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Locations
24 Permanent API jobs in Leatherhead + 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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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
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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
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Build FE views against back end endpoints - API like
Build FE views against back end endpoints - API like
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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
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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
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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.
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Forward Deployment Engineer UK (Hybrid) Salary: £70,000 £100,000 + Benefits | Permanent | Hiring 10 Engineers - We are hiring Forward Deployment Engineers to deliver and deploy cutting-edge technology solutions for our clients. You will work directly with customers, implement systems, troubleshoot issues, and ensure solutions work in real-world environments. * Deploy and configure software solutions in client environments * Integrate systems across cloud, APIs, and data pipelines * Troubleshoot and resolve technical issues on-site or remotely * Collaborate with product and engineering teams to improve deployments * Support rollout projects and large-scale implementations * Strong software engineering skills (Python, JavaScript, or similar) * Experience with cloud platforms (AWS, Azure, GCP) * Knowledge of APIs, system integration, and microservices
Forward Deployment Engineer UK (Hybrid) Salary: £70,000 £100,000 + Benefits | Permanent | Hiring 10 Engineers - We are hiring Forward Deployment Engineers to deliver and deploy cutting-edge technology solutions for our clients. You will work directly with customers, implement systems, troubleshoot issues, and ensure solutions work in real-world environments. * Deploy and configure software solutions in client environments * Integrate systems across cloud, APIs, and data pipelines * Troubleshoot and resolve technical issues on-site or remotely * Collaborate with product and engineering teams to improve deployments * Support rollout projects and large-scale implementations * Strong software engineering skills (Python, JavaScript, or similar) * Experience with cloud platforms (AWS, Azure, GCP) * Knowledge of APIs, system integration, and microservices
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London (Occasional Travel required every 4 -6 weeks) Salary: Up to £95,000 - An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. What will I be doing? * Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality operations. * Take ownership of key features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. * Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer-focused solutions.
London (Occasional Travel required every 4 -6 weeks) Salary: Up to £95,000 - An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. What will I be doing? * Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality operations. * Take ownership of key features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. * Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer-focused solutions.
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Permanent, London (Hybrid 2/3), £130k - £150k (On Experience) +Benefits - Working on both internal systems integrating with 3rd party systems as well as customer facing web-based systems built in PHP and associated frameworks, you will lead development initiatives within the full life cycle. * Work with both Project Managers and Data Scientists to define, manage and deliver projects * Play a lead role in the architecture and design of web-based systems * Develop code within the full life cycle: Development>Testing>Deployment>Refactor * Develop integrations with internal and external system via APIs * Undertake code reviews across PHP, Laravel, Symfony, CodeIgniter, Go/Golang (to a lesser degree), SQL/MySQL, HTML, CSS and Javascript (inc React.js and Vue.js) * Architect, build, and deploy scalable, cloud-native, AI-powered data-driven products in AWS
Permanent, London (Hybrid 2/3), £130k - £150k (On Experience) +Benefits - Working on both internal systems integrating with 3rd party systems as well as customer facing web-based systems built in PHP and associated frameworks, you will lead development initiatives within the full life cycle. * Work with both Project Managers and Data Scientists to define, manage and deliver projects * Play a lead role in the architecture and design of web-based systems * Develop code within the full life cycle: Development>Testing>Deployment>Refactor * Develop integrations with internal and external system via APIs * Undertake code reviews across PHP, Laravel, Symfony, CodeIgniter, Go/Golang (to a lesser degree), SQL/MySQL, HTML, CSS and Javascript (inc React.js and Vue.js) * Architect, build, and deploy scalable, cloud-native, AI-powered data-driven products in AWS
London (Occasional Travel required every 4 -6 weeks) Salary: Up to £95,000 - An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. What will I be doing? * Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality operations. * Take ownership of key features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. * Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer-focused solutions.
London (Occasional Travel required every 4 -6 weeks) Salary: Up to £95,000 - An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. What will I be doing? * Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality operations. * Take ownership of key features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. * Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer-focused solutions.
I am partnering with a highly respected financial services organisation to hire an Applied AI / Automation Engineer on a 12-month fixed-term contract. The organisation has a strong track record of innovation, operational excellence, and a culture that values collaboration, flexibility, and diversity. This opportunity sits within a modern Data Science team and will play a pivotal role in designing and building an AI-enabled reporting and reconciliation platform that will transform the client's Fund Administration processes. Role Overview - The successful candidate will report into the Head of Data Science and work closely with a dedicated Product Manager in the Fund Administration team. This is a hands-on engineering role where you will architect, build, and deliver production-grade automation solutions in a real-world financial environment. Key Responsibilities
I am partnering with a highly respected financial services organisation to hire an Applied AI / Automation Engineer on a 12-month fixed-term contract. The organisation has a strong track record of innovation, operational excellence, and a culture that values collaboration, flexibility, and diversity. This opportunity sits within a modern Data Science team and will play a pivotal role in designing and building an AI-enabled reporting and reconciliation platform that will transform the client's Fund Administration processes. Role Overview - The successful candidate will report into the Head of Data Science and work closely with a dedicated Product Manager in the Fund Administration team. This is a hands-on engineering role where you will architect, build, and deliver production-grade automation solutions in a real-world financial environment. Key Responsibilities
London (Occasional Travel required every 4 -6 weeks) Salary: Up to £95,000 - An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. What will I be doing? * Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality operations. * Take ownership of key features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. * Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer-focused solutions.
London (Occasional Travel required every 4 -6 weeks) Salary: Up to £95,000 - An established, global technology business within the hospitality-tech industry is seeking a talented Backend Software Engineer to help build and scale cutting-edge digital solutions. This is a chance to work on greenfield projects - building new, scalable products that help venues create seamless, data-driven guest experiences from the ground up. What will I be doing? * Design, develop, test, and maintain high-performance backend systems supporting real-time hospitality operations. * Take ownership of key features throughout the software development lifecycle - from technical design through to deployment and ongoing optimisation. * Collaborate with cross-functional teams including product, design, and data science to deliver innovative, customer-focused solutions.
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This is a new and exclusive opportunity for a Oracle ERP Service Owner to join a thriving investment bank as they are growing their Oracle centre of excellent - You will, as the Oracle ERP Service Owner, run the Oracle chapter for EMEA - Role details * Title- Oracle ERP Service Owner * Employer- investment bank * Permanent role, salary £120,000- £150,000 dependant on skills * Location: London city and with home working hybrid 50/50% * Requirements : Extensive hands-on leadership in Oracle Cloud ERP/EPM design, configuration, and implementation within an international investment-banking environment. The function delivers, maintains, and enhances the Oracle Financials platform alongside key in-house finance systems to meet operational, regulatory, and strategic business needs across the region. Strategic Leadership & Governance: Establish and drive the long-term roadmap for Oracle ...
This is a new and exclusive opportunity for a Oracle ERP Service Owner to join a thriving investment bank as they are growing their Oracle centre of excellent - You will, as the Oracle ERP Service Owner, run the Oracle chapter for EMEA - Role details * Title- Oracle ERP Service Owner * Employer- investment bank * Permanent role, salary £120,000- £150,000 dependant on skills * Location: London city and with home working hybrid 50/50% * Requirements : Extensive hands-on leadership in Oracle Cloud ERP/EPM design, configuration, and implementation within an international investment-banking environment. The function delivers, maintains, and enhances the Oracle Financials platform alongside key in-house finance systems to meet operational, regulatory, and strategic business needs across the region. Strategic Leadership & Governance: Establish and drive the long-term roadmap for Oracle ...
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Lead Full Stack Developer
Lead Full Stack Developer
G.R.E. Recruitment Limited
City of London (EC1)
From £85,000 to £95,000 per annum
Essential Exp: Laravel, Flutter, SaaS, API Design, MySQL/PostgreSQL/ MariaDB - Own and evolve a Laravel-based REST API
Essential Exp: Laravel, Flutter, SaaS, API Design, MySQL/PostgreSQL/ MariaDB - Own and evolve a Laravel-based REST API
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Proven track record in consultative selling within enterprise software, preferably in iPaaS, integration, API management, or cloud domains * Engage with the latest in AI-powered integration, API management, and intelligent automation through DXC's strategic alliance with Boomi
Proven track record in consultative selling within enterprise software, preferably in iPaaS, integration, API management, or cloud domains * Engage with the latest in AI-powered integration, API management, and intelligent automation through DXC's strategic alliance with Boomi
PREMIUM
25 exact matches jobs are outside your preferred location
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AI Architect – Generative AI / LLM / Cloud (Enterprise Scale)
AI Architect – Generative AI / LLM / Cloud (Enterprise Scale)
DCV Technologies Limited
London
From £125,000 to £166,000 per annum
Experience with Kubernetes, Docker, microservices architectures, and API integrations
Experience with Kubernetes, Docker, microservices architectures, and API integrations
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