Full-Stack Tech Lead: AI-First, Hands-On & Scalable

The ECA International Group; Greater London; Hybrid; GBP 90,000 - 120,000; Full time

Benefits offered by this job

Annual salary £90,000-£120,000

Enhanced Stakeholder Pension

25 days annual leave

Health, Life Insurance + EAP

Eligible for Annual Bonus Scheme

Long Service Awards

Cycle to Work Scheme

Flexible/hybrid Work Environment

Job summary

The ECA International Group is seeking a hands-on Full Stack Tech Lead to own core, multi-tenant SaaS foundations, mentor engineers, and shape architectural direction while remaining close to code.

You will work across identity, access, tenant isolation, and platform services, using Node.js, TypeScript/JavaScript, React, and AI‑first approaches to improve delivery. Lead Agile practices and drive impactful decisions.

Qualifications

• 8+ years of software engineering experience.
• Hands-on with Node.js/React/TypeScript stack.
• Experience building multi-tenant SaaS platforms.
• Identity and access management experience (SSO/OIDC/SAML).

Responsibilities

• Lead and mentor engineers while staying close to the code.
• Own technical direction and set what good engineering looks like.
• Architect scalable, maintainable multi-tenant solutions.
• Collaborate with Product and Delivery to turn requirements into technical solutions.
• Provide accurate estimates and drive delivery when blocked.

Skills

Node.js

TypeScript/JavaScript

React

SQL/NoSQL

CSS

Tools

AWS

PostgreSQL

GraphQL

Terraform

Playwright

C#/.NET Core

Job description

The ECA International Group is seeking a hands-on Full Stack Tech Lead to own core, multi-tenant SaaS foundations, mentor engineers, and shape architectural direction while remaining close to code.

You will work across identity, access, tenant isolation, and platform services, using Node.js, TypeScript/JavaScript, React, and AI‑first approaches to improve delivery. Lead Agile practices and drive impactful decisions.