Julián Pérez

Software Engineer

Station70

Nov 2024 - Current (1 year 9 months)

Python • FastAPI • SQLAlchemy • Serverless with AWS • Claude Code • GH Actions

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

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 - Championed initiatives inside Engineering ('From ticket to productio

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 per CSAT surveys)

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.

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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.

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.

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.

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

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

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

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