Senior Software Engineer (Edge) in London

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.

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.

As a Senior Software Engineer in the Platform Edge team, you will build the infrastructure that powers fast, reliable package delivery at a global scale. You will 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.

Key Responsibilities:

• 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.

Required Experience, Qualities & Skills:

• 5+ years (or equivalent) of professional experience building, testing, and maintaining complex distributed systems in production.
• Strong experience with Rust (or another low-level systems language) for building high-performance infrastructure services; experience with Typescript or Python is a plus.
• Familiarity with proxy technologies (e.g., Envoy, Traefik, HAProxy, nginx), network routing, CDNs, edge compute, DNS, certificate management, and observability.
• 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.
• You understand the importance of shipping early and often and delivering value iteratively.
• An enthusiastic and effective communicator who can bridge the gap between technical and non-technical stakeholders.
• Deeply passionate about your craft, eager to learn, and comfortable admitting what you don’t yet know.

Benefits:

• A competitive compensation package, including equity.
• Comprehensive health, dental, and vision insurance.
• Generous annual leave and flexible working policies to suit your lifestyle.
• Professional development budget for conferences and training.
• A dynamic, innovative, trust-centric, and supportive work environment.
• Opportunity to shape a fast-growing Series B startup (and beyond).

Health and Wellness:

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.

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.

Facilities:

Cloudsmith is headquartered in Belfast, Northern Ireland, with fully-equipped office space that’s open 24x7. We use our HQ regularly for activities like working sessions, team planning, meets and greets, and sometimes other group activities (like games!).

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.

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.