Senior Software Developer (Python/Go + Data)

Transition Technologies PSC; Kielce; On-site; PLN 180,000 - 240,000; Full time

Job summary

A leading technology company in Kielce seeks a Senior Software Developer proficient in Python or Golang. You will collaborate on innovative projects, design robust software, and provide technical leadership. If you have a degree in Computer Science and extensive experience in backend services or analytics platforms, we encourage you to apply. Enjoy flexible working hours and a friendly workplace atmosphere.

Benefits

Flexible working hours

Innovative projects

Friendly work atmosphere

Integration meetings

Internal competitions

Qualifications

• Bachelor's or master's degree in Computer Science or related field.
• Extensive professional experience in software development.
• Proficiency in Python or Golang; other languages are a plus.

Responsibilities

• Architect, design, and develop scalable software solutions.
• Collaborate in cross-functional teams for feature development.
• Optimize and enhance existing software for performance.

Skills

Software Development

Backend Services

Analytics Platforms

Python

Go

Apache Spark

FastAPI

Pandas

Education

Bachelor’s or Master’s degree in Computer Science

Tools

Apache Spark

Ray.io

Job description

_Senior Software Developer (Python/Go + Data) Kielce

_What will you do?

Responsibilities :

• You enjoy architecting, designing, and developing robust, scalable software solutions for the analytics platform.
• You collaborate well in cross-functional teams to define, design, and implement new features.
• You excel at optimize and enhance existing software for improved performance and scalability.
• You thrive on diagnosing and resolving complex software defects and issues.
• You provide technical leadership and mentorship to junior developers, promoting best practices and continuous learning.
• You constantly remain at the forefront of technological advancements to drive innovation and efficiency in every project that you participate in.

_Who are we looking for?

Requirements :

• A Bachelor’s or master’s degree in computer science, Software Engineering, or a related field.
• Extensive professional experience in software development, with a focus on backend services or analytics platforms
• Proficiency in either Python or Golang. Other languages are considered an asset.

Nice to have :

• Proficiency in Apache Spark for distributed data processing and analytics.
• Experience with Ray.io for scalable, distributed computing frameworks.
• Familiarity with Daft (getdaft.io) for managing complex data workflows.
• Expertise in building high-performance APIs using FastAPI.
• Strong analytical skills using data manipulation libraries such as Pandas or Polars.

_Why is it worth it?

What can we offer :

• Flexible forms of employment and working hours (CoE or B2B)
• An interesting, challenging job in the dynamically developing Capital Group company;
• Work on innovative projects using modern technologies;
• Direct impact on shaping the image of the Capital Group’s companies on the market;
• Possibility to develop competences in a wide range;
• Stability of employment and a friendly work atmosphere;
• Cool benefits, among others integration meetings, internal company competitions, fruit Tuesdays, sweet Thursdays and much more;