I turn ideas into
mobile apps
I'm Ilich Lênin, a Mobile & Full-Stack Developer with 12+ years in tech. Today I lead the engineering of a major financial institution's mobile app, used by millions of people — and I bring that same standard to your project.
- iOS & Android
- Google SEO
- Post-launch support
Everything your business needs to grow online
From the app in your customer's hand to the system that automates your operations. End-to-end solutions, from design to launch.
iOS & Android Apps
Cross-platform native apps with React Native: one codebase, published on the App Store and Google Play, with great performance, offline mode and OTA updates.
I want thisWebsites & Landing Pages
Fast, Google-optimized websites built with Next.js. Pages that load in seconds, rank in search results and turn visitors into customers.
I want thisWeb Platforms & Portals
Student portals, customer areas, admin dashboards and custom SaaS platforms to automate your business operations.
I want thisBackend, APIs & Cloud
Secure, scalable APIs with Node.js, NestJS and GraphQL, hosted on AWS with PostgreSQL or MongoDB databases and CI/CD pipelines.
I want thisArtificial Intelligence
LLM integration into your product: chatbots, automated data extraction, intelligent matching and automations that save hours of work.
I want thisConsulting & Tech Lead
Architecture, code reviews, team mentoring and technical leadership to get your product off the ground or scale what already exists.
I want thisReal projects, live and on the stores
Apps published on the App Store and Google Play, web platforms and new products being built. Click and check them out.
Silvanys
An app for international trade companies that brings import and export operations together in a simple, modern mobile experience.
- Foreign trade
- Mobile-first
- New product
AutoPartsSEO
An SEO-focused platform for the auto parts market, helping stores and distributors get found on Google by people searching for parts.
- SEO
- Auto parts
- Web platform
InstaCarro
A vehicle auction platform connecting dealerships with people who want to sell their car. Real-time bidding, high traffic and GraphQL/REST API integration.
- Real-time bidding
- High traffic
- Web + Mobile
UnyApp · Unymos
A platform built from scratch to digitize contracts, quotes and customer accounts for funeral assistance, with offline-first sync and secure payments.
- Zero to launch
- Offline-first
- Payments
TeamMove
A SaaS app for field team management, operations tracking and business metrics, used by companies to manage their workforce.
- B2B SaaS
- Team management
- Metrics
IOA Criciúma
A responsive, search-optimized institutional website together with a Student Portal featuring login, a restricted area and access to academic information.
- Website + System
- Logged-in area
- Responsive
A major financial institution's app
I currently work as Tech Lead at Minsait (Indra Group) on the mobile app of a major financial institution: a mission-critical app with millions of daily active users, zero tolerance for failure and the highest security standards.
Big-company experience, partner-level attention
With a B.S. in Information Technology from UFSC, I started in tech over 12 years ago and have specialized in the React, React Native and Node.js ecosystem for the last 7. I've been a startup CTO and founder, worked at Thomson Reuters with international teams, and today I lead the engineering of a major financial institution's app.
For you, that means a well-architected, secure, fast project that's ready to grow — with clear communication from start to finish.
- 2023 — Present
Tech Lead & Full-Stack · Minsait (Indra Group)
Technical leadership of a major financial institution's mobile app, used daily by millions of people, focused on security, high availability and performance.
- 2023
Mobile Developer · Unymos
Built UnyApp end-to-end in React Native, with offline sync and payment flows.
- 2022 — 2023
Full-Stack Engineer · Wa Project · InstaCarro
Web and mobile solutions for a vehicle auction platform with Next.js, React, NestJS and PostgreSQL.
- 2019 — 2023
CTO & Technical Founder · Prov · Fashion Tech
Built the startup's entire ecosystem: apps, a Next.js storefront and a serverless backend on AWS.
- 2021 — 2022
Mobile Developer · TeamMove
Developed and maintained the team management SaaS app with React Native and Node.js.
- 2015 — 2021
Technical Product Owner · Thomson Reuters
Product management with international teams. Global innovation finalist in 2019 with an AI solution.
From first contact to launch
A transparent process with frequent deliveries, and you following every step.
Discovery Call
I learn about your business, your goals and what the project needs to deliver. You get a clear scope and a quote with no surprises.
Design & Prototype
Screens designed for conversion and usability. You approve the look before a single line of code is written.
Development
Weekly deliveries so you can follow progress, with clean, tested code that's ready to grow.
Launch & Support
Store and web publishing, SEO and analytics setup, and ongoing support after delivery.
Frequently asked questions
How much does it cost to build an app?
It depends on features, integrations and platforms. After a quick chat on WhatsApp, I'll send you a detailed, no-obligation quote.
Do you build for iOS and Android at the same time?
Yes. I use React Native, which allows a single codebase for both platforms, reducing cost and time without giving up the native experience.
Do you publish the app on the App Store and Google Play?
Yes. I handle the whole publishing process, including account setup, signing, store reviews and future updates.
Will my website show up on Google?
Yes. Websites are built with Next.js and technical SEO best practices: fast loading, structured data, sitemap and optimized metadata.
Do you work with clients outside Brazil?
Yes. I'm based in Santa Catarina, Brazil, and work remotely with clients worldwide in English, Portuguese or Spanish.
Ready to bring your project to life?
Message me on WhatsApp, tell me your idea and get a no-obligation quote within 24 hours.