SANDEEP KUMAR
Senior Full-Stack Developer Technical Lead
Mobile: +91-971******* Email: ***************@*****.***
Address: Delhi-NCR
LinkedIn: linkedin.com/in/sandeep-kumar-628a1618
GitHub: github.com/sandysandeep441
Professional Summary
Senior Full-Stack Developer and Technical Lead with 10+ years of experience building and scaling cloud-native B2B/B2C platforms. Proven track record in modernizing legacy systems, leading cross-functional teams, and delivering high-availability applications on AWS using Docker, Kubernetes (EKS), and CI/CD pipelines. Strong expertise in PHP, Node.js, React, system architecture, security (OIDC/SSO), and performance optimization.
Area Of Expertise
Backend: PHP (Laravel, Zend, Symfony), Node.js, REST APIs
Frontend: JavaScript, React, Angular, jQuery, HTML5, CSS
Cloud & DevOps: AWS, Docker, Kubernetes (EKS), GitLab CI/CD, Jenkins
Databases: MySQL, PostgreSQL, MongoDB
Monitoring: Datadog, Splunk
Security: OIDC, SAML, IAM (IRSA)
Payments: Stripe, PayPal, GoCardless
Professional Experience
Future Focus InfoTech (Billtrust— US, Remote)
Technical Lead Apr 2023 – Present
Maintain and optimize a large-scale B2B/B2C invoicing platform.
Identify and resolve production issues using Datadog and Splunk.
Upgrade PHP, MySQL version for a high-volume invoicing platform, achieving zero downtime and improved system stability.
Modernize legacy architecture by introducing Node.js REST APIs and migrating UI from jQuery to React.
Design and implement Docker and AWS EKS deployments with OIDC-based authentication.
Build and optimize GitLab CI/CD pipelines to improve release velocity.
Mentor developers, conduct code reviews, and actively participate in sprint planning.
Tech Stack: PHP, Laravel, Zend, Symfony, Node.js, React, MySQL, Redis, AWS, EKS, Docker, GitLab CI/CD, OIDC, Datadog, Splunk
Heptagon Technology (Quess Corp) — Remote
Senior PHP Developer Dec 2021 – Feb 2023
Implemented major features including user engagement, notifications, and bulk email workflows using SNS/SQS (Spin-the-Wheel, Quizzes, Rewards, Leaderboards).
Migrated Lumen 6 8.x, improving performance and compatibility.
Worked extensively with AWS S3, SNS, SQS, CloudFront, and Secrets Manager.
Performed requirement analysis, solution design, and optimized database structures.
Provided team leadership and mentoring for successful project delivery.
Tech Stack: PHP (Lumen), PostgreSQL, Node.js, Angular, JavaScript, AWS, Docker, Webhooks
IRIS Worldwide (iris-worldwide.com)
Senior PHP Developer Jun 2018 – Dec 2021
Managed server infrastructure and application deployments for performance and scalability.
Integrated payment gateways (Stripe, PayPal, GoCardless) using secure webhook workflows.
Automated build and release processes using Jenkins CI/CD.
Developed full-stack applications using PHP, Laravel, Node.js, and React.
Contributed to Samsung Backstage LMS (Moodle), implementing quizzes, rewards, leaderboards, and batch management.
Mentored developers and supported cross-team collaboration.
Tech Stack: PHP (Laravel, Moodle), MySQL, Node.js, JavaScript, jQuery, AWS, GCP, React, Jenkins, Jira, Git
Silver Maple Healthcare Services Pvt. Ltd. (dhiindia.com)
Senior PHP Developer Dec 2017 – Jun 2018
Analyzed website traffic using Google Analytics to improve performance and UX.
Integrated Facebook APIs for social features and engagement.
Used Gulp to optimize frontend performance and development workflows.
Tech Stack: PHP (Laravel, WordPress), MySQL, AWS, JavaScript, jQuery, Google/Facebook Analytics
IRIS Worldwide
PHP Developer Feb 2016 – Dec 2017
Developed dynamic web applications using PHP and modern frontend technologies.
Built static websites and optimized performance using Grunt and Gulp.
Tech Stack: PHP, Laravel, MySQL, JavaScript, jQuery, WordPress, OpenCart, Jira, Git
Professional Project
Project Name
Technology
Key features
Billtrust Invoicing Project
(CSR,CC,EIC) other Micro Services application
PHP (Laravel, Zend, Symfony),Rest API, MySQL, Node, React, JQuey, Kendo-UI, SSO,SAML, Docker, EKS, OIDC, CI/CD pipeline, Terragrunt,
Billtrust provides automated payment solutions and invoicing services to B2B and B2C businesses.
DASH- employee benefits
(Microservices)
PHP, Lumen, Laravel, Node, RestAPI,
angular, Docker,
Jankins, CI/CD AWS S3, SNS, SQS, CloudFront, and Secrets Manager
DASH is an employee benefit and financial wellness platform., gamification features (Spin-the-Wheel, Quiz, Rewards, Leaderboards).
Silvergenie
Node.js, Strapi,MongoDB and React.js, Rest API
To provide medical facilities for elderly persons
Built full-stack APIs with Node.js/Strapi and frontend in React.js
Beejameditation
PHP, MySQL, Laravel, AWS, RestApi, jQuery, SSL, Ajax, HTML and CSS
This is online meditation course website where user can buy meditation classes slots. Payment methods are Stripe,
GoCardless, PayPal
hugheseducation
PHP, MySQL, Laravel, AWS, jQuery, SSL, Ajax, html and CSS
This is online lead capturing website where students get information to different colleges.
Dugoutcaptain
PHP(CodeIgniter), MySQL, JQuery, Ajax, jQuery Template,
This is online web software where coaches make a practice plan and share them with teams and players.
Ginocerruti
PHP, MySQL, JavaScript, Ajax, jQuery, Smarty 3.1, HTML, CSS
This is the online website on which user can see the dresses and information about the company with their nearby retailers.
Samsungbackstage
Linux, totara LMS - Php, PostgreSQL, jQuery, Ajax
Samsung Backstage is a learning platform for suppliers to learn about new products and participate in quizzes. Based on this, we provide a badge and reward system
Wholesalegown
PHP, MySQL, JavaScript, Ajax, jQuery, Smarty 3.1, HTML, CSS
This is an online shopping website based on Smarty. In this, any customer purchases dresses and makes an order and the customer also sees their recent orders and invoices also.
Education
Bachelor of Engineering (Electronics & Communication)
SVCST Bhopal RGTU Bhopal 2007–2011
Languages Known : Hindi, English