Staff Software Developer (Kotlin Libraries)

JetBrains s.r.o. creates tools that help developers automate repetitive tasks so they can focus on writing quality code. Since 2000, the company has aimed to make software development more productive and enjoyable for engineers worldwide. Role overview The Customer Success Engineer - Kotlin Multiplatform (KMP) supports engineering teams as they adopt KMP in real-world projects. This role guides organizations from their first evaluation through to successful deployment. Along the way, it gathers feedback and collaborates closely with JetBrains product teams to help shape the future of KMP. What you will do Work directly with organizations at various stages of KMP adoption, from initial exploration to production rollout. Assist teams in migrating, integrating, and scaling shared codebases using Kotlin Multiplatform. Support teams moving from experimentation to production and help address technical challenges as they arise. Reach out to potential users who could benefit from adopting KMP. Identify each customer’s technical needs, use cases, and any barriers to adoption. Advise on architecture, feasibility, and strategies for implementing KMP. Collect structured feedback and insights from clients. Collaborate with JetBrains product and engineering teams to influence the KMP roadmap and improve available tooling. Common questions you'll help solve What is the safest way to migrate a large Android app to shared logic? How much code sharing is practical or advisable? How can teams address resistance from iOS developers working with Kotlin APIs? What’s the best way to organize a codebase for collaboration across teams? How can teams resolve slower build times after introducing KMP? How success is measured Organizations deliver Kotlin Multiplatform in production environments. Teams increase their use of shared code over time. KMP adoption continues beyond initial trials. User feedback results in tangible improvements to KMP and its tooling. Requirements Experience working with Kotlin, either for Android or backend development. Understanding of mobile architectures on both Android and iOS, especially with Kotlin. Strong communication skills and a knack for problem solving. Background with cloud technologies and CI/CD pipelines. Ability to collaborate effectively within a team-driven environment. Location This position is available in Amsterdam (Netherlands), Berlin or Munich (Germany), or remote within Germany.

JetBrains has developed tools for software teams since 2000. By automating routine checks and corrections, JetBrains products help developers focus on building and shipping software. The goal: make development more productive and creative. Role overview This Backend Customer Success Engineer role centers on supporting engineering teams as they adopt Kotlin for backend development. The position focuses on helping organizations successfully bring Kotlin into production environments. What you will do Guide organizations through the process of moving from Java to Kotlin, assisting with migration, integration, and scaling. Troubleshoot technical challenges that arise during the transition and support teams as they progress from initial experimentation to stable production use. Work with potential users to clarify how Kotlin adoption works and help design migration plans that fit their specific needs. Locations Amsterdam, Netherlands Berlin, Germany Munich, Germany Prague, Czech Republic Remote, Germany

At JetBrains, we are driven by a passion for code. Since our inception in 2000, we've dedicated ourselves to crafting the most powerful and efficient developer tools available. As AI-driven coding agents become integral to Kotlin development, we are committed to ensuring these tools excel in their purpose. The Kotlin AI Value Stream team plays a pivotal role in how AI agents comprehend, generate, and enhance Kotlin code across diverse platforms, including Android, Kotlin Multiplatform, server-side, web, and desktop applications. We develop evaluation infrastructures, error analysis tools, and post-training pipelines that assess and enhance agent performance on actual Kotlin developer tasks. In your role as a Research Engineer with our team, you will take charge of the complete feedback loop: Analyze failures in Kotlin code generated by agents, devise evaluations to identify those failures, research and implement strategies for improvement, and measure the outcomes. Your contributions will significantly influence how millions of developers interact with Kotlin through AI coding agents.

About UsAt Vandebron, we are revolutionizing the energy sector by prioritizing sustainability and creating a transparent platform that connects consumers directly with local green energy producers. Since our inception in 2014, we have been committed to fostering a sustainable energy future.As we enter Chapter 2 of our journey, our mission is to guarantee 100% availability of green energy - 100% of the time. We are implementing innovative solutions such as flexible wind and solar energy utilization, Smart EV Charging, and advanced energy storage systems, ensuring a proactive approach to shaping a green future.Join us in creating smart energy solutions - that’s Vandebron.The RoleWe are rethinking our technology infrastructure, and we want you to be part of this exciting transition! As a Senior Backend Engineer, you will play an essential role as we move from a Scala/ZIO foundation to a new generation of services built with Kotlin and Spring Boot. You will be instrumental in developing our future-proof platform, creating scalable and high-quality services that drive Vandebron’s mission for 100% green energy.Collaborating within a dynamic, cross-functional team of engineers, designers, and product stakeholders, you will transform complex energy challenges into efficient backend solutions. Our culture promotes knowledge sharing and experiential learning, making it an integral part of our work environment.ResponsibilitiesCollaborate with fellow engineers to design and develop new microservices utilizing Kotlin and Spring Boot.Design and uphold clean, high-performing APIs that cater to our React and React Native frontends.Produce clean, efficient, and well-documented code that meets our product specifications with increasing autonomy.Engage in all phases of the development lifecycle, including writing tests, conducting code reviews, and ensuring the delivery of high-quality software.Contribute ideas and feedback within your team to cultivate a collaborative and productive work environment.

Role Overview JetBrains is looking for a Customer Success Engineer for YouTrack. This role focuses on helping customers get the most out of YouTrack for project management. The position is open to candidates based in Amsterdam, Berlin, Munich, Prague, or remotely within Germany. What You Will Do Work closely with clients to support and improve their use of YouTrack Apply technical knowledge to help customers optimize their project management workflows Communicate with customers in German, offering guidance and troubleshooting when needed What We Look For Fluency in German Technical understanding of YouTrack or similar project management tools Strong communication skills Locations Amsterdam, Netherlands Berlin, Germany Munich, Germany Prague, Czech Republic Remote (within Germany)

Join Amdax as a Customer Success Manager, where your primary responsibility will be to ensure our clients achieve their goals and maximize the value of our products. You will act as a trusted advisor, guiding clients through their journey and addressing any challenges they may face.In this role, you will collaborate closely with cross-functional teams to deliver exceptional service and drive customer satisfaction. Your expertise will be vital in identifying opportunities for growth and improvement.

At Trustpilot, we are embarking on an extraordinary journey as a profitable, high-growth FTSE-250 company with a bold vision: to become the universal symbol of trust. As the world's largest independent consumer review platform, we've achieved remarkable milestones, yet there remains much thrilling work ahead. Join us at the forefront of fostering trust!As the Enterprise Customer Success Manager, you will serve as the primary value driver and strategic partner for Trustpilot’s most complex, high-tier accounts within the Benelux market. Transitioning from tactical management to a trusted advisor role, you will ensure Trustpilot's integration into the long-term business strategies and digital ecosystems of our customers.Your objective is to architect success across your portfolio—from onboarding and adoption to measurable outcomes and advocacy—by converting intricate business challenges into quantifiable product value. You will be pivotal in promoting high-impact adoption and securing long-lasting retention through executive-level partnerships and a profound understanding of the digital landscape.Key Responsibilities:Lead critical post-sale alignment and executive onboarding for high-tier accounts, ensuring a seamless transition from New Business and establishing a strong foundation for adoption, while creating a multi-level relationship map to secure strategic buy-in from the outset.Proactively translate technical usage data into persuasive ROI narratives, showcasing how Trustpilot impacts every stage of the digital marketing funnel—from driving top-of-funnel traffic to enhancing bottom-of-funnel conversion and long-term brand advocacy.Achieve a high Gross Renewal Rate (GRR) by monitoring customer health and addressing potential risks proactively.Maintain the holistic health of your portfolio, designing tailored success plans to mitigate complex churn risks and uncover strategic growth opportunities.Drive customer satisfaction and advocacy, achieving impressive Net Promoter Score (NPS) results across your portfolio.Act as the primary executive contact for high-tier accounts, bridging the gap between customer business needs and Trustpilot’s leadership, diagnosing complex product value or onboarding issues while strategically triaging commercial matters to Account Managers for a seamless partnership.Synthesize high-tier customer needs into structured insights that inform our global product roadmap, ensuring Trustpilot evolves in alignment with the most sophisticated market players.

At OMRT, we are at the forefront of revolutionizing the real estate industry's approach to technology. Our mission transitions from project-based engagements to profound, long-lasting partnerships that fundamentally change how our clients leverage tech solutions. As our inaugural Customer Success Manager (CSM), you will not just fill a position; you will act as an entrepreneurial leader, collaborating closely with our Founders to define this role. Your primary responsibility will be to serve as a critical connector among our commercial, engineering, product, and tech teams, ensuring our clients achieve their business objectives promptly and effectively. If you possess a bold spirit, a touch of rebelliousness, and a desire to set new benchmarks in the industry, we invite you to lead our expansion efforts.Key ResponsibilitiesIdentify and persuade clients to initiate comprehensive implementations with OMRT.Perform in-depth client evaluations and develop detailed implementation strategies.Co-manage operational structures to ensure optimal and efficient project delivery.Cultivate and maintain strong client relationships by enhancing satisfaction levels, ensuring sustained value, and keeping OMRT top-of-mind.Pursue continuous enhancements and explore new avenues, including parametric design initiatives and software integrations.Drive growth by boosting client revenues across various platforms while ensuring long-term client retention.Lead and facilitate multidisciplinary teams within a matrix environment for commercial and operational synergy.

At Commify, we are more than just a company; we are a globally interconnected team of innovators dedicated to our mission. As a leader in the Communication Platform as a Service (CPaaS) sector, we boast 25 years of pioneering experience, facilitating over 5 billion customer interactions annually. Our innovative solutions empower businesses worldwide to engage with their audiences through advanced channels such as SMS, RCS, and intricate mobile journeys.Our culture is our greatest asset. With operations spanning the UK, EMEA, the USA, and Australia, we have cultivated a genuinely diverse and connected environment, consistently earning a culture score of 4 out of 5 in our employee engagement surveys. Join our dynamic team where your unique experiences contribute to a significant global impact every day.We are on the lookout for talented individuals to help us expand our global reach, ensuring that every team member feels a sense of belonging and purpose as we collectively shape the digital future.About The Role:Our Netherlands hub, Spryng, is seeking a Customer Success Intern. This role is ideal for someone eager to gain practical experience in an international company that prioritizes customer satisfaction. We are looking for a motivated individual who is ready to make a meaningful impact in customer support and marketing. You should be comfortable making mistakes, as we believe that’s how real learning occurs! If you are tech-savvy or willing to learn, and are prepared to bring positive energy to our passionate Customer Experience (CEX) team, we would love to have you on board to elevate our Customer Support & Experience to new heights.If you are enthusiastic about personal growth and contributing to maintaining our exceptional customer experience ratings, we would be thrilled to welcome you!

As an Enterprise Customer Success Manager at CyberArk, you will play a pivotal role in ensuring our enterprise customers achieve their desired outcomes while using our cutting-edge security solutions. You will collaborate with cross-functional teams to drive customer satisfaction, retention, and growth, leveraging your expertise in customer success and technology.Your responsibilities will include proactively managing customer relationships, conducting regular check-ins, and identifying opportunities for upselling and cross-selling our solutions. You will analyze customer feedback to inform product development and enhance the overall customer experience.

Wil jij bijdragen aan de revolutie in de afvalwereld?Bij Seenons, een trotse Bcorp, hebben we een heldere missie: een wereld zonder bedrijfsafval. Als een snelgroeiende tech-scaleup zijn we actief in vier landen, met een sterke focus op het verbeteren van de Nederlandse afvalmarkt.Ons innovatieve platform verenigt alle betrokken partijen in de afvalketen voor circulair beheer. We ondersteunen grote organisaties in hun streven om afval te verminderen en waardevolle grondstoffen te behouden, bij te dragen aan een circulaire economie. Voor ons team in Amsterdam zijn we op zoek naar een Customer Success Manager die onze grote klanten helpt bij het verduurzamen van hun afvalbeheer.Wat je kunt verwachten van deze rolJe fungeert als het primaire aanspreekpunt voor onze klanten en begeleidt hen in het optimaliseren en verduurzamen van hun afvalbeheer.Je bent verantwoordelijk voor de onboarding van nieuwe klanten en zorgt voor een zorgvuldige interne afstemming.Regelmatig bezoek je klanten op locatie om hun behoeften te begrijpen en ervoor te zorgen dat verbeteringen, zoals containerherinrichting en duurzame afvaloplossingen, succesvol worden geïmplementeerd.Je helpt klanten om het meeste uit het Seenons-platform te halen en gezamenlijke doelstellingen te bereiken.Met onze dashboards analyseer je de prestaties van klantlocaties en kom je proactief met verbeteringen. Jij identificeert kansen en weet wat er verbeterd kan worden voordat de klant daarom vraagt.Je signaleert mogelijkheden om onze impact bij bestaande klanten te vergroten en breidt onze dienstverlening succesvol uit door middel van upselling.Je bent een sparringpartner voor de klant en biedt deskundig advies over afvalbeheer en verduurzaming.Je bent de ideale kandidaat als jeMinimaal 2 jaar ervaring hebt in een Customer Success of Account Management rol, met ervaring in het beheren van een complexe en diverse klantenportefeuille.De afvalmarkt goed begrijpt, of een sterke ambitie hebt om onze wereld duurzamer te maken.

Role Overview Team Lead, Enterprise Customer Success at studytube guides the Enterprise Customer Success Managers (CSMs) serving our largest clients in the Benelux region. This role combines team leadership with direct client engagement, ensuring both the team's growth and the delivery of value to enterprise accounts. Reporting to the VP of Customer Success, this position balances hands-on coaching, operational oversight, and a personal portfolio of key accounts. The goal: empower the team, maintain high standards, and support client success at scale. What You Will Do Lead and Coach: Guide a team of Enterprise CSMs, providing individual coaching, support during challenges, and acting as the main point of contact for escalations. Portfolio Management: Deliver analytical insights on the Benelux enterprise portfolio at set intervals. Assess churn, contraction, and expansion (both known and at-risk), and help steer Net Revenue Retention (NRR) and Gross Revenue Retention (GRR). Quality Assurance: Oversee Quarterly Business Reviews (QBRs), Strategic Reviews, and senior-level escalations to ensure high-quality outcomes and uphold team standards. Client Engagement: Manage a select group of enterprise accounts directly, keeping close to client needs and challenges to inform your coaching. Cross-Functional Collaboration: Work with Sales and Account Management on cross-sell and upsell opportunities, coordinate with Implementation for smooth client handovers, and share strategic insights with the VP of Customer Success. Location This position is based in Amsterdam, Noord-Holland, Netherlands.

Hello! We appreciate your visit! Are you on the lookout for an exciting new challenge? Or merely exploring your options in the job market? You're in the right spot! We are in search of a Customer Adoption and Success Manager to become an integral part of our Launch team in London. In this role, you will architect and lead a dynamic Adoption function that serves as a crucial link between Product Innovation and Customer Value. You will be tasked with developing a 'Digital by Default, Human by Design' engagement model from scratch, ensuring that customers across all segments fully leverage the Lightspeed platform. Your mission will be to convert 'Feature Usage' into a strategic advantage for Net Revenue Retention (NRR) and Customer Lifetime Value (LTV). You will orchestrate a team that combines scalable tech-touch automation with targeted, high-impact human interactions, accelerating adoption rates and establishing strong defenses against churn.

Transform Employee Feedback into Actionable Insights!At Effectory, we believe that employee listening is the cornerstone of creating a world-class workplace. Our mission is to enhance organizational development by empowering employees to voice their opinions and ensuring their feedback leads to meaningful change.As a Junior Customer Success Manager, you will be an integral part of our team focused on the governmental and higher education sectors. Your role will involve cultivating long-lasting relationships with clients, ensuring they receive maximum value from our products and services. You will guide our customers to become advocates for Effectory, sharing their success stories and experiences.You will collaborate closely with both our clients and internal teams to understand customer needs, drive satisfaction, and ultimately boost retention. Are you ready to take on this exciting challenge and help us shape the future of employee engagement?Your Key Responsibilities:Develop and maintain strong, long-term relationships with customers in your portfolio to drive satisfaction, adoption, and retention.Understand and connect your customers' goals and needs to our products and services.Identify opportunities to leverage successful customer stories for case studies and events.Continuously share insights on customer demands and challenges with relevant internal teams (product, marketing, etc.).

Faciliteer groei en waardecreatie voor onze grootste klantenAls expert in leren geloof je dat onderwijs pas echt impact heeft als het bijdraagt aan de doelstellingen van de organisatie.In de rol van Senior Enterprise Customer Success Manager ben jij verantwoordelijk voor het waarborgen van continue waardecreatie voor onze enterprise-klanten met Studytube. Je fungeert als strategische partner voor directie- en HR/L&D-belanghebbenden, leidt adoptie- en veranderprocessen en verzekert succes gedurende de gehele samenwerking: van onboarding en waardecreatie tot aan verlenging en uitbreiding.Jouw verantwoordelijkhedenJe geeft sturing, creëert momentum en maakt resultaten zichtbaar — zowel bij klanten als intern.Als Senior Enterprise Customer Success Manager ben jij de schakel die impact creëert bij jouw klanten en binnen Studytube. Je bent de expert en adviseur voor jouw klanten: je brengt focus aan in doelstellingen, vertaalt ambities naar concrete plannen en toont de behaalde resultaten aan. Binnen Studytube vertaal je klantfeedback naar productverbeteringen en coach je andere Customer Success Managers. Je werkt nauw samen met diverse teams, zoals het implementatieteam, onze service agents, product owners en de marketing- en salesafdelingen. Concreet omvat dit:Strategisch accountbeheer: bouw en onderhoud complexe relaties (HR/L&D, IT, Finance, MT). Ontwikkel gezamenlijke succesplannen met duidelijke doelstellingen en meetpunten, en bied op gezette momenten inzichten en advies over optimalisatie van het platformgebruik.Adoptie & verandermanagement: Je schakelt moeiteloos tussen strategie en uitvoering — jouw ervaring met Customer Success, projectmanagement of software-implementaties helpt je om klantprojecten succesvol te implementeren.Waardecreatie: vertaal L&D-ambities naar KPI’s en resultaten (adoptie, vaardighedenontwikkeling, efficiëntie, compliance). Onderbouw ROI met data en klantcases.Business reviews: voer kwartaal- en jaarlijkse reviews uit met duidelijke voortgang op doelstellingen, risico’s, kansen en vervolgstappen; stuur proactief bij met experimenten en pilots.Klanten gezondheid beheer: monitor gebruik en gezondheidssignalen, escaleer tijdig, activeer playbooks en betrek de juiste interne specialisten.Commerciële groei: identificeer uitbreidingsmogelijkheden op basis van bewezen waarde (use cases, modules, licenties). Werk nauw samen met het Account Management voor verlengings- en uitbreidingsstrategieën.Klantenstem: vertaal klantinzichten naar product- en procesverbeteringen; prioriteer samen met Product, Implementatie, Technische Ondersteuning en Marketing.Kennisdeling: documenteer en schaal best practices via playbooks, onze klantcommunity en coach andere CSM’s binnen ons team.Succes in deze rol betekentVersnelde time-to-value voor nieuwe klanten/gebruikers.Verhoogde klanttevredenheid en retentie.Continue verbetering van klantrelaties en platformgebruik.

Join the forefront of cloud networking and security!Cato Networks revolutionizes enterprise networking and security by integrating them into a unified global cloud service. Founded by industry visionary Shlomo Kramer, Cato has pioneered a new product category known as SASE, as recognized by Gartner, with an expected market growth to $28.5 billion by 2028. This is your chance to be part of a trailblazing company that is rapidly ascending to global leadership in enterprise network and secure cloud solutions.As a Customer Success Manager for the Benelux region, you will act as a trusted partner to our top-tier clients from the deployment phase through their renewal process. Your role will focus on fostering customer engagement, promoting product adoption, and leveraging your technical expertise to guide our clients towards achieving their objectives.Key Attributes:Curiosity: A genuine interest in understanding our customers' business needs.Creativity: Ability to facilitate innovative solutions that lead to positive outcomes.Empathy: Establishing authentic connections with clients through a caring approach.Core Responsibilities:Oversee the health and satisfaction of assigned accounts, ensuring that customers derive maximum value from their investment in our technology.Build and nurture relationships with key stakeholders both within the customer’s organization and across Cato’s internal teams (Sales, Customer Success, R&D, and Support Engineering).Lead Cato’s post-sales initiatives, including conducting Quarterly Business Reviews (QBRs), product adoption assessments, and managing renewals and upselling opportunities.

Role overview Treatwell seeks a Customer Success Manager based in Amsterdam to support the Dutch-speaking market. This position centers on helping salon partners transition their businesses online using Treatwell’s platform. By guiding partners through onboarding and ongoing support, the role plays a key part in Treatwell’s mission to deliver excellent hair and beauty experiences. The focus is on helping salons take full advantage of Treatwell’s digital tools, boost their online bookings, and encourage customer loyalty. What you will do Onboard new partners: Introduce salons to Treatwell’s software, explain its benefits, and ensure each partner is well prepared to use the platform. Train and support: Offer ongoing training, share updates about new features, and help partners get the most from the system. Enhance salon performance: Proactively work with each location to improve results and streamline operations. Deliver responsive service: Respond promptly to partner questions and concerns by email or phone. Drive B2B revenue: Upsell additional features and services to existing partners. Foster retention: Build strong relationships to keep partners engaged and satisfied with Treatwell. Requirements Fluency in Dutch is required for this market-facing role. Enjoys inspiring, training, and supporting others. Skilled at building business relationships and motivated to help salons succeed in a digital environment.

Seenons, a certified B Corp based in Amsterdam, connects organizations across the waste management industry to promote circular solutions and help reduce waste. The company’s platform focuses on recovering valuable materials and supporting large organizations in their sustainability efforts. This internship in Customer Success Management & Operations is aimed at students seeking more than a routine placement. Interns at Seenons quickly become involved in real projects, learning on the job and contributing to a more sustainable future. The Customer Success team is searching for an enthusiastic, entrepreneurial intern to join their mission. What you will do Assist the Customer Success Management team with daily client-focused activities. Prepare for meetings and analyze customer cases using data and desk research. Help improve internal communication and knowledge sharing related to clients. What to expect Experience the full customer journey: See every stage, from initial contact to ongoing client satisfaction. Collaborative team environment: Work with colleagues who value authenticity and share a commitment to sustainability goals. Guidance and support: Begin with a structured onboarding, receive regular check-ins, and benefit from a dedicated mentor. Hands-on learning: Take initiative, learn by doing, and handle real responsibilities from the start. Meaningful projects: Contribute to assignments that make a visible impact for customers, partners, and the company’s mission. Location Amsterdam, Noord-Holland, Nederland

Effectory stands out as Europe's premier employee feedback solution. Our innovative platform empowers HR and management to gather invaluable employee feedback throughout their journey. This feedback is translated into insightful people analytics that drive strategies aimed at enhancing productivity, engagement, and retention. With 25 years of expertise, our dedicated team of 200 professionals located in Amsterdam and Munich supports over 800 organizations across more than 70 countries. In today's landscape, HR plays a crucial role in shaping business strategy, which is why our feedback solution is meticulously designed to support strategic HR initiatives.Our mission is clear: to enhance the workplace experience by amplifying employee voices and ensuring their feedback leads to meaningful change.Role OverviewAs the Senior Customer Success Manager for Enterprise accounts, you will serve as the primary value driver and strategic partner for Effectory's most intricate and high-value clients. Your role transcends traditional account management, positioning you as a trusted advisor and ensuring that our solutions are deeply integrated into each client's long-term business strategy and digital landscape.Your objective is to architect success for your portfolio, facilitating adoption, measurable outcomes, and client advocacy. You will adeptly bridge complex business challenges with quantifiable product value, driving high-impact adoption and fostering long-term retention through robust partnerships and an in-depth understanding of HR and people analytics.