Upwork home
Sign up
Secondary
Stephen M. Status: Offline
Los Angeles, United States
100% Job Success
Top Rated Plus

From Idea to App Store | Full-Service Development for Startups

Hi, I’m Stephen! If you’re a startup founder, I’m the product partner you want in your corner. I don’t just design and build apps. I lead founders through the full product journey, helping them go from rough idea to category leader. Not only do my clients get clean code and polished screens, they get strategy, guidance, and a partner who sees around corners. Founders often come to me overwhelmed, unsure of what to build first, or how to turn their vision into something real. They leave with a product they’re proud of - and the clarity to scale it. Here’s what you can expect when we work together: • I’ve lived the founder journey. I built and scaled my first app in college leading to a successful acquisition. I know how to think lean, move fast, and focus on what matters. • You're never guessing. From day one, I bring structure, clarity, and momentum. Daily updates. No black-box development. No surprises. • Top tier full development. I lead every project personally and work with a vetted in-house team of senior engineers. From frontend to backend, we handle every line of code, every screen, and every system, so you don’t have to juggle multiple freelancers or vendors. • Strategy baked into every step. I’ll help you make smart product decisions, cut unnecessary features, and design around your core value, not distractions. • You’ll get my guarantee. I include unlimited revisions on all designs, and I don’t stop until you’re genuinely satisfied. • I’m in it with you long-term. I support clients through launch, growth, updates, and scaling. I’ve built apps used by 4M+ users, and I know how to grow with your product. Client success is the only metric I care about - and I’ve built a reputation around that. Here’s what they say: ⭐️⭐️⭐️⭐️⭐️ “Stephen is a class act. I’m a seasoned professional from big tech and can say with authority: Stephen offers top-shelf mobile design and development services. He’s an adept product designer and strategist with instincts that rival the best of the best.” ⭐️⭐️⭐️⭐️⭐️ “If you have an app - Stephen is your guy. He’s highly responsive, professional, creative, detail-oriented, and knows way more than just dev work. GTM, product, growth—you name it. I saw someone gave him six stars... I say seven!” Let’s build something that actually moves the needle. Whether you’re starting with a blank slate or rebuilding after round one, I’ll meet you where you are and get you where you need to go. Send me a message or invite me to your project - let’s turn your vision into something remarkable. - Stephen Mathews Keywords: Mobile app development, iOS development, Android development, full-stack development, startup product strategy, UI/UX design, product design, Figma design, MVP development, app prototyping, React Native, Flutter, Swift, Kotlin, Laravel, Python, Java, Node.js, React.js, SaaS development, mobile UX, app UI, growth strategy, subscription apps, mobile product design, custom app development, lean startup, founder support, end-to-end product development
Work history
Stephen M. has more jobs. Create an account to review them
Skills

Skills

Testimonials

Endorsements from past clients

"I've worked with Stephen on several projects over the past 2+ years. His attention to detail is unmatched and always ensures maximum quality before the project is approved. His personable, hard-working, & professional qualities make him a pleasure to do business with. Would recommend him to anyone looking for top quality and efficient work."

Nick G.
IOS Development/ UI UX Design May 2022

Verified

Browse similar freelancers