Software Engineer, Full-stack JavaScript
UpstreamGerakas Municipal Unit, Attica, Greece • Athens, Attica, Greece
Posted August 25, 2025
Full Time
About the Company
We are a leader in mobile technology, providing innovative solutions to 1.2 billion consumers. In an ever-increasing digital world we help businesses grow their digital reach & toolkits to optimize user experience, increase engagement, attract new customers and boost their revenues. Think of performance marketing but on steroids as our top-notch marketeers and engineers build digital journeys through an omnichannel marketing approach like no other. Currently we work with the biggest names in Telco, Insurance, Education, FMCGs and Retail in over 45 countries in Latin America, Africa, the Middle East and South-East Asia.
Job Description
Upstream is seeking a highly motivated Software Engineer to join their team in Athens, Greece. This role involves developing and delivering mission-critical applications in a hybrid work mode, utilizing modern JavaScript technologies and a CI/CD pipeline. The team focuses on platform performance and scalability, supporting a large, global client base across multiple industries.
Requirements
- Computer Science, Engineering, or equivalent degree
- 2+ years of full-time professional Full Stack/Web Development experience
- Hands-on experience with JavaScript, Typescript
- Hands-on experience with React, Next.js, and Express
- Experience with HTML, CSS, and responsive design
- Experience with designing and consuming HTTP APIs
- SQL and NoSQL databases and caches
- Messaging systems such as Kafka
- CI/CD tools and processes
- Strong team player with good communication skills
- Eager to work with leading-edge technologies
- Analytical thinker with attention to detail
- Reliable and dedicated professional with clear thinking and strong attention to detail
- Able to multitask and thrive in a dynamic environment
- Able to balance and prioritize activities
Benefits
- Competitive salary and benefits
- Opportunity to work with a dynamic, smart, agile team
