FerNix

Custom software development

Your idea deserves to become real.

We design and build high-performance web apps and custom systems that solve hard problems for startups and bold founders. Clean architecture, maintainable code, continuous delivery.

From idea to launchNo early tech debtAgile delivery

01 // Engineering approach

Great ideas need the right technology.

Misaligned shortcuts or the wrong stack condemn projects to costly rewrites and technical paralysis. We design for today with tomorrow in mind.

Whiteboarding session
System schema discovery
“Model before coding:” Decoupled relational architecture and validated interface contracts.

A real tech foundation

Modern typed stack and decoupled architectures for frictionless speed and stability.

Processes that evolve

We model business logic to adapt with you. Modular flows at market speed.

Ready to grow

From your first users to thousands, with no bottlenecks or full rebuilds.

Building fast doesn't mean building badly.

Starting with the right technical solution saves months of iteration and wasted capital.

Ask an engineer

02 // Capabilities

Technology built around your business.

Tools and products with industrial discipline, ready for demanding operations.

Flagship

Custom web apps

Full SPAs and PWAs with React, Next.js and TypeScript. Intuitive UIs with modular architecture.

Next.jsTypeScriptTailwind CSSReact Server Components
Applied AI

Applied AI

RAG modules like Ask AI over your docs: sourced answers embedded in your site or operations.

RAGLLMsEmbeddings
Fast Validation

MVPs & digital products

A working first version to validate with real users, built to mature-product standards.

4–8 Week SprintCore FeaturesZero Technical Debt
WordPress sites

WordPress

Custom WordPress sites and stores: bespoke themes, blocks, WooCommerce and maintainable, reviewable practices.

Custom themesWooCommerceWP-CLI

03 // Demo cases

Ideas taking shape.

Demo cases built to illustrate our solution architecture. No inflated metrics, no fictional logos.

DemoProduct & ContentCase #01

AboutMe Platform

Editorial system on Next.js and Payload turning track record, projects and evidence into portfolio, timeline and AI-ready knowledge.

Architecture
Headless CMS
Content
AI-ready
Next.jsPayload CMSTypeScriptMongoDB
DemoOwn productCase #02

HoyPromete

Product turning local discovery into a system: mobile-first design and modular cloud architecture.

Architecture
Mobile-first
Cloud
Modular
Next.jsFirebasePub/SubAWS SES
DemoWordPress & ToolingCase #03

WordPress Tooling

In-house WordPress delivery system: setup, themes and maintenance as reusable, reviewable practices.

Architecture
WordPress delivery
Quality
PHPCS
WordPressPHPComposerWP-CLI

04 // Working method

From first call to working product.

A predictable, rigorous process that removes technical and timeline uncertainty.

Discovery

Business model, technical scope, users and deliberate architecture.

Week 1 · Technical blueprint

Design & planning

Wireframes, data schema, API contracts and transparent sprints.

Week 2 · Prototype & schemas

Build & iterate

Clean tested code, continuous deploys and weekly demos.

Weeks 3–7 · Active sprints

Launch & evolve

Secure cloud, monitoring, repo handover and future support.

Week 8+ · Live production
Engineering craftsmanship

Documentary record // Workspace

Rigorous logic and maintainable code.

We design every relational schema by hand before writing the first line of production code.

05 // Our edge

Good software starts with good decisions.

Transparent engineering focused on your technical ROI, with no shortcuts.

01 / Truly custom

Zero prefab templates

No recycled marketplace templates. Every line answers your operational flow and constraints.

02 / Technical purpose

Battle-tested technologies

Tools with community backing and proven reliability. Nothing experimental on your project.

03 / Direct visibility

Direct communication with engineers

No account-manager layers or technical misunderstandings. You always talk to the people building your software.

04 / Longevity & ownership

Your code, ordered and documented

100% IP ownership. Clean documented repos any future team can extend without redoing.

Your system, in 4 clear layers

Each layer does one job and can change without breaking the rest.

Presentation

Clear, fast screens · React and Next.js

SSR

Services & APIs

Tidy connections to your systems and third parties · OpenAPI

REST

Business logic

Your rules, isolated and covered by tests

Tested

Data & infrastructure

Secure, backed-up, always-on information

ACID
Cloud infrastructureAWS · Cloudflare · Vercel

06 // Total clarity

Frequently asked questions

Straight answers on how we structure, quote and deliver every engagement.

Everything is designed around your business model. To speed up an MVP we use audited headless libraries, always with full control of the source.

Yes. We narrow features to the core that validates your value prop with real users, on extensible architecture.

By scope, architectural complexity and sprint time. Transparent fixed-price or dedicated-team proposals, no hidden costs.

An MVP or ops system takes 4–10 weeks from discovery to production. Complex platforms ship in biweekly milestones.

Only clarity about the problem or idea. We guide discovery into specs, user flows and formal architecture.

fernix // engineering-intake-session

07 // Let's start

Your idea's next step starts here.

Tell us your vision or operational challenge. We'll assess feasibility with an honest plan.

Direct email

[email protected]

Direct lines & WhatsApp

+506 7109 9453+506 7110 4874

First technical reply within 24 business hours.

No forced commitments. We talk directly about your architecture.

Status: secure form ingestion ready24H turnaround protocol