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April 24, 2026
Python Developer
Mid • Remote
12,100 - 19,700 PLN
Gdynia, Poland
We're looking for a Python Developer to join our team and work across a range of commercial and open-source projects focused on Python backend development and AI/LLM solutions. You'll build backends, design integrations with AI model providers, and contribute to products used by international clients.
Project description:
Your first project will be developing a Python-based backend for an open-source AI Red Teaming platform - a tool that enables organizations to systematically test and evaluate AI/LLM models for safety, fairness, and reliability. The project involves building a modular backend with integrations to major AI model providers (OpenAI, Anthropic, Google Gemini, AWS Bedrock, and others), real-time streaming, evaluation engine, analytics, and deployment on AWS. The platform will be released as an open-source product with a separate managed instance for the client.
Requirements:
- 3+ years of commercial experience in Python backend development
- Experience with at least one modern Python web framework (Django, FastAPI, or Flask)
- Practical experience integrating AI/LLM APIs into applications (e.g. OpenAI, Anthropic, or similar providers)
- Solid knowledge of PostgreSQL and REST API design
- Familiarity with async programming in Python
- Experience with Docker and CI/CD pipelines
- Experience writing automated tests
- Good command of English (daily communication with an international client)
- Degree in computer science or a related field
Nice to have:
- Experience with FastAPI
- Experience with LiteLLM or similar LLM abstraction/routing libraries
- Experience with real-time streaming (SSE, WebSockets)
- Experience with AWS services (EKS, S3, RDS)
- Familiarity with React or frontend technologies
- Experience with open-source projects
What We Offer
- Fully remote work within a small, supportive team
- Real responsibility from the start - no months of onboarding before you contribute
- Variety - multiple projects mean diverse problems and technologies
- Opportunities for professional growth, including contributions to open-source projects
- A team culture built on transparency, trust, and fast feedback
We look forward to hearing from you!
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Łódź, LD, Poland
9,000 - 15,000 PLN
🏢 Summary: Oferta dla Python Developera (Django) obejmuje rozwój, integrację i optymalizację produktów opartych na AI, ze szczególnym naciskiem na wydajność, skalowalność i jakość kodu. Rola zakłada współpracę z zespołami technicznymi, tworzenie dokumentacji oraz wykorzystanie narzędzi AI w procesie wytwarzania oprogramowania. 🗂️ Requirements: Minimum 5 lat komercyjnego doświadczenia w Pythonie, Znajomość Django, Znajomość Django REST Framework, Biegłość w Git, Znajomość Linux, Znajomość Docker, Praktyczne użycie Claude Code lub narzędzi AI do tworzenia, analizy, testowania i refaktoryzacji kodu, Znajomość struktur danych, algorytmów i zasad projektowania oprogramowania, Dbałość o jakość rozwiązań i umiejętność analizy problemów, Umiejętność współpracy w zespole 📃 Skills: Python, Django, Git, Linux, Docker, Claude, AI, Algorytmy 🏢 Description: Poszukujemy Python Developera (Django), który będzie odpowiedzialny za rozwój, integrację i optymalizację produktów Simon AI, Simon Recovery, SyncGuard. Będziesz mieć okazję współpracować z doświadczonymi specjalistami i rozwijać swoje umiejętności w pracy z najnowszymi technologiami w obszarze AI. Jesteśmy firmą, która rozwija nowoczesne rozwiązania w obszarze baz danych oraz sztucznej inteligencji. Wykorzystujemy nowoczesne technologie do tworzenia narzędzi wspierających naszych klientów. Cenimy pozytywną atmosferę, wzajemny szacunek i zaangażowanie – to fundamenty naszego zespołu. Twój zakres obowiązków Projektowanie, rozwijanie i wdrażanie modułów oprogramowania oraz rozwiązań opartych na Pythonie i Django Optymalizacja i utrzymanie istniejącego kodu w celu poprawy wydajności i skalowalności Zapewnienie wysokiej jakości kodu poprzez testy jednostkowe, testy systemowe oraz przeglądy kodu Współpraca z zespołami technicznymi w celu zrozumienia wymagań biznesowych i proponowania efektywnych rozwiązań technicznych Tworzenie i aktualizowanie dokumentacji technicznej dotyczącej opracowanego oprogramowania i systemów Śledzenie najnowszych trendów i technologii w dziedzinie AI, w tym frameworków i bibliotek w Pythonie, oraz ich zastosowania w projektach Nasze wymagania Minimum 5 lat komercyjnego doświadczenia w programowaniu w Pythonie. Znajomość Django, Django REST Framework Biegłość w korzystaniu z systemu kontroli wersji Git Znajomość środowiska Linux + docker Praktyczna umiejętność wykorzystywania Claude Code lub innych narzędzi AI wspierających tworzenie, analizę, testowanie i refaktoryzację kodu. Znajomość struktur danych, algorytmów oraz zasad projektowania oprogramowania Umiejętność dbania o szczegóły i jakość rozwiązań oraz analizy problemów Komunikatywność i umiejętność współpracy w zespole Mile widziane: Wykształcenie wyższe w kierunku technicznym (preferowana informatyka) Doświadczenie z technologiami frontendowymi, np. React, Next.js Doświadczenie z wybranymi technologiami wykorzystywanymi w naszych projektach: Celery, Redis, OpenBao, OpenSearch, Keycloak lub Grafana. Doświadczenie w pracy z bazami danych SQL (Oracle, PostgreSQL) Doświadczenie z bazami wektorowymi, w tym projektowanie, optymalizacja i integracja takich rozwiązań w systemach AI Oferujemy Ciekawą pracę w firmie o wysokiej dynamice rozwoju Możliwość podniesienia kwalifikacji w obszarach związanych z bazami danych, bezpieczeństwem danych oraz sztuczną inteligencją Przejrzysty proces rekrutacji Benefity: Karta Multisport Prywatna opieka zdrowotna – Medicover Brak dress code’u Dofinansowanie szkoleń i kursów Elastyczny czas pracy
Technology
7N Sp. z o. o.
Python Developer
Mid
Remote
Warsaw, Poland
26,880 - 30,240 PLN
🏢 Summary: Remote 12-month contract (with possible extension) for a Python Backend Developer building and enhancing synthetic-data generation and processing solutions in an AWS-based environment. The role focuses on Python backend engineering, relational databases, REST APIs, clean code, and incremental Agile delivery. 🗂️ Requirements: Commercial Python development experience, Object-oriented programming knowledge, Software engineering best practices, Clean code principles and design patterns, Hands-on relational database experience, Practical AWS services experience, Git proficiency, Jira or similar project management tool experience, Agile/Scrum experience, Ability to work independently and collaboratively 📃 Skills: Python, AWS, SQL, Git, Jira, REST, OOP, Scrum 🏢 Description: We are looking for a Python Backend Developer to join CDI / CleanOPS team , responsible for building and enhancing solutions for synthetic data generation and processing in a modern AWS-based environment . This is a backend-focused engineering role with a strong emphasis on Python development, relational databases, software design principles, and clean coding practices . The team works in an agile setup, delivering incremental solutions that enable the safe use of realistic, non-production data for development and analytical purposes. Tech stack: Python, AWS, Relational Databases, Git, Jira, REST APIs Start: September / October 2026 Contract: Approximately 12 months with extension potential Team: CDI / CleanOPS – Data & Synthetic Data Engineering Process: 1–2 technical interviews, no coding task Location: Remote Expectations Commercial experience in Python development. Strong understanding of object-oriented programming (OOP). Solid knowledge of software engineering best practices, clean code principles, and design patterns. Hands-on experience with relational databases. Practical experience working with AWS services. Proficiency with Git version control. Experience using Jira or similar project management tools. Experience working in Agile/Scrum environments. Ability to work independently while collaborating effectively within a development team. We offer Ongoing support from a dedicated agent , taking care of your project continuity, client contact, necessary formalities, work comfort and development, Consultant Development Program – advice on growth planning based on the latest trends and market needs in IT, including consultations with agents and growth mentors, Access to 7N Learning & Development – a development and educational platform with webinars, a library of articles and industry reports, and regular invitations to one-time and recurring development events – technical, business, and lifestyle, Spectacular integration events, both for you (e.g., annual Kick-Off trip , Christmas parties, or Summer Olympics sports events) and for your loved ones (e.g., family picnics, movie premieres), Professional development not only during the project – you can get involved in knowledge transfer to others within the 7N Services offering directed at 7N clients, Relationships and access to the knowledge of the most experienced IT experts in the market – the average professional tenure of our consultants in Poland is over 10 years, A complete benefits package, including funding for medical care, life insurance, sports cards for you and your loved ones, as well as discounts in stores in Poland and abroad About 7N Constantly searching for projects, difficult rate negotiations, lack of development support – sounds familiar? At 7N, you gain not only stability of contracts but also the personal involvement of a dedicated agent who ensures your professional comfort and continuous access to development initiatives. Our mission is to provide stable and rewarding collaborations that drive your success as an IT expert and the success of our clients. We build long-lasting relationships based on Scandinavian values and 30 years of experience creating IT solutions for over 200 organizations.
Technology
INFOPLUS TECHNOLOGIES
Python Developer
Senior
Hybrid
Krakow, MA, Poland
1,000 - 1,200 PLN
🏢 Summary: Senior Python Developer role for designing secure services and APIs, leading technical design, and resolving complex production issues. The position focuses on improving reliability and resilience while collaborating across teams with strong ownership. 🗂️ Requirements: 10+ years of Python development experience, Strong Python and object-oriented programming skills, Hands-on Django or FastAPI experience, Hands-on Angular or NestJS experience, Strong RESTful API design knowledge, CI/CD and DevOps tooling experience, GCP, Kubernetes, Terraform, and Helm experience, Relational database experience, preferably PostgreSQL, Excellent spoken English communication skills 📃 Skills: Python, Django, FastAPI, TypeScript, Angular, NestJS, REST, Jenkins, GitHub, GitLab, GCP, Kubernetes, Terraform, Helm, PostgreSQL, CI/CD, DevOps, Git, OAuth2, SAML, OpenID, OpenTelemetry, OpenAPI, Claude, Codex, Go, Java, Ruff, Rye, uv 🏢 Description: Python Developer 10+ years Roles and RESPONSIBILITIES • Design and build secure application services and APIs. • Drive technical design discussions and translate requirements into robust solutions. • Troubleshoot complex production issues and lead root-cause analysis. • Improve service reliability and resilience through proactive engineering practices. • Work independently with strong ownership while collaborating across teams. SKILLS & EXPERIENCE REQUIRED • Strong Python skills (Python 3.11+ preferred) and solid object-oriented programming fundamentals. • Hands-on experience with Django/FastAPI and TypeScript frameworks (Angular/NestJS). • Excellent spoken English communication skills for day-to-day collaboration with teammates. • Strong understanding of RESTful API design best practices. • Familiarity with CI/CD and DevOps tooling (Jenkins, GitHub Actions, GitLab CI). • Experience with GCP, Kubernetes, Terraform, and Helm. • Experience with relational databases, preferably PostgreSQL. PUBLIC • Strong analytical mindset, learning agility, and a problem-solving approach. Basic understanding of open-source software licenses (e.g., Apache-2.0, MIT, GPL) and their practical implications in software delivery. • Familiarity with modern Python tooling (uv, Ruff, Rye) and Git workflows. • Familiarity with Go and Java. • Familiarity with identity protocols and standards: SAML, OAuth2, OpenID Connect. • Proficiency with AI-assisted engineering tools such as Claude Code and Codex. • Familiarity with OpenTelemetry and OpenAPI. • Visible technical engagement (blogging, GitHub portfolio, open-source contributions).