Dev Kumar profile photo 1 on Tal

Dev Kumar

Product Engineer | AI-First | MERN · LLM Integration · RAG | Open to Global Roles

Shahadara

4+ years of work experience

GetBit.in
Mar 20251 yr 3 mosPresent

Remote

●​ Engineered scalable full-stack features for a cross-border remittance platform processing USA → India transfers, integrating payment gateways and compliance workflows. ●​ Built and secured REST APIs for real-time transaction processing and internal operational dashboards, ensuring data integrity across financial flows. ●​ Contributed to microservices architecture supporting high-availability, fault-tolerant financial workflows under production load. ●​ Reduced API response times by implementing Redis caching and targeted query optimization across critical transaction endpoints. ●​ Implemented structured logging and monitoring pipelines, cutting mean time to incident resolution and improving system observability.
FLot
Nov 20245 mosMar 2025

Delhi, India

• Developing and maintaining scalable, secure web applications to enhance user experience in the fintech industry. • Collaborating with cross-functional teams to deliver robust front-end and back-end solutions. • Implementing best practices in coding, testing, and deployment to ensure high performance and reliability. • Contributing to the continuous improvement of our tech stack, keeping pace with emerging technologies and fintech trends. • Focusing on delivering impactful and innovative solutions that drive financial accessibility and efficiency.
Career Break
May 20246 mosOct 2024

Remote

• Took a professional break from April 2024 to October 2024 to focus on skill enhancement and personal development. • Dedicated time to improving technical expertise, specifically in data structures, algorithms, and full-stack development. • Solved over 300 problems on LeetCode, strengthening coding and problem-solving skills. • Engaged in side projects to apply and enhance my skills in real-world scenarios. • Stayed updated with industry trends to remain competitive and adaptable for future roles.
HestaBit
Aug 20221 yr 9 mosApr 2024

Noida, Uttar Pradesh, India

• Contributed to full-stack development using the MERN stack (MongoDB, Express.js, React.js, Node.js), Next.js, and Gatsby.js to build highly scalable applications, resulting in a 20% increase in project efficiency and reduced timelines for feature rollouts by 15%. • Collaborated with cross-functional teams, including designers, product managers, and backend developers, to identify and solve 50+ complex technical challenges, leading to a 30% boost in overall team productivity and efficiency. • Worked directly with 5+ clients, gathering business requirements, providing technical solutions, and incorporating iterative feedback into the product development process, increasing client satisfaction by 25%.
Code Planet
Nov 20219 mosJul 2022

Jaipur, Rajasthan, India

• Proficient in core Python and Data Structures & Algorithms (DSA) - Achieved a 30% increase in code efficiency - Reduced debugging time by 20% • Hands-on experience with RDBMS using MySQL - Performed complex operations effectively - Managed databases with over 10,000 records

Education

Rajdhani College, University of Delhi

Bachelor of Arts, Hindi Language and Literature

Rajdhani College, University of Delhi

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Headline

Product Engineer | AI-First | MERN · LLM Integration · RAG | Open to Global Roles

About

I build software that ships — and lately, software that thinks. I'm a product engineer with 3+ years of experience owning features end-to-end — from API design and database modeling to React interfaces, mobile integrations, and AI-powered functionality. Some things I've built: — An AI customer support chatbot using RAG architecture (TF-IDF retrieval + Claude API), trained on 1,900+ real conversations, deployed in production — A real-time event pipeline using Segment webhooks with downstream analytics and CRM sync — Mobile attribution integration across iOS and Android — A referral program and milestone reward system, designed and shipped end-to-end — A user database cleanup pipeline processing 70K+ profiles for targeting accuracy I like working at the intersection of product, data, and AI — where engineering decisions have direct user impact. I'm comfortable picking up ambiguous problems, scoping them, and seeing them through to deployment. Currently exploring global and remote opportunities, with a specific interest in Japan. Actively preparing for JLPT N5 and open to relocation with visa sponsorship.

Location

Shahadara

Work experience

Software Engineer at GetBit.in, Mar 2025 - Present · 1 yr 3 mos, Remote, ●​ Engineered scalable full-stack features for a cross-border remittance platform processing USA → India transfers, integrating payment gateways and compliance workflows. ●​ Built and secured REST APIs for real-time transaction processing and internal operational dashboards, ensuring data integrity across financial flows. ●​ Contributed to microservices architecture supporting high-availability, fault-tolerant financial workflows under production load. ●​ Reduced API response times by implementing Redis caching and targeted query optimization across critical transaction endpoints. ●​ Implemented structured logging and monitoring pipelines, cutting mean time to incident resolution and improving system observability.

SDE at FLot, Nov 2024 - Mar 2025 · 5 mos, Delhi, India, • Developing and maintaining scalable, secure web applications to enhance user experience in the fintech industry. • Collaborating with cross-functional teams to deliver robust front-end and back-end solutions. • Implementing best practices in coding, testing, and deployment to ensure high performance and reliability. • Contributing to the continuous improvement of our tech stack, keeping pace with emerging technologies and fintech trends. • Focusing on delivering impactful and innovative solutions that drive financial accessibility and efficiency.

Professional development at Career Break, May 2024 - Oct 2024 · 6 mos, Remote, • Took a professional break from April 2024 to October 2024 to focus on skill enhancement and personal development. • Dedicated time to improving technical expertise, specifically in data structures, algorithms, and full-stack development. • Solved over 300 problems on LeetCode, strengthening coding and problem-solving skills. • Engaged in side projects to apply and enhance my skills in real-world scenarios. • Stayed updated with industry trends to remain competitive and adaptable for future roles.

Trainee Software Engineer at HestaBit, Aug 2022 - Apr 2024 · 1 yr 9 mos, Noida, Uttar Pradesh, India, • Contributed to full-stack development using the MERN stack (MongoDB, Express.js, React.js, Node.js), Next.js, and Gatsby.js to build highly scalable applications, resulting in a 20% increase in project efficiency and reduced timelines for feature rollouts by 15%. • Collaborated with cross-functional teams, including designers, product managers, and backend developers, to identify and solve 50+ complex technical challenges, leading to a 30% boost in overall team productivity and efficiency. • Worked directly with 5+ clients, gathering business requirements, providing technical solutions, and incorporating iterative feedback into the product development process, increasing client satisfaction by 25%.

Intern Fullstack Developer at Code Planet, Nov 2021 - Jul 2022 · 9 mos, Jaipur, Rajasthan, India, • Proficient in core Python and Data Structures & Algorithms (DSA) - Achieved a 30% increase in code efficiency - Reduced debugging time by 20% • Hands-on experience with RDBMS using MySQL - Performed complex operations effectively - Managed databases with over 10,000 records

Education

Bachelor of Arts, Hindi Language and Literature, Rajdhani College, University of Delhi

Public links

github: https://github.com/dev2842000