Fullstack developer · In the field since 2015
I'm Filipe Ferreira. I build websites, online booking and custom back-office tools, and I fix existing systems that have stopped working well. You always deal with me directly, from quote to delivery.
This website: 100 for performance, accessibility, best practices and SEO in Lighthouse.
Aurora Cabeleireiros
Today's schedule
Imobiliária Horizonte
Viewing requests
Farmácia Sol Nascente
Today's reservations
Live examples
Three complete examples: the website customers see and the back office the business uses. Book, request viewings and click around freely. The data is fictitious and stays in your browser.
The demos are in Portuguese, the language of the businesses they simulate.
Hair and beauty salon
Customers book online and only see free slots. The team manages the schedule and customer records, and follows the salon’s numbers.
Real estate agency
Property search with filters and a viewing request on every listing. Behind it, a board with the requests and property management.
Neighbourhood pharmacy
Customers reserve medicines and book services such as blood pressure checks. The team prepares reservations and reminds people whose long-term medication is running out.
Projects
A small selection of software, platform and website projects. It is not possible to bring all my work together here.
As a matter of principle, I do not disclose the clients I work with or their projects, out of respect for the privacy and identity of each business.
Helps people find the cheapest medicine in Portugal by comparing prices in one place, instead of checking pharmacy by pharmacy.
What it includes
Technical side
User accounts with login and a database of medicines and prices.
A website built for a design company to present its work, with a polished look that enhances the portfolio and makes it easy to get in touch.
What it includes
Technical side
Admin panel with login so the company can manage its work.
A school calendar designed to help teachers organise their monthly and yearly lesson plans more easily, in one place.
What it includes
Technical side
Teacher accounts with login and plans saved to the account.
Guest registration, photo uploads during the party and a client area for the organisers to follow the event.
What it includes
Technical side
Client area with login, with photos and registrations stored on the server.
Websites for small businesses
For restaurants, clinics, shops, studios and other small businesses that need to be online without the hassle: a few pages, contact details always visible and content that is easy to update. Every website is quoted individually, with a fixed price agreed in writing before work starts.
Visual layout with a work gallery
Opening highlight with a call to action, a gallery of recent work by category, a quote request button and a direct WhatsApp button.
What it includes
Sober, institutional layout
A clear presentation of services, team, opening hours and location, with a call to action to book an appointment.
What it includes
Warm layout with a menu
Warm colours, an always up-to-date daily menu, opening hours and bookings by phone or WhatsApp.
What it includes
Screenshot of a sample built with placeholder content to show the style and features. Not client work.
I can adapt any style to your business's identity and content. More samples are available on request.
Services
Three ways to work together. You always get a fixed, written quote before I start.
A fast website that looks good on mobile and is easy to find on Google, with your contact details always at hand.
Your customers book on their own and your team sees everything in one place: schedule, customers and business numbers.
Is your website or system slow, full of errors or down? I find the cause, fix it and keep it stable, including PHP and Java.
I also build subscription-based online platforms, APIs and integrations with other systems. The technical details are in the FAQ.
About me
Filipe Ferreira
Fullstack Software Developer
I build fast, secure websites and systems that are easy to maintain, without complicated tools just because they are fashionable. I handle everything from the database to the phone screen, and I explain decisions in plain language.
The code, documentation and access belong to your company. No hidden dependencies.
I review every delivery against the most common flaws (OWASP Top 10) and collect only the personal data needed.
No intermediaries. You always talk to the person building the project.
Your Questions Answered
Straight answers to the most common questions before we start.
Yes, 100%. All the code developed, technical documentation, configuration files and infrastructure credentials are handed over to your company once the agreed milestones are completed. There are no hidden proprietary dependencies and no vendor lock-in.
I usually work in two formats: 1) A fixed price per project with clear delivery milestones (e.g. 50% at the start and 50% after final approval in a test environment); or 2) A monthly retainer / dedicated weekly sprints for continuous evolution and proactive maintenance of online platforms.
Yes. I can collaborate directly in your repository (GitHub, GitLab, Bitbucket), join technical planning meetings, review pull requests and help architect complex features your current team doesn't have the capacity to take on right now.
Every project is quoted individually, after a short conversation about what you need. You receive a fixed, written quote with the scope, the timeline and what is included before any work starts. If the scope changes along the way, I let you know and send a new quote before going ahead.
Most websites and first versions of platforms are ready in 2 to 6 weeks. The timeline starts once the scope is agreed and the content has been delivered (text, images, logo and any access needed). Delays in content or changes to the scope change the timeline, and I always let you know first. Along the way I make partial deliveries to a test environment, so you can follow real progress.
Yes, 30 days after launch. The warranty covers free fixes of errors in what was delivered, measured against the approved acceptance criteria. It does not cover new features, changes of scope, problems caused by changes made by third parties, or hosting and external service costs. After that, I offer monthly maintenance if you want ongoing support.
As a matter of principle, I do not disclose the clients I work with or their projects, out of respect for the privacy and identity of each business. That is why projects are shown without names and the images are concept illustrations. I only mention a project by name with the client's permission.
In every project I apply these measures: a review against the OWASP Top 10 vulnerabilities, validation of every input, authentication with secure HttpOnly cookies, connections that are always encrypted (HTTPS) and collection of only the personal data that is needed, in line with the GDPR.
Day to day, TypeScript, React, Node.js and PostgreSQL. I also work with PHP, Java, Python, Astro, Next.js, MySQL, Docker and Cloudflare. On platforms used by several companies, I keep each customer's data separate, set up roles and permissions (RBAC), enable two-step authentication (MFA) and integrate payments with Stripe, Multibanco and MB WAY.
I also work on existing systems, including PHP and Java. I start with a diagnosis to find the cause of the problem and send an estimate before any intervention. Then I fix, test and hand over a summary of what changed. Urgent incidents get priority, and I can continue with monthly maintenance if it makes sense.
Get in Touch
Fill in the fields below with the context of your need, or email me directly at filipeferreira.dev@gmail.com. I reply within 24 working hours.