Fullstack Architect

LTM; Hyderabad, Pune District, Bengaluru; On-site; INR 3,000,000 - 4,200,000; Full time

Job summary

LTM in India is seeking a senior software engineering leader to oversee maintenance, production support, and modernization of mission-critical applications. You will work across legacy .NET Framework 4.x systems and modern .NET 8+ applications, focusing on CI/CD, security, and observability.

Expected to guide modernization while ensuring stability and governance across environments. The role emphasizes hands-on implementation, Spec Kit-driven planning, and judicious use of GenAI accelerators

Qualifications

• 15+ years of software engineering experience.
• Strong hands-on with .NET Framework 4.x and enterprise applications.
• Experience with .NET 8+ / ASP.NET Core, REST APIs, and EF Core.
• Experience supporting IIS and Windows Server deployments.
• Experience with legacy-to-modern .NET migration and upgrade planning.
• Strong SQL skills, preferably SQL Server.
• CI/CD experience with GitHub Actions and Azure DevOps Pipelines.
• Datadog or New Relic monitoring experience; incident troubleshooting.
• SAST tooling with Coverity and secure coding practices.
• GenAI-assisted engineering with GH Copilot and Spec Kit-driven development.

Responsibilities

• Own application stability across production and non-production environments, including incident response and RCA.
• Maintain and modernization of legacy .NET Framework 4.x apps and newer .NET 8+ apps.
• Plan upgrades and interoperability between legacy and modern .NET platforms.
• Build and maintain CI/CD pipelines using GitHub Actions and Azure DevOps, including automated builds, tests, deployments, and rollbacks.
• Improve security through secure design, access controls, secrets management, and vulnerability remediation.
• Implement and maintain observability with Datadog or New Relic, including dashboards and alerts.
• Use Spec Kit-driven development to translate requirements into plans, tasks, and acceptance criteria.
• Mentor developers and coordinate with business, security, infra, and product teams.

Skills

.NET Framework 4.x

.NET 8+/ASP.NET Core

IIS/Windows Server

SQL Server

CI/CD with GitHub Actions

Azure DevOps Pipelines

Security / SAST (Coverity)

Observability (Datadog/New Relic)

GenAI tools (GitHub Copilot)

Incident & Problem Management

Spec Kit-driven development

Mentoring / Stakeholder coordination

Tools

GitHub Actions

Azure DevOps Pipelines

Datadog

New Relic

Coverity

Spec Kit

Job description

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.