01
Backend Development
Robust APIs, microservices, complex integrations and business logic that scales without breaking under load.
Software · Architecture · Cloud for scale-ups
We ship fast.
We build to scale.
A senior development and architecture team for scale-ups that need to grow without breaking what already works. From estimate to production, with the same people.
- First call is free
- Reply within 24 h
- Senior people only
Teams that already trusted us
- LinkVest Capital
- Viventa
- Legalítica
- TLA Services
- Codster
- Farmaenvíos
- G2Consultorex
- Stackcode
6+ Years of experience in software & architecture
30+ Projects delivered from MVPs to full platforms
6 Senior engineers no middlemen, no juniors
<24h Response time to every new inquiry
Why Sintaxyz
Your product grew. Your technology has to catch up.
We don't just code — we think through the problem, design the solution and execute it with precision.
Deliveries slip sprint after sprint
Speed without improvisation
Senior teams with defined processes. Predictable deliveries from the first sprint, no surprises mid-project.
The platform can't keep up with growth
Architecture that scales
Every technical decision is made with your next business state in mind. Nothing you have to throw away in six months.
No technical judgment to make the call
Partner, not vendor
We integrate into your context. We understand the business before writing code and we stay when the product grows.
What we do
Services
From initial consulting to production-ready architecture.
02
Frontend Development
Interfaces that bring the product to life with quality, real load performance and solid user experience.
03
Cloud Architecture
Cloud infrastructure that adapts to business growth without runaway costs or invisible technical debt.
04
Feasibility Consulting
Is it viable? What does it really cost? What stack makes sense? Technical and strategic analysis before you invest.
05
Project Estimation
Activity breakdown, timelines, costs and resources — so you can budget with certainty before signing a contract.
06
Process Optimization
Development flow diagnosis. We identify bottlenecks, technical debt and what is slowing your team down.
Case studies
Real problems, solved
Some of the projects we have worked on. No made-up names, no vanity metrics.
Fintech LinkVest Capital
Internal platform for process management
Result
A single source of truth for internal operations, with better traceability and fewer manual tasks.
- Django
- React
- AWS
Legaltech Legalítica
Technology strategy and engineering leadership
Result
Technology aligned with the business and an engineering team with clear direction to sustain growth.
- Python
- Vue.js
- AWS
Industry G2Consultorex
Plant access control and weighing synced to the ERP
Result
Weighing data synced in real time with the scale and automatically transferred to the ERP.
- Django
- React
- PostgreSQL
Lab
Products we build
Our own prototypes, live and working: open them and try them.
Demo Travel · Booking
Tripxyz
Group tours from Mexico City with a chosen seat
In development Events · Nightlife
WhereIsTheParty?
Where to dance tonight, without asking in every WhatsApp group
Pilot HR · Industry
TimeMark
Attendance tracking with photo, geofence and face recognition
Demo Real estate
Punta Poniente
Beachfront lot sales with a 3D masterplan and 360° tour
Methodology
How we work
- 01
Understand
We listen to the problem, the context and the goals before proposing any solution.
- 02
Design
We define the architecture, stack and delivery plan with technical and business insight.
- 03
Build
We develop in short sprints with continuous communication. No black boxes.
- 04
Scale
We accompany product growth over time. Support, improvements and evolution.
What clients say
Clients who trust us
Sintaxyz delivered our platform in record time, with an architecture that let us scale 10x without touching the foundation. They are the technical team every founder wants.
Francisco's team's technical clarity makes all the difference. They always know what's happening and why. Never a negative surprise in production.
The feasibility consulting we did before launching saved us months of work going in the wrong direction. That alone was worth the entire investment.
FAQ
Frequently asked questions
How does the onboarding process work?
We start with a 30-minute call to understand the context and the challenge. Then we send a proposal with scope, work plan and cost. If there is an agreement, we define the necessary access and get started within a few days.
Do you work with internal teams or just standalone projects?
Both. We can be the complete technical team for a project, or integrate as an extension of the client's internal team. In both cases, communication is direct.
What happens if the project scope changes?
That's a normal part of any product. We document the changes, evaluate the impact on time and cost, and discuss it with the client before continuing. No surprises.
How long does it take for a project to start?
Typically between 3 and 7 business days from signing the agreement. Depending on urgency and complexity we can accelerate that timeline.
Do you offer post-delivery support and maintenance?
Yes. We have post-launch support and follow-up plans. We can cover bugs, improvements and product evolution based on client needs.
Do you work with clients outside Latin America?
Yes. We have experience working with clients in the United States, Spain and other countries. We adapt to time zones and handle communication in Spanish and English.
Do you have a technical challenge to solve?
Book a free 30-minute call, no strings attached. Francisco replies within 24 hours.
Schedule a call →or email us at hola@sintaxyz.com