Lead Python Engineer (#5602)

Talanto; Warszawa; Hybrid; PLN 360,000 - 540,000; Full time

Benefits offered by this job

Flexible format

Competitive salary

Mentorship program

Tech talks

Professional development

Job summary

N-iX in Warsaw is seeking a Lead Python Engineer to guide backend platforms at scale, using Python and Kotlin. The role focuses on architecting robust distributed systems, leveraging AWS, MySQL, and Kubernetes, and leading teams to deliver high-quality, scalable services.

You will mentor engineers, drive technical plans, and collaborate with global teams to align solutions with business goals in a fast-moving environment. English proficiency is required to communicate across teams.

Qualifications

• 7+ years of experience designing and developing backend systems at scale.
• Strong expertise in Python and Kotlin.
• Proven track record with distributed systems and cloud-native technologies (AWS, MySQL, Kubernetes).
• Experience leading technical planning and delivering complex features with extensible design.
• Ability to guide teams in making impactful changes in large codebases safely and efficiently.
• Strong communication and leadership skills to foster collaboration across global teams.

Responsibilities

• Lead the design, development, and launch of backend systems at scale using Python and Kotlin (or Java).
• Architect and maintain highly available distributed systems leveraging AWS, MySQL, and Kubernetes.
• Define and drive technical plans for significant features and system components, ensuring elegant, simple, and extensible designs.
• Mentor engineers, review code, and establish best practices for safe and efficient changes in large codebases.
• Collaborate with product owners and global engineering teams to align technical solutions with business goals.
• Ensure proactive monitoring, maintenance, and swift incident response for critical communication services.

Skills

Python

Kotlin

Distributed systems

Leadership

Tools

AWS

MySQL

Kubernetes

Job description

N-iX is looking for a Lead Python Engineer to join our team.

The Comms Platform team manages mission-critical services that power transactional communication with our customers — email, SMS, and push notifications. These services are central to our organization’s success and sustainability, requiring precision, proactive maintenance, and rapid response to ensure seamless operations.

We are driving high-priority initiatives such as platform re-architecture and modernization, high availability, and internationalization. These efforts are vital for organizational growth and competitiveness, and they demand strong technical leadership to deliver efficiently and effectively. Above all, our customers deserve timely, reliable, and high-quality communications.

Key Responsibilities

Lead the design, development, and launch of backend systems at scale using Python and Kotlin (or Java).

Architect and maintain highly available distributed systems leveraging AWS, MySQL, and Kubernetes.

Define and drive technical plans for significant features and system components, ensuring elegant, simple, and extensible designs.

Mentor engineers, review code, and establish best practices for safe and efficient changes in large codebases.

Collaborate with product owners and global engineering teams to align technical solutions with business goals.

Ensure proactive monitoring, maintenance, and swift incident response for critical communication services.

Requirements

7+ years of experience designing and developing backend systems at scale.

Strong expertise in Python and Kotlin.

Proven track record with distributed systems and cloud-native technologies (AWS, MySQL, Kubernetes).

Experience leading technical planning and delivering complex features with extensible design.

Ability to guide teams in making impactful changes in large codebases safely and efficiently.

Strong communication and leadership skills to foster collaboration across global teams.

• English level at least Upper-Intermediate

We offer*:

• Flexible working format - remote, office-based or flexible
• A competitive salary and good compensation package
• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)
• Active tech communities with regular knowledge sharing
• Memorable anniversary presents
• Corporate events and team buildings
• Other location-specific benefits

*not applicable for freelancers