Skilled in Flutter, Python, SQL, REST APIs, and modular architectures with a strong focus on performance, reliability, and clean engineering principles.
Reduced latency by replacing polling with WebSocket real-time communication.
About
Senior Application Engineer building production-grade systems.
Appu M joined Herin Electronics in Jan 2023 and brings 3+ years of hands-on experience across mobile engineering, backend architecture, and IoT integrations. Focused on performance, scalability, and clean engineering principles.
Summary
Senior Application Engineer with 3+ years of hands-on delivery.
Built and shipped production systems, optimized backend workflows, and delivered real-time IoT dashboards for business-critical monitoring.
Experience across mobile apps, cloud services, and embedded integrations.
Technical Skills
Core competencies and platforms.
Mobile Development
Flutter, Dart, Android/iOS deployment, deep linking, push notifications.
Play Store
App Store
Responsive UI
Performance
Backend & Cloud
REST APIs, Python, SQL, Firebase, AWS (EC2/S3), Ubuntu servers.
JSON
Postman
WebSockets
Monitoring
Architecture & State
Clean Architecture, MVVM, Modularization, Bloc, Provider, Riverpod.
CI/CD
GitHub Actions
Testing
Profiling
IoT & Hardware
RS-485, Modbus, TCP/IP, MQTT, CAN protocol, PLC.
SIMCOM A7672S
Waveshare displays
ESP32
Embedded Development
ESP-IDF, Arduino, MicroPython, register-level control.
Temperature control
Serial pipelines
Additional Strengths
Clean Code, Debugging, Agile/Scrum, AWS, Problem Solving.
Team leadership
Stakeholder alignment
Experience
Professional roles and delivery impact.
Senior Application Engineer
Designed end-to-end architecture for HEIoT Dashboard (anvay.herin.in).
- Implemented WebSocket real-time communication to reduce latency.
- Strengthened backend data pipelines for throughput and consistency.
- Aligned UI, backend, and hardware teams on delivery roadmap.
Software Development Engineer
Delivered Flutter and backend features across IoT and business dashboards.
- Built real-time IoT visualization modules and data flows.
- Added offline sync, notifications, and subscription capabilities.
- Optimized SQL queries for faster execution.
Application Engineer
Built cross-platform apps with streaming, chat, PDFs, and dynamic content.
- Published apps with 5,000+ installs and deep linking.
- Cut report preparation time by 30% with improved dashboards.
- Integrated RS-485/Modbus and TCP/IP device pipelines.
Education
Academic foundation.
BCA - Davangere University
2019-2022 - CGPA 8.9 - Karnataka
MCA - KSOU Mysore
2023-2025 - 84.5% - Karnataka
Certifications
HackerRank certifications.
Links
Connect or explore more of my work.