Senior Kotlin Developer/Tech Lead (AI, Kotlin, Python)

TL;DR

Senior Kotlin Developer/Tech Lead (AI, Kotlin, Python): Leading and developing intelligent solutions for an e-commerce advertising platform with an accent on engineering excellence, architecture, and end-to-end delivery. Focus on translating business goals into technical execution, conducting code reviews, and scaling AI-powered features for a massive user base.

Location: Hybrid, 1 day per week required from Gdynia, Warsaw, Krakow, or Rzeszow, Poland.

Salary: 20,000–28,000 PLN/month (B2B)

Company

hirify.global is an outsourcing company providing highly specialized IT teams to clients worldwide, including a market-leading Polish e-commerce platform.

What you will do

• Lead and develop the Language Intelligence engineering team.
• Take end-to-end ownership of delivery, quality, and reliability.
• Drive architectural decisions and technical direction.
• Ensure engineering excellence standards (code quality, testing, CI/CD, production readiness).
• Collaborate closely with Product, UX, and Business stakeholders.
• Translate business needs into technical solutions and execution plans.

Requirements

• Min. 7 years of experience with Kotlin and Python.
• Proven experience leading a software development team (people leadership + delivery ownership).
• Ability to contribute to architecture decisions and conduct high-quality code reviews.
• Experience in ensuring engineering excellence (clean code, testing strategy, CI/CD, production readiness).
• Strong ownership mindset and accountability for outcomes, quality, and reliability.
• Ability to translate business goals into clear scopes, priorities, and execution plans.
• Very good English communication skills.

Nice to have

• Background in e-commerce, marketplace, or consumer platforms.
• Experience in mobile development.
• Track record in AI-powered projects.

Culture & Benefits

• Real impact on product direction as a technical partner in product discovery.
• Strong ownership and autonomy in technical and delivery decisions.
• Possibility to work on AI-powered and innovative solutions.
• Contribute to the development of a leading e-commerce advertising platform.
• Support for pupils and students, internships, and support for local initiatives.
• Proprietary professional development programme.