Chase Martin

Open to senior iOS roles

Full-time or contract. I am also taking project work; send a short brief and I'll come back with scope, timing, and a price estimate.

Email meStart a project brief
Email me

Chase Martin

Senior iOS engineer. I ship complete apps end to end, from SwiftUI on the client to the Vapor and PostgreSQL backend behind it.

Email meProject work

Projects

RoomAid

A roommate coordination platform for iOS, built end-to-end by me: SwiftUI + TCA on the client, an event-sourced Vapor backend, deployed with Docker on AWS. It is the foundation the other products here are built on.

  • Status updates
  • Real-time shared lists
  • Check-ins & nudges
  • Pets, rooms, vehicles & appliances
  • Profiles & schedules
  • Day-timeline calendar
  • SwiftUI
  • TCA
  • Vapor
  • Docker
  • AWS (EC2, SSM Parameter Store, IAM)
RoomAid home screen showing a shopping trip in progress and tasks due today
RoomAid status feed showing each housemate's availability for the day
RoomAid day-timeline calendar with two overlapping events laid out side by side
RoomAid live shopping trip with items being checked off in real time
RoomAid task agenda showing recurring chores with assignees and progress
RoomAid lists screen showing shared household lists and their stocked state

Hellopost

A focused status-update app built on the same platform as RoomAid: a quick way for roommates to share where they are and what's next, without the full coordination toolkit. Live on the App Store.

  • Status updates
  • Built on the RoomAid platform
  • SwiftUI
  • TCA
  • Vapor
  • Docker
  • AWS (EC2, SSM, IAM)
Hellopost space feed screenshot
Hellopost availability and quiet hours screenshot
Hellopost status picker screenshot
Hellopost saved status sheet screenshot

What's next

Group shopping app

Parked while RoomAid has my attention.

A real-time shopping app for households and small groups. One person is at the store and everyone else follows the trip as it happens, answering questions from the aisle before the wrong thing ends up in the cart.

  • SwiftUI
  • TCA
  • Vapor
  • Real-time

  1. Real-time sync and sign-in already built

    Done

    The infrastructure this depends on is running in my other apps, so none of it has to be invented here.

  2. A live trip the group can follow

    Planned

    What is in the cart, what is still open, and how far along the shopper is, updating as it happens.

  3. Questions answered from the aisle

    Planned

    The shopper raises a question against one item and someone at home answers it in seconds.

See the plan →

Experience

Founder & Sole Engineer, RoomAid / Hellopost

Jun 2024 – Present · Portland

Built RoomAid, a full-stack roommate coordination platform, owning product, system design, and infrastructure end-to-end (SwiftUI + TCA, Vapor, Docker, AWS EC2). Shipped Hellopost, a lightweight status-update app built from the same shared modules and live on the App Store. Designed core systems including an RRULE-based scheduling engine, a custom calendar layout for overlapping events, and actor-based backend concurrency.

iOS Engineer, Citizen

Nov 2022 – Jun 2024 · Portland (Remote)

Diagnosed and fixed difficult Core Bluetooth synchronization bugs in Citizen's existing safety-keychain integration, ramping quickly in an unfamiliar hardware stack. Developed features across a large SwiftUI codebase built on The Composable Architecture, and built Swift macros to reduce boilerplate and streamline feature development.

iOS Engineer, DoorDash

Aug 2020 – Jan 2022 · Portland (Remote)

Built core shopping flows for Convenience & Grocery in the Dasher app, including item picking, barcode scanning, weighted items, and substitution handling. Owned the iOS side of the redesigned post-checkout substitution experience, defining client behavior for Android parity and coordinating with product and design, and converted the order cart module to MVVM, consolidating competing state paths that were producing race-condition bugs in a critical app flow.

iOS Engineer, Raya

Aug 2017 – Aug 2020 · Los Angeles

Drove the migration of the legacy Objective-C codebase to Swift, personally converting most of the Objective-C that remained when I joined, while ongoing product work continued. Built and maintained a live map view with dynamic tray interactions and heavy state, and implemented a custom waterfall-layout photo picker tuned for smooth fast scrolling through large local photo libraries.

Coding Instructor, App Academy

Jan 2017 – Jul 2017 · New York

Taught Ruby and JavaScript through lectures, code reviews, and pair programming.

About

I'm a senior iOS engineer with nine years of professional experience, and since 2024 I've also built my own products across the full stack. Inside teams I debugged Core Bluetooth issues at Citizen, shipped core shopping flows at DoorDash, and drove Raya's Objective-C-to-Swift migration. My independent work spans product, iOS, backend, and infrastructure, and Hellopost is live on the App Store.

Previously at
  • Citizen
  • DoorDash
  • Raya

Tools I reach for

iOS
  • Swift
  • SwiftUI
  • UIKit
  • The Composable Architecture
  • Swift Concurrency
  • Swift Macros
Backend & infra
  • Vapor
  • PostgreSQL
  • Docker
  • AWS (EC2, SSM Parameter Store, IAM)
  • REST APIs
Chase Martin

Hiring an iOS engineer, or building something?

Email me