Fullstack Architect

Experience: 15+ years

Location : India (All LTM locations)

Role Summary:

Lead the maintenance, production support, and modernization of business-critical applications. The role requires hands-on experience with legacy .NET Framework 4.x systems and modern .NET 8+ applications, along with strong CI/CD, security, and observability practices. The successful candidate will use Spec Kit-driven development and apply GitHub Copilot (GHCP) and approved GenAI accelerators responsibly.

Key Responsibilities

- Own application stability across production and non-production environments, including incident response, root-cause analysis, problem management, and service improvement.

- Maintain and support applications built on .NET Framework 4.x, including applicable ASP.NET MVC, Web Forms, Web API, WCF, Windows Services, IIS, and Entity Framework components.

- Design, build, and modernize applications using .NET 8+ and later supported .NET releases, including ASP.NET Core, REST APIs, and Entity Framework Core.

- Assess legacy architecture, dependencies, hosting, and technical debt; develop phased modernization and migration plans that minimize business disruption.

- Plan and deliver upgrades and interoperability between legacy .NET Framework and modern .NET applications.

- Build and maintain CI/CD pipelines using GitHub Actions and Azure DevOps (ADO) Pipelines, including automated builds, tests, deployments, approvals, and rollback procedures.

- Improve application security through secure design and coding, access controls, secrets protection, and vulnerability remediation. Use Coverity and approved security processes to identify and address code vulnerabilities.

- Implement and maintain observability using Datadog or New Relic, including application performance monitoring, logs, distributed tracing, dashboards, and actionable alerts.

- Use BlueOptima to review engineering productivity and code-quality trends and identify opportunities to improve delivery.

- Apply Spec Kit-driven development to modernization and feature work: define specifications, create plans and task breakdowns, and validate implementation against requirements and acceptance criteria.

- Use GHCP and approved GenAI accelerators for code understanding, refactoring, test generation, and documentation, with human review for correctness, security, licensing, and data-handling compliance.

- Coordinate with business stakeholders, product owners, security, infrastructure, and engineering teams; mentor developers and guide technical decisions.

Mandatory Skills and Experience

- 15+ years of experience in software engineering, application maintenance, production support, or modernization.

- Strong hands-on experience with .NET Framework 4.x and enterprise applications built on legacy ASP.NET technologies.

- Hands-on experience with .NET 8+ / modern .NET, ASP.NET Core, REST APIs, and Entity Framework Core.

- Experience supporting applications hosted on IIS and Windows Server and troubleshooting across application, database, integration, and infrastructure layers.

- Experience with legacy-to-modern .NET migration, upgrade planning, or coexistence patterns.

- Strong SQL and relational database skills, preferably with SQL Server.

- Experience with GitHub Actions and Azure DevOps Pipelines** for CI/CD, automated testing, and controlled releases.

- Experience with Datadog or New Relic for monitoring, alerting, and production troubleshooting.

- Hands-on experience with Coverity for static application security testing (SAST), including reviewing findings, prioritizing issues, and coordinating remediation.

- Knowledge of application security, OWASP risks, authentication and authorization, secure configuration, and vulnerability remediation.

- Experience with incident and problem management, technical documentation, stakeholder communication, and mentoring.

- Practical experience using GitHub Copilot or a comparable GenAI coding assistant, including validating generated code.

- Experience with specification-driven development: translating business needs into specifications, implementation plans, task breakdowns, and testable acceptance criteria.

Secondary / Preferred Skills

- Hands-on experience with GitHub Spec Kit, including its specify, plan, tasks, and implementation workflow.

- Experience with BlueOptima or a similar engineering productivity and code analytics platform.

- Azure experience, including Azure App Service, Azure Functions, Key Vault, Azure Monitor, and Application Insights.

- Experience with Docker, Kubernetes, cloud-native architecture, API management, messaging, or microservices.

- Familiarity with OpenTelemetry, Prometheus, Grafana, distributed tracing, and service-level objectives.

- Experience with performance testing, resilience engineering, and disaster recovery planning.

- Exposure to GenAI-assisted engineering workflows beyond code completion, subject to organizational security and governance controls.