Senior C#/.NET Engineer — Remote, Growth & AI Focus

Threecolts LLC; United Kingdom; Hybride; GBP 99 000 - 121 000; Plein temps

Avantages offerts par ce poste

Salary: £110,000 per year

25 days PTO

Offsites for the company

Regular rate reviews and bonus

Fully remote/hybrid working

Résumé du poste

Threecolts is seeking an experienced software engineer to own features across Inventory Lab’s C#/.NET systems, delivering them from design to production.

You will design, develop, and maintain backend services and APIs in C#/.NET, work with ASP.NET Core, and build front-end UI with Vue.js/TypeScript. The role emphasizes reliability, scalability, and collaboration with Product, QA, and DevOps.

Qualifications

• 6–8+ years of professional software engineering experience.
• Strong proficiency in C# and experience building production-grade applications.
• Strong understanding of the .NET platform, including its runtime, libraries, and application development ecosystem.
• Experience developing web applications and backend services using ASP.NET and ASP.NET Core.
• Experience developing modern web applications using Vue.js or React, including component-based architecture and reusable components.
• Experience building responsive, accessible user interfaces and integrating front-end applications with REST APIs, and maintaining backend services.
• Solid understanding of system design, application architecture, and scalable software development patterns.
• Experience working with SQL databases, relational data models, and query optimization.
• Familiarity with cloud infrastructure: AWS or Azure.
• Experience debugging production systems, investigating root causes, and resolving issues independently.
• Comfortable working with Git, code reviews, automated testing, and collaborative development workflows.
• Ability to work effectively within an existing codebase and improve code quality without over-engineering.

Responsabilités

• You’ll take ownership of features across Inventory Lab’s C# and .NET-based systems, delivering them from initial design through to production.
• You’ll design, develop, and maintain clean, scalable backend services, APIs, and application components using C# and the .NET ecosystem.
• You’ll work with modern .NET technologies, including ASP.NET and ASP.NET Core, to build and maintain reliable, high-performance web applications and services.
• You’ll focus on writing maintainable, well-tested code that supports the product’s evolving requirements.
• You’ll develop and maintain front-end features using Vue.js and TypeScript, building responsive, intuitive, and maintainable user interfaces that integrate seamlessly with backend APIs.
• You’ll take ownership of full-stack features end to end, from designing backend services and data models to implementing front-end components, managing application state, and ensuring a consistent user experience.
• You’ll collaborate with Product, QA, and DevOps to deliver reliable, performant features across the entire application stack.
• You’ll operate independently within a defined scope, making sound technical decisions and balancing delivery speed with long-term quality.
• You’ll actively improve existing systems, debug production issues, identify root causes, and implement durable fixes.
• You’ll contribute to technical discussions, help evolve architecture within your domain, and raise engineering standards through thoughtful code reviews.
• Collaboration is key: you’ll work closely with Product, QA, and DevOps to deliver features and improvements that provide meaningful value to Inventory Lab customers.

Connaissances

C#

.NET

ASP.NET

ASP.NET Core

Vue.js

TypeScript

REST APIs

SQL databases

Git

Cloud: AWS/Azure

Outils

Git

REST APIs

AWS

Azure

Description du poste

Threecolts is seeking an experienced software engineer to own features across Inventory Lab’s C#/.NET systems, delivering them from design to production.

You will design, develop, and maintain backend services and APIs in C#/.NET, work with ASP.NET Core, and build front-end UI with Vue.js/TypeScript. The role emphasizes reliability, scalability, and collaboration with Product, QA, and DevOps.