# Tanner Hallman πŸš€ > Senior Software Engineer @ Liquibase | Ex-CTO & Cofounder | Stay Learning Location: Denver, Colorado, United States Profile: https://flows.cv/tannerhallman Key Accomplishments: Cofounded, built, and helped lead a B2B2C SaaS product in real estate software from 0 to ~$500k ARR, hundreds of customers, and a combined 1 million in seed funding About Me: With a fervent passion for technology and innovation, I have carved a niche for myself in native mobile app development, immersive web app experiences, and intricate backend application constructions. My journey includes co-founding and building 'Coworks' - a groundbreaking SaaS product tailored for coworking spaces. Under my leadership, Coworks transcended from a mere idea to a venture boasting an ARR of ~500k, hundreds of loyal customers, and 1 million in seed funding. My hands-on experience spans across creating a React.JS dashboard, developing a complex backend using Ruby on Rails, and launching two native mobile apps with a keen vision of transitioning to a unified cross-platform React Native application. Further, I have spearheaded real-time booking systems and managed a diverse team of engineers, ensuring the seamless operation of our products. My unique skillset doesn't just end at technical prowess. It's complemented by roles like DevOps Engineer, Product Manager, Sprint/Scrum Manager, and Developer Experience (DX) Manager. At each step, I've prioritized continuous learning, not fearing failures but embracing them as stepping stones to success. As I continue my professional journey, I remain committed to further enhancing my knowledge and skills. My experience scaling up a SaaS application from the ground up has armed me with unique insights and abilities. I am excited to foster collaborations, explore new horizons, and contribute to transformative tech solutions. ## Work Experience ### Senior Software Engineer @ Liquibase Jan 2024 – Present | Denver, Colorado, United States ### Senior Software Engineer @ Sika Health Jan 2023 – Jan 2024 | Denver, Colorado, United States ● Led a team of engineers to build & maintain a comprehensive Healthcare Spending Account platform ● Worked with Stripe team to implement payment rails advancements to pass healthcare data to card networks to allow automatically classifying purchases on healthcare cards as approved healthcare spending (auto-substantiation) ● Managed the platform architecture through terraform and Google Cloud Provider (GCP) ● Led building out the β€œLetter of Medical Necessity” feature which enables docter-approved purchases of healthcare items to be auto-substantiated ● Implemented an Artificial Intelligence assisted customer service chat feature that allowed us to scale support with less heads ● Led the consolidation and migration of the tech stack from a fragmented 4-language stack (rust, python, golang, and javascript) into comprehensive typescript architecture ● Reduced monthly architecture spending by 50% (reduced $3000) ● Built a scalable webhooks architecture for public api consumers to subscribe to platform events ● Built and maintained a public api for partners and consumers to integrate ● Implemented an internal engineering standards & best practices repository for better consistency and maintainability ### Cofounder & Chief Technology Officer @ Coworks Jan 2019 – Jan 2023 | Raleigh, NC ● Cofounded, built, and led a B2B2C SaaS coworking management software product from 0 to ~500k ARR, 100s of customers, and a combined ~$1 million in seed funding ● Responsible for building and maintaining a suite of software products including a React.js dashboard, a Rails API, 2 native mobile apps (iOS and Android) with React Native components, and a NodeJS server powering conference room booking & front-desk guest check-in tablets using a PostgreSQL database. Used the latest and best practices for technologies like ReactJS Hooks, Redux, GraphQL, Apollo, NodeJS, ExpressJS, Socket.io, TailwindCSS, Prisma, NestJS, NodeJS microservices and Redis. Integrated with 3rd party platforms like Sentry, New Relic, Stripe, Google Cal, Twilio, SendGrid, Outlook, Firebase, Google Analytics, and more. Hosted on AWS. ● Managed of a group of engineers with various technologies and experiences ● Acted as a Senior Engineer, DevOps Engineer, Product Manager, Sprint/Scrum Manager, Developer Experience (DX) Manager, Automation Engineer, and a Customer Experience Engineer, and a Technical Manager ● Coworks was founded in 2017 as an internal product of Lithios and was officially incorporated in June 2019 ● Time allocation: 75% software development (ReactJS, Android, NodeJS, Rails), 25% management & strategy ### Startup Accelerator Cohort Member '19 @ Techstars Jan 2019 – Jan 2019 | Greater Atlanta Area ● Techstars is startup accelerator of global prestige where Coworks received its first injection of capital (after 3 years of bootstrapping) ● Worked with many investors, product wizards, and other startup Founders to transform our business into a well oiled machine ● Attended countless startup and founder based workshops while maintaining a fully functioning business ### Chief Technology Officer @ Lithios Jan 2018 – Jan 2019 | Raleigh-Durham, North Carolina Area ● Led a team of engineers building software products and interfaces for local and national business including companies like Cree and DraftKings ● Explored and implemented technological improvements to the company software stack ● Managed, built, and supported an β€œinternal product” (Coworks) while balancing customer projects and ensuring proper resource allocation and delivery ● Acted as a technical manager for customers including proper planning, scoping, and project management for parallel products ● Developed production level applications using these technologies: React.js, Ruby on Rails, Node.js, React Native, Android, and iOS, Graphql, Gatsby ● Time Allocation: 90% Software Development, 10% Management ### Senior Software Mobile Developer - Android @ Lithios Jan 2017 – Jan 2018 | Raleigh, North Carolina ● Led and owned the development of any Android apps for any customer projects ● Interfaced with customers to obtain project requirements and managed the relationships ● Maintained & Improved company strategy for Android technology ### Disaster Recovery Software Engineer for Enterprise Messaging Infrastructure @ Credit Suisse Jan 2015 – Jan 2017 | Raleigh-Durham, North Carolina Area ● Built a visual web interface in Javascript that was capable of creating messaging infrastructure to help the team create consistent and standardized messaging queues more rapidly ● Planned disaster recovery procedures for enterprise architecture ● Performed disaster recovery procedures to ensure that technical infrastructure would recover gracefully in the event of production outages. ● Analyzed recovery procedures to ensure failovers met SLAs ## Education ### Bachelors of Science: B.A. (Business Administration) in Marketing; Computer Science University of North Carolina Wilmington Jan 2011 – Jan 2015 ## Contact & Social - LinkedIn: https://linkedin.com/in/tannerhallman - Website: https://tannerhallman.com - GitHub: https://github.com/tannerhallman --- Source: https://flows.cv/tannerhallman JSON Resume: https://flows.cv/tannerhallman/resume.json Last updated: 2026-03-22