Julián Pérez

Julián Pérez

About

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Python, AI, Web apps, APIs, Startups
Colombia
Contact Julián regarding: 
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Timeline

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Résumé

Jobs verified_user 0% verified
  • Station70
    Software Engineer
    Station70
    Nov 2024 - Current (1 year 11 months)
    Python
    • FastAPI
    • SQLAlchemy
    • Serverless with AWS
    • Claude Code
    • GH Actions
  • CivicScience
    Sr. Software Engineer
    CivicScience
    Jan 2023 - Aug 2024 (1 year 8 months)
    Python
    • OpenAI
    • LangChain
    • Java
    • Flink
    • Snowflake
    • AWS
    • FastAPI
    • Celery
    • Redis
    • Docker
    • GH Actions

    - One of the main creators and maintainers for 2 new GenAI powered initiatives:
    - A news article quiz generator, involving web scraping, real-time article trendiness tracking, and QA generation off a fined-tune AI model
    - A web/Slack chatbot with memory capabilities, serving natural language queries using RAG
    - Created a Flink job that consumes logging data from S3, process it, and sinks it to Snowflake
    - Contributed in the team's on-call rotation to triage and troubleshoot production issues
  • Onfleet
    Software Engineer
    Onfleet
    Jul 2021 - Sep 2022 (1 year 3 months)
    NodeJS
    • MongoDB
    • AWS Lambda + API Gateway
    • Terraform
    • OSS
    • Retool

    - Created and contributed to Onfleet's internal and external services running on AWS Lambda + API Gateway (managed via Terraform)
    - Responsible for Onfleet's Open Source official API wrappers (Python, NodeJS) –including automations via GitHub Actions
    - Administered and developed Retool modules and applications that contribute to Onfleet's internal tools ecosystem –increasing process efficiency for 60+ internal users
    - Advisor for external and internal stakeholders, from a technical standpoint, to analyze, scope and define new initiatives
    - Documented and co-established internal processes for the team
    - Champion
  • Gorgias
    Software Engineer
    Gorgias
    May 2020 - Mar 2021 (11 months)
    Python
    • Flask
    • PostgresSQL
    • React/TypeScript
    • GCP
    • SQLAlchemy
    • APIs
    • Redis
    • Docker

    - Created end-to-end features (e.g. new Stats filters, Macros/Rules UI and processing, Ticket actions)
    - Extended the API with new endpoints and alleviated tech debt in existing ones
    - Created the foundation to upgrade from offset-based to cursor-based navigation in API endpoints
    - Optimized designated API endpoints speed at DB level by ~3-5x
    - Upgraded the specs and docs for multiple resources in Gorgias public and private APIs
    - Created technical guides for external developers integrating Gorgias API
    - Assisted customers with technical support needs (~4.5/5 rating, as p
  • ShipHero
    Sr. Back-end Engineer
    ShipHero
    Jan 2019 - Mar 2020 (1 year 3 months)
    Python
    • Flask
    • MySQL
    • AWS
    • SQLAlchemy
    • APIs
    • Redis
    • Docker

    Contributed across different teams (from billing customers to carrier API integrations, plus general features and bugfixing) to help stabilize and enhance the platform.
  • L
    Lead Engineer
    Litimetrics Inc
    May 2018 - Dec 2018 (8 months)
    Python
    • Django
    • MySQL
    • AWS, Azure
    • NumPy
    • Pandas
    • Scraping

    Jack of all trades on the technical side: refactors, integration of new data sources (via API and web scraping), general scripting and basic AWS babysitting.
  • Wayup
    Sr. Back-end Engineer
    Wayup
    Jan 2018 - Apr 2018 (4 months)
    Python
    • Django
    • AWS
    • APIs

    Refactored multiple serializers to make API easier to develop, test and extend.
  • Mozio
    Technical Lead and Back-end Engineer
    Mozio
    Jun 2014 - Sep 2017 (3 years 4 months)
    Python
    • Django
    • MySQL
    • AWS
    • APIs
    • Redis
    • Docker

    - Technical point-of-contact / Team lead for Mozio Corporate
    - Provided tech assistance and docs to partners integrating Mozio API (Corporate and Leisure travel)
    - Integrated multiple 3rd party APIs from the travel industry (e.g. ground transportation providers, corporate travel systems, FlightStats, Google Analytics)
    - Actively participated in the design and development of Mozio's APIs and micro-services
    - Led several refactors to the main codebase to make it more intuitive, easier to maintain and extend
  • Z
    Full-stack Web Developer
    ZehnerGroup
    Apr 2013 - May 2014 (1 year 2 months)
    Python, JS
    • Django, jQuery
    • PostgreSQL, MySQL

    Served as Full-stack web developer in multiple early-stage and maintenance Python/Django-based projects, ranging from startups to established brands.
  • Upwork
    Full-stack Web Developer
    Upwork
    Aug 2012 - Apr 2013 (9 months)
    Contractor via Upwork: https://www.upwork.com/freelancers/_~01507a3e29b777f9b1
    Python, JS
    • Django, jQuery
    • PostgreSQL, MySQL

    As Python/Django consultant, helped many clients achieve their goals in multiple diverse early-stage and maintenance projects.
  • t
    Cofounder and CTO
    trappt.com
    Mar 2012 - Aug 2012 (6 months)
    Python, JS
    • Django, jQuery
    • PostgreSQL
    • Heroku

    - Built the entire MVP and hosted it in Heroku (live beta, free trial for customers)
    - Led our business opportunities and social media efforts, reaching with 10+ customers, 1000+ users and 3000+ social network followers
  • Banco de Occidente
    Software Engineer
    Banco de Occidente
    Nov 2010 - Mar 2012 (1 year 5 months)
    C#
    • ASP.NET
    • Oracle DB
    • Oracle BI Publisher

    - Created one of the bank's first Oracle BI Publisher-powered reports, optimizing paper and ink consumption (by 30%) and load times (25%)
    - Created a wiki system prototype to manage my team's resources and tasks
  • Siesa
    Software Engineer
    Siesa
    Nov 2009 - Nov 2010 (1 year 1 month)
    VB.NET
    • POS for .NET
    • SQL Server

    - Created an API to manage POS devices (barcode scanners, scales, receipt printers, multiple displays, cash drawers) for the company’s bran-new POS system
    - Created a price checker application for handheld devices, establishing a potential new source of revenue by using ads
Education verified_user 0% verified
  • Universidad del Valle (CO)
    Universidad del Valle (CO) — Bachelor of Engineering
    Universidad del Valle (CO)
    Jan 2004 - Dec 2009 (6 years)
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