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Experience Level
Entry Level
Qualifications
Proven experience in UX research methodologies, including usability testing, surveys, and interviews. Strong analytical skills with the ability to synthesize data into actionable insights. Excellent communication and presentation skills to convey research findings effectively. Familiarity with design tools like Sketch, Figma, or Adobe XD is a plus. A degree in Human-Computer Interaction, Psychology, Design, or a related field is preferred.
About the job
Ruby Labs is seeking a User Experience Researcher based in the European Union. This position centers on understanding how people interact with digital products and using those insights to inform design choices.
Role overview
The User Experience Researcher works closely with designers and product managers to gather and interpret user feedback. This role combines qualitative and quantitative research methods to uncover user needs and behaviors, helping the team create products that are both intuitive and satisfying to use.
What you will do
Conduct research to explore user behaviors and preferences
Analyze feedback from users to identify trends and opportunities
Collaborate with cross-functional teams to improve digital product experiences
Requirements
Experience with both qualitative and quantitative research methods
Strong interest in user-centered design
Ability to work effectively with designers and product managers
About Ruby Labs
At Ruby Labs, we are dedicated to creating innovative solutions that enhance user experiences across various platforms. Our collaborative environment fosters creativity and encourages team members to push boundaries and explore new ideas. We believe in the power of design and research to drive success and are committed to building a diverse and inclusive team.
About Thrill LabsAt Thrill Labs, we are not merely developing a gaming company; we are crafting a global phenomenon. As the pioneering force behind Thrill.com, an innovative crypto gaming platform set to launch shortly, our mission is to create the world's most extraordinary gaming brand and deliver enchanting experiences to millions of users. Supported by a…
About Thrill LabsAt Thrill Labs, we are pioneering the future of gaming, not merely as a company, but as a global phenomenon. Our flagship project, Thrill.com, is an innovative crypto gaming platform that is set to revolutionize the industry! Our vision is to establish the most legendary gaming brand, delivering enchanting experiences to millions. With a world-class team, we are committed to transforming the gaming landscape.Role OverviewJoin our dynamic and rapidly expanding tech startup as a seasoned Infrastructure/DevOps Engineer. In this pivotal role, you will take charge of our AWS cloud environment, architecting secure, scalable, and cost-effective infrastructure while managing and enhancing our Kubernetes clusters, networking, observability, and autoscaling solutions.Operating at scale with over 10 million transactions processed daily, we seek someone with robust experience managing high-scalability projects. You will utilize Infrastructure-as-Code and configuration management best practices, working closely with backend and frontend teams to influence architecture and improve the developer experience.If you thrive on ownership, enjoy modern technology stacks, and excel at solving intricate challenges, we would love to connect with you.
About Thrill LabsAt Thrill Labs, we're not merely creating a gaming company; we're on a mission to ignite a global phenomenon in the world of crypto gaming. As the creative minds behind Thrill.com, we are poised to launch an innovative platform that promises to captivate millions. Our goal is to establish the world’s most iconic gaming brand, delivering enchanting experiences powered by a stellar team dedicated to reshaping the future of gaming.About the RoleAre you ready to lead the charge in the crypto iGaming revolution where cutting-edge technology meets immersive gameplay? We're on the lookout for a Senior Front-End Engineer who is not only skilled but also passionate about crafting extraordinary user experiences. In this pivotal role, you will be instrumental in building and refining the user interface of our platform, ensuring seamless interaction and engagement.As a Senior Front-End Engineer, you will work collaboratively with designers, backend developers, and product managers to create exceptional interfaces that enhance user experiences, from gaming interactions to cryptocurrency transactions. Your efforts will be vital in transforming Thrill.com into a household name in the industry.Key Responsibilities:Develop new user-facing components, ranging from intuitive navigation to advanced betslip functionalities.Collaborate with product managers and designers to innovate and deliver signature user experiences.Convert APIs and Figma designs into stunning user products.Contribute to architectural and technological decisions for front-end development.Produce high-quality code, engage in peer code reviews, and implement test automation.Own the development of full components while ensuring seamless collaboration with backend and infrastructure teams.Monitor and optimize performance to maintain the efficiency and effectiveness of your components.
Join Our Team!At Ruby Labs, we are at the forefront of technology, creating and managing groundbreaking consumer products that redefine the way we engage with health, education, and entertainment. Our dynamic and innovative teams are shaping the future of consumer-centric solutions. If you’re passionate about technology and eager to make an impact, we invite you to explore our story here.Your RoleWe are seeking a talented Senior Backend Engineer who will be instrumental in designing, developing, and scaling the backend systems that support our AI product Use.ai. This position offers significant ownership and the opportunity to tackle complex distributed systems challenges, while ensuring the delivery of features and infrastructure excellence. Collaborate closely with our development team to maintain high standards of quality and alignment across projects.Key ResponsibilitiesDevelop and implement new backend features with an emphasis on scalability, performance, and reliability.Optimize and enhance existing services and infrastructure.Design, deploy, and manage backend services across AWS, Cloudflare, and other platforms.Utilize tools like Sentry and OpenTelemetry for monitoring and observability improvements.Address and resolve production issues within distributed systems.Write clean, maintainable code that adheres to SOLID principles and best practices.Lead investigations into incidents, perform root cause analyses, and enhance system reliability.Contribute to architectural decisions, documentation, and infrastructure planning.Foster open communication and uphold a culture of ownership and delivery.
Join Our TeamAt Ruby Labs, a pioneering technology company, we are dedicated to developing and managing innovative consumer products across health, education, and entertainment sectors. Our dynamic teams are at the forefront of consumer-oriented innovations, and we are eager to welcome passionate individuals to join our mission. Discover more about us here.Your RoleWe are excited to announce an opening for a Lead Full-Stack Engineer to spearhead the development of a new Direct-to-Consumer product within the AI sector. As a Lead Engineer, you will guide an engineering squad responsible for a crucial segment of our product, setting the technical vision and ensuring high standards for engineering quality and delivery.In this role, you will create and sustain scalable systems utilizing Next.js, TypeScript, React, and Redis. You will also oversee the development process, manage release schedules, perform code reviews, and provide mentorship to fellow engineers. A key requirement for this position is a proven track record in developing AI-driven tools or applications.You will collaborate closely with product leadership and management to guarantee that our engineering team consistently delivers reliable and high-performing features.
Role Overview Ruby Labs is hiring a Senior Next.js Full Stack Engineer based in the European Union. This role focuses on building and maintaining dynamic web applications as part of a collaborative development team. Projects often involve new features and technical challenges that require strong problem-solving skills and hands-on experience. What You Will Do Develop and enhance web applications using Next.js and related technologies Work closely with other engineers to deliver high-quality, maintainable code Contribute ideas and solutions to technical discussions within the team Take on new challenges as projects evolve Who We’re Looking For Significant experience with Next.js and full stack web development Comfort working in a team setting and sharing knowledge with peers Motivation to learn and adapt to new technologies and project needs Based in the European Union
Role Overview ruby-labs is hiring an Email Growth Manager to lead email marketing efforts focused on user engagement and retention. This role shapes the strategy and execution of campaigns that connect with our audience and support growth across all platforms.
About Matter LabsAt Matter Labs, we are passionate about the idea that freedom fosters progress and prosperity. Our mission is to promote freedom for everyone through the widespread adoption of cryptocurrency.To realize this vision, we are developing ZKsync, a secure blockchain network verified by zero-knowledge proofs. With over $250 million in backing from some of the most insightful investors, we prioritize speed and results in our operations.More than 20 teams are currently operating or developing custom ZKsync chains on our network, including leading crypto companies like Crypto.com, Abstract, and Lens, as well as global brands like Deutsche Bank and Xsolla.The RoleWe are searching for a Senior Partner Engineer who will play a pivotal role in driving real-world blockchain adoption. This position blends strong engineering expertise with exceptional interpersonal skills and is crucial to our strategy for onboarding the next billion users.If you have a passion for developing innovative and scalable Web3 applications, and possess experience in designing top-notch systems, we want to hear from you!What You Will AccomplishOnboard thousands of ZK Chains alongside financial institutions, DeFi Blue Chips, and Web2 enterprises.Develop the ZK Stack core codebase in alignment with customer requirements and prominent Web3 applications.How You Will Achieve ThisBe a results-oriented developer, thoroughly engaging with our codebase to address challenges across our smart contracts and more.
Ruby Labs builds and manages consumer products across health, education, and entertainment. The team focuses on practical, user-driven solutions and values technical curiosity. Learn more about the company at https://rubylabs.com/about-us/. Role Overview This Senior AI Engineer position centers on Node.js, Next.js, and TypeScript. The role shapes AI infrastructure and improves production-ready large language model (LLM) experiences. Day-to-day, the engineer makes data-driven decisions that affect model performance, reliability, and cost control. What You Will Do Develop prompt systems for LLMs and manage structured outputs. Design and orchestrate complex LLM workflows using tools such as LangChain and LlamaIndex. Maintain observability and strong debugging practices, using Langfuse and AI gateways like OpenRouter. Drive model quality and operational efficiency from experimentation through live production. Take full ownership of key AI features, ensuring they are robust and production-ready. Location This role is open to candidates based in the European Union.
About UsRuby Labs is an innovative technology company dedicated to developing and managing cutting-edge consumer products that span the health, education, and entertainment sectors. Our dynamic teams are at the forefront of consumer-driven solutions, and we are on the lookout for enthusiastic professionals to join our journey. Discover more about our mission and vision at: https://rubylabs.com/about-us/About the RoleWe are seeking a Senior Full-Stack Software Developer to join one of Ruby Labs' portfolio companies. This role involves designing and implementing robust user interfaces utilizing pre-built component libraries. It is tailored for developers who excel in structured environments, have a knack for translating design specifications into efficient, scalable code, and are committed to creating seamless, user-friendly experiences. If you thrive in a results-oriented atmosphere and take pride in delivering intuitive, scalable UI without ambiguity in design, this position is for you.Key ResponsibilitiesFrontend DevelopmentCraft high-quality user interfaces with Next.js, React, and TypeScript, utilizing libraries like NextJS, HeroUI, and Tailwind CSS.Produce clean, scalable, and maintainable code, ensuring optimal performance and responsiveness across various browsers and devices.Develop and maintain reusable frontend components.Backend DevelopmentBuild robust backend services and high-quality applications using Node.js (with Nest.js).Write clean, efficient, and scalable backend code.Design and optimize database schemas and queries for performance and scalability.UI Implementation & Design IntegrationAccurately convert design wireframes and layouts into functioning frontend implementations.Maintain consistency, usability, and accessibility across all UI implementations.Enhance interfaces for maximum performance and user satisfaction.Collaboration & ProcessWork closely with cross-functional teams to ensure seamless project delivery and integration.
Join ruby-labs as an AI Engineer and contribute to innovative projects that leverage artificial intelligence to solve complex challenges. We are looking for a passionate individual who is eager to work with cutting-edge technologies and collaborate with a diverse team of professionals.Your role will involve designing, implementing, and optimizing AI models and algorithms. You will have the opportunity to work on real-world applications and make a significant impact within the company.
About UsAt Ruby Labs, we are at the forefront of technology, developing and managing cutting-edge consumer products across the health, education, and entertainment sectors. Our teams are passionate about innovation and are dedicated to creating products that enhance the lives of consumers. We invite you to explore our journey and learn more about us at: https://rubylabs.com/about-us/About the RoleWe are on the lookout for a creative and driven Senior Performance Creative to elevate our marketing initiatives at Ruby Labs. In this full-time position, you will play a pivotal role in shaping our advertising strategies for multiple consumer-centric brands. Your responsibilities will include crafting compelling ad concepts, overseeing production schedules, and collaborating with cross-functional teams to ensure our creatives both engage and convert. You will report directly to the Ad Creative Lead and work closely with User Acquisition Managers to refine our advertising strategies based on performance insights.Key ResponsibilitiesCreative Development:Lead the brainstorming and conceptualization of innovative ad creatives that connect with diverse audiences, focusing on strategies that boost customer acquisition.Stay informed on market trends to incorporate cutting-edge elements into our creative production, ensuring our outputs are captivating and drive conversions.Collaborate with design teams to transform concepts into impactful ad creatives that align with brand identity and campaign objectives.Project Management:Manage the production workflow to ensure timely delivery of all projects while maintaining the creative vision, particularly in enhancing customer acquisition impact.Coordinate with designers, user acquisition managers, and other stakeholders to facilitate smooth operations and high-quality results.Performance Analysis:Work in tandem with User Acquisition Managers to evaluate the performance of ad creatives across various platforms, identifying successful strategies and areas for improvement.
Ruby Labs develops and manages consumer products spanning health, education, and entertainment. The company encourages teams to create new solutions for everyday challenges. More about the company’s mission can be found at https://rubylabs.com/about-us/. Role overview This Lead Senior Conversion Rate Optimization Manager position is based in the European Union. The main focus is to drive measurable improvements in conversion rates, with a specific target of achieving a 15% increase within one quarter. What you will do Own the entire conversion optimization process, starting from data analysis through to implementation. Create hypotheses and design high-fidelity mockups to test potential improvements. Collaborate closely with developers to ensure CRO initiatives are rolled out effectively. Take responsibility for performance outcomes, not just for making recommendations. Compensation Compensation is performance-driven. Significant financial rewards are available for those whose work delivers strong results.
About Us:At onhires, we are dedicated to developing a powerful and scalable trading platform tailored for high-traffic, latency-sensitive applications. Our infrastructure utilizes cutting-edge technologies to facilitate real-time trading while ensuring unmatched reliability and performance. Join us to contribute to the evolution of our platform and engineering culture.Job Summary:We are seeking a Lead DevOps & Platform Engineer to spearhead the design, implementation, and management of our AWS-centric infrastructure. In this crucial role, you will enhance the productivity of our product engineering team while ensuring platform scalability, reliability, and security. This position blends elements of DevOps, Platform Engineering, and Site Reliability Engineering (SRE). You will advocate for best practices, influence our engineering culture, and guarantee that our platform remains robust, efficient, and future-ready.Key Responsibilities:Platform EngineeringInfrastructure Design: Design and implement scalable infrastructure to support the deployment and management of our trading platform.Developer Tooling: Create and maintain internal tools that enhance developer workflows, including sophisticated CI/CD pipelines.Infrastructure as Code (IaC): Advocate for and implement IaC practices using Terraform, CloudFormation, or Pulumi.Core Services Management: Oversee and optimize platform-critical services, including:NATS ClusterRabbitMQAWS RDS PostgreSQLRedis ClusterDevOpsAutomation and CI/CD: Streamline and optimize deployment processes to ensure smooth continuous integration and delivery.Container Orchestration: Oversee and scale containerized workloads utilizing Kubernetes and Docker.Cloud Optimization: Assess and enhance cloud resource utilization for optimal performance and cost-effectiveness.Site Reliability Engineering (SRE)Reliability Metrics: Develop and uphold Service Level Objectives (SLOs) and Service Level Indicators (SLIs).Monitoring & Observability: Implement monitoring tools and dashboards (e.g., Prometheus, Datadog, Grafana) for enhanced visibility into system performance.
We are seeking a highly motivated and experienced Senior Growth Product Manager to join our dynamic team at ruby-labs. In this role, you will play a pivotal part in driving product growth and enhancing user engagement through innovative strategies and data-driven decisions.Your responsibilities will include analyzing market trends, defining product roadmaps, collaborating with cross-functional teams, and leading initiatives that contribute to our overall growth objectives. You will have the opportunity to leverage your expertise in product management to develop and implement solutions that meet the needs of our users and drive business success.
Full-time|$85K/yr - $85K/yr|Remote|Remote in Europe
Join Sanity.io, where we are pioneering the future of AI-driven Content Operations. Our innovative AI Content Operating System empowers teams to model, create, and automate content in alignment with their unique business needs, propelling digital development and enhancing content operation efficiency. Industry leaders like SKIMS, Figma, Riot Games, Anthropic, COMPLEX, Nordstrom, and Morningbrew trust Sanity to streamline and automate their content workflows.We are seeking a compassionate Senior Support Engineer who excels at tackling complex technical challenges and is dedicated to ensuring our customers succeed with Sanity at scale.In this vital role, you will take ownership of high-impact issues, guide enterprise clients through intricate implementations, and enhance the systems, workflows, and documentation that underpin our support organization.This position is not merely about responding to support tickets; it demands robust technical acumen, composed communication during high-pressure situations, and the capability to transform persistent customer challenges into enduring solutions.
About UsAt Ruby Labs, we pride ourselves on being a pioneering technology firm dedicated to developing and managing cutting-edge consumer products. Our diverse portfolio encompasses exciting opportunities in health, education, and entertainment sectors. We are at the forefront of consumer-driven innovation and are continuously seeking enthusiastic talent to join our team. Discover more about our journey at: https://rubylabs.com/about-us/About the RoleWe are in search of a motivated and experienced Mid-Senior UX Researcher who will significantly influence our product development and user experience. This role involves conducting in-depth research, analyzing user interactions, and crafting intuitive wireframes for both desktop and mobile platforms.Key ResponsibilitiesPerform competitor and market analysis to gain insights into user behaviors, journeys, challenges, and requirements.Evaluate existing user interfaces and the design of our current offerings.Employ design tools such as Visily or Figma to produce wireframes, prototypes, and mockups.Create detailed user personas, customer journey maps, and conduct usability studies to facilitate data-driven decision-making.Work collaboratively with product managers, developers, and designers to ensure a coherent user experience.Validate design concepts through A/B testing, surveys, interviews, and analytics.Document research outcomes and present key findings to stakeholders.Keep abreast of industry trends and best practices in UX to continually enhance our methodologies.
Ruby Labs is seeking a User Experience Researcher based in the European Union. This position centers on understanding how people interact with digital products and using those insights to inform design choices. Role overview The User Experience Researcher works closely with designers and product managers to gather and interpret user feedback. This role combines qualitative and quantitative research methods to uncover user needs and behaviors, helping the team create products that are both intuitive and satisfying to use. What you will do Conduct research to explore user behaviors and preferences Analyze feedback from users to identify trends and opportunities Collaborate with cross-functional teams to improve digital product experiences Requirements Experience with both qualitative and quantitative research methods Strong interest in user-centered design Ability to work effectively with designers and product managers
Ruby Labs is looking for a Growth Manager based in the European Union. This position focuses on developing and executing strategies to increase customer acquisition and expand market reach. Role overview The Growth Manager will shape and implement growth initiatives across various channels. The role involves analyzing data to spot new market opportunities and improve outreach efforts. Contributing to the company’s expansion, this position requires both creative thinking and strong analytical skills. What you will do Drive growth strategies to support business scaling Identify and evaluate new market opportunities Enhance customer acquisition through multiple channels Requirements Experience with growth strategy and customer acquisition Strong analytical and problem-solving skills Ability to work with cross-functional teams
About UsAt Ruby Labs, we are at the forefront of technology, developing and managing cutting-edge consumer products. Our portfolio spans various sectors, including health, education, and entertainment, providing numerous opportunities for innovation and creativity. We are passionate about creating products that enhance the lives of consumers and are constantly seeking enthusiastic individuals to join our dynamic team. Discover more about our journey and mission at Ruby Labs.About the RoleWe are currently seeking a talented Lead React Native Developer to join our expanding engineering team. In this pivotal role, you will be responsible for spearheading our mobile initiatives, focusing on product quality and tackling architectural challenges. You will have the opportunity to take ownership of critical features that our users depend on, while significantly contributing to the enhancement and scalability of our mobile applications.Your expertise will be instrumental in shaping the future of our mobile offerings, collaborating with backend and product teams to ensure a seamless, high-performance user experience.Key ResponsibilitiesOversee the development and launch of new mobile product features.Enhance and maintain the existing React Native codebase to ensure optimal performance and stability.Define and evolve mobile architecture, system design, and technical strategies.Collaborate with backend, product, and design teams to create scalable solutions.Establish reliability, performance, and observability standards for mobile applications.Manage production debugging, incident investigations, and root cause analyses.Facilitate improvements in build systems, CI/CD processes, releases, testing, and app store submissions.Mentor junior engineers and cultivate a culture of quality, accountability, and excellence.Support recruitment efforts to build a top-tier mobile engineering team.Champion performance optimizations across various metrics including rendering, navigation, and offline capabilities.Lead with a focus on accountability for failure scenarios, API degradation, user recovery experiences, and resilience.Qualifications5+ years of experience in mobile application development, with a strong focus on React Native.2+ years in a technical leadership or lead developer role.Proficient in mobile architecture, design patterns, and best practices.Experience with CI/CD tools and automated testing frameworks.Strong problem-solving skills with a passion for coding and software design.Excellent communication skills, both verbal and written.
