Principal Full Stack Engineer
Location: Belfast
Working Model: Hybrid
Type: Permanent
Reporting to: Head of Engineering
OCHO is partnering with a high growth technology business to appoint a Principal Full Stack Engineer who can operate at the intersection of architecture, delivery, and leadership.
This is not a heads down coding role. This is a platform shaping position for someone who wants influence.
You will sit close to Product and Engineering leadership, helping define technical direction while still delivering high impact, customer facing software. The business is building modern, scalable platforms using JavaScript first technologies, cloud native infrastructure, and event driven architectures. They need someone who can take ambiguity and turn it into clean, shippable systems.
What You'll Be Doing
You will:
* Lead the design and delivery of full stack features across React, Next.js, TypeScript, Node.js, and Python
* Architect scalable backend services, APIs, and integrations
* Partner with Product and UX to shape features from idea to release
* Own the full delivery lifecycle from planning through QA, release, and iteration
* Build and optimise CI and CD pipelines using GitHub Actions, Docker, Kubernetes, and AWS
* Provide architectural guidance and technical leadership across teams
* Mentor junior and mid level engineers, raising the bar on quality and velocity
* Contribute to engineering standards, rituals, and best practice adoption
* Present demos and technical updates to keep stakeholders aligned
This role requires someone comfortable moving between strategy and execution.
What We're Looking For
You'll likely bring:
* 7+ years of full stack engineering experience
* Strong commercial experience with React, TypeScript, Node.js, and Python
* Deep understanding of AWS including EC2, ECS, S3, and Lambda
* Experience with Docker and Kubernetes in production environments
* Hands on experience building modern CI and CD pipelines
* Experience leading engineers and owning technical delivery
* A product mindset with the ability to translate business objectives into technical solutions
* Strong communication skills and confidence influencing stakeholders
Experience in startup, scale up, or greenfield environments is highly valued.
Comfort working with PostgreSQL is expected. Exposure to MongoDB is beneficial.
Nice to Have
* Experience with distributed systems or event driven architectures
* Exposure to platform engineering or developer tooling
* Experience building SDKs or integrating third party services
Why This Role
This is a high ownership position with genuine influence over technical direction.
You will help shape greenfield products in a product first culture where engineering is central to business success. There is a clear pathway into Tech Lead or Staff Engineer level progression for the right person.
If you are an engineer who enjoys shipping meaningful software, guiding teams, and shaping platforms from the ground up, reach out to Ryan Quinn on LinkedIn for a confidential discussion.
OCHO. Building Teams.