Senior Software Engineer & Tech Lead: Scalable AI Apps

Jobtailor; Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

Jobtailor in Kraków is seeking an experienced software engineer to own the design, development and operation of new features. You will lead team design and architectural discussions, build reliable, scalable, and high-performance applications, and collaborate with product management, design, customers, and other engineering teams to deliver value.

The role involves debugging customer-reported issues, participating in on-call rotations and post-incident reviews to improve service reliability, and

Qualifications

• Proficiency in Python (preferred) or Java, with a solid foundation in data structures, algorithms, microservices, and RESTful APIs
• Expertise in SQL, key-value stores (Redis), and search/analytics platforms (Elasticsearch, Splunk)
• Hands-on experience with AWS/Azure/GCP, containerization (Docker, Kubernetes), and CI/CD pipelines (Jenkins, GitLab)
• Skilled in system monitoring, telemetry, log management, and leveraging AI coding assistants (e.g., Cursor, Claude Code)
• Proven track record of translating complex technical concepts for diverse audiences
• Demonstrated commitment to accountability and intellectual curiosity
• 8+ years of related experience with a technical Bachelor’s degree, or 6+ years with Master’s
• Proficiency in frontend programming languages and frameworks such as JavaScript, TypeScript and React
• Hands-on experience with building, testing and deploying production ready LLM based AI solutions

Responsibilities

• Own and be accountable for the design, development and operation of new product features
• Lead team design and architectural discussions
• Build reliable, scalable, and high-performance applications
• Debug and resolve customer-reported issues, delivering effective solutions
• Participate in on-call rotations, post-incident reviews, and other operational activities to ensure service reliability
• Learn, explore, and integrate new technologies into the team’s workflow
• Mentor junior members of the team with an eye toward their future career growth
• Work with product management, the design team, customers, and other engineering teams
• Work on Splunk Security’s User & Entity Behavior Analytics (UEBA) solution

Skills

Python

Java

SQL

Microservices

RESTful APIs

Elasticsearch

Redis

Docker

Kubernetes

CI/CD Pipelines

JavaScript/TypeScript/React

Education

Bachelor’s degree

Master’s degree

Tools

Splunk

Jenkins

GitLab

AI coding assistants

Telemetry tools

Job description

Jobtailor in Kraków is seeking an experienced software engineer to own the design, development and operation of new features. You will lead team design and architectural discussions, build reliable, scalable, and high-performance applications, and collaborate with product management, design, customers, and other engineering teams to deliver value.

The role involves debugging customer-reported issues, participating in on-call rotations and post-incident reviews to improve service reliability, and