Senior Software Engineer (Kotlin) - F/H

NavVis

OUR VISION When people use our technology to "bridge the gap" between the physical and digital worlds, they don’t just capture reality - they create a new one. In this new reality, they are smarter, more productive, more streamlined, and more creative - because they have the digital foundation to build the world they want to live in. That’s what NavVis offers in all our products and services: the tools to not just map the world as it is, but to pave the way to a better future. To forge something new. Physical or digital, there is only one reality. And it’s the reality NavVis empowers people to build better.    THE OPPORTUNITY In this role, you will join the NavVis Mobile Team and use your deep expertise in Android development to shape the future of NavVis IVION Go — our mobile app that lets users dive into rich digital data around them, wherever they go. You will leverage the powerful digital twins created with our mobile mapping devices NavVis VLX/MLX as well as our cutting-edge visual positioning technology to create spatially aware user experiences for our manufacturing clients around the world.  If you're passionate about clean code and elegant design, keeping up to date with current Android ecosystem, and love building with modern toolchains — you might be exactly who we're looking for!    HOW YOU WILL MAKE AN IMPACT * You will progressively take co-ownership of our entire Android codebase, toolchain, and development process.  * You will collaborate closely with design, product management, and of course your fellow engineers across Android/iOS inside the Mobile Team and on demand with other engineering teams in the IVION department.  * You will drive architectural decisions for the Android codebase and set the bar for code quality through knowledge sharing and code reviews.    WHAT WILL HELP YOU SUCCEED IN THE ROLE * 8+ years of Android development experience, with strong architectural decision-making skills across Kotlin Coroutines/Flow, Jetpack Compose, Jetpack libraries (Room, Lifecycle, ViewModel), Retrofit, and Koin.  * Solid computer science fundamentals — data structures, algorithms, and design patterns applied in real-world production contexts.  * Quality-driven development mindset, including TDD/BDD practices, mobile testing (JUnit, Espresso), and CI/CD pipelines (GitHub Actions, GitLab, or Jenkins).  * Full SDLC ownership — from requirements and architecture through code reviews, testing, and deployment.  * Agentic AI coding proficiency — goes beyond AI-assisted writing to shape team-wide workflows, curate context, and optimize for token efficiency.  * Experience with ARCore, game engines, or 3D rendering frameworks is a strong differentiator.    HOW WE WILL KNOW WE ARE A PERFECT MATCH Your recruiting partner for this role is Sylvie (she/her). You can expect to go through a screening call, and up to 5 rounds of interviews, where we would love to discover your passion and interests, introduce you to who we are and what drives us, and finally understand how we can potentially add value to each other's growth.   HOW WE WILL KEEP YOU SMILING * It's important to take a break from work! We offer 30 days of paid time off per year * Affordable access to a vast network of fitness and wellness facilities through EGYM Wellpass subsidy * Deutschlandticket subsidy to support sustainable travel using public transport * We offer flexible working hours and a hybrid work setup, enabling you to plan your work around your life, and not your life around work! * We offer full visa and relocation support for international candidates * An attractive bike leasing model through JobRad, in line with our commitment towards sustainable mobility * A competitive compensation package that values the skills and experience you bring * Up to 4000 EUR employee referral bonus  * Financial support for local language classes to help you in your journey of integrating into the culture!   ABOUT US   NavVis is a technologically-focused, global leader in reality capture and digital factory solutions. Prominent manufacturers and laser scanning professionals around the world trust our ground-breaking technology, designed to capture and share the built environment as photorealistic digital twins. By bridging the physical and digital worlds, we’re helping organizations make smarter decisions and build more efficient, connected operations.   With over 300 people from around 60 nationalities and offices around the globe, we’re proud to be a truly international and diverse place to work. As a scaling company, we bring together the agility, innovation, and entrepreneurial mindset of a startup with the professionalism and reliability of an established enterprise — offering our team the best of both worlds.   You’ll be part of an open culture that values trust, collaboration, and transparency. We are proud of our environment where diverse talent can thrive and where feedback fosters individual growth and development. Do you share our passion for disruptive technology and want to be part of our dynamic journey? At NavVis, you’ll own your projects, bring innovative ideas to life, and have real opportunities to grow your career and be recognized for your impact.   We derive our strength from our diversity. NavVis’ unwavering commitment to fostering an inclusive and diverse workplace has laid the foundation for our incredible growth. We thrive on the collective strength of our people who come from diverse backgrounds. We respect and value every experience associated with race, gender identity, sexual orientation, nationality, religion and disability. We do not discriminate on the basis of any of these, or other identities, and strongly encourage everyone to apply. Together with you, we build NavVis! If you need assistance at any stage of the recruiting process due to a disability, please reach out to your recruiting partner(s) for this position.

Doctolib

WHAT YOU'LL DO  We are looking for a Senior Software Engineer to join the Patient Online Booking feature team in the Patient Health Platform domain. Our team is responsible for enhancing the booking experience for our 90 million patients, with over 300 million appointments expected to be booked this year. Empower your team to build better products, playing a pivotal role in the improvement of one of France’s most downloaded apps! Your responsibilities include but are not limited to: * Collaborate with product managers, designers, and other engineers to define and implement features to improve healthcare access for patients * Take a leading role within the team and contribute to establishing a technical vision that ensures the performance, security, and usability of the application, taking into account the future needs and the high scalability needs. * Bring your expertise and experiences to help us continuously improve the way we design, implement, test, and monitor high-quality features * Improving the performance of key features implemented in Java and Ruby on Rails, sometimes completely challenging the status quo * Taking leadership on delivering roadmap items (together with the team) * Contributing to establishing a technical vision and co-drive the creation of the roadmap for next quarters WHO YOU ARE If you don’t meet all the requirements below but believe this opportunity matches your expectations and experience, we still encourage you to apply! * You are proactive, curious, collaborative and eager to learn * You are primarily a backend engineer with expert knowledge of Java and a good knowledge of Ruby on Rails (or similar frameworks). You have a solid understanding of web technologies and software development life cycle * You have a “user first” mindset and want to build a product focused on bringing value to its users, through secure, well-tested and pragmatic code * You embrace and champion AI-augmented engineering, leveraging AI coding tools (GitHub Copilot, Claude Code...) to boost your own productivity and help the team adopt these practices effectively * You are fluent in English WHAT WE OFFER * Free comprehensive health insurance for you and your children * 25 days of paid vacation per year, plus up to 14 days of RTT * Free mental health and coaching services through our partner Moka.care * Work from abroad for up to 10 days per year thanks to our flexibility days policy * Lunch vouchers (Swile card) worth €8.50 per working day, with €4.50 covered by Doctolib * A subsidy from the work council to refund part of the membership to a sport club or a creative class * 50% reimbursement of your public transport subscription * Parent Care Program: receive one additional month of leave on top of the legal parental leave * For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support * Relocation support in case of international mobility * Access to the best AI tools for coding, development and dedicated training THE INTERVIEW PROCESS  * Recruiter Interview * Live Coding Interview * System Design Interview * Behavioral Interview * At least one reference check JOB DETAILS * Permanent position * Full Time * Based in Levallois-Perret * Hybrid position 3 days/week in the office * Start date: As soon as possible If you would like to find out more about tech life at Doctolib, feel free to read our latest Medium blog articles!  At Doctolib, we are committed to improving access to healthcare for everyone. This translates into our recruitment process. We evaluate candidates based solely on qualifications and motivation, without any form of discrimination. The more diverse ideas are heard, the more our product will truly improve healthcare for all. You are welcome to apply to Doctolib, regardless of your gender, religion, age, sexual orientation, ethnicity, disability. To ensure equal opportunities, we invite you to exclude personal information (e.g. pictures, age) from your applications. If you require any accommodation, please let us know for support during the hiring process.  Join us in building the healthcare we all dream of! All information provided is processed by Doctolib for application management. For data processing details, click here. Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.

Doctolib

What we do Join a team of passionate and hardworking entrepreneurs to transform healthcare! Working in the tech team at Doctolib involves building innovative products and features to improve the daily lives of care teams and patients. We work in feature teams in an agile environment, while collaborating with product, design, and business teams.   What you'll do We are looking for a Senior Software Engineer FullStack to join the FIRE (FHIR & Interoperability Requirements EHR) team in the Clinical domain. As a Senior Software Engineer, your mission will be to ensure that Doctolib DE is well connected to the German digital health ecosystem and compliant with FHIR standards. You will be responsible for the interoperability of the German EHR (Electronic Health Record): connection to the Telematik-Infrastruktur (TI), electronic prescriptions (eRezept), qualified electronic signature (QES), connected medical devices (GDT), and integration of laboratory results.   Your responsibilities include but are not limited to: * Build and maintain the integration with German governmental health services, ensuring other Doctolib teams can seamlessly interact with the German health system through your platform * Drive the integration of the national EHR (Electronic Health Record) into Doctolib, with a multi-country rollout approach, navigating each country's standards and technical constraints * Design, ship, and operate production-grade fullstack solutions that connect the Doctolib platform to complex healthcare infrastructure * Partner with other engineering teams to shape the architecture of Doctolib's interoperability platform * Ensure privacy, security, and compliance by design in one of healthcare's most regulated technical environments * Own performance, observability, and reliability: monitoring dashboards, SLO/SLI, and system health * Contribute to cross-functional initiatives that shape Doctolib's future interoperability strategy across Europe   About our tech environment * Our solutions are built on a single, fully cloud-native platform that supports web and mobile app interfaces, multiple languages, and is adapted to country and healthcare specialty requirements. * The FIRE team works on a FullStack scope: React / TypeScript on the frontend and Kotlin on the backend. * Our broader stack is composed of Rails, TypeScript, Java, Python, Kotlin, Swift, and React Native. * We leverage AI ethically across our products to empower patients and health professionals. Discover our AI vision here!   Who you are Are you convinced that you have exactly what it takes for the position? Then we encourage you to apply. Even if you don't meet every requirement, you might be exactly the right future Doctoliber for this or other positions! Before you read on, if you don't have the exact profile described below, but you feel this job description matches your skill set, we still encourage you to apply. * You have 6+ years of experience as a software engineer, with strong fullstack expertise, particularly in Kotlin and React/TypeScript * You have a track record of building robust, end-to-end solutions that balance technical excellence with intuitive user experiences * You are able to design systems (system design) and make sound architectural decisions in complex environments * You understand and promote best practices related to the software development life cycle: automated testing, CI/CD, and DevOps practices (you build it, you run it) * You are curious, autonomous, and have a taste for exploring new systems : you are comfortable solving problems without complete documentation * You are at ease in complex technical environments with many external dependencies and evolving standards * You are eager to share your knowledge and help the team grow through pair programming and mentoring * You are comfortable speaking and writing in English in your day-to-day with the team, German is a plus Now, it would be fantastic if you: * Have experience with healthcare interoperability standards, particularly FHIR, HL7, or similar * Have experience integrating with governmental or regulated health systems (e.g. Telematik-Infrastruktur, eRezept, GDT) * Are familiar with the German digital health ecosystem   What we offer * A Deutschlandticket (Germany-wide public transport pass) fully paid for by Doctolib * 28 vacation days + 1 additional day for each full calendar year of employment (up to a maximum of 30 days) * Work from abroad for up to 10 days per year thanks to our flexibility days policy * Company health insurance with great supplementary benefits through our partner Allianz * Company pension scheme (bAV) through Allianz with an employer subsidy of 40% (15% within the probationary period) * Enrollment in Doctolib's long-term employee value sharing plan called DoctoGrowth * The Doctolib Parent Care program, which includes one month additional parental leave and much more * Free mental health and coaching services through our partner Moka.care * Subsidized sports membership through our partner Urban Sports Club * A flexible workplace policy offering both hybrid and office-based mode * Alongside healthy snacks and our regular breakfast buffet, we provide a subsidized meal benefit * For caregivers and workers with disabilities, a package including an adaptation of the remote policy, extra days off for medical reasons, and psychological support   The interview process * Recruiter Interview * Feature Building Interview * System Design Interview * Behavioral Interview * Reference check * Offer! Job details * Full-time * Location: Berlin * Working mode: Hybrid * Start date: as soon as possible If you would like to find out more about tech life at Doctolib, feel free to read our latest Medium blog articles! At Doctolib, we are committed to improving access to healthcare for everyone. This translates into our recruitment process. We evaluate candidates based solely on qualifications and motivation, without any form of discrimination. The more diverse ideas are heard, the more our product will truly improve healthcare for all. You are welcome to apply to Doctolib, regardless of your gender, religion, age, sexual orientation, ethnicity, disability. To ensure equal opportunities, we invite you to exclude personal information (e.g. pictures, age) from your applications. If you require any accommodation, please let us know for support during the hiring process.  Join us in building the healthcare we all dream of! All information provided is processed by Doctolib for application management. For data processing details, click here. Please contact hr.dataprivacy(at)doctolib.com for inquiries or to exercise your rights.