Duration:
Initial 9-week build (1 Dec 2025 – 6 Feb 2026), followed by ~2 months of QA & maintenance
Engagement:
Full-time contract
Location:
Fully remote —
remote means anywhere
Working Hours:
UK collaboration hours (9:00–17:00 UK time)
Overview
The client seeks an experienced Senior Full-Stack JavaScript Engineer to join a high-velocity greenfield SaaS build. The role involves working with Tribes and the client on a confidential project (under NDA) for one of the world\'s top 10 global companies.
The engineer will help deliver a new platform that streamlines DV360 campaign creation and management, with a strong emphasis on YouTube advertising workflows. The solution integrates deeply with Google APIs, GCP services, and Structured Data Files (SDF).
This is a hands-on role for someone who thrives in fast-paced delivery environments and can produce production-ready code from day one.
Key Responsibilities
- Develop frontend features using
React
,
TypeScript
, and
, ensuring full compliance with
WCAG 2.1 AA
accessibility standards. - Build and maintain backend services in
, including secure and well-structured
REST APIs
. - Deploy and operate services using
GCP
(Cloud Run, Cloud Build, Secret Manager, Monitoring/Logging). - Contribute to architecture decisions for a scalable, secure, and high-availability platform.
- Collaborate closely with Tribes and the client\'s teams to refine requirements and deliver high-quality outcomes within tight deadlines.
- Support QA, debugging, and performance optimizations during and after the initial build.
- Ensure engineering best practices including code reviews, documentation, and adherence to accessibility and security standards.
Required Skills & Experience
Frontend
- React + TypeScript
- WCAG 2.1 AA accessibility compliance
Backend
- REST API development
Google Cloud Platform
- Cloud Run
- Cloud Build
- Secret Manager
- Cloud Monitoring & Logging
Nice to Have
Testing & Quality
- Playwright
- axe-core for accessibility testing
Infrastructure & DevOps
- VPC networking
- GCP Artifact Registry
- Terraform (IaC)
- CI/CD pipelines
- Security scanning (SAST/DAST)
Data & Caching
- Redis / Memorystore
- PostgreSQL / Cloud SQL
Advertising & Domain Knowledge
- DV360 or other advertising platforms
- YouTube campaign management
- Programmatic advertising concepts
Authentication
- OAuth2 / OIDC
- Okta
Project Timeline
- Phase 1:
1 December 2025 – 6 February weeks, fast-paced delivery) - Phase 2:
~2 months of QA and maintenance
Interview Process
- Submit CV via Tribes website
- HR interview
- Technical interview
- Technical assessment
- Final offer
About the Client
The role is delivered in partnership with Tribes for
the client
, a globally recognised organisation ranked among the world\'s top 10 companies. All client details remain confidential, and the project is fully under NDA.
Diversity, Equity & Inclusion
Tribes is committed to fostering a diverse, equitable, and inclusive environment. We welcome applicants from all backgrounds, experiences, and perspectives, and we ensure fair and unbiased hiring practices throughout the process.
