Tech Lead for Web Core Products & Chrome Extension

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…

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 Kyivstar's dynamic HR team, where we implement top-notch HR practices that have earned us recognition as one of Ukraine's top three employers. We invite you to be part of our team and engage in numerous developmental projects! As a Senior Compensation and Benefits Specialist, you will play a crucial role in calculating bonuses for various motivational programs, analyzing their effectiveness, and developing proposals for enhancements. You will also be responsible for formulating and updating compensation and benefits policies, assessing the technical feasibility of changes in our HR management systems, and preparing detailed reports and presentations for management.

Join Ajax Systems, a leading international technology company and Europe’s largest developer and manufacturer of advanced security systems. We are on the lookout for a talented and experienced Embedded Linux C++ Developer to enhance our Video Management System. You will contribute to our innovative ecosystem of over 180 devices and applications, leveraging your expertise to transform security solutions for millions of users globally. Collaborate within our System Department to develop cutting-edge technology, including our modular RTOS, OS Malevich, and cloud services powered by Java, Kotlin, and AWS. Play a key role in our mission to provide reliable security solutions that protect homes and businesses around the world.

Join Ajax Systems, a leading international technology firm and the largest manufacturer of security systems in Europe. With over 4.5 million end-users and 330,000 PRO-users across more than 180 countries, our innovative products provide comprehensive solutions for safeguarding residential and commercial properties of all sizes. Our portfolio includes 280 devices dedicated to intrusion protection, video surveillance, fire safety, comfort, and automation. We demonstrate significant growth annually, both in our team size and our global user base.Our Research and Development department, consisting of four key divisions: System, Device, Automation, and QA, is the driving force behind our product development. We are currently expanding our team and are in search of a talented Senior Front End Engineer with expertise in React.

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).

Skelar is a pioneering Ukrainian venture builder dedicated to developing international tech businesses. Together with our co-founders, we assemble strong teams to excel in global markets.Currently, Skelar boasts numerous businesses across various niches—from EdTech to marketplaces. Our ventures consistently rank among the top startups and product companies in Ukraine, achieving high rankings in the App Store and developing platforms utilized by millions. Our businesses have been featured in leading media outlets like TechCrunch and Wired.We take pride in our robust team of over 1000 specialists, all possessing exceptional expertise and ambitious goals. Our people are our most valuable asset, and we strive to build businesses alongside the top talents in the market.We are excited to announce the launch of a new product and are on the lookout for a Senior User Acquisition Manager to lead our Meta Ads strategy (initially web2web, followed by web2app).We are seeking not just an executor, but a future leader who is eager to build this direction from the ground up, with the potential to become a manager for three exceptional User Acquisition Managers (each with their own source) within 6-8 months. This is an opportunity to develop a strategy from scratch and acquire the necessary resources for large-scale experiments that leverage accumulated experience into business results.Key Challenges Ahead:Establishing infrastructure for launching paid Meta traffic (and other channels) as part of the new business launch with web2web and web2app acquisition;Launching the first Meta Ads traffic for the product and collaborating with the product marketing and creative teams to find the unit economics;Building a system for stable and continuous testing of marketing hypotheses to find the product-market fit in priority markets;Becoming a mentor for the current User Acquisition team, providing practical experience and enhancing their performance;What We Value:3+ years of experience with Meta Ads in B2C SaaS products (practical experience with Google Ads and TikTok Ads is a plus);Successful track record of managing advertising budgets (from $500,000/month);Data-driven approach to hypothesis validation, always tracking metrics during launches;Appreciation for unconventional approaches, particularly regarding tests and intriguing cases;Initiative and a desire to grow quickly into a people manager role;Intermediate English proficiency (B1+);

Ajax Systems—a leading international technology company and the largest developer and manufacturer of security systems in Europe, specializing in smart home solutions. Our ecosystem consists of 180 devices, along with mobile and desktop applications, and a robust server infrastructure. Each year, we experience exponential growth in both our team size and user base worldwide, currently employing over 4,100 professionals. Ajax sensors safeguard 4 million users across more than 187 countries.Our R&D division is responsible for device development, comprising four departments: System, Device, Automation, and QA.The Device Department focuses on creating advanced security and automation devices, tackling significant challenges in areas such as:- Low-Power: Our devices are designed for extended battery life;- Cost Efficiency: Our mass-market products are priced competitively;- DFM (Design for Manufacturing) and DFH (Design for Humans): Our schematics, casings, and other components are engineered for easy mass production without compromising quality.We primarily develop using STM32 microcontrollers (along with other MCUs and SoCs) utilizing Embedded C. Our team comprises highly skilled hardware engineers, Embedded C specialists, industrial designers, and mechanical engineers.We are seeking a Senior Wireless Embedded Engineer specializing in the development of embedded network software for video device hardware platforms (BSP) based on Embedded Linux, utilizing wireless WiFi solutions for video streaming. The ideal candidate will be experienced, proactive, and eager to implement cutting-edge solutions.

Who Are We?At Welltech, we are dedicated to our mission of inspiring and empowering individuals to pursue their wellness journey. With a global footprint and roots in Ukraine, we have successfully engaged over 25.5 million users, helping them cultivate healthy habits through our innovative and interactive wellness solutions. Our presence spans five hubs located in Cyprus, Ukraine, Poland, Spain, and the UK, all supported by a dynamic team of over 700 professionals. Our apps, including Muscle Booster, Yoga-Go, and WalkFit, are designed to empower users to transform their lifestyles and embark on personalized wellness journeys.At Welltech, you can make a significant impact. Our core values emphasize collaboration, results-driven efforts, leadership by example, and the ethos of being "well-makers." If you thrive in a fast-paced environment and resonate with our mission, we invite you to join us in shaping the future of wellness.

Please be aware that this position requires relocation to our Milan office.About SatispaySatispay is transforming the way people make everyday payments, striving to make them straightforward, equitable, and accessible to all. Our mission has evolved to redefine the future of finance.As a movement, we empower millions, united by a common goal to address significant challenges. We are just at the beginning of our journey. Our pace is swift, our ideas are bold, and we foster an environment of trust where we challenge the status quo, learn, and grow together.As a member of the Core Team, you will engage with vital systems, managing connections with external banking entities, orchestrating payment processes, and establishing the essential infrastructure for Identity and Access Management (IAM). Moreover, the team oversees risk-related services, particularly in credit risk management and fraud detection.If you aspire to build impactful solutions that serve as the bedrock for all our product teams, you are in the right place.What You Will DoAs a Senior Backend Software Engineer within the Core Team, you will be instrumental in developing the core architecture of our payment platform. You will ensure the technical excellence and timely delivery of intricate systems that affect various services and product teams throughout the organization.Your daily responsibilities will include:Engineering Core Platform Domains: Contribute to the design and enhancement of our most sensitive systems, such as the Transaction Ledger, IAM, and Payment Orchestration. You will ensure these systems are high-performing, scalable, and functional for seamless integration by our product teams.Scaling Risk & Financial Engines: Optimize and implement services focused on bank integrations, credit risk, and real-time fraud detection. You'll create the robust logic that safeguards our

Role Overview Welltech is seeking a Senior Legal Counsel with deep experience in Intellectual Property and Artificial Intelligence. This position is based in Ukraine and focuses on guiding legal strategies that protect and advance Welltech’s technology and products. What You Will Do Advise on intellectual property protection for new and existing products Support compliance efforts related to AI and IP regulations Identify and manage legal risks connected to technology development Work closely with product and engineering teams to safeguard Welltech’s intellectual assets About the Team This role is part of Welltech’s legal team, contributing directly to the company’s mission of advancing technology while protecting its innovations.

nix collaborates with a global leader in corporate brand protection and domain management. The client supports Fortune 500 companies and large enterprises by providing domain registration, online brand monitoring, and anti-counterfeiting services. Their work centers on securing digital assets at scale. A new project is underway to combine two legacy client portals into a single platform. The team aims to preserve all current features during the transition. The technology stack includes PHP (Laravel), RabbitMQ, MySQL, and Nuxt.js (Vue.js), all deployed on AWS. Role overview The Senior Automation QA Engineer (Java) will architect and build a comprehensive test automation framework from scratch. This framework will support regression, API, and end-to-end testing for the unified platform. What you will do Design and implement a test automation framework using Java Develop tests for regression, API, and end-to-end scenarios Ensure coverage across the new unified platform Project stack PHP (Laravel) RabbitMQ MySQL Nuxt.js (Vue.js) AWS