Back End Engineer (Python & TypeScript)/Fullstack

🏢 Summary: Senior Backend Developer (Python/TypeScript) for a fully remote B2B contract, responsible for designing and maintaining scalable backend applications and APIs. The role involves architecture design, performance optimization, CI/CD support, and close collaboration with product, frontend, and DevOps teams. Competitive hourly rate with flexible remote work within Poland and a streamlined recruitment process. 🗂️ Requirements: Minimum 6 years of backend development experience, Very good knowledge of Python, Very good knowledge of TypeScript, Experience with FastAPI, Django, Flask, or NestJS, Experience designing and implementing REST and/or GraphQL APIs, Knowledge of relational databases (PostgreSQL or MySQL), Experience with Git, Knowledge of testing, security, and code quality best practices, Experience working in Agile/Scrum, English proficiency at minimum B2 level 📃 Skills: Python, TypeScript, FastAPI, Django, Flask, NestJS, REST, GraphQL, PostgreSQL, MySQL, Git, Agile, Scrum 🏢 Description: Charakterystyka oferty: Miejsce pracy: 100% zdalnie z terytorium Polski Start: ASAP (max. 30 dni kalendarzowych wypowiedzenia) Współpraca: B2B z ITFS Wynagrodzenie: 160-200 zł/h + VAT (bez płatnych urlopów) Godziny pracy: standardowe, core hours 10:00-15:00, okazjonalne spotkania z USA w godzinach popołudniowych/wieczornych Proces rekrutacyjny: krótka rozmowa z ITFS (ok. 15 min) ➡ max. 2 rozmowy miękko-techniczne z Klientem ➡ decyzja Wymagania: Min. 6 lat doświadczenia w rozwoju oprogramowania backendowego na analogicznym stanowisku Bardzo dobra znajomość Python oraz TypeScript Doświadczenie w pracy z nowoczesnymi frameworkami , np. FastAPI, Django, Flask, NestJS Doświadczenie w projektowaniu i implementacji API ( REST i/lub GraphQL ) Dobra znajomość relacyjnych baz danych (np. PostgreSQL, MySQL) i zagadnień związanych z modelowaniem danych Doświadczenie w pracy z Gitem Znajomość dobrych praktyk w zakresie testowania, bezpieczeństwa i jakości kodu Umiejętność pracy w Agile/Scrum Znajomość j. angielskiego na poziomie min. B2 Mile widziane: Doświadczenie z React.js lub Vue.js Znajomość architektury mikroserwisowej Doświadczenie z rozwiązaniami chmurowymi (AWS, Azure, GCP) Znajomość Dockera i narzędzi CI/CD Doświadczenie w pracy z systemami opartymi o zdarzenia (event-driven architecture, messaging systems) Znajomość narzędzi monitoringu i obserwowalności aplikacji Doświadczenie w pracy z rozwiązaniami AI/LLM Zadania: Projektowanie, rozwój i utrzymanie skalowalnych aplikacji i usług backendowych w środowisku produkcyjnym Tworzenie, rozwijanie API i integracji z systemami zewnętrznymi Projektowanie architektury aplikacji, modeli danych i rozwiązań zapewniających wysoką wydajność i niezawodność Współpraca z zespołem produktowym, frontendowym i DevOps Optymalizacja wydajności aplikacji, diagnozowanie problemów i usuwanie błędów Tworzenie i utrzymywanie testów automatyzujących, dbanie o jakość kodu Udział w code review i współtworzenie standardów Wspieranie procesów CI/CD i wdrożeń aplikacji Oferujemy: Przejrzyste warunki współpracy w firmie o pewnej i stabilnej pozycji rynkowej oraz możliwość rozwoju Możliwość skorzystania z benefitów (dofinansowanie do pakietu medycznego Enel-med i Multisport oraz podstawowy pakiet księgowy - darmowy do trzech faktur miesięcznie) ID: P3436

🏢 Summary: Senior Fullstack TypeScript Engineer role in a fintech environment focused on building and maintaining scalable, secure full-stack applications with a backend emphasis (Node.js) and React frontend. The position involves system and API design, real-time components, testing, and production support, using modern engineering practices including AI-assisted development. It is a hands-on role centered on architecture quality, performance, and reliable delivery. 🗂️ Requirements: Strong experience with Node.js, TypeScript, JavaScript (ES6+), React, Experience building full-stack web applications, Solid understanding of REST APIs and authentication, Knowledge of scalable system design (stateless services, caching, queues, performance), Experience with relational databases (PostgreSQL or MySQL), Experience with unit, integration, and E2E testing, Understanding of performance optimisation and debugging, Ability to evaluate technical trade-offs and system design decisions, Experience using AI tools in development workflows with critical validation of outputs, Professional English proficiency 📃 Skills: TypeScript, Node.js, JavaScript, React, REST, PostgreSQL, MySQL, SQL, Testing, CI/CD, Authentication, Caching, Queues, AI, Git, HTML, CSS 🏢 Description: Senior Fullstack TypeScript Engineer – Fintech London / Remote | B2B | Competitive package Our client is a UK-based fintech company with 25+ years of experience delivering innovative solutions for repo and securities financing markets. Their platform connects major market participants and provides real-time services that enable efficient and accurate trading. We are looking for a Senior Fullstack TypeScript Engineer to join our client’s engineering team. This role has a strong backend focus (approximately 60% backend / 40% frontend) and involves working across both frontend and backend systems, contributing to scalable architecture, feature delivery, and engineering best practices. This is a hands-on, delivery-focused role with a strong emphasis on system design, quality, and modern engineering practices, including AI-assisted development workflows. Responsibilities Build and maintain Fullstack applications using TypeScript (Node.js + React) Design and implement features across frontend and backend systems Participate in API and system design discussions Contribute to decisions around REST APIs, authentication, and architecture patterns Build secure, scalable, and maintainable systems Work with real-time and event-driven components where applicable Write and maintain unit, integration, and end-to-end tests Support production systems and assist in incident resolution when needed Participate in code reviews and contribute to engineering standards Use AI-assisted tools (e.g., Cursor, GitHub Copilot) to improve productivity, debugging, testing, and refactoring, while critically validating outputs Requirements Strong experience with Node.js, TypeScript, JavaScript (ES6+), React Experience in building full-stack web applications Solid understanding of REST APIs, authentication, and API design Knowledge of scalable system design (stateless services, caching, queues, performance) Experience with relational databases (PostgreSQL / MySQL) Experience with testing (unit, integration, E2E) Understanding of performance optimisation and debugging Ability to evaluate technical trade-offs and system design decisions Experience working in agile, collaborative teams Strong communication and ownership mindset English – professional working proficiency AI & Engineering Mindset Comfortable using AI tools in daily development work Able to: validate AI-generated code for security, maintainability, and performance use AI for debugging, refactoring, and test generation critically assess outputs instead of blindly accepting suggestions Awareness of secure usage of AI tools and data handling practices Nice to have AWS / cloud experience Docker / Terraform Event-driven architecture GraphQL experience State management (Redux / Zustand) Tailwind / Styled Components Observability (logging, metrics) Load / performance testing Data visualization (D3.js)

🏢 Summary: Backend-focused Fullstack Engineer role (80% backend) focused on designing and maintaining scalable, secure backend services and APIs for data-driven and integration platforms. The position involves working with distributed systems, system integrations, and cloud infrastructure while contributing to frontend development with React. You will own features end-to-end from design to deployment in a distributed international team. 🗂️ Requirements: ~5 years backend experience with Node.js and TypeScript, Strong knowledge of relational databases, Experience building REST APIs and distributed services, Hands-on experience with cloud infrastructure, Experience with Kubernetes, Practical experience with React, Experience with system integrations 📃 Skills: TypeScript, Node.js, React, PostgreSQL, GCP, Kubernetes, REST, SQL 🏢 Description: Fullstack Engineer (Backend-Focused) We’re looking for a Backend-heavy Fullstack Engineer (80% backend, 20% frontend) to join a distributed team building critical data and integration platforms. What You’ll Do Design and maintain scalable, secure backend services and APIs Work on system integrations and data-centric platforms Collaborate across frontend, backend, and data teams Take full ownership of features from design to deployment Tech Stack TypeScript / Node.js , React Relational databases (PostgreSQL or similar) Cloud infrastructure (GCP), Kubernetes REST APIs, system integrations, distributed services Who We’re Looking For ~5 years backend experience with Node.js / TypeScript Strong relational database knowledge Experience with React (frontend contribution) Cloud and Kubernetes experience Excellent communication skills , ownership, and proactive collaboration Comfortable working in distributed international teams

🏢 Summary: The offer is for a Full Stack Software Engineer to design and develop scalable backend services, RESTful APIs, and modern frontend applications using TypeScript and React or Angular. The role involves working with Python, PostgreSQL, and AWS-based cloud environments to deliver reliable, high-performance solutions. It also includes contributing to CI/CD pipelines and cloud-native infrastructure setup. 🗂️ Requirements: Strong experience with TypeScript, Proficiency in React or Angular, Backend and RESTful API development experience, Experience with Python, Knowledge of relational databases, Experience with PostgreSQL, Experience with AWS cloud services, Ability to work across the full stack, Experience with CI/CD pipelines, Experience with cloud infrastructure setup 📃 Skills: TypeScript, React, Angular, Python, REST, PostgreSQL, AWS, CI/CD, Kubernetes, Docker 🏢 Description: Do you enjoy building polished, user-friendly applications while working across the full stack? We are looking for a talented Full Stack Software Engineer to design and develop scalable backend services, RESTful APIs, and modern frontend applications using TypeScript and React or Angular. You’ll also get to leverage Python for backend scripting and work with cloud-native systems to deliver solutions that make a real impact. What You’ll Do: Build and maintain RESTful APIs and backend services in a cloud environment. Develop responsive frontend applications using React/TypeScript or Angular. Work with relational databases (PostgreSQL) and integrate multiple data sources. Ensure applications are reliable, scalable, and performant. Collaborate with stakeholders to translate requirements into high-quality technical solutions. Contribute to CI/CD pipelines, deployment automation, and cloud infrastructure setup. Must Haves: Strong experience with TypeScript and React or Angular Backend/API development experience and familiarity with Python Knowledge of relational databases and cloud-based systems (AWS preferred) Ability to work across the full stack and take ownership of solutions Nice to Haves: Experience with distributed systems or service-oriented architectures Familiarity with containers, Kubernetes, and cloud-native deployment patterns Exposure to data-intensive or analytics-driven applications

🏢 Summary: Full Stack Software Engineer role focused on building scalable backend services and RESTful APIs while developing modern frontend applications using TypeScript and React or Angular in a cloud environment. The position involves working across the full stack, leveraging Python, PostgreSQL, and AWS to deliver reliable, high-performance solutions. You will contribute to CI/CD pipelines and cloud infrastructure setup to support scalable deployments. 🗂️ Requirements: Strong experience with TypeScript, Strong experience with React or Angular, Backend and RESTful API development experience, Experience with Python, Knowledge of relational databases, Experience with cloud-based systems, Ability to work across the full stack 📃 Skills: TypeScript, React, Angular, Python, REST, PostgreSQL, AWS, CI/CD, Kubernetes, Docker 🏢 Description: Do you enjoy building polished, user-friendly applications while working across the full stack? We are looking for a talented Full Stack Software Engineer to design and develop scalable backend services, RESTful APIs, and modern frontend applications using TypeScript and React or Angular. You’ll also get to leverage Python for backend scripting and work with cloud-native systems to deliver solutions that make a real impact. What You’ll Do: Build and maintain RESTful APIs and backend services in a cloud environment. Develop responsive frontend applications using React/TypeScript or Angular. Work with relational databases (PostgreSQL) and integrate multiple data sources. Ensure applications are reliable, scalable, and performant. Collaborate with stakeholders to translate requirements into high-quality technical solutions. Contribute to CI/CD pipelines, deployment automation, and cloud infrastructure setup. Must Haves: Strong experience with TypeScript and React or Angular Backend/API development experience and familiarity with Python Knowledge of relational databases and cloud-based systems (AWS preferred) Ability to work across the full stack and take ownership of solutions Nice to Haves: Experience with distributed systems or service-oriented architectures Familiarity with containers, Kubernetes, and cloud-native deployment patterns Exposure to data-intensive or analytics-driven applications

🏢 Summary: A fully remote Full Stack Engineer role in a late-stage product company building a new engineering team in Poland. The position focuses on developing scalable, production-grade applications using TypeScript, React, and Node.js across the stack. Engineers collaborate cross-functionally to deliver end-to-end features with strong emphasis on quality, performance, and reliability. 🗂️ Requirements: Strong proficiency in TypeScript, Experience with React, Experience with Node.js or server-side TypeScript, Understanding of testing practices, Experience with CI/CD, Experience with version control, Ability to work in a collaborative, fast-paced environment 📃 Skills: TypeScript, React, Node.js, CI/CD, Git, APIs, Microservices, AWS, GCP, Azure, Testing 🏢 Description: A late-stage (Series D), well-funded product company is building a brand-new, fully-remote engineering team in Poland. We're looking for talented Full Stack Engineers who can build high-quality, scalable applications using TypeScript , React , and modern backend frameworks. You'll work closely with product, design, and other engineers to deliver features end-to-end. While financial markets experience is a plus, it is not required - strong engineering fundamentals matter more. We are open to candidates who specialize in only front-end or only back-end development, as well as true full-stack engineers. What You'll Do Design, build, and maintain production-grade applications using TypeScript across the stack. Develop intuitive, performant user interfaces using React and modern front-end tooling. Build and maintain backend services, APIs, and integrations (Node.js / TypeScript). Collaborate with product managers and designers to translate requirements into technical solutions. Write clean, testable, maintainable code with strong attention to performance and reliability. Participate in code reviews, architecture discussions, and continuous improvement initiatives. Troubleshoot issues across the stack and contribute to a culture of engineering excellence. Required Skills Strong proficiency in TypeScript . Experience with React for front-end development. Experience with Node.js , server-side TypeScript, or similar backend frameworks. Solid understanding of modern software engineering practices: testing, CI/CD, version control, code reviews. Ability to work in a fast-paced, collaborative environment. Nice to Have Experience working in financial markets , fintech, or trading systems. Familiarity with cloud platforms (AWS, GCP, Azure). Experience with microservices, event-driven architectures, or distributed systems. Exposure to data visualization libraries or real-time data applications. Experience with performance optimization on either the front-end or back-end.

🏢 Summary: Hybrid Front-End / Fullstack Engineer role focused on building and maintaining modern web applications using Angular and Node.js for large-scale, business-critical projects in the financial services domain. The position involves working in an international team within a disciplined, quality-driven engineering environment. Responsibilities include development, code quality assurance, and contribution to CI/CD processes. 🗂️ Requirements: Strong experience with JavaScript, Strong experience with TypeScript, Hands-on experience with Angular, Experience with Node.js, Experience with NestJS, Very good knowledge of HTML5, Very good knowledge of CSS3, Very good knowledge of SCSS, Familiarity with CI/CD processes, Solid understanding of front-end best practices 📃 Skills: JavaScript, TypeScript, Angular, Node.js, NestJS, HTML5, CSS3, SCSS, CI/CD 🏢 Description: Front-End / Fullstack Engineer (JavaScript / TypeScript) Hybrid work model – 2 days per week from the office in Kraków We are looking for a Front-End / Fullstack Engineer with strong experience in JavaScript and TypeScript , who is comfortable working across both front-end and back-end technologies. The ideal candidate has hands-on experience with Angular and Node.js and enjoys collaborating with a strong, international team of engineers to build applications for a large-scale, business-critical initiative within the financial services domain. While solid technical foundations are essential, we are primarily looking for passionate engineers who are eager to continuously improve, challenge themselves, and work in a highly disciplined, verifiable, and quality-driven engineering environment . Your Responsibilities Design, develop, and maintain modern web applications using Angular and Node.js Collaborate closely with engineers, product owners, and stakeholders in an international environment Apply best practices in front-end development, ensuring high code quality and maintainability Contribute to CI/CD pipelines and development automation Actively participate in code reviews, technical discussions, and continuous improvement initiatives Core Skills & Requirements Strong experience with JavaScript and TypeScript Solid understanding of front-end best practices Hands-on experience with Angular Experience with Node.js and NestJS Very good knowledge of HTML5, CSS3, SCSS Familiarity with CI/CD processes Ability to work in a structured, disciplined engineering environment Strong communication skills and ability to work in an international team Nice to Have Experience with the ELK stack Experience using Ag-Grid Exposure to Google Cloud Platform or Alibaba Cloud Basic knowledge of or interest in Machine Learning What We Value Passion for clean, maintainable, and verifiable code Willingness to learn and continuously improve technical skills Ownership, accountability, and a proactive engineering mindset Team-oriented attitude and openness to feedback Why apply for an Antal job offer? When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process. About Antal Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research. Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams. Discover our latest job openings: https://en.antal.pl/candidates Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland

🏢 Summary: Remote B2B Fullstack Engineer role focused on developing and maintaining backend services in Node.js while contributing to Azure-based cloud architecture and infrastructure as code. The position combines backend development with DevOps responsibilities, including Terraform, Docker, and automated testing. The role involves active participation in system architecture and implementation of secure, scalable solutions. 🗂️ Requirements: 3+ years of experience with Node.js and Express.js, Experience with Terraform, Practical experience with Docker and containerization, Knowledge of authentication and authorization mechanisms (JWT, OAuth2), Experience writing automated unit and integration tests, Basic experience with cloud platforms (Azure preferred) 📃 Skills: Node.js, Express.js, Terraform, Docker, Azure, JWT, OAuth2, REST, CI/CD, JavaScript, UnitTesting, IntegrationTesting 🏢 Description: Fullstack Engineer (Node.js / Azure / Terraform / React/Vue) Lokalizacja: praca zdalna Forma zatrudnienia: B2B Wynagrodzenie: 1200-1350 MD B2B O roli Szukamy doświadczonego Fullstack Engineera , który będzie odpowiedzialny za rozwój backendu w Node.js oraz współpracę przy architekturze chmurowej opartej o Azure. Osoba na tym stanowisku będzie również uczestniczyć w projektowaniu infrastruktury (Terraform), konteneryzacji (Docker) oraz zapewnianiu jakości poprzez testy automatyczne. To rola dla osoby, która łączy kompetencje backendowe, DevOps oraz rozumienie architektury systemów. Zakres obowiązków Tworzenie i rozwój backendu aplikacji w Node.js (Express.js) Projektowanie i implementacja RESTful API Praca z platformą Microsoft Azure (wdrażanie, utrzymanie, automatyzacja) Projektowanie infrastruktury jako kodu ( Terraform ) Praca z Dockerem oraz konteneryzacją aplikacji Wdrażanie dobrych praktyk bezpieczeństwa (auth, authz, secure coding) Tworzenie oraz utrzymanie testów jednostkowych i integracyjnych Współpraca z zespołem przy projektowaniu architektury systemów Wymagania (MUST HAVE) Min. 3+ lata doświadczenia w Node.js (Express.js) Doświadczenie w pracy z Terraform Praktyczna znajomość Docker / konteneryzacji Znajomość mechanizmów autoryzacji i uwierzytelniania (JWT, OAuth2 itp.) Doświadczenie w pisaniu testów automatycznych (unit/integration) Znajomość podstaw pracy z chmurą (preferowane Azure ) Mile widziane (NICE TO HAVE) Doświadczenie w frontendzie: React lub Vue.js Znajomość Elasticsearch / Apache Lucene Doświadczenie w architekturze: mikroserwisy, serverless Umiejętność tłumaczenia złożonych zagadnień technicznych Dobre zdolności komunikacyjne i teamwork Podejście analityczne i problem-solving Oferujemy Pracę w nowoczesnym środowisku technologicznym Realny wpływ na architekturę systemu Pracę w oparciu o dobre praktyki DevOps i CI/CD Elastyczną formę współpracy Możliwość pracy zdalnej Rozwój w obszarze cloud / backend / architektury

🏢 Summary: Senior Full-Stack Engineer role (100% remote, B2B) focused on building AI-powered, agent-based product features end-to-end, from data modeling to user interface. The position involves designing backend systems, APIs, document processing pipelines, and AWS-based infrastructure, while integrating LLM capabilities into the product. The project emphasizes production-grade systems, AI-assisted development, and scalable cloud architecture. 🗂️ Requirements: Minimum 7 years of software engineering experience with proven production deployments, Minimum 3 years of commercial experience with Next.js, Advanced knowledge of TypeScript, Advanced knowledge of Python, Experience in system design, data modeling and API development, Experience building and managing AWS cloud infrastructure, Daily use of AI-assisted development tools (e.g., Codex, Claude), Advanced English proficiency (C1+), Strong communication skills 📃 Skills: Next.js, TypeScript, Python, AWS, API, LLM, Codex, Claude, AI, SOC2, ISO27001 🏢 Description: Miejsce pracy: Zdalnie (100% zdalnie) Start: ASAP (akceptowalny max 30 dniowy okres wypowiedzenia) Forma współpracy: B2B z ITFS Stawka: 150-175 PLN/h + VAT Proces rekrutacyjny: Krótka rozmowa telefoniczna z rekruterem ITFS -> Krótka rozmowa miękko-techniczna -> Rozmowa techniczna -> Decyzja Zadania: Tworzenie i wdrażanie pełnocyklowych funkcji full-stack od modelu danych do interfejsu użytkownika, Samodzielne zarządzanie funkcjami w pełnym cyklu życia produktu (określanie zakresu, wdrażanie, testowanie), Projektowanie i utrzymywanie systemów backendowych oraz interfejsów API zasilających przepływy pracy oparte na agentach AI (agentic workflows), Budowanie pipieline’ów przetwarzania dokumentów Zarządzanie infrastrukturą wyszukiwania Zarządzanie infrastrukturą i observability budowanych systemów na platformie AWS Budowanie agentów Tworzenie pipeline’ów generowania dokumentów Budowanie systemów generujących podręczniki firmowe Integracja możliwości modeli LLM z interfejsem produktu Wymagania: Min. 7 lat doświadczenia w inżynierii oprogramowania wraz z udokumentowanym doświadczeniem we wdrażaniu systemów produkcyjnych Min. 3 lata doświadczenia komercyjnego z Next.js Zaawansowana znajomość TypeScript oraz Python Wiedza i doświadczenie w zakresie projektowania systemów, modelowania danych i tworzenia API Doświadczenie w budowaniu i obsłudze infrastruktury chmurowej AWS Dbałość o wartość biznesową budowanych rozwiązań Swobodne i codzienne korzystanie z narzędzi do rozwoju wspomaganego przez sztuczną inteligencję, takich jak Codex, Claude itp. Doskonałe umiejętności komunikacyjne Zaawansowana znajomość j.angielskiego - poziom C1+ Mile widziane: Doświadczenie w startupie (najlepiej na etapie pre-Series A) Znajomość wzorców agentowych AI (agentic AI patterns): używanie narzędzi, orkiestracja, pobieranie danych, strukturyzowane generowanie Doświadczenie z branży legaltech, fintech lub innego regulowanego sektora B2B SaaS Znajomość mechanizmów przepływu pracy prawnej (umowy, tworzenie podmiotów, zatrudnienie, własność intelektualna) Doświadczenie z zapewnianiem zgodności SOC 2 / ISO 27001 lub pracami nad gotowością korporacyjną systemów Oferujemy: Możliwość skorzystania z pakietu medycznego i sportowego, Możliwość skorzystania z darmowej opieki księgowej (do 3 wpisów miesięcznie), Praca przy ciekawym i rozwojowym projekcie, Przejrzyste warunki współpracy w firmie o pewnej i stabilnej pozycji rynkowej. Nr identyfikacyjny projektu: P3434

🏢 Summary: Senior / Staff Full Stack Engineer role focused on building and scaling an AI-driven product platform in a fully remote setup. The position involves developing React/TypeScript frontend experiences and Python-based backend APIs to support document processing, retrieval systems, and structured AI/ML outputs. The engineer will integrate frontend, backend, and AI workflows into a reliable, testable product experience. 🗂️ Requirements: 5+ years full stack engineering experience, Strong Python backend API development experience, Strong React and TypeScript production experience, Experience with modern API frameworks (e.g. FastAPI), Experience designing and consuming API contracts and structured JSON, Experience with asynchronous workflows and background jobs, Testing experience covering edge cases and API behavior, Understanding of AI/ML product workflows 📃 Skills: Python, React, TypeScript, FastAPI, API, JSON, AI, ML, LLM, OpenAI, Gemini, Anthropic, Embeddings, Vector, Firebase, Firestore, GCP, CloudRun, CloudSQL, Neo4j 🏢 Description: We are looking for a Senior / Staff Full Stack Engineer with strong Python and React experience to build and scale an AI driven product platform in a fully remote setup. The role focuses on frontend experiences, backend APIs, document processing, retrieval systems, and structured AI / ML outputs. ✅ Your responsibilities: Building frontend experiences in React and TypeScript for evidence review, workflow status, recommendations, and decision outputs. Developing backend APIs in Python, ideally with FastAPI, for document upload, asynchronous processing, job status, retries, partial success, and structured results. Connecting frontend, backend, data workflows, retrieval systems, and AI generated outputs into a reliable product experience. Building product 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. Writing tests around API contracts, edge cases, error cases, and realistic user workflows. 🧠 Our requirements: 5+ years of professional full stack engineering experience. Strong experience with Python and backend API development. Strong experience with React and TypeScript in production applications. Experience with modern API frameworks, ideally FastAPI or similar. 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. Good testing habits, especially around edge cases, failure cases, and API behavior. ⭐ Nice to Have: Experience with AI / ML product workflows, including retrieval systems, embeddings, vector search, LLM based applications, or LLM APIs such as OpenAI, Gemini, Anthropic/Claude. 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 modern ML/AI infrastructure Private healthcare and Multisport Life insurance Real influence on technical decisions and architecture Exposure to cutting-edge technologies Collaborative and supportive team environment