Timi Olajonlu

Software Engineer | Java · Python · Elixir · TypeScript · Ruby | Ex-PENN Entertainment · Ex-theScore | Open to Work

Toronto, Ontario, Canada

About

Software Engineering graduate, with backend internship experience at Penn Entertainment and theScore. I’ve worked on production services, APIs, testing, observability, and reliability, with hands-on experience in Elixir, Java, Python TypeScript, SQL, AWS, Kubernetes, and Datadog. I’m currently looking for junior/new grad software engineering opportunities, especially backend-focused roles where I can keep building reliable, scalable systems and grow as an engineer.

Experience

  • Software Engineer at PENN Entertainment, Inc
    Jan 2025 - Dec 2025 · 1 yr

    • Built and maintained production backend services in Elixir/Phoenix • Developed GraphQL APIs and optimized SQL queries for performance and reliability • Implemented gRPC endpoints for internal service communication • Created Datadog dashboards, alerts, and monitors for debugging and incident triage • Improved CI/CD workflows with Jenkins and Docker

  • Backend Software Engineer at theScore
    Sep 2023 - Aug 2024 · 1 yr

    • Built and maintained backend services using Elixir, Phoenix, and LiveView • Wrote automated ExUnit tests to support high-quality releases • Integrated with REST and GraphQL APIs and improved resiliency through better retry/error handling • Supported Jenkins/Kubernetes deployment workflows and Datadog monitoring • Worked with AWS EKS and PostgreSQL to improve scalability and reliability

  • DevOps Engineer at York University
    Mar 2023 - Sep 2023 · 7 mos

    • Supported on-site troubleshooting for system and network issues • Worked with IT and business stakeholders to resolve user requests efficiently • Helped reduce downtime by handling failure tickets and technical support tasks

  • Computer Science and Maths Tutor at Kadama
    Mar 2021 - Jul 2022 · 1 yr 5 mos

    Tutored computer science and mathematics