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Senior Fullstack Backend Engineer, Python, AI/ML at Kolomolo | JobVerse
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Senior Fullstack Backend Engineer, Python, AI/ML
Kolomolo
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Senior Fullstack Backend Engineer, Python, AI/ML
Kraków, Lesser Poland, Poland
Full Time
6 hours ago
No H1B
Apply Now
Key skills
AWS
Azure
Cloud
Django
Docker
Flask
Google Cloud Platform
Kubernetes
Microservices
MongoDB
Postgres
Python
PyTorch
React
Tensorflow
TypeScript
AI
ML
Generative AI
GenAI
LLM
LangChain
TensorFlow
Hugging Face
MLOps
FastAPI
GCP
Google Cloud
Serverless
PostgreSQL
RESTful
Performance Optimization
Agile
Scrum
Kanban
CI/CD
Communication
Collaboration
About this role
Role Overview
Architect, build, and maintain scalable backend systems and APIs using Python and modern frameworks (e.g., FastAPI, Django, Flask)
Design and extend services to integrate with databases, authentication, and third-party APIs
Develop and maintain data processing pipelines and backend integrations for product features
Own end-to-end delivery: backend architecture, deployment, CI/CD pipelines, testing, and performance optimization
Implement and expose AI/ML/GenAI features (e.g., LLM integrations, embeddings, vector search) as part of backend services
Collaborate with frontend developers on API design and occasionally contribute to frontend features (React/TypeScript)
Participate in code reviews, bug triage, and feature optimization
Work closely with product, design, and data teams in agile environments (Scrum/Kanban)
Requirements
8+ years of professional software development experience, with a strong focus on backend systems
Deep proficiency in Python for building scalable services and APIs
Solid understanding of databases (PostgreSQL, MongoDB, or equivalent) and data modeling
Experience with RESTful APIs, microservices, and containerized deployments (Docker/Kubernetes)
Strong foundation in software engineering best practices: testing, CI/CD, modular code, and performance tuning
Excellent problem-solving, communication, and collaboration skills
Familiarity with AI/ML frameworks (e.g., PyTorch, TensorFlow, Hugging Face, LangChain) and interest in Generative AI applications is nice to have
Knowledge of MLOps practices (CI/CD for ML, experiment tracking, model deployment pipelines) is nice to have
Experience with frontend technologies (React, TypeScript) to support full-stack development when needed is nice to have
Exposure to cloud platforms (AWS, GCP, Azure) and serverless architectures is nice to have
Tech Stack
AWS
Azure
Cloud
Django
Docker
Flask
Google Cloud Platform
Kubernetes
Microservices
MongoDB
Postgres
Python
PyTorch
React
Tensorflow
TypeScript
Benefits
Competitive salary and benefits
Career development opportunities in a growing tech company
Continuous learning culture: mentorship, internal training, and certifications
Flexible, agile work environment (remote, hybrid, or on-site in Kraków)
Office perks: great coffee, tea, fresh fruit, snacks, and a fun atmosphere
Flat management structure, where your voice matters
Regular team events and a social, supportive work culture
B2B contract or Contract of Mandate (Umowa Zlecenie)
Apply Now
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