About Custom Stack
We build the technical layer your business needs to scale with security and agility.
Our Manifesto
Custom Stack was born to connect innovation and efficiency through robust and personalized technological solutions.
The integration between cloud, processing and data demonstrates our ability to manage every layer of your infrastructure.
"We don't just deliver code; we deliver ecosystems in infinite evolution."
Alcides Mendes
Founder & CTO
Academic Background
- ✔ Post-Graduate in Software Engineering
- ✔ Bachelor in Systems Analysis (ADS)
- ✔ Bachelor in IT Management (GTI)
International Certifications
-
Google Cloud
Associate | Professional | Security -
AWS
AWS Certified
Solutions Architect Associate -
ITIL
ITIL® Foundation v4
IT Service Management -
SCRUM
PSPO I
Professional Scrum Product Owner -
ISO
ISO/IEC 27001
Information Security and Governance
Compliance & Fiscal
- ✔ LGPD, GDPR & CCPA
Privacy and data protection (BR, EU and USA) - ✔ IFRS & US GAAP
Global accounting standards (Europe and USA) - ✔ FinOps Certified
Financial management and Cloud efficiency
Extra-Curricular
CS50: Harvard
via edX
Project Management
TargetTrust
Business Intelligence
TargetTrust
Our Essence
CustomStack was officially founded in 2018, but its story begins much earlier. It is the result of years of hands-on experience, continuous study, and professional expertise in developing digital solutions that bridge software engineering, project management, and business strategy.
At the helm of CustomStack is Alcides Mendes, a professional with a solid background in technology and a postgraduate degree in Software Engineering. This multidisciplinary expertise, combined with extensive market experience, ensures a comprehensive vision across the entire system development lifecycle — from conception to delivery and continuous evolution.
At CustomStack, every project is directly overseen by the founder's technical supervision, ensuring high quality standards, architectural consistency, and an absolute focus on delivering real business results.
"At CustomStack, we transform complex ideas into concrete results. Technology must be the greatest ally of your sustainable growth."
We work with method, responsibility, and technical rigor — where best development practices and security are not optional, but inherent requirements.
Each solution is designed to support growth, reduce risk, and generate concrete value.
CustomStack exists to transform technology into strategy — with consistency, transparency, and technical excellence.
Hard Skills & Expertise
Purpose and Values
Mission
Develop personalized ecosystems that simplify complex processes and ensure continuous innovation.
Vision
To be the reference in software architecture, recognized for combining intuitive design with technical robustness.
Values
Total integration, data flow agility, technical transparency and sustainable innovation.

Custom
Represents customization: Tailor-made solutions, with the seriousness and trust your business demands.
Stack
Represents our mastery of full-stack development. We master the entire tech stack...
Our Ecosystem Symbols
Each visual element was designed to represent a layer of our delivery.

Infinity
The central element that connects all others. It symbolizes continuity...

Cloud
Scalable infrastructure and global deploy so your application never stops.

UI / UX
Modern and intuitive interfaces focused on the end-user experience.

Database
Data management and security, ensuring information integrity.

Engineering
Processing power and high-performance programming logic.