Top Tech Jobs & Startup Jobs in Rio de Janeiro

As a Senior Software Engineer at Flex, you will lead back-end development for financial products, mentor engineers, and drive architecture design while focusing on scalability and data integrity.

Support budgeting, forecasting, KPI reporting and root-cause analysis; provide cross-functional financial decision support; identify and mitigate financial risks; develop BI/data models and automation tools; lead special projects, industry analysis, and finance capability-building to improve cost efficiency and execution.

Sell and drive adoption of Siemens Healthineers Digital & Automation imaging IT solutions across assigned territory. Build clinical IT workflow expertise for Radiology, Cardiology, and Pathology; develop strategic account plans and funnels; manage forecasts, quotas, and complex, multi-unit deals; collaborate with internal stakeholders to drive customer satisfaction and product adoption.

Build and maintain lifecycle marketing campaigns, automated customer journeys, audience segments, triggers, personalization, and customer data configurations across Braze and Klaviyo. Support campaign QA and deployment, troubleshoot data pipelines and integrations, develop AI-assisted workflows and internal automations, document best practices, and partner with engineering, analytics, product, and growth teams to improve lifecycle marketing scalability, reliability, experimentation, and reporting.

Own and evolve PayJoy’s global Customer Support data architecture, including Bronze/Silver/Gold layers, dimensional models, semantic layers, KPI frameworks, governance, and scalable ingestion pipelines. Design solutions using Databricks, dbt, Spark, Fivetran, APIs, and cloud storage. Provide technical guidance to engineers and analysts, document standards, mentor colleagues, and translate complex business requirements into maintainable analytics foundations. The role also supports BI, AI, and reporting use cases while collaborating with global business and technical stakeholders.

Build and maintain scalable full-stack web application features and distributed microservices. Own complex features from technical design through production deployment, improve the web application’s technical strategy, support performance and reliability, participate in on-call rotations, troubleshoot incidents, and maintain high service levels. Collaborate with product, infrastructure, design, and API teams while mentoring engineers and improving CI/CD, containerization, and observability.

Contributors record authentic first-person video of household tasks, hands-on work, and everyday activities using a phone mounted to a headstrap. They choose their own schedule, preferably recording at least 10 hours weekly, then upload footage through Perle’s app for review and payment. Contributors must be at least 18, reside in the United States, Canada, or Latin America, have a supported smartphone, and be comfortable wearing a headstrap.

Own and grow relationships with 100+ partners and current or former clients through structured outreach, signal tracking, and opportunity qualification. Pilot outbound prospecting through email, LinkedIn, and calling; build enterprise target lists, research decision makers, track metrics, schedule discovery calls, and hand qualified opportunities to the Head of Sales. Maintain accurate HubSpot and relationship database records while helping refine sales processes and messaging.

Manage top-tier ecommerce customers as a trusted advisor, supporting onboarding, contact migration, campaign and automation setup, digital marketing strategy, troubleshooting, dashboard reviews, product feedback, renewals, and quarterly business reviews. Help merchants achieve revenue goals through best practices, proactive guidance, and timely communication while documenting solutions and escalating issues appropriately.

Build and operate Kevel’s globally distributed ad-serving platform. Responsibilities include evolving ad decision pipelines, improving scalability, reliability, security, and performance, developing product features, supporting 24/7 operations, and collaborating with product management and customer success. The role requires backend programming, cloud-based distributed systems, latency-sensitive services, APIs, databases, and on-call participation. Preferred experience includes AWS or GCP, infrastructure as code, event streaming, observability, testing, and modernizing high-throughput systems.