> Markdown version of [/jobs/ext/614367-mood-mirrror-technical-cofounder-founding-engineer-mobile-backend-data](https://www.wearedevelopers.com/jobs/ext/614367-mood-mirrror-technical-cofounder-founding-engineer-mobile-backend-data). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mood-Mirrror - Technical Cofounder / Founding Engineer (Mobile + Backend + Data) - **Company:** GET ME IN THE MOOD, LLC. - **Location:** United States (Remote available) - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Amazon Web Services, Data Analysis, Mobile Application Development, Cloud Storage, Databases, Mobile Application Software, PostgreSQL, Raw Data, Data Streaming, Data Storage Technologies, Swift (Programming Language), Firebase, Backend, Kotlin, Data Analytics, Build Tools, Objective C++, Data Pipelines, Serverless Computing, User Accounts - **Published:** June 12, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=7595c10773c4c860 ## About the Role Do you have experience in Swift?, Core Capabilities Strong experience building and shipping mobile apps (iOS or cross-platform; Swift, Kotlin, Java, Objective-C) Experience with backend systems (APIs, databases, auth, cloud infra) Ability to design end-to-end systems (app * backend * data) Experience working with user data pipelines (capture * store * use) Comfort working with early-stage, ambiguous environments Bonus (but not required) Experience with Firebase, Supabase, AWS Amplify, or similar Exposure to ML / AI-powered products (especially on-device) Experience building consumer products with retention loops Basic understanding of data modelling for analytics Mindset Builder first: you ship, not just design Pragmatic: you know how to get things done with near-zero budget Product-oriented: you care about the user experience, not just code Ownership mentality: you think like a founder, not an employee Low ego, high standards ## Description This is not a typical engineering role. You'll be the technical cofounder / founding engineer, owning everything from mobile experience to backend infrastructure to how user data flows through the system. You'll take an existing MVP and evolve it into a scalable, data-driven product, making pragmatic decisions about architecture, speed, and cost at every step. You'll work closely with the CEO and Product Lead to shape both what we build and how we build it. What You'll Own Product Evolution (MVP * Lovable Product) Turn an early prototype into a polished, reliable, engaging app Improve UX, performance, and overall product feel Work with the Product Lead to define what makes MoodMirror habit-forming and valuable Mobile Development Lead development of the mobile app (iOS-first, but flexible) Decide whether to stay native or move to cross-platform Integrate existing on-device emotion AI into a seamless experience Backend & Infrastructure (New) Design and implement a lean, cost-efficient backend Explore a potential move from edge-only storage to secure, scalable cloud storage Set up: * User accounts / auth * Data storage (metadata, emotional signals) * APIs for syncing and retrieval * Make smart tradeoffs (e.g. serverless, BaaS like Firebase/Supabase, etc.) Data Pipeline (Critical) Build systems to capture, structure, and store user data cleanly Ensure data is: Accessible for analysis Well-structured for future models Privacy-conscious and secure Partner with Analytics to enable: Trend analysis Insight generation Future ML use cases In-App Data Experience Turn raw data into simple, meaningful user feedback Build features like: Mood trends over time Streaks / patterns Lightweight visualisations Start simple, but design for future depth Technical Leadership Set the technical direction and architecture Lay the foundation for a future team Potentially hire and lead engineers post-funding ## Related Videos - [Kotlin Multiplatform - True power of native code reuse](https://www.wearedevelopers.com/videos/4-kotlin-multiplatform-true-power-of-native-code-reuse) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [Data Governance in the Era of AI](https://www.wearedevelopers.com/videos/1622-data-governance-in-the-era-of-ai) - [Coffee with Developers](https://www.wearedevelopers.com/videos/354-coffee-with-developers) - [Why Kotlin is the better Java and how you can start using it](https://www.wearedevelopers.com/videos/661-why-kotlin-is-the-better-java-and-how-you-can-start-using-it) - [Coffee with Developers - Dan Mindru - Product Marketing for Developers](https://www.wearedevelopers.com/videos/882-coffee-with-developers-dan-mindru-product-marketing-for-developers) ## Related Articles - [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers) - [Dev Digest 139 - Soft and hard queries](https://www.wearedevelopers.com/magazine/487-dev-digest-139-soft-and-hard-queries) - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [A Guide to Choosing the Right Tools for App Developers](https://www.wearedevelopers.com/magazine/391-a-guide-to-choosing-the-right-tools-for-app-developers) - [Dev Digest 118 - not a total recall](https://www.wearedevelopers.com/magazine/452-dev-digest-118-not-a-total-recall)