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3 Contract API jobs in Chelmsford + 20 miles
Knowledge of Salesforces API
Knowledge of Salesforces API
As an HL7 Integration Analyst, you will be responsible for the development, deployment, analysis, and maintenance of healthcare integration solutions. You will focus on delivering robust interoperability across systems by leveraging standards such as HL7 (v2 and FHIR), Rhapsody Integration Engine, APIs, and custom code solutions. In addition to developing and supporting integration points, you will play a critical role in conducting integration analysis to ensure clinical and operational requirements are accurately interpreted and met through technical delivery. This role requires an exceptionally high level of technical expertise. The post holder is expected to have the skill to routinely analyse and solve highly complex technical problems without the need to call upon others for advice, whilst providing technical guidance and sharing knowledge with other in-house ..
As an HL7 Integration Analyst, you will be responsible for the development, deployment, analysis, and maintenance of healthcare integration solutions. You will focus on delivering robust interoperability across systems by leveraging standards such as HL7 (v2 and FHIR), Rhapsody Integration Engine, APIs, and custom code solutions. In addition to developing and supporting integration points, you will play a critical role in conducting integration analysis to ensure clinical and operational requirements are accurately interpreted and met through technical delivery. This role requires an exceptionally high level of technical expertise. The post holder is expected to have the skill to routinely analyse and solve highly complex technical problems without the need to call upon others for advice, whilst providing technical guidance and sharing knowledge with other in-house ..
This role involves creating high-quality documentation, including API integrations, and leveraging your expertise to guide projects to success. * Document and manage API requirements, ensuring alignment with REST/GraphQL principles and system capabilities. * Leverage knowledge of API principles (REST/GraphQL), web technologies (e.g., cookies, HTML, JSON), and authentication protocols (e.g., oAuth2, SAML). * Understanding of API principles such as REST / GraphQL
This role involves creating high-quality documentation, including API integrations, and leveraging your expertise to guide projects to success. * Document and manage API requirements, ensuring alignment with REST/GraphQL principles and system capabilities. * Leverage knowledge of API principles (REST/GraphQL), web technologies (e.g., cookies, HTML, JSON), and authentication protocols (e.g., oAuth2, SAML). * Understanding of API principles such as REST / GraphQL
369 exact matches jobs are outside your preferred location
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A top-tier defense organization is looking for an experienced Axway API Developer / Administrator to join their team on a 6-month contract. * Axway's core products: Policy Studio, API Gateway, and API Manager. If you are an experienced professional with a background in API, MFT, or secure file transfers, this could be the perfect opportunity for you.
A top-tier defense organization is looking for an experienced Axway API Developer / Administrator to join their team on a 6-month contract. * Axway's core products: Policy Studio, API Gateway, and API Manager. If you are an experienced professional with a background in API, MFT, or secure file transfers, this could be the perfect opportunity for you.
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Senior API Technical Consultant (GraphQL Specialist)
Senior API Technical Consultant (GraphQL Specialist)
Staffworx Limited
London
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.
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Work with cloud platforms (AWS, GCP, O365), API integration, containerisation, and microservices
Work with cloud platforms (AWS, GCP, O365), API integration, containerisation, and microservices
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Azure Analytics & Integration stack (e.g., Databricks, Synapse, Logic Apps, API Management) o API frameworks (SOAP, REST, WebSocket)
Azure Analytics & Integration stack (e.g., Databricks, Synapse, Logic Apps, API Management) o API frameworks (SOAP, REST, WebSocket)
Previous work in API integration
Previous work in API integration
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Provide technical direction on MuleSoft integrations and ensure robust API strategy and lifecycle management.
Provide technical direction on MuleSoft integrations and ensure robust API strategy and lifecycle management.
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We're looking for a Senior AWS Platform Engineer to play a hands-on role in a major API infrastructure migration project. * Kong API Gateway (hybrid model) * Strong understanding of API gateways (Kong)
We're looking for a Senior AWS Platform Engineer to play a hands-on role in a major API infrastructure migration project. * Kong API Gateway (hybrid model) * Strong understanding of API gateways (Kong)
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Skills: C#.Net, XML / JSON API's, SC & NPPV3 Clearance
Skills: C#.Net, XML / JSON API's, SC & NPPV3 Clearance
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Software Developer - Active SC, Python, AWS
Software Developer - Active SC, Python, AWS
Hays
London
£400.0 - £425.0 per day + up to £425 per day (InsideIR35)
Proven experience as a software developer with data integration experience (API)
Proven experience as a software developer with data integration experience (API)
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Build performance backend API services using Next.js * Set up new Contentful environments and keep the backend synchronised with the external Contentful CMS using Contentfuls API * Proven experience with strong React fundamentals and in-depth knowledge of Next.js features (SSR, SSG, routing, API routes). * Contentful CMS: Comfortable working in API-driven environments, configuring and integrating content without heavy backend coding. * Experience integrating HubSpot Forms API only (other HubSpot modules not required).
Build performance backend API services using Next.js * Set up new Contentful environments and keep the backend synchronised with the external Contentful CMS using Contentfuls API * Proven experience with strong React fundamentals and in-depth knowledge of Next.js features (SSR, SSG, routing, API routes). * Contentful CMS: Comfortable working in API-driven environments, configuring and integrating content without heavy backend coding. * Experience integrating HubSpot Forms API only (other HubSpot modules not required).
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Promote modern architectural patterns, such as modular design and state management best practices (e.g., Redux, Zustand, or Context API).
Promote modern architectural patterns, such as modular design and state management best practices (e.g., Redux, Zustand, or Context API).
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Proficiency in JavaScript, Glide API, and ServiceNow development tools.
Proficiency in JavaScript, Glide API, and ServiceNow development tools.
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Proven experience building real-time or batch AI/ML pipelines with strong API design
Proven experience building real-time or batch AI/ML pipelines with strong API design
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Lead integration of data from SAP (e.g., S/4HANA, BW/4HANA) and external platforms using cloud and API technologies.
Lead integration of data from SAP (e.g., S/4HANA, BW/4HANA) and external platforms using cloud and API technologies.
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Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA/Hibernate), REST API's, observability and monitoring, queue technologies and security.
Excellent development skills, with a depth of experience including C#, Java (Spring Boot, JPA/Hibernate), REST API's, observability and monitoring, queue technologies and security.
PREMIUM
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Systems Integration & API Work
Systems Integration & API Work
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Loan IQ Technical Consultant - inside IR35
Loan IQ Technical Consultant - inside IR35
LA International Computer Consultants Ltd
London
£800 - £850 per day
oKnowledge of event management frameworks and API integrations.
oKnowledge of event management frameworks and API integrations.
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Strong understanding of Vue 3, Composition API, Pinia.
Strong understanding of Vue 3, Composition API, Pinia.
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REST/SOAP API Integration: Building and consuming APIs for third-party integrations.
REST/SOAP API Integration: Building and consuming APIs for third-party integrations.
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API Integration Experience:Proven track record of consuming and building APIs for data exchange * Strong understanding of API development and integration (REST, GraphQL)
API Integration Experience:Proven track record of consuming and building APIs for data exchange * Strong understanding of API development and integration (REST, GraphQL)
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My client is a high-profile consultancy who require an Endur Solution Architect, with experience in Endur and in Energy Trading and Risk Management (ETRM) systems, to work closely with an end customer. * Proven expertise as a Subject Matter Expert (SME) in Energy Trading and Risk Management (ETRM) systems, with deep specialization in Endur. * Ability to deliver strategic guidance and solutions for complex trading and risk management scenarios. * Strong capability to optimize Endur functionalities across front-office, middle-office, and back-office operations. * Demonstrated technical leadership in Endur-related projects, ensuring alignment with business goals and industry standards. * Solid understanding of system integration principles, including APIs, middleware, and data interfaces for seamless enterprise connectivity.
My client is a high-profile consultancy who require an Endur Solution Architect, with experience in Endur and in Energy Trading and Risk Management (ETRM) systems, to work closely with an end customer. * Proven expertise as a Subject Matter Expert (SME) in Energy Trading and Risk Management (ETRM) systems, with deep specialization in Endur. * Ability to deliver strategic guidance and solutions for complex trading and risk management scenarios. * Strong capability to optimize Endur functionalities across front-office, middle-office, and back-office operations. * Demonstrated technical leadership in Endur-related projects, ensuring alignment with business goals and industry standards. * Solid understanding of system integration principles, including APIs, middleware, and data interfaces for seamless enterprise connectivity.
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My client, a leading digital consultancy are currently looking for a highly skilled and experienced Java Tech Lead to join their engineering team. You will be responsible for leading a team of engineers, providing technical guidance, and ensuring successful delivery of scalable, high-performance solutions using Java, Microservices, GCP, and Kubernetes. This is a hands-on leadership role that combines deep technical expertise with team mentorship and delivery ownership. o Lead a team of backend engineers, providing technical direction and mentoring - o Drive best practices in coding, architecture, design patterns, and DevOps - o Conduct code reviews, provide constructive feedback, and ensure code quality and maintainability - o Collaborate with architects, product managers, and other stakeholders to define technical solutions aligned with business goals o Own the end-t
My client, a leading digital consultancy are currently looking for a highly skilled and experienced Java Tech Lead to join their engineering team. You will be responsible for leading a team of engineers, providing technical guidance, and ensuring successful delivery of scalable, high-performance solutions using Java, Microservices, GCP, and Kubernetes. This is a hands-on leadership role that combines deep technical expertise with team mentorship and delivery ownership. o Lead a team of backend engineers, providing technical direction and mentoring - o Drive best practices in coding, architecture, design patterns, and DevOps - o Conduct code reviews, provide constructive feedback, and ensure code quality and maintainability - o Collaborate with architects, product managers, and other stakeholders to define technical solutions aligned with business goals o Own the end-t