Top Tech Jobs & Startup Jobs in Rio de Janeiro

Build and operate a high-velocity CRO program: own the experiment lifecycle, run 12+ tests monthly, improve conversion and contribution margin, design offer and funnel architecture, integrate learnings with paid media, creative, design, and analytics, and document scalable playbooks and rollouts.

Manage the Jira support queue, ensure SLAs, triage and troubleshoot production issues, run simple DB queries, develop and maintain Python import/export scripts, perform root-cause analysis, and present findings to stakeholders.

Design, build, and support high-volume, low-latency payment processing systems for capital markets. Develop microservices, REST APIs, and event-driven integrations (Kafka/IBM MQ/JMS). Implement end-to-end payment workflows, reconciliation, exception handling, and production support while collaborating with operations and business stakeholders to deliver enhancements and modernization initiatives.

Lead and manage multiple Valorx Wave customer implementations from onboarding through UAT and go-live. Coordinate cross-functional teams, run customer touchpoints, track milestones, identify risks, and ensure customers adopt Wave features. Act as trusted customer contact and escalate feedback to internal Product and Support teams.

Own and patch Chromium/Firefox C++ source to build an in-house stealth browser. Fix fingerprinting at the engine level (navigator, WebGL, canvas, fonts, Client Hints), eliminate CDP leaks, maintain per-OS fingerprint profiles, continuously rebase patches, build validation tooling, and debug detection issues to keep automation indistinguishable from real users.

The Senior Cloud Platform System Engineer will maintain infrastructure reliability using IaC, automate operations, and ensure production stability across regions while participating in incident response.

Own the Listings product domain: manage 60+ platform integrations, define vision and roadmap, run technical discovery, lead agile execution, drive data‑driven decisions, use AI to improve matching and automation, and collaborate globally to deliver scalable solutions.

As a Junior Software Engineer, you will collaborate with senior engineers to design and maintain backend systems, contribute to feature development, and learn new technologies.

The Technical Support Engineer resolves complex technical issues, engages with customers, manages cases, and ensures operational continuity while contributing to knowledge improvements.

The Procurement Coordinator manages purchasing activities, vendor sourcing, and supply chain logistics, ensuring timely delivery of parts and adherence to budgets.