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Senior/Lead Full-Stack Software Engineer (Python, JavaScript)

AT Exadel
Exadel

Senior/Lead Full-Stack Software Engineer (Python, JavaScript)

Sofia, Bulgaria

We are seeking a highly communicative, collaborative, and curious Senior/Lead Full-Stack Software Engineer to join our team. You will play a key role in designing and implementing scalable API services and backend logic, primarily using Python and Node.js, with strong interaction with data repositories like MongoDB. We are looking for a self-starter who thrives in a dynamic, collaborative environment and is not afraid to take initiative, ask questions, and contribute across the stack.

Work at Exadel - Who We Are

We don’t just follow trends—we help define them. For 25+ years, Exadel has transformed global enterprises. Now, we’re leading the charge in AI-driven solutions that scale with impact. And it’s our people who make it happen—driven, collaborative, and always learning.

About the Customer

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The company is headquartered in New York City, has 60+ offices in the Americas, Europe, Asia Pacific, and the Middle East, and employs 4,500+ professionals. This international management consulting company focuses on retail services.

Requirements

  • 5+ years of professional experience in full stack or backend software development
  • Strong proficiency in Python for backend development and scripting
  • Any experience with Node.js, including building and maintaining production-level services
  • Hands-on experience with MongoDB, including data modeling, querying, and performance optimization
  • Practical knowledge of containerization using Docker, including developing, testing, and deploying applications in Dockerized environments
  • Working knowledge of frontend technologies: HTML, CSS, and JavaScript (ability to maintain and contribute to frontend codebase when needed)
  • Excellent problem-solving skills and attention to detail
  • Strong communication and collaboration abilities; comfortable working in cross-functional teams
  • Self-motivated and proactive, with a passion for learning and innovation

Nice to have

  • Experience working with Databricks or other big data processing tools
  • Familiarity with Vue.js or similar frontend frameworks
  • Experience with microservices architecture and container orchestration (e.g., Kubernetes)
  • Background in agile development environments and DevOps practices

English level

Upper-intermediate

Responsibilities

  • Design, develop, and maintain scalable API services using Python and Node.js
  • Work with data repositories, especially MongoDB, to serve data effectively through APIs
  • Collaborate with cross-functional teams to define and deliver features from concept to production
  • Develop and debug applications running in Docker containers
  • Maintain and improve frontend components using HTML, CSS, JavaScript (VueJS is a plus)
  • Apply software development best practices including code reviews, testing, and CI/CD
  • Communicate proactively with teammates, product managers, and stakeholders
  • Lead by example in code quality, architecture discussions, and team collaboration
Client-provided location(s): Sofia, Bulgaria; Hungary; Lithuania; Poland; Romania
Job ID: 5545037004
Employment Type: Other