Senior Full Stack Engineer, Personalization
CookUnityArgentina (Remote)Posted 26 March 2026
Tech Stack
Job Description
About CookUnity:
Food has lost its soul to modern convenience. And with it, 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:
The Personalization Squad owns our web app's tactical and strategic tech direction focusing on recommendations for our customers, based on Machine Learning models. This will also include UI personalization and autopilot processes.
It’s a high-impact role with the ability to influence all parts of CookUnity. Our customers use our digital experience weekly to find their favorite meals from our 300+ item menu, and the Personalization Squad is responsible for making that easy and delightful.
The role:
As a Senior Full Stack Engineer, you will play a pivotal role in our Personalization Squad, directly reporting to the Engineer Manager.
Collaborating closely with a Product Manager and a designer, you'll be contributing to the shape of the product strategy, define OKRs, and chart the roadmap. Your responsibilities will extend to maintaining regular communication with senior management and providing updates on status, risk assessment, and the broader product strategy.
This position offers an opportunity to drive meaningful impact within our team and organization, contributing your expertise to guide our product's growth and success.
This is our current stack:
Languages: Kotlin, Javascript, Typescript, Python
Frameworks: ReactJS, Redux, Apollo GraphQL, NestJS, NextJS
Infrastructure: AWS, Kubernetes, Terraform, MySQL, PostgreSQL, Snowflake, Redis, DataDog, Segment
Agile Methodology
Service Oriented Architecture
Responsibilities:
Owning the design and implementation of features within our Javascript stack that engage customers and have a meaningful impact on people’s lives.
Iterating on new and existing features to improve user experience and performance.
Actively contribute to the adoption of strong software architecture, development of best practices, and new technologies.
Improving the maturity of our technical stack with engineering best practices.
Being part of the code review process and helping to mentor other engineers.
Contribute technically to projects by being a hands-on coder, removing roadblocks, and repairing technical issues.
Partner with members of Product, Growth, Marketing, Customer Experience and other teams to continually refine and improve our product in an agile process.
Helping to have higher levels of uptime supporting the on-call rotation that will help the business run 24/7.
Qualifications:
You have at least +5yrs of experience as a Software Engineer, and you can engage with projects in ReactJS, NodeJS, GraphQL, MySQL, and Typescript.
You have experience designing and building cloud architecture, backends, middle ends, web apps, basically the whole combo!
Experience implementing and maintaining unit tests and e2e tests.
Strong knowledge of service-oriented architectures.
You understand how to interact with and build backend REST APIs.
Familiarity with continuous integration.
Advanced level of English
Fluency with AI engineering tools.
Preferred requirements:
Experience with Machine Learning.
You're proficient in relational database management.
Experience working with Docker/Kubernetes/CI environments.
You enjoy working in small teams in a fast-paced startup environment.
Previous experience leading or mentoring teams is highly valued.
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