Senior Software Engineer - Machine Learning (all genders)

Senior Software Engineer - Machine Learning (all genders)MenuAll JobsCareers HomeOur CultureToggle accordionPerks & BenefitsDiversity & InclusionSustainabilityWhat We DoToggle accordionJob CategoriesEarly CareersWhere We WorkHow We HireBlogENDEAll JobsSenior Software Engineer - Machine Learning (all genders)LocationGermany - BerlinContractFull timeJob CategorySoftware Engineering - Machine LearningApplyBack to job descriptionApplication FormFirst Name*Last Name*Email*Country Code*Germany (+49)---Afghanistan (+93)Åland Islands (+358)Albania (+355)Algeria (+213)American Samoa (+1)Andorra (+376)Angola (+244)Anguilla (+1)Antigua and Barbuda (+1)Argentina (+54)Armenia (+374)Aruba (+297)Australia (+61)Austria (+43)Azerbaijan (+994)Bahamas (+1)Bahrain (+973)Bangladesh (+880)Barbados (+1)Belarus (+375)Belgium (+32)Belize (+501)Benin (+229)Bermuda (+1)Bhutan (+975)Bolivia (+591)Bonaire, Sint Eustatius, and Saba (+599)Bosnia and Herzegovina (+387)Botswana (+267)Brazil (+55)British Indian Ocean Territory (+246)British Virgin Islands (+1)Brunei (+673)Bulgaria (+359)Burkina Faso (+226)Burundi (+257)Cabo Verde (+238)Cambodia (+855)Cameroon (+237)Canada (+1)Cayman Islands (+1)Central African Republic (+236)Chad (+235)Chile (+56)China (+86)Christmas Island (+61)Cocos (Keeling) Islands (+61)Colombia (+57)Comoros (+269)Congo (+242)Congo, Democratic Republic of the (+243)Cook Islands (+682)Costa Rica (+506)Côte d'Ivoire (+225)Croatia (+385)Cuba (+53)Curaçao (+599)Cyprus (+357)Czechia (+420)Denmark (+45)Djibouti (+253)Dominica (+1)Dominican Republic (+1)Ecuador (+593)Egypt (+20)El Salvador (+503)Equatorial Guinea (+240)Eritrea (+291)Estonia (+372)Eswatini (+268)Ethiopia (+251)Falkland Islands (+500)Faroe Islands (+298)Fiji (+679)Finland (+358)France (+33)French Guiana (+594)French Polynesia (+689)Gabon (+241)Gambia (+220)Georgia (+995)Ghana (+233)Gibraltar (+350)Greece (+30)Greenland (+299)Grenada (+1)Guadeloupe (+590)Guam (+1)Guatemala (+502)Guernsey (+44)Guinea (+224)Guinea-Bissau (+245)Guyana (+592)Haiti (+509)Holy See (Vatican City State) (+39)Honduras (+504)Hong Kong (+852)Hungary (+36)Iceland (+354)India (+91)Indonesia (+62)Iran (+98)Iraq (+964)Ireland (+353)Isle of Man (+44)Israel (+972)Italy (+39)Jamaica (+1)Japan (+81)Jersey (+44)Jordan (+962)Kazakhstan (+7)Kenya (+254)Kiribati (+686)Korea, Democratic People's Republic of (+850)Korea, Republic of (+82)Kosovo (+377)Kosovo (+381)Kosovo (+383)Kosovo (+386)Kuwait (+965)Kyrgyzstan (+996)Laos (+856)Latvia (+371)Lebanon (+961)Lesotho (+266)Liberia (+231)Libya (+218)Liechtenstein (+423)Lithuania (+370)Luxembourg (+352)Macao (+853)Madagascar (+261)Malawi (+265)Malaysia (+60)Maldives (+960)Mali (+223)Malta (+356)Marshall Islands (+692)Martinique (+596)Mauritania (+222)Mauritius (+230)Mayotte (+262)Mexico (+52)Micronesia, Federated States of (+691)Moldova (+373)Monaco (+377)Mongolia (+976)Montenegro (+382)Montserrat (+1)Morocco (+212)Mozambique (+258)Myanmar (+95)Namibia (+264)Nauru (+674)Nepal (+977)Netherlands (+31)New Caledonia (+687)New Zealand (+64)Nicaragua (+505)Niger (+227)Nigeria (+234)Niue (+683)Norfolk Island (+672)North Macedonia (+389)Northern Mariana Islands (+1)Norway (+47)Oman (+968)Pakistan (+92)Palau (+680)Palestine (+970)Panama (+507)Papua New Guinea (+675)Paraguay (+595)Peru (+51)Philippines (+63)Pitcairn Islands (+64)Poland (+48)Portugal (+351)Puerto Rico (+1)Qatar (+974)Reunion (+262)Romania (+40)Russian Federation (+7)Rwanda (+250)Saint Barthelemy (+590)Saint Helena, Ascension and Tristan da Cunha (+247)Saint Helena, Ascension and Tristan da Cunha (+290)Saint Kitts and Nevis (+869)Saint Lucia (+1)Saint Martin (+590)Saint Pierre and Miquelon (+508)Saint Vincent and the Grenadines (+1)Samoa (+685)San Marino (+378)Sao Tome and Principe (+239)Saudi Arabia (+966)Senegal (+221)Serbia (+381)Seychelles (+248)Sierra Leone (+232)Singapore (+65)Sint Maarten (+1)Slovakia (+421)Slovenia (+386)Solomon Islands (+677)Somalia (+252)South Africa (+27)South Sudan (+211)Spain (+34)Sri Lanka (+94)Sudan (+249)Suriname (+597)Svalbard and Jan Mayen (+47)Sweden (+46)Switzerland (+41)Syria (+963)Taiwan (+886)Tajikistan (+992)Tanzania (+255)Thailand (+66)Timor-Leste (+670)Togo (+228)Tokelau (+690)Tonga (+676)Trinidad and Tobago (+1)Tunisia (+216)Turkey (+90)Turkmenistan (+993)Turks and Caicos Islands (+1)Tuvalu (+688)U. S. Virgin Islands (+1)Uganda (+256)Ukraine (+380)United Arab Emirates (+971)United Kingdom (+44)United States Minor Outlying Islands (+1)United States of America (+1)Uruguay (+598)Uzbekistan (+998)Vanuatu (+678)Venezuela (+58)Vietnam (+84)Wallis and Futuna (+681)Western Sahara (+212)Yemen (+967)Zambia (+260)Zimbabwe (+263)Phone Number*Résume*Attach FilePDF only. Maximum file size: 10 MB.Cover LetterAttach FilePDF only. Maximum file size: 10 MB.LinkedIn ProfileHow did you hear about this job?Please enter your earliest possible starting date.Please tell us your salary expectations (annual gross salary, number format without special characters)*Attach a file, if applicable.Attach FilePDF only. Maximum file size: 10 MB.Are you currently based in the European Union or do you possess a valid work permit/residence title for the European Union (EU)?*Yes, I am an EU/EEA/Swiss citizen or hold a valid work permit.No, I would require visa/a work permit to work.Are you employed by any of Zalando entities?*Yes, About You GroupYes, Other EntityNo, former temporary workerNoI identify as*ManWomanNon-binaryPrefer not to sayWe process your gender for statistical reasons and separated from the recruitment process to foster inclusivity and diversity. Learn more in our Privacy Information.Please read our privacy information before you submit your application.In the case that I have provided data which could be considered sensitive in my application (e.g. sexual orientation, ethnic origin, political opinions, health, criminal record), I explicitly agree that Zalando may process my application containing this data during the application process.Note: In general, we do not ask you to provide us with any sensitive information. In the case that you provided us with sensitive information, we need your consent to be able to process your application.The Lounge Assortment Optimisation team builds the decision products behind a better assortment and customer experience. Our portfolio combines:Optimisation systems that improve how the assortment is planned and operated;Forecasting products that estimate demand, sell-through, and commercial outcomes; andGenerative AI solutions that improve product curation, content creation, and operational workflows.As a Senior Software Engineer (Machine Learning), you will make these products reliable in production. You will build the data, software, deployment, and monitoring foundations that allow models to move safely from experimentation into daily commercial use.This is an engineering role at the intersection of data platforms, machine learning, optimisation, and product development. You will work closely with Applied Scientists, Product Managers, Engineers, and commercial stakeholders to turn ambiguous problems into trusted, scalable systems.INCLUSIVE BY DESIGNAt Zalando, our vision is to be the leading pan-European ecosystem for fashion and lifestyle e-commerce - one that is inclusive by design. We only assess candidates based on qualifications, merit, and business needs. We welcome applications from people of all gender identities, sexual orientations, personal expressions, racial identities, ethnicities, religious beliefs, and disability statuses. We only want to know why you’re great for this role, so please avoid including your picture, age, and marital status in your CV as well.We want to provide you with a great candidate experience. Please feel free to inform us of any accommodations you may need, so we can best support and assist you throughout the hiring process.do.BETTER - our diversity & inclusion strategy: https://jobs.zalando.com/en/our-culture/diversity-and-inclusionWHAT WE’D LOVE YOU TO DO (AND LOVE DOING)Build and operate production systems for optimisation, forecasting, machine learning, and Generative AI use cases.Design scalable data and ML pipelines using Python, Databricks, Spark, Airflow, and dbt, with clear data contracts and reliable failure handling.Enable Applied scientists to develop and evaluate models efficiently by providing reusable training, evaluation, deployment, and experiment-tracking capabilities.Productionise models: define dependable inputs and outputs, automate deployment, monitor quality and performance, and make model behaviour traceable in production.Develop and operate workloads in the appropriate execution environment: Databricks jobs for distributed data and ML processing, and Dockerised applications running as Kubernetes pods where that runtime is needed.Build operational dashboards, alerts, and runbooks so that users and engineers can understand system state, identify issues, and respond effectively.Work with product and commercial partners to convert business rules and decision requirements into maintainable software components.Raise the engineering bar through pragmatic standards for system design, testing, code review, CI/CD, observability, and operational ownership.WE’D LOVE TO MEET YOU IF You have 3+ years of experience building and running data or ML systems in production, for example in MLOps, data engineering, ML platforms, or ML product development.You write maintainable production Python and follow established software-delivery practices, including automated testing, code review, and CI/CD.You're strong in software engineering fundamentals: reliability, scalability, observability, and maintainable system design.You understand how cloud workloads are deployed and run, including AWS, Docker containers, and Kubernetes-based execution.You communicate clearly with both technical and non-technical stakeholders and enjoy turning ambiguous problems into dependable systems.Experience with Generative AI products, including LLM evaluation and monitoring, is a plus. Familiarity with AI-assisted development tools such as Codex or Claude Code or Co-pilot is welcome.OUR OFFERZalando provides a range of benefits, here’s an overview of what you can expect. Ask your Talent Acquisition Partner to learn more about what we offerEmployee shares program40% off fashion and beauty products sold and shipped by Zalando, 30% off Lounge by Zalando, discounts from external partners2 paid volunteering days a year27 days of vacation a year to start for full-time employeesRelocation assistance available (subject to prior agreement)Family services, including counseling and supportHealth and wellbeing options (including Wellhub, formerly Gympass)Mental health support and coaching availableDrive your development through our training platform and biannual peer-to-peer reviewABOUT LOUNGE BY ZALANDOLounge by Zalando is an online outlet for fashion and lifestyle products in +20 European countries. We offer our members daily, time-limited sale campaigns with discounts of up to 75% off the recommended retail price. However, Lounge by Zalando is so much more than discounts. Our strength lies in our focus on fashion and lifestyle brands: from sought-after labels to niche brands, from famous international names to trendy luxury brands, we make sure to meet the fashion taste of all our customers, who are always on the hunt for the best products at the best prices. Working with our brand partners, we're pioneering innovative supply-chain and production processes and offer them an impactful and smart solution, creating a new way to shop for fashion - and a new way to sell it.https://www.zalando-lounge.dePlease note that all applications from this job page must be completed using the online form - we do not accept applications via e-mail. Once reviewed, our recruiters will contact applicants via an official Zalando email address (@zalando.de).In some cases we also work with a selection of headhunters and agencies to fill specific roles. Please note that neither Zalando nor our recruiting partners will ask for any kind of payment to apply for a job or attend an interview.If you have any questions about our recruitment process, please take a look at our FAQ page.ApplySoftware EngineeringOur Software Engineering teams deploy software extensively, managing a broad set of applications and conducting thousands of deployments per week. The Software Engineering team enables Zalando as Europe’s number one multi-brand, digital platform for fashion, beauty, and lifestyle for our partners and customers. As a Zalando Software Engineer, you’ll be part of a community of thousands of colleagues across Europe. Learn MoreSoftware EngineeringAbout ZalandoIt’s the perfect time to join Zalando on our journey to build the leading pan-European ecosystem for fashion and lifestyle e-commerce. Help us offer an inspiring and quality multi-brand shopping experience for fashion and lifestyle products to about 50 million active customers in 25 markets. Or be part of our logistic infrastructure, software or service capabilities to help brands and retailers run and scale their entire e-commerce business, on or off Zalando. Join our Zalando ecosystem, to enable positive change for the fashion and lifestyle industry. Learn more about our cultureCareers HomeOur CultureToggle accordionPerks & BenefitsDiversity & InclusionSustainabilityWhat We DoToggle accordionJob CategoriesEarly CareersWhere We WorkHow We HireBlogAll JobsZalando ShopZalando CorporateZalando LoungeZalando OutletFollow us onLegal NoticePrivacy InformationData Preferences© 2025 Zalando SE All rights reserved.