Senior JavaScript Engineer, Full-stack, Retention

🕒 Setembro 17

🇵🇹 Portugal – Remoto

⏰ Tempo Integral

🟠 Sênior

🧑‍💻 Engenheiro Full-stack

👻 Score fantasma 10%

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🗣️🇺🇸🇬🇧 Inglês obrigatório

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Logo of Relay Commerce

Relay Commerce

11 - 50 funcionários

Fundada em 2021

📣 Marketing

💼 Consultoria

📦 Logística

💰 $20.000.000 Debt Financing em 2022-04

Marketing • Consulting • Logistics

Relay Commerce é uma plataforma de e-commerce que oferece uma suíte completa de ferramentas projetadas para ajudar lojistas online a expandir seus negócios. Com soluções focadas em construir confiança por meio de prova social, ampliar listas de assinantes e aumentar as taxas de conversão, a Relay Commerce capacita os lojistas a fortalecer sua presença online e suas vendas. Suas ofertas incluem conteúdo gerado por usuários (UGC), e-mail marketing e SMS marketing, além de ferramentas de analytics que se integram perfeitamente a plataformas de e-commerce populares como Shopify.

Descrição

• Design and evolve TypeScript services powering personalized replenishment, cross-sell, and subscription offers for Shopify stores • Work as part of an AI-native, multidisciplinary product engineering team to deliver modern software across high-volume subscription and billing systems • Design and deliver serverless TypeScript services on AWS Lambda, backed by MySQL and Prisma ORM • Contribute to React applications relying on company APIs and integrating with Shopify and Klaviyo • Own features end-to-end, from shaping customer problems and proposing architecture through implementation, monitoring, and production operation • Support Customer Success through a working-hours escalation schedule and maintain the live production system • Participate in architectural discussions and technical decision-making across Relo and Relay Commerce • Add agent context to codebases, run coding agents, build MCPs, and develop AI product features for LLM integrations such as Shopify Sidekick • Improve processes, guidelines, and documentation in a fully remote organization

🎯 Requisitos

• Significant, proven, senior-level experience with JavaScript across multiple frameworks; minimum of 8 years across multiple companies • Extensive experience designing REST APIs, especially for systems integrating with third-party platforms • Deep expertise crafting TypeScript using class-oriented design, strong typing, SOLID principles, OOP patterns, and test-driven development • Strong SQL and relational database knowledge, including query performance, indexing strategies, and schema design in MySQL or another RDBMS • Clear proficiency with React, including components, interactive UI, application state, and backend API integration • Experience with cloud-native services in Amazon Web Services • Experience owning features from idea to delivery • Experience defining and shipping major features as part of a team • Ability to use AI agents such as Claude Code or Codex and explain skills, MCPs, RAG, and other AI tooling • Excellent written and verbal communication skills • Customer focus • Highly desirable: Experience with predictive algorithms • Highly desirable: Experience with Shopify platform, structures, and data • Highly desirable: Experience with SRE practices and observability tools such as DataDog

🏖️ Benefícios

• Flexible Time Off • Public Holidays Off • Paid Parental Leave • Work From Home Stipend • Therapy/Mental Health Reimbursement • Co-working Space Allowance • Company Swag

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