Senior Software Engineer

TSMG Holding; Kraków; On-site; PLN 100,000 - 130,000; Full time

Job summary

TSMG Holding is seeking a Senior Software Engineer / Developer in Kraków, Poland. This role involves leading and mentoring a team while ensuring the stability and performance of business-critical applications.

The ideal candidate will have over 5 years of development experience, strong skills in Python and Angular, and a passion for technical mentoring. If you are looking for a challenging position in a collaborative environment, apply now!

Qualifications

• 5+ years of experience in software development or related technical roles.
• Experience conducting code reviews and maintaining coding standards.
• Strong analytical and problem-solving skills.

Responsibilities

• Design, develop, maintain, and improve internal software applications.
• Mentor developers and support engineers on coding standards.
• Support and maintain Linux/Unix server infrastructure.

Skills

Python backend development

Angular frontend development

Linux/Unix administration

Bash scripting

Networking fundamentals and troubleshooting

Education

Bachelor’s degree in Computer Science or related field

Tools

Google Cloud Platform (GCP)

Job description

About the Role

We are looking for an experienced Sr. Software Engineer / Developer to lead and mentor a team of software support engineers, frontend developers, and backend developers. In this role, you will help ensure the stability, performance, and continuous improvement of business‑critical internal applications.

This position combines hands‑on technical work with team leadership, troubleshooting, and cross‑functional collaboration. The ideal candidate has strong software development experience, enjoys solving complex technical challenges, and is passionate about mentoring technical teams.

Key Responsibilities

Technical Leadership & Development

• Design, develop, maintain, and improve internal software applications and systems
• Provide hands‑on support for backend and frontend development tasks
• Troubleshoot complex technical issues and perform root‑cause analysis
• Support and maintain Linux/Unix server infrastructure and operations
• Write and maintain Bash scripts for automation and operational tasks
• Contribute to application performance optimization and system reliability
• Participate in architecture discussions and technical decision‑making

Product & Operational Support

• Gather, document, and prioritize business and technical requirements
• Support roadmap planning, backlog management, and feature prioritization
• Develop deep product knowledge and understand operational workflows and system interdependencies
• Collaborate with internal teams to improve processes, tools, and system functionality

Team Mentorship & Guidance

• Mentor and guide developers and support engineers on coding standards and best practices
• Conduct code reviews and provide constructive technical feedback
• Support team growth through technical coaching and knowledge sharing
• Assist team members with troubleshooting and problem‑solving activities

Required Skills & Qualifications

• Bachelor’s degree in Computer Science, Information Technology, Engineering, or related field, or equivalent professional experience
• 5+ years of experience in software development, support operations, or related technical roles
• Strong technical skills in:
  • Python backend development
  • Angular frontend development
  • Linux/Unix administration
  • Bash scripting
  • Networking fundamentals and troubleshooting
• Working knowledge of Google Cloud Platform (GCP) and serverless architectures
• Experience conducting code reviews and maintaining coding standards
• Strong analytical and problem‑solving skills
• Excellent verbal and written communication skills
• Proven experience mentoring and coaching technical teams

Preferred Qualities

• Strong sense of ownership and accountability
• Ability to work in fast‑paced technical environments
• Passion for continuous improvement and technical excellence
• Collaborative mindset and strong teamwork skills