Electrical Design Engineer – High Voltage (M/F)
Company Description IOTA Group has been supporting its clients for more than 40 years by providing specialized technical expertise for complex international projects, particularly in the energy and infrastructure sectors. A multidisciplinary engineering consultancy providing design, technical engineering, and project management services across infrastructure, energy, rail, and industrial sectors. It supports projects from concept and design through construction and commissioning. Job Description Context: To support electrical infrastructure projects in Switzerland, we are looking for a mid-level High Voltage Design Engineer. You will join an engineering team working on studies and design for electricity network operators. Responsibilities Carry out engineering studies and contribute to the design of HV infrastructure: substations, cables or overhead lines, depending on your area of expertise. Prepare technical documentation, including specifications, drawings, calculations and design reports. Analyse client requirements and propose suitable technical solutions. Collaborate with other engineering disciplines and coordinate technical interfaces. Participate in design reviews and ensure the quality of deliverables. Qualifications Degree in Electrical Engineering or an equivalent qualification. Experience in high-voltage engineering studies and design. Expertise in at least one of the following areas: HV substations, HV cables or overhead lines. Experience within an engineering consultancy, a network operator or an EPC contractor. Experience on projects for Swissgrid or another transmission system operator would be an advantage. English is required; French would be an advantage. MEDIOR experience Additional Information Working Schedule : Resident 5 days per week Starting date : 01/12/2026 Duration of the mission : 6 to 12 months
Responsable Gestion Contractuelle – Site Nucléaire H/F
Description de l'entreprise IOTA GROUP est spécialisé dans l’assistance technique et le recrutement de professionnels qualifiés pour des projets industriels complexes, notamment dans les secteurs de l’énergie, du nucléaire et des infrastructures. Dans le cadre d’un projet industriel d’envergure dans le secteur nucléaire, nous recherchons un Site Contract Manager H/F pour une mission basée à Flamanville (Manche), auprès de l’un de nos partenaires. Description du poste Rattaché au Directeur de Site, vous intervenez en appui à la gestion contractuelle des activités du chantier et contribuez au suivi des engagements contractuels avec le client. Vos principales missions : Accompagner le Directeur de Site dans la gestion des relations contractuelles avec le client. Identifier et formaliser les événements perturbant l’activité du chantier, notamment ceux liés aux interfaces avec le client. Participer à la préparation et au suivi des notifications contractuelles, en collaboration avec le Directeur de Site. Assurer le suivi journalier des heures réalisées par les sous-traitants. Garantir la traçabilité et la qualité des informations contractuelles remontées à la direction du site. Qualifications Compétences et qualités recherchées : Expérience en gestion contractuelle, idéalement acquise sur des projets industriels ou en environnement nucléaire. Bonne compréhension des enjeux contractuels et opérationnels d’un chantier. Excellentes capacités rédactionnelles et relationnelles. Rigueur, méthode et sens de l’organisation. Esprit d’analyse et de synthèse. Capacité à travailler en collaboration avec les équipes opérationnelles et la direction du site. Certifications et habilitations requises : CSQ (Complément Sûreté Qualité). H0B0 (habilitation électrique). Langues : Français et anglais. Informations supplémentaires Poste : Site Contract Manager H/F Localisation : Flamanville, France Démarrage : 2 novembre 2026 Durée : 7 mois (renouvelable) Rythme : Présentiel, 5 jours par semaine Contrats possibles : Freelance, portage salarial
Senior Installation Engineer
Company Description Join IOTA Group, a leading international company specializing in technical assistance and engineering solutions for the Energy, Oil & Gas, and Offshore industries. We are currently seeking an experienced Senior Installation Engineer to join our team and contribute to major international subsea and offshore installation projects on behalf of one of our global industry partners. This opportunity is available in Paris, France, or Lisbon, Portugal, offering the chance to work on challenging offshore projects within a dynamic, multicultural engineering environment. Job Description As a Senior Installation Engineer, you will be responsible for managing and coordinating Installation & Construction (I&C) engineering activities across offshore and subsea projects, ensuring technical compliance, operational readiness, and efficient execution. Key Responsibilities: Lead and coordinate Installation & Construction engineering activities across project packages, tenders, and engineering studies. Act as the key technical interface between engineering teams, project management, clients, and offshore operations. Review the installability of subsea equipment, tooling, and products, including third-party solutions. Coordinate engineering activities related to Umbilical Installation, Flexible Lay, and Lifting Operations. Manage engineering deliverables, technical documentation, schedules, budgets, and resource allocation. Conduct constructability reviews, risk assessments, and operational readiness reviews. Participate in Design Reviews and HAZID workshops, ensuring installation requirements are addressed during project development. Identify, assess, and mitigate installation risks while managing technical changes. Support offshore operations, including vessel mobilisation and offshore installation campaigns. Collaborate with procurement and engineering teams to develop technical specifications and evaluate installation equipment. Provide technical guidance and mentoring to engineers, ensuring compliance with quality, safety, and engineering standards. Promote continuous improvement through lessons learned, innovative installation methodologies, and industry best practices. Qualifications Education & Experience: Master’s degree or equivalent in a relevant engineering discipline. Minimum 6–8 years of professional experience in the offshore/subsea installation industry. Strong technical expertise in Subsea Umbilicals, Risers and Flowlines (SURF) and offshore vessel operations. Proven engineering experience in Umbilical Installation, Flexible Lay, and Lifting Operations. Experience in offshore installation engineering, construction methodologies, and equipment installability. Demonstrated expertise in risk assessments, risk mitigation, and management of change. Ability to coordinate and lead multidisciplinary engineering teams. Experience supporting offshore installation projects, from engineering preparation to execution. Technical & Soft Skills: Strong understanding of subsea installation methodologies and offshore construction operations. Ability to manage technical interfaces across multiple engineering disciplines. Excellent communication, coordination, and problem-solving skills. Ability to mentor and guide junior engineers. Familiarity with HAZID, constructability assessments, and readiness reviews. Proficiency in Microsoft Word, Excel, and PowerPoint. Fluent English, both written and spoken. Portuguese is an advantage. Additional Information Position: Senior Installation Engineer Location: Paris, France or Lisbon, Portugal Industry: Oil & Gas / Offshore / Subsea / SURF Starting Date: Immediate / As soon as possible Duration: Minimum 9 months Mobility: Occasional business trips and site assignments depending on project requirements Offshore Exposure: Participation in vessel mobilisation and offshore installation campaigns Certification: Valid BOSIET certification required for offshore campaigns Languages: English mandatory; Portuguese is a plus
Site Manager – HV/MV Substations
Company Description IOTA Group is an international engineering and technical assistance company supporting major industrial and energy projects worldwide. For one of our leading partners in the energy and power transmission sector, we are seeking an experienced Site Manager – HV/MV Substations to oversee the construction and execution of a high-voltage electrical substation project in Frankfurt, Germany. Job Description As Site Manager, you will take overall responsibility for the on-site execution of a major 110 kV AIS substation project, ensuring compliance with safety, quality, technical, contractual and scheduling requirements. The project involves the installation and integration of 110/11.5 kV power transformers, MV switchboards, AIS equipment, protection and control systems, SCADA and substation automation systems. Key Responsibilities: Manage all site construction activities from mobilisation through Mechanical Completion, Ready for Commissioning (RFC), Energisation and Final Handover. Coordinate civil, structural, high-voltage electrical, protection & control and commissioning activities. Supervise subcontractors, installation teams and multidisciplinary site operations, ensuring compliance with technical specifications and contractual obligations. Ensure effective site preparation, logistics, resource allocation and construction planning. Develop and monitor construction schedules, resource plans, progress reports and project KPIs. Coordinate engineering documentation, technical drawings and construction interfaces with engineering teams and the customer. Implement and enforce HSE policies, Zero Harm principles and QA/QC standards throughout project execution. Oversee Inspection & Test Plans (ITPs), quality inspections and technical compliance. Manage project risks, subcontractor performance, contractual deviations and corrective actions. Coordinate Punch Lists, Non-Conformance Reports (NCRs) and close-out activities. Organise progress meetings and maintain effective communication with engineering, procurement, construction and commissioning teams. Report directly to the Construction Manager based in Grenoble, France. Qualifications Minimum 15 years of experience in HV substation EPC construction projects. Strong background in Electromechanical or Electrical Engineering, with extensive knowledge of MV/HV substations and power systems. Proven experience managing construction activities on 110 kV AIS substations. Demonstrated ability to lead multidisciplinary construction teams and manage subcontractors. Strong understanding of IEC standards, electrical protection, control systems and substation construction requirements. Experience in construction scheduling, project coordination, quality assurance and HSE management. Knowledge of MS Project, AutoCAD, Microsoft Office or similar engineering/project management tools. H2V/B2V electrical accreditations or local equivalent. Excellent communication, organisational and leadership skills. Fluent English and French required. German is considered an advantage. Additional Information Position: Site Manager – HV/MV Substations Location: Frankfurt am Main, Germany Working Schedule: Resident, 5 days per week Starting Date: 16 November 2026 Duration: 6 months (renewable) Contract Type: Freelance or Contract Languages: English and French mandatory; German is a plus Travel: Occasional business trips to Grenoble, France
Electrical commissioning manager
Company Description Global energy technology company supporting the energy transition through innovative solutions for power generation, transmission and decarbonization. The company provides technologies and services across the energy value chain, including gas and steam turbines, generators, transformers, grid technologies and power plant services. Job Description MISSIONS: Develop and implement the overall commissioning strategy and execution plan. Coordinate all commissioning disciplines, including HV Primary Equipment, Protection & Control, SCADA, Telecom and AC/DC auxiliary systems Ensure site preparation, temporary facilities, access roads, logistics organization and interface management for all construction activities. Prepare and manage commissioning schedules, resource plans and mobilization plans Review commissioning procedures, test forms, method statements and switching programs. Verify Electrical Completion (EC) and Ready for Commissioning (RFC) status before testing. Coordinate interfaces with the Construction and Engineering teams. Manage subcontractors, vendor specialists and commissioning engineers. Coordinate SAT, functional testing, interlocking tests and system integration. Lead energization activities in coordination with the Customer and Grid Operator. Monitor commissioning progress, KPIs, punch lists, NCRs and corrective actions. Compile test sheets and test reports signed by the customer Prepare daily, weekly and monthly commissioning reports. Ensure full compliance with Siemens Energy HSE, QA/QC and commissioning procedures Prepare red-marked drawings and the project backup documentation Coordinate final documentation, as-built records and project handover Prepare and deliver customer training sessions upon request Equipment concerned: 1 31,5/40 MVA, 110/11,5kV Power Transformers AIS equipment: Auxiliary & Earthing transformer Disconnector & Earthing Switch MV Switchboards 8 cells. Auxiliary Power Supply facilities including 110V DC battery bank, battery charger, DC and AC main distribution boards, changeover switches. Relay panels and Control panels. DCS, Substation automation system with all the associated equipment and accessories Protection, metering, SCADA, and communications systems. Substation earthing system. Qualifications Electromechanical Engineering background with strong expertise in MV/HV substations and power systems Minimum 15 years of experience in HV substation commissioning. Accreditations: H2V, HC, B2V, BC, BE Essais or local equivalent Language of documents: French, English Language of customer: German and English Extensive experience in 110kV AIS EPC projects Strong knowledge of HV Primary Equipment, Protection & Control, SCADA and AC/DC systems. Knowledge of IEC standards, grid codes and commissioning procedures. Proven leadership and multidisciplinary team management experience Knowledge of IEC standards English and German mandatory. French would be a plus. Additional Information Start date: 15.04.2027 Duration: 4 months Working schedule: Resident 5 days per week, 8h/d
Change Manager-Project Leader
Company Description Global provider of advanced nuclear steam turbine technology and services, supporting the production of reliable, low-carbon electricity. The company specializes in the design, supply, installation, maintenance and modernization of steam turbines and associated equipment for nuclear power plants worldwide. Job Description Change Management Project Leader is responsible to execute Change Management (ChM) at project level, ensuring the correct understanding of the process by the team, ensuring correct ChM implementation according to valid Work Instructions, monitoring relevant KPIs Missions: Prepare, issue and maintain the Change Management Plan according to valid work instruction and minimizing deviations to the bare minimum imposed by client. Liaising with the client on ChM related processes, promoting the company standard approach. Consulting with CM Project Lead on ChM process setup. Ensure the operative implementation of the Change Management plan and procedures by project members (including all product lines and non-technical stakeholders). Ensure that impact analysis is properly done and completeness of Change Requests (CR) form, identifying all relevant stakeholders. Drive the CR assessment with complete analysis and clear action items list. Perform impact minimization analysis of proposed changes. Assess the real need of proposed changes. Provide to PEM and PD exhaustive information for decision making on proposed changes. Approve or reject CR Qualifications Behavioural and/or Technical Know-how Mandatory (MUST) Knowledgeable with the following Standards : International Atomic Energy Agency (IAEA) TECDOC-1335, Configuration Management in Nuclear Power Plants, January 2003, International Atomic Energy Agency (IAEA) SSR-65, Application of Configuration Management in Nuclear Power Plants International Organization for Standardization ISO10007, Quality Management Systems – Guidelines for Configuration Management, ISO 19443:2018 Quality management systems Specific requirements for the application of ISO 9001:2015 by organizations in the supply chain of the nuclear energy sector supplying products and services important to nuclear safety (ITNS). (if involved in nuclear Projects) Desirable (NICE TO HAVE) Knowledgeable in using ISO Standards such as: International Organization for Standardization (ISO) 9001, Quality Management Systems Requirements International Organization for Standardization (ISO) 14001, Environment Management Systems Requirements with guidance for use Use commercial Software for CM subject matters such as SPF®, Doors Next Gen®, Enovia®,etc… Hand-on experience with specifying IT Tool development for ChM subject matters Language skills Mandatory (MUST) English Fluent Additional Information Working Schedule : Resident 5 days per week Starting date : 02/11/2026 Duration of the mission : 12 Months
SURF Structures Engineer
Company Description IOTA Group is recruiting a Senior SURF Subsea Structures Engineer for one of its international partners in the Oil & Gas industry. The position supports a major ultra-deepwater offshore development project in Namibia, involving an FPSO designed to process approximately 160,000 barrels of oil per day, operating in water depths of approximately 3,000 metres, with up to 40 subsea wells. Based in London, United Kingdom, you will oversee subsea structures engineering activities throughout the Engineering, Procurement, Supply, Construction and Commissioning (EPSCC) phases. Job Description Reporting to the SURF Technical Manager, you will be responsible for the technical supervision, design review, procurement and fabrication follow-up of subsea structures throughout the project execution phase. Key Responsibilities: Lead and coordinate subsea structures engineering activities across the EPSCC phases. Oversee the detailed design and timely delivery of FLETs, ILTs, foundations, pipe supports/sleepers, anchoring piles, lateral buckling and pipe-walking mitigation structures. Review and validate engineering studies, technical drawings, specifications, calculations and procedures submitted by SURF contractors and suppliers. Review in-place and installation analyses, ensuring compliance with applicable international standards and project specifications. Monitor procurement, fabrication, transportation, installation and pre-commissioning activities. Supervise contractor and fabrication yard performance, identifying technical deviations, constructability issues and potential schedule impacts. Ensure compliance with HSE, QA/QC, technical and contractual requirements throughout project execution. Coordinate technical interfaces with SURF Installation, SPS, FPSO, Fabrication and Field Operations teams, as well as external contractors and third parties. Support project reviews, risk assessments, technical reporting and engineering optimisation. Provide technical expertise to the SURF Technical Manager and contribute to effective project execution, cost optimisation and schedule performance. Qualifications Master’s degree in Engineering or a relevant technical discipline. Minimum 15 years of experience in subsea structures engineering, including detailed design and fabrication. Proven experience on large offshore Oil & Gas SURF deepwater EPCI projects. Strong technical expertise in FLETs, ILTs, subsea foundations, pipe supports, sleepers and anchoring systems. Experience supervising engineering contractors, suppliers and fabrication yards. Solid understanding of subsea structures installation, transportation and constructability challenges. Technical Skills Good knowledge of international engineering standards, including DNV, ASME, API and ISO. Practical experience with engineering software such as ANSYS, Abaqus, SACS, AutoCAD, SolidWorks and OrcaFlex. Strong understanding of geotechnical engineering applied to subsea structures. Experience with subsea equipment integration, including subsea connectors, MQC plates, electrical harnesses, e-SCM, electrical actuators and dosing valves. Ability to review detailed engineering documentation and identify technical risks and non-conformities. Additional Information Location: London, United Kingdom Project: Major ultra-deepwater Oil & Gas development in Africa Starting Date: February 2027 Contract Duration: 12 months, renewable (very long project) Working Schedule: Residential – 5 days per week Candidate Origin: Open to all nationalities Required Language: English Travel: Frequent business travel / project missions may be required
SAFETY DESIGN SPECIALIST – HSE
Description de l'entreprise For over 40 years, IOTA Group has supported its clients in their international expansion, combining compliance, agility, and seamless local integration in more than 150 countries. Support our client’s Safety Design team in delivering HSE engineering studies for Oil & Gas projects, ensuring compliance with international safety standards, regulations, and project requirements. Description du poste Perform HSE design studies, including hazardous area classification, fire protection, Fire & Gas detection, blast protection, and cryogenic leak protection. Conduct environmental impact studies covering waste, discharges, and air emissions. Lead risk assessments and participate in HAZID, HAZOP, and SIL reviews. Review plant layouts and coordinate HSE interfaces with engineering disciplines, clients, and subcontractors. Ensure quality and timely delivery of technical documents and address client comments. Monitor suppliers, contribute to continuous improvement, and promote HSE engineering best practices. Qualifications Engineering degree or equivalent, preferably with a specialization in industrial risks. Process or Chemical Engineering background is an advantage. Minimum 15 years of Oil & Gas engineering experience, including at least 10 years in HSE. Strong knowledge of international standards and regulations, including API, NFPA, and IP. Knowledge of French ICPE/SEVESO regulations and permitting is preferred. Fluent English; basic French is an advantage. Informations supplémentaires Location: Rueil-Malmaison, France Start Date: December 2026 Duration: 3–6 months Working Hours: Monday to Friday, 9:00 AM–6:00 PM
Directeur de travaux en préparation de chantier
Description de l'entreprise Notre client est un acteur majeur de l’industrie nucléaire, spécialisé dans le traitement et le recyclage des combustibles nucléaires usés. Il pilote des projets industriels d’envergure portant sur la conception, le développement et la modernisation d’installations nucléaires complexes, dans le respect des exigences de sûreté, de qualité et de performance industrielle. Description du poste Dans le cadre de la préparation de plusieurs chantiers nucléaires, vous travaillerez en équipe sur l’étude de la construction de bâtiments nucléaires neufs. Vos missions principales : Encadrer une équipe d’ingénieurs pour mener à bien l’étude de constructibilité du bâtiment Gestion du plan de charge Recherche de méthodes constructives Dimensionnement des installations de chantier Etudes de plusieurs scenarios de construction Analyse des différentes solutions possibles Découpage en plots de l’ouvrage Etablissement d’un plan d’installation de chantier Etude des contraintes d’environnement Etudes des contraintes d’approvisionnement Etudes de flux piétons et véhicules Analyse de saturation de grue Etudes de méthodes de ferraillage Etudes de méthode de coffrage Etablissement de ratio et de plannings Travail sur maquette 3D Etude de méthodes en rupture Rédaction de note technique Présentation d’étude sur support power point Vous travaillerez avec : Des ingénieurs génie civil Un ingénieur méthodes Un BIM manageur Un Projeteur Nos chantiers vous offriront l’opportunité d’évoluer selon les besoins et vos envies vers tout autre corps d’état. L’équipe actuelle, multidisciplinaire et expérimentée saura vous accompagner dans vos premiers pas sur vos missions. Un programme de formation à la fois règlementaire et sur mesure sera mis en place à votre arrivée. Un compagnonnage et un circuit d’arrivée, ponctué de rencontres et de présentation des activités de la BU vous seront proposés. A la suite de phase de préparation de chantier (jusqu’en 2030) le poste pourra évoluer vers la direction de chantier en réalisation. Qualifications Profil souhaité Idéalement, un niveau Ingénieur Génie civil sénior ou équivalent. Vous bénéficiez d’une expérience de 20- ans sur chantier et/ou en bureau d’étude avec une expérience de 10 ans en gestion d’équipes de cadres. Vous avez de très bonnes capacités rédactionnelles (Notes techniques) et d’analyse documentaire et vous maîtrisez très bien les outils informatiques Vous connaissez les contraintes de l’industrie nucléaire (processus, documentation) Vous avez développé une culture projet (idéalement en maîtrise d’œuvre) Vous souhaitez renforcer vos compétences en préparation de chantier, en gestion de contrats et en encadrement d’équipe Vous êtes rigoureux, très méthodique et très organisé (travail sur de multiples projets à la fois,…) et vous avez de bonne capacité à gérer votre temps et vos priorités (flexibilité, agilité) Vous avez une bonne capacité à travailler en équipe et êtes dotés d’un bon relationnel Vous avez une expérience chantier en réalisation
Technical field advisor- Vacuum pump commissioning
Company Description Global provider of advanced nuclear steam turbine technology and services, supporting the production of reliable, low-carbon electricity. The company specializes in the design, supply, installation, maintenance and modernization of steam turbines and associated equipment for nuclear power plants worldwide. Job Description The assignment involves providing technical field advisory services for the mechanical commissioning of the following equipment: Three PSL18 rotary vane vacuum pump skids, each driven by an electric motor. Booster steam ejectors. Skid-mounted PLC control system. Key Responsibilities Provide technical guidance and support to the client during the initial commissioning phase, ensuring correct equipment installation and alignment, component inspections, system start-up, and functional testing. Advise on the planning, scheduling, and organization of commissioning activities to ensure efficient execution. Troubleshoot equipment and system malfunctions, identify root causes, and support the implementation of design modifications where required. Provide technical advice on the operation, adjustment, and maintenance of vacuum pumps throughout the commissioning phase. Monitor commissioning activities and document any deviations, procedural shortcuts, or potential errors by the client’s commissioning team, helping to protect technical and contractual interests. Collect and document lessons learned, operational feedback, and relevant technical information for future projects. Coordinate and maintain effective communication with the client, subcontractors, and other site commissioning stakeholders, in line with the project strategy. Ensure all activities are carried out safely and efficiently, in full compliance with site EHS requirements and applicable procedures. Maintain accurate quality records and ensure proper documentation of non-conformities, in accordance with the client’s quality management and documentation requirements. Prepare and submit a comprehensive end-of-service report summarizing the activities performed, technical observations, identified issues, corrective actions, and lessons learned. Expected Deliverables Technical field advisory support throughout the commissioning activities. Feedback on equipment installation, alignment, start-up, and functional testing. Technical troubleshooting support and recommendations for corrective actions. Documentation of deviations, non-conformities, and relevant quality records. Collection of operational feedback and lessons learned. Final end-of-service report. Qualifications Language: English language mandatory in speaking and writing. Russian and/or Turkish is nice to have Additional Information Working scheme: 9h/d, 6 d/w Mission duration : 12 weeks, intended from 4rth of January 2027