Harihar Nayak
Contact details — on requestProof of Work — on request
Experience
MERN Stack Developer
Nexus Technoware Solution Pvt. Ltd. · Apr 2024 – Jul 2026
- Developed and maintained full-stack web applications using MongoDB, Express.js, React.js, and Node.js, delivering secure and scalable business solutions.
- Built reusable React.js components with Redux state management and integrated RESTful APIs to enhance application usability and maintainability.
- Developed secure and scalable REST APIs using Node.js and Express.js, improving application performance through database query optimization, indexing, and Redis caching.
- Designed and optimized MongoDB schemas using indexing and aggregation pipelines to improve query performance and data retrieval.
- Implemented JWT- and OAuth 2.0-based authentication and Role-Based Access Control (RBAC) to secure application access and APIs.
- Integrated third-party services including Google Meet, Microsoft Teams, and Zoom APIs, and implemented asynchronous processing using RabbitMQ for background tasks.
- Collaborated with cross-functional teams in an Agile/Scrum environment, participating in sprint planning, code reviews, requirement analysis, and application deployment.
MERN Stack Developer
Nexus Technoware Solution Pvt. Ltd. · Apr 2024 – Jun 2026
I
Node.js Developer
IServeU Technology Pvt. Ltd. · Sep 2022 – Feb 2024
- Developed and maintained backend RESTful APIs using Node.js, Express.js, and PostgreSQL for enterprise applications.
- Designed normalized PostgreSQL database schemas using joins, aggregations, stored procedures, and transactions to ensure efficient data management.
- Improved application performance by implementing Redis caching and optimizing SQL queries for frequently accessed data.
- Developed and maintained unit and integration test cases using Jest to improve application quality and reliability.
- Participated in code reviews, debugging, requirement analysis, and Agile/Scrum ceremonies, collaborating with cross-functional teams to deliver high-quality software.
Node Js
iServeU · Sep 2022 – Feb 2024
MERN Stack Developer
Teceads Solutions · Nov 2021 – Mar 2022
Skills 0 proven through work
Also works with
CoSword UsageChatGPT UsageAI-Assisted DevelopmentFeature OwnershipGreenfield DevelopmentTechnical Task ExecutionTechnical Solution DesignRoot Cause AnalysisQuery WritingTechnical TroubleshootingBackend TroubleshootingProblem SolvingExplaining Technical ConceptsTeam CommunicationTaking OwnershipTeamworkAdaptabilitySoftware Quality AssuranceInformation ResearchStrategic PlanningEfficient SQL Data SelectionDatabase Index CreationDatabase Query AnalysisFault-Tolerant System DesignError HandlingInput Validation ImplementationTransaction Processing SystemsUser Profile Feature DevelopmentReal-Time Dashboard DevelopmentEvent-Driven ArchitectureSocket.IO UsageDatabase Query OptimizationBug FixingAPI Testing with PostmanData ModelingPayment Processing SupportWorkflow Design (Process Mapping)Onboarding System DevelopmentProduction Environment SupportMicrosoft Teams IntegrationReal-Time Systems DesignAPI Performance OptimizationRBAC Module DevelopmentREST API Endpoint DevelopmentMERN Stack DevelopmentScalable System DesignFull-stack DevelopmentSoftware Architecture PrinciplesSDLC Process ApplicationFeature ManagementRequirements AnalysisReact Hooks UsageResponsive UI ImplementationAPI IntegrationRabbitMQ Message Queue ImplementationBatch Processing ImplementationMicroservices ArchitectureWebSocket ImplementationReal-time Data AnalysisRedis Cache ImplementationJWT Authentication Filter ImplementationAPI Authentication ImplementationWeb Application Security ImplementationPostgreSQL Database UsageMongoDBReact DevelopmentExpress.js Backend DevelopmentNode.js DevelopmentBackend DevelopmentApplication DeploymentBuilding Web Applications
Proof of Work
Proof of Work
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Education
Master of Computer Applications, Computer Applications
NIIS Institute of Business Administration (IBA), Bhubaneswar · 2019 — 2021
Bachelor of Computer Applications, Computer Science and Information Systems
NC Autonomous College, Jajpur · 2016 — 2019
Contact details
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