Senior Backend Engineer

• Design and scale async REST/WebSocket APIs in Python (FastAPI or similar), using dependency injection, type hints, and clean, vertical-slice architecture

• Implement multi-agent workflows (sequential, concurrent, and handoff patterns) to route work among specialized LLM agents

• Integrate multiple LLM providers behind a provider-agnostic layer, enabling A/B testing and cost-aware routing rather than hard-coding a single vendor

• Build and maintain Retrieval-Augmented Generation (RAG) pipelines against vector stores such as pgvector, Chroma, or a managed vector search service

• Design schemas and evolve data models (SQLAlchemy/SQLModel-style ORM plus migrations) that support both traditional application logic and AI-driven features

• Instrument services with structured logs, distributed tracing, and cost/latency metrics, holding a real bar for p95 response time under production load

• Maintain end-to-end CI/CD ownership, lint, type-check, test, package, and deploy, so releases are boring and safe

• Champion AI across the delivery lifecycle, not just code generation, and set the guardrails the team works inside: how generated code gets reviewed, how provenance and licensing are checked, and what customer data may enter a prompt

• Move ideas from concept to production fast, with real ownership over architecture and outcomes, not just tickets

Who You Are & What You'll Need to Succeed

• 5+ years building production backend systems in Python, with real async I/O experience

• Hands-on experience designing and scaling REST or async APIs, including dependency injection and clean service architecture

• Practical experience integrating LLM APIs (OpenAI, Gemini, or similar) and building AI-readiness into backend systems from the ground up

• Real experience with vector databases and RAG-style retrieval architectures, not just reading about them

• Strong relational database skills: schema design, query optimization, and migration discipline

• AI-augmented delivery: you use AI across the delivery lifecycle, not just code generation, and can say which models suit which problems and where you don't use them. You review AI-generated code knowing its failure modes, and you have set the guardrails others work inside — review expectations for generated code, provenance and licensing checks, and clear boundaries for what customer data enters a prompt and what a security or compliance review will ask for.

• End-to-end CI/CD ownership, from build and test through packaging and deployment

• A self-starting, go-getter mindset: comfortable with ambiguity, fast iteration, and owning a problem until it's actually solved

• Bonus: experience with multi-agent orchestration frameworks (Semantic Kernel, LangChain, or similar) and LLM cost/observability tooling

Why You'll Love Us

• Work-life balance. Meaningful work, balanced by a culture that respects your time.
• A culture of belonging. We celebrate what makes each of us different, with 20+ affinity groups connecting employees globally.
• We care about you.We offer a Meal Voucher or Food Voucher worth R$44.55 per working day. Comprehensive health and dental insurance, with no employee co-pay.
• Well-being program including Gympass, online meditation, and telemedicine.
• Do you have a dog, cat, rabbit, hamster, goat, turtle, or even a mini dragon? We offer access to a pet health insurance partnership.
• Educational platform: pursue undergraduate and graduate degrees, language courses, and much more through 100+ educational institutions at highly affordable rates.
• Life insurance coverage.
• Free website hosting.
• Where can we take you? Mentorship, new challenges, and real career growth. Unfold new possibilities #OTOD!

#LI-PM2 #Bluehost #LI-Remote