Abhinav Sinha profile photo 1 on Tal

Abhinav Sinha

Software Engineer · AI Systems & Full-Stack Development | LLM Agents · RAG · Tool Calling · FastAPI · Node.js · AWS | Building intelligent backends that ship to production

Noida

2+ years of work experience

Sopra Steria
May 20251 yr 1 moPresent

Noida

Architecting production-grade agentic AI systems using LangChain and LangGraph — LLM agents that reason, call external tools, and execute multi-step workflows without human intervention. Implementing RAG pipelines with vector databases (Pinecone/Chroma) and graph databases for semantic retrieval and relationship-aware reasoning, reducing information lookup time significantly. Building and maintaining FastAPI microservices that power AI agent backends — designing clean REST endpoints, managing async execution, and deploying on Azure. Developing Selenium-based automation test suites that cut manual QA effort and improved release confidence across multiple sprint cycles.
75way Technologies Pvt. Ltd.
Jul 202410 mosApr 2025

Delivered full-stack features across web and mobile using React, Next.js, Node.js, and React Native — taking requirements to production-ready code within sprint timelines. Designed and integrated REST APIs with MongoDB and PostgreSQL backends, improving query performance and supporting scalable data architecture across client projects. Owned frontend UI development end-to-end: component design, responsive layouts, and cross-platform consistency between web and mobile.
75way Technologies Pvt. Ltd.
Jan 20246 mosJun 2024

Built and shipped React Native mobile features in a production codebase — handled state management, API integration, and UI across iOS and Android. Collaborated with senior engineers on full-stack tasks, gaining hands-on experience with Node.js backends, REST API consumption, and frontend design systems.
K3S Projects India Pvt Ltd.
Jul 20232 mosAug 2023

Uttarakhand, India

Oil and Natural Gas Corporation Ltd
Jun 20232 mosJul 2023

Dehradun, Uttarakhand, India

Celebal Technologies
May 20233 mosJul 2023

Remote

Education

Coer University

Btech, Computer Science

Coer University

20204 yrs2024

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Headline

Software Engineer · AI Systems & Full-Stack Development | LLM Agents · RAG · Tool Calling · FastAPI · Node.js · AWS | Building intelligent backends that ship to production

About

Software Engineer with hands-on experience building production-grade AI systems and full-stack applications across the IT industry. At Sopra Steria, I design and ship agentic AI systems — LLM-powered agents that call external tools, retrieve context through RAG pipelines, and execute multi-step workflows autonomously. I work across the full backend stack: FastAPI services, RESTful microservices, vector database integrations, and Selenium-based automation frameworks that cut manual QA effort significantly. Before that, at 75way Technologies, I built and deployed full-stack products using React, Next.js, Node.js, and React Native — shipping features across web and mobile for real users, with REST APIs and MongoDB/PostgreSQL as the data layer. My stack: Python · LangChain · LangGraph · OpenAI/Claude APIs · FastAPI · Node.js · React · React Native · MongoDB · PostgreSQL · AWS · Docker · Selenium I write clean, testable code. I care about system design, not just syntax. Open to Software Engineer roles where strong engineering and applied AI intersect.

Location

Noida

Work experience

Software Engineer at Sopra Steria, May 2025 - Present · 1 yr 1 mo, Noida, Architecting production-grade agentic AI systems using LangChain and LangGraph — LLM agents that reason, call external tools, and execute multi-step workflows without human intervention. Implementing RAG pipelines with vector databases (Pinecone/Chroma) and graph databases for semantic retrieval and relationship-aware reasoning, reducing information lookup time significantly. Building and maintaining FastAPI microservices that power AI agent backends — designing clean REST endpoints, managing async execution, and deploying on Azure. Developing Selenium-based automation test suites that cut manual QA effort and improved release confidence across multiple sprint cycles.

Associate Software Development Engineer at 75way Technologies Pvt. Ltd., Jul 2024 - Apr 2025 · 10 mos, Delivered full-stack features across web and mobile using React, Next.js, Node.js, and React Native — taking requirements to production-ready code within sprint timelines. Designed and integrated REST APIs with MongoDB and PostgreSQL backends, improving query performance and supporting scalable data architecture across client projects. Owned frontend UI development end-to-end: component design, responsive layouts, and cross-platform consistency between web and mobile.

Associate Software Development - Intern at 75way Technologies Pvt. Ltd., Jan 2024 - Jun 2024 · 6 mos, Built and shipped React Native mobile features in a production codebase — handled state management, API integration, and UI across iOS and Android. Collaborated with senior engineers on full-stack tasks, gaining hands-on experience with Node.js backends, REST API consumption, and frontend design systems.

Blockchain/Tech Intern at K3S Projects India Pvt Ltd., Jul 2023 - Aug 2023 · 2 mos, Uttarakhand, India

Internship Trainee at Oil and Natural Gas Corporation Ltd, Jun 2023 - Jul 2023 · 2 mos, Dehradun, Uttarakhand, India

Web Development Intern at Celebal Technologies, May 2023 - Jul 2023 · 3 mos, Remote

Education

Btech, Computer Science, Coer University