Senior Backend Architect — Scalable Enterprise SaaS

AEY & Associates

Sydney

On-site

AUD 180,000 - 280,000

Full time

20 hours ago

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Job summary

AEY & Associates is seeking a senior backend architect to evolve an enterprise-grade platform. You will own the architectural roadmap, design scalable systems, and lay the technical foundations to support rapid growth.

This hands-on role involves critical technical decisions while remaining deeply involved in development. Join a fast-moving, engineering-first culture with autonomy and opportunities to shape product direction across multi-region, B2B SaaS deployments.

Qualifications

10+ years backend software engineering experience with architectural ownership.
Expertise in TypeScript, Node.js and PostgreSQL.
Strong AWS experience including serverless, containers and IaC.
Experience building and scaling multi-tenant B2B SaaS platforms.
Solid understanding of distributed systems and event-driven microservices.
Experience with ETL/ELT, data modelling and enterprise integrations.
Knowledge of SOC 2 or ISO 27001 security/compliance frameworks.

Responsibilities

Own the backend architecture and drive the technical roadmap.
Design and build scalable, data-intensive SaaS platforms.
Develop robust data models, APIs and enterprise integrations.
Architect event-driven systems, data ingestion pipelines and distributed services.
Evolve AWS infrastructure using serverless and containerised technologies.
Design secure, reliable multi-region infrastructure supporting international operations.
Establish engineering best practices across performance, testing, security and observability.
Collaborate with senior technical leadership and influence key product decisions.