Celest

Core platform engineer for Y Combinator-backed startup building a Dart backend-as-a-service platform, leading gRPC architecture and representing the company at major tech conferences.

Developer Tools San Francisco, CA
YC24 Y Combinator
/
Dart Backend Platform
/
gRPC Architecture
/
Turso Database
Celest

The Challenge

Celest was building something ambitious: a backend-as-a-service platform that would let Flutter developers write their entire stack in Dart. As a Y Combinator startup, speed was everything—they needed experienced engineers who could ship production-quality infrastructure fast.

The challenge: accelerate core platform development while establishing the architectural patterns that would scale with the company's growth.

Our Approach

  • Backend Innovation: Led gRPC-based backend architecture and Go service integration
  • Admin Console: Built the Flutter Web admin console for organization and schema management
  • Database Integration: Implemented Turso integration for edge-native database capabilities
  • Developer Experience: Focused on making the platform intuitive for Dart developers
  • Conference Representation: Represented Celest at major tech conferences in NYC

Architecture

flowchart TB
    subgraph Developer["Developer Experience"]
        App[Flutter App]
        Console[Admin Console]
    end

    subgraph Celest["Celest Platform"]
        gRPC[gRPC Gateway]
        Go[Go Services]
        Dart[Dart Backend]
    end

    subgraph Data["Edge Database"]
        Turso[(Turso)]
    end

    App --> gRPC
    Console --> gRPC
    gRPC --> Go
    gRPC --> Dart
    Dart --> Turso

Results

The engagement helped Celest accelerate their Y Combinator journey:

  • Established scalable gRPC architecture for the core platform
  • Delivered admin console enabling customer self-service
  • Integrated modern edge database technology (Turso)
  • Contributed to successful YC24 batch participation
  • Raised company profile through conference presence
timeline
    title YC24 Journey
    section Development
        Platform Core : gRPC architecture
                     : Turso integration
        Admin Console : Flutter Web dashboard
                     : Org management
    section Launch
        YC Demo Day : Conference presence
                   : NYC tech events

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