FR

15 years building iOS apps people love to use

Helby Studio is my independent studio. I build my own apps there, like Colimo, Nautilo and Tatikati, and I help teams as a freelancer.

Jérôme Alves, iOS Product Engineer · Toulouse and full remote · Swift and SwiftUI

Get in touch See my apps

Open to new opportunities

let jerome = ProductEngineer(  passion: [.iOS, .SwiftUI, .ux,            .design, .pointFree],  experience: 15,  location: [.onSite("Toulouse"),             .fullRemote],  apps: [.colimo, .nautilo, .tatikati])jerome.status = .openToOpportunities

My apps

Colimo and Nautilo are the first apps of Lenanimo, Helby Studio’s family brand: apps with a good reason to exist, each with its own animal.

Colimo, the orange snail, peeking out of his shell

Colimo

The garden that grows when the table is calm

Put the iPhone in the middle of the table: while it stays calm, Colimo walks on and picks flowers. When the noise goes on, he hides in his shell and a soft chime invites everyone to settle down.

For the whole family · iPhone

Coming soon to the App Store

Discover Colimo

Bernie, Nautilo’s hermit crab, beaming in his nautilus shell

Nautilo

The memory game you play with your ears

On Nautilo’s beach, every seashell sings a nursery rhyme. Your child listens, remembers and finds the ones that sing the same tune: a gentle game for the ear, memory and attention.

Children aged 3 to 8 · iPhone, iPad and Android

Coming soon to the App Store and Google Play

Discover Nautilo

Website in French for now

Tatikati

A podcast app designed for children and their parents

Tatikati started from a simple idea: children deserve a high-quality, safe and accessible audio experience. I built the app from A to Z, from the product vision to the technical architecture, including the design and the backend. Black-screen mode lets children fall asleep peacefully, with no visual stimulation.

  • Swift 6
  • SwiftUI
  • TCA
  • Vapor
  • gRPC
  • PostgreSQL
Download on the App Store Visit tatikati.app

Experience

15 years building iOS apps for millions of users.

  1. 2024 — today

    Helby Studio

    Founder & iOS Engineer · Full Remote

    My independent studio: I design and build my own apps, and help teams as a freelancer.

    • Swift
    • SwiftUI
    • Agentic development
    • MCP
    • Claude Code
    • Codex
    • Freelance

    • Betclic

      Freelance iOS mission · January — June 2026

      Six months on version 10 of the Betclic app, the major release prepared for the 2026 football World Cup. I mainly worked on the redesign of the iOS app: a new interface for the biggest sporting event of the year.

    • Agentic development

      A studio tooled end to end

      AI agents at every step of the product, with my own skills, MCP servers, token optimisation and automations.

      • Development
      • Design
      • Marketing
      • Social media
      • ASO

    • My apps

      From the idea to the finished product

      Colimo and Nautilo, under the Lenanimo family brand, and Tatikati: product vision, design, code and backend.

  2. 2019 — 2024

    Datadog

    Senior iOS Engineer · Full Remote

    Built Datadog’s public app for on-call users. Focus on performance and observability.

    • Swift
    • RxSwift
    • UX
    • Performance

  3. 2016 — 2019

    Heetch

    iOS Tech Lead · Full Remote

    Technical lead of the iOS team. Moved the app to a modular architecture and set the team’s standards.

    • Swift
    • RxSwift
    • Design System
    • UX
    • Maps
    • Core Location
    • Tech Lead
    • Architecture
    • Mentoring

  4. 2014 — 2016

    FinalCAD

    iOS Lead Developer · Full Remote

    Built the construction site management app. Offline-first work and advanced sync.

    • Swift
    • Offline-first
    • Sync
    • iPad
    • Core Data

  5. 2013

    Deezer

    iOS Developer · Paris

    Built the new user feed and redesigned the settings. User experience and performance.

    • Objective-C
    • Streaming
    • Audio
    • UX

  6. 2010 — 2013

    Novedia

    iOS Developer · Toulouse

    Built and maintained about ten apps for Fnac, Hermès, Total, Les Inrocks and others.

    • Objective-C
    • Performance
    • Core Data

Skills

A complete profile, from code to product vision.

iOS and Swift

  • Swift 6
  • SwiftUI
  • UIKit
  • Combine
  • RxSwift
  • RxCocoa
  • async/await
  • Swift Concurrency

Architecture

  • TCA
  • MVVM
  • Clean Architecture
  • Coordinators
  • Modular Design
  • Dependency Injection

Backend

  • Vapor
  • gRPC
  • Protobuf
  • REST APIs
  • PostgreSQL

Tools

  • Xcode
  • Git
  • Fastlane
  • CI/CD
  • Instruments
  • Proxyman

Specialities

  • Performance
  • Offline-first
  • Backend-driven state
  • Accessibility
  • Internationalisation

Artificial intelligence

  • ChatGPT
  • Codex (CLI)
  • Claude Code (CLI)
  • Cursor Agent
  • Gemini
  • Agentic Development

Product

  • Product vision
  • User Research
  • Analytics
  • A/B Testing
  • Roadmap
  • ASO

Community

Passionate about sharing knowledge and helping fellow developers.

Communities

  • Swift Baguette Admin

    The largest French-speaking Swift community. Daily discussions, mutual help and tech watch.

  • Swift Toulouse Co-organiser

    Monthly meetups for the local iOS community. Talks, networking and knowledge sharing.

Notable contributions

Talks and media

I’m obsessed with the useful detail: the one users never notice, because everything just works.

Jérôme Alves

Let’s talk

An iOS project in mind? A freelance mission? Write to me, I answer quickly.