Business Development Lead - Media Buyers (m/f/d)

Marketing Lead (m/f/d)

Kayzen

Berlin,London,New York, EMEA Remote ________________________ Hello👋I am Tim, CEO and Co-Founder at Kayzen, and I am now looking for a Marketing Lead to join our team 🙌 In this role, you will be leading all aspects of marketing at Kayzen, sharpening our positioning as a leading, performance-focused DSP for CTV and mobile app advertising. But wait, you have not heard of Kayzen before? 😃  Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through our self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 300B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface. The Team You will be part of the GTM (Go To Market) group, working with a carefully selected, diverse and globally distributed team spanning customer success, sales & business development, product and more functions. We are highly motivated and aligned in our quest to disrupt the multi-billion dollar mobile and CTV ad-tech industry.  The Role Your role requires a deep understanding of the advertising technology industry with its various actors, such as advertisers, agencies, ad platforms (DSPs, SSPs, Measurement, etc). Kayzen offers a leading technology platform used by a diverse set of customers (multiple ICPs: Apps, Agencies, Media Buyers) who aim to get performance outcomes from ad campaigns running on CTV and mobile apps. The unifying element of our customers is that they choose Kayzen for our ability to deliver measurable results while giving them full transparency and control. Whether the outcomes they look for are app installs, new customers, purchases and repeat purchases or upper funnel goals like engagement and brand lift. The main geographic market focus is on Europe and the US. The Kayzen team members, customers, partners and vendors you will interact with are primarily based in Europe and the US. You will be responsible for taking over and growing a lean and highly effective team covering all aspects of our marketing: demand generation, growth, product marketing, content, CRM, sales enablement, partnerships and events. You will be reporting to Tim (CEO) or another executive leader. Responsibilities * Work closely with the C-Suite to develop and execute GTM strategies for growing our business with our target ICPs * Translate Kayzen's vision and positioning into a strong narrative that creates a unique positioning and speaks to our future customers' needs & wants * Own the brand voice end-to-end. Define positioning, messaging, and narrative frameworks that turn product features into stories customers actually remember and repeat * Build and maintain strong relationships with industry contacts such as partners, select key customers and suppliers, and multipliers who can help us amplify our message * Predictably and systematically grow our inbound leads and MQL (Marketing Qualified Leads), using effective demand generation approaches (for example, through growing the user base our free kAI Explorer AI Agent) * Deeply empathise with existing and prospective clients to understand their needs and perspectives, analyze and understand industry trends and translate that into building best-in-class messaging and positioning for Kayzen * Ownership and effective use of our suite of marketing tools and systems, such as Hubspot, Wordpress, Claude AI, Fin. * Build a lean but high performing team of marketing specialists focused on driving measurable revenue growth Requirements * Minimum of 5 years of experience in the mobile or CTV advertising technology field * Demonstrated track record of growing a scale-up with strong marketing execution in a previous role is a big plus * Excellent command of the English language, both in writing and speaking * Strong prioritization skills with ability to multitask and adapt to changing priorities * A genuine Passion for the advertising technology sector * A preference for working in a fast-paced, dynamic, and international environment and experience working with (hybrid) remote teams * Strong collaboration skills aligning vision and execution roadmap cross-functionally with other leaders (peers) in the organization * Previous experience with public speaking on industry events is a plus  * Previous experience building a community led demand generation engine is a plus * Demonstrated ability to leverage AI tools as a productivity accelerator for day to day work and a strong motivation to continue building your AI-first execution toolset  What do we offer? * Direct access to top management and an extremely “visible” role * Exceptional career growth and learning opportunity * A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market * A fun, driven, and multinational team located across Germany, India, UK, Argentina, Ukraine, Spain  and many more countries * A flexible work-from-home arrangement * A 500-dollar home-office setup budget * A 1000-dollar annual learning and development budget

Unsolicited Application- All Departments

DeepSpin

YOUR MISSION Even though there is currently no specific vacancy, we are always looking for talents who can drive our vision forward with drive, creativity, and team spirit. Whether in R&D, product, sales, or operations – create innovation with us that make a real difference. YOUR PROFILE - You are a self-starter and like to take on responsibility - You find unconventional solutions to complex problems - Teamwork and open communication are essential for you - You are passionate about healthtech or deep tech and want to make a difference - You have an interdisciplinary background and bring fresh perspectives WHY US? - Work in an international, mission-driven startup - Market Competitive compensation - Flat hierarchies and short decision-making processes - Modern office in the heart of Berlin

LLM Platform Engineer/Lead (m/f/d)

Kayzen

Remote from EMEA or Bangalore Hello 👋 I am Servesh, Co- founder and CTO at Kayzen, and I am now looking for a LLM Platform Engineer/Lead who will be part of our Engineering team. 🙌 But wait, you have not heard of Kayzen before? 😃 Kayzen is a mobile demand-side platform (DSP) dedicated to democratizing programmatic advertising. We enable leading apps, agencies, media buyers, and brands to run programmatic customer acquisition, retargeting, and brand performance campaigns through its self-serve and managed service options. Built on the three core pillars of performance, transparency, and control, Kayzen powers the world’s best mobile marketing teams with bespoke solutions that fuel business growth and deliver a competitive advantage. With an unprecedented scale of 160B+ daily ad requests from 1.6B+ unique users worldwide, we serve up to 1B+ ads per day in 180 countries. Kayzen is accessible through our APIs and user interface. The Team The Platform Engineering team owns Real-time bidding (RTB) platform, a Real-time budget system, Real-time event processing, Stream data processing engine and multiple other complex large-scale distributed components and data pipelines. We work closely with data scientists, data analysts, product and business teams. We are responsible for some of the most technically challenging work, for example: * Handling ~2 Million Req/sec in sub-millisecond latency * Handing & managing ~Petabytes of data * Managing distributed systems deployed across multiple data centers * Optimizing JVM and Linux kernel for optimal performance * Managing our own data center spread across the globe consisting of thousand of powerful servers * Working on some of the most challenging problems of Ad-Tech Sounds interesting. Isn't it? About the Role We are looking for an LLM Platform Engineer  /Lead who can evangelise AI across the company and build the foundational tooling, frameworks, and workflows  that allow teams to ship AI-powered features quickly and safely. This role is ideal for an experienced engineer who understands modern AI capabilities and focuses on developer velocity, reuse, and production readiness  rather than training complex models from scratch. Responsibilities * Design and build  internal AI frameworks, SDKs, and shared libraries  * Enable teams to integrate AI features with minimal friction * Set up  standardized patterns  for using LLMs, embeddings, agents, and workflows * Build reusable components for  prompt management, evaluation, observability, and safety  * Define best practices for  AI usage, cost control, and reliability  * Evangelise AI internally through documentation, examples, and hands-on guidance * Rapidly prototype AI-powered features and turn them into reusable building blocks * Own AI tooling from experimentation to production Requirements AI Tooling & Framework Experience (Core Focus)  * Hands-on experience with LLM APIs  (OpenAI, Anthropic, etc.) * Experience with RAG pipelines, embeddings, vector databases  * Familiarity with prompt engineering, prompt versioning, and evaluation  * Experience with AI orchestration frameworks  * Good understanding of AI observability, cost monitoring, and failure modes * You’ve shipped at least one LLM-powered feature to production and iterated based on telemetry or user feedback. * Comfortable with embeddings, fine-tuning, vector search, tokenisation, and evaluation methodologies. * Familiar with data lakes/warehouses, feature stores, and streaming/batch ETL; cloud (AWS/GCP/Azure). Strong Engineering & Platform Skills  * Excellent Python skills (required) * Experience building frameworks, platforms, or developer tooling  * Strong understanding of  APIs, services, and system design  * Writes clean, maintainable, production-grade code Startup Mindset * Bias for shipping and iteration * Can translate AI complexity into simple abstractions * Comfortable with ambiguity and rapid change * Thinks in terms of  leverage and reuse , not one-off solutions Less About * Heavy model training or research * Designing custom ML algorithms * Academic optimisation work Nice to have * Experience with  agent-based systems  and tool calling * Experience setting up  guardrails, moderation, and safety checks  * Familiarity with  Docker, cloud infra, and CI/CD  * Prior work in  platform teams or enablement roles What do we offer? * Reporting directly to Co-founder & CTO * Direct access to top management and an extremely “visible” role * Exceptional career growth and learning opportunity * A unique opportunity to be part of an experienced team of industry experts and entrepreneurs who bring massive change to the Adtech market * A fun, driven, and multinational team located across Germany, India, UK, Argentina, Ukraine, Turkey, Spain  and many more countries * A flexible work-from-home arrangement * A 500-dollar home-office setup budget * A 1000-dollar annual learning and development budget