Senior Performance Engineer - Remote work | REF#300133

BairesDev; Brasil; Remote; BRL 657,000 - 986,000; Full time

Benefits offered by this job

100% remote work

USD or local currency compensation

Hardware and software setup for home

Flexible hours

Parental leaves, vacations, and public

holidays

Job summary

BairesDev is seeking a Senior Performance Engineer to optimize low-level systems and ensure our infrastructure operates at peak efficiency. You will bridge hardware capabilities and software execution, tuning the Linux kernel and subsystems for massive-scale operations.

Join a global, 100% remote team and drive performance across CPU, memory, and I/O, using tools like perf, Nsight, and VTune. Collaboration with engineering teams and continuous deployment validation are key parts of the role.

Qualifications

• 4+ years of experience in Performance Engineering, Systems Engineering, or low-level Linux development.
• Proven expertise in Linux kernel tuning and kernel internals (I/O and memory).
• Proficiency in C/C++ and eBPF-based observability.

Responsibilities

• Analyze CPU, memory, and I/O subsystems to root out latency.
• Design and run performance characterization plans for high-traffic systems.
• Develop custom observability tools using eBPF for real-time monitoring.
• Tune kernel parameters and scheduling to improve utilization and throughput.
• Provide architectural recommendations from profiling data.
• Automate performance regression validation in deployments.

Skills

Performance engineering

Systems engineering

Linux development

C/C++ programming

eBPF observability

CPU profiling

English proficiency

Tools

perf

Nsight

VTune

Job description

At BairesDev®, we've been leading the way in technology projects for over 15 years. We deliver cutting-edge solutions to giants like Google and the most innovative startups in Silicon Valley.

Our diverse 4,000+ team, composed of the world's Top 1% of tech talent, works remotely on roles that drive significant impact worldwide.

When you apply for this position, you're taking the first step in a process that goes beyond the ordinary. We aim to align your passions and skills with our vacancies, setting you on a path to exceptional career development and success.

Senior Performance Engineer at BairesDev

As a Senior Performance Engineer, you will lead the efforts to optimize low-level systems and ensure our infrastructure operates at peak efficiency. You will act as the vital link between hardware capabilities and software execution, fine-tuning the Linux kernel and subsystems to support massive-scale operations.

What You'll Do

• Conduct deep-dive analysis of CPU, memory, and I/O subsystems to identify and eliminate root causes of latency.
• Design and execute comprehensive performance characterization plans for high-traffic distributed systems.
• Develop custom observability tools using eBPF to monitor system health and performance in real-time.
• Optimize kernel parameters and process scheduling to maximize hardware utilization and throughput.
• Collaborate with engineering teams to provide architectural recommendations based on detailed profiling data.
• Automate the validation of performance regressions within the deployment pipeline to ensure consistent system reliability.

What We Are Looking For

• 4+ years of experience in Performance Engineering, Systems Engineering, or low-level Linux development.
• Proven expertise in Linux kernel tuning and deep understanding of kernel internals, including I/O subsystems and memory management.
• Proficiency in systems programming with C/C++ and working with eBPF for observability and performance monitoring.
• Hands-on experience with CPU profiling and analysis tools such as perf, Nsight, or VTune.
• Strong background in identifying and resolving performance bottlenecks at scale across CPU, memory, and I/O resources.
• Advanced proficiency in English.

How we do make your work (and your life) easier:

• 100% remote work (from anywhere).
• Excellent compensation in USD or your local currency if preferred
• Hardware and software setup for you to work from home.
• Flexible hours: create your own schedule.
• Paid parental leaves, vacations, and national holidays.
• Innovative and multicultural work environment: collaborate and learn from the global Top 1% of talent.
• Supportive environment with mentorship, promotions, skill development, and diverse growth opportunities.

Join a global team where your unique talents can truly thrive and make a significant impact!