Tech Lead - Platform & AI-First SaaS Architect

The ECA International Group

Greater London

Hybrid

GBP 90,000 - 120,000

Full time

3 days ago
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Benefits offered by this job

Enhanced Stakeholder Pension
25 days annual leave
Health, Life Insurance + EAP Wellbeing
Annual Bonus Scheme
Long Service Awards
ClassPass Membership
Enhanced Family Leave
Personal development & training up to
Season Ticket Loan
Flexible/hybrid Work Environment
Cycle to Work Scheme
Free Eye Test

Job summary

The ECA International Group is seeking a Tech Lead - Capability to own the core platform foundations of a multi-tenant B2B SaaS offering. You’ll stay hands-on while guiding technical direction, mentoring engineers, and tackling cross‑platform challenges, including how an AI‑first engineering team operates.

You’ll work across shared platform foundations—identity, access management, tenant isolation, and scalable architecture—primarily with Node.js, TypeScript/JavaScript and React, contributing to

Qualifications

  • 8+ years' software engineering experience
  • Hands-on with Node.js, TypeScript/JavaScript, React
  • Experience designing scalable, multi-tenant SaaS platforms
  • Knowledge of identity and access management (SSO, OIDC, SAML, roles and permissions) is valuable

Responsibilities

  • Lead and mentor engineers while remaining close to the code
  • Own technical direction and help define what good engineering looks like
  • Architect scalable, maintainable solutions for a multi-tenant SaaS environment
  • Work with Product and Delivery to turn requirements into technical solutions
  • Give realistic estimates and challenge optimistic ones when needed
  • Lead Agile ways of working and drive continuous improvement
  • Establish best practices around architecture, testing and TDD
  • Explore AI usage across the software development lifecycle

Skills

Node.js
TypeScript/JavaScript
React
SQL/NoSQL
CSS

Tools

AWS
PostgreSQL
GraphQL
Terraform
Playwright
.NET Core / C#

Job description

The ECA International Group is seeking a Tech Lead - Capability to own the core platform foundations of a multi-tenant B2B SaaS offering. You’ll stay hands-on while guiding technical direction, mentoring engineers, and tackling cross‑platform challenges, including how an AI‑first engineering team operates.

You’ll work across shared platform foundations—identity, access management, tenant isolation, and scalable architecture—primarily with Node.js, TypeScript/JavaScript and React, contributing to

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