Senior Backend Architect & Platform Leader

SQUID; Dublin; On-site; EUR 110,000 - 170,000; Full time

Job summary

SQUID in Dublin, Ireland is building a loyalty and rewards platform to strengthen customer relationships and local communities. We seek a Senior Backend Engineer (Architecture & Platform) to own backend architecture, mentor engineers and drive scalable, secure production systems.

You will design and review production code, work with product and engineering teams, and shape the platform's evolution while staying hands-on in implementation and integration work.

Qualifications

• Seven+ years of backend engineering experience with architectural ownership.
• Demonstrated ability to make system design decisions and lead technical initiatives.
• Experience designing secure, reliable REST APIs and working with production systems on cloud platforms (GCP).
• Strong knowledge of relational databases, data modelling and SQL.
• Experience with payments integrations and external APIs, observability and CI/CD.

Responsibilities

• Own and evolve the architecture of SQUID's backend platform.
• Lead system design for new products, services and partner integrations.
• Build and maintain production services and APIs using TypeScript and Node.js.
• Balance scalability, reliability, delivery speed and cost, and document key decisions.
• Mentor engineers, review code, and drive engineering standards across the team.
• Lead technical responses to production issues and partner integrations.

Skills

Backend architecture

System design

REST APIs

Node.js

TypeScript

SQL

GCP

Distributed systems

Payments integrations

Observability

CI/CD

Debugging

Code review

Mentoring

Engineering leadership

Education

Computer Science degree

Tools

Stripe

Firebase

Cloud Run

Cloud SQL

Pub/Sub

BigQuery

Job description

SQUID in Dublin, Ireland is building a loyalty and rewards platform to strengthen customer relationships and local communities. We seek a Senior Backend Engineer (Architecture & Platform) to own backend architecture, mentor engineers and drive scalable, secure production systems.

You will design and review production code, work with product and engineering teams, and shape the platform's evolution while staying hands-on in implementation and integration work.