June 9, 2026
Principal Software Architect / Tech Lead (Python · FastAPI · GCP)
Senior • Remote
30,000 - 40,000 PLN/mo
Warsaw, Poland
Principal Software Architect / Tech Lead (Python · FastAPI · GCP)
Firma: ARX Consilium / OC-ARX Tryb pracy: 100% zdalnie (PL/EU) Forma współpracy: B2B / kontrakt długofalowy Wynagrodzenie: 30 000–40 000 PLN netto + opcjonalny pakiet udziałów (equity)
O projekcie
Budujemy platformę klasy AI-driven decision platform do zaawansowanej analizy danych prawnych i wspierania procesów decyzyjnych. To nie kolejny prosty SaaS ani generyczne MVP — system działa już produkcyjnie. Rosnąca złożoność (podejścia grafowe, orkiestracja LLM, analityka real-time) wymaga jednak wejścia na wyższy poziom architektoniczny.
Szukamy lidera technicznego, który przejmie ster nad stroną technologiczną aplikacji, uporządkuje istniejące rozwiązania i przygotuje platformę pod globalne skalowanie.
Zakres odpowiedzialności
Projektowanie i rozwój architektury systemu end-to-end, ze szczególnym naciskiem na wydajność, asynchroniczność i bezpieczeństwo.
Rola hands-on architect / tech lead — podejmowanie kluczowych decyzji technologicznych, projektowanie API oraz samodzielne wdrażanie krytycznych elementów systemu (proof of concept, core refactor).
Refaktoryzacja i skalowanie istniejącego backendu pod kątem modularności, pracy wielu użytkowników jednocześnie oraz stabilnych środowisk test/prod.
Orkiestracja warstwy AI — praca z mechanizmami LLM, systemami agentowymi i bazami wektorowymi, z dbałością o niskie opóźnienia, streaming danych i optymalne zarządzanie kontekstem.
Wdrażanie najwyższych standardów inżynierskich: automatyzacja release’ów, CI/CD, testy (jednostkowe, integracyjne, obciążeniowe) oraz kultura code review.
Wymagania (must-have)
Minimum 8 lat komercyjnego doświadczenia w inżynierii oprogramowania, w tym udokumentowana rola architekta lub tech leada w złożonych systemach rozproszonych.
Ekspercka znajomość Pythona oraz frameworka FastAPI (programowanie asynchroniczne, optymalizacja zapytań, budowa wysokowydajnych API).
Głębokie, praktyczne doświadczenie z Google Cloud Platform (GCP) — warunek konieczny.
Rozumienie specyfiki systemów AI-driven: produkcyjne wdrażanie LLM, integracja z modelami AI, praca na dużych zbiorach danych.
Myślenie analityczne, umiejętność mapowania złożonych procesów biznesowych na architekturę techniczną oraz jasnego uzasadniania decyzji.
Mile widziane
Bazy grafowe (np. Neo4j) i systemy reprezentacji wiedzy (Knowledge Graphs)
Bazy wektorowe (Vector DBs — np. Pinecone, Qdrant, Weaviate)
Narzędzia do orkiestracji AI/LLM (np. LangChain, LlamaIndex)
Architektura event-driven oraz systemy kolejkowe (Kafka, RabbitMQ, Pub/Sub)
Konteneryzacja i orkiestracja (Docker, Kubernetes)
Doświadczenie w domenach o wysokiej odpowiedzialności biznesowo-prawnej (FinTech, LegalTech, MedTech) wymagających audytowalności decyzji
Kogo NIE szukamy
Architektów „gabinetowych” — szukamy lidera, który nie boi się ubrudzić rąk kodem i potrafi sam zrobić core’owy refaktor, a nie tylko rysować diagramy w Miro.
„Seniorów” skupionych wyłącznie na przepychaniu tasków z Jiry.
Osób bez silnego, praktycznego doświadczenia z chmurą publiczną (GCP) i systemami produkcyjnymi o dużym natężeniu ruchu.
Co oferujemy
Realny, decydujący wpływ na architekturę i kierunek rozwoju zaawansowanej platformy.
Brak korporacyjnego betonu, płaska struktura i szybkie procesy decyzyjne.
Wyzwania techniczne, przy których się nie znudzisz (grafy, AI, asynchroniczność, wysoka skala).
Długofalową, stabilną współpracę opartą na partnerstwie i zaufaniu.
Proces rekrutacji
Krótka kawa online (15–20 min) — poznajmy się i sprawdźmy, czy nadajemy na tych samych falach.
Rozmowa techniczna (system design, FastAPI, GCP, architektura) — konkretna dyskusja inżynier z inżynierem, bez algorytmów rodem z kosmosu.
Decyzja i oferta.
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🏢 Summary: Lead the backend and AI architecture for a Generative AI Quality platform, driving Python/FastAPI services, LLM integrations and Azure-based cloud infrastructure. The role combines hands-on development, technical leadership and compliance oversight in a GxP-regulated environment. You will mentor engineers, manage CI/CD and API ecosystems, and coordinate cross-functional stakeholders. 🗂️ Requirements: Proficiency in Python, JavaScript and SQL, Experience with FastAPI and Git, Strong knowledge of software quality practices (testing, linting, pre-commit workflows), Expertise in prompt engineering and LLM orchestration with multiple providers, Experience with AI agent orchestration frameworks (e.g., LangChain, AutoGen), Knowledge of Azure services (App Service, PostgreSQL, Blob Storage), Familiarity with Azure API Management, Key Vault and Container Registry, Experience with CI/CD pipelines using Azure DevOps, Understanding of authentication models (OBO, Service Principal), Experience with observability tools such as MLFlow, Frontend development experience with React (or Vue), JavaScript, HTML/CSS, Adherence to GxP and Responsible AI compliance requirements 📃 Skills: Python, JavaScript, SQL, FastAPI, Git, GenAI, LLM, LangChain, AutoGen, Azure, APIM, PostgreSQL, BlobStorage, KeyVault, ContainerRegistry, AzureDevOps, CI/CD, MLFlow, React, HTML, CSS, Databricks 🏢 Description: We are looking for a Lead Python Developer to join the Quality team, a Generative AI platform initiative aimed at transforming Quality processes through AI-powered solutions. Responsibilities Lead the backend architecture and development of Python/FastAPI services, including code reviews, engineering standards and technical decision-making Drive GenAI capabilities, including prompt engineering, LLM orchestration and integrations with multiple LLM providers Design, optimize and maintain production-grade prompts in a GxP-regulated environment Manage API design and lifecycle using Azure API Management (APIM) and OpenAPI specifications Oversight of Azure services including App Service, PostgreSQL, Blob Storage, Key Vault and Container Registry Maintenance of CI/CD pipelines and deployments through Azure DevOps across Dev, QA and Prod environments Implementation and support of LLM integrations, authentication models (OBO, Service Principal) and observability tools such as MLFlow Technical leadership for the React frontend application, including architecture, component management, versioning and deployments Monitor application performance, troubleshoot issues and maintain audit and operational visibility Serve as the primary technical lead for the WriteItt Gateway squad and coordinate with Platform, Cloud/DevOps and business stakeholders Mentor developers and lead onboarding activities, including architecture and codebase walkthroughs Ensure adherence to GxP, Responsible AI and other mandatory compliance requirements Requirements Proficiency in Python, JavaScript and SQL Skills in FastAPI, Git and software quality practices including testing, linting and pre-commit workflows Expertise in GenAI capabilities including prompt engineering and LLM orchestration with multiple providers Capability to work with AI agent orchestration frameworks (e.g., LangChain, AutoGen or similar) to support multi-step agentic workflows such as gathering investigation data, conducting risk analysis and drafting deviation reports Knowledge of Azure services including App Service, PostgreSQL and Blob Storage Familiarity with Azure API Management (APIM), Key Vault and Container Registry Background in CI/CD pipelines and deployments through Azure DevOps Understanding of authentication models (OBO, Service Principal) and observability tools such as MLFlow Showcase of frontend development using JavaScript, HTML/CSS and React or Vue Nice to have Familiarity with Databricks We offer 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.
Technology
EPAM Systems
Lead Python Developer
Senior
Remote
Lodz, Poland
🏢 Summary: Lead Python Developer role within a Generative AI platform initiative focused on transforming Quality processes through AI-powered solutions. The position involves leading backend architecture, driving GenAI and LLM integrations, overseeing Azure cloud services and CI/CD pipelines, and providing technical leadership across frontend and backend systems in a GxP-regulated environment. The role combines hands-on development, cloud architecture, compliance oversight and team leadership. 🗂️ Requirements: Proficiency in Python, JavaScript and SQL, Experience with FastAPI and Git, Strong knowledge of software quality practices (testing, linting, pre-commit workflows), Expertise in prompt engineering and LLM orchestration with multiple providers, Experience with AI agent orchestration frameworks (e.g., LangChain, AutoGen), Knowledge of Azure services (App Service, PostgreSQL, Blob Storage), Familiarity with Azure API Management (APIM), Key Vault and Container Registry, Experience with CI/CD pipelines using Azure DevOps, Understanding of authentication models (OBO, Service Principal), Experience with observability tools such as MLFlow, Frontend development experience with JavaScript, HTML/CSS and React or Vue, Ability to work in a GxP-regulated environment and follow Responsible AI requirements 📃 Skills: Python, JavaScript, SQL, FastAPI, Git, LangChain, AutoGen, Azure, AppService, PostgreSQL, BlobStorage, APIM, KeyVault, ContainerRegistry, AzureDevOps, CI/CD, MLFlow, React, Vue, HTML, CSS, OpenAPI, LLM, Databricks 🏢 Description: We are looking for a Lead Python Developer to join the Quality team, a Generative AI platform initiative aimed at transforming Quality processes through AI-powered solutions. Responsibilities Lead the backend architecture and development of Python/FastAPI services, including code reviews, engineering standards and technical decision-making Drive GenAI capabilities, including prompt engineering, LLM orchestration and integrations with multiple LLM providers Design, optimize and maintain production-grade prompts in a GxP-regulated environment Manage API design and lifecycle using Azure API Management (APIM) and OpenAPI specifications Oversight of Azure services including App Service, PostgreSQL, Blob Storage, Key Vault and Container Registry Maintenance of CI/CD pipelines and deployments through Azure DevOps across Dev, QA and Prod environments Implementation and support of LLM integrations, authentication models (OBO, Service Principal) and observability tools such as MLFlow Technical leadership for the React frontend application, including architecture, component management, versioning and deployments Monitor application performance, troubleshoot issues and maintain audit and operational visibility Serve as the primary technical lead for the WriteItt Gateway squad and coordinate with Platform, Cloud/DevOps and business stakeholders Mentor developers and lead onboarding activities, including architecture and codebase walkthroughs Ensure adherence to GxP, Responsible AI and other mandatory compliance requirements Requirements Proficiency in Python, JavaScript and SQL Skills in FastAPI, Git and software quality practices including testing, linting and pre-commit workflows Expertise in GenAI capabilities including prompt engineering and LLM orchestration with multiple providers Capability to work with AI agent orchestration frameworks (e.g., LangChain, AutoGen or similar) to support multi-step agentic workflows such as gathering investigation data, conducting risk analysis and drafting deviation reports Knowledge of Azure services including App Service, PostgreSQL and Blob Storage Familiarity with Azure API Management (APIM), Key Vault and Container Registry Background in CI/CD pipelines and deployments through Azure DevOps Understanding of authentication models (OBO, Service Principal) and observability tools such as MLFlow Showcase of frontend development using JavaScript, HTML/CSS and React or Vue Nice to have Familiarity with Databricks We offer 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.
Technology
RITS Professional Services
Principal Software Engineer
Senior
Remote
Warsaw, MZ, Poland
🏢 Summary: Remote B2B Principal Software Engineer role focused on .NET and Azure within an existing US-based project (Sightline). The position emphasizes strong technical expertise combined with practical experience in Generative AI solutions. The role requires working in complex environments with high communication standards. 🗂️ Requirements: Strong experience with .NET, Strong experience with Azure, Practical experience with Generative AI, Fluent English (C1 level), Experience in large, complex organizations 📃 Skills: .NET, Azure, GenAI, C#, AI 🏢 Description: Principal Software Engineer (.NET/Azure) Poziom: Senior Manager / Director (12+ lat doświadczenia ogólnego) Model pracy: 100% zdalnie (standardowo 9:00–17:00, wymagana elastyczność na strefę US) O projekcie i roli: Dołączysz do działu Global Tax Technology , gdzie będziesz pracować nad innowacyjnymi rozwiązaniami dla usług doradztwa podatkowego i rozwojem autorskiej platformy Sightline . Rola łączy obowiązki aktywnego Full-stack Developera, IT Architekta / Tech Leada oraz Team Leada . Będziesz mieć bezpośredni wpływ na strategiczne kierunki technologiczne oraz odpowiedzialność menedżerską za dany obszar platformy. Projekt kładzie ogromny nacisk na wykorzystanie narzędzi GenAI oraz technik "agentic development". Kluczowe obowiązki: End-to-end design (całe komponenty i pojedyncze funkcjonalności), rozwój i wdrażanie rozwiązań z wykorzystaniem AI-driven tech. Zarządzanie zespołem i mentoring (Software Developers, Quality Analysts), wsparcie w code review i testach. Proponowanie usprawnień standardów technicznych, procesów dostarczania (DevOps) i nadzór nad compliance / security. Współpraca z Product Ownerami/Managerami w zakresie roadmapy produktu. Wsparcie L3 (zarządzanie incydentami i problemami na środowisku produkcyjnym). Wdrażanie i promowanie najnowszych rozwiązań z obszaru AI (frameworki, platformy agentowe) w codziennej pracy zespołu. Wymagania (Must have): 12+ lat doświadczenia przy projektach software'owych w globalnym, złożonym środowisku korporacyjnym (w tym praca bezpośrednio z biznesem i stakeholderami). 5+ lat na stanowisku IT Architect / Tech Lead , z wykorzystaniem wzorców i praktyk: Agile, DDD, microservices, CQRS, CLEAN i SOLID. Biegłość w tworzeniu aplikacji webowych: C#/.NET, Python oraz technologie frontendowe ( React, Angular lub Vue.js ). Biegłość w chmurze MS Azure i M365 (Functions, Service Bus / Event Hub, App Services, SQL/MongoDB). Praktyczne doświadczenie z narzędziami wspieranymi przez AI (GitHub Copilot, Cursor, OpenAI Codex, Claude Code, Gemini CLI, Antigravity itp.). Doświadczenie z TDD / spec-driven development (Playwright, MS Test, Fluent, NUnit, K6, SpecKit, BMAD itp.). Doświadczenie z technologiami DevOps . Angielski na poziomie B2+ . Proces rekrutacyjny: Etap 1 (60 min): Wprowadzenie, sprawdzenie kompetencji miękkich, j. angielskiego oraz weryfikacja techniczna z programowania. Etap 2 (45-60 min): Weryfikacja kompetencji Tech Lead / Architect. Etap 3 (45-60 min): Fit for team (sprawdzenie dopasowania do zespołu) Ta rola nie jest dla Ciebie, ale masz znajomego, który by się sprawdził? Poleć go i zgarnij nawet 5000 zł. Referral Program: Talent from your network
Technology
Senovo-It
Principal Software Engineer / Tech Lead (.NET / Azure / AI)
Senior
Remote
Warsaw, Poland
25,000 - 28,000 PLN
🏢 Summary: Hands-on Principal Software Engineer / Tech Lead role focused on architecting and developing AI-driven solutions for a global tax consulting platform. The position combines technical leadership with active backend and AI development, shaping microservices-based architecture and GenAI-enabled engineering practices. Remote role from Poland requiring close collaboration with product and engineering teams. 🗂️ Requirements: 9+ years software engineering experience in complex global environments, 5+ years experience as Tech Lead or Architect with hands-on coding, Strong expertise in C# and .NET, Experience with Python in AI-related use cases, Frontend experience with React, Angular, or Vue.js, Experience with Microsoft Azure (Functions, Service Bus/Event Hub, App Services, SQL/MongoDB), Strong knowledge of microservices architecture, DDD, CQRS, SOLID, Clean Architecture, Experience with DevOps practices (CI/CD, deployment, monitoring), Hands-on experience with AI development tools (e.g., GitHub Copilot, OpenAI), Fluent English (C1 level) 📃 Skills: C#, .NET, Python, React, Angular, Vue, Azure, SQL, MongoDB, Microservices, DDD, CQRS, SOLID, CI/CD, DevOps, GenAI, OpenAI, GitHubCopilot 🏢 Description: We are looking for a highly experienced Principal Software Engineer / Tech Lead to join a global engineering team working on the Sightline platform – an in-house solution supporting tax consulting services worldwide. This is a hands-on leadership role , combining responsibilities across architecture, software engineering, and team leadership . You will play a key role in shaping the technical direction of AI-driven solutions, while actively contributing to development. You will work on cutting-edge AI-powered systems , leveraging GenAI tools and agent-based development approaches to build scalable, high-quality, and business-oriented solutions Location: Remote from Poland Language: Polish and English Key Responsibilities Lead the end-to-end design, development, and deployment of new platform components and features Define and drive architecture decisions (microservices, DDD, CQRS, Clean Architecture) Collaborate closely with Product Owners and stakeholders to align technical solutions with business needs Lead and mentor software engineers and QA teams , ensuring high engineering standards Conduct code reviews and provide technical guidance , promoting best practices across teams Ensure compliance with platform standards, security, and performance requirements Support production environments (L3 support) – troubleshooting and resolving complex issues Drive adoption of AI tools and GenAI practices in the development lifecycle Stay up to date with the latest AI frameworks, agent platforms, and engineering practices Requirements (Must Have) 9 to 12+ years of experience in software engineering within complex, global environments 5+ years as Tech Lead / Architect , with strong hands-on experience Strong expertise in C# / .NET (core backend technology) Experience with Python (especially in AI-related use cases) Frontend experience with React, Angular, or Vue.js Strong experience with Microsoft Azure (Functions, Service Bus/Event Hub, App Services, SQL/MongoDB) Solid understanding of microservices architecture, DDD, CQRS, SOLID, Clean Architecture Experience with DevOps practices and tools (CI/CD, deployment, monitoring) Hands-on experience with AI-enabled development tools (e.g. GitHub Copilot, OpenAI, etc.) Strong communication skills and ability to work with senior stakeholders and business teams Fluent English ( C1 level )