Tech Lead (.NET, Java, Node.Js)

Arrows Group Professional Limited; Greater London; On-site; GBP 99,000 - 121,000; Full time

Job summary

Arrows Group Professional Limited is seeking a Tech Lead to drive delivery of complex .NET and Java platforms in London. You will own architecture, delivery and production readiness while mentoring engineers.

You’ll lead a cross-functional team, build backend systems in .NET or Java with frontend in JavaScript/TypeScript, and take DevOps ownership including CI/CD and IaC. Salary up to £110k.

Qualifications

• Strong hands-on back-end in .NET or Java.
• Front-end experience in JavaScript/Node/TypeScript.
• Lead-level experience or Staff Engineer setting technical direction.
• Experience owning the DevOps lifecycle and IaC.

Responsibilities

• Lead a cross-functional team end-to-end delivery.
• Build back-end systems in .NET or Java with front-end in JS/TS.
• Own DevOps lifecycle: CI/CD, IaC, testing and production monitoring.
• Mentor engineers and raise engineering standards in client teams.

Skills

.NET

Java

JavaScript

TypeScript

Node.js

DevOps

Team leadership

Architecture ownership

Tools

Terraform

CI/CD tooling

Job description

Tech Lead - .NET - London - paying up to £110k

The Company

Our client places engineers directly inside client teams to deliver modernisation, cloud and product work. Their clients range from regulated financial services to high-growth consumer businesses. Because of new client demand, they're looking to add experienced Lead Engineers to the team.

The Role

You’ll lead a engineering team. You’ll own delivery from architecture through to production. The work varies from project to project, from complex regulated platforms to high-scale digital products and Legacy modernisation.

Key Responsibilities

• Lead a cross-functional team Embedded with a client, owning delivery outcomes end to end
• Build Back End systems in .NET or Java, with real Front End delivery in JavaScript, Node or TypeScript
• Own the DevOps life cycle: CI/CD pipelines, infrastructure-as-code, automated testing and production monitoring
• Act as a trusted technical voice with client stakeholders while staying hands‑on with the code
• Mentor engineers and bring strong engineering standards into client teams

What You’ll Bring

• Strong hands‑on Back End experience in .NET or Java, plus solid Front End experience in JavaScript, Node or TypeScript
• Proven DevOps ownership: CI/CD, Terraform or similar IaC, and a strong testing discipline
• Experience in Lead‑level roles owning a team and delivery outcomes, or Staff Engineer experience setting technical direction