Full-stack android app developer (Part-time, Equity only)

Full-Stack Android Developer — KefiloAbout Kefilo
Kefilo is a NutritionTech and personalised wellness transformation company building the future of nutrition through Nutrition Intelligence, functional nutrition and intelligent food manufacturing.
We are building a technology-driven ecosystem that combines personalised nutrition, fitness, mental wellness, food and behavioural data to help people achieve measurable long-term transformation.
Role
Full-Stack Android Developer — Equity-Based Founding Role
We are looking for a Full-Stack Android Developer who can take ownership of Kefilo’s Android application and the backend systems powering it.
This is an equity-based founding-team opportunity for someone who wants to build the product from an early stage and take long-term technical ownership.
Key Responsibilities
Android Application Development
Build and maintain Kefilo’s Android application.
Develop smooth, reliable and scalable mobile experiences.
Implement onboarding, assessments, subscriptions, food programs, wellness tracking and customer journeys.
Backend Development
Build and maintain backend services, APIs and business logic.
Design and manage databases, authentication and user-management systems.
Develop scalable architecture to support growing users and products.
Nutrition Intelligence Integration
Integrate Kefilo’s Nutrition Intelligence Engine into the application.
Support personalised nutrition recommendations, food plans, transformation programs and intelligent decision-making.
Work with Data Scientists and Nutritionists to convert intelligence frameworks into usable product features.
Customer & Transformation Journey
Build workflows covering onboarding → assessment → personalisation → subscription → food/nutrition delivery → fitness/wellness tracking → progress.
Implement personalised dashboards, recommendations, reminders and progress reports.
Support engagement, compliance and retention features.
FoodTech & Product Integration
Build technology for food/product discovery, ordering and subscription management where required.
Integrate product, meal, recipe and nutritional databases.
Support future intelligent food manufacturing and FoodTech systems.
APIs & Third-Party Integrations
Integrate payment gateways, communication services and other third-party APIs.
Support future integration with wearables, health devices and external data sources.
Build reliable data synchronisation systems.
Performance, Security & Scalability
Optimise Android application performance and reliability.
Implement appropriate security and privacy practices for customer and health-related data.
Build systems capable of scaling with Kefilo’s growth.
Testing & Deployment
Debug, test and continuously improve the application.
Manage Android releases, backend deployments and technical documentation.
Establish clean development practices and maintainable code.
Product Collaboration
Work closely with Product, Nutrition, Data Science, FoodTech, UI/UX and Operations teams.
Translate business and nutrition requirements into functional technology solutions.
Participate in product testing, user feedback and continuous improvement.
Ideal Candidate
Strong experience in Android application development.
Experience with Kotlin/Java and Android development frameworks.
Strong understanding of REST APIs, backend systems and databases.
Experience with technologies such as Kotlin, Android SDK, Firebase, Node.js/Python, SQL/NoSQL and cloud platforms is preferred.
Experience building consumer-facing applications is an advantage.
Experience with subscription, payment, e-commerce, health, wellness, nutrition or data-driven products is a plus.
Strong problem-solving and ownership mindset.
Comfortable working in an early-stage startup with ambiguity and rapidly changing requirements.
Engagement
Position: Full-Stack Android Developer
Nature: Equity-Based Founding Role
Time Commitment: Part-time, approximately 20–25 hours/week
Location: Remote / Hybrid
Compensation: Equity-based; no fixed salary at the current stage
Fixed compensation: Planned after fundraising and revenue stabilisation
Equity: Based on technical expertise, contribution, responsibility, commitment and long-term ownership
Vesting: 5-year vesting for core founding members
What You Will Build
You will help build the technology backbone of Kefilo’s personalised nutrition and wellness ecosystem — connecting customers, Nutrition Intelligence, food products, subscriptions, transformation programs, data and future FoodTech systems through a single scalable platform.
This role is suited for someone who wants to move beyond writing code and become a long-term technology owner within the founding team.
Skills: android,intelligence,application

Work arrangement
No