Software Engineer

Building Scalable & User-Centric Solutions

I enjoy building full-stack applications and focus on architecting scalable backends and creating clean, responsive frontends that solves real user needs.

Sahil Patel

Montreal, Canada

Hi, I'm Sahil, another software engineer based in Montreal.

My focus for past few years has been on building software that solves tricky, real-world problems. I genuinely enjoy the entire process of talking through an idea, to building it out, and then making sure it's solid and reliable for the people who use it every day.

My experience is largely in mission-critical systems where reliability is non-negotiable. This has led me to focus on streamlining complex processes, building robust observability stacks from the ground up, and understanding the business importance of quality and compliance through working with Quality Management Systems.

When I'm not on the clock, I'm usually tinkering with something, whether it's a freelance project or just learning a new tool. If you have a challenging problem, I'd love to hear about it.

Professional Experience

Showcasing my past roles and accomplishments

Full Stack Engineer

Jul 2023 – Present | Cold Chain Science | Montreal, QC

QMS & ISO-9001 Health Canada Compliance Java Spring Boot Nuxt3 & Vue.js Android Python Docker LoRaWAN

Product Development & Innovation

  • Played a key role in achieving the company's ISO-9001 certification, explaining critical R&D systems to auditors and authoring Corrective and Preventive Actions (CAPAs) to maintain the Quality Management System (QMS) in compliance with Health Canada guidelines.
  • Led the rapid end-to-end development of the UNI°COLD Display product, taking it from concept to a market-ready solution in under 1 month.
  • Architecting and developing a new sensor calibration application to automate the generation of compliance certificates; the system integrates directly with the UNI°COLD platform to replace a lengthy manual process, aiming to reduce certificate generation time by over 60%.
  • Built a secure internal BI tool in Python to run custom SQL queries and export data (CSV/PDF), enabling management insights without risking production DB performance.

DevOps & Infrastructure Modernization

  • Led the migration of the entire CI/CD infrastructure from a high-maintenance, self-hosted Jenkins to modern GitHub Actions, eliminating technical debt and standardizing deployment workflows across all services.
  • Authored a comprehensive revamp of deployments that automated a high-risk release process, reducing deployment times from ~1 hour to under 5 minutes and improving reliability with pre-flight validation checks.
  • Developed a suite of LoRaWAN analysis tools to provide real-time visibility into network health at client sites, enabling a proactive support model that identifies and resolves issues before they impact the customer.

Back End Developer

July 2022 – July 2023 | Cold Chain Science | Montreal, QC

Python Java Spring Boot Grafana Loki InfluxDB PostgreSQL Jenkins .NET Six Sigma

IoT Systems & Backend Architecture

  • Collaborated directly with the CEO of hardware manufacturer Dragino to diagnose and resolve a critical LoRaWAN data loss issue, restoring data integrity across all client deployments.
  • Established a comprehensive observability stack with Grafana, integrating metrics (InfluxDB, Telegraf) and centralized logging (Loki, Promtail) to provide key data that guided deployment strategies and optimization of cloud resources.
  • Authored Python scripts for automated data archival and optimized critical PostgreSQL queries for report generation to achieve a 30% boost in read performance.
  • Refactored the automated reporting service to isolate data corruption errors, preventing job failures and ensuring uninterrupted report generation for clients.

Process Improvement & Technical Leadership

  • Applied Six Sigma principles to develop a Python automation tool for sensor provisioning that reduced task time by over 98% (from 4 hours to <5 minutes for a 250-sensor batch).
  • Evolved the script into a sustainable, documented Google Colab notebook for team-wide use, empowering technicians and onboarding over 600 new sensors and counting.
  • Took full ownership of the legacy UNI°COLD platform upon joining, stabilizing the system and acting as the primary technical escalation point for all internal and client-side issues.
Open-Source Work

Projects I've been involved in.

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Birdle: Medium Clone with Appwrite

Built during Appwrite Hackathon, this open-source Medium clone features real-time collaboration, markdown editing, and user authentication.

Nuxt3TailwindAppwrite
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IP Tracker

IP Tracker is a weekend project designed to retrieve important information about an IP address, including its potential location. It loads current location of the user and shows it on the map.

HTMLTailwindLeaflet.jsIP API
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Gradient Generator

The Gradient Generator web application creates dynamic gradients, allowing users to customize color directions. Crafted with React and Tailwind, it allows user to copy the gradient code to use in their projects.

ReactTailwind
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TeleScope

A complete, open-source Application Performance Monitoring (APM) stack designed to replicate Datadog's functionality. The project uses an OpenTelemetry-instrumented FastAPI app, with Tempo for distributed tracing and Prometheus for metrics, all visualized in Grafana.

PythonFastAPIOpenTelemetryGrafanaPrometheusTempoDocker
Get in Touch With Me

I'm always interested in connecting with talented individuals and companies. Whether you have a project in mind, want to discuss technology, or just want to say hello, I'd love to hear from you!