Civilingenjör, kemi

Lyten Sweden is seeking a professional Senior Battery Simulation Engineer o join our R&D organisation in Västerås. The Senior Battery Simulation & Modelling Engineer will develop and validate advanced simulation models for battery cells, including performance, degradation, thermal, swelling, and mechanical behaviour. The role supports current NMC products, future battery chemistries, and customer-facing simulation solutions. Key Responsibilities Key responsibilities include (but are not limited to) Battery Model Development Develop and maintain simulation models for battery cells, supporting current chemistry products and next-generation chemistries. Performance Modeling Develop and validate performance models, including ECM-based approaches, to predict battery behavior and support BMS applications. Lifetime & Degradation Modeling Develop and calibrate lifetime prediction models to accurately estimate battery aging, performance degradation, and end-of-life behavior. Thermal Modeling Develop 3D thermal simulation models to predict temperature distribution and support thermal management optimization. Swelling & Mechanical Modeling Develop swelling and mechanical models to predict cell expansion, deformation, and structural behavior throughout battery life. Safety & Venting Simulation Develop simulation models for vent deformation and pressure-related mechanical behavior to support battery safety assessments. Validation & Model Correlation Parameterize, validate, and continuously improve simulation models using experimental and product validation data. Customer Model Delivery Deliver validated simulation models to customers and provide technical support for performance, lifetime, thermal, and mechanical analyses. Cross-Functional Collaboration Work closely with cell design, materials, testing, and customer teams to support battery development and commercialization programs. Requirements Educational background and previous experience required for the role. Qualifications and Experience Bachelor or higher in Electrochemistry/chemistry/material/mechanical or a related discipline 8+ years of experience in lithium-ion battery development and modeling. Strong industrial experience supporting automotive, ESS, or other advanced battery programs. Proven experience developing simulation models for rechargeable battery systems. Experience working directly with OEM customers and customer-facing engineering projects. Experience with prismatic cell development is highly preferred. Specific skills Strong expertise in electrochemical, thermal, degradation, swelling, and mechanical battery modelling. Proficiency in MATLAB/Simulink, Python, COMSOL Multiphysics, LS-DYNA, and ANSYS simulation tools. Experience in model parameterization, validation, optimization, and correlation with experimental data. Knowledge of multi-physics simulation and battery safety analysis is highly desirable. Personal success factors Strong technical leadership, problem-solving, and analytical skills. Ability to work independently and drive complex projects in a dynamic environment. Excellent communication and collaboration skills across teams and customers. Results-driven mindset with a focus on engineering quality and delivery Preferred Experience Experience with prismatic lithium-ion batteries and advanced chemistries (NMC, NMX, Li-S). Knowledge of battery safety, thermal, mechanical, and venting behavior. Experience in multi-physics simulation, digital twin, or cell-to-pack modeling. Experience delivering simulation models for customer applications or BMS development.

Vill du driva tekniska projekt och forma framtidens cirkulära lösningar? För Ragn-Sells Treatment & Detox räkning söker vi nu en engagerad ingenjör inom anläggningsutveckling till deras moderna anläggning Högbytorp i Bro. I denna roll kombinerar du strategiska utredningar med praktisk verksamhetsutveckling för att optimera processer och minska resursförbrukning i en av Sveriges viktigaste branscher. Om tjänsten Ragn-Sells är ett av Sveriges ledande kompetensföretag inom återvinning, miljö och cirkulära materialflöden. Genom dotterbolaget Ragn-Sells Treatment & Detox AB behandlas, avgiftas och återvinns komplexa restprodukter och avfall från samhälle och näringsliv. På anläggningen Högbytorp strax utanför Stockholm bedrivs ett aktivt arbete för att driva omställningen mot en hållbar framtid genom innovativa behandlingsmetoder och långsiktig resursoptimering. I rollen som ingenjör inom anläggningsutveckling kliver du in i en viktig roll där du omsätter tekniska analyser till förbättringar i verksamheten. Du blir en del av ett sammansvetsat team av ingenjörer som tillsammans driver både långsiktiga utvecklingsprojekt och kortsiktiga verksamhetsnära insatser. Arbetet rör allt från infrastruktur och energieffektivisering till införande av nya arbetssätt och tillståndsprövningar. Rollen präglas av ett brett nätverk och omfattande kontaktytor; du har ett nära samarbete med drift- och anläggningspersonal på plats, specialister, projektledare samt anläggningschefer. Du erbjuds: Möjligheten att arbeta inom en samhällsbärande och framtidsinriktad miljöbransch. En roll med stor teknisk bredd där strategi möter praktisk implementering. Trygga anställningsvillkor med kollektivavtal, tjänstepension och friskvårdsbidrag. Kontinuerlig kompetensutveckling, bland annat via Ragn-Sells egen Akademi. Arbetsuppgifter Identifiera, utreda och driva tekniska utvecklingsprojekt kopplade till anläggningarnas framtid Ta fram långsiktiga planer och strategiska underlag för anläggningsutveckling, exempelvis gällande energihushållning och resursoptimering. Utarbeta tekniskt och miljömässigt underlag inför tillståndsprövningar och myndighetskontakter. Delta i och driva tvärfunktionella utvecklings- och förbättringsarbeten tillsammans med driftpersonal och specialistfunktioner. Vi söker dig som Har en avslutad högskole- eller civilingenjörsexamen, företrädesvis inom industriell ekonomi, kemiteknik, maskinteknik, samhällsbyggnad, energi och miljö eller motsvarande tekniskt område. Har några års relevant arbetslivserfarenhet av tekniskt utredningsarbete, projektledning eller process-/anläggningsutveckling. Har mycket goda kunskaper i svenska och engelska, i såväl tal som skrift. Har giltigt B-körkort, vilket krävs för att kunna ta sig till anläggningarna i regionen. Det är meriterande om du har: Tidigare erfarenhet från avfalls-, återvinnings-, energi- eller processindustrin. Erfarenhet av arbete med underlag för miljötillstånd. För att lyckas i rollen har du följande personliga egenskaper: Lösningsorienterad: Du trivs med att bryta ner komplexa tekniska utmaningar till pragmatiska och genomförbara lösningar. Kommunikativ: Du anpassar din kommunikation efter mottagaren och bygger förtroendefulla samarbeten med såväl driftpersonal som beslutsfattare. Nyfiken och initiativtagande: Du håller dig uppdaterad kring teknisk utveckling och driver självständigt dina ansvarsområden framåt med blicken mot förbättring och effektivisering. Vår rekryteringsprocess Denna rekryteringsprocess hanteras av Academic Work och vår kunds önskemål är att alla frågor rörande tjänsten skickas till Academic Work. Vi tillämpar löpande urval och kommer plocka ner annonsen när tillräckligt många kandidater har nått slutskedet i rekryteringsprocessen. Vid ansökan efterfrågas ett CV. Personligt brev använder vi inte som urvalsmetod och behöver därför inte bifogas. Rekryteringsprocessen innehåller två urvalstest: ett personlighetstest och ett test i kognitiv förmåga. Testerna är ett verktyg för att kunna hitta den kandidat med högst potential för tjänsten samt främja jämlikhet, mångfald och en rättvis rekryteringsprocess.

Job Scope High level purpose of function. The Senior Engineer will lead key aspects of electrode process development from lab-scale to mass production. This includes optimizing slurry formulations and coating parameters, resolving manufacturing issues, and collaborating across departments and with vendors to ensure product quality and stability. Key Responsibilities Overall areas of responsibilities and activities Develop and optimize electrode slurry formulation, coating, and calendaring processes. Design experiments (DOE) and analyse test results to identify root causes and implement improvements. Provide technical support for pilot line and mass production scale-up. Coordinate with material vendors and equipment suppliers for process troubleshooting. Mentor junior engineers and review technical documentation. Requirements Educational background and previous experience required for the role Qualifications and Experience Bachelor’s degree with at least 5 years of experience or Master’s degree with at least 3 years in electrode process development or related field. Hands-on experience in LIB manufacturing, R&D, or process engineering is essential. In-depth knowledge of electrode processes such as slurry mixing, coating, drying, and calendaring. Experience with DOE (Design of Experiments) and statistical analysis tools. Practical experience in mass production application or process troubleshooting. Prior experience in working with equipment vendors or material suppliers. Specific skills Familiarity with statistical tools (e.g., Minitab) for process optimization. Understanding of equipment structure and process flow in electrode production. Root cause analysis skills (e.g., FMEA, 5 Whys) and strong technical reporting. Proficiency in English technical communication and documentation. Personal success factors Proactive approach in identifying and solving technical issues. Strong cross-functional communication and coordination skills. Willingness to mentor and guide junior team members. Customer- and quality-focused mindset.

About us At Techrytera AB, recruitment starts with you. We are a staffing and recruitment company with deep expertise and a clear focus on IT and Engineering. With our industry knowledge and close dialogue with both candidates and clients, we create precise matches where the right skills meet the right needs. We believe that a truly great match is not just about a job description – it’s about your experience, your potential, and what you genuinely want to develop in. That’s why we always focus on the individual. By understanding your background, motivations, and ambitions, we can connect you with assignments and roles at our clients where you have the right conditions to grow and make an impact. Our goal is to build long-term and meaningful collaborations – for both you as a candidate and for our clients. Job Description We are looking for an Engineer for an assignment within R&D and analytical technology. The assignment is part of a department responsible for the development of new products used in the manufacturing of leading biological drugs. The role belongs to an analytical technology section that supports different departments with expertise and technologies related to the analysis of resins, intermediates and other substances used in the manufacturing of chromatography resins. You will be part of project teams for new product development as well as product and process care projects. The role includes performing analyses using chromatography and other analytical techniques, developing and optimizing new analytical methods within the scope of the projects, and carrying out method validation. You will also perform assignment analyses from production and quality control departments. Cross-functional collaboration is an important part of the role, including close cooperation with quality control and manufacturing units in troubleshooting and method development. Qualifications: PhD with a minimum of a couple of years’ experience, or MSc with several years´ working experience within analytical chemistry with focus on quantitative chromatography (LC and/or GC), and mass spectrometry. English as a working language. Meriting: Experience from research and project work in an industry setting, statistical knowledge and experience with analytical method development. Excellent computer skills and ability, Swedish as a working language. You enjoy lab work and have a flexible, accurate and structured way of working. You are quality oriented with an analytical attitude. Application When you apply through Techrytera AB, you’re not just applying for a job – you’re starting a dialogue about your career path. We want to get to know you, your experience, and your ambitions so that we can match you with the right opportunities at our clients. Does this sound interesting? Submit your application or get in touch with us to learn more. We look forward to discovering the next step in your career together with you.