Professional Software Engineering Services
Delivering B2C and B2B software solutions globally as a freelance software engineer

Services
Specialized software engineering services tailored to your business needs
Custom Software Development
Bespoke software solutions designed to address your specific business challenges.
- Web applications
- Mobile applications
- API development
- Internal tooling
Technical Consulting
Expert advice on technology stack, architecture, and best practices.
- System architecture
- Technology selection
- Code reviews
- Performance optimization
Maintenance & Support
Ongoing maintenance and support for your software systems.
- Bug fixing
- Feature enhancements
- Security updates
- Performance monitoring
Service Rates
Transparent pricing for professional software engineering services
Hourly Services
Best for short-term tasks and consulting
- Technical consultations
- Debugging sessions
- Code reviews
- Performance optimizations
- Formal invoice provided
Weekly Engagement
Ideal for focused project development (10% discount applied)
- Full-time dedication (40 hours)
- Regular progress updates
- Feature implementation
- System architecture design
- Formal invoice with VAT/IVA
Project-Based
For complete software solutions
- Full project scoping
- Detailed project proposal
- Milestone-based payments
- Complete documentation
- Official contracts and invoices

About Me
I'm a seasoned software engineer with expertise in building robust, scalable, and straightforward software solutions. I thrive in addressing user problems.
My Approach
I believe in creating clean, maintainable code that solves real business problems. My focus is on delivering value through straight to the point software design and implementation.
Digital Nomad
As a digital nomad, I provide services to businesses throughout the world. I can work in most timezones and can deliver requirements on time.
Experience & Skills
Over a decade of experience in software development
Web Technologies
- React, Next.js
- Node.js, Go
- TypeScript, JavaScript
- HTML5, CSS3, Tailwind
Backend & Infrastructure
- Python, Go, Node.js
- SQL, NoSQL databases
- Docker
- AWS and Azure
Project Management
- Agile methodologies
- SCRUM, Kanban
- CI/CD pipelines
- Technical documentation
Academic Writing
Selected academic publications and research papers
An Artificial Neural Network Solution to the Point Reactor Kinetics Equations with One Precursor Group
International Youth Nuclear Congress 2020
A Comparative Analysis of Numerical Solutions for Solving Stellar Structure Equations
17th Philippine Computing Science Congress
Marcos' Fatal Conceit: The Economic Fatality That Led to His Downfall
13th Annual Austrian Student Scholar's Conference
General Writing
Articles, blog posts, and technical content
A Bit Beyond Gradient Descent: Mini-Batch, Momentum, and Some Dude Named Yuri Nesterov
Published on Towards Data Science • Dec 2017
Linear Regression Using Gradient Descent in 10 Lines of Code
Published on Towards Data Science • September 2017
Request a Quote
Need a software solution? Describe your project to receive a custom quote.
Contact Information
jsphbtst@proton.me
+34 627 210 908
Barcelona, Spain