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9 Permanent API jobs in South East London + 20 miles
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Python, Flask ,Azure, MySQL, API, Django, FastAPI
Python, Flask ,Azure, MySQL, API, Django, FastAPI
NEWFEATURED
Backend Engineer - Scale Systems with Real Impact ?? Tired of tinkering at the edges? Want to actually shape the backbone of a platform that's transforming how the world's biggest enterprises run their tech? This is one of those rare roles where you get in early, build the foundations, and watch your work scale across global businesses. We're working with a high-growth London startup on a mission to reinvent enterprise software. Their AI-driven platform is already saving household-name customers millions in IT costs, shaving months off ERP project timelines, and making sense of the mess that legacy systems leave behind. SAP is just the beginning - they're building a whole new category of Enterprise System Intelligence. The Role * Build core systems capable of handling tens of millions of lines of code and large-scale LLM workloads.
Backend Engineer - Scale Systems with Real Impact ?? Tired of tinkering at the edges? Want to actually shape the backbone of a platform that's transforming how the world's biggest enterprises run their tech? This is one of those rare roles where you get in early, build the foundations, and watch your work scale across global businesses. We're working with a high-growth London startup on a mission to reinvent enterprise software. Their AI-driven platform is already saving household-name customers millions in IT costs, shaving months off ERP project timelines, and making sense of the mess that legacy systems leave behind. SAP is just the beginning - they're building a whole new category of Enterprise System Intelligence. The Role * Build core systems capable of handling tens of millions of lines of code and large-scale LLM workloads.
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Head of New Product Delivery (Insurance) *12 month FTC*
Head of New Product Delivery (Insurance) *12 month FTC*
Saga Group Limited
North London, London, N1 4AC
£70,000 - £90,000 dependent on experience + car allowance
Head of New Product Delivery (Insurance) £70,000 - £90,000 dependent on experience + car allowance - 12 month secondment - Hybrid London/Folkestone - At Saga, were not just a business were a trusted brand, built on care, understanding, and delivering the very best for our customers. At Saga we are driving forward in our vision to continue to provide our experience customers with best-in-class insurance products that support their individual needs. In this newly created role, youll join us as Head of Product Development to lead the development of new insurance products. Reporting to the Chief Commercial Officer, you will own the new product delivery agenda, manage the backlog, and drive delivery - working closely with internal teams and partners to launch customer-focused, compliant, and commercially successful products.
Head of New Product Delivery (Insurance) £70,000 - £90,000 dependent on experience + car allowance - 12 month secondment - Hybrid London/Folkestone - At Saga, were not just a business were a trusted brand, built on care, understanding, and delivering the very best for our customers. At Saga we are driving forward in our vision to continue to provide our experience customers with best-in-class insurance products that support their individual needs. In this newly created role, youll join us as Head of Product Development to lead the development of new insurance products. Reporting to the Chief Commercial Officer, you will own the new product delivery agenda, manage the backlog, and drive delivery - working closely with internal teams and partners to launch customer-focused, compliant, and commercially successful products.
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ABAP Developer - Break out of the SAP Box
ABAP Developer - Break out of the SAP Box
LJ Recruitment Limited
EC1, City of London
£50000 - £75000 per annum
ABAP Developer ? AI / Startup Role?? Most ABAP roles keep you maintaining the same old codebase. This one lets you take your SAP expertise and plug it straight into a modern AI platform that's transforming how global enterprises run their tech. This London startup is tackling a multi-billion-dollar problem: helping the world's biggest companies turn ERP chaos into clarity. Their AI engine saves millions in IT costs, accelerates project timelines by months, and modernises decades-old systems in ways that have never been done before. This is a role for those who live and breathe tech. Hours run 9am-7pm, and the expectation is clear: hard work and full commitment are what make the difference here. What you'll do * Write and optimise ABAP while shaping how AI agents interpret SAP. * Go beyond SAP, contribute to backend services, APIs, and infrastructure.
ABAP Developer ? AI / Startup Role?? Most ABAP roles keep you maintaining the same old codebase. This one lets you take your SAP expertise and plug it straight into a modern AI platform that's transforming how global enterprises run their tech. This London startup is tackling a multi-billion-dollar problem: helping the world's biggest companies turn ERP chaos into clarity. Their AI engine saves millions in IT costs, accelerates project timelines by months, and modernises decades-old systems in ways that have never been done before. This is a role for those who live and breathe tech. Hours run 9am-7pm, and the expectation is clear: hard work and full commitment are what make the difference here. What you'll do * Write and optimise ABAP while shaping how AI agents interpret SAP. * Go beyond SAP, contribute to backend services, APIs, and infrastructure.
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Liberty Wines is modernising its data estate: migrating from on-prem Analysis Services to the cloud, moving our WMS, ERP and bespoke apps to scalable platforms, and expanding AI/ML initiatives. We are evaluating both Fabric and Databricks as a potential strategic fit. As our hands-on Data & Analytics Engineer, youll play a key role in shaping and influencing that decision, helping assess the best platform for our needs based on your experience and contributing to successful delivery on either. You will work end-to-end, from schema design to dashboard storytelling, and be the pivotal data voice in the Technology team. This role offers broad ownership across tooling, standards, engineering and enablement rather than being confined to a narrow BI silo. Key Responsibilities - Data Platform Build-out * Design relational & Lakehouse schemas in Fabric or Databricks
Liberty Wines is modernising its data estate: migrating from on-prem Analysis Services to the cloud, moving our WMS, ERP and bespoke apps to scalable platforms, and expanding AI/ML initiatives. We are evaluating both Fabric and Databricks as a potential strategic fit. As our hands-on Data & Analytics Engineer, youll play a key role in shaping and influencing that decision, helping assess the best platform for our needs based on your experience and contributing to successful delivery on either. You will work end-to-end, from schema design to dashboard storytelling, and be the pivotal data voice in the Technology team. This role offers broad ownership across tooling, standards, engineering and enablement rather than being confined to a narrow BI silo. Key Responsibilities - Data Platform Build-out * Design relational & Lakehouse schemas in Fabric or Databricks
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Sterling Williams are working alongside an International Bank looking to hire a hands-on, technical Project Manager on an 18-month FTC basis to support a changing core banking system. You will play a crucial role in overseeing and implementing complex technical integration projects e.g. digital platforms, GL, Payments and other 3rd party systems covering KYC/AML etc. 18 month Fixed Term Contract initially - Salary: £80,000 pa plus benefits - Full-Time; office based 4 days per week (West End of London) The ideal candidate will have a strong background in software development, system architecture, and project management and will be responsible for leading integration efforts. * Lead the integration stream for the core banking project, focusing on technical aspects. * Assist in the transition to new digital initiatives, ensuring a safe, secure, and risk-managed process.
Sterling Williams are working alongside an International Bank looking to hire a hands-on, technical Project Manager on an 18-month FTC basis to support a changing core banking system. You will play a crucial role in overseeing and implementing complex technical integration projects e.g. digital platforms, GL, Payments and other 3rd party systems covering KYC/AML etc. 18 month Fixed Term Contract initially - Salary: £80,000 pa plus benefits - Full-Time; office based 4 days per week (West End of London) The ideal candidate will have a strong background in software development, system architecture, and project management and will be responsible for leading integration efforts. * Lead the integration stream for the core banking project, focusing on technical aspects. * Assist in the transition to new digital initiatives, ensuring a safe, secure, and risk-managed process.
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Strong knowledge of Django (or similar) and API design
Strong knowledge of Django (or similar) and API design
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Senior Security Engineer Defender PurView Sentinel
Senior Security Engineer Defender PurView Sentinel
Invitise Ltd
EC1A, City of London
Up to £500 per day Outside IR35
PowerShell scripting and use of Microsoft Graph API
PowerShell scripting and use of Microsoft Graph API
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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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22 exact matches jobs are outside your preferred location
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D365 Senior Developer - D365 Finance, APIS, Azure
D365 Senior Developer - D365 Finance, APIS, Azure
Hays
London
£500.0 - £515.0 per day + up to £515 pd (InsideIR35)
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * Experience in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * Experience in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
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D365 Senior Developer - D365 Finance, APIS, Azure
D365 Senior Developer - D365 Finance, APIS, Azure
Hays
London
£500.0 - £515.0 per day + up to £515 pd (InsideIR35)
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * 5+ years in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
Up to £515 per day (Inside IR35) Remote / must be UK based - 12 months - We're looking for an experienced D365 Finance & Operations Developer to lead the development of custom journal processing extensions. This role suits someone with strong X++ skills and a deep understanding of D365 Finance, especially in high-volume, cross-functional environments. * 5+ years in D365 F&O development (X++, data entities, extensions). * Experience with general ledger, journals, financial dimensions, and intercompany transactions. * Strong knowledge of Visual Studio, LCS, Azure DevOps, and CI/CD pipelines. * Proficient in Power BI: report creation, configuration, and export. * Skilled in workflows, security roles, SSRS, and unit testing (SysTest). * Familiar with DMF, OData, batch processing, and error handling. * Ability to optimize performance for high-volume transactions.
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Senior Full StackDeveloper Kotlin / Java / React (Hybrid, London) We're working with aninsurtech company thats redefining how consumers experience insurance in the digital age. Their mission is to simplify and personalise the insurance journey, leveraging modern technology, intuitive design, and deep industry insight to deliver standout experiences particularly in the automotive and mobility sectors. * Designing and developing backend services and REST APIs using Kotlin and Java * Building and integrating front-end interfaces using React.js, TypeScript & PostgreSQL * Creating and maintaining AWS Lambda functions and infrastructure using Terraform * Collaborating closely with product, design, and domain experts in a fast-moving, agile environment * Playing a key role in shaping architecture and tech strategy as the platform scales
Senior Full StackDeveloper Kotlin / Java / React (Hybrid, London) We're working with aninsurtech company thats redefining how consumers experience insurance in the digital age. Their mission is to simplify and personalise the insurance journey, leveraging modern technology, intuitive design, and deep industry insight to deliver standout experiences particularly in the automotive and mobility sectors. * Designing and developing backend services and REST APIs using Kotlin and Java * Building and integrating front-end interfaces using React.js, TypeScript & PostgreSQL * Creating and maintaining AWS Lambda functions and infrastructure using Terraform * Collaborating closely with product, design, and domain experts in a fast-moving, agile environment * Playing a key role in shaping architecture and tech strategy as the platform scales
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Developer, .NET, C#, AI Code, Remote, COR7355
Developer, .NET, C#, AI Code, Remote, COR7355
Corriculo Ltd
Oxford, Oxfordshire
£40k - 50k per year + Remote Working
A Developer with experience in .NET, C#, and JavaScript is urgently required to join a dynamic and innovative team in a leading organisation working on a fully remote basis. This is an excellent opportunity to contribute to technological developments, streamline processes, and enhance operational efficiency. The Role - As a Developer, you will work closely with the Senior Developer to design and implement internal tools and solutions. Collaborating with various departments, you’ll support development-related queries and build integrations with third-party platforms via APIs. This role is central to improving workflows, enabling innovative practices, and contributing to the company’s technology strategy. The Company - Our client is a forward-thinking organisation committed to technological advancement and efficiency.
A Developer with experience in .NET, C#, and JavaScript is urgently required to join a dynamic and innovative team in a leading organisation working on a fully remote basis. This is an excellent opportunity to contribute to technological developments, streamline processes, and enhance operational efficiency. The Role - As a Developer, you will work closely with the Senior Developer to design and implement internal tools and solutions. Collaborating with various departments, you’ll support development-related queries and build integrations with third-party platforms via APIs. This role is central to improving workflows, enabling innovative practices, and contributing to the company’s technology strategy. The Company - Our client is a forward-thinking organisation committed to technological advancement and efficiency.
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Strong experience with RESTful API integrations * Familiarity with authentication protocols (OAuth2, API keys)
Strong experience with RESTful API integrations * Familiarity with authentication protocols (OAuth2, API keys)
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Head of Engineering (Hands on)- London Hybrid
Head of Engineering (Hands on)- London Hybrid
Develop
London
£90000 - £120000 per annum + + benefits & stocks
Deliver front-end excellence: Build fast, responsive web apps using Vite, React Query, Context API, and CSS frameworks. * Design for scale: Lead on API design, performance optimisation, and secure, cloud-ready architectures.
Deliver front-end excellence: Build fast, responsive web apps using Vite, React Query, Context API, and CSS frameworks. * Design for scale: Lead on API design, performance optimisation, and secure, cloud-ready architectures.
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Advanced automation experience using PowerShell, Graph API, or Azure Automation for large-scale management and orchestration.
Advanced automation experience using PowerShell, Graph API, or Azure Automation for large-scale management and orchestration.
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Strong background in the analysis and design of offshore structures to ISO 1900 series, API RP2A, AISC, and DNV standards.
Strong background in the analysis and design of offshore structures to ISO 1900 series, API RP2A, AISC, and DNV standards.
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Solid understanding of backend architecture, distributed systems and API design.
Solid understanding of backend architecture, distributed systems and API design.
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£45,000 - £60,000 DOE - Hybrid - 3 days a week in St Albans - Looking for your next step in ERP, automation, and process improvement? This growing business is on a digital transformation journey and needs a hands-on Business Systems Developer to help make it happen. This role is all about owning and optimising Microsoft Dynamics 365 Business Central, cutting down manual work, driving automation, and making life easier across finance, operations, and reporting. There's plenty of room to grow here too, whether that's developing into a senior specialist role or stepping into leadership as the systems function expands. What you'll be doing * Owning and supporting Dynamics 365 Business Central (config, AL extensions, security, troubleshooting). * Spotting opportunities for automation and process improvement (think Power Automate, APIs, integrations).
£45,000 - £60,000 DOE - Hybrid - 3 days a week in St Albans - Looking for your next step in ERP, automation, and process improvement? This growing business is on a digital transformation journey and needs a hands-on Business Systems Developer to help make it happen. This role is all about owning and optimising Microsoft Dynamics 365 Business Central, cutting down manual work, driving automation, and making life easier across finance, operations, and reporting. There's plenty of room to grow here too, whether that's developing into a senior specialist role or stepping into leadership as the systems function expands. What you'll be doing * Owning and supporting Dynamics 365 Business Central (config, AL extensions, security, troubleshooting). * Spotting opportunities for automation and process improvement (think Power Automate, APIs, integrations).
NEWFEATURED
API testing tools (e.g., Postman, REST Assured).
API testing tools (e.g., Postman, REST Assured).
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Credit Risk Manager
Credit Risk Manager
Cornhill International Payments (T/A iBanFirst Limited)
London
£90,000 - £100,000 a year
Job Description - As the head of the credit risk team, the Head of Credit manages the credit risk function within the Risk Department. This leadership role requires a seasoned professional with a strong understanding of credit risk analysis, credit risk management, regulatory compliance, and strategic credit thinking. This role involves assessing the creditworthiness of counterparties, negotiating collateral terms in conjunction with the Sales team, monitoring credit risk indicators, exposures, and limits, and reviewing the credit quality of iBanFirst's portfolio exposure. Reporting directly to the CRO, the Credit Risk Manager manages a team of credit risk analysts. The main goal is to ensure iBanFirst's credit exposure is controlled and maintained within the risk appetite and in line with the credit strategy set by the Board. What you will do
Job Description - As the head of the credit risk team, the Head of Credit manages the credit risk function within the Risk Department. This leadership role requires a seasoned professional with a strong understanding of credit risk analysis, credit risk management, regulatory compliance, and strategic credit thinking. This role involves assessing the creditworthiness of counterparties, negotiating collateral terms in conjunction with the Sales team, monitoring credit risk indicators, exposures, and limits, and reviewing the credit quality of iBanFirst's portfolio exposure. Reporting directly to the CRO, the Credit Risk Manager manages a team of credit risk analysts. The main goal is to ensure iBanFirst's credit exposure is controlled and maintained within the risk appetite and in line with the credit strategy set by the Board. What you will do
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Company Description - Are you ready to trade your job for a journey? Become a FlyMate! Passion, excitement & global collaboration are all core to what it means to be a FlyMate. At Flywire, were on a mission to deliver the worlds most important and complex payments. We use our Flywire Advantage - the combination of our next-gen payments platform, proprietary payment network and vertical specific software, to help our clients get paid, and help their customers pay with ease - no matter where they are in the world. What more do we need to truly be unstoppable? Perhaps, that is you! Flywire is a global payments enablement and software company, founded a decade ago to solve high-stakes, high-value payments in education, using modern technology. Today, weve digitized payments for more than 3,300+ global clients across education, healthcare, travel & B2B, covering more than
Company Description - Are you ready to trade your job for a journey? Become a FlyMate! Passion, excitement & global collaboration are all core to what it means to be a FlyMate. At Flywire, were on a mission to deliver the worlds most important and complex payments. We use our Flywire Advantage - the combination of our next-gen payments platform, proprietary payment network and vertical specific software, to help our clients get paid, and help their customers pay with ease - no matter where they are in the world. What more do we need to truly be unstoppable? Perhaps, that is you! Flywire is a global payments enablement and software company, founded a decade ago to solve high-stakes, high-value payments in education, using modern technology. Today, weve digitized payments for more than 3,300+ global clients across education, healthcare, travel & B2B, covering more than
Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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Strong background in API development, cloud adoption frameworks, and modern architectures.
Strong background in API development, cloud adoption frameworks, and modern architectures.
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The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
The Hoddesdon site has state-of-the-art Good Manufacturing Practice (GMP) standard facilities for the development of Active Pharmaceutical Ingredients (API), Formulation Development (FD) and Process Chemistry (PC).
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