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Senior Full-Stack Engineer with 4+ years building scalable, cloud-native SaaS platforms and marketplace applications, with strong experience across two-sided marketplace flows (registration, booking/workflows, and admin dashboards). Experienced integrating escrowed payments, authentication/authorization, search/discovery, real-time notifications, and standardized APIs for enterprise usage. Also integrates AI capabilities (RAG, vector search, OpenAI via Semantic Kernel) and works effectively with founders and non-technical stakeholders to deliver production-grade solutions on Azure and AWS, with CI/CD and performance/scalability improvements.…Senior Full-Stack Engineer with 4+ years building scalable, cloud-native SaaS platforms and marketplace applications, with strong experience across two-sided marketplace flows (registration, booking/workflows, and admin dashboards). Experienced integrating escrowed payments, authentication/authorization, search/discovery, real-time notifications, and standardized APIs for enterprise usage. Also integrates AI capabilities (RAG, vector search, OpenAI via Semantic Kernel) and works effectively with founders and non-technical stakeholders to deliver production-grade solutions on Azure and AWS, with CI/CD and performance/scalability improvements.

SONTE TULAJA

Full Stack Developer, Web Developer, Back-End Developer, +4

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Senior Full-Stack Engineer with 4+ years building scalable, cloud-native SaaS platforms and marketplace applications, with strong experience across two-sided marketplace flows (registration, booking/workflows, and admin dashboards). Experienced integrating escrowed payments, authentication/authorization, search/discovery, real-time notifications, and standardized APIs for enterprise usage. Also integrates AI capabilities (RAG, vector search, OpenAI via Semantic Kernel) and works effectively with founders and non-technical stakeholders to deliver production-grade solutions on Azure and AWS, with CI/CD and performance/scalability improvements.…Senior Full-Stack Engineer with 4+ years building scalable, cloud-native SaaS platforms and marketplace applications, with strong experience across two-sided marketplace flows (registration, booking/workflows, and admin dashboards). Experienced integrating escrowed payments, authentication/authorization, search/discovery, real-time notifications, and standardized APIs for enterprise usage. Also integrates AI capabilities (RAG, vector search, OpenAI via Semantic Kernel) and works effectively with founders and non-technical stakeholders to deliver production-grade solutions on Azure and AWS, with CI/CD and performance/scalability improvements.

Available to hire

Senior Full-Stack Engineer with 4+ years building scalable, cloud-native SaaS platforms and marketplace applications, with strong experience across two-sided marketplace flows (registration, booking/workflows, and admin dashboards). Experienced integrating escrowed payments, authentication/authorization, search/discovery, real-time notifications, and standardized APIs for enterprise usage.

Also integrates AI capabilities (RAG, vector search, OpenAI via Semantic Kernel) and works effectively with founders and non-technical stakeholders to deliver production-grade solutions on Azure and AWS, with CI/CD and performance/scalability improvements.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Advanced

Hindi

Intermediate

Work Experience

Senior Full-Stack Engineer — Marketplace & SaaS Platform at McKinsey & Company

January 1, 2025 - Present

Architected and delivered a two-sided SaaS marketplace platform for 500+ enterprise users using React 18, Node.js, and .NET 8, including user registration, booking, and a workflow engine. Built booking/reservation features with calendar availability management, conflict detection, and automated confirmation/notification workflows. Integrated escrowed payments with Stripe Connect (fund hold, conditional release, dispute handling). Delivered a full admin dashboard with role-based access control, implemented semantic search/discovery using Azure AI Search and Cosmos DB vector indexes, and integrated Azure OpenAI (GPT-4o) with Semantic Kernel for structured report automation. Deployed real-time notifications using SignalR and Azure Service Bus, standardized APIs with OData v4 and OpenAPI 3.1, and scaled CI/CD for on-demand zero-downtime releases on Azure with containerization and AKS.

Full-Stack Software Engineer — SaaS & Enterprise Web Platforms at Hexaware Technologies

March 1, 2020 - June 1, 2023

Designed and delivered 10+ enterprise web applications across banking, healthcare, and logistics using React, Angular, .NET Core, Node.js, and Python. Built authentication/authorization systems with OAuth 2.0, JWT, and RBAC, including multi-role access control for complex B2B platforms. Developed RESTful and OData APIs with validation and OpenAPI/Swagger documentation. Integrated Azure Cognitive Services for KYC document classification and data extraction, improving verification effort reduction. Architected normalized PostgreSQL/SQL Server schemas for throughput gains, automated CI/CD pipelines with Azure DevOps and GitLab, and containerized microservices with Docker/Kubernetes. Improved UI responsiveness and accessibility, and contributed to QA test suites (NUnit/SpecFlow) to reduce escaped defects.