KADER GÓMEZPRODUCT BUILDER · SOFTWARE ENGINEER

I turn
complex
problems into
clear digital
products.

I work across product, architecture, and development to turn loosely defined needs into usable, maintainable systems that are ready to evolve.

TypeScript · React · React Native · Node.js · Product strategy

View projects
Conceptual illustration of the path from a problem to a product in production
Conceptual illustration of web, mobile, backend, APIs, data, and infrastructure

Experience

10+ years

Responsibility

Product and technical direction

Environments

SaaS, internal tools, and mobile products

Delivery

From definition to production

01 / selected work

Featured projects

Production products where I have led product definition, architecture, technical direction, and development—from initial scope through ongoing evolution.

Quick Pay Services: composition showing analytics, invoice creation, and sample transactions.

01 / FINTECH SAAS / 2024–PRESENT

Quick Pay Services

A multitenant invoicing and payments platform that evolved from an internal tool into a SaaS product with an API for integrating external products and businesses.

Product & Technical Lead · Team of 4–5 people

Problem

General-purpose financial tools did not fit the company’s actual workflow, client base, internal roles, or full invoicing and collections cycle.

Key decision

Design a multitenant platform to unify invoicing, users, permissions, clients, and payments, then expose those capabilities through APIs, payment links, and webhooks.

Outcome

A production product that manages internal financial operations and lets external platforms such as TuTike process payments through Quick Pay Services.

$3.2M+ProcessedOver the last 12 months for the Cute Digital Media tenant
123ClientsManaged by the primary tenant
4Active businessesOperating on the platform
View case study
TuTike: platform composition showing events, seat selection, reservations, and administration.

02 / EVENTS AND RESERVATIONS / 2024–PRESENT

TuTike

A SaaS platform for events, ticket sales, and business reservations, covering event publishing, payments, operations, validation, and administration.

Product & Technical Lead · Team of 4–5 people

Problem

Unify very different needs in one ecosystem: ticket sales, restaurant reservations, seat selection, payments, availability, promoters, referrals, and third-party integrations.

Key decision

Build a modular architecture with shared capabilities for events and reservations while keeping their business flows separate and supporting payments, Google Booking, WordPress, and administrative tooling.

Outcome

A production platform capable of operating events of varying complexity and handling end-to-end reservations for restaurants and other businesses.

$137KProcessedThrough Quick Pay Services from March to July 2026
100+EventsOperated entirely on the platform
11Active businessesUsing Google Booking End-to-End
View case study
PRONYR TV: multiplatform composition showing catalog, community, shorts, and notifications.

03 / STREAMING AND PAYMENTS / 2022–2024

PRONYR TV

An original-content streaming platform where I progressed from web and mobile development to leading critical payment services and new product lines.

Product Engineer → Technical Lead · Three-person team across the modules I led

Problem

Payments were embedded in PRONYR’s monolithic backend, making it difficult to add processors, maintain differentiated rules, and evolve subscription and purchase flows.

Key decision

Extract payments into a NestJS and TypeORM microservice that gave the rest of PRONYR a consistent interface regardless of which processor it used internally.

Outcome

A stable payment service that remains in production and supports the platform’s primary purchase and subscription flows.

2022–2024Active involvementFrom pre-production through the first stage of growth
3 peopleTeam I ledAcross payments and new initiatives
In productionStable microserviceFor products, payments, and subscriptions
View case study

02 / process

How I work

I do not build isolated features; I consider impact, architecture, and maintenance to create products that can last.

01

Understand before building

I question initial requirements. Uncovering the real business problem is cheaper than perfectly coding the wrong solution.

02

Design for evolution

I prioritize proven, understandable architectures that fit the product’s current stage. I separate business logic from the UI framework so the product can outlive technology trends.

03

Close the loop

Development does not end at deployment. I instrument the product, measure real usage, and prepare the system for iterations driven by data instead of assumptions.

03 / judgment

Decisions that matter

A product’s value is not only in its code, but in the decisions that determine what to build, how to build it, and what to leave out.

Scope definition

Cut features aggressively to validate hypotheses quickly without compromising the integrity of the codebase.

Where business logic belongs

Decide what belongs in the backend, what the frontend should own, and when third-party services make sense based on the cost of maintenance.

Speed vs. technical debt

Take deliberate shortcuts, document the debt, and plan to pay it down before it blocks product iteration.

04 / scope

Capabilities

Product strategy

  • 01Reducing uncertainty in early-stage ideas.
  • 02User flows and experience design.
  • 03Roadmap prioritization for MVPs.

Architecture and development

  • 01Designing maintainable systems ready to evolve.
  • 02Full-stack development (TypeScript, React, Node).
  • 03Integrating services (payments, AI, authentication).

Execution and leadership

  • 01Technical leadership for small teams.
  • 02CI/CD and deployment setup.
  • 03Auditing legacy codebases.

05 / independent initiatives

Independent work

Products and initiatives I have built outside my main work to solve my own problems, learn new technologies, and explore different business models.

Personal projects
CromoCollector interface showing identification, management, and price lookup for collectible cards.
MVP IN VALIDATIONNEXT HYPOTHESIS · MOBILE EXPERIENCE

01PERSONAL PRODUCT / MVP

CromoCollector

An application for scanning, identifying, and organizing collectible cards, checking market prices, and finding comparable listings, both active and sold.

It began as a tool for managing my own collection and evolved into an MVP with real users, product analytics, and a future mobile experience.

Areas / technologiesNext.js · TypeScript · PostgreSQL · Computer Vision · Capacitor

OutcomeA functional MVP tested with an initial user community.

View project
Alavante website and examples of digital assets created for editorial marketing.
ACTIVE · SELECTED PROJECTS

02INDEPENDENT INITIATIVE / ACTIVE

Alavante

An independent editorial marketing initiative focused on helping authors present, position, and market their books more effectively on Amazon.

It combines category and keyword research, Amazon SEO, A+ Content, listing optimization, author pages, and digital asset creation.

Areas / technologiesAmazon SEO · KDP · A+ Content · Landing pages

Visit Alavante
Historical MC-U Tool interface for technical operations on mobile devices.
ARCHIVED · SUBSCRIPTION PRODUCT

03FOUNDATIONAL PRODUCT / ARCHIVED

MC-U Tool

A subscription desktop tool for technicians specializing in mobile device repair and maintenance.

I built it before working full time as a programmer. The project led me to study reverse engineering, Android device communication, AT commands, boot modes, and the automation of technical processes.

Areas / technologiesC# · Android internals · Device communication · Reverse engineering

The product that turned a need in my repair shop into the start of my career as a software developer.

Portrait of Kader Gómez
Based inSpain
LanguagesSpanish / English

06 / context

About me

I work at the intersection of product strategy, software architecture, and technical execution.

I have spent the last decade building software, leading small technical teams, and making architectural decisions that balance delivery speed with long-term maintainability.

When I am not designing software architectures or coding, you will probably find me suffering—or celebrating—with Real Madrid or spending time with my family.

07 / next conversation

Do you have a complex product that needs technical clarity?

Contact meLinkedInGitHub