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        3 Permanent API jobs in County Down + 20 miles

        Beckend Engineer Intern - Placement Year 2026

        Proofpoint
        Belfast, County Antrim
        Competitive
        The Tessian product offers inbound threat defence software, via API, to Microsoft or Google e-mail platforms, as well as a data loss prevention (DLP) service that utilises Machine Learning for maximum protection.
        The Tessian product offers inbound threat defence software, via API, to Microsoft or Google e-mail platforms, as well as a data loss prevention (DLP) service that utilises Machine Learning for maximum protection.
        more
        Join Kainos and Shape the Future - At Kainos, were problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether were transforming digital services for millions, delivering cutting-edge Workday solutions, or pushing the boundaries of technology, we do it together. We believe in a people-first culture, where your ideas are valued, your growth is supported, and your contributions truly make a difference. Here, youll be part of a diverse, ambitious team that celebrates creativity and collaboration. Ready to make your mark? Join us and be part of something bigger. As a Senior Test Engineer (Senior Associate) in Kainos, youll work within a multi-skilled agile team, developing and executing functional automated and manual tests to help the team deliver working application software that meets user needs.
        Join Kainos and Shape the Future - At Kainos, were problem solvers, innovators, and collaborators - driven by a shared mission to create real impact. Whether were transforming digital services for millions, delivering cutting-edge Workday solutions, or pushing the boundaries of technology, we do it together. We believe in a people-first culture, where your ideas are valued, your growth is supported, and your contributions truly make a difference. Here, youll be part of a diverse, ambitious team that celebrates creativity and collaboration. Ready to make your mark? Join us and be part of something bigger. As a Senior Test Engineer (Senior Associate) in Kainos, youll work within a multi-skilled agile team, developing and executing functional automated and manual tests to help the team deliver working application software that meets user needs.
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        Work with Python 3 and AWS to build and evolve backend services and distributed systems that handle large volumes of data efficiently. * Participate in technical discussions and design reviews, contributing ideas and learning from more experienced engineers. * Backend software development (our codebase is Python, but were open to candidates transitioning from Java or similar languages). * Clear, thoughtful communication skills, both written and verbal, when working with engineers and non-engineers alike. Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and collaboration tools. Over 80 of the Fortune 100, 10,000 large enterprises, and millions of smaller organizations trust Proofpoint to stop threats, prevent data loss, and build resilience across their people and AI workflows.
        Work with Python 3 and AWS to build and evolve backend services and distributed systems that handle large volumes of data efficiently. * Participate in technical discussions and design reviews, contributing ideas and learning from more experienced engineers. * Backend software development (our codebase is Python, but were open to candidates transitioning from Java or similar languages). * Clear, thoughtful communication skills, both written and verbal, when working with engineers and non-engineers alike. Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and collaboration tools. Over 80 of the Fortune 100, 10,000 large enterprises, and millions of smaller organizations trust Proofpoint to stop threats, prevent data loss, and build resilience across their people and AI workflows.
        more
        Join the Platform team at Tessian Group and get hands-on with exciting projects like our Kubernetes migration, scaling infrastructure to meet growing demand, and solving real-world challenges around performance and reliability. You'll help build the tools and systems that empower our engineers to ship faster, safer, and smarter. As part of a collaborative and supportive team, youll contribute to shaping how we scale, automate, and improve our platformwhile growing your skills and working alongside experienced engineers across the company. Embed in the Platform team and become a key player in projects across Engineering and Security - Some experience or exposure to cloud platforms, preferably AWS (or similar platforms like GCP or Azure). Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and ...
        Join the Platform team at Tessian Group and get hands-on with exciting projects like our Kubernetes migration, scaling infrastructure to meet growing demand, and solving real-world challenges around performance and reliability. You'll help build the tools and systems that empower our engineers to ship faster, safer, and smarter. As part of a collaborative and supportive team, youll contribute to shaping how we scale, automate, and improve our platformwhile growing your skills and working alongside experienced engineers across the company. Embed in the Platform team and become a key player in projects across Engineering and Security - Some experience or exposure to cloud platforms, preferably AWS (or similar platforms like GCP or Azure). Proofpoint is a global leader in human- and agent-centric cybersecurity. We protect how people, data, and AI agents connect across email, cloud, and ...
        more
        The Technical Services Manager leads the management of product specifications and artwork approval processes, ensuring all products meet legal, safety and customer requirements. This role oversees technical documentation, label compliance, claims validation and communication with internal teams and external stakeholders. The position ensures all technical data is accurate, up-to-date, and aligned with regulations and customer expectations. Click here to view full job description: Technical Services Manager Specifications & Artwork
        The Technical Services Manager leads the management of product specifications and artwork approval processes, ensuring all products meet legal, safety and customer requirements. This role oversees technical documentation, label compliance, claims validation and communication with internal teams and external stakeholders. The position ensures all technical data is accurate, up-to-date, and aligned with regulations and customer expectations. Click here to view full job description: Technical Services Manager Specifications & Artwork
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        Senior Software Developer

        Oscar Associates (UK) Limited
        Newcastle Upon Tyne (NE1)
        £60000 - £70000 per annum
        They are looking for a Senior Full Stack Engineer to play a key role in delivering the first iteration of a strategic cloud platform that will expand under a 'fail fast' innovation model. This is an excellent opportunity for a senior engineer who thrives in structured, security-focused environments and enjoys building clean, scalable systems from the ground up. You'll join a senior engineering team delivering a greenfield platform consisting of a .NET MAUI mobile application (iOS & Android), an Angular 21 web application, and Azure-hosted backend services built using clean architecture principles. * At least 5 years' commercial software engineering experience - Full Stack Engineer - UK (Remote) - £60k-£70k - I'm working with a UK-based organisation that is building a secure, offline-capable property visiting platform using modern Microsoft technologies. The Opportunity
        They are looking for a Senior Full Stack Engineer to play a key role in delivering the first iteration of a strategic cloud platform that will expand under a 'fail fast' innovation model. This is an excellent opportunity for a senior engineer who thrives in structured, security-focused environments and enjoys building clean, scalable systems from the ground up. You'll join a senior engineering team delivering a greenfield platform consisting of a .NET MAUI mobile application (iOS & Android), an Angular 21 web application, and Azure-hosted backend services built using clean architecture principles. * At least 5 years' commercial software engineering experience - Full Stack Engineer - UK (Remote) - £60k-£70k - I'm working with a UK-based organisation that is building a secure, offline-capable property visiting platform using modern Microsoft technologies. The Opportunity
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        Frequently Asked Questions

        How many permanent API jobs are there in County Down?
        There are 3 permanent API jobs within 20 miles of County Down available on JustEngineers right now.

        What other similar jobs are there to permanent API jobs in County Down?
        As well as permanent API jobs in County Down, you can find permanent Engineering, IT, Testing, amongst many others.