Senior Python Developer

🏢 Summary: Senior Python Developer role focused on building and maintaining high-performance backend services and REST APIs using Python and FastAPI in a fully remote environment. The position involves designing scalable solutions, integrating with internal and third-party systems, and contributing to architectural decisions and CI/CD improvements. You will work on core product services with strong ownership and emphasis on clean, testable code. 🗂️ Requirements: 5+ years commercial experience with Python, Strong production experience with FastAPI, Experience designing and building REST APIs, Knowledge of async programming, Understanding of authentication and data validation, Experience with SQL databases (PostgreSQL or MySQL), Experience with at least one NoSQL database (Redis or MongoDB), Experience with Docker, Experience with Git, Experience with CI/CD pipelines, Experience writing tests with pytest 📃 Skills: Python, FastAPI, REST, SQL, PostgreSQL, MySQL, Redis, MongoDB, Docker, Git, CI/CD, pytest, Async 🏢 Description: About us We are a fast-growing iGaming company building modern, scalable products for international markets. We work in a fully remote, international setup and value clean code, ownership and pragmatic engineering over buzzwords. About the role We are looking for a Senior Python Developer with strong FastAPI experience to join our backend team. You will be designing and developing high-performance services that power our core products, working closely with product, design and other engineers. What you'll do - design, build and maintain backend services and REST APIs using Python and FastAPI - integrate with internal and third-party systems - write clean, testable, well-documented code - participate in code reviews, technical discussions and architectural decisions - contribute to improving our development practices, CI/CD and code quality What we expect - 5+ years of commercial experience with Python - strong, hands-on experience with FastAPI in production - solid background in web development (REST API design, async, auth, data validation) - good command of SQL databases (PostgreSQL/MySQL) and at least one NoSQL store (Redis, MongoDB) - experience with Docker, Git and CI/CD pipelines - comfortable writing tests (pytest) - English at B2+ level Nice to have - experience in iGaming, fintech or other high-load industries - message queues (RabbitMQ, Kafka, Celery) - cloud platforms (AWS/GCP) - Pydantic, SQLAlchemy, Alembic - microservices and event-driven architecture What we offer - B2B contract, fully remote - competitive salary in EUR - international, English-speaking team - modern tech stack and real ownership of what you build - flexible working hours

🏢 Summary: Remote Senior Python AI Developer role focused on building and scaling an AI-driven product platform. The position involves developing backend APIs, AI/ML workflows, document processing, retrieval systems, and integrating structured data into reliable, user-facing features. You will contribute across backend and frontend to deliver explainable, production-ready AI-powered solutions. 🗂️ Requirements: 5+ years professional software engineering experience, Strong experience with Python, Experience building backend APIs, Experience with FastAPI or similar frameworks, Experience with AI/ML product workflows, Experience designing and consuming API contracts and JSON schemas, Experience with asynchronous workflows and background jobs, Experience handling retries, partial failures, and process status, Commercial experience with React, Commercial experience with TypeScript, Experience writing tests for APIs and edge cases, Experience with retrieval systems, embeddings, or LLM APIs 📃 Skills: Python, FastAPI, AI, ML, APIs, JSON, React, TypeScript, LLM, OpenAI, Gemini, Anthropic, Embeddings, Vector, Firebase, Firestore, GCP, CloudRun, CloudSQL, Neo4j 🏢 Description: We are looking for a Senior Python AI Developer to build and scale an AI driven product platform in a fully remote setup. The role focuses on developing reliable product features around AI / ML workflows, document processing, retrieval systems, structured data, and user facing outputs that need to be clear, explainable, and easy to inspect. ✅ Your responsibilities: ・Developing backend APIs in Python with FastAPI , for document upload, asynchronous processing, job status, retries, partial success, and structured results. ・Building product workflows around AI outputs, retrieval systems, document processing, and structured data . ・Connecting backend services, frontend applications, data workflows, and AI generated outputs into a reliable product experience. ・Creating user facing features that make AI outputs easier to inspect through source references, confidence signals, warnings, and clear error states. ・Working with structured data, documents, tables, financial metrics, and normalized evidence flows. ・Contributing to frontend features using React and TypeScript , especially around workflow status, evidence review, recommendations, and decision outputs. ・Writing tests around API contracts, edge cases, error cases, and realistic user workflows. 🧠 Our requirements: ・5+ years of professional software engineering experience. ・Strong experience with Python and backend API development. ・Experience with modern API frameworks, ideally FastAPI or similar. ・Good understanding of AI / ML product workflows or strong interest in building software around AI outputs. ・Experience designing and consuming API contracts, schemas, and structured JSON payloads. ・Comfort with asynchronous workflows, background jobs, retries, partial failures, and user visible process status. ・Commercial experience with modern frontend applications, preferably with React and TypeScript . ・Good testing habits, especially around edge cases, failure cases, and API behavior. ・Experience with AI / ML product workflows, including retrieval systems, embeddings, vector search, LLM based applications, or LLM APIs such as OpenAI, Gemini, Anthropic / Claude. ⭐ Nice to have: ・Experience with data heavy products, including data workflows, document processing, data normalization, or working with structured evidence. ・Experience with cloud and data infrastructure, ideally Firebase, Firestore, Google Cloud Platform, Cloud Run, Cloud SQL, vector search, or Neo4j. 🌟 What we offer: ・100% remote work. ・Opportunity to work on a modern AI / ML product platform. ・Private healthcare and Multisport. ・Life insurance. ・Real influence on technical decisions and architecture. ・Exposure to modern AI, data, and product engineering challenges. ・Collaborative and supportive team environment.

🏢 Summary: Offer for a Senior IT Developer focused on building and maintaining modern Python-based backend systems and APIs, with active involvement in GEN AI and automation projects. The role combines production-grade backend development with integration of AI solutions and LLM-based systems. The position emphasizes high code quality, performance, and collaboration on AI-driven business solutions. 🗂️ Requirements: Strong knowledge of Python, Practical experience with FastAPI, Very good knowledge of SQL, Experience in building production-grade backend solutions, Experience with GEN AI projects, Experience in designing and integrating REST APIs, Knowledge of typed Python and code quality tools, Ability to design agent logic and integrate with LLM APIs, English proficiency 📃 Skills: Python, FastAPI, Pydantic, SQLAlchemy, pandas, aiofiles, aiohttp, SQL, REST, GENAI, LLM, VertexAI, Azure, MSQL, mypy, ruff, uv 🏢 Description: Do naszego zespołu poszukujemy Senior IT Developera , który będzie rozwijać nowoczesne rozwiązania backendowe oraz aktywnie współtworzyć projekty oparte na rozwiązaniach GEN AI i automatyzacje wspierające biznes. Szukamy osoby, która bardzo dobrze zna Python ( FastAPI, Pydantic, sqlalchemy, pandas, aiofiles, aiohttp) i SQL , ma doświadczenie w budowie produkcyjnych rozwiązań oraz potrafi łączyć kompetencje developerskie z praktycznym podejściem do projektów opartych o sztuczną inteligencję. Twoje zadania Rozwój i utrzymanie aplikacji backendowych w Pythonie Projektowanie i rozwój API w FastAPI (aplikacje async, integracje IO-bound) Tworzenie i optymalizacja logiki bazodanowej w SQL Udział w realizacji i rozwoju projektów GEN AI (mile widziane doświadczenie z Vertex AI API / Azure Foundry) Integracja nowych rozwiązań z istniejącymi systemami i procesami Współpraca z biznesem i zespołami technicznymi przy projektowaniu rozwiązań Dbanie o jakość kodu, wydajność i stabilność dostarczanych aplikacji Nasze oczekiwania Bardzo dobra znajomość Python Znajomość narzędzi i praktyk podnoszących jakość kodu: typed Python (type hints, ty, mypy), uv, ruff Praktyczne doświadczenie z FastAPI Bardzo dobra znajomość SQL Doświadczenie w pracy przy projektach opartych na GEN AI (projektowanie logiki agentów, promptów, walidacja wiedzy domenowej, integracja z LLM API, budowanie customowej orkiestracja) Doświadczenie w projektowaniu i integracji REST API Samodzielność, odpowiedzialność i dobre umiejętności komunikacyjne Dobra znajomość języka angielskiego Mile widziane Znajomość MS SQL Doświadczenie z integracjami systemowymi i automatyzacją procesów Znajomość dobrych praktyk w zakresie jakości i bezpieczeństwa oprogramowania To oferujemy Zatrudnienie na podstawie umowy o pracę wraz z pakietem benefitów Szkolenia i programy rozwojowe oraz dostęp do platformy e-learningowej Program onboardingowy (wdrożeniowy) ze wsparciem Buddy’ego Udział w corocznej, ogólnofirmowej imprezie integracyjnej Pracę opartą na skandynawskiej kulturze organizacyjnej Możliwość rozwoju w ramach programu przejść wewnętrznych Benefity Dofinansowanie zajęć sportowych Prywatna opieka medyczna Dofinansowanie nauki języków Dofinansowanie szkoleń i kursów Ubezpieczenie na życie Spotkania integracyjne Siłownia w biurze Firmowa drużyna sportowa Kawa / herbata Parking dla pracowników Dodatkowe świadczenia socjalne Dofinansowanie wypoczynku Paczki świąteczne Program rekomendacji pracowników Inicjatywy dobroczynne Kantyna pracownicza Parking rowerowy Nowoczesne i ergonomiczne biuro Joga w biurze GBS/PABI/810

🏢 Summary: Senior Backend Engineer role focused on designing, developing, and deploying scalable backend services and platform infrastructure using Python and FastAPI. The position involves working with PostgreSQL, Kubernetes, and CI/CD pipelines to deliver production-ready, high-performance systems. You will collaborate with cross-functional teams to build reliable, automated, and maintainable backend solutions. 🗂️ Requirements: 5+ years backend development experience in production environments, Strong proficiency in Python and FastAPI, Experience with relational databases, preferably PostgreSQL, Experience with TypeScript and Nx for tooling or automation, Hands-on experience with Kubernetes and Helm, Experience with Docker and containerization practices, Experience designing and maintaining CI/CD pipelines, Experience with observability, logging, and monitoring tools, Strong system design and problem-solving skills 📃 Skills: Python, FastAPI, PostgreSQL, TypeScript, Nx, Kubernetes, Helm, Docker, GitHubActions, CI/CD, AWS, GCP, Azure, Monitoring, Logging 🏢 Description: Our client is a leading European tech company building scalable, high-performance backend services and platforms for enterprise and AI-driven applications. Our mission is to combine cutting-edge backend technologies with reliable, automated DevOps practices, ensuring secure, maintainable, and high-quality systems for our clients. As a Senior Backend Engineer (Python / FastAPI) , you will play a key role in designing, developing, and deploying backend services, internal tools, and platform infrastructure. You will collaborate closely with product teams, frontend engineers, and DevOps to deliver robust, scalable, and production-ready solutions. Responsibilities: Develop and maintain backend services using Python (FastAPI) Work with PostgreSQL to design schemas, optimize queries, and ensure data integrity Build and maintain internal CLI tools using TypeScript Manage a monorepo using Nx Manage deployment workflows and infrastructure using Kubernetes (K8s) and Helm Implement CI/CD pipelines using GitHub Actions for automated testing and deployment Collaborate with cross-functional teams to improve system architecture, reliability, and scalability Troubleshoot and optimize performance across backend services and infrastructure Requirements: 5+ years of experience in backend development in a production setting with real users Strong proficiency in Python , especially building APIs with FastAPI Solid experience with relational databases, preferably PostgreSQL Experience with TypeScript / Nx for tooling or automation tasks Hands-on experience with Kubernetes (K8s) and Helm Familiarity with containerization best practices (Docker) Experience designing and maintaining CI/CD pipelines (GitHub Actions or similar) Strong problem-solving skills, system design thinking, and attention to detail Exposure to observability, logging, and monitoring tools Nice to Have: Experience with cloud platforms (AWS, GCP, Azure) Exposure to observability, logging, and monitoring tools Experience integrating backend systems with frontend or AI/ML pipelines Technology Stack: Backend: Python (FastAPI), PostgreSQL DevOps / Platform: Kubernetes (K8s), Helm, CI/CD (GitHub Actions) Internal tooling: TypeScript / Nx for CLI and automation tools Other: Docker, cloud infrastructure (AWS/GCP/Azure), monitoring and observability

🏢 Summary: Senior Python Engineer role focused on building AI-powered products and internal platforms using Python and modern cloud technologies. The position involves developing secure, production-grade backend systems, contributing to frontend components, and implementing AI-driven solutions such as agentic systems and vector search. Work is delivered in agile teams with strong emphasis on cloud-native architecture and high engineering standards. 🗂️ Requirements: Bachelor’s or Master’s degree in technical field, 7+ years software development experience, Senior-level experience in large tech environment, Strong Python backend experience, Production experience with FastAPI, Hands-on experience with cloud platforms, Experience with Docker or Kubernetes, Experience with SQL and NoSQL databases, Experience with messaging queues, Practical experience with AI systems in production 📃 Skills: Python, FastAPI, Django, Vue, React, Angular, Svelte, AWS, Azure, GCP, Docker, Kubernetes, SQL, NoSQL, Pinecone, CrewAI, MCP, A2A, Microservices 🏢 Description: We’re looking for a Senior Python Engineer to help build AI‑powered products and internal platforms used across the company. You’ll join a fast‑moving engineering team where AI accelerates development, improves productivity, and shapes how new solutions are delivered. Security, compliance, and high engineering standards are essential, especially for production systems handling sensitive data. What you’ll do Build end‑to‑end features using Python (FastAPI, Django) as your primary backend stack. Contribute to frontend development when needed — experience with Vue is a plus, but React, Angular, or Svelte are also welcome. Develop cloud‑native systems on AWS, Azure, or GCP, working with containers, databases, and messaging systems. Contribute to AI initiatives, including agentic systems, vector search, and prompt‑driven workflows. Work in small, agile squads with the flexibility to move between projects as priorities evolve. Required qualifications Bachelor’s or Master’s degree in a technical field. At least 7 years of software development experience, including senior‑level work in a large tech environment. Strong backend experience with Python and FastAPI, with proven production delivery. Frontend experience is a plus (Vue preferred, but any modern JavaScript framework is welcome). Hands‑on experience with cloud platforms, Docker or Kubernetes, SQL and NoSQL databases, and messaging queues. Practical experience working with AI systems or AI‑driven features in production environments. Preferred qualifications Experience with vector databases such as Pinecone or Azure AI Search. Knowledge of prompt engineering, context management, and LLM‑driven workflows. Experience with agentic AI frameworks such as CrewAI, Microsoft Agent Framework, or AWS Agent Core. Familiarity with agentic protocols like A2A or MCP. Background in distributed systems and microservices. Experience working in agile teams. Understanding of agentic AI concepts or hands‑on exposure to agent‑based architectures. Strong grasp of engineering best practices, design patterns, and secure coding. Clear communication skills and the ability to explain technical concepts.

🏢 Summary: Senior Python Developer role focused on building and scaling high-throughput backend services for logistics and routing operations in the eCommerce industry. The position involves developing cloud-native microservices, working with geospatial and routing algorithms, and optimizing logistics efficiency using modern data and infrastructure technologies. The offer includes remote or hybrid B2B cooperation and access to additional benefits. 🗂️ Requirements: 4+ years of commercial backend development experience with Python, Experience with SQL, Knowledge of logistics domain, network analysis, and routing algorithms, Experience with geospatial data concepts and tools, Familiarity with Google Cloud Platform, Experience with Kubernetes, Experience with Terraform, Knowledge of Airflow, Understanding of microservices architecture, Knowledge of TDD and CI/CD practices, Experience with code reviews and clean code standards, Polish at native level, English at B2+ level, Higher technical education in Computer Science or related field 📃 Skills: Python, SQL, BigQuery, Dataflow, Composer, Airflow, Kubernetes, Terraform, CI/CD, Microservices, PostGIS, H3, GCP 🏢 Description: For our client, a leading player in the eCommerce industry, we are seeking a Senior Python Developer to join a talented engineering team. In this role, you'll contribute to the development of scalable backend solutions, collaborate with cross-functional teams, and have a real impact on the company's products and technology. RESPONSIBILITIES We are looking for support of Senior Software Engineer specializing in Python and routing algorithms. The specialist will be responsible for supporting the design and scaling of high-throughput services that power our first and last-mile operations. By leveraging network analysis and spatial optimization, the specialist will assist in building the next generation and directly enhancing our logistics efficiency. Stack: We are bypassing traditional, legacy GIS software in favor of cloud-native Python architectures, Big Data solutions, and modern routing APIs. Current Technology Stack used in Project: Backend & Routing: Python, Microservices, Open-source & Commercial Routing Engines. Data & Cloud: Google Cloud Platform (BigQuery, Dataflow, Composer/Airflow), SQL. Infrastructure: Kubernetes,Terraform, CI/CD pipelines REQUIREMENTS Have at least 4 years of commercial experience in backend software development using Python and SQL. Possess experience or a strong understanding of the logistics domain, network analysis, and routing (e.g., graph theory, road network modeling, Vehicle Routing Problems) Have experience with geospatial data concepts applied via code (e.g., H3/spatial indexing, clustering algorithms, PostGIS). Be familiar with cloud ecosystems (Google Cloud Platform preferred) and modern infrastructure tools (Kubernetes, Terraform, Airflow). Advocate for engineering excellence, including clean code, TDD, CI/CD, and a strong commitment to rigorous code reviews to maintain team architectural stability. Know how to design and scale a microservices-based architecture. Knowledge of Polish (native level), English (B2+ level) Have a positive attitude, excellent teamwork skills, and a higher technical education (Computer Science or related fields). NICE TO HAVE WHAT DO WE OFFER ON THIS PROJECT? Cooperation based on a B2B contract and rate: 140-160 PLN/hour remote work / Hybrid work from Warsaw (1 time per month) The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client. Events and integration meetings, as well as participation in various initiatives, e.g., sports. Access to the benefits offering (medical care,  Multisport card). WHAT DOES THE RECRUITMENT PROCESS LOOK LIKE? Application: Apply and submit your CV. After the application review, the recruiter will contact selected candidates by phone. Screening: Have a conversation with a speedapp recruiter about your experience. Next steps: The speedapp recruiter will explain the recruitment process for the specific position. The speedapp recruiter will stay in touch with you throughout the entire process. ABOUT SPEEDAPP At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them. 👉 10 years of experience 👉 +100 clients worldwide +300 hires per year 💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch.

🏢 Summary: Senior Python Backend Engineer role focused on building and scaling a platform for testing and monitoring AI agents in simulated environments. The position involves designing distributed microservices, developing high-performance REST APIs, and deploying scalable systems to production. The role requires strong architectural decision-making and experience with production-grade backend systems. 🗂️ Requirements: 7+ years of backend development experience with Python, Strong knowledge of Python 3.10+, Experience designing REST APIs, Experience building distributed systems, Experience with NoSQL databases, Experience with message queues or event-driven architectures, Experience building scalable production systems, Ability to make architectural decisions, Experience working in production environments 📃 Skills: Python, REST, Microservices, DistributedSystems, NoSQL, MongoDB, Redis, Kafka, Docker, Kubernetes, CICD, OpenTelemetry 🏢 Description: Poszukujemy Senior Python Backend Engineer do pracy przy rozwoju platformy służącej do testowania i monitorowania agentów AI w środowiskach symulacyjnych. Osoba na tym stanowisku będzie odpowiedzialna za projektowanie i rozwój skalowalnych mikroserwisów, budowę wydajnych API oraz wdrażanie rozwiązań do środowisk produkcyjnych. Rola wymaga bardzo dobrej znajomości Pythona , doświadczenia w budowie systemów rozproszonych i wysokowydajnych backendów , a także umiejętności podejmowania decyzji architektonicznych i pracy w środowisku produkcyjnym. Wymagania 7+ lat doświadczenia w backend development (Python) Bardzo dobra znajomość Python 3.10+ Doświadczenie w projektowaniu REST API i systemów rozproszonych Praca z bazami NoSQL oraz systemami kolejkowymi / event-driven Doświadczenie w budowie skalowalnych systemów produkcyjnych Komunikatywny język angielski Nice to have FastAPI, Pydantic, mypy Kafka lub inne systemy streamingowe Kubernetes, Docker, CI/CD Monitoring / observability (OpenTelemetry, metryki, SLO) Doświadczenie z systemami high-throughput Integracje z LLM / OpenAI Stack: Python, FastAPI, MongoDB, Redis, Kafka, Docker, Kubernetes, CI/CD, OpenTelemetry.

🏢 Summary: Oferta dla Senior Python Developera obejmuje rozwój i utrzymanie nowoczesnych systemów backendowych, projektowanie architektury oraz integrację usług w środowisku mikroserwisowym. Rola zakłada pracę z Pythonem, bazami danych, Dockerem i Kubernetes oraz udział w optymalizacji wydajności i mentoringu zespołu. Praca realizowana jest w modelu zdalnym z możliwością rozwoju zawodowego i udziału w innowacyjnych projektach. 🗂️ Requirements: Minimum 5 lat komercyjnego doświadczenia z Python, Znajomość Django lub FastAPI lub Flask, Doświadczenie z REST API, Znajomość SOLID, Znajomość DRY, Znajomość KISS, Doświadczenie z PostgreSQL lub MySQL, Znajomość Linux, Doświadczenie z WebSocket, Znajomość Jenkins lub GitLab CI lub GitHub Actions, Doświadczenie z architekturą mikroserwisową, Znajomość Elasticsearch, Znajomość Redis, Znajomość bezpieczeństwa aplikacji, Doświadczenie z Prometheus, Doświadczenie z Grafana, Doświadczenie z integracją systemów zewnętrznych, Podstawowa znajomość JavaScript, Umiejętność optymalizacji wydajności aplikacji backendowych, Znajomość języka angielskiego na poziomie B2 📃 Skills: Python, Django, FastAPI, Flask, REST, SQL, PostgreSQL, MySQL, Linux, WebSocket, Jenkins, GitLab, GitHub, Docker, Kubernetes, Elasticsearch, Redis, Prometheus, Grafana, JavaScript 🏢 Description: Poszukujemy doświadczonego Senior Python Developera , który dołączy do zespołu rozwijającego nowoczesne systemy backendowe. Szukamy osoby, która nie tylko tworzy wysokiej jakości kod, ale również aktywnie uczestniczy w projektowaniu architektury, podejmowaniu decyzji technicznych oraz wspiera rozwój zespołu poprzez dzielenie się wiedzą i dobrymi praktykami programistycznymi. Twoje zadania Projektowanie, rozwój oraz utrzymanie aplikacji backendowych tworzonych w języku Python. Współtworzenie architektury systemów oraz udział w analizie i doborze optymalnych rozwiązań technologicznych. Analiza wyzwań technicznych i biznesowych oraz proponowanie skutecznych rozwiązań wspierających realizację celów projektu. Tworzenie i rozwijanie testów automatycznych zapewniających wysoką jakość oprogramowania. Dbanie o jakość, wydajność, bezpieczeństwo i łatwość utrzymania rozwijanych aplikacji. Projektowanie oraz optymalizacja relacyjnych baz danych i zapytań SQL. Przygotowywanie oraz utrzymywanie środowisk opartych o Docker i Kubernetes. Integracja aplikacji z zewnętrznymi systemami i usługami z wykorzystaniem REST API oraz systemów kolejkowych. Tworzenie i aktualizacja dokumentacji technicznej oraz architektonicznej. Współpraca z interesariuszami przy analizie wymagań oraz wdrażaniu nowych funkcjonalności. Wsparcie merytoryczne zespołu, mentoring mniej doświadczonych programistów oraz dzielenie się wiedzą. Identyfikowanie potencjalnych ryzyk technicznych i rekomendowanie działań ograniczających ich wpływ na projekt. Analiza i optymalizacja wydajności aplikacji backendowych oraz ich infrastruktury. Nasze oczekiwania Minimum 5 lat komercyjnego doświadczenia w tworzeniu aplikacji w języku Python. Bardzo dobra znajomość przynajmniej jednego z frameworków: Django, FastAPI lub Flask. Doświadczenie w projektowaniu, implementacji i rozwijaniu usług REST API. Znajomość wzorców projektowych oraz zasad tworzenia czystego kodu, takich jak SOLID, DRY i KISS. Praktyczne doświadczenie w projektowaniu relacyjnych baz danych oraz pracy z PostgreSQL lub MySQL. Dobra znajomość środowiska Linux i pracy z systemami opartymi na tym systemie operacyjnym. Doświadczenie w implementacji komunikacji z wykorzystaniem WebSocket. Znajomość narzędzi takich jak Jenkins, GitLab CI lub GitHub Actions. Doświadczenie w projektowaniu i rozwijaniu aplikacji opartych na architekturze mikroserwisowej. Praktyczna znajomość technologii NoSQL, w szczególności Elasticsearch oraz Redis. Znajomość dobrych praktyk z zakresu bezpieczeństwa aplikacji. Doświadczenie w monitorowaniu aplikacji i infrastruktury z wykorzystaniem narzędzi takich jak Prometheus i Grafana. Doświadczenie w integracji z systemami zewnętrznymi. Podstawowa znajomość JavaScript. Umiejętność diagnozowania problemów wydajnościowych i optymalizacji działania aplikacji backendowych. Znajomość języka angielskiego na poziomie B2. Oferujemy Pracę w modelu zdalnym Możliwość rozwoju zawodowego oraz udziału w innowacyjnych projektach. Preferencyjne pakiety do wykupienia w programach Multisport oraz Lux Med. Przyjazną atmosferę pracy i dużą samodzielność w realizacji powierzonych zadań. Zainteresowała Cię ta oferta? Prześlij swoje CV i porozmawiajmy o szczegółach. Chętnie opowiemy więcej o projekcie oraz odpowiemy na wszystkie Twoje pytania :)

🏢 Summary: Senior Developer role focused on building and maintaining Python-based web applications using FastAPI and React in a hybrid work model. The position requires strong backend expertise in Python and APIs, along with solid frontend experience in React and modern JavaScript ecosystems. You will work on scalable applications, database integrations, CI/CD pipelines, and testing within an international environment. 🗂️ Requirements: 8+ years of professional software development experience, Strong expertise in Python and FastAPI, Experience with API development and web services, Experience with SQLAlchemy or similar ORM tools, Strong knowledge of data structures and algorithms, Understanding of space-time complexity, Knowledge of relational and NoSQL databases, Experience with CI/CD pipelines, Experience with unit testing, Experience with ReactJS and modern JavaScript/TypeScript, Experience with cross-browser compatible frontend development, Experience with state management libraries such as Redux or MobX, Understanding of browser rendering and performance optimization 📃 Skills: Python, FastAPI, SQLAlchemy, ReactJS, ReactQuery, NodeJS, JavaScript, TypeScript, HTML, CSS, Redux, MobX, Jest, Cypress, MaterialUI, CI/CD, APIs, SQL, NoSQL 🏢 Description: We are looking for a Senior Developer (Python, FastAPI, React) for an immediate opening. Strong expertise in Python and FastAPI is required; intermediate React skills are acceptable.” Experience Level: 8+ Years Working mode: Hybrid mode from Warsaw or Wroclaw (work for 2-3 days in a week from office) Job Description: Python Web Application Development: Experience with API development, related services, and controllers Database connectivity modules (preferably with FAST API, SQLAlchemy, or similar) Core Python Skills: Solid grasp of Python f undamentals Proficiency in data structures and algorithms Understanding of space-time complexity Technical Proficiencies: Strong understanding of APIs Fundamentals of Relational and NoSQL Databases Experience with CI/CD Pipelines Proficiency in Unit Testing React Experience: ReactJS, React Query, NodeJS, JavaScript, typescript, CSS, HTML Testing tools like Jest, Cypress, Material UI. Experience with HTML, CSS, and writing cross-browser-compatible code. Experience with popular ReactJS workflows (such as Redux or MobX) Experience writing unit tests using JavaScript testing frameworks Good understanding of browser rendering behavior and performance optimization Benefits ✅ Stable long-term cooperation with opportunity for extension Opportunity to work with modern technologies in an international environment Professional growth and continuous development opportunities Participation in challenging and impactful projects 📩 If you’re interested and meet the qualifications, please send your CV at alina.pchelnikova@dcvtechnologies.co.uk

🏢 Summary: Senior Python Developer role focused on building and scaling the back-end of an AI-driven quantitative investment platform using FastAPI and AWS. The position involves developing secure, high-performance RESTful services and contributing to a full-stack AI-native feature team. The goal is to deliver a robust, scalable system supporting intelligent and transparent investment solutions. 🗂️ Requirements: Bachelor’s degree in Computer Science, Engineering or related field or equivalent experience, 3+ years of back-end development experience, Proven experience with Python, Commercial experience with FastAPI, Experience building RESTful APIs, Strong knowledge of server-side architecture, Experience with database management, Hands-on experience with AWS, Knowledge of security and data protection practices, Experience with Git 📃 Skills: Python, FastAPI, AWS, REST, API, Git, SQL, GenAI 🏢 Description: We are looking for a dynamic, hands-on Senior Python Developer to join a full-stack AI native feature team for building a cutting-edge quantitative investment platform. The project aims to deliver a groundbreaking, AI-driven investment ecosystem that revolutionizes the entire investment process through an intuitive and human-centric design approach. This initiative transcends mere digitization, aiming to redefine investment decision-making with systematic, transparent and intelligent solutions. The platform is designed with the versatility to cater to a wide array of users and offers transformative capabilities for the investment landscape. Responsibilities Design, develop, and maintain robust and scalable back-end systems using FastAPI and Python Implement security and data protection measures to ensure the integrity and confidentiality of data Optimize applications for maximum speed and scalability Develop and maintain RESTful APIs for seamless communication between different components of the application Conduct code reviews and provide mentorship to ensure code quality and adherence to best practices Troubleshoot and resolve complex technical issues and bugs in a timely manner Stay up-to-date with the latest industry trends and technologies to continuously improve development processes and system performance Requirements Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience 3+ years of proven experience as a Back-End Developer with a focus on FastAPI and Python Strong understanding of server-side logic and database management Expertise in Amazon Web Services Knowledge of FastAPI and REST API Background in Gen AI Assisted Development Familiarity with version control systems such as Git Excellent problem-solving skills and attention to detail Strong communication and collaboration skills Ability to work independently and as part of a team in a fast-paced environment B1+ English level proficiency Nice to have Skills in Cursor Proficiency in ReactJS We offer/Benefits We gather like-minded people: Engineering community of industry professionals Friendly team and enjoyable working environment Flexible schedule and opportunity to work remotely within Poland Chance to work abroad for up to 60 days annually Business-driven relocation opportunities We provide growth opportunities: Outstanding career roadmap Leadership development, career advising, soft skills, and well-being programs Certification (GCP, Azure, AWS) Unlimited access to LinkedIn Learning, Get Abstract, Cloud Guru English classes We cover it all: Stable income (Employment Contract or B2B) Participation in the Employee Stock Purchase Plan Benefits package (health insurance, multisport, shopping vouchers) Strategically located offices featuring entertainment and relaxation zones, table tennis and football, free snacks, fantastic coffee, and more Referral bonuses Corporate, social and well-being events Please, note: The set of bonuses might vary based on the role you apply for – specifics will be discussed with our recruiter during the general interview. We will reach out to selected candidates exclusively. EPAM is a leading global provider of digital platform engineering and development services. We are committed to having a positive impact on our customers, our employees, and our communities. We embrace a dynamic and inclusive culture. Here you will collaborate with multi-national teams, contribute to a myriad of innovative projects that deliver the most creative and cutting-edge solutions, and have an opportunity to continuously learn and grow. No matter where you are located, you will join a dedicated, creative, and diverse community that will help you discover your fullest potential.