Senior Lead Engineer - Full Stack - Node & React

Own architecture decisions for complex systems, documenting and communicating trade-offs through design reviews and Architecture Decision Records (ADRs).

Shape subsystem and platform-level architecture aligned with REA’s long-term technical strategy.

Evaluate and articulate trade-offs across performance, reliability, security, cost, and maintainability.

Design and evolve APIs, services, and data flows that scale across teams and domains.

Design or contribute to event-driven and asynchronous architectures; experience with streaming platforms (e.g. Kafka) is a plus.

Own production systems end-to-end, including reliability, scalability, performance, observability, and technical debt management.

Own application performance across the stack by identifying bottlenecks, driving optimisations, and ensuring systems meet latency and scalability targets.

Design and operate containerized workloads using Docker and Kubernetes in production environments.

Ensure systems are observable, resilient, and designed for safe failure and recovery.

Champion continuous improvement in operational practices and developer experience.

Contribute to planning and sequencing of work, helping teams balance scope, quality, and delivery timelines.

Identify cross-team dependencies and technical risks early, unblocking teams through sound technical decisions.

Partner closely with Engineering Managers and delivery leads to improve predictability without compromising quality.

Mentor and coach engineers through design reviews, technical discussions, and hands-on guidance.

Raise the technical bar across squads by reinforcing strong engineering practices and architectural consistency.

Influence without formal authority, earning trust through technical credibility and clarity of thinking.

Proven experience operating as a senior contributor on complex, production systems.

Strong hands-on experience with modern full-stack technologies, including React, JavaScript, TypeScript, Node.js.

Experience designing and operating systems on AWS and/or GCP, including cloud-native services.

Strong experience with SQL databases and NoSQL databases (PostgreSQL, DynamoDB).

Hands-on experience with AWS RDS or other managed relational database services.

Strong understanding of CI/CD principles, including trunk-based development, automated testing, progressive delivery, and rollback strategies.

Experience designing and operating containerized systems using Docker and Kubernetes.

Demonstrated ownership of system design, performance, reliability, and long-term maintainability.

Ability to clearly communicate architectural decisions, trade-offs, and technical direction to diverse stakeholders.

Strong mentoring mindset with the ability to elevate others without direct people management responsibility.

Comfort working in a fast-moving environment where priorities evolve and pragmatic trade-offs are required.

Experience with event-driven architectures, streaming platforms (e.g. Kafka), or large-scale asynchronous systems.

Exposure to platform engineering or shared services models.

Experience evolving legacy systems while delivering new capabilities.

Work on globally impactful products used by millions.

Be part of a growing global engineering organization with strong technical standards.

Influence systems, teams, and culture from an early stage.

Collaborate closely with global leaders and technologists.

Grow as a people leader, delivery owner, and technology leader.

Our values are at the core of how we operate, treat each other, and make decisions. We believe that how we work is equally important as what we do to achieve our goals. This commitment is at the heart of everything we do, from the way we interact with colleagues to the way we serve our customers and communities.