Senior Rust Software Engineer - Banking Platform (m/f/x)

Mendix Is a Low-code App Development Platform
First, what is low-code? Low-code is a visual approach to software development that enables you to abstract and automate every step of the application lifecycle. Gartner predicts that “by 2024, low-code application development will be responsible for more than 65% of application development activity.” Mendix is repeatedly ranked a Leader in analyst reports from Gartner and Forrester. In the 2021 Gartner® Magic Quadrant for Multiexperience Development Platforms, Mendix placed at the very top of the Leaders quadrant.

The Mendix platform was created to promote collaboration between Business & IT teams. Thousands of forward-thinking companies around the world like Ford Auto, Zurich Insurance, Rabobank Netherlands and Red Bull, can unleash their best ideas faster with the help of the Mendix platform.

Mendix Is a Siemens Business
Siemens is a Top 10 Global Software Company and a leader on Fast Company’s Most Innovative Companies in the World! With the acquisition of Mendix in 2018, Siemens Digital Industries Software is driving transformation to enhance the digital enterprise where engineering, manufacturing and electronics meet the future of innovation. Mendix employees have the opportunity to work in a hyper-growth environment with the support of Siemens’ unbeatable market position and resources.

About The Role
Mendix, a Siemens business, powers hybrid agentic workforces by enabling organizations to build, scale and orchestrate agents and applications faster by combining low-code, AI, data, and integrations into a unified platform.

The Technical Solutions Marketing team builds technical credibility for Mendix through validated architectures, reusable proof points, and real-world implementations. In this role, you will work directly with customers and the field to prove high-value use cases through lighthouse implementations, then package what works into reusable patterns, components, and technical narratives that scale across GTM and delivery ecosystems.

Responsibilities

• Design and implement customer-facing prototypes and lighthouse implementations to validate high-value AI and integration use cases.
• Lead strategic workshops and technical deep dives with customers and field teams, especially for agentic AI workflows and complex integrations.
• Turn validated customer work into reusable assets: reference architectures, blueprints, accelerators, and repeatable patterns.
• Serve as the deep technical owner for agentic system design, including tool use, orchestration, and multi-agent patterns.
• Design and maintain complex integration architectures across enterprise platforms and data systems.
• Ground GTM positioning and storytelling in validated technical proof points, supporting high-impact moments like executive demos and analyst briefings.

Requirements

• Demonstrable, hands-on experience designing and building agentic AI systems in production-realistic environments (tool use/function calling, orchestration/planning, multi-agent patterns where appropriate).
• Strong practical knowledge of LLM application architecture, including retrieval (RAG), grounding, prompt/system design, and structured outputs.
• Experience implementing evaluation and reliability loops (test harnesses, offline/online evals, monitoring, feedback, iteration) and guardrails (safety, policy, data controls).
• Proven ability to integrate agentic workflows with enterprise systems and data (APIs, events, identity, governance) and to design complex integration architectures.
• Strong background in system architecture and end-to-end solution delivery (security, scalability, reliability, observability, deployment readiness).
• Experience with enterprise platforms and ecosystems (Siemens stack a plus), data platforms, and modern AI tooling.
• Ability to translate complex technical capabilities into reusable patterns, reference architectures, and clear technical narratives for GTM and customer contexts.
• Strong communication and collaboration skills across Product, GTM, engineering, and customer stakeholders.
• Mendix experience is a plus.

What Success Looks Like

• Lighthouse customer implementations that prove value, de-risk adoption, and generate validated technical proof points.
• Packaged assets (patterns, blueprints, components, playbooks) reused across GTM and adopted by Services/partners for repeatable delivery.
• Reliable, scalable demo and workshop environments that consistently showcase complex AI/data/integration scenarios.
• A strong feedback loop into Product and PMM informed by real customer builds.

Why this role
This role sits at the intersection of deep technical work and real business impact, and plays a central part in how Mendix's AI and integration capabilities are proven, packaged, and scaled.

You will design and validate the architectures that become the foundation for how customers adopt the platform, how Services delivers at scale, and how GTM tells a credible technical story.

Working At Mendix
Mendix has been recognized as a Best Cloud Computing Company to Work For by Forbes. With offices in 16+ countries including headquarters in Rotterdam and Boston, Mendix provides an international playground to truly impact the world through low-code.

While Each Employee Brings Their Own Unique Cultures And Personalities To The Workplace, We Collectively Live By Our Mendix Blue Guiding Principles

• We put the customer first - Without our customers, we have no business. So, if you act in the best interest of our customers, always…you belong here.
• We think big- We work to have a meaningful, lasting impact on the world. So, if you aim high and think long term…you belong here.
• We innovate- We want to be what happens next. So, if you ask “what if?” and work to find a way or make one…you belong here.
• We nurture talent- We look, not just at the sum of what an individual has done, but at the potential of who they can be. So, if you’re up for learning from your failures…you belong here.
• We hear every voice- Inflated egos don’t last here, humility does. So, if you share credit and ensure that the best ideas win – regardless of who they come from…you belong here.
• We own it - If something needs doing, we do it. So, if you focus on the outcome, and take initiative to get it done…you belong here.
• We have fun- We use laughter as a common language. We can ask for help and we’re happy to give it. So, if you find joy and purpose in what you do…you belong here.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Sorge gemeinsam mit uns für die digitale Zukunftsfähigkeit der Bundeswehr.

Deine Aufgaben:

• Betrieb, Pflege und Wartung bestehender IT-Verfahren, Services und Applikationen mit KI-Bezug
• Durchführung regelmäßiger Wartungsmaßnahmen zur Sicherstellung der Funktionsfähigkeit und Sicherheit von KI-Komponenten
• Sicherstellung des Betriebs von KI-gestützten Suchsystemen (z. B. SearchGPT), inklusive Anbindung neuer Datenquellen und laufender Anpassungen
• Betreuung und Weiterentwicklung generativer KI-Technologien im produktiven Einsatz
• Etablierung und Durchführung eines strukturierten Auftragsmanagements für Wartungs- und Betriebsprozesse, Erstellung von Betriebskonzepten, Leitfäden und Lösungsskizzen
• Training, Feinjustierung und Monitoring von KI-Modellen im laufenden Betrieb
• Einarbeitung in technische Dokumentation und Deployment-Prozesse

Dein Profil:

• Abgeschlossenes fachbezogenes Hochschulstudium oder vergleichbare Qualifikation
• Relevante Zertifizierungen (z. B. VMware Certified Professional ab Version 6, ITIL Foundation)
• 2 Jahre Erfahrung mit Docker, Podman o.Ä., Erstellung und Optimierung portabler Images (Containerisierung)
• 2 Jahre Erfahrung mit CI/CD Pipelines (z.B. GitLab, Github-Actions, Jenkins, ArgoCD), Test-Driven-Development, Monitoring (Prometheus, Grafana, ELK-Stack), Infrastructure as Code (z.B. Terraform, Pulumi) (DevOps)
• 2 Jahre Erfahrung Systeme horizontal & vertikal zu skalieren: Auto Balancing, CDNs und Caching (z.B. Redis), Performanceanalysen (Skalierbarkeit)
• 2 Jahre Erfahrung in der Nutzung von Serving-Frameworks (zB vLLM, Triton), Autoscaling, Load-Balancing, Monitoring, Versionierung, GPU-Orchestrierung und automatisiertem Deployment (z.B. Kubeflow, MLFlow) von KI-Modellen (MLOps)
• 2 Jahre Erfahrung mit der Verwendung von KI-Modellen über APIs (lokal&ex-tern), GPU-Optimierung, Quantisierung, Finetuning
• Erfahrung mit Prompt/Context-Engineering (z.B. langchain, autogen, langgraph), RAG-Systemen, Vektor-datenbanken (z.B. FAISS, Pinecone)
• Erfahrung mit Evaluation & Monitoring von KI-Systemen und Governance (EU AI Act, ISO 42001) (GenAI)

Wir bieten:

• Durch abwechslungsreiche und gesellschaftlich relevante Aufgaben gewährleisten wir den reibungslosen IT-Betrieb und die Digitalisierung der Bundeswehr
• Das Ziel eint uns. Dabei sind für uns ein wertschätzender Umgang miteinander sowie ein großer Teamgeist elementar
• Die Vergütung liegt zwischen 71.000 € und 104.040 €. Die tatsächliche Höhe wird basierend auf deinem Verantwortungsbereich sowie Erfahrungen und Kompetenzen festgelegt
• Wir bieten 30 Tage Jahresurlaub, 1 Brauchtumstag plus Optionen auf individuelle Anpassungen
• Über unsere Benefit-App erhält man ein monatliches Guthaben und kann sich zusätzlich Steuervergünstigungen auf Tickets für den ÖPNV sichern
• Wir ermöglichen Flexibilität, um Beruf und Privatleben in Einklang zu bringen, etwa durch mobiles Arbeiten oder Vertrauensarbeitszeit
• Wir unterstützen die berufliche und persönliche Weiterbildung durch individuelle Maßnahmen sowie einen kostenfreien Zugriff auf LinkedIn Learning
• Unser Jobradangebot ermöglicht das Leasing von bis zu 2 Fahrrädern

Wir gehören zu den Top-Adressen in der IT-Welt und fokussieren uns auf die Optimierung der Kerngeschäfts­prozesse unserer Kunden. Durch den smarten Einsatz maßgeschneiderter IT-Lösungen unterstützen wir unsere Kunden dabei, das Beste aus ihrem Business und aktuellen Technologien herauszuholen. Unseren Erfolg aber erreichen wir nur durch eins: die Menschen bei adesso! Sie bringen Ideen, fachliches Know how und Technologien zusammen. Gemeinsam programmieren wir (deine) Zukunft bei adesso.

DEINE ROLLE

• Arbeite auf Basis des Cloud Adoption Frameworks: In deiner Rolle als Cloud Architect arbeitest du auf Basis des Cloud Adoption Frameworks von mindestens einem der drei Hyperscaler (Microsoft Azure / Amazon Web Services / Google Cloud) und berätst unsere Kunden und unterstützt bei der Projektanbahnung.
• Konzipiere Cloud-Infrastrukturen: Gemeinsam mit unseren Kunden konzipierst du die technische Architektur der Cloud Infrastruktur und implementierst diese gemäß der Konzepte nach dem Cloud Adoption Framework.
• Integriere und unterstütze: Neben der Integration von on-premises Systemen in die Cloud unterstützt du auch bei der Migration bestehender Infrastrukturen.
• Designe und automatisiere: Das Designen und die Implementierung von CI/CD Prozessen gehört genauso zu deinen Aufgaben wie das Automatisieren von Infrastruktur mittels Infrastructure as Code (z.B. Terraform).
• Unterstütze bei Presales Aktivitäten: Du unterstützt bei Presales Aufgaben aus fachlicher Sicht durch Konzeption der technischen Architektur und Aufwandsschätzung.
• Coache und bringe deine Ideen ein: Du coachst das Cloud Team in deinem Projekt hinsichtlich der verwendeten Technologien und Best Practices. Zusätzlich bringst du dich mit deinen Ideen aktiv in unsere Cloud Community ein und erarbeitest Standards für zukünftige Projekte.

DEIN PROFIL

• Fundiertes Wissen: Ein abgeschlossenes Studium oder eine Ausbildung mit IT-Bezug sowie mehrjährige Berufserfahrung im Bereich Public- & Hybrid-Cloud bildet die Grundlage deines Profils.
• Cloud-Verständnis: Du besitzt ein tiefes Verständnis von Cloud Architekturen und Strategien und konntest bereits Projekterfahrungen als Cloud Architect sammeln.
• Kenntnisse: Du kennst dich bestens in der Konzeption und Umsetzung von Cloud Infrastrukturlösungen (insbesondere IaaS & PaaS) aus und setzt deine Projekte möglichst im Sinne des Cloud Adoption Frameworks um.
• Erfahrung: Du hast sowohl Erfahrungen in der Umsetzung von Landing Zone Konzepten als auch bei der Erarbeitung von Sicherheits-, Governance- und Identitykonzepten.
• Soft Skills: Du bringst analytische und konzeptionelle Fähigkeiten mit und bist in der Lage komplexe Sachverhalte klar und verständlich zu präsentieren. Zudem bist du kundenorientiert, kommunikationsstark und ein Teamplayer. Dein professionelles Auftreten rundet dein Profil ab.
• KI Kompetenz: Du verfügst über vertiefte KI-Expertise, gestaltest deren verantwortungsvollen Einsatz in deinem Verantwortungsbereich aktiv mit und fungierst als Enabler für Kunden sowie intern bei adesso.
• Sprachkenntnisse: Deine sehr guten Deutsch- und guten Englischkenntnisse ermöglichen dir eine sichere Kommunikation.

Unser Versprechen: Du wirst dich bei uns wohlfühlen! Kollegial, familiär und auf Augenhöhe – wir leben Austausch, Teamgeist und einen respektvollen Umgang miteinander. Diversität und verschiedene Blickwinkel werden bei uns genauso geschätzt wie du als Mensch. Das und viel mehr steht für unser ganz besonderes Wir-Gefühl. Für das es sogar ein Wort gibt: adessi.

Unsere Kultur und das Zusammenarbeiten sind geprägt von gegenseitiger Wertschätzung, Anerkennung und Unterstützung. Das verbindet uns hierarchieübergreifend – auch im Home-Office. So belegen wir zum wiederholten Mal den 1. Platz beim Wettbewerb „Deutschlands Beste Arbeitgeber in der ITK“!. Unser umfangreiches Trainingsangebot und ein transparentes Laufbahnstufenmodell für alle sorgen dafür, dass deine Entwicklung bei uns nicht stillsteht. Denn gemeinsam zu wachsen und Chancengeber zu sein, das ist programmiert in unserer DNA.

Your Role
As an Engineering Manager in our Tooling & Security department, you are directly responsible for maintaining and improving our internal tooling, cloud governance and security. You will lead an international, world-class team of engineers, and will help the rest of FINN work efficiently and securely in their day to day jobs.

Your Mission

• Hire and lead an incredible team: Be the technical role model and go the extra mile to build, develop, and coach the team members on a daily basis.
• Best software for FINN: Actively contribute to and lead the further development of our internal tooling for cloud governance, security detection and automation, IT management, and much more.
• Strive for excellence: Strive to deliver the best possible user experience and to follow engineering best practices.
• Build it, run it: Build features with a ‘build it, run it’ mindset and be responsible for testing, deploying, and monitoring your code. We believe in Serverless!

Your Profile

• Graduated with a Bachelor’s degree (or equivalent) in Computer Science or in a similar field.
• Proven track record with 5+ years of software engineering experience in larger projects.
• 2+ years of experience building and leading a team of software engineers in a fast-pace development environment.
• Experience with platform or security engineering practices. Ideally, you have hands-on experience with leading disaster recovery and incident response efforts. (Those are not a daily reality at FINN, but you will be expected to own them if need be.)
• Ability to own and drive company-wide technical projects (e.g., migrations, patching, etc.) from the position of a coordinator.
• Solid knowledge of TS, Python, or Go, with ability to code and review code without AI if need be.
• Deep knowledge of AWS or GCP, and are willing to learn the other quickly.
• Fluent in English with excellent communication skills.

Why FINN?

• Remote Work: You have the flexibility to work either in our Munich office or remotely ±3 hours of the Munich time zone (CET/ CEST) within the EU.
• Shared Success (VSOP Equity Program): We win together. Through our Virtual Stock Option Program, you benefit directly from the long-term growth and success of FINN.
• Fuel your Growth (3.000€ Development Budget): Standing still is not an option. With your annual development budget for further training and seminars, you decide how you want to grow personally and professionally.
• Family First (Childcare Subsidy & Flexibility): We support you and your family. Benefit from a monthly childcare subsidy, exclusive access to daycare spots in Munich, and maximum flexibility to balance work and family life stress-free.
• Company Pension Scheme (bAV): We think about your future. FINN subsidizes your company pension plan with a strong employer contribution of 66%.
• Experience our Product (25% Car Subscription Discount): Become a FINN driver yourself! You will receive a generous employee discount or can alternatively take advantage of our attractive bike leasing scheme.
• Health & Mindset (Sports & Wellbeing): Your energy is our drive. Benefit from a subsidized EGYM Wellpass membership for fitness and sports, as well as professional mental health support.
• Munich Office Life: Barista-style coffee, matcha, and a luscious fruit basket await you at our modern headquarters in Munich. On top of that, there is a daily lunch subsidy for those in the office.
• Team Spirit & Corporate Events: We are more than just colleagues. Whether it's summer events by the lake or simply a relaxed after-work drink, we celebrate our milestones together at regular team events.

€105,000 - €116,000 a year

This is the salary range for this position. Additionally, you will benefit from virtual company shares (VSOP - Virtual Stock Option Plan).

Your individual placement within this range will be determined during the application process and is based on your experience, qualifications, and specific expertise. The stated range reflects our current planning at the time of publication; we reserve the right to make future adjustments in line with market developments.

About Us
FINN is Germany’s leading car subscription platform and one of the country's few unicorns in the mobility sector. With over 400 colleagues from more than 40 nations, we are building the future of mobility and making access to your own car more seamless than ever before. What truly makes us proud, however, isn’t just the numbers, but what lies behind them: our strong team drive, the will to challenge the status quo, and the ambition to make a real difference. With us, you have the opportunity to take on direct responsibility in one of the fastest-growing scale-ups in Germany and actively shape our success story. We´re just getting started!

More information: www.finn.com

Equal Opportunities for Everyone
FINN is an equal opportunity employer. We embrace and celebrate diversity and are committed to creating an inclusive environment for all employees. We are open to all groups of people without regard to age, color, national origin, race, religion, gender, sex, sexual orientation, gender identity and/or expression, marital status, or any other legally protected characteristics.

Ready for the future of mobility? Apply now!
Come on board and become part of our Hyper-Growth Story! Your
first point of contact
is Anna - we keep things moving fast and guide you every step of the way. Everything you need to know about our hiring process and company culture is in our
Careers @ FINN booklet
.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.