# Mariko I.

> Fullstack Software Engineer

Location: New York City Metropolitan Area, United States
Profile: https://flows.cv/mariko

Hi 👋🏻  I’m Mariko, a software engineer

☀️ Experience within the healthcare 🏥 and technology 💻space. I’m dedicated to building full-stack applications using JavaScript, TypeScript, React, Node and Express.

👩🏻‍💻Co-created an open source developer tool called SafeQL 🔒 that parses GraphQL schema to detect security vulnerabilities. I recently gave a tech talk 🎤 on TypeScript that was sponsored by Jeeny and Bracelet.

🤝Network Director at a healthcare technology company where I develop relationships to improve coordinated care across the healthcare continuum. I draw on my management consulting past and love for data to address the many gaps in our healthcare system.

🌿Staying curious and excited to grow professionally and personally, which can look like contributing to Open Source projects that have a mission and goal that resonate with me or perfecting my Mega Pilates game. 

Find me on GitHub! @ https://github.com/MarikoIwata

## Work Experience
### Senior Software Engineer @ Audience Rewards
Jan 2025 – Present | New York, New York, United States

### Director @ WellSky
Jan 2021 – Jan 2024
• Cleaned and analyzed non-profit data with Python using PANDAS library on Jupyter Notebooks through Anaconda across multiple markets
• Built Looker dashboard to visualize core business KPIs (e.g. Monthly Referrals)
• Supported sales teams with demos, communicating technical concepts to non-technical audiences
• Acted as bridge between sales, product, engineering, and professional service

### Software Engineer @ SafeQL
Jan 2022 – Jan 2024 | New York, New York, United States
• Product developed under tech accelerator OS Labs (opensourcelabs.io)
• Implemented Next.js for faster load time and integrated built-in tools, better code readability and therefore improved project management
• Migrated from JavaScript to TypeScript to develop the tool with strong, static typing for a more maintainable,  scalable code base with less bugs
• Utilized Tailwind for component level styling for easy readability
• Implemented CodeMirror 6 as a text editor within the app for its performant and extensibility features, modular aspects and slim core
• Created video and image uploading feature using GraphQL and GraphQL codegen in Typescript and React Hook Form across micro frontend (FE) architecture, optimizing data fetching process
• Conduct code reviews and provided feedback for production code for 3 engineers

### Software Engineer @ Codesmith
Jan 2023 – Jan 2023
- Mentored 15 software engineers across 3 projects using AGILE/SCRUM stand-ups to keep on track with sprints 
- Trained software engineers in core web technologies including JavaScript, React, Node, Express, Postgres, NoSQL, Data Structures & Algorithms through white boarding sessions, one-on-one code review and lectures

### Software Developer - Studify | Study app to collaborate and chat @ Open Source
Jan 2022 – Jan 2022 | New York, New York, United States
• Incorporated Redis for caching, resulting in more performant API/server calls, reduced total calls & faster load time by 50% after the first visit
• Utilized NoSQL database to support rapid iterative development and flexibility for evolving data models
• Stored files on AWS S3 to manage documents for scalability and high durability
• Used Socket.io for interactive communication between multiple users due to its ability to add an abstracted layer making it more developer friendly

### Software Developer - PawRents | Marketplace to rent or list pets @ Open Source
Jan 2022 – Jan 2022 | New York, New York, United States
• Developed with React using reusable components and state hooks with multiple pages served via React-Router rendering client side without reload
• Stored app’s data in PostgreSQL relational database for ACID compliant handling of user data and preparing for scaling the data
• Implemented Node.js/Express server with middleware design pattern and RESTful API to query database
• Configured webpack during build-out for hot module reloading on updates, using minification and uglification features to decrease bundled file size
• Implemented SCSS for more efficient styling with use of variables and nested syntax

### Founder @ Mikspress
Jan 2019 – Jan 2021 | New York, New York, United States
- Converted legacy code to Next.js, decreasing load time by 12% and lowering customer bounce rate by 23%
- Established reusable React components to create DRY code and easily manage common functions between user types decreasing development time by 40% in comparison to legacy set up
- Implemented Shopify’s headless CMS and GraphQL API for efficient data fetching and inventory management, replacing legacy code and reducing manual inventory maintenance time by 50%
- Transformed end-to-end CI/CD pipeline using Vercel and Github Actions, reducing deployment time

### Associate Consultant @ The Chartis Group
Jan 2013 – Jan 2015 | Washington, District of Columbia, United States
• Management consultant for healthcare consulting firm specializing in academic hospitals across the US
• Wrote SQL queries to analyze operational data for 3 academic medical centers

### Senior Consultant @ Booz Allen Hamilton
Jan 2011 – Jan 2013 | Washington, District of Columbia, United States
• Consultant for government contracts in military health space with focus on PCMH
• Wrote VBA macro code for HEDIS analysis dashboard to monitor public health data for military health system
• Developed pricing, technical writing and past performance for 15 proposals, resulting in $11.9m in new business


## Education
### Bachelor's degree
New York University

### MIA in Concentration in Management
Columbia | SIPA

### MPH
Columbia University Mailman School of Public Health


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

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