01 · REQUIREMENTS
We define what to build
45-min discovery call to align on goal, users, scope, and success metrics. You leave with a written brief and a fixed quote — no strings attached.
Available · 2026 AWS Community Builder · Dev Tools MX
$john_kleinad
Full-Stack Product Engineer · Freelance
I bring your ideas to life with you — not just build them. I guide every technical decision so your product works for your business.
Co-Founder & CTO at Yauz Inc. — proptech SaaS with 340+ real estate agents on the waitlist. Named AWS Community Builder in 2026 (Dev Tools). Co-organizer of AWS Community Day México — 1,800+ attendees.
— 360 × 450 —
glitch by design
340+
Real estate agents on Yauz Inc. waitlist
Dev Tools
AWS Community Builder · 2026 (Mexico)
1,800+
Attendees · AWS Community Day México (co-organizer)
Speaker
AWS user groups, tech & student communities
~/what-i-do.md
john_kleinad /what-i-do
The whole product. One person.
I'm a one-person product team — the same engineer who sketches the wireframe pushes to prod. Fewer meetings, faster iterations, direct access to the person making decisions.
02 · DESIGN
We design the screens
Wireframes first, then hi-fi Figma. We iterate until you approve. Mobile-first and accessibility-aware. Zero surprises once development starts.
03 · DEVELOPMENT
I build the product
Next.js, React Native, Node, GraphQL, PostgreSQL. Typed and tested, with weekly demos — you watch the product take shape, not just the invoices.
04 · PRODUCTION
I launch and maintain
AWS infrastructure, App Store + Play submission, observability, and post-launch fixes. Maintenance and 24/7 support included from day one.
~/services.md
john_kleinad /services
Five services. Quoted after a 45-min call.
Starting prices in USD. Every service includes maintenance, 24/7 support, and clean infrastructure — not just code.
~/services/landing.tsx
01 · LANDING PAGE / MARKETING SITE
A one-page site that turns visitors into customers.
Who it's for
For founders launching a product, campaign, or pre-order who need to be online fast and start collecting real customers. Built from scratch — no templates, no website builders.
What's included (depending on your needs)
- ✓Custom design — UI/UX from scratch, not a Wix template.
- ✓Mobile-first — Looks great on phones and laptops.
- ✓SEO-ready — So Google can find you.
- ✓Analytics setup — You'll see real visitor numbers.
- ✓Hosting + your domain — Deployed and live, with your custom domain wired up.
- ✓Sales-driven copy — Writing that actually converts.
- ✓Maintenance & 24/7 support — I'm your direct line.
~/services/webapp.tsx
02 · WEB APP / SAAS DASHBOARD
A custom product frontend with auth, dashboards, and admin panels.
Who it's for
For teams that need a custom product frontend — admin panels, client dashboards, real-time data flows, role-based access. Not a no-code platform; a real product you can scale.
What's included (depending on your needs)
- ✓Auth + roles — Cognito or equivalent.
- ✓Admin + client panels — Internal tools and customer-facing UI.
- ✓API integration — REST or GraphQL.
- ✓Production CI/CD — Automated deploy pipeline.
- ✓Observability — Logs, metrics, error tracking.
- ✓Maintenance & 24/7 support — I'm your direct line.
- ✓Scalable infra — Architected to grow with you.
~/services/mobile.tsx
03 · MOBILE APP (IOS + ANDROID)
Both stores from one codebase — native-feeling, half the cost.
Who it's for
For products that need to live on phones — both stores from one codebase. Faster, cheaper, and easier to maintain than building native twice.
What's included (depending on your needs)
- ✓iOS + Android — From one React Native + Expo codebase.
- ✓Auth + push + deep links — Full lifecycle support.
- ✓Backend included — AWS Amplify or Node.js — your choice.
- ✓Store submission — App Store + Google Play — I handle it.
- ✓Analytics + crash reporting — You see how users behave.
- ✓Maintenance & 24/7 support — I'm your direct line.
- ✓Custom design — Native-feeling UI on both platforms.
~/services/aws.tsx
04 · AWS INFRASTRUCTURE / CLOUD SETUP
Cloud setup from scratch — or a clean migration off legacy hosting.
Who it's for
For startups setting up cloud from scratch, or teams migrating from legacy hosting. By an AWS Community Builder — fewer surprises, smarter costs.
What's included (depending on your needs)
- ✓Serverless architecture — Lambda + API Gateway.
- ✓Auth with Cognito — Managed user pools + identity.
- ✓Storage on S3 — Files, assets, backups.
- ✓Database setup — DynamoDB or RDS — your scale, your choice.
- ✓Cost review — Identify and trim unnecessary spend.
- ✓Observability dashboards — CloudWatch + metrics you'll actually use.
- ✓Maintenance & 24/7 support — I'm your direct line.
- ✓Clean infra-as-code — Reproducible, version-controlled, yours.
~/services/ai.tsx
05 · AI INTEGRATION / AGENTS + BEDROCK
AI that actually moves your business — agents, chatbots, and data pipelines.
Who it's for
For teams ready to ship real AI features — chatbots that close deals, agents that handle support, pipelines that turn documents into insights. Enterprise-grade models, your data stays yours.
What's included (depending on your needs)
- ✓AWS Bedrock setup — A wide catalog of language models.
- ✓Chatbot or AI agent — Conversational UI wired to your business logic.
- ✓Data pipelines with AI — Document analysis, summarization, classification at scale.
- ✓RAG / knowledge base — Your data, retrievable by the model — answers grounded in your truth.
- ✓Guardrails + cost controls — Token budgets, content filters, observability dashboards.
- ✓Maintenance & 24/7 support — I'm your direct line.
~/experience.md
john_kleinad /experience
Six years. Four roles. One trajectory.
From IT support to leading platform redesigns and creative direction for AWS-scale events. Every step compounds into the judgment I bring to your product today.
2023 – Present
Independent Product Engineer
- ›Cloud Engineering — AWS Production infrastructure for client and personal projects: Amplify, Cognito, S3, Lambda, CloudFront. Named AWS Community Builder in 2026 (Dev Tools), Mexico.
- ›Speaker & Workshop Lead Talks at AWS user groups, tech communities, and universities across Mexico. Co-organizer of AWS Community Day México (~1,800 attendees).
- ›Bespoke Web Product Landing pages that sell, in-house CRMs and CMSs, custom platforms for SMBs and agencies. Legacy WordPress migrations to modern React + Vite + AWS stacks.
- ›Creative Direction Full creative direction of AWS Community Day México 2025: visual identity, official site, social assets, swag, stage frames, and attendee tools. Recognized by AWS leadership.
Oct 2022 – Nov 2023
Web Developer
GRUPO TRACSA
Built internal tools for one of Mexico's largest equipment distributors — a referral rewards store, a loan tracking system with GPS integration, and automated reporting tools used across the organization.
Jan 2021 – Jun 2022
Frontend Developer
XOY CAPITAL / UPICK
Led the full redesign of Upick, a betting platform — rebuilt from scratch in Next.js with a mobile-first approach. Reduced user complaints about navigation complexity, introduced dark mode, and delivered a thumb-friendly UI. The new stack was adopted across the entire conglomerate within 5 months.
Aug 2019 – Jan 2021
IT Support & Systems
VANCOUVER WINGS
Reduced technical support wait times for branches and franchises by implementing efficient internal processes and tooling. Trained staff for franchise openings, managed system and equipment installation, and maintained IT infrastructure at the corporate office and branches.
~/stack.md
john_kleinad /stack
My working tools.
Battle-tested in production. No buzzword chasing — every tool here has shipped a real product.
★ AWS COMMUNITY BUILDER · 2026
AWS-native infrastructure, end to end.
Named AWS Community Builder in 2026 (Dev Tools), Mexico. Co-organizer of AWS Community Day México — the largest AWS community event in the world.
AWS AmplifyAmazon CognitoAmazon S3Amazon EC2Amazon CloudFrontAWS Lambda
FRONTEND
ReactNext.jsTypeScriptViteTailwind CSSshadcn/uiFramer MotionReact Hooks
MOBILE
React NativeExpoTypeScript
BACKEND & APIS
Node.jsGraphQLApollo ClientPostGraphilePostgreSQLREST APIs
DEVOPS & DEPLOY
GitHub ActionsGitHubGitDockerCI/CD
ARCHITECTURE & PATTERNS
API ConsumptionFrontend/Backend SeparationProject StructuringThird-party IntegrationsReact Componentization
DESIGN & TOOLS
FigmaVisual Studio CodePostmanChrome DevTools
~/work.md
john_kleinad /work
The case file: Yauz.
Currently one full case study. More coming as projects ship.
CASE FILE · 2024–PRESENT
Yauz — A real estate business in one platform.
From whiteboard to live platform serving brokers across LATAM. Backend, frontend, mobile, infra — built end-to-end.
~/contact.md
Now booking · Building deliberately
Have a product to ship?
45-min discovery call. If I can't help, I'll tell you in 5 minutes and recommend someone who can.