Senior .NET Full-Stack Technical Lead

Name: Naga Shiva Prasad Sammeta

Mobile: 201-***-****

Email: *************@*****.***

LinkedIn: https://www.linkedin.com/in/naga-shiva-prasad-sammeta-2b318639/

PROFESSIONAL SUMMARY

Senior .NET Full Stack Technical Lead / Application Development Technical Lead with 16+ years of experience designing, developing, modernizing, and supporting enterprise-scale applications across banking, financial services, and other mission-critical environments.

Full-stack depth across C#, .NET 8/.NET Core, ASP.NET MVC/Web API, Entity Framework, LINQ, and modern front ends (Angular 18, AngularJS, React, Bootstrap, TypeScript), building and integrating RESTful APIs, SOAP services, and microservices.

Technical leadership track record: leads distributed onshore/offshore teams of up to 15 engineers, owning architecture, code reviews, mentoring, and Agile delivery on platforms supporting 1,000+ end users.

Cloud and DevOps practitioner across Microsoft Azure (App Services, Functions, AKS, API Management, Azure DevOps) and AWS (ECS), with Docker, OpenShift, Jenkins, Harness and release automation (uDeploy, RLM), paired with production observability via Splunk, AppDynamics, and Azure Monitor.

Early and hands-on adopter of AI-assisted engineering (GitHub Copilot, Devin.ai) — using AI tools daily for development, code generation, debugging, and bug fixes — and of Playwright for automated regression testing.

Designed and implemented AI agents for automated reporting, leveraging leading LLMs to generate and streamline business/financial reports, reducing manual reporting effort.

Extensive financial-services domain expertise supporting Citibank/Citi enterprise applications, including forecasting, accruals, resource planning, contract management, approval workflows, and enterprise content management.

Strong background in enterprise application modernization — transforming legacy .NET platforms into scalable, cloud-enabled solutions — paired with deep SQL Server and Oracle expertise (database design, stored procedures, query optimization, performance tuning).

Experienced implementing enterprise application security — OAuth 2.0, JWT, Single Sign-On (SSO), authentication, authorization, and secure API integration.

Deep enterprise data/content-management background: led migrations of 7M+ documents and 9M+ records across Documentum, Oracle, and SQL Server platforms, and automated financial workflows saving ~20 hours/month in manual effort.

Full-cycle SDLC ownership — requirements through production support — collaborating with business stakeholders, product owners, architects, QA, and DevOps teams under Agile/Scrum delivery (sprint planning, backlog refinement, code reviews, defect resolution).

Well suited for Lead .NET Developer, .NET Technical Lead, .NET Solution Architect, Full-Stack .NET Architect, and Enterprise Application Architect engagements.

Technical Skills:

Category

Technical Skills

Programming Languages

C#, Java, JavaScript, TypeScript, SQL

.NET Stack

.NET 8, .NET Core, .NET Framework 4.x, ASP.NET Core, ASP.NET MVC, ASP.NET Web API, Web API 2, WCF, WPF, Entity Framework, LINQ, ADO.NET

Frontend Technologies

Angular 18, AngularJS, React, TypeScript, JavaScript, HTML5, CSS3, Bootstrap, AJAX, jQuery

API & Architecture

RESTful APIs, SOAP, Microservices, Service-Oriented Architecture, Event-Driven & Asynchronous Integration

Cloud & Architecture

Microsoft Azure (App Services, Functions, AKS, API Management), Azure DevOps, AWS (Amazon ECS), Docker, OpenShift, Cloud-Native Deployment

DevOps & CI/CD

Jenkins, Harness, GitHub, Git, Bitbucket, uDeploy, RLM, Pipeline-as-Code, Kafka, uDeploy, RLM, Release on Demand, Open Shift

Application Security

OAuth 2.0, JWT, Single Sign-On (SSO), Authentication, Authorization, Secure API Integration

Data & Reporting

SQL Server, Oracle, Stored Procedures, Query Optimization, SSRS, RDLC Reporting

Testing & Quality

Playwright, Unit & Integration Testing, UI Regression Automation

Monitoring

Splunk, AppDynamics, Azure Application Insights, Azure Monitor, Production Troubleshooting, Performance Tuning

Enterprise Content Management

Documentum, Documentum DFC, DQL, Workflow Manager, Administrator, Application Builder, WDK, WebTop, Records Manager, SharePoint, MOSS

AI-Assisted Engineering

GitHub Copilot, Devin.ai, LLM-Based Reporting Agents, Generative & Agentic AI Development Workflows, Daily AI-Assisted Development & Debugging

Leadership & Delivery

Technical Leadership, Solution Design, Architecture, Requirements Analysis, Distributed Team Leadership, Mentoring, Stakeholder Management, Production Support

Development Methodologies

Agile, Scrum, SDLC, Continuous Integration, Continuous Delivery, Release Management

PROFESSIONAL EXPERIENCE

Citibank N.A. — Tampa, FL August 2023 – Till Date

Lead Full Stack .NET Developer / Application Development Technical Lead

Roles & Responsibilities

Lead technical architecture, solution design, development, code reviews, and production support for the Resources@Citi enterprise financial platform using C#, .NET 8, ASP.NET MVC, Web API, Angular 18, Azure, and SQL Server.

Translate complex financial business requirements (forecasting, accruals, resource planning, T&M contracts, hiring, and software-request workflows) into scalable architectures, technical designs, reusable components, and production-ready solutions.

Led development and enhancement of responsive Angular 18 user interfaces supporting the platform's forecasting, accruals, resource-planning, and contract-management workflows.

Design and integrate RESTful Web APIs and microservices connecting Angular/React front ends, backend services, and enterprise systems; secure them end-to-end with OAuth 2.0, JWT, and SSO.

Design and optimize SQL Server data-access components, stored procedures, and queries to support high-volume enterprise financial applications.

Developed and deployed ASP.NET Core Web APIs and microservices on Microsoft Azure, using Azure App Services and containerized workloads for scalable, cloud-native delivery.

Implemented Azure DevOps CI/CD pipelines for automated build, testing, deployment, and release management, complementing existing Jenkins/Harness pipelines.

Used Azure Application Insights and Azure Monitor for application performance monitoring, centralized logging, alerting, and production troubleshooting.

Designed scalable cloud solutions using Azure Functions, Azure Kubernetes Service (AKS), API Management, and messaging services, extending the platform's microservices architecture.

Own CI/CD pipelines on Jenkins, Harness, GitHub, Docker, Amazon ECS, and OpenShift, plus deployment automation via uDeploy/RLM, supporting a Release-on-Demand model.

Built a Java/React reporting solution that replaced legacy Tableau dashboards, simplifying the reporting stack and improving flexibility for business users.

Automated monthly financial accrual/allocation workflows integrated with PTS-W, eliminating ~20 hours of manual effort per month.

Lead a distributed onshore/offshore team of up to 15 engineers, driving mentoring, architecture guidance, and code-review standards.

Introduced GitHub Copilot and Devin.ai into the team's workflow for code generation, automated test creation, and documentation; implemented automated UI regression testing using Playwright alongside unit and integration testing to improve release confidence.

Implemented AI agents for automated report generation using leading LLMs, streamlining recurring business and financial reporting for the Resources@Citi platform.

Use AI tools on a daily basis across the development lifecycle — code generation, code review, debugging, and bug fixes — to accelerate delivery and improve code quality.

Use Splunk and AppDynamics to monitor and troubleshoot application failures, analyze performance, identify bottlenecks, and tune high-volume financial applications.

Write and maintain unit and mock-based tests using xUnit, and validate REST API contracts and integrations using Postman and Insomnia ahead of release.

Run static and software-composition vulnerability scans using Checkmarx, Black Duck, and SonarQube as part of the CI/CD pipeline, triaging findings and coordinating remediation with development teams to close security and code-quality gaps before release.

Environment: C#, .NET 8, ASP.NET MVC 5, Web API 2, Angular 18, TypeScript, JavaScript, Node.js, Java, React, SQL Server, SSRS, LINQ, REST APIs, Microservices, OAuth 2.0, JWT, SSO, Jenkins, Harness, GitHub, Docker, Amazon ECS, uDeploy, RLM, Playwright, Splunk, AppDynamics, OpenShift, Azure App Services, Azure Functions, AKS, API Management, Azure DevOps, Application Insights, Azure Monitor, GitHub Copilot, Devin.ai, Agile/Scrum.

Virtusa — Tampa, FL April 2019 – August 2023

Lead Full Stack .NET Developer / Senior Software Engineer

Roles & Responsibilities

Architected and delivered a Forecasting & Accruals platform supporting 1,000+ users, covering resource planning, T&M contract management, hiring, and approval workflows.

Designed and developed enterprise applications using C#, ASP.NET MVC, Web API, AngularJS, LINQ, and SQL Server, building scalable, high-performance systems.

Built secure RESTful APIs and backend services, integrating frontend applications with enterprise systems using OAuth 2.0, JWT, and SSO.

Developed responsive AngularJS UI components with reusable design, client-side validations, and workflow-driven user experiences.

Optimized SQL Server queries, stored procedures, and data-access layers to improve application performance and reliability.

Led code reviews and mentored offshore teams (6–8 engineers), driving coding standards, architecture best practices, and delivery quality.

Supported CI/CD and containerized deployments using Jenkins, Docker, AWS ECS, and Git; leveraged Splunk and AppDynamics for monitoring and root-cause analysis.

Modernized legacy systems into scalable, cloud-ready .NET services and microservices, improving maintainability and extensibility.

Worked across the full SDLC, from requirements analysis and design to deployment, production support, and issue resolution.

Diagnosed and resolved complex application, performance, and production issues, ensuring system stability and business continuity.

Applied distributed system and event-driven integration patterns to enable reliable communication across enterprise services.

Collaborated with business stakeholders, product teams, architects, QA, DevOps, and offshore engineering teams to analyze requirements and translate business needs into technical solutions.

Environment: C#, .NET, ASP.NET MVC 5, Web API 2, AngularJS, JavaScript, HTML5, CSS3, Bootstrap, LINQ, SQL Server, SSRS, REST APIs, OAuth 2.0, JWT, SSO, Jenkins, Docker, AWS ECS, Splunk, AppDynamics, Git, Agile/Scrum, CI/CD.

Virtusa — New Jersey, April 2015 – April 2019

Senior Software Engineer

Roles & Responsibilities

Served as a Lead Full Stack .NET Developer supporting Citigroup Private Banking's enterprise Document Management System, providing technical leadership across application development, integration, modernization, migration, and production support.

Designed and developed enterprise applications using C#, ASP.NET, WCF, WPF, Windows Services, SOAP, LINQ, ADO.NET, Oracle, and Documentum.

Developed web-based functionality using ASP.NET, AJAX, jQuery, HTML, JavaScript, and responsive UI techniques for Citi Private Banking users.

Designed and implemented enterprise integrations between .NET applications and Documentum Enterprise Content Management using DFC, DQL, Workflow Manager, WebTop, and related Documentum technologies.

Migrated more than 7 million documents from SAN storage into Documentum using custom Windows Services and migration utilities, supporting retirement of the legacy Hummingbird platform across the U.S.

Converted and migrated more than 9 million records from Documentum repositories into Oracle, supporting decommissioning of the legacy RAPIDS application across APAC.

Designed and implemented enterprise document workflows using Documentum Workflow Manager and Autosys to automate document lifecycle management, routing, archiving, and processing.

Developed reusable C#/.NET wrapper components that enabled ASP.NET applications to integrate with the Documentum Enterprise Content Management platform.

Developed migration, transformation, reconciliation, and validation utilities to process and verify large-scale document and data migration batches.

Optimized Oracle database performance using stored procedures, views, parameterized queries, LINQ-based data access, and query tuning techniques.

Developed WPF desktop applications, WCF services, Windows Services, Outlook plug-ins, AJAX/jQuery web components, and RDLC reporting solutions.

Led application and infrastructure modernization activities involving Windows Server and .NET Framework upgrades, maintaining application stability and minimizing business disruption.

Collaborated with business stakeholders, QA teams, infrastructure teams, application support teams, and distributed development resources throughout requirements analysis, development, testing, deployment, and production support.

Performed application troubleshooting, defect resolution, performance tuning, technical analysis, and production support for critical Citigroup Private Banking applications.

Participated in code reviews, technical design discussions, documentation, mentoring, and engineering best-practice initiatives across distributed development teams.

Led modernization of legacy enterprise applications by designing reusable, service-oriented .NET components and API integrations, improving scalability, maintainability, and integration capabilities across the Document Management ecosystem.

Implemented secure enterprise application integration patterns incorporating authentication, authorization, SSO, and service-level security for applications processing sensitive banking and document-management data.

Environment: C#, ASP.NET, .NET Framework, WCF, WPF, Windows Services, Documentum, DFC, DQL, Workflow Manager, WebTop, Records Manager, Oracle 10g, SQL, LINQ, ADO.NET, SOAP, AJAX, jQuery, RDLC, Autosys, Windows Server, Enterprise Content Management.

Polaris Consulting & Services Ltd. — Hyderabad, India March 2010 – April 2015

Senior Project Lead

Roles & Responsibilities

Collaborated with business stakeholders and Citi clients to gather requirements, perform solution analysis, prepare functional specifications, and provide project status updates throughout the SDLC.

Coordinated and mentored distributed offshore development teams while providing technical guidance to onsite resources, ensuring quality deliverables, knowledge sharing, and adherence to development standards.

Designed and developed reusable .NET wrapper components to integrate ASP.NET applications with the Documentum Enterprise Content Management (ECM) platform.

Developed SQL Server stored procedures, Windows Services, and Windows desktop utilities to support large-scale document and data migration from legacy systems into the enterprise Document Management System.

Optimized application and database performance using LINQ-based data access, parameterized SQL queries, stored procedures, and query tuning techniques, improving database efficiency and reducing memory consumption.

Enhanced enterprise web applications using AJAX and jQuery-based partial-page rendering and supported infrastructure modernization by upgrading Windows Server environments and migrating applications to .NET Framework 4.5.2.

Designed reusable service-oriented .NET components and integration frameworks to connect enterprise applications with Documentum, SQL Server, Oracle, and other backend systems.

Provided technical leadership for application modernization, integration, performance optimization, and distributed development, establishing scalable development practices for enterprise banking applications.

Environment: C#, ASP.NET, .NET Framework 4.5.2, ASP.NET Web Forms/MVC, WCF, WPF, Windows Services, Documentum, DFC, DQL, Workflow Manager, SQL Server, Oracle 10g, LINQ, ADO.NET, SOAP, AJAX, jQuery, Windows Server 2003/2012 R2, Autosys, Enterprise Content Management, Visual Studio, Agile/SDLC.

Education

Master of Computer Applications (MCA) - Jawaharlal Nehru Technological University (JNTU) - Hyderabad, India

Bachelor of Science (B.Sc.) – Electronics - Kakatiya University - India

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