CrawlJobs Logo

Founding iOS Engineer

babylist.com Logo

Babylist

Location Icon

Location:
United States , Needham

Category Icon

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

180100.00 - 225082.00 USD / Year

Job Description:

Babylist is looking for a Senior iOS Engineer to join our newest venture—a standalone app that helps families stay connected for all the moments that matter. As a Senior iOS Engineer, you will be an integral part of shaping and building experiences that amplify the natural love and excitement around growing families, from first smiles to first birthdays and beyond. You'll work with a small, in-person team in the Boston area operating autonomously outside of Babylist's current processes and tech stack. In a 9-month sprint, you'll design and rapidly prototype an entirely new product from concept to validated product vision and direction. You’ll collaborate closely with your designer and product manager to build the foundation of our iOS app.

Job Responsibility:

  • Conceptualize, design and develop our new standalone iOS app, taking ownership of the entire development lifecycle
  • Develop features and functionality, ensuring a seamless and delightful user experience
  • Collaborate closely with your designer and product manager to translate requirements into technical specifications and user-friendly interfaces
  • Transform concepts and designs into intuitive and visually appealing iOS app interfaces
  • Collaborate closely with a full-stack web engineer to align on architecture, API design, and more
  • Write clean, efficient, and maintainable code following industry best practices and coding standards
  • Employ various testing techniques, write unit tests, and leverage debugging tools to identify and address any issues or bugs
  • Collaborate effectively with team members, actively participating in discussions and brainstorming sessions
  • Contribute to feature ideation, and providing insights to the team

Requirements:

  • Strong understanding of software development principles, capabilities, and limitations of the iOS platform
  • Well-versed in the intricacies of iOS development and can navigate its unique features and constraints
  • 8+ years of proven experience in iOS app development using Swift
  • Comfortable working with Swift and SwiftUI and have a deep understanding of syntax, features, and best practices
  • Familiar with Foundation, SwiftUI, CoreAnimation and other foundational Apple frameworks and patterns
  • Hands-on experience with SwiftUI, Previews, and rapid prototyping
  • Passion for building consumer-facing products and moving quickly in the zero-to-one of a new product
  • Experience with AI-driven software development practices and tools
  • Solid understanding of the Android ecosystem, with direct Android development experience being a plus
  • Comfortable and enthusiastic about working in an AI-forward environment where AI tools are part of daily operations
  • Embrace using technology to enhance your work while keeping people at the center

Nice to have:

Direct Android development experience

What we offer:
  • Competitive salary with equity and bonus opportunities
  • Company-paid medical, dental, and vision insurance
  • Retirement savings plan with company matching and flexible spending accounts
  • Generous paid parental leave and PTO
  • Remote work stipend to set up your office
  • Perks for physical, mental, and emotional health, parenting, childcare, and financial planning

Additional Information:

Job Posted:
December 06, 2025

Employment Type:
Fulltime
Work Type:
On-site work
Job Link Share:

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Founding iOS Engineer

Software Engineer (Founding iOS)

Highbeam is building the future of business banking and cash management. Our pla...
Location
Location
United States , New York
Salary
Salary:
160000.00 - 260000.00 USD / Year
highbeam.com Logo
Highbeam
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 4+ years of experience building and maintaining iOS applications in production
  • Fluency in Swift and modern iOS development frameworks (e.g. SwiftUI, Combine, or UIKit)
  • Understanding of Apple’s Human Interface Guidelines and a strong product sense
  • Comfortable setting up mobile CI/CD pipelines and using tools like Xcode Cloud, Fastlane, or TestFlight
Job Responsibility
Job Responsibility
  • Own the architecture, implementation, and launch of Highbeam’s iOS app
  • Build intuitive, high-performance user interfaces that reflect complex financial data in a simple way
  • Set best practices for mobile engineering—code quality, testing, CI/CD, analytics, crash reporting
  • Collaborate closely with design to deliver polished, on-brand user experiences
  • Work across the stack when needed, and coordinate with backend engineers to define API needs
What we offer
What we offer
  • Competitive salary and meaningful equity
  • Great location
  • Generous PTO
  • Comprehensive health & benefits package
  • Stipends for lunch, commute, wellness, and purchasing customer products
  • Yearly offsite—most recently we went to Mexico City!
  • Fulltime
Read More
Arrow Right
New

Founding Ios Engineer

About the Founding iOS Engineer Vacancy: The Founding iOS Engineer will be build...
Location
Location
United States , New York
Salary
Salary:
Not provided
weareorbis.com Logo
Orbis Consultants
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Several years building production iOS applications with meaningful consumer-facing scale, quality, and complexity
  • Strong command of Swift and modern iOS development patterns
  • Experience building polished native experiences with strong attention to performance, usability, animation, responsiveness, and edge cases
  • You have led a sizable iOS codebase and had an impact on architectural choices
  • You care deeply about product quality and can translate complex states and workflows into simple, elegant user experiences
  • You feel at ease collaborating closely with backend engineers on systems tradeoffs, data contracts, and APIs
  • You are energized by zero-to-one work and want real ownership, not a narrow lane
  • Ideally, you've worked on high-quality consumer products at top engineering organizations or elite startups where the bar for craft and execution is exceptionally high
Job Responsibility
Job Responsibility
  • Own the iOS app end-to-end across core marketplace flows
  • Create a top-notch native iOS codebase from scratch, taking into account CI/CD, architecture, state management, networking, observability, testing strategy, and release procedures
  • Collaborate closely with Product and Design to create mobile experiences that are user-friendly, polished, reliable, and meticulously detailed
  • Help define their mobile app strategy, including where mobile should lead, how it should differentiate from web, and where it can create the most leverage for the business
  • Working closely with other tech teams (Product, Design, Back-End, Data) and the company leadership team
What we offer
What we offer
  • Equity
  • Fulltime
Read More
Arrow Right

Senior iOS Engineer

We’re hiring a founding Senior iOS Engineer to help us design, develop, and ship...
Location
Location
United States , San Francisco
Salary
Salary:
Not provided
my.casa Logo
Casa
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years in iOS development
  • strong track record of building and shipping mobile applications
  • deep proficiency in Swift and Apple SDKs/APIs
  • passionate about design and user experiences
  • excited to be a founding engineer at an early-stage startup
  • excited to build
  • think and act like an owner
  • roll up your sleeves
  • mission-driven and adaptable
  • thrive on collaboration and problem-solving
Job Responsibility
Job Responsibility
  • Lead the architecture and development of our iOS applications, ensuring a seamless user experience for homeowners and vendors
  • Prototype new features and applications to quickly respond to user needs and feedback
  • Collaborate closely with designers to create intuitive and beautiful user interfaces
  • Ensure the performance, quality, and responsiveness of our applications through continuous testing and refinement
  • Stay current with the latest advancements in iOS development, and integrate new technologies and methodologies as appropriate
  • Level up a growing engineering team by reviewing code and designs of teammates and providing constructive feedback to maintain high quality
  • Fulltime
Read More
Arrow Right

Founding Product Engineer (iOS)

Alinea is building the investing platform for the next generation. We’re looking...
Location
Location
United States , New York
Salary
Salary:
155000.00 - 185000.00 USD / Year
helpcare.ai Logo
Helpcare AI
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 3+ years of experience building and shipping consumer mobile apps
  • Strong experience with Swift / SwiftUI
  • Comfortable working across the stack (APIs, backend, infra)
  • Proven ability to ship quickly and iterate based on real user feedback
  • Strong product instincts—you care deeply about the user experience
  • High ownership mindset—you don’t wait for specs, you drive outcomes
Job Responsibility
Job Responsibility
  • Own the iOS app end-to-end: architecture, performance, and user experience
  • Build and ship fast high-quality features used by hundreds of thousands of users
  • Work directly with founders, product, and design to turn ideas into shipped product in days, not weeks
  • Build across the stack using Node.js, TypeScript, AWS, and MongoDB
  • Launch new financial products (e.g. retirement accounts) from 0 → 1
  • Design systems for onboarding, engagement, and personalization
  • Continuously improve speed, reliability, and product quality
  • Set the standard for engineering velocity and craftsmanship
  • Fulltime
Read More
Arrow Right

Senior Backend Engineer

We’re hiring a founding Senior Backend Engineer to help us design, develop, and ...
Location
Location
United States , San Francisco
Salary
Salary:
Not provided
my.casa Logo
Casa
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Passionate about building robust systems
  • Deep understanding of backend architecture, API design, and database management
  • Excited to be a founding engineer at an early-stage startup
  • Excited to build
  • Think and act like an owner
  • Roll up your sleeves
  • Mission-driven and adaptable
  • Thrive on collaboration and problem-solving
  • Work best in an in-person culture
Job Responsibility
Job Responsibility
  • Lead the architecture and development of our backend systems, ensuring they are scalable, secure, and reliable
  • Design and implement APIs that power our iOS applications and other client interfaces
  • Optimize performance and scalability of our services to handle a growing number of members and data
  • Stay current with the latest advancements in backend technologies and cloud infrastructure, and integrate new technologies and methodologies as appropriate
  • Level up a growing engineering team by reviewing code and designs of teammates and providing constructive feedback to maintain high quality
  • Fulltime
Read More
Arrow Right

Founding Engineer (Unity Mobile)

Founding-level Unity developer to build native mobile app for Pax Historia, an A...
Location
Location
United States , San Francisco
Salary
Salary:
150000.00 - 215000.00 USD / Year
workatastartup.com Logo
YC Work at a Startup
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Shipped Unity apps to the App Store and/or Google Play
  • Can build polished, responsive 2D UI systems in Unity
  • Understands mobile performance constraints and can optimize for memory, battery, and lower-end devices
  • Can integrate Unity apps with REST APIs and backend services
  • Cares deeply about UI/UX polish
  • Willing to work on caching, offline handling, and edge cases
  • Takes ownership of problems and is comfortable advocating for ideas
  • Knows when to say no to complexity or risk
  • 3+ years of experience
  • US citizen/visa only
Job Responsibility
Job Responsibility
  • Building core gameplay loop for iOS and Android: interactive map, action submission, event viewing, and AI-driven chat
  • Creating a performant 2D map rendering system capable of displaying thousands of regions
  • Developing a consistent UI component library that matches web design system
  • Integrating with existing Firebase/Supabase backend and AI services via REST APIs
  • Implementing push notifications and deep linking for seamless user engagement
  • Optimizing for lower-end mobile devices and memory-constrained environments
What we offer
What we offer
  • 0.25% - 1% equity
  • Non-matching 401k plan
  • Fulltime
Read More
Arrow Right

Senior Mobile Engineer

We are looking for a highly experienced Mobile Engineer (React Native) to own th...
Location
Location
Malaysia , Kuala Lumpur
Salary
Salary:
Not provided
pavebank.com Logo
Pave Bank
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Proven experience building production-grade mobile applications from scratch
  • Expert in React Native + TypeScript, with deep frontend knowledge
  • Strong understanding of mobile performance, security, and UX best practices
  • Comfortable making technical decisions and driving standards
  • Experience setting up CI/CD pipelines and automated testing workflows
  • Independent, proactive, and able to thrive in a startup environment
  • Passionate about fintech, security, and building scalable products
  • Minimum 5 years of mobile development experience, ideally with full lifecycle experience from scratch to production
  • Experience as a founding or early mobile engineer at a fintech or high-growth startup is a strong plus
  • Familiarity with cross-platform challenges and optimizing for both iOS and Android
Job Responsibility
Job Responsibility
  • Architect and build a mobile banking application using React Native with TypeScript
  • Deliver high‑quality, responsive, and performant UI/UX in collaboration with designers and product owners
  • Integrate with backend services and third‑party APIs securely and reliably
  • Set up and maintain CI/CD pipelines for automated builds, testing, and deployments
  • Set standards for code quality, performance, security, and maintainability
  • Define and execute a strong mobile testing strategy (unit, integration, and end‑to‑end tests)
  • Champion code quality through clean code, reviews, documentation, and best practices
  • Monitor, measure, and improve app performance, stability, and scalability
  • Partner with cross‑functional teams (design, backend, QA, product) to ship features end‑to‑end
  • Continuously identify opportunities to improve development processes and tools
  • Fulltime
Read More
Arrow Right

Senior Product Designer

Craft best-in-class products that solve real-world problems facing homeowners. W...
Location
Location
United States , San Francisco
Salary
Salary:
Not provided
my.casa Logo
Casa
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years in product design
  • Strong track record of designing and shipping mobile apps
  • Deep proficiency in Figma
  • Passionate about user-centered design
  • Excited to be a founding designer at an early-stage startup
  • Thrive in fast-moving, unstructured environments
  • An owner, not a renter
  • Ready to roll up your sleeves and get to work
  • At your best around others
  • Mission-oriented and stage-aware
Job Responsibility
Job Responsibility
  • Lead the design process for our iOS apps, ensuring a seamless user experience for members and vendors
  • Prototype and iterate on new features to quickly respond to user needs and feedback
  • Collaborate closely with engineers to create intuitive, beautiful, and functional user interfaces that bring our product vision to life
  • Fulltime
Read More
Arrow Right