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2 Permanent API jobs in Southend-On-Sea + 10 miles
506 exact matches jobs are outside your preferred location
Enterprise ERP Developer £61,500 - £82,000 - Chelmsford (Hybrid) REED Technology are working with a client who are seeking a talented Enterprise ERP Developer. This role involves supporting and developing both existing and new ERP customisations and integrations. You will work with various ERP systems and enterprise applications, ensuring secure data exchanges between on-premises and cloud-based systems. * Develop and support integrations between ERP systems and other enterprise applications (CRM, HR, procurement, shipping, and logistics). * Identify and resolve system integration issues. * Implement automation, audit, logging, and monitoring solutions for integration systems. * Enhance or improve business processes via integration. * Design, develop, and test ERP customisations. * Assist with data migration and related projects. * Create, test, and maintain SQL/Oracl
Enterprise ERP Developer £61,500 - £82,000 - Chelmsford (Hybrid) REED Technology are working with a client who are seeking a talented Enterprise ERP Developer. This role involves supporting and developing both existing and new ERP customisations and integrations. You will work with various ERP systems and enterprise applications, ensuring secure data exchanges between on-premises and cloud-based systems. * Develop and support integrations between ERP systems and other enterprise applications (CRM, HR, procurement, shipping, and logistics). * Identify and resolve system integration issues. * Implement automation, audit, logging, and monitoring solutions for integration systems. * Enhance or improve business processes via integration. * Design, develop, and test ERP customisations. * Assist with data migration and related projects. * Create, test, and maintain SQL/Oracl
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Full Stack Web Developer
Full Stack Web Developer
Profile 29
IG10, Loughton
From £70,000 to £80,000 per annum + benefits (see advert)
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
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C# .Net Programme Manager, Finance, Hybrid, London WC2
C# .Net Programme Manager, Finance, Hybrid, London WC2
Langley James Limited
St James, WC2N 5HS
Up to £85000 per annum + bonus
With Strong technical proficiencies in the .NET stack, C#, Python, React, Angular, and SQL and experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway. Experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway.
With Strong technical proficiencies in the .NET stack, C#, Python, React, Angular, and SQL and experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway. Experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway.
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C# .Net Programme Manager, Finance, Hybrid, London WC2
C# .Net Programme Manager, Finance, Hybrid, London WC2
Langley James
St James, WC2N 5HS
Up to £85000 per annum + bonus
With Strong technical proficiencies in the .NET stack, C#, Python, React, Angular, and SQL and experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway. Experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway.
With Strong technical proficiencies in the .NET stack, C#, Python, React, Angular, and SQL and experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway. Experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway.
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Utilise RESTful interfaces and possess a strong understanding of API design.
Utilise RESTful interfaces and possess a strong understanding of API design.
FEATUREDNEW
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Stats Perform is the market leader in sports tech. We provide the richest and most trusted sports data available and are at the forefront of the latest advancements in AI and machine learning to turn this data into something magic. We entwine our extensive back-catalogue of data in with innovative products and machine-learning to deliver insights, predictions, and super-fast data for a variety of sporting organisations worldwide, plus the biggest names in media and broadcast. We partner with top-flight teams, leagues, coaches, betting companies, broadcasters, media outlets, gaming specialists and professional bodies to improve the overall experience for sports fans. We constantly collect the most detailed sports data to enhance a wide range of sports competitions, from tennis to soccer to basketball and more. Stats Perform is the knowledge bank behind it all.
Stats Perform is the market leader in sports tech. We provide the richest and most trusted sports data available and are at the forefront of the latest advancements in AI and machine learning to turn this data into something magic. We entwine our extensive back-catalogue of data in with innovative products and machine-learning to deliver insights, predictions, and super-fast data for a variety of sporting organisations worldwide, plus the biggest names in media and broadcast. We partner with top-flight teams, leagues, coaches, betting companies, broadcasters, media outlets, gaming specialists and professional bodies to improve the overall experience for sports fans. We constantly collect the most detailed sports data to enhance a wide range of sports competitions, from tennis to soccer to basketball and more. Stats Perform is the knowledge bank behind it all.
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Software Development Engineer In Test
Software Development Engineer In Test
FULLSTACK RECRUITMENT LIMITED
EC1N, City of London
Up to £120,000 per annum
Design, develop, and maintain robust, scalable automated test frameworks (UI, API, and integration)
Design, develop, and maintain robust, scalable automated test frameworks (UI, API, and integration)
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£45,000 - 55,000 GBP - Hybrid WORKING - Location: United Kingdom (Greater London) Type: Permanent - Location: London (Hybrid) Salary: £45,000 - £55,000 - Our client is a tier 1 Consultancy firm specialising in strategic development, digital transformation, and product innovation. The company combines innovative thinking and breakthrough technologies to achieve enduring results for their clients and is looking to add an experienced Java Engineer to their talented and growing team * Design and implement robust and scalable Java solutions including functional interfaces, streams, and collections * Optimise performance through parallel runs and resource sharing, demonstrating a deep understanding of multi-threading concepts * Utilise MVC frameworks to design and develop web applications * Design RESTful APIs using JAX-RS adhering to best practices
£45,000 - 55,000 GBP - Hybrid WORKING - Location: United Kingdom (Greater London) Type: Permanent - Location: London (Hybrid) Salary: £45,000 - £55,000 - Our client is a tier 1 Consultancy firm specialising in strategic development, digital transformation, and product innovation. The company combines innovative thinking and breakthrough technologies to achieve enduring results for their clients and is looking to add an experienced Java Engineer to their talented and growing team * Design and implement robust and scalable Java solutions including functional interfaces, streams, and collections * Optimise performance through parallel runs and resource sharing, demonstrating a deep understanding of multi-threading concepts * Utilise MVC frameworks to design and develop web applications * Design RESTful APIs using JAX-RS adhering to best practices
PREMIUM
Technical Programme Manager - .NET, C# - Hybrid, London WC2
Technical Programme Manager - .NET, C# - Hybrid, London WC2
Langley James Limited
St James, WC2N 5HS
Up to £85000 per annum + bonus
With Strong technical proficiencies in the .NET stack, C#, Python, React, Angular, and SQL and experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway. Experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway.
With Strong technical proficiencies in the .NET stack, C#, Python, React, Angular, and SQL and experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway. Experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway.
Join a pioneering fintech startup on a mission to reshape how crypto is used in everyday payments. Backed by a strategic partnership with Tellers, this is one of the few companies bringing real-world utility to Web3 – and they’re looking for a Full-Stack Developer to play a key role in the journey. You’ll be building a high-impact crypto payments platform from the ground up — working with wallets, APIs, and blockchain networks to deliver a seamless web-based product experience. • 5+ years of hands-on JavaScript development (full-stack) • Strong backend development experience with PHP, Java, Node.js (or similar web stack) • Proven experience working with blockchain infrastructure • Familiar with implementing crypto wallets (Cestode and non-Cestode) • Experience integrating third-party APIs and service providers • Solid understanding of how blockchain networks operate
Join a pioneering fintech startup on a mission to reshape how crypto is used in everyday payments. Backed by a strategic partnership with Tellers, this is one of the few companies bringing real-world utility to Web3 – and they’re looking for a Full-Stack Developer to play a key role in the journey. You’ll be building a high-impact crypto payments platform from the ground up — working with wallets, APIs, and blockchain networks to deliver a seamless web-based product experience. • 5+ years of hands-on JavaScript development (full-stack) • Strong backend development experience with PHP, Java, Node.js (or similar web stack) • Proven experience working with blockchain infrastructure • Familiar with implementing crypto wallets (Cestode and non-Cestode) • Experience integrating third-party APIs and service providers • Solid understanding of how blockchain networks operate
FEATUREDNEW
Technical Programme Manager - .NET, C# - Hybrid, London WC2
Technical Programme Manager - .NET, C# - Hybrid, London WC2
Langley James
St James, WC2N 5HS
Up to £85000 per annum + bonus
With Strong technical proficiencies in the .NET stack, C#, Python, React, Angular, and SQL and experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway. Experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway.
With Strong technical proficiencies in the .NET stack, C#, Python, React, Angular, and SQL and experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway. Experience with CI/CD pipelines, GitHub projects, GitHub Enterprise Server, Azure DevOps, container technologies (Docker, Kubernetes etc.), and API gateway.
Junior .NET Developer
Junior .NET Developer
Lime Street Recruitment LTD
EC3, City of London
From £30,000 to £40,000 per annum
We are looking for an enthusiastic .NET (C#)/Blazor developer to work on a variety of projects, including AI and price modelling. We have a team of around 16 developers across various disciplines in London with more developers in the US. Based in the heart of the City of London, we produce applications for both our internal and external users. We are not looking necessarily for years of commercial experience. You will need some .NET experience, and we will want to see examples of work you have already done. However enthusiasm and commitment are far more important to us. We will invest heavily in the right person. We are working on a number of applications that call out to the Azure AI services. We also integrate with external market systems and external datasets. We expect to keep investing heavily in AI and you would be at the forefront of this development.
We are looking for an enthusiastic .NET (C#)/Blazor developer to work on a variety of projects, including AI and price modelling. We have a team of around 16 developers across various disciplines in London with more developers in the US. Based in the heart of the City of London, we produce applications for both our internal and external users. We are not looking necessarily for years of commercial experience. You will need some .NET experience, and we will want to see examples of work you have already done. However enthusiasm and commitment are far more important to us. We will invest heavily in the right person. We are working on a number of applications that call out to the Azure AI services. We also integrate with external market systems and external datasets. We expect to keep investing heavily in AI and you would be at the forefront of this development.
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Functional Consultant - D365 Field Service
Functional Consultant - D365 Field Service
Kinetech Recruitment
EC1V, City of London, EC1V 2NX
Up to £60,000 per annum + Bonus + Benefits
Functional Consultant Microsoft Dynamics 365 Field Service & CE - Fully Remote (UK-based) Salary up to £60,000 + bonus - An ambitious early-stage business is looking for a Functional Consultant for Dynamics 365 Field Service and other CE modules (Customer Service / Sales) a critical tool for the business. The Role - As Functional Consultant, you will take full ownership of Microsoft Dynamics Field Service product, acting as the vital link between business operations and technical solutions. You will manage change requests, and oversee the integration of acquired businesses into the group platform. Key Responsibilities * Help to define Product Strategy:Shape the vision and roadmap for the Dynamics 365 Field Service to support business growth. * Collaborate with Stakeholders:Gather, prioritise, and translate business needs into detailed plans.
Functional Consultant Microsoft Dynamics 365 Field Service & CE - Fully Remote (UK-based) Salary up to £60,000 + bonus - An ambitious early-stage business is looking for a Functional Consultant for Dynamics 365 Field Service and other CE modules (Customer Service / Sales) a critical tool for the business. The Role - As Functional Consultant, you will take full ownership of Microsoft Dynamics Field Service product, acting as the vital link between business operations and technical solutions. You will manage change requests, and oversee the integration of acquired businesses into the group platform. Key Responsibilities * Help to define Product Strategy:Shape the vision and roadmap for the Dynamics 365 Field Service to support business growth. * Collaborate with Stakeholders:Gather, prioritise, and translate business needs into detailed plans.
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Senior .Net Developer
Senior .Net Developer
Halian Technology Limited
W1, Central London
From £70,000 to £75,000 per annum Plus benefits
We are seeking a highly skilled Senior .NET Developer to join my clients growing technology team. This role requires strong expertise in .NET development, deep knowledge of SQL and database management, and a solid understanding of software architecture and solution design. Experience in the payments and e-card industry is highly desirable. You will get the opportunity to work with global and worldwide brands such as Google, Sony and Visa to name of the many organisations. Key Responsibilities * Design, develop, and maintain scalable and robust .NET applications. Lead the implementation of technical solutions aligned with business goals. * Optimize and manage complex SQL databases and ensure data integrity and performance. * Collaborate with cross-functional teams including Product, QA, and DevOps.
We are seeking a highly skilled Senior .NET Developer to join my clients growing technology team. This role requires strong expertise in .NET development, deep knowledge of SQL and database management, and a solid understanding of software architecture and solution design. Experience in the payments and e-card industry is highly desirable. You will get the opportunity to work with global and worldwide brands such as Google, Sony and Visa to name of the many organisations. Key Responsibilities * Design, develop, and maintain scalable and robust .NET applications. Lead the implementation of technical solutions aligned with business goals. * Optimize and manage complex SQL databases and ensure data integrity and performance. * Collaborate with cross-functional teams including Product, QA, and DevOps.
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You will bring with you prior experience of developing Web API based applications written in .NET Framework or .NET Core, working in medium sized development teams utilizing features such as Azure web apps, SQL PaaS databases, blob storage, service bus, and other Azure services.
You will bring with you prior experience of developing Web API based applications written in .NET Framework or .NET Core, working in medium sized development teams utilizing features such as Azure web apps, SQL PaaS databases, blob storage, service bus, and other Azure services.
API and Integration proficiency
API and Integration proficiency
PREMIUM
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Full Stack Software Developer ASP.NET C# jQuery HTML5 SQL - The ideal candidatewill be responsible for building and maintaining internal and external facing web applications. You will be working in a team of experienced developers to build highly performing systems that improve efficiency. Teams use Agile Methodology and follow Scrum and Kanban Frameworks. *ASP.NET C# jQuery HTML5 SQL Azure GIT - Job requirements - Role Responsibilities * Maintain existing products and provide resolutions to Escalated Support Calls within the agreed SLAs * Require testing developments from end to end before passed to Acceptance Testing * Ability to adapt quickly to an existing, complex environment * Evaluate, redesign and modify existing program logic to quickly and efficiently meet and exceed customer needs, by integrating new requirements and by applying proven development paths
Full Stack Software Developer ASP.NET C# jQuery HTML5 SQL - The ideal candidatewill be responsible for building and maintaining internal and external facing web applications. You will be working in a team of experienced developers to build highly performing systems that improve efficiency. Teams use Agile Methodology and follow Scrum and Kanban Frameworks. *ASP.NET C# jQuery HTML5 SQL Azure GIT - Job requirements - Role Responsibilities * Maintain existing products and provide resolutions to Escalated Support Calls within the agreed SLAs * Require testing developments from end to end before passed to Acceptance Testing * Ability to adapt quickly to an existing, complex environment * Evaluate, redesign and modify existing program logic to quickly and efficiently meet and exceed customer needs, by integrating new requirements and by applying proven development paths
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Preferably Cloud based solutions withWeb, API n Mobile testing.
Preferably Cloud based solutions withWeb, API n Mobile testing.
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Drive the development of cloud-native applications, with a strong focus on modern JavaScript frameworks and API/microservices architecture. * Strong background in JavaScript frameworks, microservices, and API development.
Drive the development of cloud-native applications, with a strong focus on modern JavaScript frameworks and API/microservices architecture. * Strong background in JavaScript frameworks, microservices, and API development.
FEATURED
* 6+ years of hands-on development experience with 5G SBA network functions (e.g., AMF, SMF, NRF, PCF, UDM) * Strong programming skills in languages such as Go, Java, or C++ * Proficient in building microservices and working with REST/gRPC APIs * Experience in Docker and Kubernetes in deploying services over public or private clouds * Solid understanding of 3GPP specs (especially TS 23.501, 23.502, 29.500+ series
* 6+ years of hands-on development experience with 5G SBA network functions (e.g., AMF, SMF, NRF, PCF, UDM) * Strong programming skills in languages such as Go, Java, or C++ * Proficient in building microservices and working with REST/gRPC APIs * Experience in Docker and Kubernetes in deploying services over public or private clouds * Solid understanding of 3GPP specs (especially TS 23.501, 23.502, 29.500+ series
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Next.JS Software Engineer - Remote
Next.JS Software Engineer - Remote
Exposed Solutions
W1B, West London
From £60,000 to £80,000 per annum
Experience with API design and development, including RESTful services.
Experience with API design and development, including RESTful services.
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* 6+ years of hands-on development experience with 5G SBA network functions (e.g., AMF, SMF, NRF, PCF, UDM) * Strong programming skills in languages such as Go, Java, or C++ * Proficient in building microservices and working with REST/gRPC APIs * Experience in Docker and Kubernetes in deploying services over public or private clouds * Solid understanding of 3GPP specs (especially TS 23.501, 23.502, 29.500+ series
* 6+ years of hands-on development experience with 5G SBA network functions (e.g., AMF, SMF, NRF, PCF, UDM) * Strong programming skills in languages such as Go, Java, or C++ * Proficient in building microservices and working with REST/gRPC APIs * Experience in Docker and Kubernetes in deploying services over public or private clouds * Solid understanding of 3GPP specs (especially TS 23.501, 23.502, 29.500+ series
Senior Product Owner - FX
Senior Product Owner - FX
Halian Technology Limited
W1, Central London
From £80,000 to £95,000 per annum
My client is seeking a Senior Product Owner with deep FX experience to own and drive the development of our FX and treasury-related products. You will work across cross-functional teams to shape our product strategy, with a focus on FX-as-a-Service, liquidity integration, deposit innovation (including zero-deposit solutions), forwards, and hedging products. This role demands a blend of strategic thinking, market understanding, and hands-on delivery skills. You'll be working closely with engineering, sales, operations, and external partners to deliver high-impact solutions that meet customer needs and strengthen our market position. Key Responsibilities * Own the end-to-end product lifecycle for FX and treasury products, from ideation to delivery and ongoing optimization. o FX-as-a-Service capabilities - o Integrated liquidity partnerships (e.g., with Tier 1 providers,
My client is seeking a Senior Product Owner with deep FX experience to own and drive the development of our FX and treasury-related products. You will work across cross-functional teams to shape our product strategy, with a focus on FX-as-a-Service, liquidity integration, deposit innovation (including zero-deposit solutions), forwards, and hedging products. This role demands a blend of strategic thinking, market understanding, and hands-on delivery skills. You'll be working closely with engineering, sales, operations, and external partners to deliver high-impact solutions that meet customer needs and strengthen our market position. Key Responsibilities * Own the end-to-end product lifecycle for FX and treasury products, from ideation to delivery and ongoing optimization. o FX-as-a-Service capabilities - o Integrated liquidity partnerships (e.g., with Tier 1 providers,
NEW
Senior Full Stack Web Developer
Senior Full Stack Web Developer
Profile 29
IG10, Loughton
From £90,000 to £120,000 per annum + benefits (see advert)
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
As a member of their team, you will have the opportunity to work on their public-facing API and back-office websites in a Test-Driven Agile environment.
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Security DevOps Engineer - Tunbridge Wells
Security DevOps Engineer - Tunbridge Wells
GMA Consulting
TN1, Tunbridge Wells
£80,000-£85,000K base + Bonus + benefits
· Exposure to Cloud Native software development, including cloud infrastructure and API design (Azure preferred)
· Exposure to Cloud Native software development, including cloud infrastructure and API design (Azure preferred)