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Hi, I'm Sumit Kumar Das, a logical and result-driven software developer with over 7 years of experience in building and optimizing user-focused web applications. I specialize in front-end and full-stack development, working with technologies like React, TypeScript, and various back-end frameworks. I love collaborating with teams to create efficient, scalable solutions that improve user experience and business outcomes. Throughout my career, I've worked with diverse clients, from enterprise companies like IKEA and Lululemon to startups, helping enhance software performance and optimize delivery processes. I'm passionate about learning new technologies and continuously improving my skills to deliver the best results in every project I undertake.…Hi, I'm Sumit Kumar Das, a logical and result-driven software developer with over 7 years of experience in building and optimizing user-focused web applications. I specialize in front-end and full-stack development, working with technologies like React, TypeScript, and various back-end frameworks. I love collaborating with teams to create efficient, scalable solutions that improve user experience and business outcomes. Throughout my career, I've worked with diverse clients, from enterprise companies like IKEA and Lululemon to startups, helping enhance software performance and optimize delivery processes. I'm passionate about learning new technologies and continuously improving my skills to deliver the best results in every project I undertake.

SUMIT KUMAR DAS

Web Developer, Full Stack Developer, Developer, +1

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Hi, I'm Sumit Kumar Das, a logical and result-driven software developer with over 7 years of experience in building and optimizing user-focused web applications. I specialize in front-end and full-stack development, working with technologies like React, TypeScript, and various back-end frameworks. I love collaborating with teams to create efficient, scalable solutions that improve user experience and business outcomes. Throughout my career, I've worked with diverse clients, from enterprise companies like IKEA and Lululemon to startups, helping enhance software performance and optimize delivery processes. I'm passionate about learning new technologies and continuously improving my skills to deliver the best results in every project I undertake.…Hi, I'm Sumit Kumar Das, a logical and result-driven software developer with over 7 years of experience in building and optimizing user-focused web applications. I specialize in front-end and full-stack development, working with technologies like React, TypeScript, and various back-end frameworks. I love collaborating with teams to create efficient, scalable solutions that improve user experience and business outcomes. Throughout my career, I've worked with diverse clients, from enterprise companies like IKEA and Lululemon to startups, helping enhance software performance and optimize delivery processes. I'm passionate about learning new technologies and continuously improving my skills to deliver the best results in every project I undertake.

Available to hire

Hi, I’m Sumit Kumar Das, a logical and result-driven software developer with over 7 years of experience in building and optimizing user-focused web applications. I specialize in front-end and full-stack development, working with technologies like React, TypeScript, and various back-end frameworks. I love collaborating with teams to create efficient, scalable solutions that improve user experience and business outcomes.

Throughout my career, I’ve worked with diverse clients, from enterprise companies like IKEA and Lululemon to startups, helping enhance software performance and optimize delivery processes. I’m passionate about learning new technologies and continuously improving my skills to deliver the best results in every project I undertake.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Work Experience

Freelance Developer at Self-employed

July 1, 2025 - Present

Designed, developed, and hosted custom WordPress websites tailored to small business needs to improve online presence and customer engagement. Provided ongoing maintenance and technical support resolving bugs and performance issues. Implemented e-commerce integrations, contact forms, and SEO enhancements. Managed domain, hosting configurations, SSL setup, and plugin updates. Collaborated closely with clients and trained them on content management.

Web Developer at QuadoTek Inc

August 1, 2024 - August 1, 2025

Developed responsive, SEO-optimized websites using HTML, CSS, JavaScript, TypeScript, and React that improved user experience and boosted client inquiries by 20%. Implemented performance enhancements such as lazy loading, image compression, and code minification. Migrated and optimized legacy websites resulting in a 10% increase in organic traffic and improved client intake rates.

Router at GoBolt Technologies

August 1, 2024 - Present

Collaborated with leadership to analyze and recommend enhancements for the routing software, improving overall delivery performance and operational efficiency. Optimized truck routing using logistics software for major clients including IKEA and Lululemon. Planned and managed driver capacity and delivery schedules to ensure on-time and efficient shipment fulfillment.

Program Co-ordinator at Jevick Consultancy Services

February 1, 2024 - August 1, 2025

Introduced student programs to clients and stakeholders, addressed any issues or challenges during implementation, communicated with team members, management, participants and other parties. Developed and outlined program objectives, timelines, and schedules, creating detailed plans, setting goals, and coordinating resources to ensure smooth execution.

Full Stack Developer at IRIS CX

August 31, 2023 - August 1, 2025

Developed and deployed the “Device Selection” feature using React and TypeScript. Designed and maintained scalable front-end components implementing reusable UI patterns. Led full revamp of the company’s web application, modernizing the front-end and optimizing Laravel APIs, improving performance and user engagement by 30%. Collaborated cross-functionally with product managers, UX designers, and QA teams to deliver aligned features.

Senior Software Developer L1 at Publicis Sapient

May 31, 2023 - August 1, 2025

Managed leading e-commerce North American L'Oreal brands using React, SFRA, and Demandware. Improved revenue by 30% during holidays. Built critical e-commerce features and supported bug fixes in SFCC. Refactored site speed improving customer dropouts by 10%. Participated in code deployments and involved in issue analysis, fixing, ticket estimation, and sprint planning using Agile. Minimized offshore dependency after takeover.

Associate Software Developer L2 at Publicis Sapient

September 30, 2022 - August 1, 2025

Developed e-commerce platform for a leading cosmetics brand. Implemented critical modules improving performance, checkout, and accessibility, generating 30% more revenues. Built a single-page application with React to enhance checkout flow, integrated Virtual Try On and Shade Finder, increasing traffic by 25%. Led front-end team, interviewed and mentored new members, and performed code reviews.