4Bell Technology

Job Description

Responsibilities

Backend & Platform

• Build, enhance, and scale core platform capabilities in C#/.NET
• Define architecture, design, and develop new backend features and services
• Design and implement common APIs following architecture guidelines and best practices
• Design and build high-availability, high-quality database systems
• Optimize performance, reliability, and scalability using modern tooling and techniques
• Monitor core platform performance and proactively propose improvements
• Ensure backend solutions are secure, stable, scalable, and efficient

Front-End & UI

• Develop responsive, accessible, and high-performing user interfaces using React and TypeScript
• Collaborate closely with UX/UI designers to translate designs into production-ready implementation
• Integrate front-end applications with REST/GraphQL APIs, collaborating on API contract design
• Maintain front-end quality through testing, reviews, and best practices

Cross-Cutting & Team

• Work independently on solutions and be accountable for time and quality commitments
• Participate actively in sprint planning, technical design discussions, and continuous improvement initiatives
• Coach and mentor junior engineers across backend and front-end disciplines
• Act as an advisor to product owners on technical feasibility and delivery estimates
• Communicate with customers to analyze and resolve product defects or support major implementations
• Stay up to date with developments across cloud, backend, front-end, and AI-assisted engineering

Requirements

Core Requirements

• 6+ years of professional software development experience
• Strong expertise in .NET (C#) and SQL, with a focus on backend/API development
• Commercial experience with modern UI frameworks, such as React, Angular and VueJs
• Solid knowledge of TypeScript and modern JavaScript (ES6+)
• Experience designing and consuming REST and/or GraphQL APIs
• Experience writing and maintaining automated tests (unit, integration, and/or UI)
• Strong understanding of Clean Code, SOLID principles, and design patterns
• Experience working on distributed, cloud-based systems
• Excellent debugging skills and strong root-cause analysis capabilities
• Understanding of secure coding principles and best practices
• Fluency in English

Cloud & DevOps

• Experience with cloud native technologies
• Experience delivering containerized solutions (Docker)

Nice-to-Have Skills

• University degree in Computer Science, Engineering, or a related field
• Experience with GitHub Copilot or similar AI developer tools
• Experience with UI component libraries (such as MUI Base, MUI Core, Radix UI, etc.)
• Understanding of web accessibility standards (WCAG)
• Experience with observability platforms (e.g. DataDog) and structured logging
• Exposure to CI/CD tooling such as Kustomize, ArgoCD