About this role.
This Senior Golang Engineer role involves developing high-performance backend services with event-driven architectures and Kafka. The position requires 5+ years of Go experience, distributed systems knowledge, and proficiency with AI-assisted development tools. You will design resilient microservices, APIs, and event pipelines while collaborating with cross-functional teams. The role is remote for candidates based in Brazil, operating under a B2B contract model.
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Cover letter sample
I am writing to express my strong interest in the Senior Golang Engineer position. With over 5 years of advanced Golang experience and deep expertise in Kafka and event-driven architectures, I am confident in my ability to contribute to your team's success.
My background includes designing high-performance microservices, implementing resilient distributed systems, and leveraging AI-powered tools like GitHub Copilot to enhance productivity and code quality. I have extensive experience with cloud platforms, CI/CD pipelines, and automated testing.
I am particularly excited about the opportunity to work with a highly technical team and contribute to AI-driven engineering practices. My ability to collaborate across DevOps, Data Engineering, and AI teams ensures seamless integration and delivery.
As a Brazil-based professional, I am fully prepared for the B2B model and remote collaboration. I look forward to discussing how my skills align with your needs.
Sample interview questions
In my previous role, I designed a Kafka-based event pipeline for real-time analytics. One challenge was ensuring balanced partition consumption with varying message loads. I implemented custom partitioners and adjusted consumer group configurations to optimize throughput and avoid lag.
I would use Go's context package to set deadlines and propagate cancellation. The service would implement a buffered channel with a configurable size, and when the channel is full, incoming requests would be rejected with a 503 status. Additionally, I would use circuit breakers and retry with exponential backoff.
I regularly use GitHub Copilot for code suggestions and test generation. It speeds up boilerplate code and helps discover idiomatic patterns. For debugging, I use ChatGPT to analyze error logs and propose fixes. Overall, these tools reduce development time by about 20% while maintaining quality.
I would use Avro schemas with Schema Registry to enforce compatibility. For backward-compatible changes, I add new fields with defaults. For breaking changes, I create a new topic and migrate consumers gradually. I also use envelope patterns with version metadata to handle multiple versions simultaneously.
First, I would use pprof to profile CPU and memory usage, and identify hot paths. Then, I would analyze goroutine traces for blocking calls. Common fixes include optimizing database queries, adding caching, reducing lock contention, and tuning garbage collection. I also use benchmarking to validate improvements.
We are seeking a Senior Golang Engineer with strong expertise in event-driven architectures, distributed systems, and modern AI-assisted software engineering practices. The ideal candidate has deep hands-on experience with Apache Kafka, high-performance backend engineering, and the ability to design resilient microservices at scale, while leveraging modern AI-powered development tools to improve productivity, code quality, and engineering efficiency.
You will join a highly technical engineering team working with modern practices such as microservices, observability, CI/CD, clean architecture, cloud-native development, and AI-assisted coding workflows.
Responsibilities
- Develop, maintain, and optimize high-performance backend services in Go (Golang).
- Build and improve event pipelines and messaging systems using Kafka (producers, consumers, partitions, consumer groups).
- Design APIs (REST/gRPC) and integrations across multiple backend microservices.
- Implement unit, integration, and performance tests.
- Collaborate closely with DevOps, Data Engineering, QA, and AI-focused teams.
- Contribute to architectural decisions regarding schemas, event versioning, idempotency, streaming patterns, and backpressure handling.
- Leverage AI-assisted development tools (e.g., GitHub Copilot, Cursor, ChatGPT, Claude, or similar) to improve development productivity, debugging, testing, documentation, and code quality.
- Contribute to the adoption of AI-driven engineering practices and developer productivity initiatives across the software development lifecycle.
- Design backend services and integrations capable of supporting AI/LLM-powered systems, intelligent automation workflows, and scalable data processing solutions.
- Evaluate and implement emerging AI engineering tools and frameworks to improve software delivery efficiency and engineering standards.
Requirements
- Advanced proficiency in Golang (5+ years), with deep understanding of concurrency, memory management, profiling, benchmarking, and idiomatic Go patterns.
- Expert-level hands-on experience with Kafka.
- Solid foundation in distributed systems principles: consistency, replication, fault tolerance, event-driven architecture, resiliency patterns, and backpressure handling.
- Strong experience with microservices at scale, API design (REST/gRPC), and service-to-service communication.
- Proficiency with Docker, CI/CD workflows, and automated testing (unit, integration, load).
- Experience deploying and operating systems in modern cloud platforms (AWS/GCP/Azure), including monitoring, alerting, and autoscaling.
- Practical experience using AI-powered development tools and modern AI-assisted engineering workflows in professional environments.
- Strong understanding of software engineering fundamentals while effectively leveraging AI-enhanced development practices.
- Experience integrating APIs, automation workflows, or AI-powered services into distributed architectures is considered a plus.
- Strong communication skills and proficiency in English.
- All candidates must be based in Brazil
- Open to work in a B2B model
Annual salary information is not provided for this position. Explore salary ranges for similar roles in our Salary Directory ›
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