Hello! My name is William Douglas|
Full Stack developer and technology enthusiast
I'm a developer passionate about technology and innovation. Here you can learn more about me, my work, and my projects.
Get to Know Me
I'm a Software Developer, currently working as a Senior Mobile Developer at Accenture, allocated through Raftech, using .NET MAUI and C# as the main technologies.
I have over 7 years of experience developing Web, Mobile and Desktop solutions, working with technologies such as .NET, C#, Flutter, MAUI, Angular, JavaScript, among others.
I enjoy building well-structured software, solving complex problems and constantly learning new tools and technologies.
Outside of code, I'm passionate about technology, travel and languages. I currently live in Lisbon, working on international projects and taking the opportunity to discover new cultures and places around the world.
My CVTechnologies I currently work with:
Flutter
Dart
Xamarin Forms
MAUI
C#
.NET
Swift
HTML
CSS
JavaScript
TypeScript
Angular
SQL Server
SQLite
PostgreSQL
MySQL
Azure Cloud
AWS Cloud
Firebase
Power AutomateFlutterDartXamarin FormsMAUIC#.NETSwiftHTMLCSSJavaScriptTypeScriptAngularSQL ServerSQLitePostgreSQLMySQLAzure CloudAWS CloudFirebasePower AutomateLanguages
Portuguese
BR
English
USA
Spanish
ES
French
FR
Experience
A little about my journey in the world of programming
Accenture
Senior Mobile Developer
Lisbon, Portugal
Work as outsourced by Raftech at Accenture
10 months
Full-time
Responsibilities:
- ▪End-to-end development of new features for a production .NET 9 MAUI (MVVM) iPad application used by field technicians
- ▪Work-order cards, configuration-driven inspection forms, validation rules and submit/reopen flows, with Syncfusion UI, Esri ArcGIS maps and offline-first SQLite storage
- ▪Field-service platform for a US-based utility company covering plumbing, gas-leak and electrical maintenance operations
- ▪Maintenance of the differential replication model that synchronizes data between the Java 17 / Spring Boot / Oracle backend and the mobile devices
- ▪Development of server-side REST endpoints and administrative screens, including SAP work-order integration flows
- ▪Root-cause analysis of production issues across mobile code, server code and replication data, with confirmed fixes from forensic reports
- ▪Maintenance of the app's 650+ xUnit/Moq unit-test suite and validation of deliveries on the iOS Simulator
- ▪Delivery through Azure DevOps CI/CD with multi-round code reviews, collaborating with teams in Portugal and Italy and directly with the US client
Tools:
Raftech
Senior Mobile Developer
Brussels, Belgium
Work allocated at Accenture
10 months
Full-time
Responsibilities:
- ▪End-to-end development of new features for a production .NET 9 MAUI (MVVM) iPad application used by field technicians
- ▪Work-order cards, configuration-driven inspection forms, validation rules and submit/reopen flows, with Syncfusion UI, Esri ArcGIS maps and offline-first SQLite storage
- ▪Field-service platform for a US-based utility company covering plumbing, gas-leak and electrical maintenance operations
- ▪Maintenance of the differential replication model that synchronizes data between the Java 17 / Spring Boot / Oracle backend and the mobile devices
- ▪Development of server-side REST endpoints and administrative screens, including SAP work-order integration flows
- ▪Root-cause analysis of production issues across mobile code, server code and replication data, with confirmed fixes from forensic reports
- ▪Maintenance of the app's 650+ xUnit/Moq unit-test suite and validation of deliveries on the iOS Simulator
- ▪Delivery through Azure DevOps CI/CD with multi-round code reviews, collaborating with teams in Portugal and Italy and directly with the US client
Tools:
Aceve
Senior Full Stack Developer
Lisbon, Portugal
Work as outsourced by Aubay at Aceve
6 months
Full-time
Responsibilities:
- ▪Nordic quoting and price-comparison platforms (KlarCalc and Klarpris) for electrical installers in Norway, Denmark and Finland
- ▪One of two developers on KlarCalc (.NET 8, ASP.NET Core MVC, EF Core, SQL Server, DevExtreme, TypeScript), owning feature design and technical decisions
- ▪End-to-end feature delivery — services, REST endpoints, Razor/TypeScript UI, five-language resources and xUnit/Moq tests
- ▪Development of a new Calculation Summary report (PDF/XLSX/DOCX), Excel export and validated re-import of the unit/package register
- ▪Root-cause analysis and correction of production bugs, including a page-break rework rolled out to 57 quotation templates in three countries
- ▪Integration of the OnePlatform Supplier Service microservice into Klarpris behind an anti-corruption layer, with caching, fallback and Datadog telemetry
- ▪Propagation of the integration through the EDI ordering services (EDIFACT, EFO-NELFO, UBL), covered by 64 integration tests
- ▪Hardening of the GitLab CI/CD pipeline that builds per-country Windows Docker images, with staging validation and evidence reports
Tools:
Projects
Check out my portfolio with the projects that were developed
Android
iOS
Social Media Video Creator
An application created to automatically generate videos for social media platforms such as TikTok, Instagram, and YouTube Shorts. The user simply provides the video theme, and a video is generated with narration from AI-created content.
Android
iOS
Educational Control Prototype
This application was created to facilitate the exchange of information between an educational institution and its students. Students can track grades, attendance, assignments, classes, announcements, and make requests directly through the app.
Android
iOS
ZiPartner
App to find other people interested in training together. Shows nearby people with their workout preferences and gyms. If there is a MATCH, an internal chat opens to schedule a training session together.
Education
Check out my academic background and certifications
FIAP
Software Engineering
Post-graduate Lato Sensu — MBA
Specialization in Software Engineering with focus on system architecture, agile methodologies, software quality, and technological project management.
FIB — Faculdades Integradas de Bauru
Computer Science
Bachelor's in Computer Science
Solid foundation in computing fundamentals, algorithms, data structures, software development, networks, databases and artificial intelligence.
Colégio Técnico Industrial — Prof. Isaac Portal Roldán
Electronics
Technical Course
Technical training in analog and digital electronics, electronic equipment maintenance, microcontroller programming and industrial automation.
Preply
Spanish
Language Course
Online private Spanish lessons focused on conversation and grammar, aimed at developing fluency and communication skills in the language.
Preply
French
Language Course
Online private French lessons focused on conversation and grammar, aimed at developing fluency and communication skills in the language.
Times Idioma
English
Language Course
In-person English course with focus on conversation, advanced grammar and technical vocabulary for technology professionals.
EF English Live
English
Language Course
Improvement of English fluency with focus on professional communication, technical writing and conversation for international corporate environments.