Devansh Halwai

Software Engineer

Kolkata, West Bengal, India4 yrs 6 mos experience

Most Likely To SwitchAI Enabled

Key Highlights

Expert in AWS SageMaker and large language models.
Proven track record in enhancing user experience with Alexa.
Strong problem-solving skills with cost-saving implementations.

Stackforce AI infers this person is a SaaS-focused software engineer with expertise in voice technology and operational excellence.

Contact

Skills

Core Skills

Aws SagemakerReactJavaSpringbootWebrtcC++GrpcJavascriptAngularjs

Other Skills

Agentic AIAmazon Web Services (AWS)BedrockCSSCascading Style Sheets (CSS)FastAPIFirebaseFlutterGo (Programming Language)HTMLHTML5Large Language Models (LLM)Microsoft ExcelMicrosoft OfficeMicrosoft PowerPoint

About

At Amazon, my focus is on integrating AWS SageMaker with Alexa's AskAgentSDK, enhancing the user experience by enabling more natural interactions. This involves deploying open-source large language models and optimizing for cost-effective solutions that align with Amazon's "Think Big" philosophy. Our team's efforts have led to monthly savings and improved operational excellence. With a Bachelor's from Heritage Institute of Technology, I leverage my background in computer science to develop robust software solutions. I'm driven by the challenge of creating technologies that delight users and strive to continue refining systems that reach millions daily, ensuring seamless interactions and service reliability.

Experience

Amazon

4 roles

Software Dev Engineer II, Amazon Health Services

Nov 2025 – Present · 4 mos

Model Context Protocol (MCP)StrandsAgentic AIReactBedrockFastAPI+1

Software Dev Engineer II, Subscribe & Save

Apr 2025 – Nov 2025 · 7 mos

I successfully enhanced Seller Performance reporting and coupon creation functionalities, demonstrating my ability to quickly learn & work with new technologies.
Implemented a Performance Report page on Subscribe & Save page on SellerCentral.
Architected a scalable solution for Seller Coupon creation.

JavaSpringbootReact.jsReactModel Context Protocol (MCP)

Software Dev Engineer II, Alexa Enterprise Product

Oct 2024 – Apr 2025 · 6 mos

Design, Implemented the integration of Alexa Communication (Call, Messaging, Drop-in) for 3p Headless Devices, overcoming toolchain compatibility challenges.
Mentored new engineers during mutiple Alexa App 3p partner launch, fostering knowledge transfer and maintaining delivery standards.

Software Development Engineer

Jul 2022 – Oct 2024 · 2 yrs 3 mos

Spearheaded operational excellence and ensured seamless production service for AIA (Alexa).Successfully managed multiple software risks and oversaw the migration to new API contracts. Implemented cost-saving measures, resulting in a monthly savings of over $5,000 by optimizing production resources.Demonstrated strong problem-solving skills by resolving customer-impacting issues and providing real-time solutions to enhance customer satisfaction.
Led the development and implementation of a cutting-edge Multi-Agent, Alexa Communication architecture on the Alexa SDK. Designed and executed complex Agent handoff scenarios, enabling smooth transitions between agents. Integrated Webrtc technology seamlessly with internal libraries, enhancing communication capabilities.Pioneered the development of a user-friendly UI for Calling, improving the user experience and engagement.

C++ReactLarge Language Models (LLM)AWS SageMakerAmazon Web Services (AWS)Webrtc

Keysight technologies

2 roles

R&D Engineer

Aug 2021 – Jun 2022 · 10 mos · Kolkata, West Bengal, India

Keysight's simplified solution for the SONiC Testbed Platform in a Box
Developed software stack on UHD100T32 platform. This includes implementation of backend gRPC server which orchestrates and runs all necessary servers/cEOS and SONiC community-specific containers leveraging docker. Frontend command-line tool to control and exercise APIs like topo start/stop, test run/reports/status, etc from the user console. In addition to taking care of all other utilities like system commands, logs, diagnostics, test reports, and licensing.
Providing customer support to onboard/configure custom DUT by custom port config/custom minigraph to move ahead with the device testing and also the ability to change different speed modes.

C++Go (Programming Language)gRPC

SDE Intern

Nov 2020 – Aug 2021 · 9 mos · Kolkata, West Bengal, India

Internsha

Angular Training by Internshala

May 2020 – Jun 2020 · 1 mo

In this training, I learned about the basics of Angular, managing forms and data Storage, handling services and pipes, routing, handling firebase auth and storing data in cloud firestore

JavaScriptCascading Style Sheets (CSS)HTML5AngularJS

Cookytech

Software Craftmanship Intern

Jun 2019 – Aug 2019 · 2 mos · Kolkata Area, India

Project - (mastermentors.in)
UI Implementations of the website using React Components,HTML,CSS and State Mangement using JSX
Firebase Auth Implementation