Date posted
Commute time
Locations
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Locations
Locations
Salaries
Date posted
Type of Company
Job types
Locations
- Moorgate
- Southwark
- Charing Cross
- Farnborough Park
- Holborn
- New Town
- The City, City (EC2)
- The City, City (EC3)
- City of London
- Central London
- West End
- Loughton
- Kingston Upon Thames
- Bracknell
- Milton Keynes
- North West London
- Reading
- South East London
- London
- Berkshire
- Essex
- Surrey
- Buckinghamshire
- Hampshire
- South East
37 Permanent API jobs in City of London + 20 miles
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Senior Data Scientist - 12 Month FTC
Senior Data Scientist - 12 Month FTC
Vitality Corporate Services Limited
Charing Cross, Central London (WC2), WC2R
£Competitive + Bonus + Benefits
Strong understanding of API development, microservices, and containerization (Docker, Kubernetes)
Strong understanding of API development, microservices, and containerization (Docker, Kubernetes)
PREMIUM
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Define API strategies including RESTful and event-driven architectures * Experience designing microservices and API-led architectures
Define API strategies including RESTful and event-driven architectures * Experience designing microservices and API-led architectures
FEATURED
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AI Architect
AI Architect
DCV Technologies Limited
North West London (NW1)
From £125,000 to £165,000 per annum + Multiple Benefits
Experience with Kubernetes, Docker, microservices, API integration
Experience with Kubernetes, Docker, microservices, API integration
FEATURED
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Senior C#.Net Software Engineer
Senior C#.Net Software Engineer
Data Careers
Southwark, South East London (SE1), SE1
£80000 - £90000 per annum
Good understanding of authentication and security (OAuth, JWT, API security)
Good understanding of authentication and security (OAuth, JWT, API security)
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Work with .NET (C#), Azure Integration Services (Logic Apps, API Management, Service Bus, Event Grid), and containerised microservices (Docker, AKS). * Champion best practices for API-led connectivity, event-driven architectures, and pub/sub messaging patterns. * Understanding of integration patterns (pub/sub, API-led, event-driven) and security standards (OAuth2, JWT, TLS, API security).
Work with .NET (C#), Azure Integration Services (Logic Apps, API Management, Service Bus, Event Grid), and containerised microservices (Docker, AKS). * Champion best practices for API-led connectivity, event-driven architectures, and pub/sub messaging patterns. * Understanding of integration patterns (pub/sub, API-led, event-driven) and security standards (OAuth2, JWT, TLS, API security).
Experience withNext.js / Node.js(API routes, server-side rendering, etc.)
Experience withNext.js / Node.js(API routes, server-side rendering, etc.)
Develop resilient API ingestion workflows
Develop resilient API ingestion workflows
FEATURED
Develop resilient API ingestion workflows
Develop resilient API ingestion workflows
FEATURED
)
Senior Applied AI Engineer, Finance
Senior Applied AI Engineer, Finance
Richard Wheeler Associates
Central London (W1)
From £130,000 to £160,000 per annum + performance bonus etc
Robust API integration experience, including working with third-party datasets, web APIs, or scrapers
Robust API integration experience, including working with third-party datasets, web APIs, or scrapers
AI Engineer, E2E Product Delivery, Finance
AI Engineer, E2E Product Delivery, Finance
Richard Wheeler Associates
Central London (W1)
From £160,000 to £175,000 per annum + performance bonus etc
Robust API integration experience, including working with third-party datasets, web APIs, or scrapers
Robust API integration experience, including working with third-party datasets, web APIs, or scrapers
)
Senior Full Stack Web Developer
Senior Full Stack Web Developer
Profile 29
Loughton (IG10), IG10
From £80,000 to £100,000 per annum + benefits (see advert)
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
Senior Full Stack Web Developer
Senior Full Stack Web Developer
Profile 29
Loughton (IG10), IG10
From £80,000 to £100,000 per annum + benefits (see advert)
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
Senior Full Stack Web Developer
Senior Full Stack Web Developer
Profile 29
Loughton (IG10), IG10
From £80,000 to £100,000 per annum + benefits (see advert)
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
Senior Full Stack Web Developer
Senior Full Stack Web Developer
Profile 29
Loughton (IG10), IG10
From £80,000 to £100,000 per annum + benefits (see advert)
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
)
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Ashdown Group
Kingston Upon Thames (KT1)
£110,000
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
FEATURED
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Ashdown Group
Kingston Upon Thames (KT1)
£110,000
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
FEATURED
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Head of Platform and Technology Delivery – Kingston, Surrey – Hybrid - £110k + benefits
Ashdown Group
Kingston Upon Thames (KT1)
£110,000
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
Candidates should have proven leadership of engineering or platform delivery teams within a hosted platform, SaaS or data intensive services environment, experience delivering complex data platforms, web services or API driven applications at scale, and a strong understanding of technology operations including software development, DevOps, infrastructure and service management.
FEATURED
)
Build FE views against back end endpoints - API like
Build FE views against back end endpoints - API like
)
Location - Erskine, Newcastle, Farnborough or London - Candidates are required to be eligible for clearance - The AI Enterprise Architect defines the target-state AI architecture and multi-year roadmap to enable scalable, secure, and governed AI adoption across the enterprise. This senior role provides strategic leadership, vendor and platform guidance, and architectural governance across AI initiatives, ensuring alignment with business strategy, enterprise standards, and regulatory requirements. * Governance & Standards: Establish AI governance frameworks, policies, and playbooks for model development, data usage, security, ethical AI, and compliance. * Strategic Leadership: Provide architectural leadership and direction across delivery teams, ensuring consistent adoption of AI standards and patterns.
Location - Erskine, Newcastle, Farnborough or London - Candidates are required to be eligible for clearance - The AI Enterprise Architect defines the target-state AI architecture and multi-year roadmap to enable scalable, secure, and governed AI adoption across the enterprise. This senior role provides strategic leadership, vendor and platform guidance, and architectural governance across AI initiatives, ensuring alignment with business strategy, enterprise standards, and regulatory requirements. * Governance & Standards: Establish AI governance frameworks, policies, and playbooks for model development, data usage, security, ethical AI, and compliance. * Strategic Leadership: Provide architectural leadership and direction across delivery teams, ensuring consistent adoption of AI standards and patterns.
PREMIUM
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Senior .Net Developer
Senior .Net Developer
Halian Technology Limited
Central London (W1)
From £85,000 to £95,000 per annum Plus bonus and benefits
Senior Backend Engineer (.NET Core) Fintech / Payments - We are looking for an experienced Senior Backend Engineer to join an engineering team building secure, scalable systems within the fintech space. This role is suited to a backend specialist with strong .NET Core experience who enjoys working on complex, high-throughput platforms where performance, reliability, and security are essential. You will contribute to the design and evolution of backend services, work on distributed systems, and help maintain high engineering standards across the team. Key Responsibilities * Design, develop, and maintain secure, high-performance backend services using.NET Core * Build, evolve, and maintain RESTful APIs * Contribute to microservices-based and distributed system architectures * Work across both greenfield and existing systems with a focus on scalability and maintainability
Senior Backend Engineer (.NET Core) Fintech / Payments - We are looking for an experienced Senior Backend Engineer to join an engineering team building secure, scalable systems within the fintech space. This role is suited to a backend specialist with strong .NET Core experience who enjoys working on complex, high-throughput platforms where performance, reliability, and security are essential. You will contribute to the design and evolution of backend services, work on distributed systems, and help maintain high engineering standards across the team. Key Responsibilities * Design, develop, and maintain secure, high-performance backend services using.NET Core * Build, evolve, and maintain RESTful APIs * Contribute to microservices-based and distributed system architectures * Work across both greenfield and existing systems with a focus on scalability and maintainability
)
Senior Integration Engineer
Senior Integration Engineer
DGH Recruitment
The City, City of London (EC2), EC2M 7PP
£80000 - £90000 per annum
DGH Recruitment are currently recruiting on behalf of a leading client in the professional services industry who require a Senior Integration Engineer to join the firm in London. You will be responsible for designing, building, and supporting scalable integrations using Workato. Please note: This role will be largely remote with occasional ad-hoc visits to the London office when required. The hours for this role are 11am-7pm to align with the US team. * Design, build, test, and maintain integrations using Workato. * Leverage advanced Workato capabilities, including Recipe design and optimization, Custom connectors and SDKs, On-premise agents, Error handling, retries, and monitoring best practices. * Ensure integrations are secure, scalable, resilient, and aligned with architectural standards. * Perform regular code and recipe reviews, providing constructive feedback to ...
DGH Recruitment are currently recruiting on behalf of a leading client in the professional services industry who require a Senior Integration Engineer to join the firm in London. You will be responsible for designing, building, and supporting scalable integrations using Workato. Please note: This role will be largely remote with occasional ad-hoc visits to the London office when required. The hours for this role are 11am-7pm to align with the US team. * Design, build, test, and maintain integrations using Workato. * Leverage advanced Workato capabilities, including Recipe design and optimization, Custom connectors and SDKs, On-premise agents, Error handling, retries, and monitoring best practices. * Ensure integrations are secure, scalable, resilient, and aligned with architectural standards. * Perform regular code and recipe reviews, providing constructive feedback to ...
Sharepoint Developer & Administrator
Sharepoint Developer & Administrator
DGH Recruitment
City of London (EC1)
£85000 - £93000 per annum + Benefits
Hybrid working: 3 days per week required in the office. DGH Recruitment are currently recruiting on behalf of a global law firm who are looking for a Sharepoint Developer & Administrator to join the team on a permanent basis in their London office as they look to grow their IT function within the EMEA region. They are seeking a highly skilled Senior SharePoint Developer & Administrator to design, develop, administer, and modernize their SharePoint environments across SharePoint Subscription Edition (SE) and SharePoint Online. This role will combine hands-on custom development with enterprise platform administration, including system maintenance, updates, patching, governance, and intranet design. Responsibilities; - Sharepoint development and modernisation - Sharepoint administration and operations - Sharepoint on prem integration - Technical documentation
Hybrid working: 3 days per week required in the office. DGH Recruitment are currently recruiting on behalf of a global law firm who are looking for a Sharepoint Developer & Administrator to join the team on a permanent basis in their London office as they look to grow their IT function within the EMEA region. They are seeking a highly skilled Senior SharePoint Developer & Administrator to design, develop, administer, and modernize their SharePoint environments across SharePoint Subscription Edition (SE) and SharePoint Online. This role will combine hands-on custom development with enterprise platform administration, including system maintenance, updates, patching, governance, and intranet design. Responsibilities; - Sharepoint development and modernisation - Sharepoint administration and operations - Sharepoint on prem integration - Technical documentation
)
React Frontend Developer
React Frontend Developer
EXL Service
City of London (EC3N)
A competitive salary with a generous bonus and additional benefits
EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:Front-End Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking a skilledFront-End Developerto join our Analytics team in London.
EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:Front-End Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking a skilledFront-End Developerto join our Analytics team in London.
.NET Core Backend Developer
.NET Core Backend Developer
EXL Service
The City, City of London (EC3), EC3N 1DD
A competitive salary with a generous bonus and additional benefits
EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:.NET Core Backend Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking an experienced.NET Core Backend Developerto join our Analytics team ...
EXL (NASDAQ: EXLS)is a global data and artificial intelligence ("AI") company that offers services and solutions to reinvent client business models, drive better outcomes and unlock growth with speed. EXL harnesses the power of data, AI, and deep industry knowledge to transform businesses, including the worlds leading corporations in industries including insurance, healthcare, banking and financial services, media and retail, among others. EXL was founded in 1999 with the core values of innovation, collaboration, excellence, integrity and respect. We are headquartered in New York and have more than 60,000 employees spanning six continents. Role Title:.NET Core Backend Developer - BU/Segment:Analytics /Insurance - Location: London, United Kingdom (Flexible hybrid working) Employment Type:Permanent - EXL is seeking an experienced.NET Core Backend Developerto join our Analytics team ...
Software Engineering Manager
Software Engineering Manager
Halian Technology Limited
Central London (W1)
From £120,000 to £130,000 per annum Plus bonus and benefits
EngineeringManager/SeniorEngineeringManager - Location:Hybrid(3daysperweekin-office) Company:LeadingPaymentsCompany(FinTech) Myclientisahigh-growth,product ledpaymentscompanyoperatingattheforefrontofthefintechecosystem. Theirplatformpowerssecure,scalable,andreliabletransactionsforbusinessesglobally,processingmillionsofpaymentsdailywithastrongfocusoncompliance,resilience,andperformance. Astheycontinuetoscale,wearelookingforanEngineeringManager/SeniorEngineeringManagertoleadhigh-performingteamsbuildingmission-criticalpaymentsinfrastructureandcustomer-facingfinancialproducts. TheRole - Thisisahands-offbuthighlytechnicalleadershiprole. Youwillnotbecodingday-today,butyouwillremainclosetothearchitecture,technicaldecisions,andengineeringquality. Youwillleadateamoftalentedengineersdeliveringsecure,compliant,andscalablepaymentsystemsinaregulatedenvironment.
EngineeringManager/SeniorEngineeringManager - Location:Hybrid(3daysperweekin-office) Company:LeadingPaymentsCompany(FinTech) Myclientisahigh-growth,product ledpaymentscompanyoperatingattheforefrontofthefintechecosystem. Theirplatformpowerssecure,scalable,andreliabletransactionsforbusinessesglobally,processingmillionsofpaymentsdailywithastrongfocusoncompliance,resilience,andperformance. Astheycontinuetoscale,wearelookingforanEngineeringManager/SeniorEngineeringManagertoleadhigh-performingteamsbuildingmission-criticalpaymentsinfrastructureandcustomer-facingfinancialproducts. TheRole - Thisisahands-offbuthighlytechnicalleadershiprole. Youwillnotbecodingday-today,butyouwillremainclosetothearchitecture,technicaldecisions,andengineeringquality. Youwillleadateamoftalentedengineersdeliveringsecure,compliant,andscalablepaymentsystemsinaregulatedenvironment.