Lead Backend Developer (Go)

Location: Lisbon, Portugal Joom Group is an international tech-centric group of e-commerce companies founded in 2016 in Latvia. We are here to transform the largest industry in the world, global trade, making it more transparent, efficient, and technology-driven. Today, Joom Group brings together the following businesses: Joom, a global cross-border marketplace; JoomPro, the first and only end-to-end cross-border B2B marketplace; JoomPulse, an AI analytics tool for Mercado Livre sellers; and Onfy, a pharmaceutical marketplace in Germany. Joom Group’s offices are located in China, Brazil, Portugal, Latvia, and Germany, with headquarters in Lisbon, Portugal. We work as one international team, sharing knowledge and collaborating across countries, businesses, and products. We are currently looking for Lead Backend Developers to join the Joom Marketplace Solutions . Joom Marketplace Solutions is a platform that allows Joom to go beyond its own marketplace and offer its solutions to other players in the market. Through technical integration, we give our partners access to millions of products from our sellers and take care of the entire order fulfillment process end to end. Tech stack: Go, MongoDB, Kubernetes, Elasticsearch, AWS, Redis, Jenkins.Frontend: Node.js, React, TypeScript, Rush Responsibilities Come up with architecture Program in Go (Go is not a must for us; it is more important for a successful candidate to have solid algorithm skills, fundamental technical knowledge, and great coding skills in general) Provide fault tolerance for coded services in an AWS environment Be prepared for a constant increase of processed and stored data loads and volumes Participate in new feature and product development discussions Managing and mentoring a backend team of 3–6 developers Requirements Experience in leading and developing a backend team by recruiting, hiring, and training new team members Confident knowledge of any of the programming languages: Go/Java/Kotlin/C++/Python/Scala Complex project development experience Excellent algorithmic training Experience in development for Linux / Unix Preferred Experience with highload Experience with MongoDB Experience with Kubernetes We offer Compensation package: base salary and performance-based bonuses Office-first: flexible hours with a possibility to work remotely 52 days per year Care & Wellbeing: health insurance (including dental care) for employees and their children, daily meal allowance, and 100% paid sick leave Relocation Support: full assistance for a smooth relocation for the employees and their family AI-first approach: licenses and access to a wide range of AI tools Team & Growth: collaboration with colleagues across Portugal, Brazil, Latvia and China, with opportunities for promotions, professional trainings, and English & Portuguese courses Community & Engagement: annual team building activities, knowledge-sharing workshops, and a strong sense of team work Before applying for the above position please review our Candidate Privacy Notice here . By responding to the vacancy, you acknowledge that you have read our Privacy notice.