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Senior Backend Developer

Polska🌐 Remote💼 Full-time🗓 2025-09-22 → 2026-08-03

Core

Design, develop, and maintain complex backend systems and web applications using Python Django and Go.

Role type

Senior Backend Developer

Builds

Scalable and efficient services and robust APIs

Domain

Cloud infrastructure and web development

Deliverable

production ML models | product features | infrastructure

Required skills

Python, Django, Go, PostgreSQL, MySQL, Redis, BigQuery, Elasticsearch, Celery, RESTful API design, GCP, AWS, Bash scripting, Linux, PyTest, Postman, Git

Preferred skills

Cybersecurity methodologies, Agile frameworks, Scrum Master skills

Technologies

Python, Django, Go, PostgreSQL, MySQL, Redis, BigQuery, Elasticsearch, Celery, GCP, AWS, Bash, Linux, PyTest, Postman, Git

Responsibilities

Design and develop backend systems and web applications; Build and maintain scalable services; Build and manage robust APIs; Optimize application performance and troubleshoot issues; Implement security and data protection best practices; Mentor junior developers

Seniority

Senior, hands-on IC

Full job description

  • Design, develop, and maintain complex backend systems and web applications using Python Django.
  • Build and maintain scalable and efficient services using Go.
  • Build and manage robust APIs to support seamless integration with front-end applications and third-party services.
  • Write clean, modular, and efficient code aligned with industry standards and best practices.
  • Collaborate closely with front-end developers, designers, and other stakeholders to deliver exceptional user experiences.
  • Optimize application performance and troubleshoot issues to ensure reliability.
  • Implement and maintain best practices for security and data protection.
  • Mentor and guide junior developers, fostering a strong team culture of learning and growth.
  • Stay informed about the latest technologies and trends to continuously improve our development processes.

Requirements

Required Skills and Qualifications

  • Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
  • 5+ years of professional experience in backend development with Python and Django.
  • 3+ years of professional experience with GoLang.
  • In-depth knowledge of databases such as PostgreSQL, MySQL, ORM, and Redis.
  • Strong understanding of BigQuery for data warehousing.
  • Strong understanding of Elasticsearch.
  • Proficiency with distributed task queues, particularly Celery.
  • Experience designing and implementing RESTful APIs.
  • 2+ years of experience working with GCP or AWS cloud platforms.
  • Solid skills in Bash scripting and Linux-based environments.
  • Proficiency in testing frameworks such as PyTest for unit and integration testing.
  • Hands-on experience with API testing tools like Postman to ensure seamless functionality and performance.
  • Strong experience with Git for version control.
  • Proven track record of developing and deploying large-scale, high-performance applications.
  • Excellent problem-solving skills and attention to detail.
  • Strong written and verbal communication skills.

Benefits

  • Learning Opportunities: Gain hands-on experience with the latest cybersecurity methodologies and Agile frameworks.
  • Professional Growth: Work alongside cybersecurity experts and seasoned engineers, expanding your Scrum Master skill set and leadership capabilities.
  • Innovative Environment: Be part of a pioneering cybersecurity company with a strong commitment to innovation, collaboration, and continuous improvement.
  • Remote-First Culture: Enjoy the flexibility and autonomy of working from anywhere while staying connected through modern collaboration tools.
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