Senior Software Engineer (Edge)

Build: Design, build, and ship new features and optimisations for our edge infrastructure that enhance global package delivery performance across public and private networks. Resilience: Help keep our systems fast, reliable, and running smoothly at a global scale. Collaborate: Work closely with teammates from product, design, and customer success to solve complex scaling and networking problems together. Quality: Prioritise quality and security through rigorous testing, monitoring, and sustainable engineering habits. Mentor: Share your knowledge through code reviews, documentation, and mentoring others to foster a growth-oriented environment.

We realise that not everyone will have every experience and expertise in every possible thing. Still, if you have many of the following, we might be a great place to progress your career.

Experience: 5+ years (or equivalent) of professional experience building, testing, and maintaining complex distributed systems in production. Technical Proficiency: Strong experience with Rust (or another low-level systems language) for building high-performance infrastructure services; experience with Typescript or Python is a plus. Edge Networking Domain: Familiarity with proxy technologies (e.g., Envoy, Traefik, HAProxy, nginx), network routing, CDNs, edge compute, DNS, certificate management, and observability. Infrastructure: Familiarity with cloud-based infrastructure and related services (AWS, CloudFront, Lambda, ECS, Postgres, S3, Kinesis, Terraform, Clickhouse), container runtimes, event-driven architectures (high volume data pipelines), and continuous integration. Iterative Delivery: You understand the importance of shipping early and often and delivering value iteratively. Communication: An enthusiastic and effective communicator who can bridge the gap between technical and non-technical stakeholders. Mindset: Deeply passionate about your craft, eager to learn, and comfortable admitting what you don’t yet know.

Note: You must be based in Ireland or the United Kingdom and have the right to work independently without requiring sponsorship. Headlines

A position based in Ireland or the United Kingdom. A competitive compensation package, including equity. With comprehensive health, dental, and vision insurance. Plus, generous annual leave and flexible working policies to suit your lifestyle. Including a professional development budget for conferences and training. In a dynamic, innovative, trust-centric, and supportive work environment. With the opportunity to shape a fast-growing Series B startup (and beyond). Regular (monthly-ish) travel may be required for team meetings. Regular (quarterly-ish) travel may also be required for events and customers.

Health and Wellness Regardless of your location, we deeply care about the health and wellness of our staff and their families; a sustainable pace is important to us. In addition to generous annual leave (PTO), we offer health and well-being benefits along with flexible family-friendly working policies.

TL;DR: We are looking for a collaborative engineer with a bias for action and a strong focus on delivering customer value. If you are motivated to solve performance problems at a massive scale and passionate about your craft, you will find a supportive environment at Cloudsmith. About Cloudsmith Cloudsmith is transforming how organizations handle software artifacts and secure their supply chains. As a cloud native, multi-tenant platform, we enable organizations to build software better, through best-in-class artifact management and software supply chain security. Our vision is to become the software supply chain itself, powering the future of software delivery. We are the world’s most potent artifact management platform, built by developers for developers. Our platform supports over 30 formats spanning languages, container formats, and operating systems, with enterprise-grade features, including vulnerability and security scanning, world-class policy management and enforcement, and web-scale to handle the Fortune 500. Organizations integrate Cloudsmith as critical infrastructure into their development, deployment, and distribution pipelines, trusting us to protect and accelerate, regardless of scale. Backed by top-tier investors and on a trajectory toward IPO and beyond, we’re building mission-critical infrastructure that powers software delivery for organizations worldwide. We operate at the cutting edge of cloud-native technology, tackling complex distributed systems challenges that directly impact millions of developers. Now is an exciting time to join us as we revolutionize how organizations deliver and secure software and help write the next chapter of our rocketship growth story. The Role As a Senior Software Engineer in the Platform Edge team, you’ll build the infrastructure that powers fast, reliable package delivery at a global scale. You’ll design and implement edge caching systems, CDN optimisations, and distributed networking solutions that ensure our customers can access their packages quickly and reliably from anywhere in the world. This is a rare opportunity to shape the future of our edge infrastructure by designing greenfield solutions that unlock the next stage of global scale. Your work will help teams ship with confidence-knowing their packages are delivered with optimal performance and availability. Our Team We are four teams responsible for building application capabilities and the underlying platform upon which Cloudsmith is founded. We operate in a highly collaborative environment, where people with different skills come together to make things happen. We each contribute to an environment where curiosity, support, transparency, and bias for action reign. We have a modern CI/CD approach, deploying several times per day, and we support a global set of customers who are engineers like us., Personal Growth You will have an enormous opportunity to learn new skills alongside your colleagues, and your continued professional development is essential to us because it’s important to you. We will support you with budgets for equipment, training, books, conferences, travel, and certifications. The more powerful you become, the better for all of us. Facilities Cloudsmith is headquartered in Belfast, Northern Ireland, with fully-equipped office space that’s open 24x7. We use our H.Q. regularly for activities like working sessions, team planning, meets and greets, and sometimes other group activities (like games!). We also hold all-hands off-sites in Belfast twice a year, featuring guest speakers and team activities. Many Cloudsmithers work remotely, so we rely on our online collaboration tools; Slack, Google Docs, Linear, and other popular collaboration tools are how we work. About Equal Opportunity Cloudsmith is an equal-opportunity employer proud to nurture a diverse workplace that welcomes applications from individuals of all races, genders, and ethnic groups. We do not discriminate on age, religion, sexual orientation, citizenship status, military service, or health conditions. We will not tolerate discrimination of any kind within our workforce. The Final Word We’re looking for someone who has a passion for their craft, a collaborative attitude, and a desire to build a product customers love. We are critical infrastructure built by developers for developers, and we are building the world’s software supply chain platform and ecosystem. We want to hear from you if you are excited to build the edge networking layer that powers software delivery at a global scale-balancing thoughtful design with real-world constraints-to leave a lasting impact on the software industry from today until IPO and beyond.