Date posted
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Salaries
Locations
3 API jobs in West Sussex + 20 miles
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£55,000 £65,000 DOE | Hybrid Working (1x day a month office) Are you a seasoned developer with a passion for building robust, real-time communications platforms? Looking for a role where you can work on complex, enterprise-grade systems while still being close to the technical detail? This is an opportunity to join a well-established technology business with a strong reputation in communications and cloud-based solutions. Youll be part of a small, highly skilled development team working on the evolution of a large-scale SIP platform and its associated APIs, with plenty of scope to influence design, tooling, and future direction. The Role - Working closely with the Development Manager, youll play a key role in enhancing and extending an existing SIP and VoIP platform used in production environments.
£55,000 £65,000 DOE | Hybrid Working (1x day a month office) Are you a seasoned developer with a passion for building robust, real-time communications platforms? Looking for a role where you can work on complex, enterprise-grade systems while still being close to the technical detail? This is an opportunity to join a well-established technology business with a strong reputation in communications and cloud-based solutions. Youll be part of a small, highly skilled development team working on the evolution of a large-scale SIP platform and its associated APIs, with plenty of scope to influence design, tooling, and future direction. The Role - Working closely with the Development Manager, youll play a key role in enhancing and extending an existing SIP and VoIP platform used in production environments.
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NSX-T Engineer / Architect SC Cleared
NSX-T Engineer / Architect SC Cleared
Sanderson Government and Defence
Farnborough (GU14), GU14
£550 - £750 per day
Position: NSX-T Engineer / Architect - Location: Farnborough - Day Rate: Market Rate - SC Clearance Required - Our defence client is seeking a highly skilled VMware NSX-T Engineer/Architect to play a key role in designing and delivering secure, resilient, and scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities * Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- * Architect robust Layer 2/3 network solutions, with deep expertise in BGP, OSPF, STP, VLANs, and trunking. * Implement advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies.
Position: NSX-T Engineer / Architect - Location: Farnborough - Day Rate: Market Rate - SC Clearance Required - Our defence client is seeking a highly skilled VMware NSX-T Engineer/Architect to play a key role in designing and delivering secure, resilient, and scalable network solutions across mission-critical environments. This is an opportunity to work at the forefront of software-defined networking within a complex, high-security landscape. Key Responsibilities * Lead the design, deployment, and administration of VMware NSX-T, including logical switching, routing, distributed firewalls, and micro- * Architect robust Layer 2/3 network solutions, with deep expertise in BGP, OSPF, STP, VLANs, and trunking. * Implement advanced firewalling and security controls, including segmentation strategies, IDS/IPS, and zero-trust methodologies.
FEATURED
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Software Developer
Software Developer
Crowd Link Consulting Ltd
Woking (GU21)
From £45,000 to £65,000 per annum Salary + Benefits + Bonus
Web API, HTML, CSS, Web Services, JQuery and JavaScript
Web API, HTML, CSS, Web Services, JQuery and JavaScript
108 exact matches jobs are outside your preferred location
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API integration's
API integration's
FEATURED
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Integrations Solution Architect
Integrations Solution Architect
Alexander Edward James Consulting Limited
City of London (EC1)
£100,000 per annum
Design and lead the delivery of enterprise integration solutions using MuleSoft and API-led architecture.
Design and lead the delivery of enterprise integration solutions using MuleSoft and API-led architecture.
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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
FEATURED
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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
Collections API
Collections API
FEATURED
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FryerMiles are delighted to be working with a leading UK Consultancy to assist with their recruitment of a Full Stack Engineer to work on a large financial project within the UK public sector. The successful candidate will be a mid level Full Stack Engineer with hands on experience building robust applications using C#, Python, and JavaScript, supporting the delivery of secure, scalable, automated cloud platforms across the Public Sector. * Design, develop and maintain full-stack web applications using C#, Python and JavaScript * Build and enhance backend services using frameworks including .NET, Flask, and Django * Develop user friendly front end interfaces with React, Angular or similar * Create and maintain RESTful API’s, microservices, and integrations with third party systems * Troubleshoot and debug issues across the stack * Participate in code reviews
FryerMiles are delighted to be working with a leading UK Consultancy to assist with their recruitment of a Full Stack Engineer to work on a large financial project within the UK public sector. The successful candidate will be a mid level Full Stack Engineer with hands on experience building robust applications using C#, Python, and JavaScript, supporting the delivery of secure, scalable, automated cloud platforms across the Public Sector. * Design, develop and maintain full-stack web applications using C#, Python and JavaScript * Build and enhance backend services using frameworks including .NET, Flask, and Django * Develop user friendly front end interfaces with React, Angular or similar * Create and maintain RESTful API’s, microservices, and integrations with third party systems * Troubleshoot and debug issues across the stack * Participate in code reviews
Solid understanding of cloud-based architectures, especially Azure or AWS, including API
Solid understanding of cloud-based architectures, especially Azure or AWS, including API
Senior Java Developer – AWS Cloud Backend
Senior Java Developer – AWS Cloud Backend
Intelligent Talent Solutions Ltd
Bracknell (RG12)
From £75,000 to £90,000 per annum Pension, staff discounts, medical
Experience building platforms supporting mobile or API-driven products
Experience building platforms supporting mobile or API-driven products
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Support integrations (native + API-based) with IT and Data teams.
Support integrations (native + API-based) with IT and Data teams.
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
Assist with API integration and monitoring using API Management platforms. * Understanding of WAF and API security basics.
Assist with API integration and monitoring using API Management platforms. * Understanding of WAF and API security basics.
FEATURED
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Application Support Analyst (Business Central)
Application Support Analyst (Business Central)
360 Resourcing
Slough (SL1), SL1 4DX
£40000.00 to £44000.00 per year Hybrid working, Bonus and superb Bene
Troubleshoot API connections, reviewing payloads, authentication, and performance to maintain stability.
Troubleshoot API connections, reviewing payloads, authentication, and performance to maintain stability.
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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IT Support Applications Manager - Power Automate or PowerBI
IT Support Applications Manager - Power Automate or PowerBI
Latcom
Thatcham, Berkshire
£50,000 per annum + gd benefits
Familiar with specified high-level programming languages (e.g. Power Automate, PowerBI), and integration techniques (e.g. API, Wonde).
Familiar with specified high-level programming languages (e.g. Power Automate, PowerBI), and integration techniques (e.g. API, Wonde).
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Ruby on Rails Developer
Ruby on Rails Developer
Enterprise Recruitment Limited
The Borough, South East London (SE1), SE1 8HA
From £40,000 to £60,000 per annum
Solid understanding of API-led development
Solid understanding of API-led development
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Principal Automation Test Engineer - Selenium C# Java
Principal Automation Test Engineer - Selenium C# Java
Talent Locker
City of London (EC1)
£60000 - £80000 per annum
Strong API automation experience, framework design capability and the ability to influence senior stakeholders are essential. * Strong API automation capability (design, data, validation)
Strong API automation experience, framework design capability and the ability to influence senior stakeholders are essential. * Strong API automation capability (design, data, validation)
FEATURED
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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).
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).
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Full Stack Engineer JavaScript
Full Stack Engineer JavaScript
Staffworx Limited
West London (W10)
market rates, outside IR35, 6 months initial, long term extensions
Design & develop GraphQL API services from schema, supergraph, subgraph design to production integration, ensuring performance, flexibility, and maintainability. * Collaborate in Agile teams, driving API strategy, reviewing pull requests, and improving delivery processes. * Familiarity with testing frameworks (Vitest, Playwright) for both API and end-to-end testing.
Design & develop GraphQL API services from schema, supergraph, subgraph design to production integration, ensuring performance, flexibility, and maintainability. * Collaborate in Agile teams, driving API strategy, reviewing pull requests, and improving delivery processes. * Familiarity with testing frameworks (Vitest, Playwright) for both API and end-to-end testing.
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A market leading client is looking for an Integration Architect who has strong Integration experience with Boomi. As an Integration Architect you will shape, design, and deliver modern integration solutions across a diverse enterprise landscape. This is a pivotal role for someone who thrives on solving complex problems, influencing technology direction, and enabling seamless connectivity across systems, data, and business processes. Responsibilities * Analyse business needs and objectives and provide strategic guidance on integration of IT systems. * Excellent Integration experience using Boomi. * Architect and guide integration patterns across Verint, Appian, and other enterprise platforms. * Communicate and present enterprise architecture vision and recommendations to senior management and stakeholders.
A market leading client is looking for an Integration Architect who has strong Integration experience with Boomi. As an Integration Architect you will shape, design, and deliver modern integration solutions across a diverse enterprise landscape. This is a pivotal role for someone who thrives on solving complex problems, influencing technology direction, and enabling seamless connectivity across systems, data, and business processes. Responsibilities * Analyse business needs and objectives and provide strategic guidance on integration of IT systems. * Excellent Integration experience using Boomi. * Architect and guide integration patterns across Verint, Appian, and other enterprise platforms. * Communicate and present enterprise architecture vision and recommendations to senior management and stakeholders.
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Graduate Data Analyst - Python
Graduate Data Analyst - Python
CV Screen Ltd
Greenwich, South East London (SE10), SE10
£28k - 33k per year + Benefits
Understanding of data visualisation and basic API integration concepts.
Understanding of data visualisation and basic API integration concepts.
Senior iOS Developer – Swift / Mobile Applications
Senior iOS Developer – Swift / Mobile Applications
Intelligent Talent Solutions Ltd
Bracknell (RG12)
From £70,000 to £90,000 per annum Pension, staff discounts, medical
Implement robust REST API integrations
Implement robust REST API integrations