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24 Permanent API jobs in West Byfleet + 20 miles
184 exact matches jobs are outside your preferred location
Senior Security Engineer (PurView, Sentinel, Defender)
Senior Security Engineer (PurView, Sentinel, Defender)
Invitise Ltd
WC1A, Central London
Up to £70,000 per annum + Excellent Benefits
PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
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Youll play a key part in moving away from legacy components towards a clean, API-driven architecture.
Youll play a key part in moving away from legacy components towards a clean, API-driven architecture.
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Integration & API Testing - proficiency with REST/OData service testing using tools like Postman or SoapUI
Integration & API Testing - proficiency with REST/OData service testing using tools like Postman or SoapUI
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Contribute to backend/API testing and support security testing initiatives. * Strong knowledge of API testing and backend validation.
Contribute to backend/API testing and support security testing initiatives. * Strong knowledge of API testing and backend validation.
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Experience with API design and development for both internal and external use cases
Experience with API design and development for both internal and external use cases
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The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
The ideal candidate will have a robust background in AWS, Node.js, and React, along with expertise in NoSQL databases, RESTful API design and development, product development, and deployment of applications on both iOS and Android platforms.
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Knowledge of document databases (MongoDB) and API interaction tools (such as Postman, or similar) * Experience with industry standard API Authentication/Authorization, including OAuth, OpenID Connect, SAML2
Knowledge of document databases (MongoDB) and API interaction tools (such as Postman, or similar) * Experience with industry standard API Authentication/Authorization, including OAuth, OpenID Connect, SAML2
Familiarity with REST API testing using tools like Postman.
Familiarity with REST API testing using tools like Postman.
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Currently, our micro-services communicate via REST API calls, fostering seamless integration between different services.
Currently, our micro-services communicate via REST API calls, fostering seamless integration between different services.
Demonstrable experience of Application Program Interface (API) testing within Agile sprints, using tools such as Postman and/or other industry-recognized API testing tools.
Demonstrable experience of Application Program Interface (API) testing within Agile sprints, using tools such as Postman and/or other industry-recognized API testing tools.
Experience with API Gateways (e.g. GCP). * Knowledge of security best practices in API development (e.g., SAML, OAuth, JWT).
Experience with API Gateways (e.g. GCP). * Knowledge of security best practices in API development (e.g., SAML, OAuth, JWT).
Experience in API integration (REST/SOAP) through ERP systems, IoT devices and or third-party logistics platforms. * API/Data Integration Accuracy: % of successful data exchanges between WMS and ERP/third-party systems without manual intervention.
Experience in API integration (REST/SOAP) through ERP systems, IoT devices and or third-party logistics platforms. * API/Data Integration Accuracy: % of successful data exchanges between WMS and ERP/third-party systems without manual intervention.
In this critical role, you will be instrumental in driving the adoption, engagement, and growth of Smartsheet's developer platform and API capabilities. * Collaborate with cross-functional teams to develop and execute comprehensive go-to-market plans including customer communications for new API capabilities, SDKs, developer tools, and platform enhancements. * Clearly communicate technical details to customers regarding API changes, releases, and deprecations including writing release notes and collaborating on developer documentation and API guides.
In this critical role, you will be instrumental in driving the adoption, engagement, and growth of Smartsheet's developer platform and API capabilities. * Collaborate with cross-functional teams to develop and execute comprehensive go-to-market plans including customer communications for new API capabilities, SDKs, developer tools, and platform enhancements. * Clearly communicate technical details to customers regarding API changes, releases, and deprecations including writing release notes and collaborating on developer documentation and API guides.
Familiarity with WhatsApp Business API, web-socket or webhook architectures, and common live-chat SDKs.
Familiarity with WhatsApp Business API, web-socket or webhook architectures, and common live-chat SDKs.
This includes native integrations with BI tools, CRMs, AI platforms, and LLMs, as well as expanding and owning our API platform. Own and evolve the GWI Data API by defining key use cases, prioritising the roadmap, maintaining comprehensive documentation, supporting partner integrations, and driving adoption across customers and third-party developers. API Scale Leadership - Proven track record building and scaling public APIs to drive $100 M+ in ARR, from roadmap through adoption and monetization. API Product Leadership - You own APIs end to end, from roadmap to developer experience, and know how to scale adoption and usage.
This includes native integrations with BI tools, CRMs, AI platforms, and LLMs, as well as expanding and owning our API platform. Own and evolve the GWI Data API by defining key use cases, prioritising the roadmap, maintaining comprehensive documentation, supporting partner integrations, and driving adoption across customers and third-party developers. API Scale Leadership - Proven track record building and scaling public APIs to drive $100 M+ in ARR, from roadmap through adoption and monetization. API Product Leadership - You own APIs end to end, from roadmap to developer experience, and know how to scale adoption and usage.
From refining API design to optimising performance and observability, youll be the driving force behind the systems that keep Onetrace running smoothly and growing fast. * RESTful API design and implementation
From refining API design to optimising performance and observability, youll be the driving force behind the systems that keep Onetrace running smoothly and growing fast. * RESTful API design and implementation
Leverage knowledge of data analysis, API documentation and payment processing manage, coach, and develop a team of hybrid L1 and L2 associates
Leverage knowledge of data analysis, API documentation and payment processing manage, coach, and develop a team of hybrid L1 and L2 associates
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lastupdated - 09/05/2025 - jobtitle - Job Description - Role - Senior Consultant - Required experience - Java, Spring boot, Microservices, RestAPI, CICD **Location - Burgess Hill - As a Senior Consultant, you are an expert at contributing to different phases of the consulting lifecycle. You will be intensely involved in; you will define the problem, propose and refine the solution. You will also play an important role in the development, configuration and deployment of the overall solution. You will guide teams on project processes, deliverables and contribute to the proposal development, client training and internal capability-building and help detail the project scope. You will have the opportunity to shape value-adding consulting solutions that enable our clients to meet the changing needs of the global landscape.
lastupdated - 09/05/2025 - jobtitle - Job Description - Role - Senior Consultant - Required experience - Java, Spring boot, Microservices, RestAPI, CICD **Location - Burgess Hill - As a Senior Consultant, you are an expert at contributing to different phases of the consulting lifecycle. You will be intensely involved in; you will define the problem, propose and refine the solution. You will also play an important role in the development, configuration and deployment of the overall solution. You will guide teams on project processes, deliverables and contribute to the proposal development, client training and internal capability-building and help detail the project scope. You will have the opportunity to shape value-adding consulting solutions that enable our clients to meet the changing needs of the global landscape.
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
Any company can tell you about how they are a multi award winning, market leading business and yes, we are both of those things in the world of IoT connectivity! But were more than that. Our mission? To make IoT management a breeze for any device, anywhere. With over 10 million IoT subscriptions active in 165 countries and direct partnerships with 50 mobile networks, we connect you to more than 750 networks worldwide, delivering unmatched value across the IoT connectivity chain. Innovation is in our DNA, and we have an insatiable hunger to wow! While we may not always get it right, our drive to collaborate, innovate, and achieve top-notch customer satisfaction never wavers. We offer industry expertise, stellar service support, and the most flexible, resilient, and secure connectivity solutions on the market.
We are looking for an ambitious, warm and inquisitive individual to join our Development team as a Quadient Inspire Developer for variable omni-channel communications. You will be reporting directly to the Head of Development. Ability to install/setup/maintain and develop Inspire Interactive. 1. Advanced in Inspire Designer - 2. Advanced in Inspire Designer Scripting - 3. Highly knowledgeable in Inspire Interactive - 4. Advanced in Inspire Scaler or Inspire Automation ( Scaler preferable but plenty of crossover and transferable skills from automation) 5. Able to create and setup new tenants / companies in Interactive - 6. Confident in creating and managing base templates within Interactive - 7. Confident in creating and managing templates within Interactive - 8. Confident in managing approval processes (an Interactive approval process) including adding basic forms to
We are looking for an ambitious, warm and inquisitive individual to join our Development team as a Quadient Inspire Developer for variable omni-channel communications. You will be reporting directly to the Head of Development. Ability to install/setup/maintain and develop Inspire Interactive. 1. Advanced in Inspire Designer - 2. Advanced in Inspire Designer Scripting - 3. Highly knowledgeable in Inspire Interactive - 4. Advanced in Inspire Scaler or Inspire Automation ( Scaler preferable but plenty of crossover and transferable skills from automation) 5. Able to create and setup new tenants / companies in Interactive - 6. Confident in creating and managing base templates within Interactive - 7. Confident in creating and managing templates within Interactive - 8. Confident in managing approval processes (an Interactive approval process) including adding basic forms to
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Get to know The Pokémon Company International - The Pokémon Company International, a subsidiary of The Pokémon Company in Japan, manages the property outside of Asia and is responsible for brand management, licensing, marketing, the Pokémon Trading Card Game, the animated TV series, home entertainment, and the official Pokémon website. Pokémon was launched in Japan in 1996 and today is one of the most popular children's entertainment properties in the world. Get to know the role * Job Title: Manager, Software Development - This role is ideal for a technically adept leader with a strong understanding of modern cloud-native architectures, agile delivery, and platform engineering. Youll be responsible for ensuring the platform is scalable, resilient, and delivers a world-class shopping experience to Pokémon fans globally. * People Manager: Yes - What youll do
Get to know The Pokémon Company International - The Pokémon Company International, a subsidiary of The Pokémon Company in Japan, manages the property outside of Asia and is responsible for brand management, licensing, marketing, the Pokémon Trading Card Game, the animated TV series, home entertainment, and the official Pokémon website. Pokémon was launched in Japan in 1996 and today is one of the most popular children's entertainment properties in the world. Get to know the role * Job Title: Manager, Software Development - This role is ideal for a technically adept leader with a strong understanding of modern cloud-native architectures, agile delivery, and platform engineering. Youll be responsible for ensuring the platform is scalable, resilient, and delivers a world-class shopping experience to Pokémon fans globally. * People Manager: Yes - What youll do
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Power BI & Fabric Developer (Project Controls/Primavera P6 Data) at BaseOne, London, £Competitive Day Rate
Power BI & Fabric Developer (Project Controls/Primavera P6 Data) at BaseOne, London, £Competitive Day Rate
Baseone
London
Competitive
Contract / FTC / Perm | Remote (UK) with occasional client site visits | Competitive - About BaseOne - At BaseOne, we design and deliver human-centric data solutions for some of the worlds most complex projects from major infrastructure to energy and banking. Our team blends deep domain expertise in project controls with modern tools like Power BI, Microsoft Fabric, and AI-driven analytics , helping clients make better decisions with confidence. Were now looking for a Power BI & Fabric Developer with hands-on experience in Primavera P6 project controls data to join our delivery team. This is a chance to work on high-impact projects across the UK and internationally, building reporting solutions that simplify complexity for decision makers. The Role - Youll be part of a multidisciplinary team working directly with project controls, PMO, and client stakeholders.
Contract / FTC / Perm | Remote (UK) with occasional client site visits | Competitive - About BaseOne - At BaseOne, we design and deliver human-centric data solutions for some of the worlds most complex projects from major infrastructure to energy and banking. Our team blends deep domain expertise in project controls with modern tools like Power BI, Microsoft Fabric, and AI-driven analytics , helping clients make better decisions with confidence. Were now looking for a Power BI & Fabric Developer with hands-on experience in Primavera P6 project controls data to join our delivery team. This is a chance to work on high-impact projects across the UK and internationally, building reporting solutions that simplify complexity for decision makers. The Role - Youll be part of a multidisciplinary team working directly with project controls, PMO, and client stakeholders.
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London - Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a proactive, thorough Senior Software Engineer to help build our Defi platform. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. Build on our DeFi wallet platform, expanding support for multiple networks - Develop and integrate APIs from new and existing services, to our various product applications. Be a part of a dedicated engineering team committed to applying the highest
London - Offering the largest production blockchain platform in the world, we share the passion to code, create, and ultimately build an open, accessible and fair financial future, one piece of software at a time. We are looking for a proactive, thorough Senior Software Engineer to help build our Defi platform. You will play a critical role in building financial and crypto-native products, services and APIs. As a Senior Back-End Engineer you should lead by example - driving the technical discussions, influencing the approach and making a positive impact on the team's development by advocating the best engineering practices. Build on our DeFi wallet platform, expanding support for multiple networks - Develop and integrate APIs from new and existing services, to our various product applications. Be a part of a dedicated engineering team committed to applying the highest
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27 June 2025 - Job Description - Reporting of the Role - This role reports to Lead Python Developer - Overview of job - We're looking for a multi-skilled, adaptable developer with a passion for high quality code to join our established development team. 3 best things about the job * Getting to work on some outstanding products that get used by over 30 million people. * Work in a team that this is a fun, creative and satisfying place for developers to work. * Work in a team where we believe in code reviews, paired programming, continuous integration, hack time and investing in developers to make them better. * Contributed to delivering phenomenal solutions for delivering the latest innovations to our digital products. * Proven a collaborative approach to delivering solutions. * Shown passion to learn new things and to share knowledge with others.
27 June 2025 - Job Description - Reporting of the Role - This role reports to Lead Python Developer - Overview of job - We're looking for a multi-skilled, adaptable developer with a passion for high quality code to join our established development team. 3 best things about the job * Getting to work on some outstanding products that get used by over 30 million people. * Work in a team that this is a fun, creative and satisfying place for developers to work. * Work in a team where we believe in code reviews, paired programming, continuous integration, hack time and investing in developers to make them better. * Contributed to delivering phenomenal solutions for delivering the latest innovations to our digital products. * Proven a collaborative approach to delivering solutions. * Shown passion to learn new things and to share knowledge with others.
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The Firm - XTX Markets is a leading algorithmic trading firm which uses state-of-the-art machine learning technology to produce price forecasts for over 50,000 financial instruments across equities, fixed income, currencies, commodities and crypto. It uses those forecasts to trade on exchanges and alternative trading venues, and to offer differentiated liquidity directly to clients worldwide. The firm trades over $250bn a day across 35 countries and has over 250 employees based in London, Singapore, New York, Paris, Bristol, Mumbai, Yerevan and Kajaani. We leverage the talent of the people who work here, modern computational techniques and state-of-the-art research infrastructure to analyse large data sets across markets quickly and efficiently, to maximize the effectiveness of our proprietary trading algorithms. We are actively seeking new methods and ideas.
The Firm - XTX Markets is a leading algorithmic trading firm which uses state-of-the-art machine learning technology to produce price forecasts for over 50,000 financial instruments across equities, fixed income, currencies, commodities and crypto. It uses those forecasts to trade on exchanges and alternative trading venues, and to offer differentiated liquidity directly to clients worldwide. The firm trades over $250bn a day across 35 countries and has over 250 employees based in London, Singapore, New York, Paris, Bristol, Mumbai, Yerevan and Kajaani. We leverage the talent of the people who work here, modern computational techniques and state-of-the-art research infrastructure to analyse large data sets across markets quickly and efficiently, to maximize the effectiveness of our proprietary trading algorithms. We are actively seeking new methods and ideas.
Related Jobs
Locations
- Shadwell
- The City, City (EC2)
- The City, City (EC3)
- Shoreditch
- The City, City (EC4)
- Charing Cross
- Gilwell Park
- Holloway
- Pimlico
- Soho
- City of London
- Central London
- West End
- East London
- Reading
- North West London
- Fareham
- South West London
- West London
- Basingstoke
- London
- Berkshire
- Hampshire
- Surrey
- Buckinghamshire
- Hertfordshire
- West Sussex
- East Sussex
- Oxfordshire
- South East