Contact

• Site : CV, LinkedIn, Cover letter, Korean CV
• Phone: 010-4403-4607
• Mail : [email protected]

I am Seongho Bak, a 4-year full-stack developer

who enjoys being immersed in products and making an impact across various domains.

<aside> <img src="/icons/bookmark_gray.svg" alt="/icons/bookmark_gray.svg" width="40px" /> I enjoy creating value starting from zero. Some PoC projects became the company's main products, while others progressed to MVP stage before stopping. By immersing myself in products, I've experienced growing from 0 to over 580 B2B locations and worked to improve B2B2C customer satisfaction. It's been incredibly valuable to incorporate customer feedback into products through beta, A/B, and rollout testing. I want to grow and develop alongside the products I create.

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<aside> <img src="/icons/bookmark_gray.svg" alt="/icons/bookmark_gray.svg" width="40px" /> A developer who enjoys reflection and communication

While running, you may not know if you're fast or slow, but only through reflection can you truly see your pace. I enjoy receiving regular feedback from colleagues and discussing technology. I usually take the initiative to request one-on-ones or ask questions. I prefer receiving candid feedback, and I consider those who give it to be people who help me grow. I believe growing together with team members is the fastest path to success for the company, products, and individuals.

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Experience

주식회사 누비랩(Nuvilab)

Full Stack Engineer (2022.07 - Present)

• Zero Food Waste B2B2C app development, “싹싹머니”
  • Full stack development using app (Flutter), backend (Nest.js), PostgreSQL
• SaaS service for daycare·kindergarten teachers, ”냠냠프로” development
  • Full stack development using frontend (Next.js), backend (Nest.js), MySQL
  • Launched AI-based menu recognition and submission service
  • Launched AI Teaching Assistant feature introducing daily lunch menu to children
• Healthcare for diabetics, “룬샷(Loonshot)” POC project development
• “냠냠키즈”, expanded from POC development to company's main product
  • Full stack development using frontend (React.js), backend (Express.js), MySQL
  • Expanded from 0 to over 580 locations
  • Business and growth metrics visualization using Umai, Clarity, GTM, LookerStudio
• Product design system development using Storybook
• Integration of external resources including Firebase, GCP, Naver Clova API, PASS identity verification
• MySQL, PostgreSQL user creation permission management, ERD design, incident response

Intern, Service Tech Team (2021.12 - 2022.07)

• 3D Depth visualization, AI Image Segmentation masking tool development
• ESG environment dashboard development
• CVAT customization

Project Detail

:싹싹머니: Leading the Development of "싹싹머니", a Reward-Based Zero Food Waste Behavioral Change App

(2025.1 ~ Present)

Key Activities

• Validating behavioral change hypotheses based on rewards for zero food waste and food scanning
• Integrating user and performance data with government "Carbon Neutral Points Green Life Practice" initiative
• Rapidly developing product MVP using mobile (Flutter) and backend (Nest.js)
• Providing consistent UIUX for iOS and Android through MVVM clean architecture
• Implementing customer notifications for food scanning, reward distribution, and events using GetX state management and FCM push notifications
• Offering simplified signup UX through Apple, Google, and Kakao social login
• Taking initiative from contract negotiation to implementation for PASS identity verification, ensuring stable product integration
• Launching service on iOS App Store and Android ONE store
• Controlling app state remotely using Firebase Realtime Database for Feature Flag settings instead of AppConfig

Key Achievements

• Expansion of B2B2C business with Aramark
• Validation of reward-based customer behavior change hypothesis
• Rapid customer validation
  • 2 months of Flutter learning (Vibe Coding)
  • App launch after 1 month of development
  • App feature releases and UIUX updates in 1-2 week sprints

Tech Stack

• Flutter, GetX, Melos, Firebase, Sentry, Freezed, Firebase Realtime DataBase, FCM Nest.js, TypeORM, AWS SES, SNS, PostgreSQL, GCP

:냠냠키즈: Leading SaaS Product Development for Teachers: “냠냠프로”