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.