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I'm a senior full stack MERN developer with over 6 years of experience building web applications from the ground up. I specialize in React on the frontend and Node/Express on the backend, creating RESTful APIs and driving agile project cycles. I'm a big believer in SOLID principles, CI/CD pipelines, and clear communication, whether I'm working independently or as part of a team, and I enjoy tackling challenges head-on.…I'm a senior full stack MERN developer with over 6 years of experience building web applications from the ground up. I specialize in React on the frontend and Node/Express on the backend, creating RESTful APIs and driving agile project cycles. I'm a big believer in SOLID principles, CI/CD pipelines, and clear communication, whether I'm working independently or as part of a team, and I enjoy tackling challenges head-on.

Adeel Sarim

Back-End Developer, Full Stack Developer, Developer, +3

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I'm a senior full stack MERN developer with over 6 years of experience building web applications from the ground up. I specialize in React on the frontend and Node/Express on the backend, creating RESTful APIs and driving agile project cycles. I'm a big believer in SOLID principles, CI/CD pipelines, and clear communication, whether I'm working independently or as part of a team, and I enjoy tackling challenges head-on.…I'm a senior full stack MERN developer with over 6 years of experience building web applications from the ground up. I specialize in React on the frontend and Node/Express on the backend, creating RESTful APIs and driving agile project cycles. I'm a big believer in SOLID principles, CI/CD pipelines, and clear communication, whether I'm working independently or as part of a team, and I enjoy tackling challenges head-on.

Available to hire

I’m a senior full stack MERN developer with over 6 years of experience building web applications from the ground up. I specialize in React on the frontend and Node/Express on the backend, creating RESTful APIs and driving agile project cycles.
I’m a big believer in SOLID principles, CI/CD pipelines, and clear communication, whether I’m working independently or as part of a team, and I enjoy tackling challenges head-on.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Senior Python Developer at BuzzSols

January 1, 2021 - Present

Designed and deployed a Django-based microservices platform for fintech analytics, reducing API latency and handling high traffic. Built real-time data pipelines with FastAPI and Celery, cutting ETL time from 6 hours to 1 hour. Optimized PostgreSQL performance with indexing and query tuning to lower costs. Migrated legacy Flask systems into modular services improving deployment speed and stability. Implemented auto-scaling Kubernetes clusters with DevOps, reducing AWS costs. Mentored junior developers on clean coding and testing, achieving 90% code coverage.

Python Backend Engineer at Sphere Software Labs

December 31, 2019 - September 2, 2025

Converted monolith applications into Python-based microservices using Flask and FastAPI, improving speed by 40% with Redis and WebSocket integration. Automated financial reporting with Pandas, reducing errors by 30%. Built fraud detection with Scikit-learn achieving 96% accuracy, reduced bugs by 40% through automated testing with Pytest and Cypress. Migrated databases from MongoDB to PostgreSQL using SQLAlchemy enhancing query performance. Developed backend APIs with Django REST and frontend features using React.js. Deployed applications on AWS, GCP, and Heroku for seamless scalability.

Python Developer at Quinnox

December 31, 2018 - September 2, 2025

Reduced support tickets by 30% by developing a patient data dashboard using Django and Plotly. Enhanced data security by implementing HIPAA-compliant systems for 100 users with IDS and SSL features. Created a real-time notification system using Flask and WebSockets. Improved backend performance with Django ORM optimization. Documented API workflows in Open API for faster onboarding.

Senior Full Stack Developer at BuzzSols

January 1, 2021 - Present

Remote-led migration of a platform to a microservices architecture using React, Node.js, and MongoDB, cutting API latency by 40% and improving uptime for daily users. Built multiple reusable React components with TypeScript and Storybook, adopted by 4 product teams to standardize UI development and reduce feature delivery time by 30%. Designed REST APIs for real-time patient analytics, integrating Elasticsearch and Socket.io to enable instant dashboards for clinicians. Slashed MongoDB query costs by 55% through indexing and aggregation pipeline optimizations for large-scale datasets. Streamlined onboarding by integrating Plaid/Stripe APIs, reducing ACH/KYC processing time.

Remote Frontend Engineer at Sphere Software Labs

December 31, 2019 - September 16, 2025

Remote engineered end-to-end applications utilizing React.js, Node.js, Express.js, and MongoDB, enhancing development productivity by 20%. Created fraud detection dashboards with React and D3.js, cutting manual reconciliation work for risk analysts. Slashed MongoDB query costs through indexing and aggregation optimizations. Streamlined UI development and standardized components across teams.

Front-End Developer at Quinnox

December 31, 2018 - September 16, 2025

Built a patient portal using React/Redux for users to manage insurance claims; automated frontend deployments using Jenkins, slashing build times from 8 minutes to 90 seconds. Enhanced accessibility by refactoring 30 navigation components; standardized UI patterns across the product.

Senior Full Stack Developer at BuzzSols

March 20, 2023 - November 25, 2025

Remote role focused on migrating platform to a microservices architecture using React, Node.js, and MongoDB; reduced API latency by 40% and improved uptime for daily users. Built reusable React components with TypeScript and Storybook, adopted by 4 product teams to standardize UI development and reduce feature delivery time by 30%. Designed REST APIs for real-time patient analytics, integrating ElasticSearch and Socket.IO to enable instant data dashboards for clinicians. Slashed MongoDB query costs by 55% through indexing and aggregation pipeline optimizations for large-scale EHR datasets. Mentored junior developers through code reviews and pair programming, boosting the team sprint completion rate by 25% in 6 months. Partnered with DevOps to deploy Docker containers and AWS Lambda, trimming annual cloud spend in half.

Full-Stack Developer at Sphere Software Labs

February 1, 2023 - February 1, 2023

Remote end-to-end applications utilizing React.js, Node.js, Express.js, and MongoDB, increasing development productivity by 20%. Created a fraud detection dashboard with React and D3.js, cutting manual reconciliation work by 70% for risk analysts. Streamlined user onboarding by integrating Plaid/Stripe APIs, reducing ACH/KYC processing time. Improved PostgreSQL performance by optimizing schemas and connection pooling, achieving faster query speeds. Wrote redesigned mobile-responsive UIs with CSS Grid, increasing mobile user retention by 45% in 8 months. Upgraded Rails 4.2 to 6.0 for a mission-critical app, resolving deprecation warnings and improving security compliance.

Front End Developer at QuinNox

February 1, 2020 - February 1, 2020

Built a patient portal with React/Redux for users to manage insurance claims, earning a 4.8/5 satisfaction rating. Automated front end deployments using Jenkins, slashing build times from 8 minutes to 90 seconds. Enhanced accessibility by refactoring 30 navigation components and improving keyboard navigation. Remote role.