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Technical Lead Python Engineer
New
Python

Technical Lead Python Engineer

Warszawa
60 - 69 USD/hNet per hour - B2B
60 - 69 USD/hNet per hour - B2B
Type of work
Full-time
Experience
Senior
Employment Type
B2B
Operating mode
Hybrid
Winged IT

Winged IT

Winged IT is one of the fastest-growing companies in Poland, specializing in recruiting and delivering top-tier IT professionals. We support global organizations in building technology teams across sectors such as Software Development, FinTech, AI, Cybersecurity, Gaming, Pharma, and Logistics. Additionally, we have extensive experience in establishing Polish branches for international companies—offering comprehensive support to help our clients successfully enter the Polish market and drive their business growth.

Tech stack

    English

    B2

    Python

    advanced

    AWS

    advanced

    LLM

    advanced

    CI/CD

    advanced

Job description

Do you want to play a key role in revolutionizing the future of finance? Join our client - a global leader in deferred payments, with over 85 million active users and 2.5 million transactions processed daily! As a pioneer in modern payment solutions, our Klient is developing innovative methods that streamline the shopping experience, enhance transaction security, and expand the availability of purchasing options. 


We're seeking individuals eager to achieve remarkable results and share their bold vision to redefine the future of payments and fintech. Send us your CV - we can’t wait to meet you!


Your role is:

  • Develop and maintain Python-based microservices that support the Client’s LLM-powered tools (such as Rejection Bot, Appeal Bot, and Timeline Bot) as well as future AI-driven internal platforms.
  • Connect and interact with Klarna APIs (PTX, Decision Store, OSIS) and third-party services (like Kiki, FullStory, and Slack).
  • Track and enhance system performance using tools like Datadog and Langsmith, focusing on key metrics such as latency, error rates, and user experience.
  • Work closely with teams across Product, Data Science, Legal, and Customer Service to deliver AI solutions that are scalable, compliant, and centered on user needs.
  • Promote engineering best practices—including code reviews, continuous integration/deployment, Docker usage, thorough testing, and a microservices approach—within a fast-moving, growth-oriented team.


Your skills and experiences:

  • more than 10 years of programming experience, ideally with past roles as a Lead or Tech Lead;
  • strong command of Python, with hands-on experience developing RESTful APIs using frameworks like FastAPI, Flask, or Django;
  • solid knowledge of cloud platforms, particularly AWS services like Lambda, ECS, and others, along with a deep understanding of microservices architecture;
  • genuine interest in artificial intelligence; experience with LLMs, natural language processing, or prompt engineering is a plus;
  • familiar with CI/CD pipelines, Docker, and Git to support efficient and reliable deployments;
  • excellent communication skills, with the ability to collaborate effectively across both technical and non-technical teams;
  • proficient in AWS cloud technologies, including Serverless, Lambda, Redshift, S3, and EC2);
  • advanced English language skills (B2 level or higher).


Our client offers:

+ Great opportunity for personal development in a stable and friendly large multinational company.

+ Career growth and additional education.

+ Company events.

+ Global Reach: Impact millions with seamless shopping and payments.

+ Flexible working hours.

 

If interested, please apply safely through this portal (application rules are in accordance with GDPR). Employment agency Nr 17138.




60 - 69 USD/h

Net per hour - B2B