Senior Software Engineer - GCP & React

Fulcrum Digital is looking for a Senior Software Engineer to anchor the technical direction of a full-stack product team building cloud-native applications on Google Cloud Platform. This is a hands-on leadership role: you will architect and build across the stack in Java/Python and React, set engineering standards, and mentor a squad of engineers while staying close to the code.

You will work alongside product, design and client stakeholders to translate business goals into resilient, scalable solutions — and act as a strategic technical partner rather than an order-taker. This role suits an engineer who enjoys owning outcomes end to end, from architecture through to production reliability.

Technical leadership & architecture

• Solution design — Own the end-to-end architecture of cloud-native applications on GCP, balancing performance, cost, security and maintainability.

• Standards — Design, develop, and optimize queries and analytics using BigQuery for reporting and data insights. Manage deployments, monitoring, and troubleshooting in Google Cloud Platform (GCP).

• Decisions — Make and document key technical decisions, weighing trade-offs transparently for stakeholders.

Hands-on delivery

• Full-stack build — Design and build backend services and APIs in Java (Spring Boot)/Python, and modern, responsive front-ends in React.

• Cloud delivery — Deploy, monitor and optimise workloads on GCP using managed services, containers and CI/CD pipelines. Work with GCP services such as Cloud Run, Cloud Functions, Cloud Storage, Pub/Sub, API Gateway, BigQuery , or equivalent services based on project requirements.

• Quality — Contribute production-quality code, conduct code reviews, and uphold test coverage and quality gates.

People & collaboration

• Mentorship — Mentor and grow a squad of mid and junior engineers; provide technical coaching and career guidance.

• Stakeholders — Partner with product owners, designers and client stakeholders to shape scope and sequence delivery.

• Delivery — Support estimation, sprint planning and risk management as part of an agile delivery team.

Requirements

We expect a strong, hands-on engineer with a proven track record of leading full-stack teams in a cloud-first environment.

Area

What we're looking for

Experience

8+ years in software engineering, including 2+ years in a technical lead or senior lead capacity.

Java / Python (Backend)

Deep expertise in Java and Spring Boot/Python; RESTful API design, microservices, and strong understanding of concurrency, JVM performance and testing.Web Components

React (Frontend)

• Strong hands-on experience with React.js .
• Good knowledge of JavaScript/TypeScript, HTML5, and CSS3 .
• Experience with React hooks, state management, reusable components, and API integration.
• Understanding of responsive web design.
• Experience with frontend-testing frameworks is preferred.

Google Cloud (GCP)

Practical experience with GCP services such as GKE, Cloud Run, Cloud Functions, Pub/Sub, Cloud SQL / Firestore, and IAM. App Engine (application deployment, scaling, monitoring) Cloud Datastore / Firestore (data modeling, indexing, query optimization) BigQuery (ETL, complex queries, performance tuning)

DevOps & CI/CD

Containerisation (Docker), Kubernetes, and CI/CD pipelines; infrastructure-as-code (Terraform) is a strong plus.

Architecture

Demonstrated ability to design scalable, secure, distributed systems and to reason about trade-offs.

Ways of working

Agile / Scrum delivery, Git-based workflows, and a test-first, quality-driven mindset.

Leadership

Evidence of mentoring engineers, leading design discussions, and communicating clearly with technical and non-technical audiences.

• GCP Professional certification (Cloud Architect or Cloud Developer).

• Experience with event-driven or serverless architectures at scale.

• Exposure to observability tooling (Cloud Monitoring, Prometheus, Grafana, OpenTelemetry).

• Familiarity with domain-driven design and API-first / contract-first development.

• Prior experience in a consulting or client-facing delivery environment.

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field — or equivalent practical experience.