# Kris Bitner > Senior Software Engineer Location: Wailuku, Hawaii, United States Profile: https://flows.cv/krisbitner From big data with Java/Hadoop to my current role as a backend dev in a Ruby/Python stack, I've had the pleasure of working with tons of amazing people and technologies across the healthcare and finance spaces. I enjoy tackling complex challenges, diving in to new topics, and playing bagpipes on the beach. ## Work Experience ### Senior Software Engineer @ Square Jan 2023 – Present | Wailuku, Hawaii, United States ### Backend Software Engineer @ Apto Payments Jan 2020 – Jan 2022 | Remote I worked at Apto for over two years and saw many phases the company went through. A few highlights from my time there include: - Built a serverless application from scratch with AWS Lambda, AWS DynamoDB, and Vue to streamline customer support workflows - Implemented ACH funding capabilities, working with a partner bank and subject matter experts to ensure compliance to financial standards - Added various API endpoints and functionalities for the core sinatra/rails apps which focused on card issuance, funding, and account maintenance - Converted SQL queries into ruby to automate generating reports for clients, replacing hours of weekly manual work - Automated team’s repo testing, deployments, and pull request creation with github workflows - Fostered continuous team improvement through pair programming, mentoring, and running tech guilds ### Software Engineer @ TeamSnap Jan 2020 – Jan 2020 | Remote TeamSnap was my first full remote position and I learned quite a bit in a short amount of time. The people I got to work with were amazing and the culture was so good that I felt more connected to my teammates in a full remote environment than in my previous office setting. What I worked on at TeamSnap: - Utilized Stripe and WePay to power financial processing for an app that serves over 22 million - Increased customer usage of ACH payments by 10% by altering the point in the workflow where the Stripe account is created as part of a team pivot to respond to changes in Visa’s nonprofit rates - Consistently balanced the needs of the company with the needs of working on tech debt and suggested meaningful changes to team process to improve efficiency - Jumped into a new tech stack and leveraged remote pair programming to hit the ground running ### Software Engineer @ Cerner Corporation Jan 2015 – Jan 2019 I joined Cerner after a college internship, focusing initially on big data processing with Java and Hadoop but eventually shifting into a more front-end role with Ruby on Rails and React. I had the honor to work with many talented individuals, and I believe that the most important aspect of software development is a solid connection with your teammates through empathy, communication, and a common goal. Our common goal was improve healthcare by writing and maintaining applications that serve as an interface of the Cerner HealtheIntent platform for clients, consultants, and other engineers. Projects I worked on at Cerner: - Enhanced a rails web application to allow users to switch between AWS regions on demand - Maintained several React.js, Ruby on Rails, and Java applications and APIs utilized by Cerner clients, consultants, and other engineers within our organization - Configured Apache Hadoop applications on a new AWS cluster and enabled Kerberos for added security - Joined forces with numerous teams to migrate live clients from on-premises servers to AWS - Reduced cluster resource usage of a crunch pipeline by 20% by leveraging more efficient data models - Met with solution designers, wrote requirements, and completed logical implementation of patient consent filtering in order to be compliant with EU health privacy laws ## Education ### Bachelor of Science - BS in Computer Science Indiana University Bloomington Jan 2011 – Jan 2015 ## Contact & Social - LinkedIn: https://linkedin.com/in/krisbitner --- Source: https://flows.cv/krisbitner JSON Resume: https://flows.cv/krisbitner/resume.json Last updated: 2026-03-22