellow engineers to deliver features that directly impact our customers and partners. * Develop backend microservices using Node.js (Express/Nest.js prefe
My client specialises in digital payments across the UK and Europe. Their platform enables seamless real-time transactions for consumers and businesses, with a focus on security, scalability, and user experience. Backed by top-tier investors and used by thousands daily, were scaling up and looking for passionate engineers to help us build the future of payments. We are seeking a talented and driven Mid-Level Full Stack Engineer with strong skills in Node.js, React, and AWS cloud infrastructure. Youll play a key role in designing, developing, and maintaining scalable microservices and user interfaces for our core payments platform. Youll work in a cross-functional agile team alongside product managers, designers, and fellow engineers to deliver features that directly impact our customers and partners. * Develop backend microservices using Node.js (Express/Nest.js prefe
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Job Role: Senior Full-Stack PHP Developer - Working Hours: 5 days per week - Job Type: Permanent - Salary: £70,000 - £85,000 depending on experience - Location: London - Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 - About the Company - Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview - This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
Job Role: Senior Full-Stack PHP Developer - Working Hours: 5 days per week - Job Type: Permanent - Salary: £70,000 - £85,000 depending on experience - Location: London - Remote: 4 days remote - 1 day on-site in London office - Postcode NW6 - About the Company - Our client is a rapidly growing platform that connects individuals with industry professionals for special events. By offering unique opportunities, the platform allows professionals in the field to achieve higher earnings while enjoying enhanced flexibility and a better work-life balance. Role Overview - This is an exciting opportunity to join a high-growth, early-stage startup. As a Full-Stack Developer, youll work closely with the founders and engineers in a tight-knit, London-based team. Youll have a direct impact on the companys expansion into new international markets, shaping the future of the business.
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Senior Backend Engineer
Senior Backend Engineer
Ncounter LTD
SW1, South West London
From £120,000 to £160,000 per annum Equity and package
Product-Focused Backend Engineer Functional Programming & Distributed Systems - London (Hybrid) | £120,000£160,000 + Equity - At Ncounter, were partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable outputs with full transparency - ensuring trust, compliance, and control remain central to every decision. As a Backend Engineer, youll join a growing team working at the forefront of AI infrastructure. This isnt just about clean code or strong delivery - its about ownership, product intuition, and building for scale. Youll be part of a lean, high-calibre engineering function where every member contributes to planning, testing, analysis, and execution.
Product-Focused Backend Engineer Functional Programming & Distributed Systems - London (Hybrid) | £120,000£160,000 + Equity - At Ncounter, were partnering with a cutting-edge AI company on a mission to redefine how professionals in highly regulated industries interact with complex, multi-modal data. Their platform empowers users to deploy custom no-code AI agents that produce verifiable outputs with full transparency - ensuring trust, compliance, and control remain central to every decision. As a Backend Engineer, youll join a growing team working at the forefront of AI infrastructure. This isnt just about clean code or strong delivery - its about ownership, product intuition, and building for scale. Youll be part of a lean, high-calibre engineering function where every member contributes to planning, testing, analysis, and execution.
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Contract Type:Permanent - About the Role - We're looking for an experienced Data Integration Manager to take ownership of how data moves, integrates, and performs across our business. This is a strategic role that sits at the intersection of technology, operations, and business value, ensuring our financial, commercial, and operational data flows are reliable, accurate, and enable smarter decision-making. You'll be the technical owner of our integration partnerships, lead a small specialist team, and work closely with Finance, Operations, and Commercial stakeholders to modernise processes through better data. If you're someone who understands both the technical complexity of enterprise data and the business outcomes it should deliver, we'd love to hear from you. What You'll Be Doing - Leading Enterprise Integration & Data Operations
Contract Type:Permanent - About the Role - We're looking for an experienced Data Integration Manager to take ownership of how data moves, integrates, and performs across our business. This is a strategic role that sits at the intersection of technology, operations, and business value, ensuring our financial, commercial, and operational data flows are reliable, accurate, and enable smarter decision-making. You'll be the technical owner of our integration partnerships, lead a small specialist team, and work closely with Finance, Operations, and Commercial stakeholders to modernise processes through better data. If you're someone who understands both the technical complexity of enterprise data and the business outcomes it should deliver, we'd love to hear from you. What You'll Be Doing - Leading Enterprise Integration & Data Operations
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Legal experience is required as well as knowledge of legal apps (IntApp, Elite 3e etc) as there is API and Integration work around these apps.
Legal experience is required as well as knowledge of legal apps (IntApp, Elite 3e etc) as there is API and Integration work around these apps.
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Rest API's and Microservice architecture * Restful API Design and development fundamentals * Good SQL knowledge
Rest API's and Microservice architecture * Restful API Design and development fundamentals * Good SQL knowledge
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Rest API's and Microservice architecture * Restful API Design and development fundamentals * Good SQL knowledge
Rest API's and Microservice architecture * Restful API Design and development fundamentals * Good SQL knowledge
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5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
5+ years experience in working with the .NET framework, particularly with ASP.NET Core, React/React Native, C#, Web API Experience developing REST API-driven mobile first web applications
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Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus.
Experience in developing and deploying Cloud Native Applications using Azure PaaS Capabilities (App Services Plans, Key Vault, SQL Azure DB, AzureFunctions, Containers, AKS, Logic Apps, Service Bus, Event Grid, API Management) * Enterprise Integration Technologies such as Azure API Management, Logic Apps, Service Bus.
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Senior Security Engineer Defender PurView Sentinel
Senior Security Engineer Defender PurView Sentinel
Invitise Ltd
EC1A, City of London
Up to £500 per day Outside IR35
PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
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Hands-on experience integrating external data sources into internal systems using ETL pipelines and API-driven data exchange.
Hands-on experience integrating external data sources into internal systems using ETL pipelines and API-driven data exchange.
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Strong knowledge of Django (or similar) and API design
Strong knowledge of Django (or similar) and API design
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Experience of deploying into and using AWS services including VPC, EC2, RDS, API Gateway
Experience of deploying into and using AWS services including VPC, EC2, RDS, API Gateway
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Build, fine-tune, and evaluate LLM-based Q&A models using frameworks like AWS Bedrock, Langchain, HuggingFace Transformers or OpenAI API.
Build, fine-tune, and evaluate LLM-based Q&A models using frameworks like AWS Bedrock, Langchain, HuggingFace Transformers or OpenAI API.
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Experience with some of the technologies we make use of: Groovy, Python, AWS Serverless (API Gateway, Lambdas), XML, JSON, Open API, virtualisation in general and especially Docker and its eco system, Git, NoSQL products and concepts (Dynamo, column family, etc.)
Experience with some of the technologies we make use of: Groovy, Python, AWS Serverless (API Gateway, Lambdas), XML, JSON, Open API, virtualisation in general and especially Docker and its eco system, Git, NoSQL products and concepts (Dynamo, column family, etc.)
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4+ years automation testing skills (Selenium, Katalon, GT-UI, GT-API). * Web services testing / API testing skills is a plus.
4+ years automation testing skills (Selenium, Katalon, GT-UI, GT-API). * Web services testing / API testing skills is a plus.
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AI (artificial intelligence) DevOps Engineer
AI (artificial intelligence) DevOps Engineer
Huxley Associates
EC1, City of London
£60000 - £90000 per annum
You'll also ensure alignment with enterprise-grade security practices, including zero trust principles, identity-aware routing, and integration with Azure API Management and Application Gateway. * API Gateway, Azure API Management (APIM), Azure Application Gateway
You'll also ensure alignment with enterprise-grade security practices, including zero trust principles, identity-aware routing, and integration with Azure API Management and Application Gateway. * API Gateway, Azure API Management (APIM), Azure Application Gateway
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Proficiency with Git workflows, LAMP stack, and REST API integrations.
Proficiency with Git workflows, LAMP stack, and REST API integrations.
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Strong knowledge of Salesforce Lightning Web Components (LWC), Apex, SOQL, JavaScript Salesforce Lightning Design System (SLDS), REST API, Git and packages.
Strong knowledge of Salesforce Lightning Web Components (LWC), Apex, SOQL, JavaScript Salesforce Lightning Design System (SLDS), REST API, Git and packages.
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Familiarity with testing tools/frameworks (e.g., JUnit, Postman) and API testing
Familiarity with testing tools/frameworks (e.g., JUnit, Postman) and API testing
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As our API Integration Specialist, you will support and help to grow our brand universe. * Around 2-3 years in API integration domain
As our API Integration Specialist, you will support and help to grow our brand universe. * Around 2-3 years in API integration domain
Work closely with the team to develop new features, such as better interpretation layers, enhanced data decoding, and improved API coverage for various blockchain data.
Work closely with the team to develop new features, such as better interpretation layers, enhanced data decoding, and improved API coverage for various blockchain data.
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Most functionality is written by the API or integrations team but we need a strong developer that can do both.
Most functionality is written by the API or integrations team but we need a strong developer that can do both.
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Understanding of secure architecture, API design, and performance optimisation.
Understanding of secure architecture, API design, and performance optimisation.
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You may also be asked to support the testing of releases for our Client API and Mobile Application. * API testing - building out automated test coverage of our RESTful Client API * Collaborate with the external contractor QA resource on specific projects (e.g. automating API testing) and as an additional resource when required
You may also be asked to support the testing of releases for our Client API and Mobile Application. * API testing - building out automated test coverage of our RESTful Client API * Collaborate with the external contractor QA resource on specific projects (e.g. automating API testing) and as an additional resource when required
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Related Jobs
Locations
- City of London
- Central London
- South East London
- South West London
- East London
- West London
- Canary Wharf
- North London
- North West London
- Moorgate, City of London
- Manchester
- South East
- Birmingham
- Cambridge
- Reading
- Milton Keynes
- Bristol
- Essex
- Watford
- Kent
- Slough
- Leeds
- Bracknell
- Cambridgeshire
- Brighton
- Surrey
- Bromley
- Cardiff
- Portsmouth
- Edinburgh
- Sheffield
- Derby
- Newcastle Upon Tyne
- Coventry
- Southampton
- Leicester
- Scotland
- Hertfordshire
- Hampshire
- Greater Manchester
- Colchester
- East Midlands
- Guildford
- Liverpool
- York
- Dartford
- West Midlands
- Uxbridge
- Wokingham
- Chester