Senior AI Engineer - Harness Engineering (Kimchi)

Join our dynamic team as a Senior AI Engineer at Castaigroup Inc. in the Harness Engineering division. We are looking for an innovative and skilled engineer to drive the development of cutting-edge AI solutions. You will play a crucial role in designing, implementing, and optimizing AI algorithms and systems that impact our wide range of clients across Europ…

About HuzzleAt Huzzle, we specialize in connecting top-tier B2B sales talent with innovative companies across various regions, including the UK, US, Canada, Europe, and Australia. Our esteemed clientele spans startups, digital agencies, and tech platforms in sectors such as SaaS, MarTech, FinTech, and EdTech. We take pride in matching exceptional sales professionals with remote positions, ensuring they are incorporated directly into client teams while receiving ongoing support from Huzzle.About the CompanyOur client is an AI-driven Go-To-Market (GTM) systems organization founded by seasoned revenue professionals. They focus on constructing comprehensive automated revenue engines that convert market signals into a qualified pipeline through AI agents, workflow automation, and scalable data infrastructure.Their technology stack integrates workflow automation platforms, enrichment systems, CRM integrations, and tailored AI agent orchestration layers—catering to fast-growing companies scaling from $1M to $100M+ in Annual Recurring Revenue (ARR).Job SummaryWe are seeking a GTM Engineer to design, implement, and enhance high-impact outbound campaigns for our SaaS clients.This role is highly hands-on and execution-oriented, perfect for individuals who thrive in a dynamic startup setting, enjoy experimenting with advanced tools, and want to make a direct contribution to pipeline generation.You will collaborate closely with leadership and clients to transform buying signals into scalable outbound systems that yield measurable revenue results.Key ResponsibilitiesDesign and execute outbound campaigns utilizing Clay, SmartLead, HeyReach, and various automation tools.Leverage Claude (AI) to create, test, and optimize outbound messaging at scale.Convert real-time buying signals into precisely targeted prospecting workflows.Develop automated GTM systems employing tools like n8n and APIs.Continuously test, iterate, and optimize outreach sequences for higher conversion rates.Enhance campaign speed, efficiency, and scalability.Monitor performance through CRM attribution and optimize for pipeline outcomes.Key Performance Indicators: Number of campaigns launched per day, week, and month. Time-to-launch for new campaigns (speed and efficiency). Campaign performance and contribution to the sales pipeline.RequirementsMust-Haves:In-depth expertise in Clay (mandatory)Proficient in using Claude for outbound messaging, personalization, and workflow automation (mandatory)Demonstrated experience in GTM Engineering, Growth Engineering, or outbound infrastructure roles.Strong familiarity with automation tools and CRM systems.

About Cast AI Cast AI builds an automation platform that combines artificial intelligence with Kubernetes infrastructure. The goal: improve performance, reliability, and efficiency in production environments by embedding autonomous decision-making into cloud systems. Manual management of Kubernetes and AI environments becomes less effective at scale. Cast AI addresses this by providing continuous automation that adapts infrastructure as conditions change. This approach helps reduce manual work, cuts costs, and boosts operational efficiency. More than 2,100 companies rely on Cast AI, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS. Global Team and Culture Headquartered in Miami, Cast AI operates across 34 countries, including Europe, North America, Latin America, and APAC. The team values diverse perspectives and intentionally builds a global workforce. Recent Milestone In January 2026, Cast AI reached unicorn status after a strategic investment from Pacific Alliance Ventures, part of the Shinsegae Group (a conglomerate valued at over $50 billion). The company’s valuation now exceeds $1 billion. Location Requirements This Senior Software Engineer - Infrastructure role is open to residents of Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, and Ukraine.

Join CyberArk, a leading provider of identity security solutions, as a Staff Software Engineer specializing in Secure AI agents. In this pivotal role, you will leverage your expertise to develop cutting-edge AI-driven security solutions that safeguard enterprises against emerging threats. You will work collaboratively within an innovative team, contributing to the design and implementation of secure software applications that enhance our product offerings.

Why Join Valtech?At Valtech, we are a leading experience innovation company, recognized globally as a trusted partner to some of the most renowned brands. We prioritize our employees' growth and offer a values-driven culture, international career opportunities, and the chance to shape the future of digital experiences.The OpportunityAs a Senior Python Engineer at Valtech, you will engage in a collaborative environment focused on continuous learning and impactful work. Your contributions will be pivotal in pioneering innovative digital solutions, challenging the status quo, and creating the next generation of customer experiences that will redefine industries.

About UsAt Redis, we are pioneers in creating the infrastructure that powers some of the world's fastest applications. Whether you're checking the weather, making a payment, or tracking your flight status online, our technology plays a crucial role. Join us in building a faster world with simpler, more efficient experiences.Our core mission is to accelerate the transition to AI-native systems globally. We are committed to delivering high-performance services that enhance developer and agent workflows, making them faster, more efficient, and easier to scale.As a Senior Engineer on our AI Services team, you will design and implement impactful memory and context capabilities for next-generation chatbots and AI agents. You will take ownership of architecture, implementation, and production deployment while ensuring high standards for quality, performance, and operability. Additionally, you will mentor emerging talent through code reviews and technical guidance, and collaborate closely with the AI Research team to align on roadmap and technical direction.This position offers a fantastic opportunity to spearhead innovation and expand the capabilities of the Redis platform in the burgeoning Agentic AI era.

Join our dynamic team at CyberArk as a Manager of Engineering specializing in Secure AI Agents. In this pivotal role, you will lead a talented group of engineers to develop innovative AI-driven solutions that bolster cybersecurity. Your leadership will guide the engineering team in designing, implementing, and maintaining cutting-edge AI agents that enhance our security offerings.As a key player in our organization, you will collaborate closely with cross-functional teams to ensure the successful integration of AI technologies across our platforms. Your strategic vision and technical expertise will be essential in driving projects from conception to launch, ensuring that our AI agents meet the highest standards of security and functionality.

About UsAt Redis, we engineer the technology that powers the fast applications that shape the modern world. If you've checked the weather, processed a payment, or tracked your flight online today, our technology has likely played a role. Join us in crafting a simpler and faster world with innovative solutions for over 10,000 global customers.Why You’ll Love Working HereWe are on a mission to accelerate the transition to AI-native systems. Our focus is on providing high-performance, developer-friendly services that enhance the speed and simplicity Redis is renowned for, making AI workflows more efficient and scalable.As a vital member of the Redis AI Services team, you'll play a crucial role in developing advanced memory and context functionalities essential for chatbots and AI agents. This is an incredible opportunity to drive innovation and enhance the Redis platform to meet the evolving demands of the AI era.Your ResponsibilitiesDesign and implement AI-driven features, prioritizing scalability, reliability, and performance.Foster innovation by exploring cutting-edge AI technologies and frameworks, contributing to Redis’ advancements in the AI domain.Collaborate closely with cross-functional teams, including engineering, support, and DevOps, to lead the development of the fastest NoSQL databases globally.

About UsWelcome to Redis! We are the driving force behind the high-performance applications that power everyday experiences. Whether you're checking the weather, making online purchases, or tracking flight statuses, our technology is at work. At Redis, you will engage with cutting-edge technology that’s both fast and easy to use, as we strive to create a simpler and faster world for our over 10,000 clients globally. Are you ready to make an impact?Your RoleAs a Software Engineering Team Lead for Redis AI Services, you will take on a pivotal leadership role, guiding a team of skilled engineers to develop highly scalable, reliable, and production-ready services. Your leadership will be instrumental in promoting software excellence and engineering best practices, as you harness your expertise to enhance Redis’ functionalities—especially in memory and context capabilities for chatbots and agents, as part of our expanding AI Services suite. This role requires a blend of software engineering leadership, strategic decision-making, and execution of impactful product initiatives.Key ResponsibilitiesLead and Develop a High-Performing Engineering Team. Mentor team members to produce top-tier software quickly, underpinned by strong engineering principles, pragmatic design, and flexible testing methodologies.Facilitate Agile Execution and Decision-Making. Cultivate a culture of rapid iterations and data-driven decisions to effectively balance immediate product delivery needs with long-term strategic goals.Enhance the AI Services Platform. Collaborate with diverse teams, including AI research, product management, and cloud infrastructure, to advance Redis’ AI solutions into robust, customer-ready offerings.Operational Leadership. Establish and track SLAs, SLOs, and KPIs. Build strong observability, incident management, and release processes to ensure high service uptime and performance.Recruit and Cultivate Talent. Attract top engineering talent and nurture a culture of technical curiosity, operational excellence, and continuous improvement.What We’re Looking For6+ years of experience as a software engineer specializing in backend, cloud, or distributed systems, with a minimum of 2 years in a technical leadership role.Demonstrated success in leading product-focused engineering teams to deliver high-quality outcomes.

Join CyberArk as a Senior Software Engineer specializing in Secure AI Agents, where you will play a crucial role in developing innovative solutions that enhance security protocols. You will collaborate with a talented team of engineers and work on cutting-edge technology aimed at protecting critical business infrastructures.

About UsAt Redis, we are the creators of the fastest applications that power the digital world. Whether you’ve checked the weather, made a purchase, or tracked your flight status today, our technology is behind it. Join us in transforming the future with rapid and seamless experiences. Are you ready to be part of this journey?Why You Will Love Working HereAs the Software Engineering Team Lead within our AI and Search department, you will play a pivotal role in guiding the direction of Redis' AI and Search innovations. Lead a passionate team that drives Redis' Search capabilities, including real-time full-text search, vector similarity, and cutting-edge retrieval mechanisms.This role is integral to our next-generation data platform, where performance, scalability, and creativity converge.Your ResponsibilitiesLead a high-performing engineering team while engaging hands-on in the design and implementation processes.Provide technical guidance in systems-level development using C, C++, and Rust.Enhance Redis’ AI and Search functionalities, focusing on vector search, hybrid retrieval, and semantic caching.Design, oversee, and continuously improve CI/CD workflows to ensure rapid and quality releases.Manage incident responses and customer interactions for production issues, ensuring quick resolutions and implementing process improvements.Collaborate effectively with Core, Cloud, Product, and Support teams.Establish engineering standards focused on performance, reliability, testing, and operational excellence.Recruit, mentor, and nurture engineers, promoting a culture of ownership and ongoing development.

Jobgether is looking for a Senior Software Engineer in Bulgaria to help build AI-powered SaaS products. This role centers on designing, implementing, and maintaining software applications that use artificial intelligence to improve user experiences and support business goals. Role overview This position involves close collaboration with teams across the company. The Senior Software Engineer will work with others to define project requirements, create technical specifications, and deliver reliable, high-quality code. What you will do Design and develop software applications that incorporate AI features Maintain and enhance existing systems to meet evolving needs Work with cross-functional groups to gather requirements and clarify technical details Contribute technical expertise to expand the company’s portfolio of AI-driven products Requirements Experience as a software engineer, with a focus on designing and building applications Ability to collaborate with diverse teams and translate requirements into technical solutions Strong commitment to delivering high-quality, maintainable code

About UsAt Redis, we are the architects of the technology powering the fast applications that drive our modern world. Whether you checked the weather, made a purchase, or tracked your flight online today, our solutions are behind those seamless experiences. Join us at Redis to work with cutting-edge technology, whether you're developing, marketing, or selling to our extensive global customer base of over 10,000.Why You’ll Love This RoleThis is an exciting opportunity to be at the forefront of enhancing Redis’s search and vector capabilities for the AI-driven future. As part of the Redis Search/Vector team, you will engage with real-world production systems that provide semantic, vector, and hybrid search functionalities to millions of developers around the globe.You will collaborate with seasoned engineers and technical leads, contributing to features from inception to production, while expanding your knowledge in high-performance search, vector retrieval, and latency-sensitive systems.Your Responsibilities:Develop and optimize core vector and information-retrieval components (such as HNSW, quantization, filtering, and re-ranking) under expert guidance.Enhance performance-critical pathways, focusing on reducing latency, maximizing throughput, and improving resource efficiency.Aid in addressing real-world challenges at scale, with an emphasis on correctness, reliability, and maintainability.Engage in design discussions and code reviews within the Search/Vector team.Work alongside Redis Core, Cloud, and Support teams on feature development and troubleshooting.Learn and implement systems-level optimizations (such as memory layout, concurrency, SIMD) with mentorship.What You’ll Need:Demonstrated production experience (typically 3–5+ years) in backend, systems, or infrastructure software development.Experience in either search/IR/vector systems or systems programming (storage, performance-critical services).Proficient in C/C++ or Rust, with a strong background in writing concurrent and efficient code.Excellent problem-solving abilities and the capacity to decompose tasks and designs with assistance.Bachelor’s degree in Computer Science or equivalent practical experience.Bonus Points For:Experience with distributed systems, cloud computing, or other related technologies.

About Cast AI Cast AI builds an automation platform focused on streamlining cloud-native and AI infrastructure at scale. The platform integrates autonomous decision-making into Kubernetes and cloud environments, aiming to optimize performance, reliability, and efficiency in production. Over 2,100 companies, including Akamai, BMW, Cisco, FICO, HuggingFace, NielsenIQ, Swisscom, and TGS, use Cast AI to automate away manual tickets, alerts, and adjustments, replacing them with systems that adapt infrastructure dynamically. This shift helps organizations improve efficiency and reduce costs. Our Team and Culture Headquartered in Miami, Cast AI operates in 34 countries across Europe, North America, Latin America, and APAC. The company values diversity and inclusion, drawing on a wide range of perspectives to inform its work. In January 2026, Cast AI reached unicorn status following a strategic investment from Pacific Alliance Ventures, part of the Shinsegae Group. The company’s valuation now exceeds $1 billion. Location This Senior Software Engineer role is open to candidates based in Bulgaria, Croatia, Estonia, Greece, Hungary, Latvia, Lithuania, Poland, Romania, Slovakia, Slovenia, or Ukraine. Role Overview Senior Software Engineers at Cast AI contribute to core product features across several teams. Openings are available in the following areas: Workload Optimization: Automate resource management by dynamically adjusting allocations to lower costs and improve application reliability. Karpenter: Enhance integration between Karpenter and Cast AI, adding enterprise features to the open-source Kubernetes autoscaler and supporting large-scale deployments. Reporting: Build scalable solutions for data reporting and analysis, improving user experience and insights. Join Cast AI to help shape the future of autonomous infrastructure.

Tietoevry is looking for a Senior DevOps & AI Automation Engineer to join the team in Sofia. This position focuses on improving automation and refining DevOps workflows by applying advanced AI tools and methods. Role overview Collaboration is central to this role. The engineer will work with colleagues from different disciplines to strengthen automation and drive improvements in technology operations. Emphasis is placed on integrating AI into existing DevOps processes to increase efficiency and reliability. Key responsibilities Work with cross-functional teams to identify and address automation opportunities Enhance and optimize DevOps practices using AI-driven approaches Support the adoption of new technologies that improve operational workflows Location This position is based in Sofia.

About UsWelcome to Redis! We are the creators of the technology that powers the fast applications that drive our modern world. Whether you checked the weather, made a purchase online, or tracked your flight today, our contributions are at work. At Redis, you will engage with cutting-edge technology that is reshaping the digital landscape, enhancing experiences for over 10,000 customers globally. Join us in our mission to create a faster, simpler world.This is a distinctive chance to influence Redis capabilities as we transition into the era of Artificial Intelligence.You will be part of the core Redis Search/Vector team, tackling some of AI’s most pressing challenges, including advanced indexing, vector and hybrid retrieval, and latency-sensitive solutions on a global scale. Your work will directly impact millions of developers by transitioning features from research to production, optimizing latency and recall while managing costs effectively.

Why Join Our Team?Fully Remote Work: Enjoy the flexibility of working from anywhere.Global Team: Collaborate with a diverse, international team.Innovative Technology: Work on cutting-edge solutions in the Insurtech sector.Company OverviewAt CoverGo, we are on a mission to revolutionize the insurance industry by making it entirely digital and accessible to all. As a forefront player in the no-code insurance platform market for health, life, and P&C, we have garnered multiple accolades, including the prestigious Insurtech of the Year award across Asia.We serve a wide array of insurance enterprise clients, including AXA, Bupa, MSIG, and more.Our vibrant team consists of over 120 professionals from 30 different nationalities, all working remotely.Backed by respected VC firms and strategic investors, we are fully funded and continue to expand globally across Asia, EMEA, and the Americas.Since January 2021, we've remarkably increased our annual revenue by over 30 times.We prioritize creating a welcoming workplace that values diverse thoughts, expressions, and perspectives.Role OverviewAs the Lead Full Stack Engineer, you will be pivotal in shaping and executing the technical vision for our enterprise-grade insurance platform. You will not only engage in hands-on full-stack development but also lead a talented team of engineers, mentor peers, and advocate for the integration of AI capabilities to enhance our technology.Your responsibilities will include guiding architectural decisions, establishing development standards, and fostering a culture of innovation that emphasizes scalable software design and continuous delivery. Your leadership will ensure that our technology initiatives align with business objectives, delivering intelligent and impactful solutions.Key ResponsibilitiesOversee the entire development lifecycle of our SaaS platform, from conception to deployment, ensuring alignment with business and technical goals.Provide technical guidance and mentorship to a team of Full Stack Engineers, promoting their professional development.Define and implement the technical strategy for AI integration, collaborating with product and data teams to deliver AI-enhanced features that streamline automation and elevate user experience.Research and evaluate new AI models and frameworks (e.g., OpenAI, Hugging Face, Google AI), leading the development of proof-of-concepts (POCs) to explore innovative solutions.

Join our dynamic team at SiteGround as an AI Python Web Developer! In this exciting role, you will be at the forefront of developing cutting-edge AI products that redefine user experience. We are looking for a passionate developer who thrives in a collaborative environment and is eager to push the boundaries of technology.Your responsibilities will include designing, developing, and optimizing web applications that utilize artificial intelligence algorithms. You will work closely with cross-functional teams to implement innovative solutions that enhance our product offerings.

The future of artificial intelligence, whether in training or evaluation, classical machine learning, or agentic workflows, relies on high-quality data.At HumanSignal, we are creating a powerful platform that facilitates the generation, curation, and assessment of data. Our tools play a vital role in fine-tuning foundational models and validating agent behaviors in real-world applications, utilized by top AI teams to guarantee that models are grounded in authentic signals rather than noise.Our open-source product, Label Studio, has established itself as the standard for data labeling and evaluation across various modalities—ranging from text and images to time series and agents in environments. With over 250,000 users and hundreds of millions of labeled samples, it stands as the most widely adopted open-source solution for teams dedicated to developing AI systems.Label Studio Enterprise enhances this foundation with advanced security, collaboration, and scalability features, essential for supporting mission-critical AI pipelines. From model training datasets to evaluation test sets and continuous feedback loops, we are committed to innovation in the AI landscape. If you are eager to assist leading AI teams in building smarter and more accurate systems, we would love to connect with you.(BULGARIA BASED) AI Data Collector — Turn the World Into Your Workplace!Do you enjoy scavenger hunts? Love exploring your surroundings? Want to earn a competitive salary while engaging in something fun, flexible, and impactful?We are seeking curious and detail-oriented individuals to join our team as AI Data Collectors. In this position, the world will be your office. You will play a crucial role in shaping the future of AI by capturing high-quality data that will be utilized for various AI projects.

Jobgether is looking for an AI LoRA Character Creator to join its team in Bulgaria. This position centers on using advanced artificial intelligence methods to develop distinctive character profiles for gaming and digital platforms. Role overview The AI LoRA Character Creator will combine creative skills with technical knowledge to design characters that stand out and engage users. The focus is on blending AI-driven processes with artistic vision to bring new personalities to digital experiences. What you will do Develop original character profiles using AI LoRA techniques Contribute to projects that aim to enhance user engagement in gaming and digital products Collaborate with team members to refine and improve character designs Who we’re looking for Creative thinker with a strong interest in artificial intelligence and character design Comfortable working with advanced AI tools and concepts Keen to explore new approaches that combine technology and creativity