About

Senior Application Engineer building production-grade systems.

Appu M combines mobile engineering, backend architecture, and IoT integrations to ship reliable, high-performance products. Focused on performance, scalability, and clean engineering principles.

Summary

Senior Application Engineer with ~3 years of hands-on delivery.

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.

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

De© 2025 – Present Herin Electronics

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

Jan 2025 – Nov 2025 Herin Electronics

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

Jan 2023 – Jan 2025 Herin Electronics

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.