Jr-Mid Python Developer - Accounting Team

B2C2; Polska; On-site; PLN 40,000 - 60,000; Full time

Job summary

A technology-driven financial firm in Poland is seeking a talented Python Developer to work on innovative applications and collaborate with cross-functional teams. The ideal candidate should have strong Python skills, experience with unit testing, and a passion for the financial sector. Join an ambitious and innovative environment that values meritocracy and teamwork while working on exciting challenges.

Qualifications

• Strong proficiency in Python and object-oriented programming concepts.
• Practical experience with a Python unit testing framework (e.g., unittest or pytest).
• Knowledge of relational databases and SQL.
• Proficiency in using Git for version control.

Responsibilities

• Develop and maintain Python-based applications for the Accounting team.
• Write clean and efficient code that meets team standards.
• Participate in code reviews and provide constructive feedback.
• Create and maintain unit tests for reliability.

Skills

Python programming

Unit testing

Relational databases and SQL

Version control with Git

Analytical thinking

Teamwork abilities

English proficiency

Tools

Linux

Docker

Django

PostgreSQL

Kafka

Redis

Job description

About us:

B2C2 is a digital asset pioneer building the ecosystem of the future.

The firm has unlocked institutional access to crypto by providing reliable liquidity across market conditions.

B2C2's success is built on crypto-native technology and continuous product innovation, making it the partner of choice for diverse institutions globally. Founded in 2015 and acquired by Japanese financial group, SBI, in 2020, B2C2 remains a standalone company. Headquartered in the UK, with offices in the US and Japan, B2C2 OTC Ltd. is authorised and regulated by the UK's Financial Conduct Authority (FRN 810834).

We pride ourselves on our company culture and ability to attract not only the top talent but the right people. If you are looking for a role in an exciting new industry, at a dynamic company please keep reading.

SCOPE OF THE ROLE

This is an opportunity to work on a wide range of different challenges across multiple teams with the opportunity to learn in many different business domains. The work in this role will directly benefit many different stakeholders across the business, contributing to strategic business objectives as well as improvements to our stack. You will be collaborating with cross‑functional teams to understand project requirements and contribute to the overall system design, working closely with developers and business stakeholders in this exciting position.

Role and Responsibilities:

• Develop and maintain Python-based applications and components for the Accounting team, including the implementation of new blockchain explorers into our system
• Write clean, efficient, and well‑documented code that meets team standards
• Participate in code reviews, share constructive feedback, and iterate on solutions
• Create and maintain unit tests to ensure reliability and performance
• Collaborate with cross‑functional teams to define, prototype, and implement new features
• Work closely with other teams to investigate and solve issues
• Maintain and enforce good quality internal documentation

Qualifications, skills and experience:

• Strong proficiency in Python and object‑oriented programming concepts
• Practical experience with a Python unit testing framework (e.g., unittest or pytest)
• Knowledge of relational databases and SQL
• Proficiency in using Git for version control and collaborative development (e.g., branching, merging, resolving conflicts)
• Habit of writing maintainable, well‑documented code
• Good analytical thinking, communication, and teamwork abilities
• Proficiency in English

Nice‑to‑haves:

• Experience with Linux, Docker and CI/CD automation tools
• Experience with Django+DRF or another commonly used Python web framework
• Understanding of web technologies and protocols (e.g. HTTP, WebSocket)
• Experience with Celery, PostgreSQL, Kafka, Redis
• Previous experience or interest in cryptocurrencies, trading platforms, or financial markets
• Previous internship or commercial work experience

A strong culture is a common denominator among the most successful companies and B2C2 is proud to be a values-based company.

• Ambitious - Striving to make history through world class achievements
• Innovative - Forward looking in our solutions for clients and employees
• Meritocratic - Rewarding positive contribution across the organisation
• Collegiate - Achieving through teamwork through a healthy environment
• Risk Aware - Informed decision making and considered in our practices

Equal Employment Opportunities Policy:

B2C2 is committed to a policy of equal employment opportunity for applicants and employees and we welcome applicants from all backgrounds. It is the policy of B2C2 to apply recruiting, hiring, training, promotion, compensation and professional development practices without regard to actual or perceived race, colour, religion, sex (including pregnancy, sexual orientation and gender identity), national origin, age, disability or certain classifications based on genetic information, or because someone is married or in a civil partnership or any other characteristic protected by federal, state or local laws, regulations or ordinances. As such, B2C2 will not tolerate discrimination against any of our employees on the basis of membership in a protected category. We are also committed to creating an inclusive environment to ensure we attract, engage, promote and retain the best talent. We will consider flexible working arrangements for any of our roles.