Welcome to Hacon, a leading IT company in the field of digital mobility solutions. As an independently managed company, we are part of Siemens Mobility. Whenever you travel by public transport in Europe, you have already got to know us and our work. At our headquarters in Hanover and at other locations, we have over 500 employees developing software that helps transportation companies worldwide to make sustainable travel as easy as possible. Whether by train, bus, bike or e-scooter: we make mobility easy. Our software solutions helps transport companies to ensure that travelers can travel comfortably and seamlessly: It includes everything from travel planning, reservations, mobility apps and mobile ticketing to comprehensive MaaS solutions and on-demand services. Your work has a direct impact on millions of people and contributes to greener, efficient and connected mobility. The role is within the HAFAS.engine team. The HAFAS.engine product offers a powerful API to mobility platforms, enabling web apps and mobile apps to provide journey planning and other mobility information functionalities to travelers. The core of HAFAS.engine is its routing capabilities, complemented by features like departure boards for public transport and live locations of shared vehicles. HAFAS.engine is utilized by major traveler information systems in Europe (e.g. DB, SBB, ÖBB, SNCF, RENFE, RMV, BVG) and around the world. Join us and shape the future of mobility with us As a (senior) s oftware developer with focus routing algorithm, you will develop HAFAS.engine, the backend of our travel planning and information system. Your responsibilities will include: Your Role: Design and develop innovative routing algorithms, while enhancing our existing solutions. Focus on algorithms for public transport routing in C++, integrating street network routing, and related functionality like name autocomplete and geometric questions - during both preparation and request processing. Deliver clear and reliable solutions that handle the diverse data-driven needs of our customers. Prioritize quality management and help implement changes thoughtfully and carefully. Consider performance in core algorithms, while keeping the overall solution in mind. Understand use-cases and advise product management in defining the product standards Your Profile: Completed studies in engineering, mathematics, computer science or a comparable field, alternatively relevant professional experience in software development. You are passionate about transforming the way we travel by creating the travel information systems of the future. Deep understanding of the mobility ecosystem and its actors. Strong algorithmic background with a first experience in routing algorithms for public transport and intermodal routing. The ability to understand and build complex logic, while also breaking down these topics to be explainable to our B2B customers and travelers. Experience in software development in C++ or Java or similar. Good presentation skills to internal and external stakeholders. Excellent English communication skills, German is a big plus. Our Offer: In our office in Hanover we offer: Family-friendly culture : Hybrid work, flexible working hours, 30 days of vacation, childcare subsidy and open-door policy. Stay mobile throughout the day : nationwide travel pass in Germany (Deutschland-Ticket) and bike leasing (Jobrad). Stay active and relaxed : Gym & access to medical massages. Upskilling and professional development : Internal knowledge sharing & Siemens My Learning World. Financial benefits : Siemens share matching program Healthy and delicious during the day : Bahlsen canteen & snack room. Celebrate and build teams together : Summer & christmas parties, team events like "Hacon on Tour" & "Hacon on Top." Office Location : Centrally located on Lister Meile with a rooftop terrace where you can enjoy BBQs Interested? If you would like some more information about us before apllying, check our Homepage: https://www.hacon.de/en/ Would you like to find out more about our employee benefits? We'll give you the top reasons why you should work for us We look forward to receiving your complete application documents, including your salary expectations. Hacon Ingenieurgesellschaft mbH attaches great importance to equal opportunities. We welcome applications from people with disabilities. haconenglish