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Software Engineer (Developer Experience)

Capital

Warsaw, Mazowieckie, Poland Hybrid permanent

Posted: January 28, 2026

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Quick Summary

We are looking for a mid-level or senior Software Engineer to join our Developer Experience (DevEx) team and take full ownership of internal developer tools.

Job Description

We are a leading trading platform that is ambitiously expanding to the four corners of the globe. Our top-rated products have won prestigious industry awards for their cutting-edge technology and seamless client experience. We deliver only the best, so we are always in search of the best people to join our ever-growing talented team.

We are looking for a mid-level or senior Software Engineer to join our Developer Experience (DevEx) team and take full ownership of internal developer tools. In this role, you will focus on building and evolving tooling that improves developer productivity, reduces friction, and enhances day-to-day engineering workflows across the organization.
Your first and main project will be the development of an internal AI-powered chatbot, written in Python, designed to help engineers resolve technical questions in real time. You’ll work closely with engineers across teams to understand their needs and deliver practical, high-impact solutions.


Responsibilities::
• Own the design, development, and maintenance of internal developer tools.
• Lead the development and continuous improvement of an internal AI-powered chatbot for engineers.
• Collaborate with engineering teams to identify workflow bottlenecks and opportunities for automation.
• Build scalable, reliable, and easy-to-use tooling that improves developer productivity.
• Write clean, maintainable, and well-tested code.
• Take responsibility for the full lifecycle of tools, from idea and implementation to adoption and iteration.


Requirements::
• 4+ years of experience in software engineering.
• Strong proficiency in Python.
• Experience designing and building production-grade software systems.
• Ability to work independently and take ownership of projects end-to-end.
• Strong problem-solving skills and a user-focused mindset.
• Fluent English (B2+).


Nice to have::
• Experience with Java.
• Experience building internal tools, developer platforms, or productivity tooling.
• Familiarity with AI/LLM-based systems or chatbots.
• Experience with automation, CI/CD, or platform engineering.


What you will get in return:

• Competitive Salary: We believe great work deserves great pay! Your skills and talents will be rewarded with a salary that makes you feel valued and motivated.
• Work-Life Harmony: Join a company that genuinely cares about you - because your life outside of work matters just as much as your time on the clock. #LI-Hybrid
• Generous Time Off: Need a breather? Our annual leave policy lets you recharge and enjoy life outside of work without a worry.
• Employee Referral Program: Love working here? Share the love! Bring your talented friends on board and get rewarded for growing our awesome team.
• Comprehensive Health & Pension Benefits: From medical insurance to pension plans, we’ve got your back. Plus, location-specific benefits and perks!
• Workation Wonderland: Live your digital nomad dreams with 30 extra days to work remotely from anywhere in the world (some restrictions apply). Adventure awaits!
• Volunteer Days: Make a difference! Take two additional paid days each year to support causes you care about and give back to the community.

Be a key player at the forefront of the digital assets movement, propelling your career to new heights! Join a dynamic and rapidly expanding company that values and rewards talent, initiative, and creativity. Work alongside one of the most brilliant teams in the industry.

Our company has an Internal Reporting Procedure. It is available from the Human Resources Department upon request [email protected]. You may report a violation referred to in the Procedure under the terms specified therein.

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