Software Engineer SR | AI Products

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Software Engineer SR | AI Products based in Brazil.

Join an innovative engineering team building next-generation AI-powered products that deliver real impact at scale. In this senior role, you will design, develop, and optimize distributed systems that leverage generative AI, intelligent agents, and modern cloud technologies to solve complex business challenges. You'll collaborate with multidisciplinary teams to create secure, scalable, and highly available solutions while influencing technical direction and engineering excellence. This is an exciting opportunity for an experienced software engineer who thrives in fast-paced environments, enjoys working across multiple technology stacks, and is passionate about bringing AI applications into production.

Accountabilities:: Develop, maintain, and enhance core AI platform services with a strong focus on scalability, performance, security, and observability.

Design and implement production-ready generative AI solutions, including intelligent agents, RAG pipelines, workflow orchestration, and integrations with LLMs and external tools.

Build and evolve distributed systems using Node.js, Python, and Java, including RESTful APIs, WebSockets, and streaming architectures.

Integrate microservices, legacy systems, and AI platforms while ensuring reliability, consistency, and traceability across services.

Design and optimize asynchronous, event-driven architectures using messaging technologies such as RabbitMQ and BullMQ.

Model, optimize, and maintain relational, NoSQL, and vector databases, implementing effective caching, embedding, and data consistency strategies.

Contribute to frontend enhancements in React and TypeScript when necessary to support end-to-end product delivery.

Troubleshoot and resolve complex production issues, including those related to AI models and non-deterministic system behavior.

Maintain high engineering standards through automated testing, AI evaluation frameworks, code reviews, and software development best practices.

Collaborate closely with Product, Design, QA, Data, and AI teams while actively participating in Agile ceremonies and continuous improvement initiatives.

Requirements

Extensive experience developing backend applications with Node.js, NestJS, TypeScript, Java, and Spring Boot.

Strong experience building Python services and APIs, particularly for AI-powered applications.

Hands-on expertise implementing generative AI solutions using frameworks such as LangChain, RAG architectures, AI agents, and leading LLM APIs.

Advanced knowledge of PostgreSQL, MySQL, MongoDB, Redis, and event-driven architectures.

Experience designing, developing, and versioning RESTful APIs and WebSocket-based services.

Ability to work across the technology stack, including maintaining and extending React/TypeScript applications when required.

Proficiency using AI-assisted development tools such as Cursor, Claude Code, GitHub Copilot, or similar, with the ability to critically evaluate AI-generated code.

Familiarity with Agile methodologies and experience working in multidisciplinary product teams.

Strong analytical thinking, communication skills, and the ability to perform effectively in complex, fast-changing environments.

Nice to have:

Experience with vector databases such as Pinecone and semantic search architectures.

Knowledge of observability tools, distributed tracing, structured logging, and AI quality monitoring.

Experience with AWS cloud infrastructure.

Previous experience in digital health, healthtech, or other highly regulated industries.

Benefits

Monthly CAJU flexible benefits card with R$1,059 for meals, food, mobility, health, home office, education, and culture.

Comprehensive AMIL health insurance plan, with dependent coverage available.

Monthly medication allowance through a dedicated healthcare benefit.

Free access to digital healthcare and mental wellness platforms.

Extended maternity leave (up to 6 months) and 30-day paternity leave.

Life insurance coverage.

Birthday day off.

Access to Wellhub and TotalPass wellness programs.

Educational discounts through partner institutions.

SESC membership benefits for sports, culture, and leisure activities.

Transportation allowance, when applicable.

Opportunity to work with cutting-edge AI technologies in a collaborative, innovation-driven environment.

How Jobgether works: We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team. We appreciate your interest and wish you the best!  Why Apply Through Jobgether?    Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.     #LI-CL1