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VARO Energy is an integrated fuel supply company, which refines, stores, blends and distributes oil products for the North West European market. The company owns a refinery in Cressier, Switzerland, a minority share in the Bayernoil refinery, Southern Germany, storage and blending facilities as well as distribution and marketing businesses in Benelux, France, Germany and Switzerland. VARO Energy’s shareholders include private investment company Reggeborgh; Carlyle International Energy Partners, an advisory fund which is part of the global alternative asset manager The Carlyle Group; and international energy and commodities company Vitol. The role and its accountabilities VARO Energy is looking for a Product Owner of Business Intelligence (BI) to join VARO’s Business Intelligence Team and drive the delivery of VARO’s BI project roadmap together with the other product owners and the BI Service Line leader. In this role you will be focused on certain areas of the Business and be the main point of contact for new BI solutions. You report to the BI Service Line Leader and will have the opportunity to travel between Switzerland, Germany, Portugal and Netherlands in order to drive the project delivery for the respective business users. Responsibilities Collaborate with the business users and development team to understand requirements and translate them into technical specifications for the development team Define and prioritize the development backlog for the initiatives where you are involved Work towards continuous improvement of BI solutions, existent or new, by making suggestions which maximize business value and adoption Organize testing sessions with the business users, gather the feedback from the testing sessions and pass it on to the development team Ensure the development team is properly utilized in order to maximize value towards the business Work with the BI Service Line leader in controlling actuals, budgets and delivery timelines for the initiatives where you are involved Write project charters for senior manager approval and scope definition, together with the BI Service Line leader Be an Agile champion Qualification Previous experience as a Product Owner or similar role. Previous experience with Business Intelligence tools from a user point of view, ideally Power BI, Analysis Services and Report Services Outstanding communication and presentation skills Experience in working with remote development teams and business stakeholders Some project management experience, namely on cost, plan and scope management Excellent English language skills (verbal & writing), German or Portuguese is highly appreciated Experience in working with Azure Analytics tools is appreciated Personal Characteristics Strong leadership skills Good communication and presentation skills Energetic, driven and eager to implement change and positive disruption Proactive and customer focused “make it happen” mentality Well organized, disciplined International travel required on case by case basis Takes ‘ownership’ of outcome and comfortable in a pressured environment We offer A professional and well networked, international work environment An attractive workplace with development opportunities Long-term cooperation and up-to-date employment conditions Do you fit in this profile? Then please send us your   complete application   with your r esume, all work certificates, all letter of references, diplomas and picture . For more information about VARO Energy, please visit our homepage:   www.varoenergy.com

Tensor Technologies is looking for an enthusiastic and passionate Machine Learning Engineer with 5+ years of commercial experience leveraging large datasets. Tensor Technologies’ research and trading are driven by big data, and the resulting algorithms are run on high-performance hardware using software that is developed in-house. The ideal candidate for this role has a verifiable track record in developing Machine Learning solutions that have delivered significant business impact. This presents a very good opportunity for an individual in the middle stages of their career in or out of finance to participate in very important projects in a fast-paced environment. Your main responsibilities: Develop and improve Machine Learning pipelines with the goal to optimize the trading strategies Develop software and tools around the Machine Learning pipelines to make the trading strategy generation as efficient as possible Research and prototype state-of-the-art Machine Learning models with the focus on optimizing profitability of the trading strategies Assess quality controls around different approaches as well as suggesting new approaches in research Design processing pipelines for terabytes of price data Requirements: 5+ years of commercial development of Machine Learning frameworks and large-data processing systems in the technology or finance industry Ph.D. degree or a Master’s degree with relevant experience in Computer Science, Mathematics, Physics or a related field Excellent programming skills in Python and Scala In-depth experience with Spark (more than black-box usage) Excellent skills in quantitative analysis, programming, and statistical modeling Track record of gathering, matching, and processing large data sets from varied sources and of different characteristics Experience in financial markets or exposure to trading is an advantage What we offer: We apply the newest technologies and strategies in order to gain advantage over our competitors. We rely on quick feedback loops and we release early and often to profit from incremental benefits as they are developed You will be able to challenge your coding and research skills and grow constantly while collaborating with like-minded experts in a dynamic environment that encourages continuous learning. Attractive office locations in the center of Switzerland in Zug and Zurich. The opportunity to join a team that has achieved considerable success in a relatively short amount of time and is now growing the business. A compensation and bonus scheme that’s unprecedented in the industry. Please apply via our careers site. We look forward to getting to know you!

Steig ein, wir freuen uns auf Dich! Die AMAG Group AG ist mit den Marken VW, Audi, SEAT, ŠKODA und VW Nutzfahrzeuge das führende Automobilhandelsunternehmen der Schweiz. Die AMAG Informatik verantwortet mit ihren ca. 130 Mitarbeitenden für alle Konzernbereiche die gesamte IT-Wertschöpfungskette, vom Projekt über die Entwicklung und Integration bis hin zum Betrieb und Support. Connectivity, Autonomes Fahren, Car Sharing und Elektrifizierung verändern unsere Mobilität. Daten und ihre Auswertung mit Künstlicher Intelligenz spielen bei dieser Transformation eine entscheidende Rolle. Dabei verfügt die AMAG über einen einzigartigen Datenschatz rund um das Oekosystem Individualmobilität in der Schweiz – mit Daten aus Fahrzeugverkauf, Leasing, Garagen, Mietwagen und Car Sharing. Die neu gegründete Abteilung Data & Advanced Analytics hat das Ziel, diesen Datenschatz zu managen (Data Culture, Data Community, Data Governance, Data Catalog) und Erkenntnisse mittels Künstlicher Intelligenz zu generieren. Insbesondere führen wir strategische Datenprojekte durch, um eine sichere und wirksame Datennutzung zu ermöglichen. Ziel ist es, sämtliche relevanten Daten in hoher Qualität auszuwerten und diese dem Business zur Verfügung stellen zu können („Daten Demokratisierung“). Doch das Thema Daten beginnt mit dem Menschen, insbesondere mit dem Verständnis für den Wert der Daten (Data Culture) und der Data Community. Denn schon Peter F. Drucker wusste: «Culture eats strategy for breakfast». Daher wirkst Du – neben technischen Projekten – auch aktiv an der Umsetzung einer Data Culture mit und bildest die Schnittstelle zwischen IT und Business. Du gestaltest wesentlich die Zukunft der Datenkultur bei der AMAG und schaffst somit die Grundlage für echte datenbasierte Transformation. Diese Vakanz bietet eine einzigartige Kombination aus Business Relationship und Data Management. Zur Verstärkung suchen wir per sofort oder nach Vereinbarung eine engagierte, fachlich bestens ausgewiesene und teamorientierte Persönlichkeit alsFunktionConsultant Data Culture und Data Management (m/w)Arbeitsort: Cham ZG Pensum: 100 % Das sind deine Aufgaben Du erarbeitest Konzepte zur Data Culture und implementierst diese bei der AMAG Du formst die Data Community bei der AMAG Du wirkst aktiv bei der Konzeptionierung und Etablierung einer «Data Governance» mit Du erarbeitest Konzepte zur Steigerung der Datenqualität Ausserdem auf Deiner Agenda: Du konzipierst und implementierst strategische Datenprojekte rund um Meta Data Management, Data Catalog und Data Marts Du betreibst parallel dazu ein aktives Relationship Management zu den verschiedenen Stakeholdern Das bieten wir dir Eine äusserst spannende und abwechslungsreiche Tätigkeit in einem interessanten und dynamischen IT-Umfeld Eine freundliche Arbeitsatmosphäre in einem offenen, sympathischen Team Zeitgemässe Sozialleistungen und spannende Entwicklungsmöglichkeiten Attraktive Lohnnebenleistungen sowie Rabatte rund ums Auto Ein neues, modernes und offenes Bürokonzept Flexibles und mobiles Arbeiten Ein ganzheitliches Mobilitätskonzept mit Parkhaus, Car-Sharing, E-Bike-Flotte Verpflegungsmöglichkeiten (Restaurant und Kaffeebar) Fitnessbereich zur kostenfreien Nutzung Das bringst du mit Abgeschlossenes Studium der (Wirtschafts-) Informatik, Datenwissenschaften oder ähnliches Mindestens 2 Jahre Berufserfahrung im Bereich Data Culture / Data Community, Data Management / Data Governance Erfahrung in den Themen Data Culture, Data Community, Meta Data Management, Data Catalogs, Data Marts, Datenschutz (DSGVO) und Berechtigungskonzepte Sehr gute kommunikative Fähigkeiten sowie Freude am Umgang mit den verschiedenen Anspruchsgruppen Gute Deutsch- und Englischkenntnisse, weitere Sprachkenntnisse von Vorteil Lösungsorientierung und Neugier Haben wir dein Interesse geweckt?Wir freuen uns auf deine Online-Bewerbung. Kontakt: AMAG Corporate Services AG Group Human Resources Manon JeggeTel.+41 44 846 11 15

Gehörst Du zu den Besten auf Deinem Gebiet? Sind für Dich Leistungsorientierung und Selbstverantwortung wichtige Werte? Hast Du schon mit dem Gedanken gespielt, Dich selbständig zu machen oder unternehmerisch zu betätigen? Dann haben wir mit unserem «Employeneurship» das richtige Modell für Dich. Kombiniere die Sicherheit einer Festanstellung mit den Vorteilen der Selbständigkeit. Unser Modell basiert auf folgenden Säulen: Langfristige Zusammenarbeit in technologisch interessanten Projekten, in denen sich unsere Kunden vom Wettbewerb differenzieren Deine Aufgaben Wir unterstützen unsere Kunden bei der Digitalisierung und Transformation ihrer Applikationslandschaft zu analytisch optimierten Geschäftsprozessen, was spannende und abwechslungsreiche Mandate zur Folge hat. Projekte starten häufig mit einer Beratung und der Erstellung von Prototypen und beinhalten meist Neubau oder Re-Engineering von Front- und Core-Systemen. Die grosse Vielfalt der Fragestellungen und Herausforderungen unserer Kunden, aber auch die Anwendung von bestehenden und neuen Technologien mit agilen Methoden, sind eine grosse Herausforderung. Unser Ziel ist es, die Projekte erfolgreich für unsere Kunden umzusetzen und damit deren Wettbewerbsfähigkeit zu stärken. Anforderungen Mindestens 5–8 Jahre Berufserfahrung in der Architektur, Design und Implementierung von Enterprise Lösungen auf Basis von JEE (Expertenlevel, vorzugsweise in der IT-Beratung) JEE Fullstack - nachgewiesene hands-on Erfahrung im Bereich von Business kritischen Applikationen Erfahrung mit einer modernen Frontend-Technologie - idealerweise Angular, React oder ähnliches Ausgewiesene Erfahrung mit professionellen Software Engineering Methoden wie Domain Driven Design, Clean Code, CI/CD und TDD Erfahrung mit Cloud Deployments (Docker / Kubernetes / Openshift) auf Basis AWS oder Azure Nice to have: Spark, Kafka, Machine Learning Ausgewiesene Kommunikations-Fähigkeit über alle Hierarchien hinweg Flexibilität bezüglich Technologie-Stack und Einsatzgebiet Ausgewiesene Teamfähigkeit durch Arbeit in interdisziplinären Teams Konzeptionelle und analytische Stärke für Beratung Ist in der Lage Kunden zu Coachen und Wissen ins Team weiter zu geben Wir bieten diese Benefits NEUGIERDE, UNTERNEHMERTUM und INDIVIDUALITÄT werden bei uns grossgeschrieben Unternehmensmodell ohne Hierarchien, organisiert in agilen Kompetenz-Zellen als Netzwerken von Experten Sehr attraktives unternehmerisches Gehaltsmodell auf Basis des «Employeneurship»-Modells Karriereentwicklung gemäss persönlicher Interessen auf Basis von Selbst-Verantwortung Sehr flexible Arbeitszeitmodelle: Vereinbarkeit von Beruf, Familie und Privatleben ist uns sehr wichtig Erfolge gemeinsam feiern! Sehr attraktives Gehalt mit individuellem Profit-Sharing Kontakt Für ergänzende Fragen stehe ich Dir gerne zur Verfügung Enes Üzmez Head of Recruiting Tel:  +41 43 540 57 23 Mobil:  +41 76 559 53 54 Mail:  enes.uezmez (at) callista.group https://callista.group/de

At our headquarters in Baar, we are seeking for the breastfeeding / healthcare / operations business unit the Global Data Analyst (m/w) 100% Your responsibilities Gather and organize quality data as appropriate to support the quality decisions and for Q&R reporting of site data Develop and automate data analysis system for Q&R reporting (e.g. dashboards) Conduct exploratory data analyses (EDA) using statistical methods to identify potential trends & insights from data and reports insights to appropriate functions across the site; monitors quality metrics as appropriate for evidence of special cause of variation Facilitate development and maintenance of Q&R data governance procedures with local Quality Management, with a view to ensure compliance of the site. Lead continuous metric improvement efforts and give suggestions for new metrics or Q&R KPIs Support other functions, corporate projects and initiatives where statistical data analysis is needed Advise development and change to digital solutions impacting quality data for continuity of data integrity, reporting, and dashboard Organize and perform trainings within the site on the subject matter CAPA task owner Your qualifications College or University degree in Applied Statistics, Engineering, Computer Science, Math or related Experience with statistical techniques including e.g. data collection, sampling, statistical testing, correlation, regression, ANOVA, time series analysis, survival analysis parametric and non-parametric data, design of experiments and data visualization needed. Experience with data analysis tools such as R, Python, Minitab, Qlik preferred Minimum 2 year experience in MedTech or life sciences with complaint handling, data analysis and computer system validation preferred Experience working in an environment with global objectives preferred Excellent verbal and written communication skills Fluency in German and English both orally and in writing ( C1 level) Knowledge of ISO 13485, ISO 14971, EU MDR, and 21 CFR 820 preferred Strong analytical and deductive reasoning Applies principles of logical thinking to solve practical problems Your opportunity At Medela, you will be joining a global community of colleagues, united by the purpose that drives our business: helping people. Medela exists to advance human health and wellbeing through knowledge-based and innovative human milk and medical vacuum solutions. Our employees are empowered to serve this purpose in a family-owned company that is growing rapidly around the world. We value intensive exchanges, diverse perspectives, and unbureaucratic decisions. You will have the opportunity to develop at an international level, and witness the direct impact your work has on our company’s success. If you are interested in this opportunity, Sabine Zuch, HR Business Partner, is looking forward to receiving your application. For this position we only consider direct applications - thank you for your understanding.

Tensor Technologies is looking for an experienced C++ Software Engineer to join our growing team. We are a young and successful proprietary trading firm in the heart of Switzerland. We build next-generation trading strategies and systems using applied machine learning techniques and cutting-edge technology. Leveraging our fully automated setup, we trade different financial assets on various electronic exchanges around the world. As a C++ Software Engineer, you‘ll be joining and shaping the future of our core engineering team. You will design, code, test, and optimize our proprietary, low-latency trading system. You will develop a deep understanding of trading and exchanges, and will be able to have a direct impact on our trading strategies by collaborating with our traders and quantitative analysts. You’re not attached to tools and technologies, but you focus on solving problems, bring clarity to complexity, and demonstrate smart ways to simplify our trading ecosystem. The right candidate for this role will be comfortable working autonomously, making decisions, and working in a fast-paced, flat team structure. Your main responsibilities Develop a highly competitive, ultra-low-latency trading platform consisting of market data delivery and order submission subsystems Bring new trading ideas and approaches to life, while working very closely with researchers and traders and making sure that the trading code fulfills high production standards Improve the system performance by optimizing network access, hardware utilization, and programming execution Stay on top of changes in exchange protocols Job Requirements You have a Master’s or Ph.D. degree in Computer Science, Mathematics, Physics or a related field You have excellent programming skills using C++ in a Linux (or Unix-like) environment You possess the ability and desire to write simple, well-structured and clean code that is easy to maintain You have in-depth knowledge of low-level network and system programming and have ideally experience in developing low-latency systems You have a solid grasp of computer science, algorithms, memory-, and concurrency models, CPU-architecture, operating systems, networks, relational databases, performance optimization, etc. Experience in statistics / large-scale data processing systems/machine learning and/or grid-based computing is a big plus No finance background is necessary or expected. This is a great opportunity for the right candidate to kick start a career in the financial technology space. What we offer You get the unique opportunity to join a team small enough so that the individual contribution crucially matters yet big enough to compete for the best talent globally You will be a key stakeholder in evolving our business You will be able to partner with a very international team of experienced professionals in a dynamic environment that encourages continuous learning You will be able to grow fast and take on more responsibility while further developing your skills We are committed to applying the newest technology in all areas to stay ahead of our competition We work in an extremely fast-paced environment where we all rely on quick and honest feedback Attractive office locations in both Zug and Zurich We look forward to getting to know you!

Do you like automation? Do you know Linux like the back of your hand? Do you want to work on creating the Web 3.0 infrastructure? Are you excited about joining a startup? We are looking for a team member whose mastery of Linux, Github, Docker and Kubernetes is second to none. Site Reliability Manager - DevOps  Web3 Foundation accelerates the development and adoption of the decentralized web. We’re providing the framework and setting the standards for an ecosystem so that the most cutting-edge projects can work together, multiplying their benefit to society as a whole. We’re building the future of identity, privacy, financial markets and commerce through blockchain and other cryptographic technologies. At the core of this work is Polkadot - a platform that enables blockchains of all kinds to interact and communicate with one another. This is an opportunity to work at the forefront of technological development and join in shaping the future of society for the better.  Responsibilities Participate in on-call rotation, failure resolution, post-mortem analysis and prevention through automation. Assist teams on making the platform components production-ready and provide support on IT-related issues. Take ownership of the different infrastructure-as-code components that build up our platform, adapting them to the evolution of the given requirements. Define automated tools to help the products be timely adapted to end-user requirements, including CI/CD pipelines. Continuously improve the observability of the system and the feedback loops for getting information about potential problems before they happen. Design automated disaster-recovery mechanisms. Requirements Experience designing and maintaining scalable, resilient, performant and observable systems. On-call experience: participation in ops-duty rotations, incident response and post-mortem analysis and prevention. A systematic problem-solving approach, coupled with strong communication skills and a sense of ownership and drive. Solid background in software development. Experience or willingness to learn about cloud-native technologies: kubernetes as platform, Helm as package manager, prometheus and related technologies as the monitoring stack, all working on different providers such as AWS, Google Cloud Platform, DigitalOcean and Azure. A plus Continuous Delivery experience. Interest and background in decentralized technologies, especially blockchain. Prometheus, alertmanager and grafana: create service monitors, write alert rules, create dashboards and panels. Experience using Terraform with a test-driven infrastructure approach. To apply for this position, please submit your CV and a cover letter, telling us a bit about yourself and your motivation to join us by clicking Apply or by email to jobs@web3.foundation .  For more information about us, visit us on Web3 Foundation website: https://web3.foundation   Polkadot website: https://polkadot.network Documentation: https://wiki.polkadot.network

Looking for scientists with a deep understanding of decentralised technologies and an ambition to lead a high performance research team. HEAD OF RESEARCH AT WEB3 FOUNDATION The Web3 Foundation nurtures and stewards technologies and applications for a privacy preserving and decentralised web. We work on a range of cryptographic and consensus protocols that have emerged as crucial building blocks of decentralized systems in general, and the Web3 ecosystem in particular. We are the opposite of a big data company. Our core project at the moment is Polkadot, a protocol designed to connect blockchains and allow them to interoperate, share security, and more. In addition to that, we support the development of a number of technologies that form the Web 3.0 tech stack such as privacy technologies, decentralized messaging, and distributed storage or secret management.   We conduct cutting-edge research that is both theoretically exciting and expected to have a dramatic real world impact by helping to replace centralised infrastructure. To help realise this goal we work closely with academics and development teams to design and then deploy world-class components of large-scale distributed systems. We explore a remarkable array of research topics within our mandate to steward distributed technologies, including: Cryptographic protocols Consensus algorithms Game theory and mechanism design Economics Censorship resistance Privacy technologies Our diverse cryptographic research topics include: Advanced signature schemes Distributed random number generation Zero-knowledge proofs and their optimisations Multiparty computation RESPONSIBILITIES Set the research agenda in alignment with development collaborators Ensure alignment and productivity of the research team members Keep an overview of research topics and participate in research when needed Initiate and manage research collaborations Manage composition of the research team including identifying hiring needs Coordinate efforts to deliver high quality research papers along with good internal documentation Represent the Web3 Foundation at conferences and share technical information with the community REQUIREMENTS Postdoc or professor level experience in Mathematics, Theoretical Computer Science, or a related field, or equivalent background Experience contributing to research communities that require mathematical rigor, preferably including proofs of security and correctness Experience designing cryptographic protocols or distributed algorithms Excellent written and verbal communication skills A PLUS Demonstrated innovation in cryptography or distributed algorithms Experience with blockchain technology Experience mentoring, creating technical documentation or blog posts Experience and proficiency in programming, especially in Rust or related languages, e.g. C, C++, OCaml, Haskell, or JavaScript Demonstrated ability to set and execute a research agenda Experience developing research collaborations and managing contractors BENEFITS Competitive compensation and travel opportunities Regular research retreats at unique locations around Europe Opportunity to work on a diverse team of varied professional backgrounds (i.e. computer science, algorithm design, events, communications, legal, financial products, management consulting, marketing & advertising, etc.)    To apply for this position, we kindly ask you to submit your CV with a cover letter telling us a bit about yourself, your motivation to join us by clicking Apply or by email to  jobs@web3.foundation .  ___ Web3 Foundation website: https://web3.foundation/ Web3 links: https://github.com/w3f/Web3-wiki    Polkadot website: https://polkadot.network/ Polkadot research: http://research.web3.foundation/en/latest/polkadot/

Alex Tosney is recruiting for a Software Developer to join a blockchain technology start-up to work on their proof of stake blockchain platform for distributed applications. This is a permanent position that can be 100% remote based. The main purpose of the role will be to define and implement state of the art technical solutions, that are scalable, measurable and secure. Further responsibilities will include: · Architect scalable backend systems, services, and APIs · Evolve our long-term vision for maintaining and scaling our backend systems · Design high reliability services that can withstand large fluctuations in traffic · Monitor our backend performance, identify performance bottlenecks, and find ways to reliably resolve them · Write backend code that is fast, reliable, but also highly secure · Maintain and evolve our quickly-growing test suite · Collaborate effectively with other staff to solve complex problems. · Provide mentorship and lead strong development practices inside the team. In order to be considered for this role, you will be required to have the following qualifications, skills and experience: · Working experience with Rust and a solid foundation with C++, Java, and/or Scala. · Experience with mathematics and computational mathematics within blockchain domain. · B.S., M.S., or Ph.D. in Computer Science, Math, or another technical field preferred (equivalent professional experience is acceptable) · Expertise in Scala. · Extensive professional experience in a full stack capacity · Experience leading a team of engineers · Experience with blockchain and smart contract technologies, related cryptographic principles, both theory & practice · DevOps knowledge For more information or to apply for this position, please contact Alex Tosney on 0041 (0) 41 7825 08 443 or email atosney@ckqls.ch. Please could you send any correspondence in English. Please quote reference 46898 in all correspondence.

Alex Tosney is recruiting for a Quality Assurance Software Engineer to join a start-up research organisation looking to lead the development and adoption of decentralised web technologies and framework. This is an exciting opportunity to join a fully funded start-up organisation in a permanent position to drive the development of blockchain technology. The main purpose of the role will be to help the grants management team to determine the viability of deliverables from grantees. This will involve quickly understanding different technology stacks, the underlying requirements of the software, and performing functional testing to determine if the requirements have been met. Depending on the project, it may also involve review and inspection of codebases in a variety of languages and frameworks, such as Rust, JavaScript, and node.js. Other duties will include to: - Evaluate grant milestone delivery, including reviewing documentation, compiling their projects, and functional testing of these projects. - Interact with the applying teams, in order to answer their questions and better understand their deliverables. - Interact with relevant teams (e.g., legal, finance, collaborations, community building) at agreed points of the application process. - Help to prepare the decisions for the Grants Committee. - Improve the process of evaluating grant milestone deliverables. In order to be considered for this role, you will be required to have the following qualifications, skills and experience: - Knowledge and understanding of blockchain technologies and applications. - Technical ability to evaluate software implementation: setting up environments; compiling complex projects and their dependencies; reviewing and analyzing code. - Technical ability to test software: reading, writing and evaluating test plans; running and evaluating automated test suites; reviewing and testing functionality. - Ability to work in a variety of development environments and languages. - Approachable and clear communication style. - Experience and proficiency in programming, e.g., in Rust, JavaScript, C, C++. - Experience and proficiency in Docker and VSCode. - Experience with Linux, and other Unix-based OSes. For more information or to apply for this position, please contact Alex Tosney on 0041 (0) 41 7276 793 or email atosney@ckqls.ch. Please quote reference 47060 in all correspondence.