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21 API jobs in Cardiff Business Park + 20 miles
156 exact matches jobs are outside your preferred location
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Experience with data migration, ETL processes, and API integrations.
Experience with data migration, ETL processes, and API integrations.
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Software Engineer with AI Integration
Software Engineer with AI Integration
Alexander Mae (Bristol) Ltd
BS1, Bristol
From £30,000 to £35,000 per annum
Integrate external AI services (e.g., OpenAI API) into prototypes and production features.
Integrate external AI services (e.g., OpenAI API) into prototypes and production features.
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Technical experience in areas suchas Azure, .NET frameworks, API integrations, MS SQL Server and SSRS.
Technical experience in areas suchas Azure, .NET frameworks, API integrations, MS SQL Server and SSRS.
NEWFEATURED
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Senior Software Engineer (PHP, Typescript) - Trading
Senior Software Engineer (PHP, Typescript) - Trading
Hargreaves Lansdown
BS1, Bristol
£60000 - £80000 per annum + Pension, Bonus etc
Principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. * Third party API services integration experience.
Principles of RESTful API development, including structuring, documenting, versioning, testing and stubbing/mocking. * Third party API services integration experience.
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DevOps Engineer
DevOps Engineer
Newton Blue
BS1, Bristol
Up to £60,000 per annum dependent on experience plus excellent benefit
Rest API's and/or WCF services, working with JSON and SOAP
Rest API's and/or WCF services, working with JSON and SOAP
Technical Services Consultant
Technical Services Consultant
Newton Blue
BS1, Bristol
Up to £60,000 per annum dependent on experience plus excellent benefit
Rest API's and/or WCF services, working with JSON and SOAP
Rest API's and/or WCF services, working with JSON and SOAP
Technical experience in areas such as Azure, .NET frameworks, API integrations, MS SQL Server and SSRS.
Technical experience in areas such as Azure, .NET frameworks, API integrations, MS SQL Server and SSRS.
NEWFEATURED
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Experience working with AWS (eg VPC, RDS, API Gateway, SES, Route53)
Experience working with AWS (eg VPC, RDS, API Gateway, SES, Route53)
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Lead Data Architect
Lead Data Architect
Anson Mccade
BS1, Bristol, BS1 6GD
GBP 67,000.00 - 76,000.00 per year;GBP 67,000.00 per year;GBP 76,000.0
£67,000 - 76,000 GBP - Hybrid WORKING - Location: Bristol, South West - United Kingdom Type: Permanent - Locations: Leeds, Manchester, Birmingham, Bristol, Glasgow, or London (Hybrid - up to 2 days on-site per week, remainder remote) Salary: £67,000 - £76,000 (non-London) / Up to £83,000 (London) + Benefits - A respected digital consultancy is hiring a Lead Data Architect to join its growing Data Engineering practice. Known for delivering modern, human-centred services across public and private sectors, this organisation supports clients through meaningful transformation by combining data, design, and engineering. This role is ideal for experienced architects who enjoy shaping cloud-native data platforms, working in multidisciplinary teams, and embedding data governance and architectural rigour across complex service ecosystems.
£67,000 - 76,000 GBP - Hybrid WORKING - Location: Bristol, South West - United Kingdom Type: Permanent - Locations: Leeds, Manchester, Birmingham, Bristol, Glasgow, or London (Hybrid - up to 2 days on-site per week, remainder remote) Salary: £67,000 - £76,000 (non-London) / Up to £83,000 (London) + Benefits - A respected digital consultancy is hiring a Lead Data Architect to join its growing Data Engineering practice. Known for delivering modern, human-centred services across public and private sectors, this organisation supports clients through meaningful transformation by combining data, design, and engineering. This role is ideal for experienced architects who enjoy shaping cloud-native data platforms, working in multidisciplinary teams, and embedding data governance and architectural rigour across complex service ecosystems.
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Backend engineer
Backend engineer
LA International Computer Consultants Ltd
SN13, Corsham
£500 - £600 per day + price in
Architect and implement backend services that support secure, air-gapped AI - deployments, with a focus on NLP-based tooling * Develop pipelines for transcription ingestion and real-time analytical insight - generation * Support graph and RAG-based inference layers using data from structured and - unstructured sources * Build and expose APIs for frontend consumption, enabling natural-language - querying, dynamic visualisation, and reporting * Ensure system portability via containerisation * Collaborate closely with data scientists to integrate self-hosted LLMs and - analysis models into the backend infrastructure * Work with platform engineers to tune deployments for hardware-limited - environments - What You Bring * Strong experience building secure, scalable backend systems in Python and/or - Go * Deep understanding of containerised services, particularly in Kuberne
Architect and implement backend services that support secure, air-gapped AI - deployments, with a focus on NLP-based tooling * Develop pipelines for transcription ingestion and real-time analytical insight - generation * Support graph and RAG-based inference layers using data from structured and - unstructured sources * Build and expose APIs for frontend consumption, enabling natural-language - querying, dynamic visualisation, and reporting * Ensure system portability via containerisation * Collaborate closely with data scientists to integrate self-hosted LLMs and - analysis models into the backend infrastructure * Work with platform engineers to tune deployments for hardware-limited - environments - What You Bring * Strong experience building secure, scalable backend systems in Python and/or - Go * Deep understanding of containerised services, particularly in Kuberne
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Description - Continuing Defleet's data led journey and recognising the importance the Data & Analytics team performs in this regard, we are looking for a skilled Lead Data Engineer who is passionate about exploiting data and searching for improvements in our existing processes and technology; can work closely with business teams; drives solutions with a focused mentality on business value and can lead, influence and drive collaboration across teams and stakeholders. It will focus on expanding the existing mission critical ecosystem of Data and BI systems for analytics and decision making, using Primarily Data Warehouse/Mart, Data Lake, Self Service BI Tools and Data Science/ML platform using Oracle, Snowflake and AWS tech stack. Qualifications * Self-starter with initiative and enthusiasm * Thrives at solving problems with minimal or no direction and developing their
Description - Continuing Defleet's data led journey and recognising the importance the Data & Analytics team performs in this regard, we are looking for a skilled Lead Data Engineer who is passionate about exploiting data and searching for improvements in our existing processes and technology; can work closely with business teams; drives solutions with a focused mentality on business value and can lead, influence and drive collaboration across teams and stakeholders. It will focus on expanding the existing mission critical ecosystem of Data and BI systems for analytics and decision making, using Primarily Data Warehouse/Mart, Data Lake, Self Service BI Tools and Data Science/ML platform using Oracle, Snowflake and AWS tech stack. Qualifications * Self-starter with initiative and enthusiasm * Thrives at solving problems with minimal or no direction and developing their
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Are you an experienced Salesforce Architect, looking to take on a challenging role, at a global, 500+ staff strong UK based Software product company? You’ll be keen to take on a key role within the Data Ops team & own all things Salesforce related, across the technical, data & stakeholder management piece. Working across the business in this highly visible role, not only is Salesforce used extensively, internally, but they are also major Salesforce partners & are embedded into the Salesforce Ecosystem. Mainly, you should be a technical expert in Salesforce but also have the functional soft skills to make sure that the architecture & business requirements are effectively translated into reality. Role title: Salesforce Architect. Senior Salesforce Developer. Location: Central London – but largely irrelevant as this role is 98% remote.
Are you an experienced Salesforce Architect, looking to take on a challenging role, at a global, 500+ staff strong UK based Software product company? You’ll be keen to take on a key role within the Data Ops team & own all things Salesforce related, across the technical, data & stakeholder management piece. Working across the business in this highly visible role, not only is Salesforce used extensively, internally, but they are also major Salesforce partners & are embedded into the Salesforce Ecosystem. Mainly, you should be a technical expert in Salesforce but also have the functional soft skills to make sure that the architecture & business requirements are effectively translated into reality. Role title: Salesforce Architect. Senior Salesforce Developer. Location: Central London – but largely irrelevant as this role is 98% remote.
NEWFEATURED
Senior Software Engineer (Pensions, ISAs & Investments)
Senior Software Engineer (Pensions, ISAs & Investments)
Hargreaves Lansdown
BS1, Bristol
£65000 - £80000 per annum + Strong Bonus & Pension etc
Salary: Up to £80,000 dependent on experience - HL are looking for a talented full stack Senior Software Engineer to join our Pensions, ISAs & Investments product development team in building market leading solutions for our clients. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on behalf of more than 1.86 million UK investors. This is your chance to genuinely stamp your mark on one of the UK's most innovative and digital-focused businesses. What You'll Be Doing * Collaborate with cross-functional teams to deliver high-quality digital client journeys. * Design and develop AWS cloud-native applications with TypeScript and React and manage them using Infrastructure as Code. * Write high quality, secure, tested and performant code. * Create and maintain automated tests for new changes.
Salary: Up to £80,000 dependent on experience - HL are looking for a talented full stack Senior Software Engineer to join our Pensions, ISAs & Investments product development team in building market leading solutions for our clients. This is an opportunity to join the UK's number one investment services company, looking after over £149.7bn billion in assets on behalf of more than 1.86 million UK investors. This is your chance to genuinely stamp your mark on one of the UK's most innovative and digital-focused businesses. What You'll Be Doing * Collaborate with cross-functional teams to deliver high-quality digital client journeys. * Design and develop AWS cloud-native applications with TypeScript and React and manage them using Infrastructure as Code. * Write high quality, secure, tested and performant code. * Create and maintain automated tests for new changes.
NEWFEATURED
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We’re working with a hi-tech veteran owned simulation/ data-analytics company which services the defence and security market. They are looking to expand their in-house software engineering capability with the addition of a Full Stack Software Developer. This is a Full Stack role, but the client is open to Front End Developers, looking to develop back end skills, or back end devs interested in learning some front end. This is a great opportunity to work on secure & high-impact defence systems. This is a junior to mid-level role that would suite developers with ideally 2-5 years’ experience, please still apply if your experience levels fall’s outside this. * Developing full-stack solutions for secure defence applications * Working closely with software engineers, PMs, and security stakeholders * Building reusable, testable and scalable code with high quality and perform
We’re working with a hi-tech veteran owned simulation/ data-analytics company which services the defence and security market. They are looking to expand their in-house software engineering capability with the addition of a Full Stack Software Developer. This is a Full Stack role, but the client is open to Front End Developers, looking to develop back end skills, or back end devs interested in learning some front end. This is a great opportunity to work on secure & high-impact defence systems. This is a junior to mid-level role that would suite developers with ideally 2-5 years’ experience, please still apply if your experience levels fall’s outside this. * Developing full-stack solutions for secure defence applications * Working closely with software engineers, PMs, and security stakeholders * Building reusable, testable and scalable code with high quality and perform
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Robert Half are working with a global manufacturing business in the Ross-on-Wye / Coleford area. My client is looking to hire a couple of Software Developers as part of the move towards in-sourcing their application and web development functionality. * Responsible for designing, developing, and maintaining dynamic, scalable, and secure full-stack web applications. * Working across the entire software development lifecycle, collaborate closely with cross-functional teams to deliver robust digital solutions. * Design and develop interactive user interfaces using HTML, CSS, and JavaScript. * Leverage JavaScript to build complex web applications. * Integrate front-end components with back-end APIs to retrieve and display data. * Build server-side logic * Develop RESTful APIs to facilitate communication between the front-end and back-end.
Robert Half are working with a global manufacturing business in the Ross-on-Wye / Coleford area. My client is looking to hire a couple of Software Developers as part of the move towards in-sourcing their application and web development functionality. * Responsible for designing, developing, and maintaining dynamic, scalable, and secure full-stack web applications. * Working across the entire software development lifecycle, collaborate closely with cross-functional teams to deliver robust digital solutions. * Design and develop interactive user interfaces using HTML, CSS, and JavaScript. * Leverage JavaScript to build complex web applications. * Integrate front-end components with back-end APIs to retrieve and display data. * Build server-side logic * Develop RESTful APIs to facilitate communication between the front-end and back-end.
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C# .Net Software Developer?? Swansea (Hybrid Working)?? Competitive salary + excellent benefits - Join a forward-thinking technology team developing software that safeguards people working in high-risk industries. You'll contribute across the entire product lifecycle, from concept and design to implementation and support. Your expertise will help enhance critical control of work applications used globally, playing a vital role in safety and efficiency. * Strong programming experience with C# using .NET Core and .NET Framework * Proficiency in Knockout.JS, TypeScript, and JavaScript * Skilled in TSQL, LINQ, AJAX, RESTful APIs, and WebAPI development * Solid front-end development with HTML5, CSS3, and LESS * Familiarity with SQL Management Studio and Visual Studio * Mobile app development skills in Dart/Flutter are a bonus * Ability to manage the full software developme
C# .Net Software Developer?? Swansea (Hybrid Working)?? Competitive salary + excellent benefits - Join a forward-thinking technology team developing software that safeguards people working in high-risk industries. You'll contribute across the entire product lifecycle, from concept and design to implementation and support. Your expertise will help enhance critical control of work applications used globally, playing a vital role in safety and efficiency. * Strong programming experience with C# using .NET Core and .NET Framework * Proficiency in Knockout.JS, TypeScript, and JavaScript * Skilled in TSQL, LINQ, AJAX, RESTful APIs, and WebAPI development * Solid front-end development with HTML5, CSS3, and LESS * Familiarity with SQL Management Studio and Visual Studio * Mobile app development skills in Dart/Flutter are a bonus * Ability to manage the full software developme
Strong integration, E2E and API testing experience
Strong integration, E2E and API testing experience
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Responsible for backend architecture, API design, and integration strategy.
Responsible for backend architecture, API design, and integration strategy.
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Passion for clean code, API design, and maintainable architecture - Senior Software Engineer, Robotics, C++, Python, ROS 2, DDS, CUDA, PyTorch, TensorRT, Real-Time Systems, Embedded Systems, Low Latency, CI/CD, API Design, Linux Kernel, Multithreading, GPU Optimisation, Robotics Engineer, Autonomous Systems, London Engineering Jobs, Robotics Startups, High Performance Computing
Passion for clean code, API design, and maintainable architecture - Senior Software Engineer, Robotics, C++, Python, ROS 2, DDS, CUDA, PyTorch, TensorRT, Real-Time Systems, Embedded Systems, Low Latency, CI/CD, API Design, Linux Kernel, Multithreading, GPU Optimisation, Robotics Engineer, Autonomous Systems, London Engineering Jobs, Robotics Startups, High Performance Computing
NEWFEATURED
Strong understanding of REST/SOAP APIs, JSON/XML, authentication mechanisms (OAuth 2.0, API keys), and data transformation logic. * Excellent knowledge of API orchestration , asynchronous messaging, and middleware performance optimization. * Knowledge of Azure Integration Services : Logic Apps, API Management, Data Factory.
Strong understanding of REST/SOAP APIs, JSON/XML, authentication mechanisms (OAuth 2.0, API keys), and data transformation logic. * Excellent knowledge of API orchestration , asynchronous messaging, and middleware performance optimization. * Knowledge of Azure Integration Services : Logic Apps, API Management, Data Factory.
AWS Services; ECS, ECR, API Gateway, ELB, EC2, SSM, S3, Cloud Watch and Document DB
AWS Services; ECS, ECR, API Gateway, ELB, EC2, SSM, S3, Cloud Watch and Document DB
Experience working on a variety of web solution types (MVC, SPA, WebForms, SSR, API-Centric, Micro Services) and web application types (e-commerce, rich internet apps, membership portals, content managed web apps)
Experience working on a variety of web solution types (MVC, SPA, WebForms, SSR, API-Centric, Micro Services) and web application types (e-commerce, rich internet apps, membership portals, content managed web apps)
Develop efficient data access patterns within our Python API to support application performance and scalability * Experience with event-driven design patterns and frontend state management (Redux, Context API)
Develop efficient data access patterns within our Python API to support application performance and scalability * Experience with event-driven design patterns and frontend state management (Redux, Context API)
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About The Role - Purpose - Reporting to the Head of Data Insight & Analytics, this role will support with the development and progression of 7IMs business intelligence and insight capability. Sitting within the Data & Analytics team, this role will directly support 7IMs Transformation function through building dashboards, insight tools and supporting key stakeholders, including the Chief Transformation Officer and the Transformation Leadership Group, with data-driven decision making. The role would suit an ambitious and driven junior individual who is looking for an opportunity to advance their understanding of data, working closely with business leaders to generate meaningful insight. Responsibilities * Over time, act as the subject matter expert (SME) for data analytics to 7IMs Transformation function.
About The Role - Purpose - Reporting to the Head of Data Insight & Analytics, this role will support with the development and progression of 7IMs business intelligence and insight capability. Sitting within the Data & Analytics team, this role will directly support 7IMs Transformation function through building dashboards, insight tools and supporting key stakeholders, including the Chief Transformation Officer and the Transformation Leadership Group, with data-driven decision making. The role would suit an ambitious and driven junior individual who is looking for an opportunity to advance their understanding of data, working closely with business leaders to generate meaningful insight. Responsibilities * Over time, act as the subject matter expert (SME) for data analytics to 7IMs Transformation function.
Description - Were building the next UK-headquartered engineering powerhouse. Android | Kotlin | ML - Our software team is growing! Were looking for a motivated and talented Senior Android Developer to help solve interesting, real-world problems for our customers. You will be an integral part of our development team, solving challenging technical problems and owning the development of key features on a variety of projects including ATAK plugins, AI integrated apps, and network configuration tools. Youll also contribute to a hands-on engineering culture, sharing knowledge and lessons with the wider engineering team, and learn some new things yourself along the way. Key Areas of Responsibility * Designing, developing, and maintaining Android applications using Kotlin. * Leading technical design discussions and contributing to architectural decisions.
Description - Were building the next UK-headquartered engineering powerhouse. Android | Kotlin | ML - Our software team is growing! Were looking for a motivated and talented Senior Android Developer to help solve interesting, real-world problems for our customers. You will be an integral part of our development team, solving challenging technical problems and owning the development of key features on a variety of projects including ATAK plugins, AI integrated apps, and network configuration tools. Youll also contribute to a hands-on engineering culture, sharing knowledge and lessons with the wider engineering team, and learn some new things yourself along the way. Key Areas of Responsibility * Designing, developing, and maintaining Android applications using Kotlin. * Leading technical design discussions and contributing to architectural decisions.