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
Next.js
, ensuring full compliance with
WCAG 2.1 AA
accessibility standards.
Build and maintain backend services in
Node.js
, 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
Next.js
WCAG 2.1 AA accessibility compliance
Backend
Node.js
REST API development
Google Cloud Platform
Cloud Run
Cloud Build
Secret Manager
Cloud Monitoring & Logging
DV360 or other advertising platforms
YouTube campaign management
Programmatic advertising concepts
Authentication
OAuth2 / OIDC
Okta
Project Timeline:
Phase 1:
1 December 2025 - 6 February 2026 (9 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.