André Ribeiro

Staff Software Engineer

André (Dk) Ribeiro

18+ years · Scalable systems · Technical leadership

What I optimize for

I build backend systems that stay correct under load and survive failure.

I also scale engineering orgs through SDLC standards, technical roadmaps, and ownership-driven execution.

Observability is the mix that keeps every service in sync.

0
active users supported in production
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uptime on critical backend systems
1 → 0
engineers scaled across teams

Reliable systems, observability-first engineering, and measurable SDLC standards.

Work

Highlights
Expand a role to preview key outcomes.
Conduit Senior Software Engineer 2025-10 — Present · USA, Remote Core backend modernization, observability, and early technical standards at a US fintech.
  • Refactored and modernized core backend services with a focus on data integrity and service communication.
  • Established Datadog dashboards, alerting, and logging standards across critical applications.
  • Collaborated with stakeholders on technical standards and documentation to support future scale.
  • ~45% improvement in system stability and data integrity within the first six months
  • Observability standards reducing MTTD/MTTR for production issues
  • AWS
  • Kubernetes
  • Node.js
  • NestJS
  • PostgreSQL
  • NATS
  • Datadog
Kanastra Senior Staff Engineer 2025-04 — 2025-10 · Uberlândia, Brazil (Remote) Banking-as-a-Service; architected core lending platform and durable financial workflows.
  • Architected the firm’s core lending platform from the ground up for a new credit vertical.
  • Pioneered Temporal.io for durable workflows—full auditability for long-running financial flows.
  • Introduced formal SDLC, Jira metrics, and performance benchmarks in Definition of Done.
  • ~90% reduction in manual transaction recovery via Temporal.io adoption
  • 60% reduction in average time-to-hire after new technical hiring process
  • First formal SDLC with structured backlog and velocity metrics
  • GCP
  • Kubernetes
  • Node.js
  • NestJS
  • PostgreSQL
  • MongoDB
  • Kafka
  • Redis
  • Temporal.io
  • Datadog

Featured project

Lending Platform

Apr 2025 – Present

Designed a modular lending platform to support multiple credit instruments with long-term extensibility.

Enabled new instrument onboarding without core platform refactors

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PicPay Staff Software Engineer 2022-05 — 2025-04 · São Paulo, Brazil (Remote) Led benefits fintech products and scaled backend orgs for 20M+ users.
  • Architected Flexible Benefits Credit Card, Payroll, Salary Advance, and Corporate Credit Card.
  • Defined architectural roadmaps; mentored Senior/Staff engineers; Backend Chapters across 50+ engineers.
  • Corporate Credit Card delivery integrating legacy systems with PostgreSQL, Redis, Kafka, Kubernetes.
  • 20M+ active users on critical products
  • 99.99% uptime and <100ms responses under peak load
  • Scaled backend teams from 1 to 50+ engineers
  • Benefícios product from zero to launch in 3 months (JBS); team 1→40+
  • AWS
  • Kubernetes
  • Terraform
  • Node.js
  • Java
  • NestJS
  • PostgreSQL
  • MongoDB
  • Redis
  • Kafka

Featured project

PicPay Corporate Credit Card

Apr 2024 – Present

Led delivery of a corporate credit card product integrating legacy flows with modern cloud services.

Delivered on a tight timeline with cross-functional and third-party coordination

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DreamLabs Tech Lead / Staff Engineer 2015-07 — 2022-05 · Ouro Preto, Brazil Fractional CTO–style leadership for dozens of cloud and mobile products for startups.
  • End-to-end technical leadership for cloud software and mobile apps across many client startups.
  • Rateio Digital: Led monolith-to-microservices refactor (Kafka, independent deploys); architecture became Gringo’s core engine post-acquisition.
  • Led teams on healthcare scheduling (Iubem), events/ticketing (Quero Festival), crypto exchange (Murexchange), edtech (Miletus), and more.
  • Rateio Digital / Gringo — GMV grew 36× ($500K → $18M annually); Strangler Fig microservices migration
  • AWS
  • Kubernetes
  • Terraform
  • Node.js
  • NestJS
  • Angular
  • React
  • PostgreSQL
  • Kafka

Featured project

Rateio Digital / Gringo

Jul 2021 – May 2022

Led backend modernization from monolith to specialized microservices for vehicle debt consultation and payments.

Grew GMV from $500K to $18M annually

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Alokium Founder & Lead Developer 2016-06 — 2021-12 · Ouro Preto, Brazil Bootstrapped smart-home startup—proprietary hardware, firmware, cloud, and mobile.
  • Built full-stack smart home product: PCBs, firmware (C++), AWS backend, Flutter apps.
  • Owned product strategy, GTM, and lean delivery as bootstrapped founder.
  • AWS
  • Terraform
  • C++
  • Node.js
  • NestJS
  • Flutter
  • MySQL
  • Redis
Matiplus Back-End Developer 2012-01 — 2015-05 · Mariana, Brazil Payment processing APIs—credit card and boleto—in a financial services context.
  • Developed and optimized payment processing APIs for card and boleto transactions.
  • Worked toward compliance and reliability standards for financial integrations.
  • PHP
  • CodeIgniter
  • MySQL
MTV Brasil Fullstack Developer 2011-05 — 2013-09 · São Paulo, Brazil High-traffic portals and Blogstop—partner blog platform at massive scale.
  • Built and maintained high-traffic web properties and editorial-aligned technical solutions.
  • Blogstop: conception, development, and server administration for partner blogs.
  • Blogstop — up to 10M monthly visits
  • PHP
  • WordPress
  • MySQL
Doutor Informática Junior Software Developer 2008-05 — 2011-04 · Mariana, Brazil POS and financial management software for SMBs—first professional engineering role.
  • Developed and maintained point-of-sale and financial management systems.
  • End-to-end work from requirements through deployment for client-specific features.
  • PHP
  • SQL
  • Linux

Contact

Staff / Principal IC engineering — remote-friendly. For opportunities and collaboration, email is best.

dk@dkribeiro.com LinkedIn GitHub Résumé PDF