Senior Python Engineer with AI Expertise

About Our Client:Join a pioneering SaaS company that specializes in innovative solutions for risk detection and management in clinical trials. Using a sophisticated set of algorithms, our client analyzes clinical and operational data in real-time to uncover anomalies and outliers effectively. Role Overview:As a key member of our rapidly expanding engineering…

TENTENS Tech is a dynamic IT partner of SKELAR, a Ukrainian venture builder dedicated to creating international tech businesses.We specialize in developing social discovery platforms for over 20 million users globally. Our momentum and scale are driven by deep expertise in analytics, high-load systems, and performance marketing.Currently, our team at TENTENS Tech consists of more than 250 talented individuals, each operating as a CEO in their role and contributing to the collective success. We embrace a 10/10ths work style: focusing on our goals, asking the right questions along the way, and never settling for 'good'—always striving for excellence and beyond. If this resonates with you and you're ready to accelerate with us, let's connect!We are seeking a Senior/Lead Data Engineer to spearhead the development of a high-load Data Platform that processes over 2500 data streams and up to 9 PB of data monthly.In this role, you will be the technical driving force of the direction and will build a platform that provides teams with scalable, reliable, and user-friendly access to data.

Join our dynamic team at Auto1 as a Team Lead Java Engineer in our Remarketing department. In this role, you will lead a talented group of engineers, driving innovation and excellence in our technology solutions. You will be responsible for overseeing the development and implementation of robust Java applications that enhance our remarketing strategies. Your leadership will be crucial in mentoring team members, improving coding standards, and ensuring high-quality deliverables.

We are seeking a talented and experienced Team Lead Java Engineer to join our dynamic team at auto1 in the vibrant city of Kyiv. In this role, you will lead a dedicated team of developers, driving innovation and excellence in our retail technology solutions.The ideal candidate will possess a strong background in Java programming, a passion for leading teams, and a commitment to delivering high-quality software solutions. You will collaborate closely with cross-functional teams to define project requirements and ensure timely delivery.

Location: Fully remote (EMEA timezone)Start date: ASAPLanguages: Fluent English requiredIndustry: Cloud Computing / AI / European Deep-Tech SaaSAbout the RoleAt Pragmatike, we are in search of a Senior / Lead iOS Engineer with a staff-level mindset to join a pioneering European deep-tech company that is transforming the cloud landscape. This innovative company is developing a decentralized, energy-efficient alternative to traditional cloud providers, leveraging distributed bare-metal infrastructure and advanced automation to deliver sovereign, high-performance computing solutions for modern workloads.In this vital role, you will be instrumental in designing and evolving our iOS applications that seamlessly integrate with our next-generation decentralized cloud platform. You will collaborate closely with backend, infrastructure, and product teams to create secure, high-performance, and user-friendly mobile experiences. Your ability to work autonomously, take ownership, and exercise sound architectural judgment will be crucial to your success.

Join Quantum Systems as an AI Computer Vision Engineer in Kyiv, where you'll be part of a dynamic team pushing the boundaries of aerial data technology. This full-time position is office-based, and we provide a convenient shuttle service from the nearest metro station.Your Daily Responsibilities:Design, develop, and enhance real-time object detection and tracking models tailored for aerial video captured by UAVs equipped with EO/IR cameras.Implement optimized inference pipelines for edge hardware platforms such as NVIDIA Jetson and Orin.Conduct model training, testing, benchmarking, and validation in authentic flight conditions.Integrate advanced AI models into onboard systems to improve functionality.Collaborate with software and hardware teams to ensure seamless end-to-end system performance.Research and apply leading-edge deep learning techniques within the field of computer vision.

Join Ajax Systems, a leading international technology company and Europe's foremost manufacturer of security systems. We are seeking a Senior Hardware Engineer to drive innovation in our diverse portfolio of over 280 devices, providing comprehensive solutions for residential and commercial protection. Our products are trusted by over 4.5 million end-users and 330,000 PRO users across more than 180 countries, showcasing our commitment to excellence and continuous growth. Be part of a dynamic team that is shaping the future of security technology with rapid expansion in both team size and global user base.

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.

Flosum builds a Salesforce-native DevOps and data protection platform for enterprise Salesforce teams, including many in the Fortune 5000. In a market where pipeline growth, customer retention, and product speed matter more than ever, Flosum is hiring its first AI Go-to-Market Engineer. This remote role (based in Ukraine) will shape, launch, and refine AI systems and automation across every stage of the revenue process, from first outreach to closing deals and growing accounts. Role Overview This position goes well beyond prompt engineering. The focus is on building and maintaining real AI systems that drive measurable business results. The AI Go-to-Market Engineer will work closely with revenue operations, sales, marketing, and customer success teams. The goal: multiply the productivity of Flosum’s Go-to-Market organization by deploying AI that accelerates deal flow, increases revenue, and reduces churn. This role reports directly to the CEO. What You Will Do Deploy and train at least one AI Sales Development Representative (SDR) agent within the first month. This agent may focus on inbound qualification (using platforms like Qualified or Marketo) or outbound prospecting (through Outreach). Continue to improve its performance until it outpaces the lowest-performing human BDRs. Build an AI-powered inbound qualification system that captures, scores, and routes every website visitor and form submission in real time. Ensure no lead goes unaddressed and Account Executives (AEs) only engage with prospects who are ready to buy. Double the revenue-generating time of each AE (from about 25% to over 50%) by automating tasks such as CRM updates, call summaries (via Gong), follow-up sequences, proposal drafts, and pipeline management. Remove as much administrative overhead as possible. Design and implement an AI integration layer across Flosum’s Go-to-Market stack (Salesforce, Marketo, Outreach, Qualified, Gong). Ensure seamless data flow between systems, eliminate manual data entry, and enable AI agents to share insights in a continuous feedback loop with Salesforce as the central hub. Set up and manage an AI-driven competitive intelligence system. Track competitor moves, pricing changes, and product launches, delivering structured weekly insights to sales and product teams. Scale outbound campaigns to ten times their current size without increasing headcount. Use AI to analyze accounts, generate personalized messaging based on ICP signals (like Salesforce team size, DevOps tools in use, and compliance needs), and orchestrate outreach across email, LinkedIn, and phone. Implement a closed-loop data feedback system that connects BDR activities, pipeline outcomes, and AI agent performance. Use real conversion data to improve ICP targeting, messaging, and channel strategy every week. Deploy AI-driven customer health scoring and churn prediction models. Identify at-risk accounts ahead of renewals and provide actionable prompts to the Customer Success team based on usage data. Location This is a remote position based in Ukraine.

Welcome to Liven! We are pioneering a global ecosystem of innovative products designed to empower individuals in their journey of self-discovery, helping them overcome negative thoughts and behaviors.Our Ecosystem Includes:Self-Discovery Companion — an app that has already impacted 2.5 million users, fostering deeper self-relationships through AI coaching, mood tracking, sound practices, and engaging bite-sized learning.Online Coaching — expert-led sessions to assist in navigating life's complexities.Supplements — products aimed at physical recovery and overall wellness.Liven thrives on curiosity. Our team is passionate about innovation and committed to creating impactful solutions that guide individuals on their self-discovery path. We foster a culture of experimentation to continuously improve how we support our users.We are searching for a Lead Front-End Engineer to spearhead the development of our builder solutions and complex automation systems. This role is ideal for those who relish the challenge of constructing tools that facilitate internal processes, requiring a keen focus on architectural flexibility, performance, and high-load visual editors.

Kiss My Apps is a dynamic platform company that integrates 7 product verticals and boasts over 30 AI-first products, serving more than 100 million users. Our proprietary ecosystem encompasses advanced analytical, payment, and marketing solutions.Our products, including world leaders in utilities, lifestyle, and health & fitness — such as AI Remodel, Printer, Botan, and Calorie Counter — consistently rank in the top positions of the App Store, catering to the needs of hundreds of millions of users.At KMA, our rapid growth is our competitive advantage, expanding at a rate of at least 3x year over year. We are on the lookout for a Lead Product Manager to help us accelerate our scaling efforts.About the Role:We seek a Lead Product Manager who will drive the development of one of our AI-driven applications within a rapidly growing market. This role involves full ownership of product outcomes, from shaping product strategy to scaling growth channels.Our products already exhibit confirmed product-market fit and significant growth potential. Your mission will be to identify and optimize the unit economics, establish a systematic process for product experiments, and scale the product through product development and performance marketing.This position is for someone who aims not just to maintain an existing product but to drive its scaling, influence key business metrics, and build a product with the potential to become the flagship in its niche.Your Responsibilities:Define product and growth strategy for scaling.Identify and stabilize the product’s unit economics: pricing, paywall, retention, acquisition, and key product metrics.Build a systematic process for product experiments to grow revenue and scale the product.Manage the product team and establish clear development goals.Collaborate closely with marketing to scale traffic acquisition (Meta, CPA networks, and other channels).Make key product decisions: strategy, positioning, monetization, roadmap, and team development.What We Expect From You:Experience with mobile applications and an understanding of the mobile market specifics.Practical experience in scaling products in a fast-paced environment.

About Softermii:Softermii is a leading outsourcing and outstaffing company with over 11 years of expertise in web and mobile application development. Our team, comprising more than 120 skilled professionals from 6 countries, has navigated various challenges, including the COVID-19 pandemic and ongoing war aggression in Ukraine. Despite these obstacles, we have maintained our commitment to sustainable development, preserving all our projects and jobs while continuing to grow.We are proud to expand our portfolio daily, specializing in areas such as:HealthcareReal EstateLivestream E-commerceFintech (Wealth Tech, Capital Trading)Real-Time Communications (RTC)Additionally, we are developing two innovative solutions that enhance our clients' experiences with faster applications for video or audio calls (VideoRTC) and a 3D visualization application for real estate (Apartmii).Our Mission: At Softermii, we believe in turning any idea into a valuable product. Our mantra is to Succeed Without Limitations.Future Plans: We are continually evolving and seeking new opportunities to innovate and excel.

Quantum Systems GmbH develops unmanned solutions for air, land, and sea operations, combining advanced hardware with AI-driven software. The company delivers real-time data and precise control to defense, security, and public sector clients worldwide. Since establishing the Kyiv office in 2022, Quantum Systems has remained committed to supporting Ukraine. Role overview The Service Team Lead manages the Kyiv-based service team, focusing on high-quality repairs, process improvements, and the professional growth of engineers. This is a full-time, on-site position based in Kyiv. Main responsibilities Team leadership Direct and coordinate a team of service engineers and testers. Plan workloads, assign tasks, and set priorities to improve productivity. Mentor, onboard, and guide engineers in their development. Lead technical discussions and review complex cases to find solutions. Quality assurance Ensure all repairs and testing meet company standards. Monitor deadlines, SLAs, and overall service quality. Analyze recurring technical issues and drive improvements to reduce defects. Review and validate complex repairs involving electronics, UAVs, and modules. Process improvement Streamline workflows and introduce industry best practices. Maintain and update checklists, procedures, and technical documentation. Collaborate with Testing, Logistics, Procurement, and R&D teams. Track performance metrics and prepare reports on key KPIs. Technical involvement Help resolve complex engineering challenges as they arise. Make technical decisions in non-routine situations. Oversee repairs of UAVs, electronic modules, and power systems. Location: This position requires full-time, on-site presence at the Kyiv office.

Join SKELAR, a pioneering Ukrainian venture builder that is shaping the future of tech businesses on a global scale. We collaborate with co-founders to assemble formidable teams that excel in international markets.Currently, SKELAR operates multiple businesses across various sectors, from EdTech to marketplaces. Our companies consistently rank among Ukraine's top startups and product firms, frequently appearing in prestigious publications like TechCrunch and Wired.With a robust team of over 1,000 professionals, we pride ourselves on our exceptional expertise and ambitious goals. Our talent is our most valuable asset, and we strive to build our businesses alongside the best in the industry.We are excited to invite applications for the role of Senior Product Engineer (AI-Native Full-Stack) within our R&D Department.At Brighterly, we are redefining online education for children by creating an ecosystem that serves as the ultimate destination for learning mathematics. Our mission is to develop the next EdTech unicorn in a market valued at $130 billion.Technology stack: https://skelar-tech.github.io/Brighterly/Key challenges include:Rapid Prototyping: Build functional MVPs (Web & Mobile) from scratch within short sprints.AI Integration: Implement LLM, agent architectures, and RAG systems into our products.Fullstack Delivery: Independently develop features from database schema to final animations on the frontend.Cross-platform Experimentation: Create mobile applications using AI tools on Flutter/React Native to validate market hypotheses.Architecture for Speed: Design flexible architecture that allows for rapid shifts in development direction without pain points.What we value:Senior Level Mindset: You understand how scalable systems are built, even those generated by AI.AI-Fluency: Familiarity with tools like Claude, Cursor, Windsurf, and v0.dev is essential.

nix is seeking a Lead PHP Developer based in Ukraine to work with a global client specializing in corporate brand protection and domain management. This client supports Fortune 500 companies and large enterprises, offering services such as domain registration, online brand monitoring, and anti-counterfeiting. Project focus The main task centers on merging two existing client portals into a single, unified platform. Throughout this process, all current features must be preserved, with the aim of reaching full feature parity before any migration takes place. Technology stack PHP with Laravel RabbitMQ MySQL Nuxt.js (Vue.js) AWS infrastructure Key responsibilities Lead the technical effort to combine two legacy portals while maintaining existing functionality Ensure a smooth transition to the unified platform with no loss of features Work within the specified technology stack to deliver project goals

About SKELARSKELAR is an innovative venture builder dedicated to establishing international IT companies that align with venture capital investment strategies. Collaborating closely with our co-founders, we curate high-performing teams to launch technology enterprises poised for global success.The OpportunityWe are in search of a Product Marketing Lead to take ownership of the entire growth funnel — from strategy and experimentation to team leadership and performance management. You will spearhead the growth of a subscription-based product utilized by users worldwide.As a central figure in growth, you will integrate acquisition, monetization, product insights, and data analytics into a cohesive, agile operation. You will lead a team of over four talented Product Marketing Managers, setting ambitious goals, elevating standards, and delivering measurable results.

About the Company onhires is partnering with a defense technology startup in Kyiv. This team develops and manufactures products built to withstand real combat conditions. Engineers, developers, and production specialists work side by side, focused on delivering solutions that work in practice, not just on paper. Role Overview The Product Lead / Field Operations Lead acts as the central point for execution across the company. This is more than a traditional product management role. The person in this seat drives tasks from start to finish, makes decisions, and keeps projects moving. Expect to work closely with teams and leadership to ensure that goals turn into results. What You Will Do Coordinate field trials for products in combat-simulated settings. Organize and run demonstrations for military units, partners, and integrators. Work with engineering and production teams to spot blockers and keep execution on track. Track deadlines and monitor real progress on deliverables. Travel to frontline cities for demos and to collect feedback. Bring teams together and maintain a clear overview of all projects. Collaborate directly with the CEO on top priorities and key tasks. What We Look For Technical or strong operational background (engineering, defense, hardware, operations, or consulting). Experience in military or similar environments is a strong plus. Background with hardware products, testing, or implementation is highly valued. Self-motivation and personal accountability for results. Comfort working under pressure and with shifting priorities. Clear communicator, able to work with engineers and military partners alike. Structured thinker who can make quick decisions. Personal vehicle and willingness to travel regularly. Conditions Location: Kyiv, office-based role.

Reporting & ERP Lead - an exciting and strategically vital role aimed at establishing a unified financial-analytical ecosystem for our rapidly expanding company. We are growing quickly: more legal entities, more markets, more payment providers, and more products. We need a proactive individual who will not merely 'gather reports' but will develop a comprehensive architecture for financial data at the group level.Your mission is to create a 'single source of truth' for management decisions: from designing processes in ERP systems to constructing a transparent, automated reporting system that scales seamlessly with our growth.Work format: hybrid (Kyiv).You'll be a great fit if you:Desire to build systems from scratch rather than maintain legacy processes.Are prepared to integrate finance, data, technology, and business.Enjoy tackling complex challenges: multi-jurisdictional issues, multi-currency transactions, diverse regulatory requirements.Can think strategically while being unafraid to delve into operational details.Your future tasks:Implementing and enhancing ERP systemsLeading the implementation/setup/scaling of the ERP system.Designing financial processes: procurement, payments, period closing, reconciliations.Defining reporting requirements for ERP and influencing solution architecture.Coordinating work with contractors, integrators, and internal teams.2. Building a management reporting systemCreating a unified group reporting system.Developing key dashboards for management, finance, and operations.Ensuring accuracy, regularity, and timeliness of reporting.Establishing data logic across various systems.3. Financial data architectureAligning financial, payment, product, and operational data logic.Building a 'single source of truth' for key metrics.Ensuring the scalability of the data model.4. Collaboration with teams and stakeholdersWorking closely with legal, tax, treasury, data engineering, and operations teams.Training teams on new systems and reports.Providing analytical support for group-level management decisions.What you need to join us:5+ years of experience in auditing, consulting, or IT.Experience in a managerial/lead/head position.Deep understanding of financial reporting.Experience in building group management reporting.Hands-on experience in implementing or scaling ERP systems.Advanced proficiency in Excel/Google Sheets.Strong communication skills.

Join Kyivstar as a Lead Telecommunications Engineer and play a crucial role in shaping the future of telecommunications in Ukraine. In this dynamic position, you will lead innovative projects, ensuring the highest standards of quality and efficiency in our telecommunication systems.

Join our dedicated team as an AI Training Evaluator, where your attention to detail will play a crucial role in the development of an AI agent. You will be responsible for reviewing and assessing the agent's responses, ensuring it aligns with our standards for safe, respectful communication. Comprehensive online training will be provided.Your mission will be to help prevent the AI from disseminating harmful, offensive, or toxic content, thereby creating a safer environment for users.This is a fully remote position, offering flexibility in your schedule. We welcome both full-time and part-time applicants.