Job description

• Full Time
• Remote

About the Role

Company is seeking a highly experienced ASP.NET Lead Architect / Senior Developer to join our team. This role is ideal for a deeply technical professional with proven experience in designing, optimizing, and maintaining high-performance systems within the .NET 5 and Azure ecosystem. You will play a critical role in ensuring scalability, cost efficiency, and top-tier performance of our technology stack while leading the development of new features and delivering timely bug fixes.

This is a highly technical role, requiring advanced problem-solving skills, attention to detail, and the ability to mentor and guide peers in best practices.

Responsibilities

• Architecture & Optimization
• Revamp and fine-tune our ASP.NET web application stack for performance, cost effectiveness, and scalability.
• Design and optimize high-performance API services, proxy technologies, and multi-tenant database infrastructures.
• Development
• Build new features across backend, web, and mobile applications.
• Ensure clean, maintainable, and scalable code with strong adherence to standards.
• Support legacy Xamarin components where necessary.
• Maintenance & Operations
• Quickly troubleshoot and fix bugs.
• Oversee CI/CD pipelines to ensure smooth deployments.
• Work with monitoring and observability tools to maintain system health.
• Collaboration
• Collaborate closely with cross-functional teams (product, QA, DevOps).
• Communicate clearly in English (spoken and written) with stakeholders across geographies.
• Handle “overly confident developers” tactfully, ensuring technical transparency and simplicity.

Tech Stack

Programming Languages

• C# / .NET 5 / ASP.NET Core – Core backend services, API layer, and daemon services
• TypeScript + Angular – Shopify embedded apps, admin portal, CRM features
• React Native (JavaScript/TypeScript) – Mobile apps (iOS/Android, offline capabilities)
• Liquid – Shopify storefront & embedded UI integration
• XML – Domain modeling + code generation workflows
• SQL (T-SQL) – Azure SQL Server (master + tenant databases)
• NoSQL (CosmosDB / MongoDB API) – Operational data, caching, and sync storage

Frameworks & Libraries

• .NET 5 – Services and APIs
• Xamarin.Forms – Legacy mobile components
• Entity Framework Core – ORM for SQL backends
• Mermaid – C4 diagrams (context/container/component)
• Custom XML CodeGen Tools – Auto-generating scaffolding

Platforms & Infrastructure

• Azure Cloud – Core hosting environment
• Azure SQL Database – Master + tenant-sharded stores
• Azure CosmosDB – JSON/NoSQL operational store
• Azure Blob Storage – File storage (documents, exports, results)
• Azure Service Bus – Messaging, event routing, background jobs
• Shopify – E-commerce storefront + embedded integration
• SendGrid – Transactional/notification emails
• Klaviyo – Marketing automation and campaigns
• Calendly – Scheduling integration
• USPS API – Label generation, shipping automation
• Twilio – SMS messaging and alerts

Observability & Ops

• Logging/Tracing – Azure Monitor + custom observability layer
• Metrics – Prometheus-style metrics capture integrated with .NET services
• Backup/Restore – Azure SQL backups + Mongo dump strategies
• CI/CD – Git-based pipelines with automated deployments

Required Qualifications

• 15+ years of professional development experience in complex systems.
• Deep expertise in ASP.NET Core, .NET 5, and Azure.
• Strong understanding of multi-tenant architectures, performance optimization, and cost-effective scaling.
• Demonstrated ability to lead technical initiatives and mentor other developers.
• Advanced English (spoken and written): capable of leading meetings, writing documentation, and engaging in negotiations.
• Proven track record of delivering high-quality, scalable systems.

Soft Skills

• Trustworthy, respectful, and honest.
• Hardworking and committed to delivery.
• High attention to detail.
• Collaborative, not difficult to work with, and effective in managing differing personalities within the team.

Interview Process

• 2–3 interview stages, including technical and behavioral assessments.
• Final decision made by Company’s senior leadership in coordination with the hiring manager.