Senior Staff / Principal Engineer - Digital Ecosystem

Core responsibilities

• Support defining the division’s technical end-state (2–3 years): architecture, shard/partition strategy, migration path (one-stack) and explicit trade-offs (cost × latency × availability).
• Co-own availability and performance: set SLIs/SLOs, error budgets, runbooks, incident playbooks and an observability strategy that supports merchants with strict SLAs.
• Support Ads & Rewards platform design: advertiser platform (audience & campaign management), decision/bidding service, real-time vs batch decisioning, measurement & attribution (ROAS/incrementality), and minimise impact on app UX.
• Drive NuPay ↔ Ads integration for aspirational purchases: real-time underwriting, multi-source funding, take-rate modelling, card-on-file / wallet flows and onboarding for flagship merchants.
• Enable Insurance delivery: technical enablement for one-click products, partner integration and governance (e.g., Chubb), migration to subscription/billing platform where applicable, and app quality improvements (TTFD, dashboards, NPS).
• Support one-stack discovery and phased migration: balance platformization with pragmatic delivery and tech-debt management to avoid blocking growth.
• Catalyse product quality culture: introduce and operationalize Product Quality Reviews, drive app excellence rituals, and ensure UX/technical quality are considered across the product lifecycle.
• Mentor and grow engineering leaders and staff engineers; run RFCs, tech talks and post-mortems; design career paths and enable managers to deliver cross-BU initiatives.
• Represent the division in cross-org negotiations and external partner discussions (merchants, partners, regulators), aligning stakeholders and escalating risks proactively.
• Track and report technical impact against business metrics and engineering health indicators.

Key business & engineering metrics you will influence

• NuPay: TPV growth (2× by Dec/26), wallet MAU (>3M), share-of-checkout (SoC), p99 latency and availability for merchant traffic.
• Ads & Rewards: ad revenue targets (material ecosystem revenue), ROAS / iROAS / incrementality, CTR, Ads POC results (≥2 merchants), Advantages Tab / Shelves Platform launch.
• Insurance: one-click complements GWP target (R$493M EOY), product NPS (>60 targets), churn reduction via billing/tolerance changes.
• Engineering health: Engineering Stability Index (ESI), App Quality Score, incident frequency/severity, time to integrate new partners.

Challenges and opportunities (what you’ll own)

• World-class app quality & Magic App MVP: raise engineering and product expectations, and deliver first-layer Magic App experiences (Advantages Tab, widgets, contextual flows such as AIPB).
• Real-time decisioning and aspirational financing: enable low-latency ads decisioning and NuPay real-time underwriting for extended financing while preserving app performance.
• One-click Insurance at scale: deliver MIR (no IMEI) and Pix Protegido evolution, dedicating energy to one-click complements and partnering with Chubb while retaining monitoring/control.
• Capture offline transactions: accelerate NuPay NFC wallet adoption as an offensive play to reach ~3M MAU and increase offline SoC.
• Platform & compliance foundations: complete SPB integration, advance One-Stack Project, meet Magic App and regulatory mandates, and ensure resilient, cost-effective infra.