Staff Performance Engineer

Summary

Join CookUnity's Marketplace Zone team as a Staff Performance Engineer and drive performance improvements across our platform. You will optimize how chefs showcase their culinary creations and how we handle monetary transactions, from pricing and payments to refunds and promotions. This role involves working on the Server-Driven UI (SDUI) service within our Backend-for-Frontend (BFF) architecture, as well as developing and maintaining backend services and databases. Collaborate with cross-functional teams, including product managers, mobile/web engineers, and designers. Make a significant impact by identifying and resolving performance bottlenecks, ensuring a seamless and efficient experience for chefs and customers. This position is exclusively for candidates based in Latin America. The role offers opportunities for professional growth and development within a dynamic and innovative company.

Requirements

• 8+ years of experience in frontend and backend development, with expertise in Kotlin or Node, React, Next.js, and SQL databases
• Proven experience in architecting and scaling complex backend systems in a high-growth, fast-paced environment
• Strong knowledge of distributed systems, service-oriented architecture, and event-driven architecture
• Deep understanding of system performance and scalability best practices
• Experience developing and maintaining front-end applications with React, Next.js, and GraphQL
• Proven ability to translate complex, ambiguous requirements into clear, actionable plans that drive alignment and timely delivery
• Advanced English communication skills, with the ability to clearly articulate complex ideas to both technical and non-technical audiences
• Demonstrated experience in mentoring and guiding engineers

Responsibilities

• Independently identify, diagnose, and resolve complex performance issues across the full stack
• Design and implement scalable and high-performance solutions for critical systems, including chef marketing infrastructure, payment gateways, and order processing
• Establish robust performance monitoring, alerting, and reporting mechanisms. Analyze performance data to uncover trends, predict future bottlenecks, and proactively recommend improvements
• Conduct in-depth code reviews, providing expert guidance on performance best practices, efficient algorithms, and optimal data structures to engineering teams
• Collaborate with engineering and product teams on capacity planning and load testing to ensure the platform can handle increasing traffic and transaction volumes
• Collaborate cross-functionally with Product, Finance, and BizOps teams to translate business requirements into robust engineering solutions
• Act as a subject matter expert in performance engineering, mentoring junior engineers and fostering a culture of performance awareness and excellence across the organization
• Evaluate and introduce new technologies, frameworks, AI adoptions that improve our technical stack and development velocity

Preferred Qualifications

• Knowledge of AWS, Kubernetes, Terraform, and cloud infrastructure
• Familiarity with observability tools like DataDog and logging frameworks
• Proficiency with leveraging AI Coding tools in day to day development (Cursor, Windsurf, or similar)
• Experience working in eCommerce, marketplace, or fintech environments
• Experience with pricing algorithms, promotions engines, or dynamic pricing models

Benefits

• Get paid in USD
• Work remotely: design the life that you want
• Enjoy 15 business days of vacation each year from the start date
• Healthcare Benefit: Monthly stipend to use in your preferred healthcare provider
• 16 fully paid Argentinean holidays
• Compassionate Leave: 3-5 days each time the need arises
• Fully paid family leave
• Personalized English coach
• Customize the benefits that suit your needs! Access a range of perks tailored to you, including learning opportunities, wellness memberships, delivery apps, and more through our comprehensive benefit platform
• 5- year Sabbatical: After 5 years with CookUnity, you get a 4-week paid sabbatical