AI Application Engineer – AI Products (LLM & RAG) (m/f/d)

At Machine Learning Reply, we empower organizations to harness advanced AI technologies, transforming them into practical applications and scalable digital products.We are seeking an enthusiastic AI Application Engineer to join our team, focusing on the development of AI-driven solutions and intelligent product enhancements utilizing state-of-the-art machine learning and generative AI technologies.While our GenAI Engineers concentrate on model creation and AI architecture, you will prioritize the development of user-centric AI applications, turning AI functionalities into robust products.In this role, you will operate at the convergence of AI engineering, backend development, product innovation, and cloud deployment, crafting production-ready AI systems that deliver tangible business outcomes.

Join Machine Learning Reply, a leader in transforming advanced AI technology into practical, scalable solutions for organizations. We are searching for an enthusiastic AI Application Engineer to help create AI-driven applications and intelligent features leveraging cutting-edge machine learning and generative AI technologies.As part of our innovative team, you'll focus on developing user-centric AI applications, translating AI capabilities into market-ready products.This role positions you at the nexus of AI engineering, backend development, product design, and cloud deployment, crafting production-ready AI systems that deliver significant business impact.Key Responsibilities:Design and develop AI-powered applications for enterprise clients, including digital assistants, AI copilots, semantic search systems, and intelligent automation solutions.Create applications powered by LLM and Retrieval-Augmented Generation (RAG) using the latest AI frameworks.Develop comprehensive AI products that integrate LLM APIs with enterprise data sources and backend services.Architect scalable AI microservices and APIs to embed AI functionalities into enterprise platforms.Implement vector search, embeddings pipelines, and knowledge retrieval systems.Rapidly prototype AI features and proofs-of-concept, transitioning them to production-grade systems.Collaborate with product managers, designers, AI engineers, and enterprise clients to create impactful AI solutions.Deploy AI systems on cloud platforms following modern DevOps practices.Ensure reliable, scalable, and observable AI services through CI/CD pipelines, monitoring, and containerized deployments.What We Offer:An open and collaborative environment within the global Reply network, allowing you to build next-generation AI applications.Interdisciplinary collaboration with teams comprising AI engineers, software developers, and data scientists across diverse industries such as Banking, Insurance, Automotive, and Retail.An active social program featuring paid training, conferences, communities of practice, hackathons, and Reply XChange.Monetary benefits including a mobility package, gym subsidies, insurance, and pension schemes.

Machine Learning Reply brings advanced AI technologies into real-world use, helping organizations build scalable digital products. Role overview The AI Application Engineer will design and build user-facing AI solutions, focusing on intelligent product features that use large language models (LLMs) and retrieval-augmented generation (RAG). The work centers on turning complex machine learning and generative AI capabilities into practical applications for end users. What you will do Develop and deliver AI-powered applications that move advanced AI from concept to production-ready products. Collaborate with backend developers, product teams, and cloud specialists to create scalable systems. Integrate AI into digital products with attention to user experience and measurable business impact. Team structure This role focuses on building practical, user-facing solutions. AI Application Engineers work at the intersection of AI engineering, backend development, product, and cloud deployment. GenAI Engineers at Machine Learning Reply concentrate on model development and AI architecture, while this position emphasizes product integration and delivery. Location This position is based in Berlin, Germany.

At Machine Learning Reply, we empower businesses to transform cutting-edge AI technologies into practical applications and scalable digital products.We are seeking a passionate Junior AI Application Engineer to join our team, dedicated to developing AI-powered solutions and intelligent product features utilizing modern Machine Learning and Generative AI technologies.While our GenAI Engineers focus on model development and AI architectures, AI Application Engineers concentrate on crafting user-centric AI applications and translating AI capabilities into scalable products.In this role, you will collaborate across AI Engineering, Backend Development, Product Development, and Cloud Deployment to build production-ready AI systems that deliver tangible business value.ResponsibilitiesAs a Junior AI Application Engineer, you will design and develop AI-driven applications and product features for enterprise clients. Your responsibilities will include:Conceptualizing and developing AI applications such as enterprise assistants, copilots, semantic search platforms, and automation systems.Assisting in the development of LLM-based solutions (including RAG) and end-to-end AI products by integrating APIs, enterprise data, and backend services.Building scalable AI microservices, APIs, and vector search, embedding, and retrieval systems.Rapidly prototyping AI features and evolving them into production systems.Collaborating closely with product managers, designers, AI engineers, and clients to develop impactful solutions.Deploying AI systems in cloud and production environments using modern DevOps practices.Ensuring reliability, scalability, and observability through CI/CD, monitoring, and containerized deployments.BenefitsHYBRID WORKINGCOMPANY EVENTSEXPERT NETWORKCERTIFICATIONSRegular and systematic (external and internal) training opportunities in Generative AI, LLM development, Cloud architecture, and Data Science.Work in an open, flat environment, within a broad Reply network for knowledge exchange.

Join leapsome as a Lead AI Product Engineer and play a pivotal role in shaping innovative AI-driven products that enhance user experience and drive business success. In this dynamic position, you will lead a team of engineers, collaborate with cross-functional teams, and develop cutting-edge solutions that leverage the latest advancements in artificial intelligence.

Join our dedicated team at europeanhomecaregmbh as a Psychologist (m/f/d) in Berlin. We are seeking an empathetic and skilled professional to provide mental health support and counseling services to our diverse clientele.

Join idealo’s innovative AI Booster Team, where we drive the integration of generative AI technology across the organization. Collaborate closely with product teams to create reusable AI workflows and promote industry best practices. In this role, you will be pivotal in designing and deploying scalable LLM systems and agentic workflows, transforming concepts into rapid production rollouts.About Your New RoleWork together with cross-functional teams to conceptualize, prototype, and launch LLM-driven features within weeks.Design and implement sophisticated LLM workflows and agentic systems, including multi-agent orchestration and execution flows.Assess and choose appropriate models and inference infrastructures for tasks, balancing considerations of cost, latency, quality, and safety.Create reusable AI components (e.g., advanced RAG pipelines, evaluation frameworks, model adapters) that can be scaled across various products and teams.Promote automated evaluations, human-in-the-loop assessments, and continuous feedback loops to maintain quality, reliability, and cost efficiency.Act as a technical mentor by conducting office hours, reviews, and workshops to elevate GenAI skills throughout idealo.

About the RoleWe are on the lookout for two highly skilled backend engineers to join our dynamic team in Berlin. You will be instrumental in advancing the development and implementation of our technology, enhancing our capacity to create core backend functionalities, and empowering other teams to utilize this backend for their projects.If you have a passion for creating exceptional products, thrive in a fast-paced environment, and are eager to contribute to the success of an ambitious startup, this is the perfect opportunity for you.Our Tech Stack:Python / FastAPIPostgreSQL / MongoDB / ElasticCloud LLM providers + bare metal GPUsGCPAs an early team member, you will assume significant responsibilities from day one, with the chance to influence our technological architecture and infrastructure.Join one of the most ambitious AI companies today, collaborating with a world-class team of experts in their fields, and experience an incredibly stimulating work environment. In This Role You WillLead the delivery of complex projects, coordinating with cross-functional teams, and ensuring timely completion of essential components.Develop a deep understanding of Reliant's vision and integrate this into your architectural and process decisions in daily operations.Offer insights to refine UI/UX concepts and assist in the planning of backend and infrastructure development.Take proactive responsibility for long-term code quality and architecture. About YouThe ideal candidate will have a proven track record in backend or full-stack development, with a focus on rapid innovation and effective systems design that supports growth opportunities for both the product and the team.To thrive in this role, you should possess the following skills and experiences:5+ years of demonstrated experience in building backend services or distributed systems.Ability to design, develop, test, and maintain backend services and APIs that support product features, including writing robust, production-quality code.Engage in system and service design; contribute to architectural discussions and make informed trade-offs regarding scalability, latency, cost, and reliability.Navigate ambiguity effectively; translate vague or high-level requirements into actionable implementation plans.Collaborate with cross-functional partners including product management, frontend, UX, data, and operations to define requirements, plan implementations, and deliver features.Ensure high code quality by writing, reviewing, and improving unit/integration tests; actively participate in code reviews.

Why Choose voize? More Than Just a Job!At voize, we understand that the most precious resource for frontline workers is time—time to engage, connect, and focus on what truly matters: people. Unfortunately, this time is often consumed by tedious tasks and complicated systems.Our mission is to change this by developing AI companions that effectively manage digital workflows. We don’t aim to replace human jobs with technology; rather, we strive to enhance their contributions.Supported by Y Combinator and top-tier European VCs, voize is already implemented in over 1,000 senior care facilities and trusted by more than 75,000 users. Through our proprietary voize AI, we are revolutionizing the healthcare sector and adding value across various industries.As a forward-thinking team, we combine state-of-the-art technology with a mission for social impact. We invite you to be a part of this journey! Your Mission: Enhance User Experience and Optimize Processes!In the role of Head of Product, you will be instrumental in defining the trajectory of our product organization and driving company success. You will oversee the product roadmap, build and expand a high-performing product team, and lead the development of our multi-vertical platform. Acting as a liaison between our customers, engineering, and go-to-market teams, your leadership will ensure we create products that genuinely delight users while delivering measurable business outcomes through a balance of speed and quality. Your Daily Responsibilities - A Different Challenge Every Day!Lead and expand a customer-focused product organization from 6 to over 10 members within the next 12 months.Own and drive the execution of the product roadmap.Establish robust feedback loops with customers and cross-functional teams to guarantee swift iterations and value delivery.Design and implement scalable product processes, tools, and systems.Ensure that product quality enhances operational efficiency and customer satisfaction.Recruit, mentor, and cultivate vertical product teams to nurture the next generation of product leaders. Your Skillset - What You Bring to the TableDemonstrated experience leading a product team of over 10 members (both disciplinary and functional).Proven track record in scaling complex multi-vertical B2B products.

At Intercom, we revolutionize customer service with our cutting-edge AI technology. Our mission is to empower businesses to deliver exceptional customer experiences.Our AI agent, Fin, stands as the most sophisticated customer service AI on the market, enabling businesses to provide round-the-clock, flawless service. Fin integrates seamlessly with our Helpdesk, forming the comprehensive Intercom Customer Service Suite, designed to enhance support for complex inquiries that necessitate human intervention.Since our inception in 2011, we have gained the trust of nearly 30,000 businesses globally, establishing a new benchmark in customer service. Our core values drive us to innovate, operate with urgency, and consistently provide exceptional value to our clients.We are excited to build our presence in Berlin, a city known for its unique mix of top-tier technical talent and vibrant creative culture. This dynamic, globally connected metropolis is conveniently located near our R&D facilities in Dublin and London, making it an ideal hub for ambitious product development.This year, we aim to recruit 100 talented individuals in Berlin across various domains, including engineering, AI, data science, product management, and design. This is an extraordinary opportunity to join us as we lay the groundwork for our R&D efforts in the region and make a significant impact as we develop the leading customer service AI!What’s the opportunity?We are in search of Senior Product Engineers to become part of our AI Infrastructure team, dedicated to building AI-driven products at Intercom. As a Product Engineer in AI Infrastructure, you will collaborate closely with ML engineers and ML scientists to thoroughly understand our products and tech stack, and identify ways to expedite our development processes.The broader AI team is responsible for conceptualizing new ML features, exploring effective algorithms and technologies, and swiftly deploying prototypes for our customers.Our AI infrastructure is designed to adapt rapidly to new advancements in AI, ensuring that our engineers can deliver high-quality services promptly while maintaining the safety and reliability of our systems.We are passionate about leveraging machine learning technology, from classic supervised models to innovative unsupervised clustering algorithms, and pioneering new applications.

At praxipal, we are dedicated to revolutionizing healthcare administration with an innovative AI-powered workforce aimed at solving the global medical staffing crisis.Our medical assistants deserve to focus on patient care rather than being bogged down by administrative tasks such as managing calls, scheduling, sending repetitive messages, and handling invoicing. This is the vision behind our AI receptionist, Luna.Luna, our AI-driven solution, has successfully automated phone calls and has been embraced by over 100 medical practices. Currently, we are expanding her capabilities from handling calls to facilitating comprehensive patient communication across multiple channels. Our goal is to evolve Luna into a fully automated AI workforce that streamlines all administrative processes within medical practices, directly integrating with existing systems.With backing from one of Europe's foremost investors, we are proud to be among the fastest-growing health tech startups in Germany. Our talented team members have impressive backgrounds from leading organizations such as Palantir, Amazon, SAP, the University of Cambridge, and Hasso Plattner Institute.We are currently seeking an AI Automation Engineer to develop automation solutions and internal tools that enhance the efficiency and scalability of our go-to-market team.

At Intercom, we are revolutionizing customer service through the power of AI. Our mission is to enable businesses to deliver outstanding customer experiences, and we are seeking talented individuals to help us achieve this goal.Our flagship AI agent, Fin, stands out as the most sophisticated customer service AI available, ensuring businesses can offer seamless, around-the-clock support that enhances customer interactions. By integrating Fin with our Helpdesk, we create the Intercom Customer Service Suite, which provides AI-driven assistance for complex queries that necessitate human intervention.Since our inception in 2011, Intercom has grown to serve nearly 30,000 businesses worldwide, setting new benchmarks in customer service excellence. Guided by our core values, we constantly strive for innovation, speed, and delivering exceptional value to our clients.Berlin’s unique blend of technical expertise and vibrant creative culture makes it an ideal location for our expansion. We are excited to tap into the city’s talent pool while remaining connected to our R&D centers in Dublin and London. We aim to recruit 100 new team members in Berlin this year across engineering, AI, data science, product, and design, making this a pivotal moment to join us as we build the world’s leading customer agent.What’s the Opportunity?We are looking for Senior Product Engineers to join our AI Group and contribute to the development of our AI-powered products. As a Product Engineer in machine learning, you will collaborate closely with our ML Scientists and product teams, gaining an in-depth understanding of our products, customers, ML tech stack, and overall product offerings.Your responsibilities will include defining new ML features, exploring suitable algorithms and technologies, and swiftly delivering prototypes to our customers. Our highly focused team works in close partnership with Product and Design, allowing us to move quickly to production and often launch beta versions only weeks after successful testing.We are passionate about leveraging machine learning technology, having transformed various models—from classic supervised to innovative unsupervised clustering and advanced applications of transformer neural networks. We rigorously test and assess the tangible customer impact of each model we deploy.If you are an experienced product engineer eager to make a significant impact, we encourage you to apply!

About UsAt reliant-ai, we are dedicated to transforming decision-making in an age of overwhelming information. Our mission is to develop the next generation of machine learning software, leveraging generative AI to analyze critical data sources and deliver comprehensive, factual answers to complex inquiries.We believe that the true potential of generative AI can only be achieved by tackling the world's most significant information challenges. With over two decades of expertise in reinforcement learning and natural language processing, we are poised to make a substantial impact in this field.Our team consists of scientists, builders, and entrepreneurs who have pioneered some of the most influential AI applications. Having led teams at industry giants like Google, DeepMind, and EY Parthenon, we now connect cutting-edge AI research with the biopharma sector.

Join Us at ParloaAt Parloa, we aspire to be an iconic AI Platform company catering to Fortune 2000 enterprises. This is a unique opportunity to influence the future of enterprise AI. With our global enterprise clients, we are demonstrating the transformative power of our Agent Management Platform (AMP), which is evolving into the AI Agent Management layer for enterprise AI innovation.We are committed to constructing Europe’s premier engineering organization that sets the standard for engineering excellence.Our mission is straightforward: deliver robust, enterprise-grade, resilient, and reliable AI solutions swiftly. In a rapidly evolving market where multimillion-dollar sales cycles can be as brief as 1–2 months, speed is our competitive advantage. We are competing against major tech firms and agile AI-native startups, and now is the time to position Parloa as a global leader in Agentic AI Platforms.Our engineering team is developing a Composable Customer Experience Platform featuring Packaged Business Capabilities (PBCs), empowering clients to select between a turnkey solution or a composable toolkit that integrates seamlessly into their enterprise architecture.Our engineering organization, currently over 120 strong and rapidly expanding, is organized into Customer Experience Automation (CXA), Product Platform, and Technology Platform, collectively delivering a Composable Customer Experience Platform. Think of it like AWS's granularity, specifically designed to equip enterprises with speed, flexibility, and resilience.This is a once-in-a-decade chance to redefine how Agentic AI can revolutionize enterprises. To succeed, we need elite engineering leadership: bold, pragmatic, and dedicated to cultivating high-performing teams that achieve results swiftly and at scale.

Natuvion’s Berlin engineering group specializes in building and implementing AI solutions that reshape enterprise data. Drawing from real customer projects, the team transforms insights into software that delivers measurable results. Their work is rooted in the Natuvion Cloud Platform (NCP), with a separate cloud team ensuring scalability. Even when developing prototypes, the group maintains rigorous technical standards and disciplined processes. As part of a 500-person company and SAP Gold Partner, the team enjoys strong support while operating with the agility of a small, focused unit. Key Focus Areas Content Corpus: Organizing and structuring Natuvion’s transformation knowledge to make it searchable and accessible for AI agents. This includes building infrastructure to process and convert millions of lines of content into a valuable resource. Embedded Prototyping: Working directly with consultants on customer transformation projects to spot opportunities for AI, develop prototypes, and test them with real users. AI and Agentic Coding Practices: Leading the integration of AI into products and engineering workflows, and setting tools, methods, and standards that guide the company. Why Join as a Senior AI Consultant? Tackle substantial, real-world challenges in enterprise data transformation, involving millions of records and complex business logic. Solutions must meet actual customer needs. Take ownership of projects from start to finish, with the autonomy to decide what to build and how to deliver it. Use AI and agentic coding as core tools in daily work, not as side projects. Be part of a small, high-impact team with direct access to major clients such as BMW, Volkswagen, E.ON, and Lufthansa, enabling quick iteration and meaningful innovation. What You Will Do Lead the development of AI-driven prototypes tailored to customer needs, working hands-on within transformation projects. Collaborate with cross-functional teams to strengthen AI integration across processes and systems. Help define and shape standards and practices that drive Natuvion’s AI strategy across the company.

At Intercom, we are revolutionizing customer service with our innovative AI solutions, dedicated to helping businesses enhance their customer interactions.Our AI agent, Fin, stands as the most advanced customer service AI solution available, enabling businesses to offer unparalleled, round-the-clock support that significantly improves customer experiences. By integrating Fin with our Helpdesk, we deliver a comprehensive solution known as the Intercom Customer Service Suite, which is designed to handle complex inquiries that require a human touch.Established in 2011 and trusted by nearly 30,000 businesses worldwide, Intercom is committed to raising the bar for customer service. We are driven by our core values, which inspire us to push boundaries, innovate with urgency, and continuously provide exceptional value to our clients.What’s the Opportunity?We are seeking experienced Staff Product Engineers to join our AI Group, tasked with developing Intercom’s AI-driven products. In this role, you will collaborate closely with our ML Scientists and product teams to gain an in-depth understanding of our products, customers, and the machine learning technology stack we utilize.Our team is dedicated to defining new machine learning features, exploring suitable algorithms and technologies, and swiftly delivering initial prototypes to our customers.As a product-focused unit, we work in collaboration with the Product and Design teams to ensure we deliver the best possible AI-enhanced product experiences. Our engineers are instrumental in facilitating rapid production, often transitioning to beta releases within weeks following successful offline tests.We are passionate about leveraging machine learning technologies, and our projects range from classic supervised models to cutting-edge unsupervised clustering algorithms, and innovative applications of transformer neural networks. We rigorously test and measure the genuine impact of each model we deploy on our customers.If you are an accomplished product engineer with a strong analytical mindset and hands-on experience with machine learning systems, we would love to connect with you!

Role Overview airapps is looking for an AI Product Manager in the Berlin Metropolitan Area. This position focuses on building new AI-driven products that reach users worldwide. The AI Product Manager works closely with teams across the company to shape features based on market needs and manages products from initial idea through to launch. What You Will Do Work with cross-functional teams to define and deliver AI-powered solutions Translate user and market requirements into clear product features Oversee the full product lifecycle, from concept through release

Upvest is looking for an AI Enablement Specialist (f/m/d) based in Berlin. This position focuses on applying artificial intelligence expertise across the company, with a goal of improving both our products and the way users interact with them. The role involves working alongside colleagues from various departments to move AI initiatives forward. What you will do Collaborate with cross-functional teams to implement AI-driven strategies Contribute to the design and refinement of product features using AI Develop solutions aimed at enhancing user experience and delivering value to clients Requirements Solid understanding of AI technologies, especially as they apply to finance Keen interest in artificial intelligence and its real-world uses Strong collaboration and communication skills with teams from diverse backgrounds

Join scalablegmbh as a Product Manager for our cutting-edge AI Platform. In this pivotal role, you will lead product strategy, collaborate with cross-functional teams, and drive the development of innovative AI solutions. Your expertise will help shape our product roadmap and ensure we remain at the forefront of AI technology.

At Intercom, we are revolutionizing customer service through AI technology, dedicated to helping businesses create outstanding customer experiences.Our AI agent, Fin, stands as the most sophisticated customer service AI on the market, enabling businesses to offer continuous, exceptional customer support and fundamentally enhance their customer interactions. Fin can also integrate with our Helpdesk to form a comprehensive solution, known as the Intercom Customer Service Suite, designed to address complex inquiries that require human intervention.Founded in 2011 and trusted by nearly 30,000 businesses worldwide, Intercom is redefining customer service standards. Our team is driven by core values that encourage pushing boundaries, rapid innovation, and consistently delivering exceptional value to our clients.Berlin captivates us with its unique blend of deep technical talent and rich creative culture, all within a lively, globally connected city that is conveniently located near our R&D centers in Dublin and London. It is an environment where top technical talent flourishes, attracting individuals from across the globe eager to relocate and contribute to ambitious projects.As part of our growth, we aim to recruit 100 professionals in Berlin over the next year across various domains, including engineering, AI, data science, product management, and design. This is an exciting opportunity to join us as we build the premier customer agent in the world!What’s the opportunity?We are launching a new function within Intercom: AI Product Management. For over a decade, we have invested in building in-house AI capabilities with a dedicated team of machine learning scientists, engineers, researchers, and AI designers. We are now expanding this team by bringing on product managers to help shape the future of our AI platform and agent.As a Senior AI Product Manager, you will define the vision, strategy, and roadmap for the core AI systems that drive Fin and our AI features. You will operate at the crossroads of advanced AI research, innovative product development, and real-world customer challenges, aiding us in creating world-class AI products that yield significant business outcomes.This role demands a high level of ownership from a technically proficient, customer-centric product manager who thrives in fast-paced, ambiguous settings and enjoys transforming complex AI functionalities into simple, enjoyable product experiences.