Backend Customer Success Engineer (Kotlin Ecosystem) -m/w/d

JetBrains

At JetBrains, code is our passion. Ever since we started, back in 2000, we have strived to make the strongest, most effective developer tools on earth. By automating routine checks and corrections, our tools speed up production, freeing developers to grow, discover, and create. We’re now looking for a Customer Success Engineer (CSE) to help engineering teams successfully adopt Kotlin on the backend in real-world production environments. Currently, this role is focused on adoption – helping Java teams introduce Kotlin into existing applications. You’ll work directly with organizations to guide migration, integration, troubleshooting, and scaling, ensuring they move from initial experiments to successful production use. In addition, you’ll proactively communicate with prospective users to help them understand the Kotlin adoption process, as well as design and implement the migration path.  RESPONSIBILITIES * Track and maintain visibility into organizations and their stage of Kotlin adoption (e.g., not started, evaluating, experimenting, production) * Proactively engage with organizations across different phases of their Kotlin adoption journey * Develop and recommend high-level adoption strategies tailored to each organization’s context * Identify and document blockers that hinder progress and propose ways to address them * Establish and manage feedback loops with development teams to ensure continuous alignment and improvement WE WILL BE HAPPY TO HAVE YOU ON OUR TEAM IF YOU HAVE: Technical expertise * Extensive hands-on experience with Kotlin, Java, and the JVM ecosystem * Proven experience migrating Java backend codebases to Kotlin * Experience with the Spring (Boot) ecosystem or similar frameworks (e.g., Quarkus, Micronaut, Ktor) * Solid understanding of build tools and project structuring, including Maven and Gradle Communication and customer engagement * Experience in customer-facing technical roles such as Solutions Engineering, Developer Advocacy, or Technical Consulting * Strong English communication skills, both written and spoken * Ability to lead workshops, demos, talks, meetups, and other public-facing activities * Comfort with outbound engagement, including identifying target companies, articulating value propositions, and building relationships with engineering teams * Ability to effectively communicate with engineers, tech leads, and business stakeholders System design and architecture * Ability to design and guide Kotlin adoption strategies for backend applications * Experience designing backend systems using common architectural patterns (e.g., monolith, modulith, microservices) Why join JetBrains?  * Strong base salary. We offer competitive pay that reflects your skills and experience. * Flexible work location. Enjoy the freedom to work from home or from the office. * Remote work. Spend up to 30 days per year working remotely from abroad. * Extra time off. More days to relax, recharge, and do the things you love. * Medical insurance allowance. Enjoy peace of mind for you and your family * Learning and development opportunities. Access to conferences, courses, and language classes. * Relocation support. We help make your move as smooth and stress-free as possible.  * Language classes. Pick up the local language or sharpen your English skills. * Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays. * Mental health support. To help you feel your best, we provide easy access to professional mental health services. * Sports benefit. Enjoy an on-site gym or sports club stipend. * Internal events. Join company-wide celebrations and team gatherings. *Some benefits may vary depending on location. #LI-HYBRID #LI-REMOTE #LI-JP1 We are an equal opportunity employer We know great ideas can come from anyone, anywhere. That’s why we do our best to create an open and inclusive workplace – one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation. We process the data provided in your job application in accordance with the Recruitment Privacy Policy.

JetBrains

At JetBrains, code is our passion. Ever since we started, back in 2000, we have strived to make the strongest, most effective developer tools on earth. By automating routine checks and corrections, our tools speed up production, freeing developers to grow, discover, and create. We’re looking for a Customer Success Engineer (CSE) to help engineering teams successfully adopt Kotlin Multiplatform (KMP) in real-world production environments. ROLE DESCRIPTION: This role focuses on supporting organizations throughout their Kotlin Multiplatform (KMP) adoption journey, from initial evaluation to successful production rollout, while also contributing to product improvements and the roadmap, with focus on KMP adoption, evaluation, feedback and advocacy.   * Engage with organizations at various stages of KMP adoption within existing projects. * Support teams through migration, integration, and scaling of shared codebases. * Help teams overcome technical blockers and successfully move from experimentation to production use. * Proactively engage with prospective users who may benefit from KMP. * Understand customer use cases, technical constraints, and adoption challenges. * Provide practical guidance on feasibility, architecture decisions, and adoption strategies. * Gather structured feedback, insights, and pain points from customers. * Collaborate with product and engineering teams to influence the KMP roadmap and tooling improvements. EXAMPLE OF THE QUESTIONS YOU'LL HELP ORGANIZATIONS ANSWER: * What’s the safest way to migrate a large Android app to shared logic? * How much should we actually share? * Our iOS team struggles with Kotlin APIs and pushes back. How do we address this? * How do we organize the codebase for better cross-team collaboration? * We added KMP, but builds became painfully slow. How do we fix that? WHAT SUCCESS WILL LOOK LIKE: * Organizations successfully adopt and ship Kotlin Multiplatform in production. * Shared code usage expands over time across teams. * Adoption continues beyond the initial evaluation phase. * Tangible improvements are made to the KMP product and tooling, driven by user feedback. WE WILL BE HAPPY TO HAVE YOU ON OUR TEAM IF YOU HAVE: * Strong experience with Kotlin (Android or backend). * A solid understanding of mobile architectures across Android and iOS. * Excellent communication and stakeholder management skills, with the ability to engage, influence, and build trust with senior engineers, tech leads, and business stakeholders. * The ability to clearly explain complex technical concepts to diverse audiences, adapting depth and messaging as needed. * Experience leading customer conversations, facilitating discussions, and aligning cross-functional teams. * A proactive and empathetic approach to understanding customer needs, challenges, and goals. * The willingness to travel up to 25% of the time. NICE TO HAVE: * Hands-on experience with Kotlin Multiplatform. * Experience migrating or modernizing legacy and large-scale codebases. * A  background in customer success, solutions architecture, or similar customer-facing roles. WHY JOIN JETBRAINS?  * Strong base salary. We offer competitive pay that reflects your skills and experience. * Flexible work location. Enjoy the freedom to work from home or from the office. * Remote work. Spend up to 30 days per year working remotely from abroad. * Extra time off. More days to relax, recharge, and do the things you love. * Medical insurance allowance. Enjoy peace of mind for you and your family * Learning and development opportunities. Access to conferences, courses, and language classes. * Relocation support. We help make your move as smooth and stress-free as possible. * Language classes. Pick up the local language or sharpen your English skills. * Fuel your day. Enjoy a hot meal or receive a lunch allowance on workdays. * Mental health support. To help you feel your best, we provide easy access to professional mental health services. * Sports benefit. Enjoy an on-site gym or sports club stipend. * Internal events. Join company-wide celebrations and team gatherings. *Some benefits may vary depending on location. #LI-HYBRID #LI-REMOTE  #LI-JP1 We are an equal opportunity employer We know great ideas can come from anyone, anywhere. That’s why we do our best to create an open and inclusive workplace – one that welcomes everyone regardless of their background, identity, religion, age, accessibility needs, or orientation. We process the data provided in your job application in accordance with the Recruitment Privacy Policy.

Toast

Location(s): US (remote), Boston (hybrid), or New York (hybrid)   Bready* to make a change? Toast is revolutionizing the way the restaurant industry does business by pairing technology with an extraordinary commitment to customer success. We help restaurants streamline operations, increase revenue, and deliver amazing guest experiences through our platform that combines restaurant point of sale, guest-facing technology, and award-winning customer support. Join us as we empower the restaurant community to delight guests, do what they love, and thrive. Who We Are The Digital Storefront team is responsible for advancing and supporting Toast’s consumer facing products such as Online Ordering, Ecommerce, branded Websites, and Branded Mobile Apps. This group is highly product oriented, with a laser-focus on creating top tier consumer experiences for restaurants and their guests. Our product-line is used by millions of restaurant goers each day, so be prepared to innovate on products at a huge scale while ensuring stability and scalability. About this roll* (Responsibilities) In this role, you'll get to work on a wide variety of projects, using your technical chops to influence not just the code, but also product and business strategies. This is a golden opportunity for a hands-on, entrepreneurial engineer who thrives in a modern tech stack environment and loves solving real-world problems through technology. You’ll run experiments, iterate quickly, and have a strong voice in shaping the future of ecommerce here at Toast.  Here’s what you’ll be doing: * Design, scope, and implement cutting-edge solutions using a mix of technologies. * Enhance the platform to boost performance, usability, and scalability. * Collaborate closely with Design and Product stakeholders to ensure we are building the right solutions to the right problems. * Identify high-impact opportunities with your team and turn them into reality. * Be an awesome teammate who’s all in on collaboration and collective success. * Work across teams to ensure that every part of our product ecosystem works seamlessly together to deliver the best possible experience for our customers. Do you have the right ingredients*? (Requirements) * 5+ years of experience developing fullstack web applications as a professional software engineer * Familiar with frontend frameworks like React or Angular, and CSS frameworks like Tailwind or Bootstrap * Familiar with backend technologies like Java/Kotlin and NodeJS * Experience building on AWS services with tools like Docker, and Git * Comfortable turning high-fidelity UX designs from Figma into reality * Passionate about writing testable code, with experience in API design and unit/integration testing * Thrive in a collaborative, team-based environment where you ship features together * Passionate about making users happy and seeing people use your product in the wild * Embrace the agile mindset.  Ship quickly, iterate, and refine AI at Toast At Toast, one of our company values is that we're hungry to build and learn. We believe learning new AI tools empowers us to build for our customers faster, more independently, and with higher quality. We provide these tools across all disciplines, from Engineering and Product to Sales and Support, and are inspired by how our Toasters are already driving real value with them. The people who thrive here are those who embrace changes that let us build more for our customers; it’s a core part of our culture. Our Total Rewards Philosophy  We strive to provide competitive compensation and benefits programs that help to attract, retain, and motivate the best and brightest people in our industry. Our total rewards package goes beyond great earnings potential and provides the means to a healthy lifestyle with the flexibility to meet Toasters’ changing needs. Learn more about our benefits at https://careers.toasttab.com/toast-benefits. The base salary range for this role is listed below. The starting salary will be determined based on skills, experience, and geographic location. In addition to base salary, our total rewards components include cash compensation (overtime, bonus/commissions if eligible), equity, and benefits. You can learn more about how we align pay with local labor markets in our Geographic Pay Zone Philosophy. Zone A $159,000—$254,000 USD Zone B $138,000—$221,000 USD Zone C $125,000—$200,000 USD How Toast Uses AI in its Hiring Process Throughout the hiring process, our goal is to get to know you. We use AI tools to support our recruiters and interviewers with tasks like note-taking, summarization, and documentation of interviews to ensure they can be fully focused on your conversation. All hiring decisions are made by people. To learn more: https://careers.toasttab.com/ai-in-hiring Our Approach to Hybrid Working We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the hospitality community, regardless of location. Please visit the Locations page on our career site to learn more about our in-office expectations by region: https://careers.toasttab.com/locations-toast Diversity, Equity, and Inclusion is Baked into our Recipe for Success At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry is one of the most diverse, and we embrace that diversity with authenticity, inclusivity, respect, and humility. By embedding these principles into our culture and design, we create equitable opportunities for all and raise the bar in delivering exceptional experiences. We Thrive Together We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the restaurant community. To learn more about how we work globally and regionally, check out: https://careers.toasttab.com/locations-toast. Apply today! Toast is committed to creating an accessible and inclusive hiring process. As part of this commitment, we strive to provide reasonable accommodations for persons with disabilities to enable them to access the hiring process. If you need an accommodation to access the job application or interview process, please contact candidateaccommodations@toasttab.com. ------ For roles in the United States, it is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.