Senior Full-Stack Developer

Location: Belgrade (working US eastern business hours)
Company: US-based company with a office in Belgrade

We are a US-based company with an office in Belgrade, building and maintaining mission-critical web applications and systems for our clients. We are looking for a Senior Full-Stack Developer who is passionate about creating and supporting robust, scalable applications, with a strong focus on data integrity and cloud infrastructure.

In this role, you will be responsible for developing new features on our in-house client-facing portal, maintaining existing systems, and supporting our migration from legacy applications to a modern AWS-based architecture. You will work directly with managers and the CTO based in the US, so excellent English communication skills are essential.

Responsibilities

• Develop new features and enhance existing functionality on our internal and client-facing web applications.
• Maintain, monitor, and optimize our MySQL databases.
• Migrate legacy PHP and Perl applications to modern AWS-based solutions.
• Monitor and maintain cloud infrastructure to ensure scalability, reliability, and security.
• Resolve tickets and requests from users.
• Collaborate closely with the US-based management and technical team to design and implement solutions.

Required Skills & Qualifications

• 5 or more years of relevant professional experience in a full-stack development role.
• Client-side web development in HTML5 and JavaScript
• Significant experience with MySQL, including optimization, complex queries, and maintaining data integrity.
• Some experience with AWS, including (but not limited to):
  • Lambda, CloudFormation, API Gateway, EC2, CloudWatch, and other core services.
• Experience with Vue.js (or other reactive front-end framework) and Node.js (back-end).
• Excellent written and spoken English, as you will communicate directly with US-based managers and CTO.
• Ability to maintain and improve existing systems while contributing to new development.
• Willingness to gain working understanding of PHP and Perl, as some projects involve migrating legacy code.
• Ability to handle changing priorities, manage multiple tasks and work within tight time frames and deadlines

Preferred Qualifications

• Bachelor’s degree in Computer Science, Engineering, or a related field.