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Jobs by e-mail

    Reference number: 880125/1

    Strategic Communications & Execution Lead (m/f/d)

    Freelance/temporary employment for a project
    Zug
    • Design and maintain a holistic map of meeting structures, reporting cycles, and governance ritual
    • Define the "Project Infrastructure," including stakeholder lists and high-level roadmaps, to ensure scalability
    • Assume end-to-end responsibility for "Living Assets" (G-Site, Playbooks, FAQs), including quarterly reviews
    • Lead the end-to-end execution of the monthly newsletter, from content hunting to distribution
    • Drive bi-weekly and monthly reporting enablement, aggregating progress for leadership status updates
    • Translate technical milestones into inspirational "Success Stories" for the global community
    • Define and publish a "Holistic Scenario Map" linking development milestones to training assets and videos
    Online since: Fri Jun 05 15:44:48 CEST 2026
    Reference number: 880211/1

    Back-End Java Developer (m/f/d)

    Freelance/temporary employment for a project
    Zurich
    • Design and evolve robust distributed systems, balancing scalability, latency, consistency, and fault tolerance
    • Apply distributed systems principles (e.g. consistency models, idempotency, back-pressure, resiliency patterns) to real-world financial workloads
    • Develop and maintain high-performance backend services and APIs using Java, Spring, and Spring Boot
    • Optimize end-to-end latency, asynchronous processing, and efficient IO
    • Identify and resolve performance bottlenecks through profiling, benchmarking, and load testing
    • Integrate complex financial platforms and third-party services, ensuring correctness, data integrity, and operational resilience
    • Design reliable messaging and integration flows using JPA, JDBC templates, JMS, and event-driven patterns
    • Code Quality and Best Practices: Write clean, maintainable, and efficient code while adhering to industry best practices, including code reviews, testing, and CI/CD
    • Apply financial-grade engineering principles (auditability, security, controlled change)
    • Collaboration: Work closely with product managers, designers, and other stakeholders to gather requirements and translate them into technical specifications and deliverables
    Online since: Fri Jun 05 15:44:21 CEST 2026
    Reference number: 880207/1

    Senior Front-End React Developer (m/f/d)

    Freelance/temporary employment for a project
    Zurich
    • Take ownership of complex frontend solutions, ensuring scalability, performance, security, and long-term maintainability
    • Partner closely with UX/UI designers and business stakeholders to translate complex requirements into intuitive, high-quality user experiences
    • Deliver high-quality, production-grade React and TypeScript code for complex financial applications
    • Address advanced frontend challenges such as state management, performance optimization, and integration with distributed backend systems
    • Proactively refactor and modernize existing codebases where required
    • Support troubleshooting and root-cause analysis in both development and production environments
    • Contribute actively in an agile, fast-paced, and highly collaborative environment
    Online since: Fri Jun 05 15:42:59 CEST 2026
    Reference number: 880114/1

    Java Architect for GIS project (m/f/d)

    Freelance/Contracting project
    Vienna
    • Assess and challenge the existing microservices architecture (service boundaries, APIs, data ownership)
    • Identify architectural risks, bottlenecks, and anti-patterns and define improvement measures
    • Review and optimize Java-based APIs with a focus on scalability, resilience, and quality
    • Evaluate event-driven data flows and system integrations (latency, idempotency, reliability)
    • Support and validate the decoupling of legacy Oracle/JDBC dependencies
    • Create, refine, and maintain architecture documentation (e.g., Arc42, DACI)
    • Act as a technical authority and sparring partner for architects and engineering teams
    • Conduct code and solution reviews and provide clear technical guidance
    • Advise developers and enforce best practices and quality standards
    Online since: Fri Jun 05 15:42:23 CEST 2026
    Reference number: 880011/1

    Senior Techn. Cutover Manager | S/4HANA Big Bang (m/f/d)

    Freelance/Contracting project
    Berlin
    • Building a robust and scalable cutover strategy
    • Developing a sustainable cutover governance framework
    • Creating, aligning, and quality-assuring integrated cutover plans
    • Acting as a sparring partner to the Technical Cutover Lead
    • Reviewing and challenging existing planning approaches critically and constructively
    • Ensuring high transparency regarding dependencies, risks, and critical paths
    • Supporting a successful Big Bang go-live preparation and execution
    Online since: Fri Jun 05 15:41:20 CEST 2026
    Reference number: 880029/1

    Planning Engineer (m/f/d)

    Freelance/temporary employment for a project
    Aargau
    • Management and update of the master Primavera P6 schedule at various levels and Progress tracking and measurement of engineering, procurement, construction and Commissioning delivery using various tools
    • Maintenance of schedule basis documents such as deliverable and interdependency matrices as well as Lead or assist cross-functional teams in interactive planning sessions and drive
    • Inputs to the schedule in accordance with site and project planning procedures and Monitor schedule deviations and variances and assist in the developing of alternative methods for corrective action
    • Communicate progress and key milestones to all relevant stakeholders
    • Prepare and provide schedule progress reports, critical path analysis, trending chartsand schedule analysis on a periodic basis
    • Responsible for schedule quality and governance and to ensure credibility of theinformation contained in the schedule
    • Active involvement in analysis of the integrated project schedules from each discipline
    • Review schedules with project team members on a regular basis to ensure that accurate and timely data is Incorporated in the schedule
    • Prepare reports in accordance with Lonza procedures and as required by Project Management, to provide status on the project schedule and critical project issues
    Online since: Fri Jun 05 14:35:03 CEST 2026
    Reference number: 880015/1

    PMO for Training & Adoption – S/4HANA Transformation (m/f/d)

    Freelance/Contracting project
    Remote/Berlin
    • Support the Training & Adoption Lead
    • Track activities, dependencies, milestones, risks, and open points
    • Coordinate across workstreams
    • Ensure training and adoption topics are properly followed up and not lost between teams
    • Prepare and structure briefings, updates, and governance-related inputs
    • Support rollout readiness, communication alignment, and training tracking
    • Bring transparency to status, ownership, and next steps
    • Proactively identify gaps and suggest workable solutions
    • Support the lead as a reliable senior counterpart / “pair of hands” in day-to-day orchestration
    Online since: Fri Jun 05 14:10:50 CEST 2026
    Reference number: 879607/1

    C++/ Qt - Developer (m/f/d)

    Freelance/temporary employment for a project
    Zurich
    • Development of software for distributed command and control systems, training and testing tools
    • Work in a team of three to ten developers
    • Independent development of innovative solutions
    • Work with Git/Mercurial, Qt, Visual Studio, SW Design/UML and unit tests
    • Development of C++ based applications on Windows operating systems
    • Programming of various components, in particular fire control units, for static fire control nodes
    Online since: Fri Jun 05 14:09:49 CEST 2026
    Reference number: 879862/1

    Material Planner (m/f/d)

    Freelance/temporary employment for a project
    Aargau
    • Ensuring that our manufacturing units are adequately supplied with direct materials such as packaging materials, process aid and production-supporting auxiliary materials
    • Inventory management and definition of risk mitigation actions - as well as defining and implementing measures for efficient processes (management of safety stocks, process optimisation, risk analysis)
    • Point of contact for all related suppliers regarding deliveries and tracking of purchase orders
    • Maintain effective communication among all business partners (e.g. Manufacturing Units, Procurement, External Suppliers, Master 
    • Production Scheduler, Detailed Schedulers, Quality, Warehouse, Logistics, etc.)
    • Actively drive continuous improvement processes, challenge/question the status quo and collaborate on projects within Materials
    • Management in cooperation with internal and external stakeholders
    Online since: Wed Jun 03 14:35:55 CEST 2026
    Reference number:
    Hays internal

    Reward Analyst (m/f/d)

    Internal career at Hays
    Düsseldorf, Frankfurt/M., Mannheim, Stuttgart
    Online since: Wed Jun 03 14:33:10 CEST 2026

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    Reference number: 879801/1

    SQLite Database Specialist (m/f/d)

    Freelance/temporary employment for a project
    Zurich
    • Take ownership of existing internal tools used for data recording and analysis
    • Analyze and resolve bugs based on an existing Jira backlog
    • Implement new features and improvements based on prioritized requirements
    • Gradually refactor and enhance system architecture where necessary
    • Work with SQL-based data storage (SQLite backend)
    • Collaborate with internal stakeholders and the current support contact
    • Ensure reliability and maintainability of tools used in production
    Online since: Wed Jun 03 11:51:17 CEST 2026
    Reference number: 878124/1

    Senior Treasury Expert (m/f/d)

    Permanent employment with our customer
    Vienna
    • Liquidity & Capital Planning: Lead group-wide cash flow forecasting, liquidity management, and capital planning
    • Banking & Investor Relations: Act as the key counterpart for banks, lenders, and shareholders; manage all reporting and covenant obligations
    • Risk Management: Develop hedging strategies, monitor market and interest rate risks, and ensure stable long-term financing structures
    • Treasury Operations: Oversee payments governance, bank account management, intercompany funding, and drive automation and digitalization of treasury processes
    Online since: Fri May 29 13:56:03 CEST 2026
    Reference number: 877522/1

    Data Governance & Data Quality Engineer (m/f/d)

    Freelance/Contracting project
    Vienna and Remote
    • Define Data access policies
    • Ensure compliance with encryption and security standards
    • Set up data cataloging and lineage
    • Define reconciliation checks, Data quality KPIs
    • Validate SQL Server output vs Databricks output
    Online since: Wed May 20 15:09:17 CEST 2026
    Reference number: 877521/1

    Data Engineer (m/f/d)

    Freelance/Contracting project
    Vienna/Bratislava and Remote
    • Develop, migrate, and optimize ETL/ELT pipelines
    • Orchestrate and manage data workflows
    • Convert T-SQL logic into Spark/Databricks jobs
    • Improve pipeline performance (e.g. partitioning, caching)
    • Support end-to-end solutions from analysis to testing
    Online since: Wed May 20 14:59:28 CEST 2026
    Reference number:
    Hays internal

    International Active Sourcing Specialist (m/f/d)

    Internal career at Hays
    Mannheim
    Online since: Thu May 07 11:19:05 CEST 2026
    Reference number: 872874/1

    Senior Finance Business Partner Engineering & Digital (m/f/d)

    Permanent employment with our customer
    Tyrol
    • Own and ensure accuracy of Engineering & Digital financial closing, including validation of accruals, cost allocations, and capitalization logic, in full compliance with Group Controlling standards
    • Lead financial planning and forecasting cycles for Engineering & Digital, including operational reviews and close alignment with Engineering leadership, Group FP&A, and other Finance teams
    • Independently validate planning assumptions, differentiate most likely vs. best-case scenarios, and proactively identify financial risks, constraints and improvement opportunities
    • Act as a trusted finance business partner to Engineering & Digital management, providing constructive challenge and decision-oriented recommendations
    • Drive financial transparency across Engineering & Digital, identify cost optimization levers and support informed decision-making through structured financial analyses
    • Perform financial validation of R&D programs, including guidance on cost capitalization criteria and accounting treatment
    • Support the annual R&D funding submissions to Austrian state authorities (FFG), ensuring financial accuracy, consistency and compliance
    • Contribute to the redesign of BI and KPI reporting for Engineering & Digital, enabling scalable, transparent and insightful reporting solutions
    • Continuously improve controlling processes, tools and governance in a dynamic, fast-paced environment
    Online since: Tue May 05 15:54:19 CEST 2026
    Reference number: 871920/1

    SAP Integration Suite Expert (m/f/d)

    Freelance/Contracting project
    Vienna
    • Hands-on development and optimization of integration scenarios within the SAP Integration Suite
    • Analysis, refactoring, and performance optimization of existing interfaces
    • Simplification of complex integrations (lean design, reduced over-engineering)
    • Integration of on-premise systems and cloud applications
    • Error analysis and rapid, pragmatic implementation of solutions
    • Support of integrations related to production orders and goods movements
    • Close collaboration with internal IT key stakeholders
    Online since: Fri Apr 24 15:23:00 CEST 2026
    Reference number: 871549/1

    Project Management Office supporter for Risk & Compliance (m/f/d)

    Freelance/Contracting project
    Vienna and Remote
    • Project management within the Risk & Compliance workstream
    • Coordination of meetings, workshops, and alignment sessions
    • Preparation of meeting minutes, action items, and decision logs
    • Tracking of tasks, milestones, and overall progress
    • Maintenance of project folders and document management
    • Preparation of status and progress reports
    • Support of stakeholder communication
    Online since: Thu Apr 23 14:48:14 CEST 2026
    Reference number: 869579/1

    Python Developer with Node.js Maintenance Skills (m/f/d)

    Freelance/Contracting project
    Vienna
    • Maintain and stabilise the existing Node.js conversational backend (bug fixes, minor enhancements, testing, reliability, cautious change management)
    • Ensure continuous operation of production services and timely resolution of maintenance issues with no regressions
    • Work with a short-term Node.js maintenance focus and transition mid- to long-term to full-time Python/AI development
    • Develop and extend a Python-based conversational AI orchestration layer (LangChain / LangGraph)
    • Implement LLM orchestration pipelines including prompt engineering, API integration, hallucination handling, error handling, and fallback strategies
    • Participate in architecture discussions and the migration from Node.js to a Python/Kotlin stack
    • Integrate and collaborate with Kotlin backend services and engineers
    • Create and maintain automated tests, technical documentation, and CI/CD pipelines
    • Collaborate closely with a cross-functional product team (frontend, Kotlin, business, design)
    Online since: Fri Apr 10 10:04:09 CEST 2026
    Reference number: 869239/1

    QA Engineer for Conversational AI and Test Automation (m/f/d)

    Freelance/Contracting project
    Vienna
    • Work on structured regression and acceptance testing for a multi-country conversational AI product
    • Plan and execute UI testing across web and mobile, including layout, interactions and visual correctness
    • Conduct manual and exploratory testing of AI-driven conversational flows (multi-turn behaviour, routing, fallbacks, quick replies, response correctness)
    • Validate conversational behaviour across stateful, backend-connected flows
    • Plan, execute, and maintain regression and acceptance test cycles across web, mobile, admin, and backend layers
    • Write, maintain, and execute automated tests for web and mobile, including end-to-end and end-to-mock scenarios
    • Apply and maintain mocking strategies to support testability of backend-dependent flows
    • File detailed defect reports including environment context, conversation identifiers, reproduction steps, and evidence
    • Contribute to AI evaluation workflows, including reviewing test traces and evaluation outputs
    • Provide evidence-based QA sign-off in release-cycle-driven UAT and QA processes
    Online since: Wed Apr 08 09:55:48 CEST 2026
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    Did you already know? You can apply for up to 10 jobs at the same time via saved jobs.