.NET Full Stack Developer

Abhigna D

Sr. Fullstack .Net Developer

Mobile: +1-201-***-**** Mail: **********@*****.*** LinkedIn: www.linkedin.com/abighna PROFESSIONAL SUMMARY

• Over 10+ Years of experience in designing, developing, and deploying enterprise applications using Microsoft technologies such as C#, .NET Framework, ASP.NET MVC, ADO.NET, Entity Framework, WCF, Web API, and IIS within Visual Studio.

• Developed and maintained complex SQL Server stored procedures, triggers, views, functions, and scheduled jobs to support high-volume enterprise applications and mission-critical business operations.

• Designed and optimised ETL workflows for seamless migration and synchronisation of data between legacy on-premise systems and cloud-hosted vendor platforms using RESTful APIs and secure integration methods.

• Built scalable API integrations to enable real-time data exchange between internal applications, third-party systems, and cloud services while ensuring high availability and secure communication.

• Engineered robust .NET applications using C#, ASP.NET, and Web APIs to support backend services, business workflows, reporting systems, and operational automation.

• Created interactive Power BI dashboards and analytical reports providing real-time visibility into operational metrics, KPI tracking, business performance, and executive decision-making.

• Performed advanced SQL Server performance tuning, query optimisation, indexing strategies, and database troubleshooting to improve system efficiency and reduce execution time.

• Collaborated with business stakeholders, analysts, and technical teams to gather requirements, define technical specifications, and deliver scalable enterprise solutions aligned with project objectives.

• Supported full Software Development Life Cycle (SDLC) including requirement analysis, design, development, testing, deployment, production support, and ongoing enhancements.

• Developed automated data validation, reconciliation, and monitoring processes to ensure data integrity, consistency, and compliance across multiple integrated systems.

• Implemented RESTful APIs and backend services for secure system interoperability, enabling efficient communication between enterprise applications and external vendor systems.

• Troubleshot and resolved complex production issues related to SQL Server databases, .NET applications, API integrations, and Power BI reporting environments.

• Engineers secure, API-first distributed systems following best practices in serverless and containerised deployments, ensuring solutions are scalable, maintainable, and aligned with modern cloud architectural principles.

• Champions DevOps and cloud-native SDLC practices, establishing automated CI/CD pipelines and efficient Git workflows to ensure rapid, reliable deployments and maintain high code quality in fast-paced, high-impact environments.

• Design and implement custom SharePoint solutions, including workflows, web parts, SPFx components, PowerShell scripting, and SharePoint Designer workflows across SharePoint Online and SharePoint On-Premise environments

• Collaborate with business analysts and stakeholders to gather and analyse requirements, translating business needs into effective technical solutions.

• Integrate React frontend components built with JavaScript, HTML, and CSS with backend RESTful APIs developed in .NET to ensure seamless functionality.

• Optimise application performance, troubleshoot technical issues, and maintain system reliability across web and SharePoint platforms.

• Manage SharePoint environments, including configuration, customisation, administration, and troubleshooting.

• Ensure code quality by writing unit tests, participating in code reviews, and following best practices aligned with SDLC and Agile methodologies.

• Work with database technologies such as SQL Server to support backend development and data management requirements.

• Stay updated with the latest industry trends and advancements in .NET, React, and SharePoint technologies to continuously improve development practices.

• Deep understanding of Agile/Scrum methodologies, sprint planning, backlog grooming, and iterative delivery for faster time-to-market.

• Adept in documenting technical workflows, architecture diagrams, and deployment blueprints, ensuring transparency and knowledge transfer.

• Recognised for delivering secure, maintainable, and high-quality software solutions under tight deadlines through innovation and teamwork.

• Experienced in performance profiling, memory optimisation, and code instrumentation for tuning .NET applications.

• Skilled in continuous monitoring and observability using tools like Grafana, Dynatrace, Prometheus, and Azure Monitor for performance and uptime tracking.

• Expertise in API versioning, backward compatibility, and data migration strategies during large-scale enterprise transformations.

• Strong ability to lead technical teams, mentor junior developers, and drive architecture reviews to uphold code quality and standards.

• Proficient in automating deployment pipelines and managing infrastructure as code (IaC) using Terraform and Azure DevOps pipelines.

TECHNICAL SKILLS

PROFESSIONAL SUMMARY

• Designed and developed secure, scalable online banking applications using ASP.NET Core 6.0, C#, MVC, and Entity Framework 6, enabling seamless account management and transaction processing

• Designed reusable backend components and modular service architectures to improve maintainability, scalability, and long-term application performance.

• Integrated cloud-based applications with enterprise systems using JSON, XML, REST APIs, and secure authentication protocols.

• Developed dynamic reporting solutions and custom Power BI visualizations to support operational analytics, forecasting, and business intelligence initiatives.

• Worked extensively with T-SQL for writing advanced queries, stored procedures, joins, cursors, temp tables, indexing, and data transformation logic.

• Participated in Agile/Scrum ceremonies including sprint planning, backlog refinement, code reviews, and release management activities.

• Enhanced application reliability and operational stability through proactive monitoring, root cause analysis, and implementation of preventive solutions.

• Managed database deployments, schema updates, and release activities across development, QA, staging, and production environments.

• Created technical documentation for APIs, database architecture, workflows, deployment procedures, and support processes to improve knowledge sharing and operational efficiency.

• Delivered scalable and high-performing enterprise solutions while maintaining strong focus on security, performance optimization, and user experience.

Languages C#, .NET Core/.NET 8, Python, Java (Spring Boot Services), SQL, JavaScript, TypeScript, Go, C/C++, VB.NET

Frameworks ASP.NET Core, Web API, Angular, React, Blazor, Microservices, REST/GraphQL, MVC, MVVM Cloud & DevOps Azure, AWS, Docker, Kubernetes, Terraform, Azure DevOps, Azure API Management (APIM), Azure App Services,Azure Functions,GitHub Actions, CI/CD, Google Cloud AI Services Databases SQL Server, PostgreSQL, Oracle, Snowflake, Cosmos DB, Dapper, ETL/ELT AI/ML & Data Generative AI, Machine Learning, PySpark, Pandas, NumPy, Scikit-learn, MLflow, Prompt Engineering,Google Agent Development Kit (Google ADK),Retrieval-Augmented Generation

(RAG),AI Agents & Tool Calling, Multi-Agent Systems,Vector Databases & Semantic Search Messaging &

Integration

Kafka, RabbitMQ, Azure Service Bus, NServiceBus, SOAP/REST APIs, Enterprise Payment Gateway Integration, ACH/eCheck Processing, Legacy System Integration Frontend Angular, React.js, Blazor, HTML5, CSS3, Bootstrap, RxJS Security OAuth 2.0, Azure AD/B2C, Auth0, API Security, PCI-DSS Compliance, Secure Payment Processing, Role-Based Access Control (RBAC), Secure Coding Testing & Tools NUnit, xUnit, Moq, Swagger, Postman, Git, Visual Studio Domains Financial Services, Banking & Payment Systems, Public Sector / Government Systems, Utility Services, Healthcare, Government, HCM, Enterprise Platforms Client: Bank of America, TX / Duration: Oct 2023 – Present / Role: Sr. Fullstack .Net Developer Responsibilities:

• Utilised NHibernate ORM for efficient data access and entity mapping, reducing manual SQL handling and improving development efficiency

• A full-stack architect using Python, Angular, and AWS to build data platforms, with deep expertise in designing high- volume batch processing systems for enterprise analytics and data integration.

• Develops sophisticated backend services with .NET Core and Python, creating RESTful APIs and micro-services specifically optimised to orchestrate and monitor complex, fault-tolerant batch processing jobs.

• Engineers responsive front-end applications using Angular and TypeScript, implementing a modular component architecture for performant interfaces that enable data exploration and cross-domain visibility.

• Architects cloud-native solutions on AWS, leveraging EC2, Fargate, Lambda, Glue, and S3 to build cohesive batch and real-time data processing frameworks.

• Have strong experience working with the .NET framework and primarily use .NET Core for development

• Demonstrated success in collaborating with cross-functional global teams to deliver reliable, innovative, and business- aligned .NET solutions.

• Iam proficient in React.js along with core frontend technologies like JavaScript, HTML, and CSS

• Have hands-on experience developing solutions for both SharePoint Online and SharePoint On-Premise environments

• Experienced with SharePoint development including building SPFx components, writing PowerShell scripts, and creating workflows in SharePoint Designer

• Regularly integrate frontend React components with backend APIs to build full-stack applications

• I am familiar with designing and consuming RESTful APIs to connect frontend interfaces with backend services

• Have good knowledge of database technologies and frequently work with SQL Server

• Understand the software development lifecycle and have worked in Agile team environments

• Possess strong problem-solving abilities and pay close attention to detail in my work

• Designed fault-tolerant, event-driven services for real-time transaction processing and alert notifications

• Managed Azure DevOps pipelines, Git, and GitFlow branching strategies to ensure efficient source control and release management

• Conducted unit testing, integration testing, and UAT validation using NUnit, Postman, and Swagger to ensure system reliability and correctness

• Applied SOLID principles and clean architecture patterns to maintain high code quality, reusability, and consistency across multiple micro-services

• Developed native client tools using WPF and WinForms to deliver high-performance, user-friendly interfaces

• Supported SharePoint Portal Server 2019 for access control, permissions management, and user administration

• Led knowledge transfer sessions and prepared architecture diagrams and operational guides to facilitate future maintenance and onboarding

• Troubleshot and resolved performance bottlenecks, improving response times by 35% and increasing overall application uptime

Environment: C#, .NET Core 6, ASP.NET MVC, Entity Framework 6, ADO.NET, SQL Server, Oracle PL/ SQL, Azure Cloud, Azure DevOps, Angular 15/16, JavaScript, TypeScript, HTML5, CSS3, Bootstrap, Web API, REST, Micro-services, Docker, Kubernetes, Terraform, Redis, NHibernate, Git, IIS, Visual Studio, WPF, WinForms, OutSystems, SharePoint Portal Server 2019, Agile/Scrum

• Developed and maintained enterprise-level web applications using C#, .NET Core, and ASP.NET MVC, ensuring high performance, scalability, and maintainability

• Architected enterprise-grade SQL Server solutions supporting high-volume transactional systems, ensuring scalability, reliability, and optimized data processing performance.

• Developed advanced data integration frameworks to synchronize business-critical information between cloud platforms, vendor-hosted applications, and internal enterprise systems.

• Built secure middleware services and API orchestration layers to streamline communication across distributed applications and external technology partners.

• Automated complex backend workflows using .NET services, reducing manual operational tasks and significantly improving processing efficiency.

• Designed enterprise reporting ecosystems in Power BI with drill-through analytics, KPI scorecards, executive dashboards, and real-time operational insights.

• Implemented SQL Server indexing strategies, partitioning, query refactoring, and execution plan optimization to improve database throughput and reduce latency.

• Developed scalable ASP.NET applications supporting both internal business operations and customer-facing services within enterprise environments.

• Engineered reusable API components and integration templates to accelerate future development and improve system maintainability.

Client: State of Kansas, Edu / Duration: Dec 2021 – Aug 2023 / Role: Sr. Fullstack .Net Developer Responsibilities:

• Performed large-scale data transformation and cleansing activities to improve reporting accuracy, analytics quality, and data governance compliance.

• Built secure RESTful services with authentication, authorization, logging, exception handling, and error recovery mechanisms.

• Designs multi-tenant batch architectures on AWS using cognito and fine-grained IAM policies to securely isolate data and processing for different clients or business units.

• Develops automated data lineage tracking by integrating Apache Atlas or AWS Glue DataBrew to visualise the flow and transformation of data through batch pipelines.

• Implements cost optimisation strategies for batch processing using AWS Spot Instances, Lambda reserved concurrency, and S3 Intelligent-Tiering.

• Implemented DevOps practices using CI/CD pipelines, Git, and Azure DevOps for automated build, testing, and deployment processes

• Conducted unit testing and debugging using NUnit and Postman to ensure code stability, reliability, and defect-free releases

• Implemented caching mechanisms such as Redis and MemoryCache to improve system performance and reduce database load

• Designed and maintained reusable components and shared libraries to standardise development practices and accelerate feature delivery

• Developed and consumed WCF services to enable reliable, service-oriented communication between distributed systems

• Performed root cause analysis, debugging, and production issue resolution to maintain smooth operations and minimise downtime

• Participated in code reviews, performance tuning, and best-practice enforcement to maintain high development standards

• Created detailed technical documentation, including system design specifications and API references, to support future maintenance and knowledge sharing

Environment: C#, .NET Core, ASP.NET MVC, Web API, Entity Framework, LINQ, SQL Server, JavaScript, jQuery, HTML5, CSS3, Bootstrap, Angular, Azure DevOps, Git, Visual Studio 2017/2019, WCF, REST, JSON, AJAX, NUnit, Postman, Redis, Agile/Scrum

• Designed and developed enterprise-level web applications using C#, .NET Core 2.1, ASP.NET MVC 5, and Entity Framework, delivering scalable and maintainable business solutions.

• Enhanced operational visibility by integrating Power BI reports with SQL Server datasets, APIs, and cloud-hosted business applications.

• Designed backend validation frameworks to ensure data consistency, reduce duplication, and maintain high-quality transactional records.

• Led troubleshooting efforts for performance bottlenecks across databases, APIs, reporting layers, and application services in production environments.

• Implemented scalable asynchronous processing solutions using scheduled jobs, background services, and automated task execution workflows.

• Supported enterprise modernization initiatives by migrating legacy systems into modern cloud-enabled architectures and service-oriented platforms.

• Developed configurable reporting frameworks enabling business users to access dynamic, self-service analytics and operational metrics.

• Improved database reliability through proactive maintenance activities including backup strategies, job monitoring, indexing, and disaster recovery planning.

• Integrated third-party vendor APIs with enterprise applications to enable automated data exchange, operational tracking, and workflow synchronization.

• Designed normalized and optimized database schemas aligned with enterprise data standards and long-term scalability requirements.

• Implemented secure data access models and role-based authorization controls across SQL Server databases and .NET applications.

• Implemented automated testing for both frontend components using Jest and backend services using xUnit or NUnit

• Familiar with cloud platforms such as Microsoft Azure, including deploying .NET applications and integrating with SharePoint Online

• Experience with CI/CD pipelines for automating builds, tests, and deployments

• Can create and optimise complex SQL queries, stored procedures, and indexes for better database performance Client: CVS Health, RI / Duration: Apr 2019 – Nov 2021 / Role: Sr. Fullstack .Net Developer Responsibilities:

• Implemented background processing and asynchronous workloads using Azure Queues and task scheduling, reducing response times and improving system efficienc

• Utilised LINQ to SQL and ADO.NET for robust data access, transaction management, and integration of business logic with SQL Server databases

• Conducted defect analysis, root cause investigations, and proactive debugging using Postman, Fiddler, JIRA, and TFS, improving application stability and reducing production incidents

• Developed and executed unit and integration tests using XUnit and Jasmine, increasing test coverage, reliability, and maintainability of enterprise applications

• Applied SOLID principles, clean architecture patterns, and reusable components to standardise development practices, enhance system maintainability, and support cross-module development

• Optimised SQL queries, backend operations, and database performance to ensure high throughput and efficient data processing

• Integrated document management and capture workflows using Laserfiche ECM and Kofax Capture, enabling automated ingestion, classification, and secure archival within .NET-based systems

• Monitored application performance and code quality using Splunk, SonarQube, Rollbar, and ReSharper, proactively identifying and resolving system bottlenecks

• Collaborated in Agile/Scrum teams, participating in sprint planning, daily stand-ups, reviews, and retrospectives to deliver high-quality iterative software releases

• Performed PLM configuration, customisation, and administration tasks, including user access management, workflow tailoring, data model setup, and lifecycle configuration to support enterprise product lifecycle processes

• Implemented PLM integration methods to synchronise data and workflows between PLM modules and .NET-based enterprise applications, ensuring seamless cross-system functionality

• Implemented PLM Integration Methods to synchronise data and workflows between PLM modules and .NET-based enterprise applications.

Environment: .NET Core 2.1, C#, ASP.NET MVC, Web API, Entity Framework, Angular 1.x/4/5/6, JavaScript, TypeScript, Bootstrap, AJAX, HTML5, CSS3, XML, SQL Server, ADO.NET, Postman, Fiddler, SonarQube, Rollbar, Splunk, ReSharper, CodeMaid, XUnit, Jasmine, Visual Studio 2017, Azure Cloud, JIRA, TFS, Agile/Scrum, PLM Tools, PLM Integration Frameworks, PLM Configuration & Administration Utilities.

• Designed and implemented modular .NET components to support Zoho’s SaaS product ecosystem, enhancing integration and code reusability.

• Created API documentation, technical specifications, and integration guides to support development teams and external partners.

• Built scalable backend modules supporting real-time processing, automated notifications, and high-volume data ingestion workflows.

• Collaborated closely with project managers, business analysts, architects, and end users to deliver high-impact technical solutions aligned with operational goals.

• Participated in code reviews, release management, and deployment activities to ensure high-quality software delivery and compliance with enterprise standards.

• Improved reporting efficiency by automating report generation, dashboard refresh schedules, and data extraction processes using Power BI and SQL automation.

• Stay updated with the latest industry trends and continuously improve skills through learning and certifications Experience mentoring junior developers and assisting team members with technical challenges

• Develops modern Angular applications with a modular architecture, creating reusable UI components for intuitive visualisation of complex platform analytics.

• Engineers robust AWS solutions using EC2, Lambda, Fargate, S3, RDS, and Glue to build and optimise batch processing frameworks for data reconciliation.

• Built and consumed RESTful Web APIs and WCF services to enable seamless integration between internal systems and external applications

• Implemented efficient data access layers using Entity Framework and ADO.NET, including optimised LINQ queries, stored procedures, and SQL Server performance tuning

• Played a key role in application architecture decisions, applying object-oriented design principles and best practices to improve code reusability and scalability

• Developed responsive and user-friendly interfaces using HTML5, CSS3, JavaScript, jQuery, and Bootstrap to enhance user experience across browsers and devices

• Performed in-depth debugging, root cause analysis, and resolution of complex production issues to ensure system stability and reliability

• Collaborated closely with product owners, business analysts, and QA teams in Agile/Scrum environments to deliver features within sprint timelines

Client: Zoho Corporation / Duration: Nov 2017 – Jan 2019 / Role: Sr.Net Developer Responsibilities:

• Conducted code reviews, enforced coding standards, and mentored team members to improve overall code quality and team productivity

• Managed deployments and application configurations on IIS, including environment setup, release support, and post-deployment validation

• Utilised version control systems such as Git and TFS to manage source code, track changes, and support collaborative development

• Proactively identified performance bottlenecks and implemented improvements to enhance application responsiveness and system efficiency

Environment: C#, ASP.NET MVC, .NET Framework 4.6, Web API, Entity Framework, LINQ, SQL Server, HTML5, CSS3, JavaScript, jQuery, Bootstrap, Razor, SignalR, Quartz.NET, Azure DevOps, PowerShell, Git, TFS, JSON, REST, IIS, Visual Studio 2015/2017, Agile/Scrum

• Designed, developed, and deployed enterprise web applications using C#, ASP.NET, and .NET Framework

(4.5/4.6) to support large-scale business operations.

• Created and optimised stored procedures, triggers, and views in SQL Server to enhance data integrity, scalability, and performance.

• Built web forms and reusable components using ASP.NET Web Forms, HTML5, CSS3, JavaScript, and Bootstrap for dynamic and responsive UI.

• Designed fault-tolerant integration processes with retry mechanisms, exception tracking, and transaction monitoring to ensure reliable system communication.

• Optimized API response handling and backend service performance to support enterprise-scale concurrent user activity.

• Built configurable ETL pipelines capable of handling large datasets from multiple data sources while maintaining high processing accuracy.

• Strengthened application stability through root cause analysis, production incident management, and implementation of preventive performance enhancements.

• Contributed to enterprise digital transformation initiatives by modernizing reporting, automation, integration, and backend service architectures.

• Proficient in writing complex SQL queries, stored procedures, functions, and triggers using SQL Server to support application functionality and data integrity

• Solid understanding of ADO.NET and Entity Framework for data access, integration, and performance optimisation

• Experience integrating third-party APIs and web services, including REST and SOAP services, to enable seamless system communication

• Strong debugging and troubleshooting skills to identify, analyse, and resolve application defects and performance issues

• Knowledge of front-end technologies such as HTML, CSS, JavaScript, and jQuery to support responsive and interactive user interfaces

• Experience participating in full software development life cycle (SDLC), including requirements analysis, design, development, testing, deployment, and post-production support

• Ability to collaborate effectively with cross-functional teams, including QA, business analysts, and project managers, to deliver high-quality solutions on time

• Experience maintaining code quality through code reviews, version control systems, and adherence to coding standards and best practices

• Strong communication skills with the ability to understand client needs and translate them into technical solutions Environment: C#, ASP.NET, .NET Framework 4.5/4.6, ADO.NET, Entity Framework, SQL Server, HTML5, CSS3, JavaScript, jQuery, Bootstrap, LINQ, WCF, Web API, PowerShell, IIS, Git, TFS, Visual Studio 2013/2015, Agile/Scrum Client: Zensar Technologies / Duration: Sep 2014 – Sep 2017 / Role: .Net Developer Responsibilities:

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