Lead Front-End Engineer at Liven | Kyiv

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, m…

TENTENS Tech is a partner IT company of SKELAR, a Ukrainian venture builder focused on creating international tech businesses.We develop social discovery platforms for over 20 million users worldwide, driven by deep expertise in analytics, high-load systems, and performance marketing.Our team at TENTENS Tech consists of over 250 professionals, each acting as a CEO in their role and contributing to collective success. We adhere to the 10/10ths philosophy: we stay focused on our goals, ask the right questions along the way, and never settle for "good"—we strive for excellence and beyond. If you resonate with this description and are ready to accelerate with us, let's connect!We are currently seeking a Backend Engineer (PHP/Go) to help elevate our performance standards.

Join Universe Group as a Senior Product Manager to lead the development and optimization of our innovative Guru Apps. In this pivotal role, you will collaborate with cross-functional teams to define product vision and strategy, ensuring alignment with customer needs and market trends. Your expertise will help shape the future of our applications, driving user engagement and satisfaction.

Join our dynamic team as a Senior Full Stack Engineer where you will engage in exciting projects that enhance the digital landscape. Your expertise in both front-end and back-end development will play a critical role in delivering high-quality software solutions. Collaborate with a team of talented professionals, leveraging the latest technologies to drive innovation and efficiency.

Speechify’s mission is to remove barriers to reading and learning. With a user base of over 50 million, Speechify converts documents, books, Google Docs, articles, and websites into audio, helping people read faster and understand more. Our products span iOS, Android, Mac, a web app, and a Chrome extension. Recent recognition includes Chrome Extension of the Year from Google and Apple’s App of the Day. About the Team Speechify’s nearly 200 team members work fully remotely around the world. The group includes frontend and backend engineers, AI research scientists, and professionals with experience at Amazon, Microsoft, Google, and graduates from universities such as Stanford. Role Overview This Tech Lead position focuses on Web Core Products and the Chrome Extension. The role suits someone who approaches product decisions strategically, enjoys shaping user experiences, and thrives in a setting where priorities shift and impact is visible. Technical leadership and hands-on delivery are both important here. What Matters Here Consistent delivery of high-quality technical solutions Clear, effective communication with teammates and stakeholders Strong work ethic and personal drive Ability to lead through technical expertise rather than hierarchy Interview Process The process includes several technical assessments. The aim is to complete all steps within one week. Location This role is based in Kyiv, Ukraine. The team operates remotely.

Join Ajax Systems, a leading international technology company, as a Team Lead C++ Developer in Kyiv. We are the largest developer and manufacturer of security systems in Europe, creating a comprehensive ecosystem with over 180 devices, mobile and desktop applications, and a robust server infrastructure. Our System Department is transforming devices into fully-fledged IoT solutions, developing the innovative OS Malevich (a modular RTOS) and the Ajax Cloud service (Java 20/Kotlin, AWS). As a pivotal part of our team, you will lead the development of cutting-edge security solutions that protect millions of users across 187 countries, collaborating with a talented group of engineers and developers.

Join SKELAR, a pioneering Ukrainian venture builder focused on creating international tech businesses. Together with our co-founders, we assemble talented teams to succeed in global markets.At SKELAR, we have multiple businesses operating in diverse niches — from EdTech to marketplaces. Our companies are featured among the top startups and product firms in Ukraine, consistently ranking high in the App Store and developing platforms that millions of people use. Our innovations have been covered by major media outlets such as TechCrunch and Wired.We take pride in our strong team of over 1000 professionals, each bringing exceptional expertise and ambitious goals. Our people are our most valuable asset, which is why we strive to build businesses with the best talents available.Every successful venture starts with a single line of code. Are you ready to write the next chapter with us?We are launching a new business.With over 1.8 billion people learning foreign languages, less than 10% can speak them fluently. We are developing an interactive communication environment — the AI Language Tutor — allowing users to speak and learn without the fear of judgment.Our goal is to create a product that learns alongside the user — gathering data to personalize the approach and motivate further learning. We believe in tailored learning experiences rather than one-size-fits-all solutions, leveraging algorithms to help users learn in their own ways and achieve effective results.This product is yet to be built. If you thrive on creating something from the ground up, let’s embark on this journey together!Being among the first five team members means you will play a crucial role in defining the direction of this business. We invite you to join us on this exciting adventure.You will lead the development of our key asset — the AI tutor mobile application. From inception to execution, you will lay the groundwork for the mobile architecture, write the initial lines of the MVP code, and establish release processes. Given that real-time voice interaction with AI is central to our product, your primary technical challenge will be to ensure a seamless, fast, and stable user experience.

Join Hire Hangar and collaborate with rapidly expanding global companies while cultivating a sustainable, remote career.Job Title: Senior Full Stack Engineer – AutomationLocation: RemoteTime Zone: Flexible / Aligned to HQ Time ZoneRole Overview: We are in search of a Senior Full Stack Engineer who has a strong enthusiasm for intelligent automation to join our expanding SaaS platform team. Your role will involve designing and developing comprehensive solutions that integrate RPA agents, AI-driven workflows, and cutting-edge frontend experiences, enabling our clients to automate intricate tasks while focusing on their core business needs.This position is ideal for an engineer who takes pride in ownership and is proficient in architecting backend automation pipelines as well as creating user-friendly, data-rich interfaces. You will engage with the entire technology stack and work closely with AI/ML engineers, product managers, and UX designers to deliver automation features that are robust, dependable, and user-friendly.

Join Liven as the Head of Growth!Liven is a pioneering company dedicated to creating a global ecosystem of products aimed at empowering individuals on their self-discovery journeys. Our mission is to foster self-observability, helping users break free from negative thoughts and behaviors.Our Ecosystem Includes:Self-Discovery Companion: A mobile application that has already transformed the lives of 2.5 million users, fostering deeper self-relationships through AI coaching, mood tracking, sound practices, and bite-sized learning.Online Coaching: Expert-led sessions to guide individuals through life's complexities.Supplements: Products designed to aid physical recovery and support overall wellness.At Liven, curiosity drives us. We are committed to creating meaningful solutions through a culture of experimentation, consistently seeking better ways to support individuals on their paths of self-discovery.As the Head of Growth, you will play a crucial role in bridging our creative engine with our core product. Your primary responsibility will be to design the user journey from initial curiosity to committed subscription. This involves crafting compelling narratives, optimizing monetization strategies, and ensuring a seamless transition into the product experience. Your Impact:Ownership of the Funnel: Manage all aspects of landing pages, quizzes, and checkout flows from the first click to the first payment.Monetization Strategies: Develop pricing strategies and offer logic while focusing on optimizing lifetime value for customers.Effective Storytelling: Communicate complex self-regulation concepts in relatable, high-converting narratives.Marketing Automation: Execute rapid testing of hypotheses to create personalized user experiences.Systems Development: Build infrastructure for high-speed experimentation and localization, emphasizing fast testing over lengthy debates.

Atto Trading is an innovative quantitative trading firm leading the charge in global high-frequency trading strategies. We are on the lookout for a skilled C++ Software Engineer to become a vital part of our expanding team.This role offers the flexibility of remote work from Ukraine, with occasional in-office attendance in Kyiv as circumstances permit.Our international team is diverse, comprising experts in trading, statistics, engineering, and technology. Our structured approach, combined with rapid feedback from the market, enables us to swiftly transform concepts into profitable solutions. Working in our collaborative environment allows us to tackle some of the most challenging issues in the industry together. As a small firm, we maintain agility and uphold the highest standards of integrity, creativity, and dedication.Your Responsibilities:Architect and implement performance-critical components for our large-scale trading infrastructure.Develop high-frequency trading (HFT) systems in C++ focusing on low latency and unwavering reliability.Produce modern, efficient code based on the latest C++ standards.Engage directly with cutting-edge networking hardware using kernel-bypassing drivers.Conduct performance research aimed at enhancing the speed and scalability of our platform.Qualifications:Minimum of 3 years of direct experience in C++ development.In-depth understanding of C++ standards (C++14, C++17; C++20 knowledge is highly desirable).Practical experience with Python and/or Bash scripting.Familiarity with Linux operating systems and system-level programming.Strong understanding of multithreading, IPC, and concurrent systems.Proven ability to optimize latency and throughput, including experience with profiling and PGO.Knowledge of object-oriented programming and software design patterns.Bachelor’s degree in Computer Science, Computer Engineering, or a related technical discipline.Meticulous attention to detail, coupled with a critical and quality-oriented mindset.Able to work independently or within small teams in a fast-paced environment.Excellent communication skills and upper-intermediate (or higher) proficiency in English.A genuine curiosity and passion for financial markets and trading.Preferred Qualifications:Experience in developing high-performance, low-latency systems on Linux.Familiarity with operating system internals and kernel-level networking.Understanding of financial instruments such as stocks, ETFs, futures, or options.Knowledge of protocol-level networking (TCP/UDP/IP stack insights are a plus).Benefits:Competitive compensation package.Performance-based bonus opportunities.Healthcare and sports/gym budget.Mental health support, including access to therapy.Paid time off (25 days).Relocation support (where applicable).

Join Ajax Systems as a Procurement Executive and become a vital part of our international team that is revolutionizing the security industry. In this role, you will oversee procurement operations, enhance supplier relationships, and contribute to our mission of providing innovative security solutions. Your expertise will support our growth trajectory as we expand our product offerings and market presence, ensuring the highest quality standards and cost-effective sourcing strategies.