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9 API jobs in Belfast + 10 miles

It's fun to work in a company where people truly BELIEVE in what they're doing! We're committed to bringing passion and customer focus to the business. Corporate Overview - Proofpoint is a leading cybersecurity company protecting organizations greatest assets and biggest risks: vulnerabilities in people. With an integrated suite of cloud-based solutions, Proofpoint helps companies around the world stop targeted threats, safeguard their data, and make their users more resilient against cyber-attacks. Leading organizations of all sizes, including more than half of the Fortune 1000, rely on Proofpoint for people-centric security and compliance solutions mitigating their most critical risks across email, the cloud, social media, and the web. We are singularly devoted to helping our customers protect their greatest assets and biggest security risk: their people.
It's fun to work in a company where people truly BELIEVE in what they're doing! We're committed to bringing passion and customer focus to the business. Corporate Overview - Proofpoint is a leading cybersecurity company protecting organizations greatest assets and biggest risks: vulnerabilities in people. With an integrated suite of cloud-based solutions, Proofpoint helps companies around the world stop targeted threats, safeguard their data, and make their users more resilient against cyber-attacks. Leading organizations of all sizes, including more than half of the Fortune 1000, rely on Proofpoint for people-centric security and compliance solutions mitigating their most critical risks across email, the cloud, social media, and the web. We are singularly devoted to helping our customers protect their greatest assets and biggest security risk: their people.
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At Apex Fintech Solution, we're all about building the next-generation trade clearing platform that enables the hottest stock trading apps the capabilities they need to introduce a new generation to investing. We need passionate, determined, courageous, and principled software engineers like you to help us achieve this mission. If what you need next in your career is an opportunity to be empowered to make your own decisions, learn from your mistakes and execute what works, Apex FinTech Solutions, a PEAK6 Group company, is likely the place for you. We are expanding our talented teams and excited to be creating a new centre of excellence in Belfast. We are building teams that are fully functional with leadership, back- and front-end development, data engineering, product management and testing, located in Northern Ireland.
At Apex Fintech Solution, we're all about building the next-generation trade clearing platform that enables the hottest stock trading apps the capabilities they need to introduce a new generation to investing. We need passionate, determined, courageous, and principled software engineers like you to help us achieve this mission. If what you need next in your career is an opportunity to be empowered to make your own decisions, learn from your mistakes and execute what works, Apex FinTech Solutions, a PEAK6 Group company, is likely the place for you. We are expanding our talented teams and excited to be creating a new centre of excellence in Belfast. We are building teams that are fully functional with leadership, back- and front-end development, data engineering, product management and testing, located in Northern Ireland.
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In this role you will lead teams of software engineers responsible for our InsightCloudSec product focused on CSPM. We ship new content and product updates regularly to our customers to ensure theyre protected from new vulnerabilities as they arise. You will work closely with an outstanding peer group of highly skilled engineers in order to prioritize and set direction of the teams. About the Team - Rapid7's Cloud Security practice is made up of developers, DevOps engineers and automated testers. We work with a cloud first technology approach, with exposure to Azure, GCP and AWS on a daily basis. The team is full of energetic, passionate and fun individuals who take pride in being accountable for the direction they take and how they prioritize their work. They are committed to continuous learning and strive to continuously learn and adapt to new tools and techniques t
In this role you will lead teams of software engineers responsible for our InsightCloudSec product focused on CSPM. We ship new content and product updates regularly to our customers to ensure theyre protected from new vulnerabilities as they arise. You will work closely with an outstanding peer group of highly skilled engineers in order to prioritize and set direction of the teams. About the Team - Rapid7's Cloud Security practice is made up of developers, DevOps engineers and automated testers. We work with a cloud first technology approach, with exposure to Azure, GCP and AWS on a daily basis. The team is full of energetic, passionate and fun individuals who take pride in being accountable for the direction they take and how they prioritize their work. They are committed to continuous learning and strive to continuously learn and adapt to new tools and techniques t
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The Tessian XFI team oversees the integration of Tessian inbound threat defence software, via API, to the Microsoft or Google e-mail platforms, and the development of Add-in (currently for Microsoft Office) for data loss prevention (DLP).
The Tessian XFI team oversees the integration of Tessian inbound threat defence software, via API, to the Microsoft or Google e-mail platforms, and the development of Add-in (currently for Microsoft Office) for data loss prevention (DLP).
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You will be responsible for writing and maintaining our APIs using Node.js, API Gateway, Lambda functions and the Serverless framework. Working on rewriting our Django API using Node.js, API Gateway, Lambda functions and the Serverless framework
You will be responsible for writing and maintaining our APIs using Node.js, API Gateway, Lambda functions and the Serverless framework. Working on rewriting our Django API using Node.js, API Gateway, Lambda functions and the Serverless framework
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Data Engineer

PA Consulting Group Holdings Limited
Belfast, County Antrim
Competitive
We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job Description
We believe in the power of ingenuity to build a positive human future. As strategies, technologies, and innovation collide, we create opportunity from complexity. Our teams of interdisciplinary experts combine innovative thinking and breakthrough technologies to progress further, faster. Our clients adapt and transform, and together we achieve enduring results. We are over 4,000 strategists, innovators, designers, consultants, digital experts, scientists, engineers, and technologists. And we have deep expertise in consumer and manufacturing, defence and security, energy and utilities, financial services, government and public services, health and life sciences, and transport. Our teams operate globally from offices across the UK, Ireland, US, Nordics, and Netherlands. Bringing Ingenuity to Life. Job Description
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Your skills and experiences might also include: Extensive experience with Java (4+ years), including REST API design and build, and familiarity with the Spring Framework.
Your skills and experiences might also include: Extensive experience with Java (4+ years), including REST API design and build, and familiarity with the Spring Framework.
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112 exact matches jobs are outside your preferred location

They are seeking aLead JavaScript (Node.js) API and React Developerto be instrumental in delivering robust, cloud-native applications that integrate cutting-edge AI features and provide a seamless user experience. * LeverageAWS API Gatewayfor managing scalable APIs andAWS SQSfor asynchronous, event-driven messaging. * Deep understanding ofAWS services, particularly API Gateway and SQS.
They are seeking aLead JavaScript (Node.js) API and React Developerto be instrumental in delivering robust, cloud-native applications that integrate cutting-edge AI features and provide a seamless user experience. * LeverageAWS API Gatewayfor managing scalable APIs andAWS SQSfor asynchronous, event-driven messaging. * Deep understanding ofAWS services, particularly API Gateway and SQS.
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Contract, 6 months - Outside IR35 - Location: Leeds, willingness to be in the office once per week or every other week as a minimum - Why Apply? We are looking for an experienced Dynamics 365 CRM Developers (multiple positions available) to support an in-flight transformation programme to build and migrate to a new Dynamics 365 CRM Solution. This involves moving off the current on-premise solution that will soon reach the end of its extended support period. Responsibilities * Design, develop, and customize solutions within Microsoft Dynamics 365 CRM. * Develop custom plugins, workflows, and integrations using C#, JavaScript, and Power Platform tools. * Work with business analysts and end users to gather and refine requirements. * Build and maintain integrations with other systems and services via APIs, Azure Logic Apps, and Power Automate.
Contract, 6 months - Outside IR35 - Location: Leeds, willingness to be in the office once per week or every other week as a minimum - Why Apply? We are looking for an experienced Dynamics 365 CRM Developers (multiple positions available) to support an in-flight transformation programme to build and migrate to a new Dynamics 365 CRM Solution. This involves moving off the current on-premise solution that will soon reach the end of its extended support period. Responsibilities * Design, develop, and customize solutions within Microsoft Dynamics 365 CRM. * Develop custom plugins, workflows, and integrations using C#, JavaScript, and Power Platform tools. * Work with business analysts and end users to gather and refine requirements. * Build and maintain integrations with other systems and services via APIs, Azure Logic Apps, and Power Automate.
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Remote - £700-£800 per day (outside IR35) About the Role - We are seeking an experienced Technical Architect to join our team on a contract basis to lead the design and delivery of solutions leveraging Salesforce Commerce Cloud (SFCC) and Blue Yonder technologies. You will be responsible for shaping scalable, high-performance, and integrated solutions that meet complex business needs across eCommerce and supply chain functions. Key Responsibilities * Lead the technical architecture, design, and implementation of solutions using Salesforce Commerce Cloud (B2C/B2B) and Blue Yonder platforms. * Define integration patterns between eCommerce, OMS, and supply chain systems using best practices. * Collaborate with business analysts, product owners, developers, and third-party vendors to ensure solutions align with business objectives.
Remote - £700-£800 per day (outside IR35) About the Role - We are seeking an experienced Technical Architect to join our team on a contract basis to lead the design and delivery of solutions leveraging Salesforce Commerce Cloud (SFCC) and Blue Yonder technologies. You will be responsible for shaping scalable, high-performance, and integrated solutions that meet complex business needs across eCommerce and supply chain functions. Key Responsibilities * Lead the technical architecture, design, and implementation of solutions using Salesforce Commerce Cloud (B2C/B2B) and Blue Yonder platforms. * Define integration patterns between eCommerce, OMS, and supply chain systems using best practices. * Collaborate with business analysts, product owners, developers, and third-party vendors to ensure solutions align with business objectives.
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We are seeking an IT Business Systems Manager to take ownership of systems development and integration across an industry recognised beauty business. This fully remote role offers the opportunity to work closely with stakeholders across multiple functions - from operations and production to commercial and finance - helping to deliver efficient, future-proof solutions in a fast-paced environment. Salary: up to £70K - Location: Remote - Our client, a globally recognised brand in the beauty and personal care industry, is investing heavily in its internal systems and digital capabilities. They are now seeking an IT Systems Development Manager to take ownership of systems development and integration across their business. * Up to £70,000 salary, depending on experience * Fully remote working (UK-based candidates only)
We are seeking an IT Business Systems Manager to take ownership of systems development and integration across an industry recognised beauty business. This fully remote role offers the opportunity to work closely with stakeholders across multiple functions - from operations and production to commercial and finance - helping to deliver efficient, future-proof solutions in a fast-paced environment. Salary: up to £70K - Location: Remote - Our client, a globally recognised brand in the beauty and personal care industry, is investing heavily in its internal systems and digital capabilities. They are now seeking an IT Systems Development Manager to take ownership of systems development and integration across their business. * Up to £70,000 salary, depending on experience * Fully remote working (UK-based candidates only)
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Were looking for an experienced Full Stack Developer with strong Python skills and a passion for building reliable, high-performance applications. This role will see you working across both front-end and back-end technologies, with a particular focus on Angular, SQL/RDBMS, and data processing with Pandas. * Develop and maintain scalable back-end services using Python * Build responsive, modern front-end interfaces using Angular (preferred) or React if required * Write efficient SQL queries and manage data within relational databases * Use Pandas for data manipulation, transformation, and analysis * Collaborate with product, data, and QA teams to deliver features from concept through to release * Contribute to technical discussions, code reviews, and continuous improvement * Maintain clean, testable, and well-documented code across the stack
Were looking for an experienced Full Stack Developer with strong Python skills and a passion for building reliable, high-performance applications. This role will see you working across both front-end and back-end technologies, with a particular focus on Angular, SQL/RDBMS, and data processing with Pandas. * Develop and maintain scalable back-end services using Python * Build responsive, modern front-end interfaces using Angular (preferred) or React if required * Write efficient SQL queries and manage data within relational databases * Use Pandas for data manipulation, transformation, and analysis * Collaborate with product, data, and QA teams to deliver features from concept through to release * Contribute to technical discussions, code reviews, and continuous improvement * Maintain clean, testable, and well-documented code across the stack
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Location: Remote (Southern UK Based) Contract Type: Contract (Outside IR35) Duration: 6 months - Day Rate: c£500 - We are seeking a highly skilled and experienced Senior ServiceNow Technical Consultant to join our client’s team on a contract basis. • Lead and contribute to the technical delivery of ServiceNow projects, including requirements gathering, solution design, development, testing, and deployment. • Provide expert-level technical guidance and support on the ServiceNow platform. • Develop and customize ServiceNow applications and modules, including but not limited to ITSM, ITOM, CSM, and Service Portal. • Design and implement integrations between ServiceNow and other enterprise systems. • Perform system administration, health checks, and performance tuning of ServiceNow instances. • Create and maintain technical documentation, including design specifications,
Location: Remote (Southern UK Based) Contract Type: Contract (Outside IR35) Duration: 6 months - Day Rate: c£500 - We are seeking a highly skilled and experienced Senior ServiceNow Technical Consultant to join our client’s team on a contract basis. • Lead and contribute to the technical delivery of ServiceNow projects, including requirements gathering, solution design, development, testing, and deployment. • Provide expert-level technical guidance and support on the ServiceNow platform. • Develop and customize ServiceNow applications and modules, including but not limited to ITSM, ITOM, CSM, and Service Portal. • Design and implement integrations between ServiceNow and other enterprise systems. • Perform system administration, health checks, and performance tuning of ServiceNow instances. • Create and maintain technical documentation, including design specifications,
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Contract Data Engineer

Deerfoot Recruitment Solutions
UK
£450 - £550 per day
Contact Data Engineer - Location: Remote - Day Rate: £450 - £550 per day (Inside IR35) Contract: Initial 6 months - Deerfoot Recruitment is working on behalf of our client - a well-established retail organisation currently undergoing an exciting, large-scale IT transformation - to source a skilled Data Engineer for a contract opportunity. This role will play a key part in the modernisation of the business's data estate, supporting the migration from legacy systems to a modern, cloud-based data platform built on Microsoft Azure technologies. The successful contractor will join a collaborative team, contributing to the design, development, and maintenance of robust data pipelines and models, ensuring data quality and accessibility across the organisation. * Strong hands-on experience with Azure Data Platform technologies (Synapse, Data Lakes, ADF)
Contact Data Engineer - Location: Remote - Day Rate: £450 - £550 per day (Inside IR35) Contract: Initial 6 months - Deerfoot Recruitment is working on behalf of our client - a well-established retail organisation currently undergoing an exciting, large-scale IT transformation - to source a skilled Data Engineer for a contract opportunity. This role will play a key part in the modernisation of the business's data estate, supporting the migration from legacy systems to a modern, cloud-based data platform built on Microsoft Azure technologies. The successful contractor will join a collaborative team, contributing to the design, development, and maintenance of robust data pipelines and models, ensuring data quality and accessibility across the organisation. * Strong hands-on experience with Azure Data Platform technologies (Synapse, Data Lakes, ADF)
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FEATURED

Full Stack Ruby Developer - Fully Remote

G.R.E. Recruitment Limited
UK
From £55,000 to £65,000 per annum
Fully Remote Ruby Developer (Ruby, Rails, PostgreSQL, REST API's, AWS/Heroku, ReactJS) -Open to applicants in the UK and EU -Award Winning Legal Platform -£55,000 - £65,000 * Experience of developing REST API's
Fully Remote Ruby Developer (Ruby, Rails, PostgreSQL, REST API's, AWS/Heroku, ReactJS) -Open to applicants in the UK and EU -Award Winning Legal Platform -£55,000 - £65,000 * Experience of developing REST API's
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Summary - Join Lunar Energy, a company building an all-electric home energy ecosystem, as a Staff Software Engineer (Backend) in the UK. You will build platform infrastructure for real-time data processing using AWS, solve optimization problems with machine learning, and design APIs and UI interfaces using functional programming and serverless computing. This role requires 8+ years of software engineering experience, proficiency in strongly-typed languages, and experience with IoT devices and Unix systems. The ideal candidate is autonomous, values learning, and enjoys working in a smaller team. Lunar Energy offers competitive compensation, healthcare benefits, wellbeing perks, financial security, professional development opportunities, and a hybrid work arrangement. Requirements - 1. 8+ years of experience as a Software Engineer - 2.
Summary - Join Lunar Energy, a company building an all-electric home energy ecosystem, as a Staff Software Engineer (Backend) in the UK. You will build platform infrastructure for real-time data processing using AWS, solve optimization problems with machine learning, and design APIs and UI interfaces using functional programming and serverless computing. This role requires 8+ years of software engineering experience, proficiency in strongly-typed languages, and experience with IoT devices and Unix systems. The ideal candidate is autonomous, values learning, and enjoys working in a smaller team. Lunar Energy offers competitive compensation, healthcare benefits, wellbeing perks, financial security, professional development opportunities, and a hybrid work arrangement. Requirements - 1. 8+ years of experience as a Software Engineer - 2.
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Find out more

How many API jobs are there in Belfast?
There are 9 API jobs within 10 miles of Belfast available on Totaljobs right now.
What other similar jobs are there to API jobs in Belfast?
As well as API jobs in Belfast, you can find Junior Cloud Engineer, Service, Hosting, amongst many others.
How many temporary and part-time API jobs are available in Belfast?
There are 4 temporary API jobs and 2 part-time API jobs available in Belfast at the moment.
Essential skills for an api career
A successful API career requires a blend of technical and soft skills. Proficiency in programming languages like JavaScript, Java, and Python, along with expertise in API design, cloud architecture, and web development, are crucial for roles such as backend developer or full stack developer.
What does a typical day look like for an api professional?
An API professional's day often involves designing, developing, and testing APIs, collaborating with cross-functional teams, and troubleshooting issues. A backend software engineer might work on integrating APIs with various platforms, whilst a servicenow developer could focus on customising and optimising API implementations.
Starting a career in api
To start an API career, focus on building a strong foundation in programming and understanding API architectures. Gain practical experience through personal projects, contribute to open-source initiatives, and consider pursuing relevant certifications in areas like Salesforce or Office 365 to enhance your marketability.
What are the different roles in the api industry?
The API industry offers diverse roles, including integration engineer, java developer, and product assistant. A magento developer might specialise in e-commerce APIs, whilst a drupal developer could focus on content management system integrations, showcasing the breadth of opportunities available in this field.