First seen by Alion on Nov 3, 2026.
Technology: React.js, ASP.NET Core, C#.NET, Microservices, REST APIs, SQL Server, AWS, Docker, AI & Agile/Scrum.
Job Summary:
We are looking for an experienced Senior Full Stack .NET Architect with strong expertise in designing, developing, and maintaining scalable enterprise applications using React.js, ASP.NET Core, C#, and microservices architecture.
The ideal candidate should have experience delivering end-to-end software solutions, building secure RESTful APIs, implementing workflow automation, and modernizing legacy applications. The candidate should demonstrate technical leadership, strong problem-solving skills, and the ability to mentor junior developers while collaborating with cross-functional Agile teams.
Experience with AI-assisted software development tools, Spec-Driven Development (SDD), and Test-Driven Development (TDD) is highly desirable.
Key Responsibilities:
1. Software Development & Architecture
- Design, develop, and maintain scalable full-stack applications using React.js, ASP.NET Core, and C#.
- Build secure RESTful APIs and microservices supporting enterprise-scale business operations.
- Design and implement end-to-end workflows covering application, approval, renewal, and compliance monitoring.
- Develop reusable frontend components and maintainable backend services.
- Modernize legacy applications by migrating monolithic systems to microservices architecture.
- Optimize API performance, database queries, and application responsiveness.
2. Technical Leadership & Collaboration
- Collaborate with product managers, business analysts, designers, and engineering teams to define technical solutions.
- Translate business and operational requirements into scalable software capabilities.
- Participate in architecture discussions, technical design reviews, and solution planning.
- Mentor junior developers and interns, promoting engineering best practices.
- Conduct code reviews and ensure adherence to coding standards and software development principles.
3. AI-Assisted & Modern Development Practices
- Leverage AI-assisted development tools such as Claude Code to accelerate software development.
- Apply Spec-Driven Development (SDD) practices to improve requirement clarity and implementation quality.
- Implement Test-Driven Development (TDD) and automated testing strategies.
- Identify opportunities to improve engineering productivity through AI-powered development workflows.
4. Testing, Quality & Production Support:
- Develop automated unit, integration, and end-to-end tests.
- Troubleshoot production issues, perform root cause analysis, and implement permanent fixes.
- Ensure application security, reliability, scalability, and maintainability.
- Monitor application performance and resolve technical bottlenecks.
- Deliver production fixes within agreed service-level agreements (SLAs).
5. Agile Delivery:
- Participate in sprint planning, daily stand-ups, sprint reviews, and retrospectives.
- Estimate development efforts and communicate progress, risks, and dependencies.
- Work closely with cross-functional teams to deliver features within agreed timelines.
- Contribute to continuous improvement of engineering processes.
Strong experience in enterprise application development using the Microsoft technology stack.
Required Skills:
- 12+ years of strong experience in enterprise application development using the Microsoft technology stack.
- Experience in financial services, investment platforms, cloud infrastructure, or enterprise workflow automation.
- Experience working in large Agile development teams.
- Strong analytical, debugging, communication, and technical leadership skills.
- Ability to independently drive technical solutions from requirement analysis through production deployment
Key Experience Areas:
- Enterprise workflow automation and compliance management systems.
- Financial investment platforms, including SPV investment solutions.
- Cloud and datacentre management platforms.
- Microservices modernization and legacy application migration.
- Kafka-based event-driven integrations.
- AI-assisted and specification-driven software engineering.
Skills
Workflow Automation, MongoDB, ASP.NET Core, DevOps, AWS, Artificial Intelligence, Full Stack Development, ASP.NET MVC, .NET Core, .Net Framework, Microservices Design, ASP.NET, .Net Architecture, SQL Server, Event-Driven Architecture (EDA), Apache Kafka, Rest Apis, Docker, Backend Development, React.js

