J.Clerisier
HPC Researcher & Backend Engineer
Jasen Clerisier
I'm a backend engineer with a deep interest in High-Performance Computing and distributed systems. I enjoy working close to the metal — optimizing for throughput, parallelism, and low-latency architectures — while also designing robust, scalable backend services. My focus lies at the intersection of systems engineering, performance-critical software, and Applied Mathematics.
Experience
  • Clarivate - Software Engineer
  • 2025 - Present
    • Led a team of software engineers to build a React-based self-service web tool, reducing manual workload by 10%.
    • Managed team responsibilities and schedules to ensure timely delivery of features and milestones.
    • Developed and maintained PostgreSQL data feeds powering client-facing applications for enterprise partners, including Merck and Chiesi USA.
    • Utilized PostgreSQL and log analysis to troubleshoot and resolve data and database issues for client-facing custom data feeds.
    • Leverage Python, FastAPI and Jenkins to incorporate automatic QC validation before each delivery of data feed.
  • Clarivate - Associate Software Engineer
  • 2017 - 2025
    • Designed and launched a cross-platform insurance lookup app in Flutter/Dart, achieving 200+ downloads and 20+ active users during pilot testing.
    • Boosted app performance by 3× by implementing optimized data-fetching algorithms, improving insurance lookup speed.
    • Deployed production releases to the Apple App Store using Transporter and distributed beta builds for Android/iOS via Bitrise and Xcode IPA pipelines.
  • Florida A&M University - Application Developer
  • 2017 - 2025
    • Built a documentation system in JavaScript, XML, and SQL that streamlined the Florida A&M University admissions process, reducing processing time for student applications by 10%.
    • Created and maintained comprehensive technical documentation for system design, customizations, and issue resolution, enabling smoother adoption across departments.
    • Collaborated with project managers and end-users to design, automate, and test user-friendly workflows that improved operational efficiency.
    • Delivered Tier-2/Tier-3 technical guidance to the campus community, resolving hardware, software, and system issues both on-site and remotely.
    • Performed system installations, upgrades, and troubleshooting, ensuring reliable performance of mission-critical university applications.
SKILLS
SELECTED PROJECTS

StockArchives - Founder/Full Stack Developer

Built a secure FastAPI + PostgreSQL backend, implementing optimized schemas for financial statements, hashed user authentication, API token–based access, and replicated database architecture for high-volume reads.

FASQL

Built a secure FastAPI + PostgreSQL backend, implementing optimized schemas for financial statements, hashed user authentication, API token–based access, and replicated database architecture for high-volume reads.