Date posted
Commute time
Locations
Type of Company
Job types
Salaries
Locations
Locations
Salaries
Date posted
Type of Company
Job types
Locations
- The City, City (EC4)
- Southwark
- The City, City (EC3)
- Hinxton
- The City, City (EC2)
- St James
- Arundel Heights
- Bellfields
- Bloomsbury
- Causeway
- City of London
- Cambridge
- Central London
- West End
- Reading
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- Milton Keynes
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- Oxford
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- Midlands
)
C# Developer .Net SQL API
C# Developer .Net SQL API
Client Server
The City, City of London (EC4), EC4R
£75000 - £90000 per annum + benefits
C# Developer / Software Engineer (C# .Net SQL API) London onsite to £90k - There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js. Apply now to find out more about this C# Developer / Software Engineer (C# .Net SQL API) opportunity.
C# Developer / Software Engineer (C# .Net SQL API) London onsite to £90k - There's a focus on backend and API development although you'll also have elements of front end work with JavaScript and React.js. Apply now to find out more about this C# Developer / Software Engineer (C# .Net SQL API) opportunity.
PREMIUM
)
Senior API Technical Consultant (GraphQL Specialist)
Senior API Technical Consultant (GraphQL Specialist)
Staffworx Limited
Slough (SL1)
market rates, outside IR35, 2 days on site
Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
Lead the designand evolution of our API schemas, ensuring they meet the complex demands of a rapidly growing platform. * Expert levelGraphQL, including advanced API design, schema evolution, performance optimisation.
Senior Backend Engineer TypeScript Node API
Senior Backend Engineer TypeScript Node API
Client Server
The City, City of London (EC4), EC2V
£85000 - £100000 per annum + shares + benefits
Senior Backend Engineer / Developer (TypeScript Node API) London / WFH to £100k
Senior Backend Engineer / Developer (TypeScript Node API) London / WFH to £100k
PREMIUM
C++ Developer MacOS API
C++ Developer MacOS API
Client Server
The City, City of London (EC4), EC2V
£65000 - £80000 per annum + benefits
As a C++ Developer you will focus on enabling the core product, written in C / C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions, tools and API integrations.
As a C++ Developer you will focus on enabling the core product, written in C / C++ for Windows and Linux to run on Apple Mac software, using the latest Extensions, tools and API integrations.
PREMIUM
)
Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
Champion best practices across testing disciplines including unit, integration, UI, API, and performance * Knowledge of web, mobile, API/microservices testing and contract testing (e.g. PACT)
PREMIUM
)
API-first and integration platforms
API-first and integration platforms
)
Tech Lead – Azure / .NET
Tech Lead – Azure / .NET
ARC IT Recruitment Ltd
The City, City of London (EC4), EC4N
Up to £100,000 per annum c.20% bonus + excellent benefits
This role sits within a core backend and API-focused team responsible for internal platforms that directly support commercial operations. * Act as the technical lead for a backend/API team supporting real-time, high-availability systems * Strong commercial experience with C# and .NET in backend, API-driven systems
This role sits within a core backend and API-focused team responsible for internal platforms that directly support commercial operations. * Act as the technical lead for a backend/API team supporting real-time, high-availability systems * Strong commercial experience with C# and .NET in backend, API-driven systems
RESTful API design and implementation expertise
RESTful API design and implementation expertise
)
API and SDK automation, metadata ingestion and catalogue enrichment
API and SDK automation, metadata ingestion and catalogue enrichment
)
Strong knowledge of API integration.
Strong knowledge of API integration.
NEW
)
Cloud Solution Architect
Cloud Solution Architect
International Business Solutions Consulting Limited
Soho, Central London (W1), W1D
£500 per day
The ideal candidate will have strong experience in delivering large-scale, fault-tolerant systems; setting SLOs/SLIs, Terraform and modern CI/CD tools (Azure DevOps, GitHub Actions, Harness, Jenkins, Spinnaker), Containers & orchestration (Kubernetes) and service mesh (eg, Istio), API design & security (REST/OpenAPI, mTLS, authN/Z), Scripting in Bash, PowerShell, or Python, Cloud Expertise (Depth in One, Ready to Cross-Train), Azure: ARM/Bicep, AKS, Application Gateway, API Management, Azure Storage, GCP: GKE, Cloud Load Balancing, Cloud Armor, Istio, Stackdriver, Jenkins, Apigee. The ideal candidate will desirably have strong experience in Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, Relevant Azure or GCP certifications.
The ideal candidate will have strong experience in delivering large-scale, fault-tolerant systems; setting SLOs/SLIs, Terraform and modern CI/CD tools (Azure DevOps, GitHub Actions, Harness, Jenkins, Spinnaker), Containers & orchestration (Kubernetes) and service mesh (eg, Istio), API design & security (REST/OpenAPI, mTLS, authN/Z), Scripting in Bash, PowerShell, or Python, Cloud Expertise (Depth in One, Ready to Cross-Train), Azure: ARM/Bicep, AKS, Application Gateway, API Management, Azure Storage, GCP: GKE, Cloud Load Balancing, Cloud Armor, Istio, Stackdriver, Jenkins, Apigee. The ideal candidate will desirably have strong experience in Harness, HashiCorp Vault, Dynatrace, Docker/buildah, NodeJS for API tooling, Relevant Azure or GCP certifications.
Azure Cosmos DB (SQL/Mongo API), NoSQL modelling
Azure Cosmos DB (SQL/Mongo API), NoSQL modelling
)
Software Engineer in Test (Java)
Software Engineer in Test (Java)
Understanding Recruitment
The City, City of London (EC2), EC2M 7PY
£70000 - £90000 per annum + bonus, hybrid, benefits
Strong experience with Java automation testing, API & backend testing.
Strong experience with Java automation testing, API & backend testing.
NEWFEATURED
)
Martech Product Owner (iGaming)
Martech Product Owner (iGaming)
Technically Gifted Ltd
City of London (EC1V)
From £70,000 to £80,000 per annum
Ensure scalable, resilient API integration between MarTech tools, the Bonus Engine, product systems, and data warehouses - Define and manage the Bonus Engine roadmap, evolving API capabilities and reward mechanics to support campaign efficiency and player engagement.
Ensure scalable, resilient API integration between MarTech tools, the Bonus Engine, product systems, and data warehouses - Define and manage the Bonus Engine roadmap, evolving API capabilities and reward mechanics to support campaign efficiency and player engagement.
)
Strong grasp of databases (SQL/NoSQL) and API integrations
Strong grasp of databases (SQL/NoSQL) and API integrations
)
Senior/Lead Full Stack Developer (React / Python) AI Start up!
Senior/Lead Full Stack Developer (React / Python) AI Start up!
Robert Half
City of London (EC1)
Negotiable
API & database experience
API & database experience
)
Skilled in building robust, optimized API endpoints.
Skilled in building robust, optimized API endpoints.
)
Director of Technology Architecture and Data
Director of Technology Architecture and Data
Henderson Scott
North West London, London, NW1 7AW
£125000 - £135000 per annum + Hybrid, 30 Days AL,
Oversee cloud architecture (primarily Microsoft Azure), integration patterns, and API frameworks. * API management, data architecture, integration patterns
Oversee cloud architecture (primarily Microsoft Azure), integration patterns, and API frameworks. * API management, data architecture, integration patterns
FEATURED
)
We are looking for a strong Full Stack Developer to deliver a short-term project involving a static website build, API scraping, and structured JSON output. * Develop API scraping scripts to extract structured data reliably * Proven experience building API scrapers (Axios, Puppeteer, BeautifulSoup, Cheerio, or similar) * Knowledge of API rate limits and bypass methods
We are looking for a strong Full Stack Developer to deliver a short-term project involving a static website build, API scraping, and structured JSON output. * Develop API scraping scripts to extract structured data reliably * Proven experience building API scrapers (Axios, Puppeteer, BeautifulSoup, Cheerio, or similar) * Knowledge of API rate limits and bypass methods
)
Applications Support Analyst / Engineer
Applications Support Analyst / Engineer
Kudos Partners
Datchet Common, Slough (SL3), SL3
£75,000 per annum plus 12% bonus - generous benefits package
API support and monitoring tools (e.g., SolarWinds, AzureAppInsights)
API support and monitoring tools (e.g., SolarWinds, AzureAppInsights)
)
Configure API connections to CRM systems and Power BI for real-time dashboards. * Experience with API integrations and data visualisation tools (Power BI preferred).
Configure API connections to CRM systems and Power BI for real-time dashboards. * Experience with API integrations and data visualisation tools (Power BI preferred).
FEATURED
)
Familiarity with microservices, API integration patterns and cloud concepts such as AWS.
Familiarity with microservices, API integration patterns and cloud concepts such as AWS.
Familiarity with microservices, API integration patterns and cloud concepts such as AWS.
Familiarity with microservices, API integration patterns and cloud concepts such as AWS.
)
Design and implement Service-Oriented Architecture, API gateways, and scalable integration strategies. * Expert in JavaScript, API protocols, message queuing, and synchronising data across POS, WMS, CRM, and loyalty systems.
Design and implement Service-Oriented Architecture, API gateways, and scalable integration strategies. * Expert in JavaScript, API protocols, message queuing, and synchronising data across POS, WMS, CRM, and loyalty systems.
)
Data Engineer
Data Engineer
McGregor Boyall Associates Limited
Turnham Green, West London (W4), W4 1SY
£30000 - £35000 per annum
Develop API integrations to connect multiple business systems
Develop API integrations to connect multiple business systems
Related Jobs
Locations
- The City, City (EC4)
- Southwark
- The City, City (EC3)
- Hinxton
- The City, City (EC2)
- St James
- Arundel Heights
- Bellfields
- Bloomsbury
- Causeway
- City of London
- Cambridge
- Central London
- West End
- Reading
- South East London
- Milton Keynes
- North West London
- East London
- Oxford
- London
- Berkshire
- Cambridgeshire
- Hertfordshire
- Buckinghamshire
- Oxfordshire
- Surrey
- Essex
- Bedfordshire
- West Sussex
- South East
- East Anglia
- East Midlands
- Midlands