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Locations
Locations
Salaries
Date posted
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63 Permanent API jobs in Barbican, City of London + 20 miles
183 exact matches jobs are outside your preferred location
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Senior Software Engineer
Senior Software Engineer
Verifile Ltd
Bedford, Bedfordshire, MK44 3JZ
From £60,000 to £70,000 per annum Plus excellent benefits
Strong software development skills across the stack using C#, ASP .NET, Blazor, API development, microservices, containers, and deployment pipelines.
Strong software development skills across the stack using C#, ASP .NET, Blazor, API development, microservices, containers, and deployment pipelines.
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We collaborate closely with product, engineering, research, and GTM teams to ensure the developer journeyfrom initial API call to full production deploymentis seamless, effective, and delightful.
We collaborate closely with product, engineering, research, and GTM teams to ensure the developer journeyfrom initial API call to full production deploymentis seamless, effective, and delightful.
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Wallarm is the only solution that unifies best-in-class API Security and WAAP (Next-Gen WAF) capabilities to protect your entire API and web application portfolio in multi-cloud and cloud-native environments. * Recommend API security best practices, application architectures, platforms and application infrastructure required to successfully implement a complete API security solution based on Wallarm - Prior experience in API security, API management, SIEM, Software Development, DevOps, DevSecOps, or web application firewalls is preferred
Wallarm is the only solution that unifies best-in-class API Security and WAAP (Next-Gen WAF) capabilities to protect your entire API and web application portfolio in multi-cloud and cloud-native environments. * Recommend API security best practices, application architectures, platforms and application infrastructure required to successfully implement a complete API security solution based on Wallarm - Prior experience in API security, API management, SIEM, Software Development, DevOps, DevSecOps, or web application firewalls is preferred
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Background in developing with C#, .NET, Web Services, Web Forms, MVC, JavaScript, jQuery, CSS, HTML, React, Web APIs and Visual Studio, API integrations
Background in developing with C#, .NET, Web Services, Web Forms, MVC, JavaScript, jQuery, CSS, HTML, React, Web APIs and Visual Studio, API integrations
Work closely with Windows OS components , including Windows Registry, COM API, Windows Events, and system services . * Strong understanding of Windows internals , including services, registry, COM API, and event handling.
Work closely with Windows OS components , including Windows Registry, COM API, Windows Events, and system services . * Strong understanding of Windows internals , including services, registry, COM API, and event handling.
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Oversee API integrations, metadata schemas, and tool interoperability across platforms.
Oversee API integrations, metadata schemas, and tool interoperability across platforms.
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As an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure. As a Developer Advocate , you will create high-quality written content that resonates with developers, highlighting our API offerings, partnerships, and more. * API experience: Familiarity with RESTful APIs and cloud communications platforms.
As an emerging leader in the $10B+ communications API market, we empower global brands to connect better with their customers, employees, and partners through transformative communications experiences. For example, Vonage API solutions empower organizations to build their custom omnichannel communications structure. As a Developer Advocate , you will create high-quality written content that resonates with developers, highlighting our API offerings, partnerships, and more. * API experience: Familiarity with RESTful APIs and cloud communications platforms.
Strong understanding of API design
Strong understanding of API design
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API testing tools like SoapUI and Postman
API testing tools like SoapUI and Postman
Reporting to our Solutions Architect Team Lead, Alex Karet - About us - At hyperexponential, our mission is to help the world take more risk - safely. Our SaaS platform, hx Renew , is transforming the insurance industry by enabling insurers to make better decisions, faster and more confidently than ever before. In the seven years since our founding, weve become the market leader. We work with 40+ customers globally - including a third of the London Market - and were only just getting started. Its always the best time to join hyperexponential. But the best best time? Thats now. Field Engineering at hyperexponential - Our Field Engineering team provides a world-class technical capability to our Revenue function, with a mission to supercharge its three core pillars of Sales, Marketing, and Customer. Our primary objective is to help our customers realise the full value an
Reporting to our Solutions Architect Team Lead, Alex Karet - About us - At hyperexponential, our mission is to help the world take more risk - safely. Our SaaS platform, hx Renew , is transforming the insurance industry by enabling insurers to make better decisions, faster and more confidently than ever before. In the seven years since our founding, weve become the market leader. We work with 40+ customers globally - including a third of the London Market - and were only just getting started. Its always the best time to join hyperexponential. But the best best time? Thats now. Field Engineering at hyperexponential - Our Field Engineering team provides a world-class technical capability to our Revenue function, with a mission to supercharge its three core pillars of Sales, Marketing, and Customer. Our primary objective is to help our customers realise the full value an
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Additionally, our apps and API are trusted by tens of thousands of drivers and fleets including Blue Badge innovators Motability Operations.
Additionally, our apps and API are trusted by tens of thousands of drivers and fleets including Blue Badge innovators Motability Operations.
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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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AI API integration and database optimization experience.
AI API integration and database optimization experience.
Data engineering to build data pipelines through integration and API's.
Data engineering to build data pipelines through integration and API's.
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Upvests Investment API is easy to integrate so that fintechs and enterprises alike can save resources and fully focus on their core business.? Were building the first European Investment API to enable any financial institution offering a wide range of efficient and transparent investment products, such as stocks and ETFs in nominal, portfolio, and fractional form. * Continuous learning: The complex yet fascinating field of investments, building an API product on a state-of-the-art tech stack, and working with the most relevant fintechs and financial institutions provide for an incredibly rewarding learning experience.
Upvests Investment API is easy to integrate so that fintechs and enterprises alike can save resources and fully focus on their core business.? Were building the first European Investment API to enable any financial institution offering a wide range of efficient and transparent investment products, such as stocks and ETFs in nominal, portfolio, and fractional form. * Continuous learning: The complex yet fascinating field of investments, building an API product on a state-of-the-art tech stack, and working with the most relevant fintechs and financial institutions provide for an incredibly rewarding learning experience.
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Balance roadmap and service levels: Prioritise platform improvements, API consistency, reliability SLAs, and technical documentation to ensure smooth usage by other teams. * 4+ years in product management with a strong technical focus-ideally in infrastructure, platform, or API products.
Balance roadmap and service levels: Prioritise platform improvements, API consistency, reliability SLAs, and technical documentation to ensure smooth usage by other teams. * 4+ years in product management with a strong technical focus-ideally in infrastructure, platform, or API products.
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Familiarity with common API and SDK's with the ability to quickly learn custom API concepts.
Familiarity with common API and SDK's with the ability to quickly learn custom API concepts.
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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Good understanding of API technologies and troubleshooting
Good understanding of API technologies and troubleshooting
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Define and manage the external access layer , creating a secure and governed API Gateway that empowers third-party developers to integrate independently. * Establish a consistent API publishing workflow for all internal squads, ensuring quality and governance as we scale our external offerings. You have a deep understanding of developer platforms and API ecosystems, with experience in both internal productivity and external integration. * Sector knowledge: You have technical fluency in areas like CI/CD, observability, API gateways, and infrastructure-as-code. Deliver a world-class external access layer, including a Developer Portal and governed API Gateway, to empower third-party developers to self-serve and integrate seamlessly.
Define and manage the external access layer , creating a secure and governed API Gateway that empowers third-party developers to integrate independently. * Establish a consistent API publishing workflow for all internal squads, ensuring quality and governance as we scale our external offerings. You have a deep understanding of developer platforms and API ecosystems, with experience in both internal productivity and external integration. * Sector knowledge: You have technical fluency in areas like CI/CD, observability, API gateways, and infrastructure-as-code. Deliver a world-class external access layer, including a Developer Portal and governed API Gateway, to empower third-party developers to self-serve and integrate seamlessly.
Contractual hours - 36.25 - Basis - Full time - Job category/type * Central Functions - Date posted - 10/09/2025 - REQ003131 - Location: London Grade: Consultant Employment Type: Permanent, Full Time Remote REQ003131 - XPS Pensions Group is no ordinary company. We've earned numerous awards and accolades, making us an industry leader in Pensions Consultancy. As the largest pure pensions consultancy in the UK, we are a team of approximately 2000 employees spread across 15 locations nationwide. Listed on the London Stock Exchange Main Market, we pride ourselves on our ability to think and act differently, offering expert advice to over 1600 pension schemes and administering pensions for over 1,000,000 members. We are currently seeking Power Platform Developer to join our IT team. XPS Group IT provides IT services to all 2000 employees in offices located across the UK and
Contractual hours - 36.25 - Basis - Full time - Job category/type * Central Functions - Date posted - 10/09/2025 - REQ003131 - Location: London Grade: Consultant Employment Type: Permanent, Full Time Remote REQ003131 - XPS Pensions Group is no ordinary company. We've earned numerous awards and accolades, making us an industry leader in Pensions Consultancy. As the largest pure pensions consultancy in the UK, we are a team of approximately 2000 employees spread across 15 locations nationwide. Listed on the London Stock Exchange Main Market, we pride ourselves on our ability to think and act differently, offering expert advice to over 1600 pension schemes and administering pensions for over 1,000,000 members. We are currently seeking Power Platform Developer to join our IT team. XPS Group IT provides IT services to all 2000 employees in offices located across the UK and
Why join Tipalti? Tipalti is the AI-powered platform for finance automation, elevating how finance teams operate in the global economy. We empower our customers to scale faster and smarter by removing the complexities of doing global business and accelerating their finance operations efficiency. Our platform provides a comprehensive suite of finance automation solutions designed for mid-market businesses across accounts payable, global payouts, procurement, employee expenses, corporate cards, supplier management, tax compliance, and treasury. Tipalti partners with leading financial institutions such as Citi, Wells Fargo, J.P. Morgan, and Visa, enabling over 5,000 global companies to efficiently and securely pay millions of suppliers and payees across 200+ countries and territories, in 120 currencies.
Why join Tipalti? Tipalti is the AI-powered platform for finance automation, elevating how finance teams operate in the global economy. We empower our customers to scale faster and smarter by removing the complexities of doing global business and accelerating their finance operations efficiency. Our platform provides a comprehensive suite of finance automation solutions designed for mid-market businesses across accounts payable, global payouts, procurement, employee expenses, corporate cards, supplier management, tax compliance, and treasury. Tipalti partners with leading financial institutions such as Citi, Wells Fargo, J.P. Morgan, and Visa, enabling over 5,000 global companies to efficiently and securely pay millions of suppliers and payees across 200+ countries and territories, in 120 currencies.
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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Hive Perform is revolutionising how sales teams win deals. We're the AI-native platform bridging the gap between revenue intelligence and sales training for scaling businesses trusted by over 10,000 employees at leading companies. We don't just show you what happened; we show you what to do next. Our science-based analysis framework gives complete deal visibility, tracks strategy execution, and guides reps on exact next steps to close more deals. As a business backed by Blenheim Chalcot, a world-leading venture builder, you'll join a network of organisations at the cutting edge of AI and innovation. If you're passionate about applying AI to solve real revenue challenges and want to make a meaningful impact at a growing startup, we'd love to hear from you. We're seeking a talented AI Engineer to join our mission of transforming how businesses win deals.
Hive Perform is revolutionising how sales teams win deals. We're the AI-native platform bridging the gap between revenue intelligence and sales training for scaling businesses trusted by over 10,000 employees at leading companies. We don't just show you what happened; we show you what to do next. Our science-based analysis framework gives complete deal visibility, tracks strategy execution, and guides reps on exact next steps to close more deals. As a business backed by Blenheim Chalcot, a world-leading venture builder, you'll join a network of organisations at the cutting edge of AI and innovation. If you're passionate about applying AI to solve real revenue challenges and want to make a meaningful impact at a growing startup, we'd love to hear from you. We're seeking a talented AI Engineer to join our mission of transforming how businesses win deals.
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About AppyWay - AppyWay helps cities reduce carbon emissions by making it easier to manage and find parking. The company started with a simple parking app called AppyParking because street parking data wasnt easy to access or understand. This led them to create the largest database of standardized parking data in the UK. Our Traffic Suite platform empowers local authorities with best-in-class kerbside data, APIs, and tools to manage traffic orders, parking, and street space more efficiently. Now, AppyWays platform is used by cities across Europe and even in New York City. It provides parking maps, real-time availability, and cashless payment options to help drivers and delivery fleets find parking more efficiently. Theyve raised over £20 million from investors like Hyundai and Mastercard to continue growing.
About AppyWay - AppyWay helps cities reduce carbon emissions by making it easier to manage and find parking. The company started with a simple parking app called AppyParking because street parking data wasnt easy to access or understand. This led them to create the largest database of standardized parking data in the UK. Our Traffic Suite platform empowers local authorities with best-in-class kerbside data, APIs, and tools to manage traffic orders, parking, and street space more efficiently. Now, AppyWays platform is used by cities across Europe and even in New York City. It provides parking maps, real-time availability, and cashless payment options to help drivers and delivery fleets find parking more efficiently. Theyve raised over £20 million from investors like Hyundai and Mastercard to continue growing.
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