Senior Platform Engineer

Job Overview

Join a fast-growing startup with a bold vision of a world where doing good is built into everything we do. Backed by General Catalyst, the same investors behind Stripe and Airbnb, we’re one of Europe’s fastest-growing SaaS companies – building the technology that enables global enterprises to give, volunteer, and fund with confidence.

Key Responsibilities

• Work on the design and evolution of our AWS-based systems with a focus on automation, resilience, and scale.


• Own and extend our Terraform codebases, setting standards for maintainability, security, and modularity.


• Drive improvements in our containerised environments (ECS/EKS) and champion best practices for running Node.js services in production.


• Proactively identify opportunities to optimise cost, performance, and developer velocity.


• Mentor and support mid-level platform engineers, raising the bar for technical excellence and collaboration.


• Work with engineering in a wider sense to ensure their success with the platform.


• Partner with engineering leadership to define platform strategy, architecture choices, and roadmap.


• Elevate observability, monitoring, and incident response practices across the stack.

Required Qualifications

• 5+ years of experience as a Platform, DevOps, or Infrastructure Engineer in high-scale environments.


• Deep expertise with AWS (ECS/EKS, IAM, VPC, CloudWatch, S3, networking).


• Strong proficiency in Terraform (HCL) — from writing complex modules to managing multi-env deployments or at least strong proficiency in another IaC tool like Pulumi/CloudFormation.


• Proven experience with CI/CD pipelines and deployment automation (GitHub Actions, or similar).


• Proficiency in a programming language like Node.js, Python or Go


• Strong *nix sysadmin skills.


• Strong grounding in containerisation (Docker, Kubernetes) and production best practices.


• A system-wide perspective, you think about reliability, performance, security, and developer experience holistically.


• Experience mentoring or guiding engineers, and a desire to lead by example.

About Goodstack

Since 2017, Goodstack has been at the forefront of creating a future where good will be built into everything we do. From daily commutes to weekend activities or grocery shopping, we envision a world where creating positive change is seamlessly integrated into our everyday lives.

Benefits

Salary reviews and share options becoming an integral part of our growth and share in the company's success

Goodstack’s Workplace Giving

Vitality Plus - Private health insurance

£250 Brighten your day annual budget

£1000 Learning & development annual budget

Goodstack library

Tasty Tuesday! Office lunch is on the company

Slow run club Wednesday

Paid days off to volunteer for non-profit causes

Paid days to attend conferences

Paid day off on your birthday!

25 days annual leave, plus paid public holidays

Paid sick leave

Paid wellness leave

Parental leave

Workplace nursery scheme

Pension (with tax-efficient salary sacrifice option)

UK cycle-to-work scheme

Ecologi carbon offsetting

Flexible working hours

WFH budget upon joining

You're always welcome to pop in more often if you enjoy the buzz of being in the office. It's a warm, friendly space right in the heart of London