Hello, I'mSanjeev Singh
I build exceptional digital experiences with a focus on clean design and intuitive interactions. Passionate about creating beautiful, functional interfaces that solve real problems for users.

Work Experience
A chronological journey through my professional career, highlighting key roles and achievements.
AlignTogether Solutions Pvt. Ltd.
Software Development Engineer - II
Frontend & Mobile Development
- •Built scalable cross-platform mobile applications using Flutter with clean and modular architecture.
- •Developed complete real-time chat systems using Socket.IO and Matrix SDK with media, receipts, and roles.
- •Integrated native Twilio video calling for Android and iOS with smooth Flutter UI integration.
- •Implemented offline-first storage using Realm and Hive with advanced local syncing logic.
- •Developed secure authentication flows, push notifications, and dynamic deep linking.
- •Created responsive and accessible UI designs following best UX and state management practices (Bloc/Provider).
Backend & Cloud Engineering
- •Built backend APIs in Node.js and Python (Flask) with secure routing, validation, and database layers.
- •Migrated 30+ workflows to a serverless AWS architecture using Lambda, EventBridge, SQS, and SES.
- •Designed scalable database schemas and optimized queries for PostgreSQL and MySQL.
- •Implemented event-driven pipelines for automation, notifications, and asynchronous processing.
- •Deployed Kafka, MQTT brokers, and Redis caching layers using Docker on AWS EC2.
- •Developed real-time communication services and IoT data pipelines with efficient message handling.
AI/ML & Data Science
- •Developed end-to-end ML pipelines for training, evaluation, and deployment of AI models.
- •Built computer vision modules for image/video processing using OpenCV and PyTorch.
- •Created automated preprocessing workflows for cleaning, augmenting, and transforming datasets.
- •Implemented efficient video processing and extraction using FFmpeg for analytics workflows.
- •Optimized model inference, data loading, and training loops for GPU/CPU environments.
- •Designed reproducible experiments, logging systems, and evaluation metrics for ML research.
Affirmity Corp
Software Development Engineer Intern
Drone Feed Analysis
- •Created a Flutter desktop app for drone video analysis tasks.
- •Used OpenCV and MTCNN for object detection and tracking.
- •Stored real-time event data using MySQL relational schema.
- •Enabled fast filtering and query using Elastic Search tool.
- •Built custom UI/UX for navigating drone-based detection.
Perimeter Security System
- •Built a desktop app with face and object recognition in Flutter.
- •Used YOLOv8 and FaceNet for high-accuracy surveillance.
- •Managed user data and logs in a MySQL relational database.
- •Enabled real-time alerts and access control via detection.
- •Designed interfaces for administrators to view live feed.
Affirmity Corp Website
- •Developed responsive website UI using React and Tailwind CSS.
- •Added dynamic animations with GSAP and Framer Motion APIs.
- •Implemented backend using Express and Node.js services.
- •Managed contact forms and CMS data using MySQL backend.
- •Optimized web performance and SEO using modern practices.
Projects
A selection of my recent work, showcasing my skills and experience in software development.
Education
My academic journey and qualifications that have shaped my knowledge and skills.
Bachelor of Technology in Computer Science and Engineering
Sagar Institute of Science and Technology, Bhopal
Graduated with a CGPA of 8.5. Specialized in software development and data structures.Led a team project on building a full-stack web application.
Higher Secondary Certificate
O.P Jindal School, Jharkhand
Completed with a focus on Physics, Chemistry, and Mathematics. Participated in various science fairs and competitions.
Secondary School Certificate
D.A.V Public School, Jharkhand
Graduated with a focus on Science and Mathematics. Actively participated in extracurricular activities and sports.
Skills
A comprehensive list of my technical skills and competencies.
Frontend
Backend
Database
Tools
AI/ML and Data Science
Methodologies
Get In Touch
Feel free to reach out if you're interested in working together or just want to connect.
Contact Information
I'm currently available for freelance work or full-time positions.