Nischal S Narayana
Verified Expert in Engineering
Software Engineer and Developer
Mysuru, Karnataka, India
Toptal member since July 27, 2026
Nischal is a seasoned technical architect and an AI and data practitioner who specializes in delivering high-impact, secure cloud-native AI solutions. A TOGAF-certified expert with an academic background in computer science, he focuses on bridging the gap between complex engineering and strategic business value with a skill set in machine learning, C#, Python, and SQL. Nischal has a proven track record of scaling enterprise applications to serve over one million client users.
Portfolio
Experience
- C# - 11 years
- Python - 8 years
- Kubernetes - 5 years
- Artificial Intelligence (AI) - 5 years
- Microservices - 5 years
- C++ - 5 years
- Machine Learning - 4 years
- Docker - 2 years
Preferred Environment
Azure, Amazon Web Services (AWS), Google Cloud Platform (GCP), Kubernetes, Docker, Jira, Terraform, Azure DevOps, Wireshark, Qualys
The most amazing...
...cloud architecture I've designed supported 1+ million users and reduced infrastructure costs by 10% for an asset management platform.
Work Experience
Technical Architect
Cyient Limited
- Architected the target-state enterprise multi-tenant cloud architecture for an asset management platform processing 1+ million GEMM job-ready work orders weekly and reducing infrastructure consumption cost by 10%.
- Implemented a secure GenAI app with authentication, establishing token-based authorization and semantic routing policies to protect enterprise LLM endpoints.
- Provided consultation and guidance about API security testing, SRE, data modeling, and governance for LLM applications.
Technical Architect
Photon Interactive
- Guided the design and implementation of Azure-based cloud architecture for high-traffic applications, improving system performance by 15% and reducing cloud operational costs by 20% through optimized resource utilization.
- Performed API Security testing, DevSecOps CI/CD pipelines, static application security testing (SAST), change management approval gates, followed processes, and ISO documentation to ensure compliance with ISO/IEC 27001:2022 ISMS controls.
- Built multi-agentic AI orchestration POC using Microsoft AutoGen, directing four autonomous specialized agents to automate data enrichment and optimize order workflows in an enterprise application landscape.
- Implemented API services using .NET 6 and .NET 7 Core WebAPI and Okta integration (SSO) for 3rd-party API integrations.
Senior Technical Lead
HCL Technologies
- Directed a team tasked with developing and maintaining AWS cloud infrastructure, delivering a good manufacturing practices (GMP) application with adherence to HIPAA, EU ENISA, and GDPR.
- Optimized distributed search architecture using AWS OpenSearch and caching strategies, improving response time by 15% and reducing latency below four seconds.
- Led the team responsible for delivering retail banking cheques magnetic ink character recognition (MICR) data reader from bank cheques using Python, data preparation, and model training to deployment and monitoring.
- Performed API penetration testing, anomaly detection, and web application security scanning and analysis using Carbon Black Cloud Endpoint and Qualys, following ISO- and NIST-aligned governance.
Technical Lead
Societe Generale Global Solution Centre
- Directed the team on asset management, financial services platforms, European and US regulatory workflows, cloud migration, and transition with less than 20% impact on business operations, with a business continuity plan prepared.
- Designed and integrated multi-factor authentication (MFA) via Okta and OIDC federated protocols.
- Implemented regulatory application collaborating with product owners and architects to deliver complex European and US regulatory workflow checks using machine learning in adhering to regulations of DFA, EMIR, FATCA, MiFID, ETNC, McKorea, and GDPR.
Senior Software Engineer
Schneider Electric
- Developed a WPF graphical interface for connectors for HMI software that controls industrial systems (PLC), helping programmers to use a graphical interface instead of a complex configuration HMI screen.
- Implemented variables to read industrial sensory data and graphical drag-and-drop connectors and PLC components like fan speed, bit switch, logic screen, and lamps, thus simplifying complex industrial automation logic.
- Collaborated with architects and business sponsors to create the software requirements specification and technical design specification.
Senior Software Engineer
Symphony Teleca
- Implemented a POS retail software application with modules for inventory monitoring, billing, reconciliation, and report generation.
- Improved POS transaction execution and cash drawer call rate by 20% using asynchronous thread implementations.
- Developed applications using C#, VC++, WPF, Microsoft SQL (SSIS, Analysis Services), Microsoft Message Queuing (MSMQ), NUnit, Telerik Controls, WCF web services, and SOA architecture.
Senior Software Development Engineer
Microsoft Corporation
- Developed a graphical user interface for SQL entities and database processing.
- Implemented high-availability components for SQL entities as per Microsoft's technical specifications.
- Collaborated with global team members, partners, and management stakeholders, delivering software patches and service packages on time.
Experience
Site Production Monitoring
Education
Postgraduate Certificate in Cybersecurity
Massachusetts Institute of Technology (MIT) - Cambridge, MA, USA
Master's Degree in Computer Science
University of Oxford - Oxford, UK
Bachelor of Engineering Degree in Information Science and Engineering
Visvesvaraya Technological University (VTU) - Hubli, India
Certifications
ISO/IEC 27001:2022 Lead Auditor
TÜV SÜD
Microsoft Certified: Azure AI Engineer Associate
Microsoft
The Open Group Certified: TOGAF Enterprise Architecture Foundation
The Open Group
AWS Certified Solutions Architect – Associate
Amazon Web Services
Exam 475: Designing and Implementing Big Data Analytics Solutions
Microsoft
Exam 534: Architecting Microsoft Azure Solutions
Microsoft
General Management Program
NUS Business School, National University of Singapore
Skills
Libraries/APIs
React, Web API, Node.js, jQuery, TensorFlow, Keras, Scikit-learn
Tools
Terraform, AWS Cloud Development Kit (CDK), Claude Code, Jira, Wireshark, NMap, Azure App Service
Languages
C#, Python, JavaScript, SQL, Java, C++, GraphQL
Frameworks
TOGAF, AutoGen, Windows Presentation Foundation (WPF), Hadoop, Spark, NUnit, ASP.NET MVC, Windows Workflow Foundation
Paradigms
Azure DevOps, Microservices, DevSecOps, DevOps, Business Intelligence (BI)
Platforms
Azure, Amazon Web Services (AWS), Google Cloud Platform (GCP), Kali Linux, Azure AI Studio, AWS Lambda, Telerik, Kubernetes, Docker, Jupyter Notebook, Azure Synapse, Firebase
Storage
MongoDB, Azure Cosmos DB, Azure SQL Databases, PostgreSQL, NoSQL, SQL Server Analysis Services (SSAS), SQL Server Reporting Services (SSRS)
Other
Azure AI Foundry, Azure Databricks, Okta, WebSockets, Windows Communication Foundation (WCF), Cursor AI, Google ADK, Amazon Bedrock AgentCore, MITRE, CVSS, Machine Learning, Neural Networks, Enterprise Cybersecurity, AI Security, Data Governance, OpenAI, Azure AI Services, Azure AI Face Service, Azure AI Document Intelligence, Azure AI Bot Service, AI Foundry, AWS ECS Fargate, Cloud Infrastructure, Azure Data Factory (ADF), Static Application Security Testing (SAST), ESLint, TIBCO, MSMQ, Qualys, HIPAA, Artificial Intelligence (AI), Information Retrieval, OT Security, Banking Regulations, B2B Sales, General Management, ISO 27001, Information Security Management Systems (ISMS), Enterprise Architecture, Big Data Architecture
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