New Jersey, USA (open to Remote)•Open to backend & full‑stack roles

Senior Backend / Full‑Stack Engineer (Node.js • PHP • Angular • React • AWS)

I build secure, high‑throughput platforms with a strong focus on payments, scalability, and clean architecture. Over 9 years delivering production systems across fintech and SaaS, from APIs and microservices to modern web UIs.

LinkedInGitHubGitHub
Fintech / POSNode.js + TypeScriptPHP LaravelReact / Angular / VueSecurity mindset
Key highlights
Years of experience
9+
Backend + full‑stack
Core domains
Fintech, POS, SaaS
Security + compliance mindset
Strengths
Architecture + delivery
Hands‑on builder
What you can expect
Clear ownership and delivery
Pragmatic architecture decisions
Secure-by-default implementation
Strong collaboration and communication
Profile

About

Who I am

I'm a senior backend and full-stack software engineer with over 9 years of experience building secure, scalable systems and product-driven web applications. My strongest domain is fintech—particularly payment systems, POS platforms, and transaction workflows where correctness, security, and reliability are non-negotiable.

I work primarily as a backend engineer, designing APIs, services, and data models that support real-world operational needs. I’m hands-on and comfortable owning features end-to-end, from backend architecture and integrations to performance tuning, observability, and the frontend layers needed to deliver complete products.

Backend-first full‑stackPayments & POSMicroservicesSecurityPerformance
Role targets
Senior Backend Engineer
Node.js/TypeScript or PHP/Laravel; APIs, data, reliability.
Senior Full‑Stack Engineer
Backend-heavy, with React/Angular/Vue for product UI.
Fintech / Payments
Transaction accuracy and reliability, integrations, security, and scale.
Toolbox

Skills

Backend
Node.js (NestJS, Express)TypeScriptPHP (Laravel)REST APIsMicroservicesAuthentication & securityCI/CD pipelines
Data
MySQLPostgreSQLSQL modelingEvent scheduling / recurrenceRedisMongoDBPerformance tuning
Frontend
AngularReactVueResponsive UIDesign systems
Platform
DockerNginxApacheAWS
What I optimize for
Correctness under load
I design data flows and APIs to be resilient, measurable, and predictable.
Security-first defaults
Authentication, authorization, and sensitive data handling treated as core design constraints.
Maintainability
Conventions, modular boundaries, and pragmatic documentation to keep teams moving.
Quick links
LinkedInGitHubGitHub
Additional experience

Technologies I've used hands-on to implement specific features or support existing systems.

Java / Spring BootPython / Flask / DjangoGraphQLISO-8583EMV / Payment standards
Track record

Experience

Senior Backend / Full-Stack Engineer (Fintech / POS)
Startapps — Kipu
Lima, Peru / Remote•Recent focus
  • Built and owned end-to-end development of the Kipu POS platform supporting sales operations, tipping flows, and device integrations.
  • Designed and implemented a microservices-oriented architecture focused on scalability, security, and high performance for transaction workflows.
  • Delivered payment-capture flows (EMV card payments, QR payments), including tipping logic and device pairing across merchant operations.
  • Implemented and maintained CI/CD pipelines to automate builds, testing, and deployments, improving release reliability and reducing manual production risk.
Node.jsTypeScriptPaymentsMicroservicesCI/CD
CTO / Senior Full-Stack Engineer (Hands-on)
Startapps
Lima, Peru•Apr 2018 – Present
  • Led hands-on development across backend, frontend, and Android for multiple products, ensuring security, quality, and predictable delivery.
  • Established engineering practices (Scrum cadence, peer code reviews, Git workflow) to improve consistency and maintainability.
  • Partnered with DevOps to design and roll out deployment pipelines across development, QA, and production environments.
  • Owned architecture decisions, data modeling, and secure API design for scalable systems across different industries.
ArchitectureSecure APIsLeadershipDeliveryDevOps collaboration
Proof

Featured Project

Kipu POS Platform

A fintech/POS platform with transaction management, dashboards, and payment network integrations. Designed for reliability, security, and scalability.

FintechPOSSecurityScale
Next step

Contact

Let’s connect
Backend / Full‑stackFintech / PaymentsNode.js / Laravel

I’m currently exploring senior backend and backend‑heavy full‑stack roles. If you’re hiring for systems that require strong correctness, security, and throughput, I can help.

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