Jesse-Daniel Belleau-Karaskewich Email & Phone Number

Ottawa, ON, CA

Toronto, Canada Area

* Led hands-on cast saving effort resulting in $30,000 USD / month savings. Addressed resource wastage, rightsizing of Production Infrastructure, business-suitable life-cycle policies, and migration to cost-effective AWS Instance types (e.g. Graviton).* Planned and Executed Zero Downtime upgrades of our critical Cassandra Clusters from v3 to v4. Utilized.

Toronto, Canada Area

• Analyzed and Optimized thread pool and GC configurations for our Scala Real-time Decisioning System. At 2500 transactions per second, this reduced timeouts by 99% and reduced p99 response time from 250ms to 160ms.*.
• Became a primary contact point for new team members onboarding onto the project. Provided training and on-going advice on how to navigate/improve the system.* Managed infrastructure through Terraform modules and many.

Toronto, Ontario, Canada

* Created a.NET Core, cloud-native, micro-service application to consolidate the various programs our client used to manage their business and physical infrastructure. The programs were from previous acquisitions, so the new application was built to support current business as well as easy setup of future acquisitions.* Defined a local caching strategy for.

Toronto, Canada Area

Developed and deployed a Content Management System to promote the internal Agile Methodology used at Slalom. Drupal backend was extended to meet the needs of the client, and complex frontend components were developed using Vue.js.Worked within a small 5 person team, and alongside multiple remote teams from Boston and Seattle. Together we practiced daily.

St. Catharines, Ontario, Canada

Created a battery of psychological tests using EPrime and Inquisit, based off of established studies.Used Python to automate all of the tests. Utilized tests created from different studies in JavaScript.Established personal schedule to meet deadlines.Communicated with client to ensure proper implementation of requirements.

St. Catharines, Ontario, Canada

Assist students with all things Computer Science, including help with concepts and assignments. Also assist in debugging difficult to solve problems, and setting up various required environments.

Test specific aspects of a client's website/app, providing insights as to how a user would navigate and interpret the information provided, or how a user would attempt to accomplish certain tasks (e.g. Finding contact information, opening hours, scheduling an appointment, etc...).

Ontario, Canada

Maintain and develop a large code base of internal applications that are used daily.Address unexpected bugs quickly and efficiently.Create end user documentation.

333 Ontario Street

Ensured safety of guests by enforcing rules and regulations.Promoted enjoyment of guests with enthusiasm and creativity to suggest fun activities.Assisted in maintaining appearance of facility.