The shape of the work
About the Role
We’re looking for an Infrastructure Engineer who is excited to build the foundation that powers our product as we enter a new stage of growth. In this role, you’ll design and maintain the systems that keep our platform fast, reliable, observable, and secure. You’ll own cloud infrastructure, CI/CD pipelines, developer tooling, automation, and production operations.
You’ll have more ownership than at most companies — you’ll shape architecture, make decisions that impact the entire engineering organization, and work across the stack to ensure our platform scales smoothly.
What You'll Do
Design, build, and maintain cloud infrastructure using modern Infrastructure-as-Code tools.
Improve the reliability, scalability, and performance of our systems as the product grows.
Own CI/CD pipelines and improve developer workflows, tooling, and automation.
Partner closely with backend and frontend engineers to design resilient system architectures.
Monitor system health and performance, and lead improvements to observability and alerting.
Ensure best practices for security, secrets management, and least-privilege access.
Drive incident response, root-cause analysis, and ongoing reliability improvements.
Help shape engineering processes, deployment strategies, and long-term infrastructure roadmap.
What We’re Looking For
3–6+ years experience in infrastructure, DevOps, SRE, or platform engineering roles.
Strong experience with cloud platforms (AWS, GCP, or Azure).
Proficiency with Infrastructure-as-Code (Terraform, CloudFormation, Pulumi, etc.).
Experience with CI/CD, Docker, and Kubernetes or similar orchestration tools.
Strong understanding of networking fundamentals, distributed systems, and system performance.
Familiarity with logging, metrics, tracing, and modern observability stacks.
A pragmatic, automation-first mindset.
Ability to thrive in a fast-moving environment with a high degree of ownership.
Strong communication skills and a collaborative approach.
Nice-to-Haves
Experience managing production environments at scale.
Background in security engineering or compliance frameworks.
Experience with service mesh, event-driven architectures, or multi-region deployments.
Comfort building internal tooling for developers.
Interest in helping build the engineering culture as the company grows.
Why You’ll Love Working Here
High ownership and autonomy — you’ll directly influence what we ship and how we build.
A product that customers love, with strong early traction and a huge opportunity ahead.
A collaborative, low-ego team that values learning, quality, and impact.
Competitive compensation, equity, and benefits.
Equal Employment Opportunity and Diversity Statement
We are committed to equal employment opportunity in both principle and as a matter of policy. We will recruit, hire, train, promote, compensate and provide benefits to all applicants and employees without regard to ancestry, sex, race, color, ethnicity, national origin, gender, age, religion, religious creed, mental and/or physical disability, medical condition, military and/or veteran’s status, genetic information, marital status, sexual orientation, gender identity and/or expression, or any other basis protected by applicable federal, state and local laws. This policy applies to all recruiting, hiring, promotions, upgrades, layoffs, compensation, benefits, terminations and all other privileges, terms and conditions of employment. The firm complies fully with all federal, state and local equal employment opportunity laws.
What we offer
Salary band
Competitive
Public band. Same rate for the same role.
Equity
Meaningful
10-year exercise window from leaving date.
Plus 36 days off, six months fully paid parental leave, £2,000 learning budget, climate sabbatical every five years, private health, pension matched 8%, and a rail-first travel policy across our European studios. Read the full package →
How hiring works
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i
Intro call · 30 min
With our Head of People. Mutual scoping — your story, the role, package, anything you need to know up front.
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ii
Deep-dive conversation · 60 min
With the hiring manager. Real work in your domain, no trick puzzles. We share material 24 hours ahead so you can come prepared.
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iii
Take-home · ~3 hours, paid
A real task from our backlog. We pay £250 for your time, regardless of outcome.
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iv
Onsite · half day
London studio (or video). Walk through your take-home with the team, meet engineering and product, finish with a no-pressure lunch.
A bit about the team
You'll join a group spread across our European studios — academic backgrounds mixed with industry, peer-reviewed and opinionated. Quarterly we close ranks for a "field week"; recent ones included a co-op cocoa supplier in Ghana and a vertical farm in Lyon.
Mossroot is committed to building a team as diverse as the supply chains we work on. We particularly welcome applications from groups under-represented in climate science.