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5 Contract API jobs in Bulstrode, Gerrards Cross + 20 miles
74 exact matches jobs are outside your preferred location
Location - London - Employment Type - Full time - Department - Product R&D - About G2 - The Company - When you join G2, youre joining the team that helps businesses reach their peak potential by powering decisions and strategies with trusted insights from real software users. G2 is the world's largest and most trusted software marketplace. More than 100 million people annually including employees at all Fortune 500 companies use G2 to make smarter software decisions based on authentic peer reviews. Thousands of software and services companies of all sizes partner with G2 to build their reputation and grow their business including Salesforce, HubSpot, Zoom, and Adobe. To learn more about where you go for software, visit and follow us on LinkedIn. As we continue on our growth journey, we are striving to be the most trusted data source in the age of AI for informing soft
Location - London - Employment Type - Full time - Department - Product R&D - About G2 - The Company - When you join G2, youre joining the team that helps businesses reach their peak potential by powering decisions and strategies with trusted insights from real software users. G2 is the world's largest and most trusted software marketplace. More than 100 million people annually including employees at all Fortune 500 companies use G2 to make smarter software decisions based on authentic peer reviews. Thousands of software and services companies of all sizes partner with G2 to build their reputation and grow their business including Salesforce, HubSpot, Zoom, and Adobe. To learn more about where you go for software, visit and follow us on LinkedIn. As we continue on our growth journey, we are striving to be the most trusted data source in the age of AI for informing soft
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Company Description - Cell therapies have been shown to cure devastating and previously untreatable diseases like cancer by re-programming the patient's own immune system. Giving more patients access to these life-saving therapies requires a revolution in manufacturing and process automation. Cellular Origins, a TTP Company, is enabling scalable, cost-effective and efficient manufacture of cell and gene therapies. Our technology addresses the challenges associated with manufacturing at scale with an elegant robotic manufacturing automation solution that reduces cost and labour, eliminates human error, and increases efficiency. Job Description - You will design and implement PLC control systems using Beckhoff TwinCAT. You will be responsible for delivering PLC systems that integrate with Cellular Origins' factory software architecture to allow remote control of machine
Company Description - Cell therapies have been shown to cure devastating and previously untreatable diseases like cancer by re-programming the patient's own immune system. Giving more patients access to these life-saving therapies requires a revolution in manufacturing and process automation. Cellular Origins, a TTP Company, is enabling scalable, cost-effective and efficient manufacture of cell and gene therapies. Our technology addresses the challenges associated with manufacturing at scale with an elegant robotic manufacturing automation solution that reduces cost and labour, eliminates human error, and increases efficiency. Job Description - You will design and implement PLC control systems using Beckhoff TwinCAT. You will be responsible for delivering PLC systems that integrate with Cellular Origins' factory software architecture to allow remote control of machine
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We are looking for a Senior Machine learning Engineer (GraphRAG & Retrieval Tools) to join our Knowledge Graph Retrieval team. You will help design and build robust, reusable retrieval tools and services that empower consumer teams to leverage our large-scale Knowledge Graph. You will be building the core platform that powers sophisticated Graph-based Retrieval-Augmented Generation (GraphRAG) and automated querying applications. You will work alongside some of the brightest minds in tech, enabling state-of-the-art approaches to data retrieval and reasoning. Your work is at the core of this challenge, ensuring our internal teams can easily and effectively build applications on top of our graph data. Your primary focus will be to build tools that abstract the complexity of graph traversal and retrieval.
We are looking for a Senior Machine learning Engineer (GraphRAG & Retrieval Tools) to join our Knowledge Graph Retrieval team. You will help design and build robust, reusable retrieval tools and services that empower consumer teams to leverage our large-scale Knowledge Graph. You will be building the core platform that powers sophisticated Graph-based Retrieval-Augmented Generation (GraphRAG) and automated querying applications. You will work alongside some of the brightest minds in tech, enabling state-of-the-art approaches to data retrieval and reasoning. Your work is at the core of this challenge, ensuring our internal teams can easily and effectively build applications on top of our graph data. Your primary focus will be to build tools that abstract the complexity of graph traversal and retrieval.
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Location: London or UK Remote - Reporting to: Tech Lead in Growth or Operations teams - About Hometree - Join Hometree Group and be at the forefront of transforming the residential energy landscape. Founded in 2015, Hometree began in the home cover market. Today were spearheading the shift to decentralised, digitised home energy systems using heat pumps, solar panels, batteries, EV chargers and smart controls. This approach isnt just about sustainability; it empowers homeowners to manage energy more efficiently and cost-effectively, setting new standards in energy consumption. * Financial Services: Here, you'll contribute to offering flexible financing options that make it feasible for homeowners to embrace renewable energy technologies and make essential upgrades. * Energy Services: Be part of our extensive network of local installation businesses that equip homeowne
Location: London or UK Remote - Reporting to: Tech Lead in Growth or Operations teams - About Hometree - Join Hometree Group and be at the forefront of transforming the residential energy landscape. Founded in 2015, Hometree began in the home cover market. Today were spearheading the shift to decentralised, digitised home energy systems using heat pumps, solar panels, batteries, EV chargers and smart controls. This approach isnt just about sustainability; it empowers homeowners to manage energy more efficiently and cost-effectively, setting new standards in energy consumption. * Financial Services: Here, you'll contribute to offering flexible financing options that make it feasible for homeowners to embrace renewable energy technologies and make essential upgrades. * Energy Services: Be part of our extensive network of local installation businesses that equip homeowne
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Landytech is on a mission to revolutionize the way that investment managers, asset owners and their advisors access asset information. Powered by Sesame, an industry-leading investment reporting platform, we are helping clients in over 15 countries make informed investment decisions and deliver insights faster. The company is growing rapidly and it's an exciting time to join, having secured $12M in Series B funding in January 2023. In just four years, it has gone from two co-founders to a team of 100+ staff, with offices in London and Paris. At Landytech, we see diversity as our strength with a team from over 15 countries and 14 languages spoken. Team & Role - We're seeking a talented Software Engineer to join our team. You'll build and maintain services and tools (written primarily in Python) that process and publish financial metrics, directly impacting how our cust
Landytech is on a mission to revolutionize the way that investment managers, asset owners and their advisors access asset information. Powered by Sesame, an industry-leading investment reporting platform, we are helping clients in over 15 countries make informed investment decisions and deliver insights faster. The company is growing rapidly and it's an exciting time to join, having secured $12M in Series B funding in January 2023. In just four years, it has gone from two co-founders to a team of 100+ staff, with offices in London and Paris. At Landytech, we see diversity as our strength with a team from over 15 countries and 14 languages spoken. Team & Role - We're seeking a talented Software Engineer to join our team. You'll build and maintain services and tools (written primarily in Python) that process and publish financial metrics, directly impacting how our cust
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Rayo, part of the UBDS group, is seeking a Full-Stack Developer to contribute to the development and support of cloud-native applications deployed on Amazon Web Services (AWS). The successful candidate will work across the full software development lifecycle, combining solid Java/Spring Boot back-end development with modern front-end skills using frameworks such as React or Angular. The role offers opportunities to support, design, and build scalable and secure solutions for high-impact public sector programmes. This position is suitable for candidates with foundational experience in full-stack development, as well as those with deeper technical capability looking to further progress within an Agile delivery environment. * Design, develop, and maintain scalable full-stack solutions hosted on AWS. * Build and integrate RESTful APIs using Java and Spring Boot.
Rayo, part of the UBDS group, is seeking a Full-Stack Developer to contribute to the development and support of cloud-native applications deployed on Amazon Web Services (AWS). The successful candidate will work across the full software development lifecycle, combining solid Java/Spring Boot back-end development with modern front-end skills using frameworks such as React or Angular. The role offers opportunities to support, design, and build scalable and secure solutions for high-impact public sector programmes. This position is suitable for candidates with foundational experience in full-stack development, as well as those with deeper technical capability looking to further progress within an Agile delivery environment. * Design, develop, and maintain scalable full-stack solutions hosted on AWS. * Build and integrate RESTful APIs using Java and Spring Boot.
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About us - At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you. About the
About us - At Xelix, we work with some of the worlds largest companies to automate and strengthen their financial controls. Our AI solutions redefine how Accounts Payable teams operate - moving from manual processes to automated, intelligent workflows. Xelix is a fast-paced scale-up - things move fast and expectations are high. We raised our Series B with Insight Partners in June 2025 and are expanding aggressively, whilst remaining profitable. We have over 100 talented people pulling together to achieve our goals. Everyone is trusted to take ownership, move fast and have a meaningful impact. We prioritise personal and professional growth, keep things fun & we love to celebrate a milestone together. In this role youll grow, be challenged and help shape the future of Xelix. If youre excited about building something special with us, wed love to hear from you. About the
REST API design
REST API design
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REST API design
REST API design
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Strong API development and database experience (Postgres/Oracle + SQL).
Strong API development and database experience (Postgres/Oracle + SQL).
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Responsibilities include understanding the client's world and use cases, managing requirements, platform training and configuration, dashboard creation, API enablement, partner workspace management (Newsletters, Reports), and troubleshooting. * Configure and optimise the Signal platform (dashboards, newsletters, reports, partner workspaces, API setups).
Responsibilities include understanding the client's world and use cases, managing requirements, platform training and configuration, dashboard creation, API enablement, partner workspace management (Newsletters, Reports), and troubleshooting. * Configure and optimise the Signal platform (dashboards, newsletters, reports, partner workspaces, API setups).
The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
The Runa API empowers thousands of businesses to make payments to 5 billion+ consumers in 190+ countries instantly to cards, wallets, bank accounts and gift cards.
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Securing and managing APIs using API Manager. * Managing the API development lifecycle from design to governance and management.
Securing and managing APIs using API Manager. * Managing the API development lifecycle from design to governance and management.
Bring thoughtful design practices to API development including versioning, authentication, and security * Have strong opinions on effective API design and data structure, but are open to evolving them * A solid understanding of API design principles including auth, scalability and security
Bring thoughtful design practices to API development including versioning, authentication, and security * Have strong opinions on effective API design and data structure, but are open to evolving them * A solid understanding of API design principles including auth, scalability and security
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Through our platform a merchant can connect via a simple API connection to the world's payment ecosystem, increasing conversion at lower cost and satisfying their entire payments needs.
Through our platform a merchant can connect via a simple API connection to the world's payment ecosystem, increasing conversion at lower cost and satisfying their entire payments needs.
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AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. We partner with PwC to support their contingent recruitment processes. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. PwC is a hugely diverse business, bound by our global purpose - to build trust in society and solve important problems. Our greatest opportunity to deliver our purpose is through meaningful work that makes a difference to our clients and society. We have a culture of high performance built on exceptional quality, ethical and professional standards. We lead by example.
AMS is a global workforce solutions partner committed to creating inclusive, dynamic, and future-ready workplaces. We help organisations adapt, grow, and thrive in an ever-evolving world by building, shaping, and optimising diverse talent strategies. We partner with PwC to support their contingent recruitment processes. Acting as an extension of their recruitment teams, we connect them with skilled interim and temporary professionals, fostering workplaces where everyone can contribute and succeed. PwC is a hugely diverse business, bound by our global purpose - to build trust in society and solve important problems. Our greatest opportunity to deliver our purpose is through meaningful work that makes a difference to our clients and society. We have a culture of high performance built on exceptional quality, ethical and professional standards. We lead by example.
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Senior Python Software Developer (SC Cleared)
Senior Python Software Developer (SC Cleared)
Certes IT Service Solutions
UK
£625 - £650 per day + Negotiable
Duration: 12 Months - Location: London & remote (hybrid) Rate: £650 per day - IR35 Status: Inside - Start: ASAP - A Senior Python Software Developer (SC Cleared) is required for our government client, where you will be working on a specific project where they are transforming and redesigning their data hub, which provides access to a variety of public sector data. You will work within a multi-disciplinary product team and lead the design, development, and maintenance of robust, scalable open data services and APIs - Provide strategic technical leadership by setting software architecture, engineering practices, and technical direction across the team - Define and evolve scalable, secure design patterns and coding standards, ensuring alignment with government standards and cross-government platforms - Collaborate with teams to select technologies, shape roadmaps, and de
Duration: 12 Months - Location: London & remote (hybrid) Rate: £650 per day - IR35 Status: Inside - Start: ASAP - A Senior Python Software Developer (SC Cleared) is required for our government client, where you will be working on a specific project where they are transforming and redesigning their data hub, which provides access to a variety of public sector data. You will work within a multi-disciplinary product team and lead the design, development, and maintenance of robust, scalable open data services and APIs - Provide strategic technical leadership by setting software architecture, engineering practices, and technical direction across the team - Define and evolve scalable, secure design patterns and coding standards, ensuring alignment with government standards and cross-government platforms - Collaborate with teams to select technologies, shape roadmaps, and de
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Job Title: SPM ServiceNow Developer - Location: Remote (Work from Home - UK) Job Type: Contract (Inside IR35) Duration: 12 Months Job Summary: Join Tata Consultancy Services (TCS) as an SPM ServiceNow Developer and be at the forefront of digital transformation. Work on innovative projects for some of the world's leading brands, making a meaningful impact in a dynamic, agile environment. Your expertise will help drive efficiency and optimization through the ServiceNow platform. * Work closely with the ServiceNow Solutions Architect to design and implement requirements from the SPM Process Team. * Develop, configure, and maintain the ServiceNow platform, primarily within the SPM (Strategic Portfolio Management) module. * Configure and customize the ServiceNow platform using JavaScript and ServiceNow APIs to extend capabilities and enhance user experience.
Job Title: SPM ServiceNow Developer - Location: Remote (Work from Home - UK) Job Type: Contract (Inside IR35) Duration: 12 Months Job Summary: Join Tata Consultancy Services (TCS) as an SPM ServiceNow Developer and be at the forefront of digital transformation. Work on innovative projects for some of the world's leading brands, making a meaningful impact in a dynamic, agile environment. Your expertise will help drive efficiency and optimization through the ServiceNow platform. * Work closely with the ServiceNow Solutions Architect to design and implement requirements from the SPM Process Team. * Develop, configure, and maintain the ServiceNow platform, primarily within the SPM (Strategic Portfolio Management) module. * Configure and customize the ServiceNow platform using JavaScript and ServiceNow APIs to extend capabilities and enhance user experience.
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Contract Role: Prompt Engineer (Salesforce & Generative AI Integration) Duration: 4–5 months (November – March) Hourly Rate: £54.60 - £60/hour inside IR35 - Location: Fully Remote (UK-based candidates only) Overview - We are seeking a highly skilled Prompt Engineer with deep expertise in the Salesforce platform and hands-on experience in Generative AI integration. This role bridges the gap between business requirements and intelligent automation, crafting high-impact prompts and embedding AI capabilities into Salesforce workflows to enhance customer experience and operational efficiency. Key Responsibilities - Salesforce Platform Expertise * Design and configure Salesforce objects, data models, and automation using Flows, Apex, and Lightning Web Components (LWC). * Leverage Service Cloud and Sales Cloud functionality to support AI-driven use cases.
Contract Role: Prompt Engineer (Salesforce & Generative AI Integration) Duration: 4–5 months (November – March) Hourly Rate: £54.60 - £60/hour inside IR35 - Location: Fully Remote (UK-based candidates only) Overview - We are seeking a highly skilled Prompt Engineer with deep expertise in the Salesforce platform and hands-on experience in Generative AI integration. This role bridges the gap between business requirements and intelligent automation, crafting high-impact prompts and embedding AI capabilities into Salesforce workflows to enhance customer experience and operational efficiency. Key Responsibilities - Salesforce Platform Expertise * Design and configure Salesforce objects, data models, and automation using Flows, Apex, and Lightning Web Components (LWC). * Leverage Service Cloud and Sales Cloud functionality to support AI-driven use cases.
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Freshworks Consultant / Developer (Contract Outside IR35) Duration: Initial 2-month contract (extension likely) Location: Remote / UK-based - Are you a technically skilled Freshworks Consultant or Developer with a passion for delivering high-quality ITSM and ESM solutions? Were seeking experienced contractors to support several active and upcoming Freshservice implementations for enterprise clients, working with a respected digital transformation consultancy that partners with major global organisations. The Opportunity Youll join a specialist team supporting multiple Freshworks platform projects, from ITSM implementations and global rollouts to service management optimisation and tooling improvements. This is a hands-on technical role ideal for consultants who enjoy configuring, developing, and integrating Freshservice solutions, while engaging directly with clients
Freshworks Consultant / Developer (Contract Outside IR35) Duration: Initial 2-month contract (extension likely) Location: Remote / UK-based - Are you a technically skilled Freshworks Consultant or Developer with a passion for delivering high-quality ITSM and ESM solutions? Were seeking experienced contractors to support several active and upcoming Freshservice implementations for enterprise clients, working with a respected digital transformation consultancy that partners with major global organisations. The Opportunity Youll join a specialist team supporting multiple Freshworks platform projects, from ITSM implementations and global rollouts to service management optimisation and tooling improvements. This is a hands-on technical role ideal for consultants who enjoy configuring, developing, and integrating Freshservice solutions, while engaging directly with clients
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Proficiency in data integration, API design, and user interface considerations.
Proficiency in data integration, API design, and user interface considerations.
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Develop iOS applications (Swift or Objective-C) with RESTful API integrations.
Develop iOS applications (Swift or Objective-C) with RESTful API integrations.
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Fortune 500 clients trust eGain AI knowledge solution to improve customer experience and reduce cost of service. Top rated by Gartner, eGain AI Knowledge Hub orchestrates AI and experts to deliver trusted answers to customers, agents, and field staff. We dream big and sweat details. We are diverse, optimistic, and tenacious. We take pride in what we do but we dont take ourselves too seriously. If work is fun for you, talk to us. We will not waste your time. Responsibilities * Discover client requirements and pain points to propose and configure tailored solutions. * Architect AI Knowledge Solutions leveraging eGain product capabilities and architecture in the context of the clients tech stack. * Develop and present technical proposals and sharp RFP responses. Education and Experience * 7 years of experience in developing AI based solutions for customer service/Contact
Fortune 500 clients trust eGain AI knowledge solution to improve customer experience and reduce cost of service. Top rated by Gartner, eGain AI Knowledge Hub orchestrates AI and experts to deliver trusted answers to customers, agents, and field staff. We dream big and sweat details. We are diverse, optimistic, and tenacious. We take pride in what we do but we dont take ourselves too seriously. If work is fun for you, talk to us. We will not waste your time. Responsibilities * Discover client requirements and pain points to propose and configure tailored solutions. * Architect AI Knowledge Solutions leveraging eGain product capabilities and architecture in the context of the clients tech stack. * Develop and present technical proposals and sharp RFP responses. Education and Experience * 7 years of experience in developing AI based solutions for customer service/Contact
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Experience with front-end JS frameworks (ideally Vue.js 3 + Composition API)
Experience with front-end JS frameworks (ideally Vue.js 3 + Composition API)
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Experience with API integrations or middleware platforms. Operating in over 37 markets and 25 currencies, Tillo processes billions in gift card transactions through a single, plug-and-go API, powering rewards and incentives for the worlds leading businesses.
Experience with API integrations or middleware platforms. Operating in over 37 markets and 25 currencies, Tillo processes billions in gift card transactions through a single, plug-and-go API, powering rewards and incentives for the worlds leading businesses.