Sean O'Callahan
Senior Software Engineer at Strella Biotechnology- Claim this Profile
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Bio
LinkedIn User
From day to day work, tech talks or casual 'office' chats Sean brings with him an infectious positive energy and eagerness to grow and share his knowledge with those around him. Sean is always willing to dive in and lend a hand where it's needed, even splitting his sprint time between two teams and projects. While his frontend domain knowledge was invaluable to propelling the team forward. What makes Sean the best kind of coworker is his humility, he isn't afraid to ask his peers for advice or get their thoughts on his current solution rather than settling for the first thing that worked. His communication and collaboration encouraged others to do the same and served to raise the code quality for everyone. Working with Sean was nothing short of a delight, he is truly asset to any team or company.
Vin Colgin
Sean worked as our senior front-end developer for our flagship product. In his role, he helped propel our tech stack forward, facilitated weekly tech talks with his peers (across groups within the company), and provided guidance for new React/Node/TS based projects. His great attitude, and humor, made him a joy to work with and buoyed the team through difficult tasks. We wish him success in all his future endeavours.
LinkedIn User
From day to day work, tech talks or casual 'office' chats Sean brings with him an infectious positive energy and eagerness to grow and share his knowledge with those around him. Sean is always willing to dive in and lend a hand where it's needed, even splitting his sprint time between two teams and projects. While his frontend domain knowledge was invaluable to propelling the team forward. What makes Sean the best kind of coworker is his humility, he isn't afraid to ask his peers for advice or get their thoughts on his current solution rather than settling for the first thing that worked. His communication and collaboration encouraged others to do the same and served to raise the code quality for everyone. Working with Sean was nothing short of a delight, he is truly asset to any team or company.
Vin Colgin
Sean worked as our senior front-end developer for our flagship product. In his role, he helped propel our tech stack forward, facilitated weekly tech talks with his peers (across groups within the company), and provided guidance for new React/Node/TS based projects. His great attitude, and humor, made him a joy to work with and buoyed the team through difficult tasks. We wish him success in all his future endeavours.
LinkedIn User
From day to day work, tech talks or casual 'office' chats Sean brings with him an infectious positive energy and eagerness to grow and share his knowledge with those around him. Sean is always willing to dive in and lend a hand where it's needed, even splitting his sprint time between two teams and projects. While his frontend domain knowledge was invaluable to propelling the team forward. What makes Sean the best kind of coworker is his humility, he isn't afraid to ask his peers for advice or get their thoughts on his current solution rather than settling for the first thing that worked. His communication and collaboration encouraged others to do the same and served to raise the code quality for everyone. Working with Sean was nothing short of a delight, he is truly asset to any team or company.
Vin Colgin
Sean worked as our senior front-end developer for our flagship product. In his role, he helped propel our tech stack forward, facilitated weekly tech talks with his peers (across groups within the company), and provided guidance for new React/Node/TS based projects. His great attitude, and humor, made him a joy to work with and buoyed the team through difficult tasks. We wish him success in all his future endeavours.
LinkedIn User
From day to day work, tech talks or casual 'office' chats Sean brings with him an infectious positive energy and eagerness to grow and share his knowledge with those around him. Sean is always willing to dive in and lend a hand where it's needed, even splitting his sprint time between two teams and projects. While his frontend domain knowledge was invaluable to propelling the team forward. What makes Sean the best kind of coworker is his humility, he isn't afraid to ask his peers for advice or get their thoughts on his current solution rather than settling for the first thing that worked. His communication and collaboration encouraged others to do the same and served to raise the code quality for everyone. Working with Sean was nothing short of a delight, he is truly asset to any team or company.
Vin Colgin
Sean worked as our senior front-end developer for our flagship product. In his role, he helped propel our tech stack forward, facilitated weekly tech talks with his peers (across groups within the company), and provided guidance for new React/Node/TS based projects. His great attitude, and humor, made him a joy to work with and buoyed the team through difficult tasks. We wish him success in all his future endeavours.
Experience
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Strella
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United States
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Agriculture, Construction, Mining Machinery Manufacturing
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1 - 100 Employee
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Senior Software Engineer
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Jun 2022 - Present
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Volly
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United States
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Software Development
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1 - 100 Employee
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Senior Software Engineer
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Jul 2020 - May 2022
• Developed platform-wide authentication/authorization which unified several products under a single auth solution • Initiated effort to improve developer experience by creating template repositories, private npm packages for code reusability, and simplified local development environment • Collaborated with product and design team to improve UX and build out of component library for main customer facing product • Mentored junior/mid team members through weekly open office hours and pair programming sessions Show less
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Knock® CRM
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United States
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Software Development
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1 - 100 Employee
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Software Development Engineer II
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Mar 2019 - Jul 2020
• Refactored legacy data analytics UI into the leading product in Knock’s SaaS suite, resulting in several high volume clients onboarding to the platform • As an early engineering hire, I helped implement development standards as we scaled to a team of 30+ engineers • Organized weekly skill building sessions with frontend developers across pods • Refactored legacy data analytics UI into the leading product in Knock’s SaaS suite, resulting in several high volume clients onboarding to the platform • As an early engineering hire, I helped implement development standards as we scaled to a team of 30+ engineers • Organized weekly skill building sessions with frontend developers across pods
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Lower.com
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United States
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Financial Services
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200 - 300 Employee
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Software Engineer
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Nov 2018 - Mar 2019
• Built Lower’s first software product, LOAI — a machine learning initiative that assisted Loan Advisors in providing uniquely tailored loan recommendations to borrowers • Managed team of remote developers based in Europe • Built Lower’s first software product, LOAI — a machine learning initiative that assisted Loan Advisors in providing uniquely tailored loan recommendations to borrowers • Managed team of remote developers based in Europe
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Homeside Financial
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United States
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Financial Services
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200 - 300 Employee
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Software Engineer
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Aug 2015 - Mar 2019
• Developed backend for Personal Apply, Homeside's streamlined mortgage application, handling over $500M in loan volume • Reduced cost through development of process automations that handled repetitive tasks for Accounting, Compliance, and HR departments resulting in cost savings of over $250k by the time I left • Developed backend for Personal Apply, Homeside's streamlined mortgage application, handling over $500M in loan volume • Reduced cost through development of process automations that handled repetitive tasks for Accounting, Compliance, and HR departments resulting in cost savings of over $250k by the time I left
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Forge Columbus
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United States
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Civic and Social Organizations
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Business Development Fellow
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Sep 2013 - May 2014
Assisting entrepreneurs by providing access to support services and start-up capital. Assisting entrepreneurs by providing access to support services and start-up capital.
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Education
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The Ohio State University
Bachelor of Arts - BA, Psychology -
2015 - 2015
The Software Guild
Software Developer Certification
