Senior Software Engineer (m/w/d) – Teilprojektleitung

Schedule: full-or-part-time Employment: permanent Years of experience: 5-7 Your mission You will assume professional and technical responsibility for several subprojects to ensure they are delivered on time and in accordance with quality standards. You will coordinate these subprojects with the team lead, project manager, other subproject teams, and various client contacts. You will actively influence the planning and management of all subprojects to ensure the successful completion of the overall project. You will contribute across the board to the architecture and direction of the overall project and bring fresh ideas to the team. You will analyze existing systems and develop solutions for modernization and further development. You design and implement new software components based on Java (e.g., using Quarkus). You develop and integrate synchronous (e.g., REST/JSON) and asynchronous interfaces (e.g., Kafka) into existing system landscapes. You actively participate in system integration as well as integration and system testing. You’ll work closely with customers and business units on technical and business coordination. You’ll plan and facilitate sprints (planning, reviews) in an agile environment. You’ll create and prioritize user stories together with stakeholders. Your profile Here are the technical requirements you’ll need: Several years of experience (approx. 5+ years) in software development with Java Experience in IT project management, ideally in managing subprojects in an agile environment Proficiency with relational databases (e.g., PostgreSQL, DB2) Experience working with testing frameworks (e.g., JUnit, Mockito, WireMock) Familiarity with modern development processes (Git, code reviews, CI/CD) Experience with cloud environments (e.g., Azure) and REST interfaces is a plus Knowledge of bill of materials (BOM) systems, e.g., from mechanical or automotive engineering, is a plus but not required Your personal strengths: Analytical and structured thinking An independent, self-organized work style Strong communication skills and a passion for teamwork A desire to take on responsibility and support your team both professionally and technically Willingness to attend our weekly team day in person at our office Fluency in German and English Your benefits Fair Compensation & Full Flexibility: Competitive salary, flexible work hours with a work-time account, and part-time options. You decide how much time you spend working in the office or remotely. Extras on top of your salary: A subsidy for the Deutschlandticket, an EGYM Wellpass, or an Edenred gift card, plus optional JobRad and Corporate Benefits. Retirement planning included: An annual contribution to the company pension plan and private accident insurance. Professional development with a time budget: A fixed number of hours at the Steadforce “Campus” and in our “Center of Competence” for your professional growth, plus participation in conferences and summits. Your setup: You choose your device—whether a MacBook or ThinkPad—and your operating system—macOS, Linux, or Windows. Workation: Work from another EU country from time to time while staying closely connected to your team. Family-friendly: As an award-winning family-friendly company, we support you at every stage of life, for example through our Family Office. Office in Westend: Modern office space with a gaming room, active office, and relaxation room—right next to the U4/U5. Alternatively, free parking is available. Team & Events: A collegial team that supports one another, and shared events such as the New Year’s kick-off party, Salad Wednesday, White Sausage Thursday, and a visit to Oktoberfest.