Alexander Ivanov

Experience

1. Freddie Mac Jun 2023 — Present

   Software Engineer II

   • Built modular ETL pipelines in Python around single-responsibility components for independent testing and reuse.
   • Integrated ServiceNow, Snowflake, and Elastic APIs to automate data retrieval workflows that previously required manual effort.
   • Implemented OAuth 2.0 authorization flows for secure API authentication across internal and external endpoints.
   • Pulled server telemetry from Elastic via API to generate operational reports supporting capacity planning.
   • Built automated workflows in ServiceNow with client- and server-side scripting to streamline IT operations.
   • Set up email automation system in Python and Linux for server-to-client communications.
   • Managed sensitive credentials through HashiCorp Vault and CyberArk, eliminating local credential storage.
   • Scheduled automated job execution via AutoSys, orchestrated through ServiceNow on defined intervals.
   • Diagnosed and resolved script execution failures using Linux command-line tools during on-call rotations.
   • Authored system design documents and architecture diagrams to communicate behavior and data flow before implementation.
   • Championed adoption of structural design patterns across the team, raising code quality and establishing shared standards.

   Python · ServiceNow · Snowflake · Elastic · OAuth 2.0 · HashiCorp Vault · CyberArk · AutoSys · Linux

2. Paradigm Testing May 2021 — Jun 2023

   Software Developer (Contract)

   • Developed Java Spring MVC web application for a medical examination platform serving candidates and administrators.
   • Built exam administration system for candidate monitoring and room assignment management.
   • Migrated data access layer from Spring JDBC to Spring JPA, improving codebase maintainability.
   • Implemented asynchronous frontend–backend communication using AJAX for continuous data flow.

   Java · Spring MVC · Spring JPA · JavaScript · AJAX · MySQL

3. Synergy BIS Jun 2020 — Oct 2020

   Software Development Intern

   • Integrated MongoDB into the company website backend to improve data flow.
   • Developed frontend in TypeScript, self-taught to meet project requirements.

   MongoDB · TypeScript

4. Cornell University May 2017 — Aug 2017

   Software Development Intern

   • Deployed Breeding API enabling mobile access to plant breeding database.
   • Built Android application and presented on the company's live stream.

   Android · REST API