Senior Software Engineer

Cloudsmith; United Kingdom; Hybrid; GBP 70,000 - 90,000; Full time

Job summary

A leading technology company is seeking a Senior Software Engineer to join their Supply Chain Trust team. The role involves building a security platform by designing and implementing reliable data pipelines. Candidates should have 5+ years of experience in distributed systems, proficient in Python, and familiarity with cloud-based infrastructure. This role offers extensive opportunities for professional development and competitive benefits in a collaborative and innovative environment.

Benefits

Comprehensive health, dental, and vision insurance

Equity in the company

Generous annual leave

Professional development budget

Qualifications

• 5+ years of experience building complex distributed systems.
• Strong experience with Python (Django); familiarity with Golang or Rust.
• Experience in software supply chain security or vulnerability scanning.

Responsibilities

• Design and build new features for the platform.
• Integrate high-fidelity security data feeds.
• Ensure systems are fast and reliable at a global scale.
• Collaborate with product and design teams.
• Prioritize quality through rigorous testing.
• Mentor other team members and share knowledge.

Skills

Python (Django)

Golang

Rust

AWS

Strong communication

Security domain knowledge

Tools

Terraform

Postgres

Kafka

Lambda

Job description

Engineering · NI/GB/ROI

Senior Software Engineer

TL;DR: We're seeking an engineer who is passionate about their craft, has a bias for action, a focus on delivering customer value and a collaborative, low-ego approach. If that’s you, you’ll find a supportive community of like‑minded people at Cloudsmith.

About Cloudsmith

Cloudsmith is transforming how organizations handle software artifacts and secure their supply chains. As a fully managed multi‑tenant Software as a Service (SaaS) 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, no matter the 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 on the Supply Chain Trust team, you’ll build the foundations of our security platform. You’ll turn industry‑standard security feeds into fast, reliable data pipelines that power policy, trust, and visibility for our customers. Your work will help teams secure their software supply chains and ship with confidence—knowing exactly what software they’re running and where it came from.

Engineering @ Cloudsmith

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 have a modern approach to CI/CD, deploying several times per day, and we support a global set of customers who are engineers like us.

Key Responsibilities

• Build: Design, build and ship new features for the Enterprise Policy Manager and robust APIs that enhance the Cloudsmith platform.
• Data Ingestion: Integrate and maintain high‑fidelity security data feeds to drive automated policy enforcement.
• Resilience: Help keep our systems fast, reliable, and running smoothly at global scale.
• Collaborate: Work closely with teammates from product, design, and customer success to solve complex security problems together.
• Quality: Prioritize 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

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 Python (Django) is preferred; experience with Golang or Rust is a plus. Knowledge of AWS and other services (e.g. Lambda, ECS, Postgres, Clickhouse, S3, Kinesis, Kafka, Terraform).
• Security Domain: Familiarity with software supply chain security, vulnerability scanning, or policy‑as‑code.
• Infrastructure: Familiarity with cloud‑based infrastructure (AWS), container runtimes, 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.

Benefits, Location & Work Environment

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 wellbeing 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. 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 offsites in Belfast thrice yearly, with 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 policy and security engine that underpins this—balancing thoughtful design with real‑world constraints to leave a lasting impact on the software industry from today until IPO and beyond.

Department: Engineering

Locations: NI/GB/ROI

Contact: Gwen Burchell, Engineering Manager – Engineering

Founded in 2016

Co-workers 120+ (and growing!)

Engineering · NI/GB/ROI

Senior Software Engineer

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