Lightning Minds Inc.

Compensation

Full Description

Senior Full-Stack Engineer (.NET, C#, React/Angular) Location: Remote Department: Engineering Role Overview We are seeking a highly skilled Senior Full-Stack Engineer to design, build, and maintain complex, mission-critical features across our application stack. This role requires deep expertise in backend API development using .NET/C# combined with strong proficiency in modern front-end frameworks (React or Angular). The ideal candidate is experienced in microservices architecture, has contributed to breaking down monoliths, and is comfortable working across cloud-based, distributed systems. You will play a key role in modernizing our platform, improving performance, and building new capabilities for a data-rich healthcare product. Key Responsibilities Full-Stack Engineering Design, develop, and maintain backend APIs using .NET 6+/7+ and C#. Build high-quality, responsive front-end interfaces using React or Angular. Ensure seamless integration between front-end applications, backend services, and data stores. Implement reusable UI components, front-end state management, and modern UX patterns. Microservices & Architecture Modernization Contribute to the decomposition of a monolithic .NET application into modular microservices. Develop new microservices aligned with domain-driven design and enterprise integration patterns. Implement service-to-service communication (REST, gRPC, messaging queues). Define and enforce API contracts, service boundaries, interface definitions, and operational readiness. Cloud & DevOps Integration Build cloud-ready services on Azure using App Services, Functions, Storage, Key Vault, etc. Work with DevOps engineers to integrate code into CI/CD pipelines (Azure DevOps Pipelines, GitHub Actions). Ensure services are scalable, resilient, observable, and adhere to best practices for logging and monitoring. Database & Data Layer Work with SQL Server/Azure SQL, including: o Writing performant queries o Designing schema and data models o Optimizing read/write paths for large datasets Experience with Entity Framework or equivalent ORM frameworks. Quality, Testing & Performance Write and maintain unit tests, integration tests, and API tests. Partner closely with QA and automation engineers to ensure testability and quality. Performance-tune both front-end and backend components as needed. Collaboration & Leadership Collaborate with product managers, architects, QA, and other engineers to build end-to-end features. Provide mentorship and technical guidance to mid/junior developers. Participate in code reviews, design discussions, and architecture evaluations. Required Skills & Qualifications Core Technical Skills 6 10+ years of professional software engineering experience. Strong expertise in: o C#, .NET Core / .NET 6+ o REST API development o React or Angular Strong experience working across both front-end and backend layers. Hands-on experience with: o Azure App Services o Azure Functions o Azure SQL o Azure Storage o Azure DevOps (Repos, Pipelines) Microservices / Architecture Experience Experience designing, building, or migrating systems toward microservices. Understanding of: o Domain-driven design (DDD) o Event-driven architecture o API gateway patterns o Saga/transaction patterns Experience with message brokers (Azure Service Bus, Kafka, RabbitMQ) is a plus. Front-End Expertise Strong proficiency in one modern JavaScript framework: o React (preferred) o Angular (preferred) Experience with: o TypeScript o Component libraries o State management (e.g., Redux, NgRx, Signals) o Unit testing (Jest, React Testing Library, Jasmine/Karma) Backend Expertise Deep knowledge of ASP.NET Core Experience with: o Clean architecture o Repository & service patterns o Dependency injection o Authentication/authorization (OAuth2, JWT, OpenID Connect) o API versioning Data & Testing Skills Strong experience with SQL Server / Azure SQL. Ability to write optimized queries and tune performance. Experience with unit testing, integration testing, and test automation best practices. Soft Skills Excellent communication and cross-functional collaboration skills. Ability to operate in a fast-paced environment with high accountability. Strong problem-solving skills and a bias toward action. Ability to mentor junior engineers and uphold engineering standards. Preferred Qualifications Experience in healthcare, oncology, cancer registries, or any regulated domain (plus but not required). Experience modernizing legacy .NET systems into modular, scalable services. Experience with containerization (Docker, Kubernetes), even at a conceptual level. Familiarity with performance optimization for large datasets and enterprise workflows.