Top Software Engineer Jobs in Rio de Janeiro

As a Senior Software Engineer, you will design and maintain full-stack applications using .NET and Angular, modernizing legacy systems to microservices and leveraging AI for development efficiency.

The Open Source Engineer will expand LanceDB's integration with big data systems, manage dataset operations, and enhance open-source community efforts.

Design, build, and maintain high-performance backend microservices and automation for the GTM Data Platform. Implement RESTful APIs, webhook-driven lead routing, and Salesforce integrations. Support AI-driven sales workflows, maintain platform codebase, and collaborate in Agile/Scrum using JIRA with distributed teams aligned to EST.

Lead frontend architecture for Clara Builders (Next.js 15, React, TypeScript), extend backend/infra (Prisma/Postgres, deploy pipeline), work on the Cloudflare AI Gateway and agent infrastructure (Figma-to-code MCP, documentation agents, n8n automations), design and ship new AI tooling (OAuth clients, unified access), and raise technical standards across the pod through ownership and code review.

Build and automate internal tools and services to operate Qdrant Cloud at scale. Develop platform components in Go and Python, improve Kubernetes automation, provisioning, reliability, scalability, and observability. Collaborate on architecture, participate in incident response, and reduce manual operational toil through automation.

The Software Development Engineer I will design and implement microservices, improve system performance, and mentor junior engineers. Responsibilities include coding, debugging, and developing features from design to deployment in a remote setting.

Design and implement a video processing engine, develop a cross-platform rendering engine, integrate systems, and optimize performance while collaborating with other engineers.

Serve as technical owner of product quality for AI, automation, and software solutions. Build QMS, design and automate test plans across front-end, backend, AI agents, integrations, and data pipelines. Implement automated test suites, monitoring, drift detection, and intelligent alerts. Validate agent behavior, prompt quality, and large-scale workflow reliability. Partner with engineering and engagement teams to define acceptance criteria, communicate findings, and act as final technical quality gate for client deliverables.

As a Senior Software Engineer at Connectly, you'll design, launch, and optimize AI-driven solutions for enterprise clients, collaborating across teams and mentoring others.

The Junior Software Engineer will collaborate within a team to develop software solutions in fintech, leveraging accounting knowledge to enhance automation and reconciliation.

Lead the design, architecture, and migration of Sezzle's authentication and authorization platform. Build scalable API gateway and identity services in Golang, ensure fintech-grade security and observability, drive zero-downtime migrations, participate in on-call/incident response, and mentor engineers while collaborating cross-functionally to deliver auth capabilities.

Lead the design and delivery of Sezzle's authentication and authorization platform: architect API auth gateway and identity services, drive zero-downtime migrations, enforce OAuth2/OIDC/SAML/JWT standards, ensure fintech-grade security and observability, own on-call and incident response, mentor engineers, and collaborate cross-functionally to translate business goals into a secure, high-performance auth platform.

Own end-to-end AI product development: design, build, deploy, and iterate full-stack AI-native features (agents, RAG, tool-use). Integrate models, telemetry, evals, and data; partner with product and operations to ship production-ready solutions for restaurant delivery and operations.

As a Staff Software Engineer, you will lead software architecture development, mentor engineers, ensure code quality, and drive process improvements.

Design, implement, and maintain fullstack Java applications within a Scrum team; perform code reviews; ensure high code quality and adherence to design principles (TDD, YAGNI); deploy to cloud/on-prem using containers and CI/CD; work with relational and NoSQL databases; apply GenAI knowledge where relevant.

Technical leadership role shaping full‑stack architecture and cross-team alignment. Ship production work, drive architectural decisions, reduce systemic complexity, and partner with product and cross-functional teams (manufacturing, quality, sales, supply chain). Use AI tooling strategically to accelerate design, review, and delivery.

As a Senior Software Engineer, you will architect and build scalable systems for global tax compliance, ensuring accuracy and auditability. Responsibilities include developing microservices in Golang, managing data pipelines, and leading cross-functional collaboration.

Design and implement robotic software solutions using ROS/ROS2, C++17 and Python. Work on navigation, localization, fleet management, mission planning, control, simulation, testing, and contribute to open-source projects while mentoring peers.

The Senior Software Engineer will design and optimize systems for financial reporting and automation, mentor teammates, and collaborate with cross-functional teams to develop robust software solutions, leveraging accounting experience.

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.

Design, build, and optimize high-performance AI infrastructure systems to support intelligent agents, ensuring reliability and scalability for millions of users.

As a Principal Software Engineer, you'll provide user support for software solutions, ensure quality service delivery, analyze problems, and assist users through various channels.

The role involves building AI conversational experiences for enterprise clients, collaborating with teams, and enhancing customer experience through AI solutions.

As a Senior Software Engineer, you'll enhance a learning platform using Python and React, mentor junior engineers, and collaborate across teams.

The Senior Software Engineer will design and deliver software applications, mentor team members, and work on scalable solutions using Golang and React, contributing to both internal and customer-focused projects.