Lead .NET Solutions Architect

Chalama R Challa

Enterprise Full-Stack Leader  ·  Cloud & Real-Time Systems  ·  Indianapolis, IN

0Years Experience
0K+ RPS Systems
0System Integrations
0% Faster Deploys
Scroll
01

Professional Summary

Enterprise .NET Solutions Architect and Senior Technical Lead with 18+ years of experience — since 2007 — designing, architecting, and delivering large-scale, mission-critical systems across government, financial, healthcare, and enterprise domains. Expert in full-stack development (Front-End, Back-End, ETL, and Data Systems) with deep specialization in ASP.NET MVC 5, Web API, C#, VB.NET, JavaScript, SQL Server, and Azure. Proven Scrum practitioner and project leader — driving Agile ceremonies, managing cross-functional teams, and aligning technical roadmaps with business goals. Adept at engaging stakeholders at all levels to elicit, document, and validate both functional and non-functional requirements. Skilled enterprise architect capable of defining scalable solution blueprints and translating complex technical requirements into clear direction for executive stakeholders including CTOs, deputy directors, and C-suite leadership.

02

Core Skills Matrix

⚙️
SDLC
18+ years — Full SDLC, Structured Development Methodologies
🔄
Agile / Scrum
18+ years — Scrum Master, Sprint Planning, Backlog Grooming, Retrospectives, Release Management
📋
Project Management
Cross-functional leadership, roadmap planning, stakeholder communication, risk mitigation
🏛️
Architecture
Enterprise system design, scalable microservices, solution blueprinting, technical roadmaps
📝
Requirements
18+ years — Functional & Non-Functional Requirements, Business Process Modeling, JAD Workshops
🖥️
.NET / Back-End
C#, VB.NET, ASP.NET MVC 4/5, Web API, .NET Framework/Core, Entity Framework, SignalR
🎨
Front-End
HTML5, CSS3, JavaScript, jQuery, React, Responsive Design, Bootstrap, Mobile App Design
🗄️
ETL & Data
SSIS, ETL Pipelines, SQL Server, Oracle, MySQL, SSRS, Large-Scale Data Processing
⚡
Real-Time Systems
Event-Driven Architecture, RabbitMQ, Azure Service Bus, TCP/IP Serial Communications
☁️
Cloud & DevOps
Azure (App Services, Functions, Service Bus, SharePoint), AWS, CI/CD, Git, Azure DevOps
🔗
Integration
REST APIs, Bloomberg API, ESRI ArcGIS, Internal/External System Integrations
🛠️
Tools
MS Office/PowerPoint, Visual Studio, SSMS, Jira, Confluence, Azure DevOps Boards
03

Professional Experience

Cornerstone OnDemand
February 2013 – Present
Lead Solutions Architect & Technical Lead
Leadership, Project Management & Agile Delivery
+

Serves as principal technical authority and project driver across all enterprise initiatives. Owns end-to-end delivery from solution architecture through production release, leading cross-functional teams of developers, QA engineers, and business analysts.

Project Management & Scrum
  • Acted as de facto Scrum Master across multiple concurrent projects — facilitating sprint planning, daily standups, backlog grooming, sprint reviews, and retrospectives
  • Defined and managed project roadmaps, milestones, and delivery timelines; coordinated release schedules across development, QA, and operations teams
  • Prepared and delivered project plans, architectural proposals, and delivery roadmaps directly to the CTO — translating complex technical strategies into clear, executive-level presentations that informed organizational investment and prioritization decisions
  • Partnered closely with Directors and VPs across business units to collaboratively develop working delivery models and engagement cadences — establishing shared expectations around sprint velocity, release windows, escalation paths, and cross-team dependencies
  • Tracked and communicated project status, risks, and blockers to senior leadership and deputy directors via structured executive alignment sessions; maintained Jira/Confluence project boards throughout
  • Led JAD workshops to elicit and document both functional and non-functional requirements; produced formal requirements traceability matrices (RTMs)
  • Mentored and trained development teams on architecture standards, coding best practices, and SDLC processes; provided hands-on technical onboarding for new team members
Architecture & Design
  • Defined enterprise solution architecture and technical blueprints for all major initiatives, ensuring alignment with business goals and scalability requirements
  • Conducted architecture reviews and established design standards, coding conventions, and best practices across all development teams
  • Implemented monitoring, logging, alerting, and reporting strategies for real-time systems, databases, and network communications
  • Ensured all project deliverables and SDLC processes remained in full compliance with government regulatory standards, district IT governance policies, and federal security requirements
  • Led POC initiatives for emerging technologies including cloud-native patterns, microservices, and real-time event-driven systems
Consistent on-time delivery of enterprise systems; established repeatable Agile delivery framework adopted across multiple project teams.
PROJECT 1 — Enterprise Census-Scale Government Platform
+

Architected and project-managed delivery of a national-scale distributed platform processing 50,000+ requests/second. Served as both lead architect and principal developer — facilitating all Agile ceremonies and coordinating delivery across development, QA, and infrastructure teams.

Stakeholder Engagement & Requirements
  • Conducted JAD workshops with agency directors, deputy directors, business analysts, and end users to capture and baseline functional requirements including workflows, business rules, reporting needs, and integration touchpoints
  • Elicited and formalized non-functional requirements covering throughput (50,000+ RPS), 99.9% availability SLAs, sub-second response targets, RTO/RPO objectives, and federal security standards; maintained requirements traceability matrix (RTM) reviewed at each sprint
  • Presented architecture blueprints, requirements documentation, and sprint status updates directly to agency leadership and deputy directors throughout the project lifecycle
Architecture & Design
  • Designed end-to-end system architecture: distributed data ingestion layer, ETL processing pipeline, real-time event bus, and reporting tier
  • Produced solution blueprints, data flow diagrams, API contracts, and integration specifications for all downstream systems
  • Defined database schema design, indexing strategies, and query optimization patterns for high-volume SQL Server workloads
Back-End
  • Architected distributed, high-availability backend using C#, ASP.NET MVC 5, and Web API
  • Designed and implemented real-time data ingestion and ETL pipelines using SSIS and custom batch processing
  • Built SQL Server reporting and analytics layers; authored complex stored procedures and SSRS reports
  • Implemented event-driven architecture with Azure Service Bus for asynchronous workload distribution
  • Implemented real-time monitoring, structured logging, and automated alerting across all system tiers
  • Ensured full compliance with government SDLC standards, district IT governance policies, and federal security requirements
Front-End
  • Developed responsive UI using HTML5, CSS3, JavaScript, and jQuery with ASP.NET MVC 5 Razor views
  • Built real-time operational dashboards with live data updates via SignalR
  • Ensured mobile-first responsive design and cross-device compatibility using Bootstrap
Delivered mission-critical national-scale system on schedule with 99.9% uptime, real-time analytics, and full district SDLC compliance.
PROJECT 2 — Cloud Modernization & Microservices Transformation
+

Led enterprise-wide migration of legacy ASP.NET MVC monolith to cloud-native microservices on Azure. Defined the multi-phase technical roadmap and architecture blueprint, facilitated Agile sprint cycles across three development squads.

Stakeholder Engagement & Requirements
  • Facilitated requirements workshops with business unit owners, IT leadership, and operations teams to define scope, priorities, and success criteria for the modernization initiative
  • Defined and validated non-functional requirements for the target cloud architecture: horizontal scalability, fault tolerance thresholds, deployment frequency goals, and cost optimization constraints
  • Maintained ongoing stakeholder alignment through structured sprint reviews and architectural decision briefings to senior leadership and program sponsors
Architecture & Design
  • Designed target-state microservices architecture: service decomposition strategy, API gateway patterns, and inter-service communication design
  • Produced ADRs, migration runbooks, and infrastructure-as-code templates for all Azure resources
  • Established CI/CD pipeline architecture using Azure DevOps — including branching strategy, automated testing gates, and blue-green deployment patterns
Back-End
  • Re-architected monolith into .NET Core microservices with REST Web APIs and independent deployment pipelines
  • Designed ETL and data migration strategies to preserve integrity across all systems during phased transition
  • Implemented Azure App Services, Azure Functions, and Azure Service Bus for scalable, event-driven processing
  • Established cloud monitoring and observability pipelines using Azure Monitor and Application Insights
Front-End
  • Redesigned UX using React and responsive design principles, improving mobile accessibility across all devices
  • Integrated front-end with new Web API layer, replacing legacy VB.NET postback patterns
  • Established CI/CD pipelines via Azure DevOps for automated build, test, and release management
Reduced deployment time by 60%; improved system scalability and fault tolerance across 12 enterprise modules.
PROJECT 3 — Enterprise Systems Integration: Financial & Supply Chain
+

Designed and led development of enterprise integration modules connecting internal ERP, financial, and supply chain systems with external third-party platforms. Managed the project backlog and Agile ceremonies.

Stakeholder Engagement & Requirements
  • Led cross-functional requirements workshops with finance, supply chain, operations, and IT stakeholders to document end-to-end integration workflows and data exchange needs
  • Defined non-functional requirements covering integration throughput, message delivery guarantees, API response time SLAs, and audit/logging requirements for regulatory compliance
  • Produced integration design specifications reviewed and signed off by business owners and technical leads prior to development commencement
Architecture & Design
  • Designed integration architecture: canonical data models, message transformation patterns, and API contract specifications
  • Authored system integration design documents, sequence diagrams, and data mapping specifications for all connected systems
Back-End & Front-End
  • Built real-time data exchange and ETL workflows across SQL Server and Oracle databases
  • Developed Web API services for internal/external system integration using C# and .NET Framework
  • Implemented integration monitoring, transaction logging, and exception reporting for real-time visibility into data exchange health
  • Developed management dashboards and reporting UIs using JavaScript, jQuery, and SSRS
  • Built SharePoint-integrated portals for document management and workflow tracking
Integrated 8 internal and external systems; eliminated manual data entry for 3 business units.
Nationstar Mortgage
2011 – 2013
Senior Software Engineer
  • Collaborated with business analysts and product owners to gather functional and non-functional requirements for loan processing and servicing system integrations
  • Mentored junior developers on .NET coding standards, design patterns, and SDLC best practices
  • Participated in Agile/Scrum ceremonies; contributed to sprint planning, backlog grooming, and requirements refinement
  • Back-End: Built real-time loan processing modules, scheduled ETL jobs, and SQL Server stored procedures for large dataset processing
  • Front-End: Developed ASP.NET MVC responsive UIs and internal reporting dashboards
  • Ensured SDLC compliance including documentation, unit testing, and release management procedures
Psomas — Emergency Response System (SitStat)
2009 – 2011
Senior Software Engineer
  • Worked with emergency operations stakeholders to elicit functional requirements and non-functional requirements including system latency tolerances and uptime expectations for mission-critical operations
  • Co-designed system architecture for real-time emergency response platform integrating GIS, serial data, and live operational feeds
  • Back-End: Developed C# backend services for live data processing, serial data communications, and real-time event handling
  • Front-End: Designed responsive operational dashboards with real-time map visualizations for field teams
  • Implemented TCP/IP and serial data communication layers for real-time sensor and device integration
  • Configured real-time system monitoring and operational alerting to ensure continuous uptime for mission-critical emergency response operations
PIMCO
2008 – 2009
Senior Software Engineer
  • Engaged with portfolio managers and compliance officers to document functional requirements for analytics workflows and non-functional requirements including data accuracy and performance benchmarks
  • Contributed to architecture design for financial analytics and compliance systems using C# and .NET Framework
  • Back-End: Built ETL pipelines ingesting data from Bloomberg API; designed SSRS reporting for portfolio management
  • Front-End: Developed ASP.NET web interfaces for compliance dashboards and executive reporting
  • Worked with large, complex financial data sets requiring high accuracy and strict regulatory compliance
Tenmast Software — Government Housing Systems
2007 – 2008
Software Engineer
  • Participated in structured SDLC requirements documentation for government housing authority programs across multiple jurisdictions
  • Back-End: Built VB.NET and C# modules, TCP/IP communication layers, and Linux/AIX backend integrations
  • Front-End: Developed Windows Forms and early web-based UIs for housing program management
  • Maintained and enhanced real-time database systems and reporting for government compliance requirements
  • Adhered to government SDLC and regulatory standards governing housing authority software, ensuring federal and state compliance
04

Education

🎓
Master of Science, Computer Science
University of Kentucky