Senior Full-Stack Lead: C#/.NET & Next.js Expert

iForce Connect; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

iForce Connect in London is seeking a Senior/Lead Full Stack Engineer to drive high‑impact, scalable web applications. You will own significant backend services in C#/.NET and frontend work in Next.js/React, with a focus on performance and reliability.

You’ll deploy and manage apps on Google Cloud Platform and actively participate in agile ceremonies. You will mentor junior developers, contribute to architectural decisions, and collaborate with product owners to translate business needs into

Qualifications

• 5+ years of professional software development, with at least 2 years in Senior/Lead Full Stack.
• Expertise in C# and the .NET framework for backend services and APIs.
• Strong proficiency with Next.js and React for modern web apps.
• Experience deploying, managing, and troubleshooting applications on Google Cloud Platform.
• Proven ability to work in a structured Agile development environment.
• Excellent problem-solving, architectural thinking, and writing clean, maintainable code.
• Fluency in Russian to communicate with core team members and stakeholders.

Responsibilities

• Lead the design and implementation of scalable features across the full stack using C#/.NET and Next.js/React.
• Architect and optimise backend APIs, microservices, and data models.
• Develop responsive, accessible user interfaces with SSR/SSG optimised for UX.
• Manage deployment, monitoring, and scaling on Google Cloud Platform services.
• Participate in Agile ceremonies and provide technical leadership and code reviews.
• Mentor junior and mid-level developers to foster engineering excellence.
• Collaborate with Product Owners to translate business requirements into solutions.

Skills

C# / .NET

Next.js / React

GCP

Agile

Architectural thinking

Code quality

Russian language

Tools

Terraform

Docker

Kubernetes

Job description

iForce Connect in London is seeking a Senior/Lead Full Stack Engineer to drive high‑impact, scalable web applications. You will own significant backend services in C#/.NET and frontend work in Next.js/React, with a focus on performance and reliability.

You’ll deploy and manage apps on Google Cloud Platform and actively participate in agile ceremonies. You will mentor junior developers, contribute to architectural decisions, and collaborate with product owners to translate business needs into