React • Next.js • Node.js • TypeScript
Production-Ready SaaS & Web Apps Built by Senior Engineers
Full-stack development for startups and scale-ups. From MVP to Series A – without the enterprise overhead or freelancer risks.
_Technologies we master
WHY FLUY?
What makes us exceptional
We combine technical expertise with business vision to deliver software that doesn't just work, but drives your company's growth.
Custom Software Development
We create personalized solutions that meet the specific needs of your business, from MVPs to enterprise systems.
- Senior team, no middlemen
- You own 100% of the code
- Weekly demos and full transparency
OUR SERVICES
Build a Successful Digital Journey
We offer a complete development cycle, from conception to the global scale of your product.
Web & Mobile Development
We create robust and responsive applications using the most modern technologies on the market to ensure performance and security.
- SaaS platforms and dashboards
- Mobile apps with React Native
- APIs and system integrations
Experience Design (UX/UI)
We focus on the user journey to create intuitive interfaces that increase engagement and conversion of your product.
- Research and user flows
- High-fidelity prototypes in Figma
- Design systems ready for development
Infrastructure & Cloud
We implement scalable and secure cloud solutions, ensuring your software supports your growing user base.
- AWS, Vercel and Railway
- CI/CD and automated deploys
- Monitoring, logs and alerts
PAYMENTS & INTEGRATIONS
Payments built into your product, end to end
We integrate payment gateways into e-commerces, SaaS products and marketplaces: from a converting checkout to reconciliation, with security and good engineering practices.
Transparent checkout
Credit card, Pix and boleto inside your own experience, with a flow optimized for conversion.
Subscriptions & recurring billing
Plans, trials, upgrades, dunning and automatic retries for SaaS and subscription clubs.
Split for marketplaces
Automatic split of each sale between platform and sellers, with recipient onboarding.
Webhooks & reconciliation
Idempotent processing of payment events, order status updates and financial reconciliation.
Security & anti-fraud
Card tokenization (card data never touches your servers), anti-fraud and LGPD-compliant flows.
Financial dashboards
Sales, refunds, chargebacks and receivables in admin panels built for your operation.
Ideal for
Experience integrating
HOW WE WORK
A transparent process from start to finish
No surprises: you know what is being built, when it will be delivered and how much it costs.
1. Discovery & proposal
A technical conversation about your goals. Within 48h you receive a proposal with scope, timeline and investment.
2. Weekly sprints
Incremental deliveries, live demos every Friday and full access to the repository and task board.
3. Launch & evolution
Production deploy, documentation and a 3-month warranty. Then we keep evolving the product with you.
Security
Scalability
Performance
LGPD
Cloud Native
Automated tests
Documentation
Code is 100% yours
OUR PORTFOLIO
Projects that Transform Businesses
Discover some of the challenges we've overcome and the solutions we've created for our partners.
High-Performance E-commerce
Scalable platform with payment integration (card, Pix and boleto) and real-time inventory management.
Logistics Management App
Application for fleet tracking and route optimization for carriers in Boston, MA.
Analytics Dashboard
Intuitive interface for visualizing complex data and strategic decision making.
THE FUTURE OF DEVELOPMENT
Engineering that keeps
your product evolving
Agile, transparent development experience focused on real results for your business.
CI/CD & Automation
We implement continuous delivery pipelines to ensure your software is updated quickly and safely.
Scalable Architecture
We design systems ready for growth, using the best engineering practices and only the complexity your stage needs.
LONG-TERM PARTNERSHIP
Support & Evolution
We don't just deliver code; we accompany your product's evolution with specialized technical support and continuous improvements.
CLIENT SUCCESS
A development partner you can trust
50+
Projects delivered
Web, mobile and integrations4.9
Client satisfaction
30+ satisfied clientsFluy delivers high-performance software and personalized technical expertise for maximum business impact.
We don't just build software; we engineer solutions that drive business growth. Our commitment to quality and transparency is what keeps our clients with us.
48h
To send a proposal
1x/week
Live demos
3 months
Bug-fix warranty
100%
Code ownership
More than 30 companies trust Fluy with their projects
Fluy's digital innovation completely transformed our users' experience. It's essential!
Wesley C.
CEO at Busca Planejados
The intuitive interface developed by the team made managing our product much simpler. Excellent work!
Mariana Costa
Product Manager
The backend system is extremely robust. It helped us scale our operation without technical concerns.
João Pereira
CTO at LogiTech
Fluy's technical consulting gave us the clarity needed to choose the right technologies for our MVP.
Beatriz Santos
Founder at EduCloud
The focus on UX/UI really made a difference in our customer retention. Highly recommend!
Lucas Oliveira
Marketing Director
Working with Fluy was a game-changer for our company. Professionalism and high-quality delivery.
Fernanda Lima
Operations Director
Fluy's digital innovation completely transformed our users' experience. It's essential!
Wesley C.
CEO at Busca Planejados
The intuitive interface developed by the team made managing our product much simpler. Excellent work!
Mariana Costa
Product Manager
The backend system is extremely robust. It helped us scale our operation without technical concerns.
João Pereira
CTO at LogiTech
Fluy's technical consulting gave us the clarity needed to choose the right technologies for our MVP.
Beatriz Santos
Founder at EduCloud
The focus on UX/UI really made a difference in our customer retention. Highly recommend!
Lucas Oliveira
Marketing Director
Working with Fluy was a game-changer for our company. Professionalism and high-quality delivery.
Fernanda Lima
Operations Director
WE'VE GOT YOU COVERED
Frequently Asked Questions
How long does it take to build an MVP?
What's the investment to build a project?
Can you integrate payments into my product?
What's included in the project?
How does the day-to-day work?
Do you offer support after launch?
Do we own the source code?
What technologies do you use?
Do you work with international clients?
Why choose Fluy over freelancers or other agencies?
How do we get started?
Still have questions?
Schedule a 30-minute no-obligation conversation
CONTACT US
Let's build your next project
Tell us about your idea or challenge. We reply within one business day.
