AI Full Stack Engineer (Node.js) at Almedia | Berlin

Join Almedia, a pioneering company on a mission to redefine marketing in the digital age. With aspirations to become Germany's next bootstrapped unicorn, we are already recognized as Europe's #3 fastest-growing company by the FT1000 in 2025.At Almedia, we empower our community of over 60 million users by rewarding them for engaging with our partners' products, creating an innovative user acquisition strategy for some of the world's largest brands.About the RoleAs an AI Full Stack Engineer, you will develop and enhance internal tools and applications, seamlessly integrating AI functionalities into our existing systems. You will work across the technology stack, connecting to AI APIs, while collaborating with various business teams to optimize their workflows.Your ResponsibilitiesDesign, develop, and maintain full stack applications, covering front end, back end, and databases.Create and support back-end services utilizing Node.js.Integrate and manage AI APIs within new and existing systems.Leverage prompting techniques and cutting-edge AI tools to craft impactful AI-driven features.Navigate through multiple systems and data sources to consolidate fragmented information.Collaborate with teams across marketing, user acquisition, and operations to:Gain insights into their tools and workflows.Identify opportunities for AI to enhance their processes.Translate business needs into technical solutions and iterate on them.Essential QualificationsProven experience with Node.js in a production environment.Demonstrated ability to integrate and utilize AI APIs.Strong programming skills with a solid foundation in engineering principles.Comprehensive full stack knowledge: front end, back end, and databases.Proficient prompting techniques and adept at employing current AI tools.Exceptional communication skills, particularly with non-technical stakeholders.A curious mindset with a strong willingness to learn, especially about AI technologies.Preferred QualificationsFamiliarity with TypeScript.

Join Almedia, a pioneering force in the marketing sector, where ambitious individuals can rapidly advance their careers. We are on a mission to become Germany's next bootstrapped unicorn, recognized as Europe’s #3 fastest-growing company in 2025 by the FT1000.At Almedia, we are revolutionizing marketing by rewarding our community of over 60 million users for their engagement with products from top-tier advertisers, creating a novel approach to user acquisition.We are seeking a seasoned Frontend Engineer who will take charge of our frontend architecture, uphold high standards of code quality, and play a pivotal role in shaping product direction through hands-on development and strategic partnerships.

Join Almedia, a pioneering force in reshaping the marketing landscape. We are on a mission to become Germany’s second bootstrapped unicorn, already recognized as Europe’s third fastest-growing company in 2025 (FT1000).At Almedia, we empower our community of over 60 million users by rewarding them for engaging with our advertisers’ products. Our innovative approach is transforming user acquisition strategies for some of the largest companies worldwide.Data EngineerAs a Data Engineer at Almedia, you will play a pivotal role in designing, implementing, scaling, and maintaining the code that drives our production environment. Enjoy the freedom to innovate as you develop the next generation of our data and backend platforms—building robust APIs, pipelines, and leveraging both self-managed and cloud infrastructure to deliver reliable, high-impact systems.A strong technical mindset and a passion for continual improvement are essential.

Are you ready to reshape the marketing landscape? At Almedia, we provide an extraordinary opportunity for those looking to accelerate their careers in a groundbreaking environment. As we set our sights on becoming Germany's next bootstrapped unicorn, we have already achieved recognition as Europe’s #3 fastest-growing company in 2025 (FT1000).Join us in our mission to redefine marketing by rewarding a vibrant community of over 60 million users for their engagement with leading advertisers. We are pioneering a novel approach to user acquisition for some of the world’s largest brands.We are seeking a passionate Founding Engineer to partner with our leadership team on transformative, zero-to-one projects. If you thrive on taking ownership, moving swiftly, and building impactful products from scratch, we want to connect with you.

Join Almedia, where ambition meets innovation. We are not just another company; we aim to become Germany’s next bootstrapped unicorn and are already recognized as Europe’s #3 fastest-growing company (FT1000, 2025). At Almedia, we’re revolutionizing marketing by empowering a community of over 70 million users who earn rewards for engaging with top brands. This is your chance to contribute to a groundbreaking approach to user acquisition for global enterprises.MLOps EngineerAs an MLOps Engineer, you will play a pivotal role in designing, scaling, and optimizing backend systems that enable our payout automation and growth initiatives. Your expertise will help transform intricate business logic into dependable, scalable data-driven systems.This hands-on position involves active engagement in architecture, automation, and the delivery of high-performance Python systems.Key ChallengesDeveloping automated systems for payout structure generation and transformation.Creating dynamic, personalized payout algorithms based on user behavior.Building continuous split-testing infrastructure to enhance payout experimentation.Scaling high-performance Python systems integrated with real-time data and machine learning pipelines.Your ResponsibilitiesOversee the complete delivery cycle: build, deploy, and optimize backend systems and services at scale.Establish technical direction and coding standards for Python development within ML and data projects.Align technical architecture with business objectives to minimize complexity and enhance efficiency.Collaborate with ML engineers and product teams to develop frameworks for experiment versioning and evaluation.Improve system reliability and performance to ensure robustness and scalability.

Join Almedia, a forward-thinking company that accelerates career growth for those eager to push the boundaries. As Germany's aspiring second bootstrapped unicorn and Europe’s #3 fastest-growing company according to the FT1000 in 2025, we are revolutionizing marketing by rewarding our community of over 60 million users for engaging with top brands.We are on the lookout for a talented Backend Engineer to enhance our AdTech platform. If you have a passion for developing scalable and high-performance web applications and thrive in a collaborative team environment, we want to hear from you!Tech Stack:TypeScript, NestJS, Jest.GraphQL, REST, gRPC, WebSockets.MySQL, MongoDB, Redis, BigQuery.RabbitMQ, Google Pub/Sub.Docker, Kubernetes, GitLab CI/CD.Datadog.What You’ll Do Write clean, efficient, and scalable code utilizing NestJS and TypeScript.Create a data-driven product by integrating external services for A/B testing and feature flagging.Deliver high-quality, testable code swiftly, ensuring smooth operations.What You’ll Bring Proven experience in web development.Solid understanding of scalable systems.Experience with most of our tech stack in a production environment.An ownership mindset: taking full responsibility for your work.Strong English communication skills for effective teamwork.What Makes You a Great Fit Experience with microservices architecture.Background in DevOps/SRE practices.Why Choose Almedia? Dynamic work environment.Fast career advancement opportunities.Innovative projects with real impact.

Join Almedia, a rapidly growing company poised to become Germany's next unicorn. As Europe's third fastest-growing business in 2025 (FT1000), we are redefining the marketing landscape by rewarding our community of over 60 million users for their engagement with premier brands.We are seeking a dynamic Accountant to manage comprehensive in-house accounting for our German operations. You will oversee the bookkeeping and VAT compliance using DATEV, ensuring timely and accurate financial closes and maintaining meticulous ledgers. Your role will involve a swift transition from external providers, enhancement of financial tools and workflows, and addressing root causes to facilitate dependable group reporting while mentoring junior team members.Key Responsibilities Manage full bookkeeping for the German entity through DATEV Rechnungswesen, including accounts receivable/payable, bank reconciliations, and compliance with HGB and VAT regulations.Transition accounting data from external bookkeepers into a structured DATEV system; establish standard operating procedures, access controls, and limit external partnerships to advisory roles.Oversee intercompany billing, conduct monthly reconciliations, enforce uniformity in the chart of accounts, and provide validated schedules for group reporting and annual statements.Integrate Yokoy and other systems with DATEV, validate tax mappings, design streamlined procure-to-pay and expense workflows, and eliminate repetitive entry errors through targeted automation.Collaborate closely with Finance and HR: post and reconcile payroll entries, provide timely reconciled data, identify risks to maintain accurate closures and audits, and guide junior colleagues.Qualifications Demonstrated experience in managing bookkeeping for a German entity within DATEV Rechnungswesen, including accounts receivable/payable and bank reconciliations.Familiarity with HGB and VAT regulations, and proven ability to handle accruals and deferrals accurately.Strong analytical skills and experience in financial systems integration.Effective communication and mentoring skills.

Join Almedia, a dynamic and innovative company where ambition meets opportunity. As we strive to become Germany’s next bootstrapped unicorn, we are proud to be recognized as Europe’s third fastest-growing company in 2025 according to the FT1000.At Almedia, we are revolutionizing the marketing landscape by enabling our vast community of over 60 million users to earn rewards for interacting with our advertisers' products, providing a unique approach to user acquisition for major global brands.Machine Learning EngineerIn this pivotal role, you will be responsible for the design, development, and scaling of production-grade machine learning solutions that drive the innovation of Almedia’s offerings and support our growth trajectory.This is a hands-on position where you will actively engage in coding, development, and deployment of solutions.Key Challenges You Will Tackle:Creating and optimizing user reward systems tailored to player behavior and market trends.Spearheading the development of personalized, real-time reward mechanisms.Identifying and addressing underperforming reward initiatives and their underlying issues.Your Responsibilities Include:Overseeing the complete delivery lifecycle: develop, deploy, and optimize scalable solutions and services.Providing technical guidance on ML projects, upholding best practices and ensuring high coding standards.Aligning technical capabilities with business goals to capitalize on high-value opportunities.Utilizing advanced statistical and causal inference techniques to secure robustness and reliability in solutions.Collaborating with product and engineering teams to convert business challenges into predictive, data-driven solutions.Qualifications Required:Demonstrated expertise in building, deploying, and maintaining production-level solutions and services, preferably in adtech or high-scale environments.Solid understanding of statistical analysis (A/B testing, regression, probability).Proficient in programming with Python and SQL, with practical experience in cloud technologies.Proven ability to mentor and guide ML engineers and cross-functional colleagues.Excellent communication skills and a collaborative mindset.

Join Almedia, a pioneering company on a mission to revolutionize marketing by rewarding a community of over 60 million users for their engagement with global brands. Here, you can accelerate your career in an exciting environment aiming to become Germany's next bootstrapped unicorn, recognized as Europe's #3 fastest-growing company in 2025 (FT1000).We are seeking a passionate and skilled Site Reliability Engineer / DevOps to help us maintain the performance and reliability of our high-traffic platform.

At Almedia, we are redefining the landscape of marketing and user engagement. As one of Europe’s fastest-growing companies, we are on a mission to become Germany’s second bootstrapped unicorn. Our innovative platform rewards a community of over 60 million users for interacting with our advertisers’ products, creating a unique ecosystem for user acquisition.We are seeking talented Data Scientists to join our dynamic team in Berlin, where you will play a crucial role in enhancing our product and data capabilities.In this high-impact position, you will leverage your expertise in hands-on modeling and cross-functional leadership to enable us to better understand user behaviors, optimize incentive structures, and lay the groundwork for scalable, data-driven decision-making.

Almedia is building a new kind of work experience in Berlin. Our team is driven by ambition and a focus on results. We aim to become Germany’s next bootstrapped unicorn and have already been named Europe’s #3 fastest-growing company in 2025 by the FT1000. Our platform rewards a community of over 70 million users for engaging with advertiser products, offering a new approach to user acquisition for some of the world’s largest brands. Role Overview The Employer Branding Partner will own Almedia’s employer brand strategy in Germany. This role combines autonomy with strategic impact, focusing on partnerships with universities, events, and communities. The goal: strengthen our brand presence and raise hiring standards while improving the candidate experience. Main Responsibilities Shape and execute the Germany strategy: Design and launch a scalable university partnership and ambassador program. Lead both on-campus and digital initiatives that can serve as models for the wider team. Run multi-channel campaigns: Plan and deliver integrated campaigns to boost unaided awareness among German students. Use rapid testing and iteration to turn interest into qualified applications. Highlight our culture: Build and evolve a culture-focused program that showcases our high-performing teams and the benefits of our in-office, full-time work model. Oversee the events portfolio: Source, negotiate, and manage a diverse calendar of meetups, conferences, and partner events. After each event, analyze results to guide future budget decisions and focus on hiring outcomes. Set up data-driven measurement: Develop a cross-functional framework and live dashboard to connect employer brand activities with pipeline quality, onsite performance, and offer acceptance rates.

At Almedia, we redefine traditional career paths. We are on a mission to become Germany's next bootstrapped unicorn and are already recognized as Europe's #3 fastest-growing company in 2025 according to the FT1000.Join us in revolutionizing the marketing landscape by engaging our community of over 60 million users and connecting them with leading global brands.As a member of the Almedia team, you will:Take on substantial responsibility quickly — we empower our team members to lead from day one.Thrive in a high-intensity environment — this is not a conventional 9-to-5 job. We value drive and commitment.Collaborate with driven individuals — work alongside a team that embraces speed, ambition, and ownership.Be engaged and present — our team is in the office five days a week, fostering a dynamic and collaborative atmosphere.Your RoleYou will be responsible for overseeing all organic social media channels for FreeCash. This includes everything from conceptualizing and creating content to publishing, testing, and iterating strategies. You will spearhead initiatives in:User Acquisition: Craft compelling content that attracts and converts new users.User Activation: Foster engagement and promote active usage among existing users.User Retention: Develop captivating narratives that keep our community engaged.Key ResponsibilitiesOversee and manage FreeCash’s entire social media presence.Create, design, and publish engaging social content on a daily basis.Launch and execute comprehensive organic marketing campaigns.Analyze content performance data continuously to refine strategies.Uphold high creative standards in terms of tone, visuals, and pacing.Drive revenue growth, increase sign-ups, and boost in-app purchases via organic channels.Expand reach, follower count, and engagement on platforms like X, Facebook, Instagram, Discord, Reddit, TikTok.Cultivate and maintain a loyal community around FreeCash.Proactively manage and mitigate any negative brand sentiment.

Join almedia as a Backend Engineer specializing in FastAPI. In this role, you will be responsible for developing and maintaining robust backend services that power our innovative digital solutions. Collaborate with cross-functional teams to create scalable applications that enhance user experiences.

About the PositionJoin our dynamic team as a Staff Full-Stack Engineer where your expertise will play a pivotal role at the intersection of product development, infrastructure, and AI-powered solutions. In this influential position, you will spearhead the architecture and continuous improvement of scalable web applications, contributing significantly to the foundation of Bluefish's AI marketing platform.Your collaboration will span multiple teams, working closely with AI engineers, product managers, designers, and infrastructure specialists to convert abstract product concepts into robust and scalable systems. Beyond just feature development, you will define architectural patterns, steer technical direction, and make certain that engineering decisions align with our company’s growth trajectory.We seek an individual with a strong focus on product and system thinking, dedicated to delivering sustainable solutions and creating measurable impacts for our customers.As a technical leader within our engineering division, you will enhance engineering practices across teams by leading design reviews, mentoring senior engineers, and establishing standards that facilitate rapid progress while ensuring reliability and quality.This role provides the chance to shape the architecture of core systems, influence the overall technical strategy of the company, and define how AI-assisted development will drive the future of marketing technology.Note: This role is primarily associated with our office in Berlin, but we offer remote work options within Germany.

Join Mirelo AI, a pioneering force in creative technology that transforms video content through realistic sound, speech, and music generation.We are at the forefront of generative AI, crafting innovative foundational models that 'unmute' silent videos, delivering custom, hyper-realistic audio tailored for gaming, video platforms, and content creators. Our groundbreaking technology empowers storytellers worldwide to elevate their narratives.Having successfully secured a $41 million Seed round co-led by Andreessen Horowitz and Index Ventures, with contributions from Atlantic, we're experiencing rapid growth across our Product, Engineering, Go-to-Market, and Growth teams.About the RoleAs a Full-Stack Software Engineer at Mirelo, you'll be an integral part of our dynamic, fast-paced team, developing tangible products based on our advanced generative audio models. This position emphasizes hands-on involvement and significant ownership: you'll be responsible for delivering end-to-end features throughout our tech stack, collaborating directly with research and product teams, and influencing the practical application of our technology for users and partners alike. As we enhance our go-to-market strategies, your engineering contributions will play a vital role in both user-facing products and intricate integrations with various platforms, tools, and enterprise collaborators.Key ResponsibilitiesDesigning and maintaining our innovative products leveraging cutting-edge generative AI models for audio and music.Take full ownership of delivering end-to-end features across both front-end and back-end systems, while also guiding the trajectory of the features and products you develop.Engage closely with our research and sales teams; stay attuned to user needs, identify practical opportunities, and convert them into actionable engineering tasks.Utilize our existing tech stack effectively: TypeScript, React, Tailwind, shadcn, and Convex for backend development.Implement essential cloud services—primarily AWS Lambda and S3—for seamless integrations, automation, and deployment workflows.Leverage modern AI-assisted development tools (e.g., Cursor, Claude Code) to expedite processes while maintaining high-quality craftsmanship.Foster clear communication with team members, actively participate in discussions, and collaboratively drive the technical direction.Ideal Candidate ProfileA minimum of 5 years of professional web development experience, ideally in dynamic product or startup environments.Proven expertise in front-end frameworks such as React and back-end technologies.Strong understanding of cloud services, particularly AWS.Excellent problem-solving skills and a collaborative mindset.A passion for technology and a desire to contribute to transformative projects.

Superhuman embraces a vibrant hybrid working model for this position. This adaptable approach allows team members to enjoy focused work time while also engaging in face-to-face collaboration that cultivates trust, creativity, and a robust team culture.About SuperhumanSuperhuman is an AI productivity platform on a mission to unlock the superhuman potential in everyone. As part of Grammarly, our suite of applications seamlessly integrates AI into daily workflows, working alongside over 1 million applications and websites. Our offerings include Grammarly’s writing assistance, Coda’s collaborative workspaces, Mail’s inbox management, and Go, our proactive AI assistant that anticipates users' needs. Founded in 2009, Superhuman serves over 40 million individuals, 50,000 organizations, and 3,000 educational institutions globally, enabling them to eliminate busywork and concentrate on what truly matters. Discover more at superhuman.com.The OpportunityTo propel our ambitious objectives, we are seeking Full-Stack Software Engineers to join our engineering teams. As a Full-Stack Engineer at Superhuman, you will be pivotal in developing essential components of our product offerings, infrastructure, and features that assist 40 million users in writing clearly and effectively each day. You will work on both Front-End and Back-End, contributing to significant, high-impact projects.Our engineers and researchers are encouraged to innovate and discover breakthroughs that can shape our product roadmap. As we scale our interfaces, algorithms, and infrastructure, the complexity of our technical challenges is expanding rapidly. You can learn more about our team's insights on our technical blog.Superhuman is experiencing rapid growth. There are ample opportunities to join a team, learn from seasoned professionals, and build product offerings and teams from the ground up. Within our expanding engineering organization, you will find numerous opportunities for ownership and making a direct impact on users.As a Full-Stack Engineer, you will:Begin building and deploying code in your first week and launch impactful features in your initial months.Create and maintain production services with high call rates on the Back-End while developing engaging user interfaces on the Front-End.Aim for high availability for both consumer and enterprise customers.Collaborate extensively with internal teams such as Core, Growth, and Enterprise.

Join Finanzcheck, the premier online loan comparison platform in Germany. We are at the forefront of revolutionizing the credit market and were honored with the Kununu Top Employer Award in 2022. Be part of our exciting journey! Our engineering teams work with a high level of autonomy, taking full ownership of their respective areas within our platform, including associated services and systems. We promote collaborative environments with clear technical protocols and shared standards that enable smooth interactions. By leveraging deep expertise, maintaining open communication, and engaging in collective decision-making, we successfully navigate our ambitious roadmap. YOUR NEW TEAM We are searching for a Senior Software Engineer to join our Offers and Checkout team, dedicated to empowering loan customers with intuitive and transparent digital services. Our goal is to ensure a seamless transition from loan selection to checkout, allowing our customers to feel confident and in control at every step. Our cross-functional team comprises Frontend, Full Stack, Backend, Quality Assurance, and Design roles, collaborating closely with our Product Owner and stakeholders. WHAT YOU WILL BE DOING Own and deliver complex end-to-end features for our Offers, Checkout, and Customer Area domains, utilizing React and TypeScript for the frontend and Node.js (TypeScript) for the backend. Act as a driving force for Automation and AI-driven UX development, leveraging your expertise to identify, test, and integrate AI solutions to enhance our development speed and testing quality. Build and maintain stable, scalable services within a data-heavy, distributed AWS environment, utilizing Kubernetes, AWS Lambda, and event-driven architectures. Collaborate closely with Product Owners and UX Designers to create high-conversion customer journeys, ensuring a trustworthy and seamless self-service experience. Drive high engineering standards for code quality, performance, and security, while actively participating in technical decision-making regarding technology stack, tools, and architecture within the team. Embody the philosophy of

Why Choose voize? More Than Just a Job!At voize, we're revolutionizing the way frontline professionals manage their time. Our AI technology allows care staff and field workers to effortlessly speak their notes, transforming them into structured documentation. This innovation saves up to 39 minutes per person each day while enhancing overall quality. Backed by Y Combinator and utilized by over 1,000 facilities, our growth trajectory is impressive. Become part of a team where cutting-edge technology meets tangible real-world impact. Your MissionIn the role of a Full Stack Engineer, you will take charge of our customer-facing web platform tailored for nursing managers and administrators while also collaborating on essential backend services. Your primary objective will be to equip our customers with valuable insights and controls that showcase how voize enhances their organizational processes, streamlining nursing tasks and providing an intuitive management system for their fleet of voize devices. Your contributions will be pivotal to voize's expansion, empowering both nursing staff and management alike. Your Daily Responsibilities - A Diverse ExperienceLead the development of the nursing management web application, delivering exceptional user experience through modern React and TypeScript.Collaborate on backend services while contributing to CI/CD processes and testing.Design and implement secure, user-friendly device configuration, data-intensive dashboards, and scalable account flows across various industries.Influence product decisions that deliver real value to users.Identify and resolve bugs while proactively monitoring error logs to ensure quality. Your Qualifications - What You BringStrong product and end-to-end thinking with a UX-focused end-user perspective.Extensive experience in modern React and sound knowledge of TypeScript architecture.Proficient in backend development, particularly with Kotlin.Excellent communication skills across teams, with a comfort for rapid iteration and independent work.Solid understanding of Git workflows, collaboration practices, and a strong testing discipline coupled with CI/CD experience. Our Success Mindset - The voize ApproachWe view challenges as opportunities and iterate swiftly to deliver impactful solutions.

Join Tilla, an innovative SaaS start-up, as we revolutionize crew logistics at the intersection of global shipping and travel. Our dynamic international team is dedicated to transforming how seafarers reach their vessels, ensuring that every crew change is optimized and digital.With over 10,000 crew changes facilitated annually across 600+ vessels, we are backed by strong investors and are committed to enhancing operational efficiency, reliability, and the overall experience for seafarers and operators alike. At Tilla, we believe in making crew operations not just more efficient, but also more humane.Your MissionAs a Full Stack Engineer, you will play a pivotal role in driving product initiatives. This position offers the chance to influence technical decisions and grow into a backend lead role as our company scales. You will thrive in our data-driven, performance-critical environment, where accuracy, reliability, and usability are paramount.Our Tech StackFrontend: React, Next.js, TypeScript, ShadCNBackend: NestJS, GraphQL, Prisma, AWS (Lambda, SQS, RDS, ECS)State Management: Apollo Client, React QueryTesting: Jest, PlaywrightOwn & Ship Features End-to-End: Lead product initiatives from conception through implementation, testing, and deployment.Integrations & APIs: Design and maintain integrations with third-party systems, ensuring secure and scalable data flows while contributing to areas with direct revenue impact.

KAYAK is part of Booking Holdings (NASDAQ: BKNG) and operates as a leading travel search engine. The company processes billions of queries across its platforms, helping travelers find flights, hotels, rental cars, and vacation packages. KAYAK also develops solutions for business travel, including KAYAK for Business. The Berlin office is home to a growing team that works on a portfolio of well-known metasearch brands such as momondo, Cheapflights, and HotelsCombined. Innovation remains central to KAYAK’s approach, and each team member has the opportunity to contribute to the company’s mission: building the best travel search engine for effortless global exploration. This Full Stack Engineer role focuses on developing and improving KAYAK’s B2B platform. The platform serves established clients and is positioned for further growth. The position is based in Berlin and requires in-office presence at least three days per week. What you will do Work closely with a global team to develop B2B products. Partner with designers, product managers, and commercial teams to define and deliver new features. Design and build scalable, high-performance solutions. Contribute to architecture decisions that improve performance, quality, and code reusability. Troubleshoot and resolve recurring technical issues. Use AI coding tools to increase productivity. Requirements Degree in Computer Science or a related field. At least 5 years of professional experience in web development. Strong skills with TypeScript, React, and CSS (Sass or Less) for front end work. Experience with Java, Java Spring, JVM ecosystems, and familiarity with databases such as PostgreSQL, MySQL, or Redis. Comfort with writing unit and end-to-end tests. Proven debugging ability in a full-stack environment. Benefits Health Insurance 401k