Hi, I am
SanjeevSingh.
You have an idea.
I engineer it to production.
I'm a software engineer who takes products from first commit to production — real-time chat apps on the stores, serverless cloud backends, and ML-powered pipelines. Fast, reliable, and finished to the last detail.
02.
AlignTogether Solutions Pvt. Ltd.
Software Development Engineer - IIOct 2024 – PresentBhopal, M.P, India
01
Radar Pose Estimation
- ▹Researched and implemented mmWave radar point cloud to human skeleton prediction for posture recognition.
- ▹Built a data processing pipeline generating a ~150K-sample dataset from raw radar recordings.
- ▹Trained a TensorFlow/Keras model predicting human skeletal joints from radar point cloud data.
- ▹Generated 3D human mesh and skeleton labels with ExPose for supervised model training.
- ▹Streamed live radar data over MQTT to visualise real-time skeletal motion from point clouds.
PythonTensorFlowKerasMQTTExPosePyQt5FFmpegNumPyPandas
02
Conversational Voice AI
- ▹Built a service bridging live telephony call audio with a conversational AI provider over WebSockets.
- ▹Designed a concurrency-capped FIFO dispatch queue with request dedupe and in-place replacement.
- ▹Handled missed-call callbacks and working-hours-aware retry scheduling across timezones.
- ▹Mapped per-programme agent configuration and conversation variables from CRM lead fields.
- ▹Automated meeting scheduling through Google Meet and Calendar APIs.
PythonFastAPIWebSocketsAsyncioSQLiteAWS EC2
03
Serverless Workflow Migration
- ▹Migrated 30+ business workflows from a no-code database to PostgreSQL.
- ▹Rebuilt them on an event-driven AWS serverless architecture using Lambda, EventBridge, SQS, and SES.
- ▹Implemented SQS-based message queuing and SES for automated email notifications.
- ▹Used EventBridge for time-based automation and orchestration of workflows.
- ▹Developed the Node.js backend managing APIs, data pipelines, and automation logic.
Node.jsPythonAWS LambdaEventBridgeSQSSESPostgreSQLDockerRedis
04
Real-Time Chat & Calling App
- ▹Built cross-platform Flutter apps published to both the Play Store and the App Store.
- ▹Implemented real-time messaging over Socket.IO and Matrix SDK with media, receipts, and roles.
- ▹Integrated native Twilio audio and video calling for Android and iOS with stable call performance.
- ▹Integrated 100+ backend APIs covering chat, user management, and application features.
- ▹Added offline-first Realm and Hive storage with local sync, plus Firebase push notifications.
FlutterDartBLoCSocket.IOMatrix SDKTwilio SDKRealmHiveFirebaseAndroidiOS
05
Document Verification & ERP Sync
- ▹Owned a document-verification feature end to end across the data, business, and API layers.
- ▹Built two-way sync with a freight ERP, using version watermarking to avoid re-sending documents.
- ▹Implemented inbound webhooks for verification verdicts and operations-uploaded documents.
- ▹Enforced a state machine guarding document removal, approval, and entity-type transitions.
- ▹Hardened the flow with atomic transactions, scoped lookups, streamed uploads, and named error codes.
PythonFastAPIPostgreSQLSQLAlchemyAlembicAWS S3Webhooks
06
Bulk Lead Importer
- ▹Replaced ORM-based import with direct transactional SQL, cutting multi-hour imports to seconds.
- ▹Added Postgres-native deduplication on phone and email at insert time.
- ▹Designed a two-phase flow that pre-resolves every relation before writing, aborting cleanly on mismatch.
- ▹Wrapped each row in a SAVEPOINT so a single bad row cannot fail the whole batch.
- ▹Supported dry-run imports with full rollback and grouped error reporting.
PythonPostgreSQLRaw SQLOdoo ORM
Affirmity Corp
Software Development Engineer InternDec 2023 - Sep 2024Bhopal MP, India
01
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.
FlutterDartPythonOpenCVMySqlElastic SearchMTCNN
02
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.
FlutterDartPythonOpenCVMySqlFaceNetYOLOv8
03
Corporate Marketing 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.
ReactNode.jsExpressMySQLTailwindFramer MotionGSAP
03.
Win Rewrite
A cross-platform desktop utility that rewrites any selected text in place using the Google Gemini API with a single hotkey.
AutoHotkeyLuaGemini APIDesktop
04.
A comprehensive list of my technical skills and competencies.
Languages
PythonTypeScriptJavaScriptDartSQL
Python
FastAPIFlaskOdooSQLAlchemyPandasNumPyAsyncio
AI/ML
PyTorchTensorFlowKerasOpenCVYOLOv8Scikit-learnFFmpeg
JavaScript & Web
Next.jsReactNode.jsExpress.jsHTMLCSSTailwind CSSREST APIs
Mobile
FlutterBLoCRealmHiveFirebaseAndroidiOS
Database
PostgreSQLMySQLMongoDBSQLiteRedis
Cloud & Infra
AWS LambdaSQSSESEventBridgeS3EC2DockerKafkaMQTT
Tools
GitPostmanFigmaLinux
Practices
CI/CDGit FlowCode ReviewTestingEvent-Driven DesignSystem DesignAgile/Scrum
05.
My academic journey and qualifications that have shaped my knowledge and skills.
2020 - 2024
Bachelor of Technology in Computer Science and Engineering
Sagar Institute of Science and Technology, Bhopal
Graduated with a CGPA of 8.5, specialising in software engineering, data structures, and algorithms. Built full-stack web and machine learning projects through the degree, and started working professionally as a developer before graduating.
2019
Higher Secondary Certificate
O.P Jindal School, Jharkhand
Completed with a focus on Physics, Chemistry, and Mathematics. Participated in various science fairs and competitions.
2017
Secondary School Certificate
D.A.V Public School, Jharkhand
Graduated with a focus on Science and Mathematics. Actively participated in extracurricular activities and sports.
06. what's next?
Have a project in mind, a role to fill, or just want to say hi? My inbox is always open — I'll get back to you as soon as I can.