Staff Platform Engineer - UK in Cardiff

Staff Platform Engineer - UK in Cardiff

Cardiff Full-Time 70000 - 90000 £ / year (est.) Home office (partial)
Multicoin

At a Glance

  • Tasks: Build and optimise infrastructure for a fast-growing software company.
  • Company: Join Ashby, a dynamic tech company with notable clients like Shopify and Notion.
  • Benefits: Enjoy competitive salary, unlimited PTO, and a generous education budget.
  • Other info: Work in a supportive, inclusive environment with excellent growth opportunities.
  • Why this job: Make a real impact by solving complex problems and owning projects.
  • Qualifications: Strong coding skills and experience with large-scale systems required.

The predicted salary is between 70000 - 90000 £ per year.

We’re looking for a curious, rigorous, problem‑hungry platform engineer who codes to help Ashby scale to the next level.

Ashby builds software that lets talent teams streamline hiring, and we need an engineer who can build the reliable, secure, and fast infrastructure that supports this growth.

We have notable customers such as Notion, Linear, Shopify, and Snowflake.

Our ARR is in the tens of millions and we are growing more than 100% year over year with over 2,500 customers.

About the Role and How We Work

I’m Colin, Head of EMEA Engineering, and I’ve led engineering teams in startups for many years.

Our infrastructure is mission‑critical and continuously evolving.

As a Platform Engineer at Ashby you will own end‑to‑end projects, ship code with minimal oversight, and maintain a secure, simple environment for our product‑team to build in.

Responsibilities

  • Optimize our dynamic DSL‑to‑SQL compiler and develop tools for developers.
  • Create automated guardrails for the security and privacy of customer data.
  • Help our team ship features fast through canary deploys, gradual rollouts, and feature flags while keeping complexity manageable.
  • Define SLOs with the engineering team and implement corresponding SLIs.
  • Ensure all external services support retries and circuit‑breakers.
  • Implement the infrastructure needed for an event‑driven architecture and a data warehouse.

Qualifications

  • Strong coding skills and a passion for building engineered solutions .
  • Experience building or maintaining large‑scale distributed systems.
  • Comfort with SQL, data models, and performance tuning.
  • Proactive self‑management: ability to deliver projects independently with clear documentation.
  • A mindset that values security, reliability, and high performance.
  • Why You Should or Shouldn’t Apply
  • Apply if you enjoy deep problem solving, taking ownership, and writing impact‑driven code.
  • Apply if you value engineering autonomy, can handle technical risk, and like to work with minimal process interference.
  • Do not apply if you prefer strict top‑down decision making, dislike coding, or require heavy guidance on delivery.
  • Technology Stack
  • Type Script (frontend & backend), Node. js, React, Apollo Graph QL.
  • Postgres, Redis.
  • Datadog and Sentry on a 100% cloud‑based (AWS) infra.

Benefits

  • Competitive salary and equity.
  • 10‑year exercise window for stock options.
  • Unlimited PTO, encouraged for use.
  • Minimum 12 weeks fully paid parental leave.
  • Generous equipment, software, and office furniture budget.
  • £100 per month education budget.
  • Health insurance fully covered in the US; supplemental health insurance covered outside the US.

Ashby provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity, or gender expression.

We are committed to a diverse and inclusive workforce and welcome people from all backgrounds, experiences, perspectives, and abilities.

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Staff Platform Engineer - UK in Cardiff employer: Multicoin

At Ashby, we pride ourselves on being an exceptional employer, particularly for our Solutions Engineers in the DACH region. Our collaborative work culture fosters innovation and personal growth, allowing you to thrive while selling a product that genuinely excites customers. With generous benefits like a substantial education budget and a focus on high-quality work, you'll find meaningful opportunities to develop your skills and make a significant impact in the talent acquisition landscape.

Multicoin

Contact Details:

Multicoin Recruitment Team

StudySmarter Expert Advice🤫

We think this is how you could land Staff Platform Engineer - UK in Cardiff

Join Local Tech Meetups

Get out there and mingle with fellow developers by joining local tech meetups. It’s a fantastic way to meet people who might be working at Multicoin or know someone who does. Plus, you can pick up some trendy tech skills and trends while you're at it!

Contribute to Open Source Projects

Show off your coding chops by jumping into open-source projects. Not only does this give you practical experience, but it also gets you noticed in the dev community. You'll create a killer portfolio that speaks volumes about your skills to Multicoin.

Tap into Online Developer Communities

Don’t underestimate the power of online developer communities like GitHub, Stack Overflow, and even Reddit. Participate in discussions, share your projects, and build your visibility. We can often find opportunities through these channels that can lead to a full-time gig at companies like Multicoin.

Explore Job Boards Specifically for Tech Roles

Keep your eyes peeled on job boards that focus on tech roles. Sites like TechCareers or Stack Overflow Jobs can often have listings for companies like Multicoin that might not show up on broader job sites. Make it a habit to check these regularly, and don’t hesitate to apply directly through our website!

We think you need these skills to ace Staff Platform Engineer - UK in Cardiff

Strong Coding Skills
Experience with Large-Scale Distributed Systems
SQL Proficiency
Performance Tuning
Proactive Self-Management
Security Mindset
Reliability Focus

Some tips for your application 🫡

Show off your coding skills:When applying for a software engineering role, it's super important to showcase your coding skills. Make sure your CV includes your tech stack, any relevant programming languages you’re comfortable with, and examples of projects you've worked on. If you have a GitHub profile, link it up! We love to see code in action.

Tailor your portfolio:For a full-time role, we’d expect to see some solid examples of your work in your portfolio. Make sure to include at least two or three projects that highlight your problem-solving skills and your ability to work with different technologies. Focus on the projects that are most relevant to the position at Multicoin.

Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Multicoin and how your skills align with the role. Show us your passion for software development. We dig enthusiastic candidates who understand the value of collaboration and continuous learning!

Be clear and concise:When it comes to writing your CV and cover letter, clarity is key. Avoid jargon that could confuse us and stick to simple, direct language. Highlight your achievements with quantifiable results where possible, and keep everything easy to read. A well-organised application goes a long way!

How to prepare for a job interview at Multicoin

Brush Up on Your Coding Skills

For a full-time software engineering role, it's crucial that we stay sharp with our coding abilities. Expect technical questions that might involve solving problems on the spot or discussing algorithms. Practise on platforms like LeetCode or HackerRank to get comfortable with the types of questions that often come up.

Know Your Tools and Frameworks

Make sure we’re well-acquainted with the tools and technologies listed in the job description. Familiarise ourselves with any specific frameworks or programming languages mentioned. If Multicoin uses React or Node.js, for instance, be ready to discuss how we’ve used them in previous projects or coursework.

Showcase Your Projects

Bring along a portfolio that highlights our best work. This could be code samples, GitHub repositories, or any side projects we’ve built. Make sure we can talk through our thought process for each project, especially the challenges we faced and how we solved them—this shows our problem-solving skills in action.

Prepare for Behavioural Questions

While technical skills are key, full-time positions also require cultural fit. Be ready to discuss our previous experiences and how we handle teamwork, conflict, and deadlines. Brush up on the STAR method—Situation, Task, Action, Result—to clearly articulate our past experiences when discussing how we've contributed to a team.