We are AppGreat! We are a young and ambitious company like no other!

AppGreat is one of the fastest growing global IT companies, supporting the highest tech organizations in the world from three locations: Sofia, Bulgaria, Skopje, North Macedonia, and Bucharest, Romania.

We are walking with top talents and highly experienced management to ensure the world’s leading technology companies meet all the business challenges that the future holds.

WHY JOIN OUR DREAM TEAM?

The most important part of AppGreat is the team. From our founders to the last person, we are committed to creating a pleasant environment and a place where everybody feels like they belong.

We invest in them in any way we can, starting from the amazing atmosphere in the office, unique benefits and career growth opportunities.

We are looking for an experienced JavaScript Support Engineer (Senior Implementation Support Engineer) to join our team of seasoned professionals.

In this role you will be playing a key role in the overall customer experience process by applying your skills and knowledge in JavaScript, HTML and CSS to provide a best in town front-end technical support service to our clients (please mind that the required tech-stack is mandatory for the role). 

You will be expected to handle customers’ requests and inquiries regarding the company’s onboarding process, user experience process, or to provide a first level technical support by troubleshooting incidents and/ or escalating them to the next level of support.

RESPONSIBILITIES: 

• Support the seamless onboarding of new clients by managing technical configurations, troubleshooting integration issues, and ensuring smooth implementation.
• Troubleshoot technical implementation issues and meet response time targets.
• Maintain expertise in our products and features, sharing knowledge and best practices with internal teams
• Write and maintain technical documentation, integration playbooks, and internal knowledge base articles.
• Diagnose and resolve technical issues effectively, collaborating with the engineering and Product teams to address bugs, design, and client requests.. 
• Manage platform configurations, including content setup, video player settings, and basic advertising integrations.
• Conduct post-launch QA focused on validating technical performance and expected behaviors.
• Perform validation checks on integration files and ensure configuration accuracy across environments.
• Collaborate with developers and product teams to implement and test new integrations, including third-party APIs and SDKs.

REQUIREMENTS:

• Excellent written and verbal communication skills in English.
• Bachelor’s degree in Computer Science, Engineering or equivalent technical field (or 4+ years of equivalent experience)
• 3+ years hands-on experience in technical support environment, implementing and debugging JavaScript/HTML/CSS in production environments
• Solid command of browser DevTools, network‑trace analysis and console debugging
• Experience with version control systems such as Git, and understanding of SQL or ability to query and interpret data sets.
• Ability to document technical issues and solutions clearly and concisely – Must
• Experience working in multicultural environments, particularly with U.S.-based teams, is an advantage.
• Ability to effectively communicate and collaborate remotely across time zones, demonstrate proactive self-management, and maintain strong independent working habits.
• Ability to ensure the following shift coverage (Monday-Friday): 9.00 am – 6.00 pm or 2.00 pm – 11.00 pm.

OUR OFFER:

• Attractive remuneration package;
• Excellent career growth opportunities;
• Great office location – our office is just next to Paradise Mall in Sofia;
• 22 days annual leave, plus an additional day off on your birthday on the top of that;
• A generous social package that includes food vouchers, private medical insurance, sport membership card with a huge discount, Netflix or Spotify subscription, company events, and many others;
• Company treats such as fresh fruits and nuts, coffee, snacks, sweets and protein bars at the office;
• Comprehensive training and development programs;
• A great opportunity for you to be surrounded by happy and content people.