[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"project-python-developer-with-nodejs-maintenance-skills-mfd":3,"similar-python-developer-with-nodejs-maintenance-skills-mfd":42},{"id":4,"slug":5,"title":6,"skills":7,"budget":29,"duration":29,"location":30,"onsitePercent":29,"contractType":31,"foundAt":32,"category":33,"description":37,"rawText":38,"language":39,"projectId":40,"sourceUrl":41},2418,"python-developer-with-nodejs-maintenance-skills-mfd","Python Developer with Node.js Maintenance Skills (m\u002Ff\u002Fd)",[8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28],"Python","Node.js","LangChain","LLM","Prompt Engineering","Express\u002FKoa","Jest\u002FMocha","pytest","CI\u002FCD","Kotlin","Git","Docker","AWS","Azure","GCP","PostgreSQL","MongoDB","Redis","API Design","JWT","OAuth2",null,"Vienna","contracting","2026-05-13T12:27:37+00:00",{"id":34,"slug":35,"label":36},1,"software_dev","Software-Entwicklung","Maintain and stabilise existing Node.js conversational backend while transitioning to Python\u002FAI development. Develop Python-based conversational AI orchestration layer using LangChain\u002FLangGraph and implement LLM orchestration pipelines.","Python Developer with Node.js Maintenance Skills (m\u002Ff\u002Fd)\n\nFreelance\u002FContracting project\n\nVienna\n\nStart date: 05\u002F26\n\nReference number: 869579\u002F1\nBewerbung starten\n\nDiesen Job teilen oder drucken\n\nResponsibilities\n\n- Maintain and stabilise the existing Node.js conversational backend (bug fixes, minor enhancements, testing, reliability, cautious change management)\n- Ensure continuous operation of production services and timely resolution of maintenance issues with no regressions\n- Work with a short-term Node.js maintenance focus and transition mid- to long-term to full-time Python\u002FAI development\n- Develop and extend a Python-based conversational AI orchestration layer (LangChain \u002F LangGraph)\n- Implement LLM orchestration pipelines including prompt engineering, API integration, hallucination handling, error handling, and fallback strategies\n- Participate in architecture discussions and the migration from Node.js to a Python\u002FKotlin stack\n- Integrate and collaborate with Kotlin backend services and engineers\n- Create and maintain automated tests, technical documentation, and CI\u002FCD pipelines\n- Collaborate closely with a cross-functional product team (frontend, Kotlin, business, design)\n\nProfile\n\n- Professional experience maintaining Node.js backends in production environments (Express\u002FKoa-style)\n- Professional Python experience\n- Practical experience with LLMs, LangChain, and prompt engineering\n- Proven handling of LLM-specific challenges (e.g. hallucinations, prompt iteration, reliability)\n- Experience with automated testing (Jest\u002FMocha, pytest) and CI\u002FCD pipelines\n- Familiarity with Kotlin backend ecosystems and service integration\n- Experience with Git \u002F version control\n- Familiarity with Docker, cloud platforms (AWS, Azure, GCP), and Databases (PostgreSQL, MongoDB, Redis)\n- Solid understanding of API design\n- JWT\u002FOAuth2 knowledge is an advantage\n\nBenefits\n\n- International client\n- Remote work possible\n\nAbout Hays\n\nIT is and always has been our core business that laid the foundation for Hays' success. We are the biggest privately owned IT recruitment agency in Germany and offer the best jobs for every career level – whether you are interested in vacancies in agile SMEs or international DAX groups. Hays masters the entire IT job spectrum, from support to software architecture or digitalisation – thanks to our broad portfolio, we have something for everyone. In the last decades, we were able to support numerous IT experts with choosing the right path for a successful career, positioning ourselves as their lifelong partner. Our highly specialised consultants can cater to your every wish and expectation and will prepare you for interviews and contract negotiations. Give it a try and learn what the market has to offer – our services are free of charge, non-binding and discreet! We look forward to hearing from you.\n\nStaffing process for freelance specialists\n\n- Analysis of qualifications\n\n- Telephone or personal interview\n\n- Contact with customers\n\n- Contract with Hays\n\n- 1\n1. Analysis of qualifications\n\nWe carry out a detailed analysis of your technical qualifications on the basis of your CV, your application documents and your profile.\n\n- 2\n2. Telephone or personal interview\n\nWe would like to get to know you better in a personal conversation. Your personal contact would be pleased to advise you and clarify any outstanding questions about your qualifications. In this way, your profile will be expanded to include a few more skills if necessary.\n\n- 3\n3. Contact with customers\n\nWe compare your qualifications and targets with the expectations of our customers. As soon as we have found a suitable project for you, we will contact you and introduce you to your potential project partners. If you are interested in the project, we will contact the customers. Then a personal discussion will take place with the project partner.\n\n- 4\n4. Contract with Hays\n\nIf both parties are interested in collaborating, all of the relevant framework conditions will be agreed with Hays. Hays then acts as a contractual partner for both parties. In other words, a contract is drawn up between you and Hays and the company and Hays.\n\nContact at Hays\n\n+43 1 5353443 0 E-Mail: positionen@hays.at positionen@hays.at\nReference number : 869579\u002F1\n\n© Copyright Hays plc, . Das Wort HAYS, die H-Symbole, „Hays Working for your tomorrow\" und „Powering the world of work\" sowie damit verbundene Logos und Illustrationen sind eingetragene Markenzeichen der Hays PLC. Die H-Symbole sind Originaldesigns, die in vielen Ländern geschützt sind. Alle Rechte vorbehalten.\n\nBewerbung starten\n\nDiesen Job teilen oder drucken\n\nZur Gesamtübersicht\n\nMEINE MERKLISTE\n\nUm die Merkliste zu nutzen, ist ein Login notwendig.\nFalls Sie noch keine Login-Daten haben, können Sie sich in zwei Minuten registrieren.\n\nJetzt einloggen Sie haben noch keinen Login?\n\nJetzt registrieren\nIhre Vorteile\n\nGeräteübergreifend Jobangebote speichern und sich bewerben\n\nBewerbung auf mehrere Jobangebote gleichzeitig\n\nSchnelle und einfache Bewerbung\n\nBewerben mit 1 Klick\n\nIhre Bewerbungsunterlagen liegen uns bereits vor.\n\nMöchten Sie sich nun damit bewerben?\n\nJetzt bewerben\n\nChat\n\nChat -\n\nDer Chat kann aufgrund Ihrer Cookie-Einstellungen nicht angezeigt werden.\nBitte aktivieren Sie die funktionellen Cookies und laden die Seite neu, um den Inhalt zu sehen.\nCookie-Einstellungen anpassen","en","869579\u002F1","https:\u002F\u002Fwww.hays.de\u002Fjobsuche\u002Fstellenangebote-jobs-detail-python-developer-with-nodejs-maintenance-skills-vienna-869579\u002F1",{"items":43},[44,59,83,103,127],{"id":45,"slug":46,"title":47,"skills":48,"budget":29,"duration":29,"location":55,"onsitePercent":56,"contractType":31,"foundAt":57,"category":58},4910,"java-backendentwicklung-im-bereich-dms","Java-Backendentwicklung im Bereich DMS",[49,17,50,51,23,19,52,16,53,54],"Java","Spring Boot","REST","Kubernetes","Scrum","Kanban","Frankfurt am Main",50,"2026-05-20T17:25:23+00:00",{"id":34,"slug":35,"label":36},{"id":60,"slug":61,"title":62,"skills":63,"budget":77,"duration":78,"location":79,"onsitePercent":80,"contractType":31,"foundAt":81,"category":82},4908,"software-engineer-fuer-systemarchitektur-und-integration","Software Engineer für Systemarchitektur und Integration",[64,49,65,66,67,68,69,70,71,72,73,74,75,76],"C++","Requirements Engineering","Software Testing","Sensorik","Steuerungstechnik","Netzwerktechnik","CAN","Security","SCADE","PTC RV&S","PTC Codebeamer","DOORS","Jira","auf Anfrage","12 Monate","Biberach",60,"2026-05-20T16:30:15+00:00",{"id":34,"slug":35,"label":36},{"id":84,"slug":85,"title":86,"skills":87,"budget":29,"duration":99,"location":29,"onsitePercent":100,"contractType":31,"foundAt":101,"category":102},4904,"senior-fullstack-backend-developer-mwd-aws-nestjs-react-remote","Senior Fullstack \u002F Backend Developer (m\u002Fw\u002Fd) | AWS | NestJS | React | Remote",[88,89,90,91,92,93,94,95,96,97,19,52,16,98,23,24,25,18],"NestJS","React","JavaScript","TypeScript","AWS Lambda","AWS ECS","AWS DynamoDB","AWS RDS","AWS S3","AWS CDK","REST APIs","6 Monate",0,"2026-05-20T16:25:20+00:00",{"id":34,"slug":35,"label":36},{"id":104,"slug":105,"title":106,"skills":107,"budget":29,"duration":122,"location":123,"onsitePercent":124,"contractType":31,"foundAt":125,"category":126},4903,"senior-entwickler-java-backend-mwd","Senior-Entwickler Java Backend (m\u002Fw\u002Fd)",[49,108,109,110,111,112,113,114,115,116,117,118,119,18,19,120,53,121],"J2EE","EJB","Spring","Oracle WebLogic","Hibernate","JPA","Oracle","SQL","Apache Kafka","Apache Cassandra","Jenkins","Maven","DevOps","ISTQB","4 Monate","Nürnberg",20,"2026-05-20T16:11:08+00:00",{"id":34,"slug":35,"label":36},{"id":128,"slug":129,"title":130,"skills":131,"budget":29,"duration":29,"location":29,"onsitePercent":29,"contractType":31,"foundAt":145,"category":146},4866,"3d-software-engineer-wmd","3D Software Engineer (w\u002Fm\u002Fd)",[132,133,134,135,136,137,138,139,140,9,8,141,142,143,20,21,22,144],"3D Programmierung","Geometry Processing","CAD Automatisierung","Creo","SolidWorks","Autodesk","Blender","Three.js","WebGL",".NET","API-Design","Datenmodellierung","Microservices","2026-05-20T14:15:06+00:00",{"id":34,"slug":35,"label":36}]