Backend Specialist – High-Performance, Data-Intensive Systems

This is a fully remote position, open to applicants in Brazil.

📋 Description

• Design and enhance high-performance, scalable, and resilient backend services.

• Spearhead intricate technical projects, overseeing everything from architecture to production deployment.

• Construct pipelines for the ingestion, processing, and delivery of substantial data volumes (batch, streaming, parallelism).

• Detect and resolve performance and resource-consumption issues (CPU, memory, I/O, cost).

• Modernize the architecture by updating legacy systems, breaking down monoliths, and creating distributed services.

• Develop robust messaging systems and integrations featuring retries, idempotency, circuit breakers, and dead-letter queues (DLQs).

• Ensure quality assurance through testing, code reviews, and observability practices.

• Lead critical incident responses and perform root cause analyses.

• Integrate AI as a fundamental aspect of development (AI First) while maintaining quality and security standards.

• Act as a technical resource and mentor for team members.

⛳️ Requirements

• Advanced expertise in Node.js and TypeScript (event loop, asynchronous programming, memory, performance).

• Advanced proficiency in NestJS and/or Express.

• Experience with distributed systems, microservices, and managing high volumes of data and requests.

• Advanced skills in MongoDB and/or PostgreSQL, including data modeling, indexing, and query optimization.

• Familiarity with messaging systems (Kafka, RabbitMQ, SQS) and caching technologies (Redis).

• Practical experience with profiling, load testing, and observability (metrics, logs, and tracing, preferably OpenTelemetry).

• Knowledge of Docker and cloud platforms (AWS and/or GCP).

• Advanced utilization of AI tools in everyday development tasks.

• Understanding of the trade-offs between performance, cost, and complexity, alongside strong communication and decision-influencing skills.

• Experience with multi-tenant architectures.

• Familiarity with SRE practices (SLIs, SLOs, and error budgets).

• Experience with observability using OpenTelemetry and Dash0.

• Proficiency in English.

🏝️ Benefits

• Life Insurance.

• Language Allowance.

• Pet Life and Dog Life benefits.

• English Pass.

• Wellhub (Gympass).