MICHAEL LOWENSTEIN
Calgary,AB
Summary
Results-driven software engineer with expertise in machine learning, microservices architecture, and modern front-end frameworks. Proven success in leading projects that integrate AI-driven features, optimizing backend systems, and enhancing stakeholder collaboration.
Overview
10
10
years of professional experience
Work History
Senior Freelance Software Engineer
1280 Labs Inc. & Independent
03.2025 - Current
- Team Lead on the front-end application for new AI-enabled Talent Management CRM
- Engineered a suite of backend services using Python, Node.js, and Redis
- Developed and maintained Flutter-based mobile client and Angular web dashboard
- Authored the entire client-side token management and authentication route-mapping system using an Auth0-based JWT token schema
- Maintained automated testing suites and provided production-level observability
- Prototyping of Back-End services in different frameworks - Ruby on Rails, Golang, Rust, NodeJS, Python, .NET CORE
- Architected high-throughput microservices handling concurrent user sessions and real-time data processing, implementing distributed caching strategies and horizontal scaling patterns that would translate directly to blockchain transaction processing systems
- Built resilient message queue systems for cross-service communication, designing fault-tolerant architectures with retry mechanisms and dead letter queues essential for financial transaction reliability and audit trails
- Led the integration of AI-driven features for device diagnostics and behavior analytics
Senior Back-End Software Engineer
College House at House Analytics
09.2024 - 03.2025
- Design and implement enterprise-scale .NET Core solutions, including CQRS Web APIs, database administration, and AWS infrastructure integrations
- Led the planning, prototyping, and deployment of back-end infrastructure for analytics products, modernizing legacy systems and creating a test automation framework to enhanced efficiency and scalability
- Accomplished the design and prototyping of a state-of-the-art Message Bus architecture, exploring a range of technologies like AWS MQ/SQS, RabbitMQ, Redis, and Kafka to maximize communication effectiveness and reliability.
- Successfully integrated advanced machine learning features into production systems, leading to improved planning, presentation, testing, and deployment processes.
- Collaborate directly with stakeholders to future-proof products, ensuring alignment with business goals, and author detailed documentation for end-users and internal teams
Senior Software Engineer
NCAL Engineering
01.2024 - 02.2025
- Implement ETL processes to synchronize time-tracking APIs with production databases using NestJS, NodeJS JWT Token Authentication, Python scripting for setup & teardown of short-lived servers, and Redis Cache APIs - Golang was used for heavier workflows due to performance bottlenecks
- Build and extend a custom data management warehouse for engineering graphics and metrics using Angular 16/17, .NET Core Authentication APIs, and supporting NodeJS microservices - highlights include building a full authentication infrastructure characterized by Role-Based Access Control (RBAC) using Angular and .NET Core with Auth0
- Design and deploy invoice automation and analytics dashboards leveraging Angular 16, React UI, and C# .NET Core Authentication APIs, supported by NodeJS microservices for caching, file storage, and database access
- Manage DevOps pipelines and deployments using Azure Containers, App Services, in-house remote VMs, and Docker Compose to ensure seamless integration and system reliability
- Designed and deployed an Invoice Automation Platform, saving the Senior Engineer and Founder a full week of hours every month, streamlining financial workflows
Senior Software Engineer
FullStack Labs
12.2021 - 12.2023
- Led the planning, design, and implementation of front-end systems for a Custom Cabinetry CRM/Project Management Application
- Identified and co-led the refactoring and integration of Functional Components into the flagship FSL Admin Application.
- Authored back-end ETL applications using Typescript, Node.js Express, and NestJS frameworks - global invoicing accuracy improved from 95.1% to 99.8%.
- Machine Learning R&D for ETL pipelines - migration of high-throughput + low-latency workflow to Golang and Rust for performance comparison.
- Engineered high-availability ETL pipelines processing financial data with 99.8% accuracy, implementing robust error handling, transaction rollbacks, and data integrity checks critical for financial services compliance
- Developed and maintained the front-end architecture for an Enterprise Association Management Portal - this was highlighted by co-authoring a large-scale migration of over 10,000 users from legacy IdentityServer to Auth0 for a flexible User, Group & Custom Authentication protocol.
Software Engineer
Peloton Computer Enterprises
12.2016 - 12.2021
- Developed a new web application, ProdView, for task scheduling and operations in the oil and gas sector
- Introduced and led the frontend implementation of OAuth2 and OpenID Connect (OIDC) authentication across the company's infrastructure using Angular 7-9
- Designed and implemented Angular front-end MVPs to showcase features before full-scale planning
- Maintained and enhanced the Land Management System for oil and gas clients
- Managed Linux servers, optimized PostgreSQL and FreeBSD systems
- Rebuilt legacy systems as polished microservices/pilots using modernized tools and frameworks - Ruby on Rails, NestJS, Golang, Rust
- Developed distributed task scheduling systems for oil & gas operations, creating reliable job queues and worker processes that mirror the architectural patterns used in blockchain networks and cryptocurrency mining coordination
- Implemented secure API gateways and authentication middleware for financial data access, building authorization layers and rate limiting systems essential for protecting high-value financial transactions and user account security
Software Developer
SIACharts (SIA Wealth Management)
12.2015 - 12.2016
- Rebuilt a legacy software application using modern web technologies
- Developed a suite of financial market tools
- Utilized MSSQL Server, ASP.NET (C#), JavaScript, jQuery, Bootstrap, and Python test suites
Education
Bachelor of Science - Computer Science - Software Engineering
University of Calgary
12.2016
Bachelor of Science - Kinesiology
University of Calgary
05.2013
Skills
- Angular, React, and Vue
- Python and Nodejs
- Machine learning and generative AI
- Express and NestJS
- C# and ASPNET
- Microservices architecture
- Machine learning integration
- API development
- ETL processes
- Stakeholder collaboration
- Team leadership
- System administration
- Technical documentation
- NET Core and MS SQL Server
- Real-time analytics
- TypeScript and JavaScript
- HTML, CSS, and SCSS
- RabbitMQ, Amazon SQS/MQ & Kafka
- Rust and PostgreSQL
- AWS and Azure
- Mongo DB, Cosmos DB, Firestore, Firebase
- Perl and Heroku
- Docker and Kubernetes
- Shell scripting and Linux administration
- DevOps practices
- Discovery and optimization strategies
- Legacy code modernization
- Leadership and mentorship skills
- Change management techniques
- Data analytics methodologies
- Clean code principles
- Software architecture design
- Data-driven design approaches
- Market analysis techniques
References
References available upon request.
Timeline
Senior Freelance Software Engineer
1280 Labs Inc. & Independent
03.2025 - Current
Senior Back-End Software Engineer
College House at House Analytics
09.2024 - 03.2025
Senior Software Engineer
NCAL Engineering
01.2024 - 02.2025
Senior Software Engineer
FullStack Labs
12.2021 - 12.2023
Software Engineer
Peloton Computer Enterprises
12.2016 - 12.2021
Software Developer
SIACharts (SIA Wealth Management)
12.2015 - 12.2016
Bachelor of Science - Computer Science - Software Engineering
University of Calgary
Bachelor of Science - Kinesiology
University of Calgary
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