Backend Developer (Golang)
Lisbon, Portugal.
Joom is a global cross-border marketplace where millions can find anything they want at fair prices. Joom helps consumers to make shopping easy and entertaining and provides access to interesting and unique goods from around the world.
Joom is one of the key businesses of Joom Group, an international group of tech-centric group of e-commerce companies founded in 2016 in Latvia. Joom also includes other businesses: 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 has offices in Latvia, China, Germany, and Brazil, with its headquarters in Lisbon, Portugal. We work as one international team, sharing knowledge and collaborating across countries, businesses and products.
We are currently looking for Senior/Middle+ Backend Developers to join our teams:
Client team: this team is responsible for handling all API requests coming from our mobile applications and the Joom web client. Tech stack: Go, MongoDB, Redis, Casandra, Kafka, Spark (Scala, SQL), Docker, Kubernetes, Grafana, Prometheus
JoomPro is the first and only end-to-end cross-border B2B marketplace. It serves small, medium, and large businesses, handling orders of any size from start to finish. Today, JoomPro operates in Brazil and Mexico, with plans to expand into other markets. Tech stack: Go, MongoDB, Redis, Kafka, Amazon AWS, Docker, Kubernetes, Elasticsearch
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
Requirements
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
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
Published on: 7/11/2026

Joom
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.
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