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Senior Web Developer - Team Lead Job in Greece
Upstream , Greece

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1 Year
0 - 0
Job Type
Job Shift
Job Category
Requires Traveling
Career Level
As mentioned in job details
Total Vacancies
1 Job
Posted on
Feb 27, 2021
Last Date
May 27, 2021

Job Description

Upstream, the leading mobile technology company, provides innovative solutions that offer seamless and secure mobile Internet access to 1.2 billion consumers in high growth markets. Upstream’s Zero-D service provides free access to the internet essentials to 250 million users in Latin America and Africa even when they have run out of data. Its award-winning security platform, Secure-D, in 2019 alone, processed over 1.7 billion mobile transactions, detecting and blocking over 98,000 malicious apps in 20 countries. Upstream’s all-in-one digital marketing platform, One-D, simplifies the digital user acquisition journey by managing the entire recruitment process, including partners and digital marketing channels, and safeguards mobile subscribers against all fraudulent activity. Its team counts 330 people of over 25 nationalities, working from nine offices around the globe. Upstream works with more than 60 mobile operators in over 45 countries in Latin America, Africa, the Middle East and SE Asia.

The role

As a Senior Web Developer / Team Lead you will be part of a very competent team that works on mission critical applications contributing in all phases of the development process. You will use the latest Javascript technologies to build the Web based User Interfaces of our products, both public facing and internal, used in projects worldwide. You will provide expertise in the full software development lifecycle, from concept and design, to testing.


  • Writing maintainable, testable, efficient software modules.
  • Reviewing, testing, and debugging code.
  • Understanding specifications and explaining them to developers.
  • Ensuring designs and implementations are in compliance with specifications.
  • Troubleshooting and supporting existing products and infrastructure.
  • Creating / reviewing documentation and test plans.
  • Supporting continuous improvement by investigating alternatives and technologies and presenting these for architectural review.
  • Supporting and coaching developers.


Required skills:

  • Computer Science, Engineering or equivalent degree
  • 5+ years of full time professional Full Stack / Web Development experience
  • Hands on experience in designing and developing applications using JavaScript and React, AngularJS or similar frameworks
  • Experience with HTML5, CSS3 and responsive Web Authoring
  • Experience in consuming HTTP web services / REST APIs
  • Working knowledge of relational database systems and SQL
  • Experience with git
  • Strong communication skills and ability to plan and organize work

Bonus Points:

  • Experience in cross device and cross browser support
  • Experience in mobile web and legacy browser support
  • Any backend experience with NodeJS and/or PHP will be appreciated

You will be an excellent fit for our team if you are:

  • Strong team player with excellent communication skills
  • Eager to work with leading-edge technologies
  • Reliable and dedicated professional with clear thinking and strong attention to detail
  • Able to work well under pressure and meeting deadlines in sometimes challenging situations
  • Able to multitask and thrive in a dynamic environment as well as balance and prioritize activities to ensure critical items are addressed


We offer a competitive base salary and benefits, directly dependent on the candidate’s qualifications and skills. The real excitement comes from working closely with a dynamic, smart, agile and highly motivated team in a competitive and fast paced environment.

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Upstream is an equal opportunity employer. The Company does not discriminate on the basis of race, colour, creed, pregnancy, religion, gender, national origin, age, disability, marital, or any other legally protected status. The Company also makes reasonable accommodations for disabled employees. Finally, the Company prohibits the harassment of any individual based on their protected status. This policy applies to all areas of personnel actions including recruitment, hiring, training, promotion, compensation, benefits, transfer, and social and recreational programs.

Job Specification


Information Technology and Services - Athens, Greece