Profile picture
Raj Phuyal
Location
Lisbon, Portugal
Email
hello​@rajhphuyal.com
LinkedIn
Linkedin
GitHub
Github
rajhphuyal.com
Profile

I'm curious, patient, and hardworking. I like challenges and new experiences. I enjoy both solo work and collaborating with teams, valuing respect and interpersonal contributions. I’m passionate about solving problems creatively helping to build solutions that make a difference.

Work Experiences
Founding Product Engineer, Carbon
10/2025 – Present | Lisbon

Early product and engineering owner;

  • •Building the full user data pipeline: OAuth integrations, secure ingestion and processing pipelines, encryption, and authorization flows.
  • •Shipped semantic search and an inference layer to extract personalized insights from user data.
  • •Designed the security model: encryption in transit and at rest, no raw data exposure, user-controlled permissions.
  • •Built the MCP server and developer API for third-party integrations.
  • •Lead pivot to Standardization (RAG-as-a-service), productizing the core infrastructure for broader use.
  • •Main engineering principle: observability-first approach to debugging at scale.
    • Full Stack Engineer, Fantasy
    02/2025 – 10/2025 | Lisbon

    Built end-to-end systems for a blockchain-based product, interfacing with on-chain data.

  • •Delivered full platform refactor in a team of 4 developers.
  • •Developed Chronos, a persistent job runner on Bun + NestJS + BullMQ, handling background jobs, data pipelines, and scheduled tasks across multiple data sources. Deployed on Railway with full unit and integration test coverage.
  • •Designed a scoring engine with multi-metric ranking formulas and built the API for third-party consumers.
  • •Diagnosed and fixed a ~90GB memory leak in production, reducing usage to ~10GB.
    • Full stack Engineer, Miles in the Sky⁠
    01/2023 – 12/2024Lisbon, Portugal

    Built features and internal tools with Vue.js, Python (AWS Lambda), and AWS for an education SaaS platform.

  • •Studio Platform Refactor: Led modular redesign for the content platform's SaaS transition, improving UX and onboarding.
    • 1 / 3
  • •Tested and hardened an in-house ORM and learned the full data model before writing major features, a practice I try to use everywhere.
  • •Fought time-sensitive production issues as a "firefighter" across multiple products and systems.
  • •Scheduling System: Designed and built a time slot booking system (2-person team, worked directly with architect).
  • •Universal Search: Shipped unified search across 4 platforms and various use cases.
  • •"Owl" AI Integration: Built AI-powered course creation tools for the Studio platform.
    • Skills
    Architecture
    DevOps
    Next JS & React
    Python
    C/C++
    Docker
    AI Coding Agents

    Claude code, Codex, Opencode

    Product
    Cloud (AWS/GC)
    Vue.js
    JS/TS
    Runtimes

    Node.js, Bun, Deno

    Databases

    SQL, MongoDB, Dynamo

    Education
    42Lisboa⁠, Software engineering
    09/2022 – present | Lisbon, Portugal

    42lisboa is a quite unique place to learn software engineering which has adopted the peer to peer learning methodology.

    I am currently on the path of specialization on various different subjects. My previous notable projects include, program in C++ for a Nginx clone and leading development in Trancendence, the final project of the common core with 5 team members. With some projects completed in C, notablily, a striped down version of Bash Terminal, Raycasting(sudo 3D game), and Dining philosophers solution, and more.

    2019 – 2022 | Lisbon, Portugal

    Completed level 4 of EUROPEAN QUALIFICATIONS FRAMEWORK in Professional Technical Course in Management and Programming of Computer Systems (CPTGPSI).

    Skills (fundamentals) acquired includes:

  • •Network Architecture & Communication
  • •Computer Architecture (Hardware)
  • •Python, Javascript, PHP, ASM (Assembly), HTML/​CSS
  • •Databases (MySQL, SqLite, Postgres)
  • •Operating systems (linux)
    • 2 / 3
    Languages
    Nepali
    Hindi
    English
    Portuguese
    3 / 3