At a Glance
- Tasks: Lead the migration to Terraform and optimise CI/CD pipelines for a cutting-edge AI platform.
- Company: Join StackOne, a dynamic startup backed by Google Ventures and Workday Ventures.
- Benefits: Competitive salary, innovative projects, and the chance to shape the future of cloud integration.
- Other info: Work on complex engineering challenges and enjoy excellent career growth opportunities.
- Why this job: Be the first dedicated platform engineer and make a foundational impact in a high-growth environment.
- Qualifications: 4+ years in platform engineering with expertise in AWS and Infrastructure as Code.
The predicted salary is between 70000 - 90000 £ per year.
StackOne is a $24M Series B London‑based startup backed by GV and Workday Ventures, building the leading AI Integration Gateway. They provide a unified API layer for HR, CRM, and ATS platforms, enabling SaaS providers to orchestrate scalable, enterprise‑grade integrations for AI agents and business systems.
As the first dedicated Senior Platform Engineer, you will own the infrastructure behind StackOne’s AI Integration Gateway. Reporting to the CTO, you'll lead the migration from AWS CDK to Terraform, optimize CI/CD pipelines for a growing monorepo, and architect the delivery of the platform into customers' own cloud environments via BYOC models.
Why this role is remarkable:
- Foundational Impact: Join as the first dedicated platform engineer, defining the infrastructure strategy and DevOps culture from the ground up for a high‑growth startup.
- Blue‑Chip Backing: Backed by top‑tier investors GV (Google Ventures) and Workday Ventures with $24M raised to solve complex enterprise integration challenges.
- Complex Engineering: Work on cutting‑edge "Bring Your Own Cloud" (BYOC) architecture, delivering SaaS infrastructure directly into major enterprise cloud accounts like AWS, GCP, and Azure.
What You Will Do:
- Lead the transition of the entire AWS estate from AWS CDK to Terraform while maintaining high reliability for production workloads like ECS Fargate and Aurora.
- Architect and automate the deployment pipeline, consolidating toward a monorepo with incremental, affected‑only testing to ensure rapid developer feedback loops.
- Build the versioning, packaging, and delivery systems required to ship StackOne’s platform into customer‑managed cloud environments with full observability and security.
The ideal candidate:
- Has 4+ years of experience in platform engineering or SRE, with deep expertise in AWS services including ECS/Fargate, RDS/Aurora, and Lambda.
- Demonstrates high proficiency in Infrastructure as Code (Terraform/CDK) and programming in TypeScript or Python to build developer tools rather than just configuration.
- Possesses a security‑first mindset with experience securing CI/CD pipelines and ideally shipping software into customer‑managed cloud or on‑prem environments.
Senior Platform Engineer at StackOne in London employer: Jack & Jill
At Jack & Jill, we pride ourselves on being an exceptional employer that fosters a dynamic and innovative work culture. Our team enjoys a range of benefits including flexible working arrangements, professional development opportunities, and a collaborative environment that encourages creativity and growth. Located in a vibrant area, we offer unique advantages such as access to cutting-edge technology and the chance to work with industry leaders in AI-driven marketing strategies.
StudySmarter Expert Advice🤫
We think this is how you could land Senior Platform Engineer at StackOne in London
✨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 Jack & Jill 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 Jack & Jill.
✨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 Jack & Jill.
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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 Jack & Jill 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 Senior Platform Engineer at StackOne in London
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 Jack & Jill.
Craft a killer cover letter:Your cover letter is your chance to stand out—make it personal! Explain why you want to work at Jack & Jill 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 Jack & Jill
✨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 Jack & Jill 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.
