# Janina Mejia

> Software Engineer at Tatari

Location: San Francisco, California, United States
Profile: https://flows.cv/janinamejia

## Work Experience
### Staff Software Engineer @ Tatari
Jan 2025 – Present
Own technical design and delivery as tech lead for measurement platform initiatives, creating
comprehensive technical specifications, decomposing projects into executable tasks across 4-6 engineers, and coordinating execution from design through production.
Responsible for development and maintenance of several critical data pipelines, acting as the subject matter expert on the team for some of the more advance measurement methodologies, with possible inputs on the order of tens of terabytes of data per run.
Collaborate with data science team and product management to translate complex measurement
requirements into scalable technical solutions, balancing business needs with engineering constraints.

### Senior Software Engineer @ Tatari
Jan 2022 – Jan 2024
Designed, built, and maintained robust data pipelines powering Tatari's Reporting and Measurement platform, providing accurate measurement methodologies for clients optimizing TV advertising ROI across linear and streaming television.
Building these ELT data pipelines required working with external data vendors, establishing scalable and reliable data flows for measurement metrics including conversions, reach, and other analytics. Utilized modern data stack technologies (spark, airflow, databricks, clickhouse) to process large scale advertising data.

### Software Engineer @ Tatari
Jan 2019 – Jan 2021 | San Francisco Bay Area
Developed backend features for Tatari's TV advertising platform, contributing to measurement systems and client-facing analytics that enabled brands to optimize ad spend.
Architected and deployed backend services using Python on AWS infrastructure (EC2, S3, RDS), maintaining high availability and system reliability. This required close collaboration with the frontend team when designing the API (graphQL) to ensure the capability to surface critical data to the client dashboards.

### Software Engineer @ Smiths Detection
Jan 2015 – Jan 2018
Software developer responsible for implementation of libraries and applications to allow for communication and control of various hardware devices used on the Smiths Detection CTX explosive detection systems.  Main contributor to a suite of software tools that allows manufacturing team to verify functionality of system hardware.
Primarily programming in C++ and Python on the Linux platform.

### Machine Vision Intern @ Morpho ( SAFRAN )
Jan 2014 – Jan 2015 | Newark, CA
Created scripts to measure system properties and to assess image quality. Also executed experiments and gathered data on explosive detective system scanners.

### Audio/Video Technician @ UC Davis Academic Technology Services
Jan 2012 – Jan 2013 | Davis, CA
Provided technical support to classrooms around the school campus.
Responsible for maintaining and repairing media equipment to ensure proper function during class hours.


## Education
### Bachelor's degree in Electrical Engineering
University of California, Davis


## Contact & Social
- LinkedIn: https://linkedin.com/in/janina-mejia

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Source: https://flows.cv/janinamejia
JSON Resume: https://flows.cv/janinamejia/resume.json
Last updated: 2026-04-01