Full-stack & mobile developer and project manager with 6+ years building products across web, mobile and backend systems. I care about clean APIs, real users, and shipping on time.
It started with learning during the COVID break, hacking together small tools and a voting system for my high school. Since then, I've gone from freelance experiments to working with startups, remote teams and eventually leading my own products.Every chapter sharpened how I think about systems, users and what it means to ship reliably in production.
Building a multi-channel platform that helps brands run and track campaigns across TikTok, Meta, Google and more.
Led the frontend for a learning & assessments platform, working with a fully remote, cross-timezone team.
Backend engineer at a lean startup, focusing on reliability, performance and core product features.
Started my engineering journey — learning, experimenting and taking on small projects to sharpen real-world skills.
A mix of shipped products, ongoing platforms and experiments. Most of these started from a real problem around me — marketing, student life, gifting — and grew into systems with real users attached.
We build polished mobile apps, high-converting websites, premium UI/UX, and time-saving automations for growing businesses — MVPs in 2–6 weeks, fixed pricing, senior oversight, and full code ownership.
Realistic job simulations for engineers with AI-generated tickets, full code environments, CI/CD pipelines, and objective scorecards — helping developers practice shipping production-ready code instead of trivia-style tests.
A mobile marketplace that connects users with local laundry & dry-cleaning vendors, offering seamless pickup/delivery scheduling, tracking, pricing, and payments.
Ad-supported mobile streaming app for movies and TV shows with offline downloads, personalized recommendations, smooth playback, and modern React Native architecture.
I care less about chasing every new framework and more about picking the right boring tools, wiring them cleanly and shipping stable things that can be maintained when everyone is tired on a Friday evening.
Stack philosophy
I like stacks that are boring enough to be reliable but modern enough to be fast to work in: strong typing, predictable data models, simple deployments and observability that actually points at the bug.
What this stack is good at
I'm Joshua — I design, architect and ship software across web and mobile. I care about real users, reliable systems and keeping the gap between "we should build this" and "it's live in production" as small as possible.
Joshua John U
Full-stack & mobile engineer • Product-minded
I like working on products that sit close to real life — tools for students, marketing systems for small businesses, gifting experiences that have to ship on time. A lot of my projects start as "this is frustrating in real life" and turn into platforms with dashboards, APIs and ops behind the scenes.
My background in Mechatronics makes me comfortable with systems thinking: inputs, constraints, feedback loops. On the software side, that shows up as clear architectures, predictable data flows and an obsession with "what happens when this fails?" before it hits production.
I'm happiest when I'm pairing product thinking with engineering — talking to users, shaping what we&aposre building, then going deep into code until it ships.
Professional snapshot
2020 → NowCertifications & formal learning
GrowingCertified Project Director (CPD)
CompletedFormal project delivery and governance, applied to real-world software projects.
SAP Project Systems (PS)
In viewIn view — connecting engineering work with structured enterprise project processes.
Cloud & production systems
OngoingActively working with cloud-hosted services; open to formal AWS/GCP certs as I solidify patterns.
Current focus
What I'm leaning intoI like documenting how things are built — the trade-offs, the versions that didn't ship and the lessons from real projects. A proper blog is on the way; for now, think of this as a preview of the kinds of notes I want to publish.
Notes from building Noppla and other campus tools — constraints of chat-first UX, timetables, reminders and data models that don’t fight you.
When this goes live, I'll share deep dives on how I design systems for student life, marketing and gifting — not just screenshots, but decision logs and trade-offs.
Thoughts on choosing tools you can still debug at 1 a.m. and why most products don’t need a brand-new framework to be valuable.
How I think about energy, focus blocks, and not turning every idea into a half-finished repo.
First few posts will likely be from real projects — Tervlon, DevSim, DearSenda, Noppla. Less "top 10 tips", more "here's what actually happened."
Backend systems, mobile apps, dev tools, hardware integrations — if it involves designing how things fit together and actually run in the real world, I'm interested. Share a bit about the problem and we can figure out the architecture, trade-offs and next steps.
Direct contact
I balance responses around school and existing work. If I'm not a good fit for the problem, I'll say so early rather than dragging it out.
Where I'm most useful
Topics & how I like to work
Things I naturally enjoy thinking about:
I prefer clear context, written decisions and honest trade-offs over buzzwords. If that sounds like you, we'll probably get along.