Senior Software Engineer

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.

We are looking for an experienced Senior Software Engineer to join a global AI Markets technology team focused on delivering high-quality, AI-powered solutions for institutional clients. Our mission is to create cutting-edge applications using natural language processing (NLP) and AI to transform how financial markets data is accessed and consumed.

You will be working in a collaborative engineering environment where all stages of the delivery lifecycle matter – from analysis and design through to deployment and production support, following the principle: “If you build it, you support it.”

Sounds like your kind of challenge?

What you'll be doing

Collaborate in a small team of 4–6 developers, closely aligned with a dedicated product owner.
Translate business requirements into development stories and deliver iteratively into production.
Maintain production ownership: provide technical support for the solutions delivered.
Identify and reduce technical debt, ensuring sustainable code quality while delivering new features.
Design and develop scalable, maintainable solutions in Python following internal standards and best practices.
Participate in pair programming and cross-skill within the team, contributing to backend and, when necessary, front-end tasks.
Take ownership of problem-solving and contribute to continuous integration and delivery improvements.

Note: Detailed project information will be shared during the recruitment process.

What you get in return

Flexible cooperation model – choose the form that suits you best
(B2B, employment contract, etc.)
Hybrid work setup – 2 times a week at Cracow offcie
Collaborative team culture – work alongside experienced professionals eager to share knowledge
Continuous development – access to training platforms and growth opportunities
Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
High quality equipment – laptop and essential software provided

Who we're looking for

5+ years of hands-on experience with Python, including frameworks and libraries such as Pandas, NumPy, Flask, or Django.
Experience in designing and deploying enterprise-level applications with strong coding principles.
Knowledge of machine learning, NLP, or AI concepts is an advantage.
Understanding of Agile development methodologies and practices.
Strong problem-solving mindset and collaborative approach, capable of working with global, multidisciplinary teams.
Ability to mentor junior developers and lead by example.
Fluent English written and spoken, with excellent communication skills.

Nice to have:

Exposure to JavaScript frameworks (e.g., Vue.js) or willingness to learn front-end technologies.
Understanding of cloud platforms or experience with KDB.
Domain knowledge in financial markets, particularly FX or Rates pricing systems.
Familiarity with DevOps practices, containerization, or automation.

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.

Ready to take the next step?

Submit your application! We look forward to reviewing your profile 😊

Know someone who might be a great fit?
Feel free to share this opportunity using the referral link: Mindbox Referrals System