{"id":1015363,"url":"https://alion.io/job/cookunity-staff-full-stack-engineer-b2b","title":"Staff Full Stack Engineer, B2B","company":{"id":4712,"name":"CookUnity","domain":"cookunity.com","url":"https://alion.io/company/cookunity","size_band":"501-1000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":84,"open_postings":152,"ghost_share":0.178,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":131,"computed_at":"2026-10-30T05:48:23Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":null,"work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"posting_text","remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Argentina"],"countries":["AR"],"hiring_countries":["AR"],"hiring_countries_total":1,"salary":null,"salary_estimate":{"min_usd":74000,"max_usd":159000,"period":"year","method":"global_role_cell_scaled_by_country","sample_n":2415},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"AWS","optional":false},{"name":"Claude","optional":false},{"name":"Computer Vision","optional":false},{"name":"Copilot","optional":false},{"name":"JavaScript","optional":false},{"name":"MySQL","optional":false},{"name":"Nest.JS","optional":false},{"name":"OpenAI Codex","optional":false},{"name":"React.js","optional":false},{"name":"AI Agents","optional":true},{"name":"ChatGPT","optional":true},{"name":"CI/CD","optional":true},{"name":"Datadog","optional":true},{"name":"Jira","optional":true},{"name":"Kubernetes","optional":true},{"name":"LLM","optional":true},{"name":"Node JS","optional":true},{"name":"Telegram","optional":true},{"name":"TypeScript","optional":true},{"name":"WhatsApp","optional":true}],"status":"live","first_seen_at":"2026-06-25T20:54:24Z","employer_posted_date":"2026-07-22","last_verified_at":"2026-10-30T20:28:58Z","board_verified":true,"closed_at":null,"days_open":126,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":125},"description":"About CookUnity:\nFood 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.\nUnwilling 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.\nIf that mission has you hungry in more ways than one, you’ve found the right job posting.\nAbout the Team\nCookUnity B2B is one of the company's fastest-growing divisions, scaling across four verticals - Bulk, Smart Fridge, Healthcare, and Partnership - with a bold H2 2026 north star of $44M in revenue and 120% retention rate.\nOur engineering mission is equally ambitious: converge two acquired platforms into a single CookUnity codebase. B2B is the clearest example of that journey in the company - two legacy stacks, two acquired companies, converging into one. It's a high-ownership environment where engineers build at the intersection of logistics, IoT, and consumer software, with computer vision and AI-driven ordering systems already on the near-term roadmap.\nIf you thrive on hard problems, real business impact, and a small team where your work ships immediately - this is the role for you.\nThe Role\nLead the design and implementation of full-stack features across our B2B platform, working directly with product and operations leadership.\nDrive the convergence of multiple legacy stacks into the core CookUnity codebase, making key architectural decisions along the way.\nAutomate and simplify operationally complex processes - from smart fridge inventory management to healthcare meal delivery workflows.\nMaintain and scale our AWS infrastructure to support rapid vertical growth.\nMentor engineers across the team and contribute to raising the technical bar.\nBe hands-on and build products used by thousands of corporate customers from day one.\nOur Current Stack:\nLanguages: Java, JavaScript, TypeScript\nFrameworks: ReactJS, NestJS\nInfrastructure: AWS, Kubernetes, MySQL\nMethodology: Agile / Service-Oriented Architecture\nResponsibilities\nEnsure the platform is scalable, reliable, and efficient across all B2B verticals.\nIdentify and address technical debt and performance bottlenecks proactively.\nOwn the design and implementation of platform features within our JavaScript/Java stack that engage customers and drive meaningful business outcomes.\nIterate on new and existing features to improve user experience, performance, and reliability.\nActively drive the adoption of strong software architecture, engineering best practices, and emerging technologies.\nLead and participate in code reviews; mentor engineers across experience levels.\nContribute technically by being a hands-on coder, removing roadblocks, and resolving technical issues end-to-end.\nPartner with Product, Operations, CX, and other teams to continuously refine and improve our platform in an agile environment.\nSupport the on-call rotation to help the business run 24/7\nContribute to documentation, deployment processes, and continuous improvement initiatives.\nAI Usage & Engineering Excellence\nAt CookUnity B2B, AI is not a buzzword - it's part of how we build. We expect our engineers to actively integrate AI tools into their daily workflow to move faster and build better.\nExpected (day-to-day):\nUse AI-powered coding tools (GitHub Copilot, Claude / Codex) to accelerate development, code reviews, and debugging.\nApply AI to automate repetitive engineering tasks - test generation, boilerplate, documentation, and internal tooling.\nLeverage AI assistants to explore architectural trade-offs, prototype quickly, and improve code quality.\nStay current on AI tooling best practices and share learnings with the team.\nNice to have (leadership signal):\nExperience building AI-powered product features (e.g., smart recommendations, automated ordering, anomaly detection).\nAbility to evaluate and introduce new AI tools or frameworks to the team, establishing best practices and adoption playbooks.\nPrior work integrating LLM-based workflows, automation pipelines, or agentic tooling into production systems.\nMinimum Requirements\nProven experience designing and building cloud-native architectures: backend services, APIs, and full-stack web applications.\nStrong proficiency with NodeJS / NestJS, ReactJS, AWS, and MySQL (or equivalent relational databases).\nExperience with Java in a production environment.\nSolid understanding of distributed systems, service-oriented architecture, and API design.\nExperience with automated testing and CI/CD pipelines.\nAdvanced English proficiency (written and spoken) - we're a distributed, international team.\nPreferred Requirements\nPrevious experience leading or mentoring engineers in a fast-moving product team.\nExcited by the opportunity to grow into a broader technical leadership role as the division scales.\nExperience with agile development methodologies and tools such as Jira.\nStrong communication and collaboration skills - able to work effectively across product, design, and operations.\nComfortable working in a startup environment where priorities shift and ownership is broad.\nExperience with observability tools (e.g., Datadog), infrastructure-as-code, or platform migrations.\nFamiliarity with IoT, hardware integrations, or computer vision systems is a strong plus given our Smart Fridge roadmap.\nBenefits:\nGet paid in USD.\nWork remotely: design the life that you want.\nEnjoy 15 days of vacation each year from the start date.\n16 fully paid Argentinean holidays.\nHealthcare Benefit: Monthly stipend to use in your preferred healthcare provider.\n5- year Sabbatical: After 5 years with CookUnity, you get a 4-week paid sabbatical.\nPaid family leave.\nCompassionate Leave: 3-5 days each time the need arises.\nFlexible benefits, your way: a prepaid card you can use on wellness, learning, food, and more.\nAI-forward workplace: enterprise access to ChatGPT and Claude to help you work smarter and grow faster.\nPersonalized English coach.\nIf 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!\nCookUnity 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.\n A quick note for all candidates\nWe’ve recently seen an increase in recruitment scams across the industry, and we want to make sure you (and your data) stay safe while applying to CookUnity. We also want you to know that we take this seriously - sometimes, as part of our process, we may ask for a brief “proof of humanity” to confirm that we’re connecting with a real person, not an impersonator. Here are a few tips to help you protect yourself and know what to expect from us:\nApply only through our official channels. All open roles are listed on our official careers page: careers.cookunity.com\nOur recruiters are real people - and easy to verify. You can always find them on LinkedIn with verified profiles. If you’re unsure, feel free to reach out to us on our official LinkedIn Company Page.\n We only communicate through official CookUnity channels. That means emails ending in @cookunity.com and interviews held through official company platforms (Google Meet or Zoom) - never WhatsApp, Telegram, or SMS.\nWe’ll never ask for payment or personal financial details. If anyone does, please don’t share any information and let us know right away.\nIf something ever feels off or you’re unsure about a message, we’d much rather you double-check with us. You can always contact us directly through any of our social media channels. 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