Mike Mainguy

Head of Software Engineering

Powerline

Feb 2023 - Current (3 years 7 months)

Powerline is building the AI intelligence layer and digital testbeds for grid-scale battery portfolios — software that helps developers, operators, and utilities maximize revenue, benchmark performance, and scale operations under real-world market constraints. As Head of Software Engineering, I lead the design and delivery of Powerline’s core platform, spanning portfolio analytics, simulation and optimization, applied AI workflows, and large-scale distributed systems for modern power markets. Our platform combines market data, simulation infrastructure, optimization models, and AI-assisted analysis to help energy teams evaluate strategies, understand portfolio performance, and make better operational decisions. My role spans engineering

Director of Engineering

Twistle by Health Catalyst

Apr 2022 - Feb 2023 (11 months)

Twistle is the nation's leading patient engagement and care coordination technology platform. Clinicians use Twistle to engage patients through their care journey to improve outcomes. • Helped scale Twistle through 60× growth, culminating in its acquisition by Health Catalyst. • Led two engineering teams responsible for the company’s core SaaS platform, managing nine software engineers across platform engineering, product delivery, customer integrations, and regulated healthcare workflows. • Maintained 99.97% production uptime while supporting rapid customer growth and post-acquisition organizational scale. • Built AI-assisted patient engagement capabilities that increased patient engagement by approximately 40%.

DevOps & Integration Manager

Twistle by Health Catalyst

May 2021 - Apr 2022 (1 year)

• Managed a team of 3 DevOps/data engineers through Twistle's rapid growth • Reduced engineering effort required for enterprise integrations by 70% through platform redesign. • Built distributed data processing infrastructure, machine learning pipelines, and enterprise integration patterns supporting healthcare customers in regulated production environments.

Software Development Engineer

Twistle by Health Catalyst

Jul 2019 - May 2021 (1 year 11 months)

• Served as the main DevOps engineer for Twistle • Built cloud infrastructure, deployment platform, CI/CD pipelines, and enterprise healthcare integrations supporting Twistle's rapid growth.

DevOps Engineering Fellow

Insight Data Science

Mar 2019 - Jun 2019 (4 months)

• Built a continuous delivery pipeline for a machine learning algorithm that enabled the training of multiple models simultaneously and allowed for on-demand deployments to production. • Scripted the entire infrastructure setup in AWS using Terraform. Deployed the algorithm using Docker, Kubernetes, and Kubeflow. Automated the build/deployment process using ArgoCD and Ksonnet. • This project is one of the first end-to-end examples of Kubeflow in AWS that is open-source and available on GitHub.

Executive Consultant

Cumberland Consulting Group

Aug 2018 - Mar 2019 (8 months)

• Led cloud modernization, DevOps transformation, and software delivery initiatives for Fortune 50 healthcare organizations.

Lead Consultant

Cumberland Consulting Group

Jun 2016 - Aug 2018 (2 years 3 months)

• DevOps and product management consultant for a health insurance software development company. • Launched a website in 4 months that allows Medicaid members to view their medical records, securely message a nurse, and complete screening questions. The website is currently live in five states covering 250,000 members. • Guided two teams of engineers through the implementation of Scrum and setup of a continuous integration strategy. Shortened the deployment process from 2 developer hours to 10 minutes. • Wrote scripts for automated building, security scanning, and deployment of the IIS web application using Bamboo. • Configured Windows servers, certificates, single sign-on, database tables, and firewalls for product launch and maintenance.

Senior Consultant

Cumberland Consulting Group

Apr 2014 - Jun 2016 (2 years 3 months)

• Technical analyst and product manager for several critical internal tools for a health insurance company in the claims and provider relations departments. • Managed the interface used to update 100 data fields for one million physicians from six source systems. Automated key steps of the interface, tripled the rate of successful transactions and reduced the number of aged claims by 30%. • Launched a new member communication system that generated over 600,000 medical authorization and denial letters per year. This application has reduced end-user letter creation time by 45% and eliminated manual intervention for 80% of letters.

Staff Consultant

Cumberland Consulting Group

Aug 2012 - Apr 2014 (1 year 9 months)

• Directed support of 15 physician practices during an enterprise deployment of Allscripts electronic health record system. Developed reports to analyze and increase user adoption which resulted in an additional $300,000 of federal subsidies. • Performed clinical and revenue cycle architecture assessments for a major pediatric oncology center including current state examination, analysis of strengths and weaknesses of opportunities, and recommendation for the future state.

Research Associate

Tulane University

Jan 2011 - May 2012 (1 year 5 months)

• Directed research focused on the interaction between growth hormone and estrogen and how these hormones affect learning and memory in the brain

Research Assistant

Beth Israel Deaconess Medical Center

Jun 2009 - Aug 2010 (1 year 3 months)

• Responsible for assisting in the development of recombinant antibodies used for HIV/AIDS research

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