Staff Performance Engineer, Marketplace at CookUnity

Jyväskylä, Central Finland, Finland -

Full Time

Start Date

Immediate

Expiry Date

28 Dec, 25

Salary

0.0

Posted On

29 Sep, 25

Experience

10 year(s) or above

Remote Job

Yes

Telecommute

Yes

Sponsor Visa

Skills

Kotlin, Node, React, Next.js, SQL Databases, Distributed Systems, Service-Oriented Architecture, Event-Driven Architecture, System Performance, Scalability Best Practices, GraphQL, AWS, Kubernetes, Terraform, Observability Tools, AI Coding Tools

Industry

Food and Beverage Manufacturing

Description

About CookUnity Food has lost its soul to modern convenience. And with it, has lost the power to nourish, inspire, and connect us. So in 2018, CookUnity was founded as the first-of-its-kind platform that connects the world with the source of truly great food: chefs. Today, CookUnity delivers 50 million meals a year from the industry’s best chefs to homes all over the country. Fresh. Ready-to-eat. And crafted with the passion that nourishes body and soul. Unwilling to stop there, CookUnity is expanding beyond delivery to become an ever-innovating marketplace focused on our singular mission: empower Chefs to nourish the world. If that mission has you hungry in more ways than one, you’ve found the right job posting. About The Team: You will be joining CookUnity’s Marketplace Zone, which focuses on creating a seamless and scalable platform connecting chefs with consumers. This team tackles high-impact projects ranging from Chef marketing to power monetary transactions within CookUnity’s eCommerce marketplace, including pricing, payments, refunds, promotions, and the order finalization process. We emphasize innovation, reliability, performance, and scalability, working closely with cross-functional teams including Product, Design, and Operations to deliver world-class experiences for chefs and customers. The Role: We're looking for a Staff Performance Engineer to join our team, a dynamic role that will see you driving performance improvements across multiple critical areas of our platform. You'll be instrumental in optimizing how chefs showcase their culinary creations and how we handle all 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. As part of a cross-functional team, you will collaborate closely with product managers, mobile/web engineers, and designers. This is a unique opportunity to make a significant impact by diving deep into our tech stack to identify and resolve performance bottlenecks, ensuring a seamless and highly efficient experience for our chefs and customers alike. Please note that only candidates based in Latin America will be considered for this role. 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. Minimum 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. Preferred Requirements: 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. 🐣 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. If you’re interested in this role, please submit your application and if we think you might be a fit, we'll get in touch with you. Thank you for your time! CookUnity is an Equal Opportunity Employer. We are dedicated to creating a community of inclusion and an environment free from discrimination or harassment. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, age, sexual orientation, gender identity, national origin, citizenship status, protected veteran status, genetic information, or physical or mental disability.

Responsibilities

Independently identify and resolve complex performance issues across the full stack while designing scalable solutions for critical systems. Collaborate with cross-functional teams to ensure the platform can handle increasing traffic and transaction volumes.