Backend Software Engineer - Golang or Java
1GLOBALSão Paulo, Brazil • Lisbon, Portugal • Berlin, Germany • Netherlands
Posted October 22, 2025
Full Time
About the Company
WE’RE ON A MISSION TO CONNECT THE WORLD SEAMLESSLY That’s why we aim to enable more connections than anyone else and why we’ve been pioneering the eSIM revolution from the very beginning. From international enterprises and consumers to IOT device makers and Telecommunications operators, our global network and connectivity solutions enable people, devices and networks to connect anywhere, instantly, with one platform to connect billions. Headquartered in the UK and with offices across four continents, we’ve invested over £550 million in building our unique proposition and becoming one of the world’s leading innovators in eSIM, cloud and digital solutions. As a result, we’ve become a leading technology company and eSIM trailblazer that’s trusted by thousands of international businesses across hundreds of countries, including global brands, powerhouse network providers and leading banks and financial institutions. One truly global network. One global supplier. One complete solution that revolutionises the world of connectivity and connects people, devices and networks seamlessly all around the world. Because we believe that the better the world communicates, the better the world.
Job Description
1GLOBAL is a technology-driven global mobile communications provider focused on empowering enterprises with a best-in-class telecom technology platform and a rapidly growing mobile connectivity market. They are seeking a Backend Software Engineer to join their team, focusing on network API, xSIM management system, and recording platforms. This role involves developing and maintaining critical systems and services to enable connectivity and compliance for a large customer base.
Requirements
- 3+ years of professional experience in backend development
- Strong understanding of concurrency models
- Skilled in designing, building, and consuming RESTful APIs
- Experience with relational and non-relational databases (PostgreSQL, Redis, MongoDB, DynamoDB)
- Experienced in writing unit tests, integration tests, and benchmarks
- Comfortable with networking protocols (gRPC, WebSockets, TCP/UDP)
- Experience with DevOps tools and practices
- Familiarity with Git workflows
- Strong communication skills in English
Benefits
- CLT
- Quarterly performance bonuses
- Meal allowance
- Health insurance
- Daycare allowance
- Welcome onboarding trip