C++ Software Engineer - Trading Platform

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).

Atto Trading is a pioneering quantitative trading firm specializing in a diverse portfolio of signal-driven high-frequency strategies across cash equities and futures markets.We are on the lookout for a passionate Trading Operations Engineer to join our vibrant team. With our expansion into new markets, this is a thrilling time to become part of our international collective of experts specializing in trading, statistics, engineering, and technology. Our disciplined methodology, paired with rapid market feedback, enables us to swiftly transform innovative ideas into tangible profits. We foster an environment of collaborative learning, empowering us to tackle the most challenging problems together.As a compact firm, we maintain agility and uphold the highest standards of integrity, creativity, and dedication.Our Trading Activities:We actively trade stocks and futures across major US exchanges, including NASDAQ, NYSE, ARCA, Cboe, CME, CFE, and more.Position Highlights:Seize a unique opportunity to integrate software engineering with real-world finance right from day one.In this position, you will apply your engineering expertise directly to live trading and financial markets.Benefits of Joining Us:Continuous investment in the latest technology stack.A creative approach to selecting the hardware and software tools essential for your work.Join a dedicated team committed to ongoing learning and improvement.No external clients; you will be the sole user of the products you develop.Make a significant impact on the company’s bottom line while holding a crucial position within the organization.Key Responsibilities:Oversee and manage Atto Trading’s automated trading systems, ensuring seamless operations.Automate and refine trading support workflows and pipelines utilizing Python and Bash scripting.Collaborate with software engineering teams to enhance and maintain trading infrastructure and internal monitoring systems. Work alongside traders, engineers, brokers, and exchanges to resolve intraday issues in real time. Support daily risk operations by generating reports and executing established risk procedures.Document production incidents and maintain detailed logs and monitoring protocols.Assist in new market deployments by coordinating with internal teams on infrastructure and connectivity.Manage and maintain enterprise systems concerning pipeline scheduling, software releases, and operational monitoring.Qualifications:Proficient in Python programming with the ability to produce clean, reliable code with minimal oversight.Solid foundational knowledge of Linux (command line, basic system understanding).Expertise in data visualization, manipulation, and processing for operational insights.Meticulous attention to detail with a rigorous, analytical mindset.Ability to thrive in a dynamic and fast-paced environment.

Join Atto Trading, a leading quantitative trading firm established in 2010, renowned for our innovative high-frequency trading strategies. As we continue to grow our international team, we are eager to welcome a skilled Data Engineer who will be instrumental in the development of our extensive Data Lake, catering to an increasing array of research and production datasets. Our collaborative culture fosters learning and innovation, empowering our team to tackle complex challenges and drive profitability through rapid market responsiveness.Key Responsibilities:Design and manage high-performance, scalable on-premise data storage systems optimized for extensive data access and analytics tasks.Configure and oversee compute clusters for distributed data processing.Develop capacity and scalability plans to support annual data growth exceeding 100TB.Create efficient monitoring and alerting systems to anticipate growth trends and manage critical situations proactively.Build, automate, and maintain various data pipelines to ensure smooth data flow.Enhance existing and establish new data checks to ensure data integrity.Implement a comprehensive on-premise Data Lake connected to VAST storage for normalized market data across multiple sources including:US Equities, US Futures, and SIP feedsAdditional market data sources as they become availableSecurity Definition data for various marketsPrivate column dataDevelop and manage end-to-end data pipelines with monitoring to ensure data quality and governance.Analyze existing data models and usage patterns to identify bottlenecks and optimization possibilities.Create metadata and catalog layers for efficient data discovery.Design event-driven architectures for near real-time market data processing.Oversee ETL/ELT data pipelines using tools like Prefect or Airflow, ensuring robustness and clear operational ownership.Guarantee fault tolerance, scalability, and availability across our systems.Collaborate with traders, quantitative researchers, and other stakeholders to enhance the usability and performance of the Data Lake.

Our Mission and VisionAt Solidgate, we are dedicated to empowering exceptional entrepreneurs in their journey to build outstanding internet companies. Our goal is to provide the financial infrastructure that builders of the digital economy need to thrive. We aim to become the premier payments orchestration platform globally.We recognize that a robust analytics infrastructure is not merely supportive; it is a crucial driver of product quality, reliability, and business growth.About the RoleAs a product-driven FinTech company operating within a fast-paced and regulated environment, Solidgate processes millions of transactions daily. The accuracy of our data, real-time monitoring, and system reliability are essential for revenue generation and maintaining customer trust.To bolster our growth, we are enhancing our Platform Analytics division and seek a Platform Analytics Engineer to fortify our analytics and monitoring infrastructure.The Platform Analytics team at Solidgate lays the analytical groundwork for our platform. We focus on systems that monitor data quality, system health, anomalies, and key business metrics in real time, ensuring platform stability, facilitating operational decision-making, and empowering teams to scale effectively.This position bridges engineering and data science, emphasizing platform enablement.Your mission will be to enhance and sustain our analytics infrastructure, which encompasses automation, monitoring systems, and AI solutions, while continually refining shared projects, tools, and guidelines used across the analytics team.This hands-on role will grant you ownership over critical components of our platform-level analytics systems, with opportunities for mentorship and shared responsibility within the team.You will engage with Python-based data automation and observability systems, including anomaly detection, metrics, and real-time monitoring, designed to identify data inconsistencies, trend deviations, and operational challenges.Explore our technology stack here.

Join our Automation team as an Embedded C++ Developer, where you will contribute to the development of high-quality electronic devices through innovative embedded systems. Your role will involve tackling challenges at various system levels, from creating firmware for testing hardware to designing software for autonomous equipment that ensures production quality control.Collaboration is key to our success, and you will be part of a dynamic environment with a focus on thoughtful system architecture and project organization. This structure enables multiple engineers to work effectively on the same product and quickly understand the codebase.

Embark on Your Career as a Junior Data Scientist / Quant Researcher Intern in 2026!Are you driven by a passion for data analysis? Do you excel in competitive environments and relish the challenge of solving intricate problems? If so, we invite you to apply for our paid 4-week internship scheduled for the summer of 2026.About Atto Trading — The Fusion of Engineering and FinanceAtto Trading is a cutting-edge quantitative trading firm dedicated to developing innovative, data-driven strategies utilizing high-performance systems to navigate global financial markets.Our compact and dedicated team of engineers, traders, and researchers collaborates to:Transform concepts into profitable trading strategies.Engage actively in U.S. financial markets.Continuously learn and confront challenging technical problems together.Create ultra-fast, robust software solutions.As an intern, you will be fully integrated into our engineering team from day one, engaging in meaningful projects rather than merely assisting with side tasks.Your Responsibilities During the Internship Will Include:Analyzing extensive market data sets utilizing tools such as Polars, SQLAlchemy, and scikit-learn.Developing interactive reports and visualizations using Bokeh or Shiny-Plotly to provide actionable insights.Employing proprietary analytical tools to establish pipelines for subindicator generation.Collaborating with engineers, traders, and analysts in a dynamic business environment.Internship Details:Duration: 4 weeks during summer (August)Location: In-office internship in Lviv, Ukraine.Format: Paid internship.Exceptional interns may receive an offer for a full-time or part-time position based on academic commitments.Selected interns will receive an iPad as part of their welcome package from Atto Trading.This internship presents a unique opportunity to acquire hands-on experience in high-frequency trading (HFT), where analytics, precision, and speed are critical to success.Important Note: This internship is specifically for candidates residing in Ukraine. Please include a brief overview of your key achievements (academic, project-based, volunteer, or personal) in your CV.

Kyivstar seeks a Trade Marketing Specialist based in Kyiv, Ukraine. The position focuses on supporting retail locations by developing and overseeing point-of-sale (POS) materials, ensuring stores are equipped for promotions, and managing procurement activities. Key Responsibilities Oversee the quality, production, and distribution of POS materials for retail outlets. Ensure stores receive the marketing tools needed for campaigns and promotions. Initiate and coordinate procurement processes for marketing resources. Select suppliers and approve design templates for marketing materials. Track production timelines and delivery schedules to maintain project momentum. Manage the trade marketing budget, seeking opportunities to optimize spending. What Helps in This Role Experience in marketing, procurement, or project management. Ability to meet deadlines and maintain control over processes. Strong organizational skills and a structured approach to daily tasks. Accountability and determination to complete assignments. Collaborative mindset with effective communication skills across teams. Preferred Qualifications Background in telecommunications. Experience working with suppliers. Benefits Flexible, hybrid work schedule. Annual bonus based on goal achievement. Access to over 340 internal training courses, a comprehensive library, and partner education programs. Life and health insurance coverage. Employee support programs for staff and their families, including psychological and legal assistance.

Join Wix as a Frontend Engineer for our dynamic Editor platform, where you'll play a vital role in enhancing our business solutions. You'll be responsible for designing and developing scalable APIs and improving the runtime and user experience infrastructure that serves millions of users globally. Your daily responsibilities will include:Creating robust infrastructure to extend existing Wix business solutionsDesigning and implementing APIs tailored for internal and external stakeholdersOptimizing application runtime and UX infrastructure utilized by millionsCollaborating with diverse teams including R&D, developers, UX designers, and business analysts to align requirements and drive progress

Ajax Systems is a leading international technology company 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 products are trusted worldwide. Ajax provides comprehensive solutions for safeguarding residential and commercial properties of all sizes. Our product portfolio features 280 devices designed for intrusion detection, video surveillance, fire safety, and automation solutions. Each year, we experience exponential growth in both our team size and our global user base.Our System Department is dedicated to enhancing device intelligence, transforming them into fully-fledged IoT solutions. We have developed and continue to enhance the Malevich OS (a modular RTOS for various hardware platforms) and the Ajax Cloud service (Java 20 / Kotlin, AWS, Akka, NATS, Kafka, Mongo, MySQL). To facilitate system management, maintenance, and monitoring, we have created applications for iOS (Objective-C, Swift), Android (Java, Kotlin), and Windows/macOS (Python / C++, QT, QML).We are on the lookout for a Senior C++ Developer to join our AI team. In this pivotal role, you will empower our entire range of video devices to not only capture images but also to discern specific objects within the frame, track their movement and behavior, and recognize events and individuals.Your mission will involve integrating various types of computer vision analytics into our cameras, doorbells, and NVRs, taking into account the unique resource constraints of each device. You will also ensure seamless device integration with each other and with the cloud. Beyond implementing new functionalities, there will always be opportunities to enhance existing features by bringing your innovative ideas to pre- and post-processing stages.This role requires close collaboration with ML engineers, business analysts, cloud developers, and application developers, providing you with a fantastic opportunity to advance both your communication skills and technical expertise.

Role Overview Sigma Software Group is hiring a Solution Architect for Power Platform in Kyiv. This position focuses on designing and implementing scalable applications with Microsoft technologies, especially within the Power Platform suite. What You Will Do Design and build applications that meet business needs using Power Platform tools. Optimize workflows to improve efficiency and user experience. Work closely with teams across functions to gather requirements and translate them into technical solutions. Support digital transformation projects for clients. Who We’re Looking For Strong experience with Microsoft Power Platform and related technologies. Ability to design scalable, maintainable solutions. Skilled at collaborating with technical and non-technical colleagues. Comfortable identifying business requirements and turning them into actionable plans.

Join a forward-thinking team at Superhuman, offering a hybrid work model for this internship. This flexible structure allows team members to enjoy focused work while also collaborating in person, promoting trust, innovation, and a robust team culture.Interns must be based in Ukraine and can work remotely, with opportunities to gather in our Kyiv office throughout the internship.About SuperhumanGrammarly is now part of Superhuman, an AI productivity platform dedicated to unlocking extraordinary potential in everyone. The Superhuman ecosystem integrates with over 1 million applications and websites, delivering tools like Grammarly’s writing assistant, Coda’s collaborative workspaces, Mail’s inbox management, and Go, the AI assistant that anticipates needs and provides contextual help. Established in 2009, Superhuman serves over 40 million individuals, 50,000 organizations, and 3,000 educational institutions globally, helping them eliminate busywork and concentrate on what truly matters. Discover more at superhuman.com and learn about our values here.The OpportunityAs we pursue our ambitious objectives, we seek Software Engineering Interns to join our Engineering team for a three-month period during the summer of 2026 (June 23 - September 11, 2026). Interns will engage in diverse projects across front-end, back-end, full-stack, and mobile engineering. In this role, you will face exciting technical challenges and gain valuable experience delivering features to millions of users.Our engineers and researchers enjoy the freedom to innovate and drive significant advancements, influencing our product roadmap. As we grow, the complexity of our technical challenges is rapidly increasing, covering our interfaces, algorithms, and infrastructure. Explore more insights from our team on our technical blog.As a Software Engineering Intern, you will be instrumental in overcoming Superhuman’s key Engineering challenges. Responsibilities include:Contributing to an end-to-end Engineering project aligned with your team’s strategic objectives.Delivering code within your first few weeks.Adapting swiftly in a dynamic environment and offering your unique insights to enhance product direction.

At AppsFlyer, we place data at the core of our operations, processing over 150 billion events daily, and we’re rapidly expanding. Our dedicated team builds the essential frameworks that support this growth. Unlike conventional Data Engineering teams, we function as a Software Development team, creating internal services and tools for Data Engineers and other Software Development teams. We are at the forefront of transitioning from a Data Lake to a Data Mesh architecture, providing: Massive-scale data ingestion services Data operations within a Mesh architecture Tools that empower other teams to create reliable, cost-effective, and high-performing data pipelines By working at the intersection of Software Engineering, Data Engineering, and DevOps, we design, build, and maintain the core services that drive AppsFlyer’s data ecosystem.

Role overview Wix.com Ltd. seeks an AI-Native Software Engineer for its Kyiv office. The position centers on building and refining AI technologies that power the Wix platform and serve a global audience. What you will do Build and integrate AI-driven features within Wix products Collaborate with engineers and specialists to deliver reliable solutions Take part in projects that shape the future of web development at Wix Team and culture Work alongside experienced professionals who value practical problem-solving and new ideas. The team supports open communication and shared learning to strengthen both the platform and each member’s skills.

Join our dynamic team at Sigma Software Group as a Senior TypeScript/Node.js Developer, where you'll play a pivotal role in the development of an innovative advertising platform tailored for the Swedish market. You'll work with cutting-edge technologies to build scalable, high-performance applications while collaborating with a talented team of professionals. Your expertise will help shape the future of digital advertising.

Join us at Superhuman, where we embrace a vibrant hybrid work model that balances focused individual work with collaborative in-person sessions. This unique approach cultivates trust, sparks innovation, and strengthens our team culture.About SuperhumanSuperhuman, the parent company of Grammarly, is an AI-driven productivity platform dedicated to unlocking everyone's superhuman potential. We integrate AI seamlessly into the tools people already use, connecting with over 1 million applications and websites. Our product suite includes Grammarly's writing assistance, Coda's collaborative workspaces, Mail's inbox management, and Go, our proactive AI assistant that understands context and provides automatic help. Since our founding in 2009, Superhuman has empowered over 40 million users across 50,000 organizations and 3,000 educational institutions worldwide, helping them eliminate busywork and concentrate on what truly matters. Discover more at superhuman.com and explore our values here.The OpportunityTo meet our ambitious objectives, we are seeking talented Full-Stack Software Engineers to be a part of our engineering teams.As an engineer at Superhuman, you will have the freedom to innovate and drive breakthroughs that will influence our product roadmap. Our technical challenges are evolving rapidly as we scale our interfaces, algorithms, and infrastructure. For more insights, check out our technical blog.In this role, you will take on a pivotal position in enhancing user acquisition and conversion. You will develop innovative features and infrastructure that highlight our product's value, encouraging millions of users to make Superhuman their indispensable writing companion. We welcome you to share your knowledge, experiences, and aspirations with us to ensure the best fit for our team. What is your superpower?Your responsibilities will include:Commencing code development and deployment in your first week, delivering impactful features within your initial months.Building and maintaining production services with high activity on the back-end while crafting rich user interfaces on the front-end.Aiming for high availability for both consumer and enterprise customers.Gaining expertise in infrastructure as code (IaC).Collaborating with internal teams such as Core, Enterprise, Trust, and Data to create delightful user experiences.

Important: This position requires relocation to our Milan office.About SatispaySatispay is on a mission to transform everyday payments, making them simple, equitable, and accessible for everyone. Our vision extends beyond the present as we strive to shape the future of financial transactions.We are a movement that empowers millions, united by a common goal to confront significant challenges. Our agile approach allows us to innovate rapidly, think creatively, and learn collaboratively as we push boundaries.If you seek to make a meaningful impact alongside a talented team, you have come to the right place.Key ResponsibilitiesAs a Senior Backend Software Engineer within the Business Team, you will significantly influence the future of digital welfare payments. Your responsibilities will encompass everything from employer benefits to sophisticated products, supporting the entire journey for both employers and employees to ensure lasting satisfaction. You will guide the technical direction, maintain quality, and ensure the timely delivery of complex systems that enable numerous employers to manage their corporate welfare efficiently. Here’s what you can expect in your daily tasks:Develop Multi-Service Solutions: Conduct thorough technical analyses for medium-to-large projects affecting various services in the Employer domain. Design comprehensive, highly available solutions, emphasizing scalability, security, and maintainability for products central to welfare.Guarantee Technical Quality: Implement strong testing strategies, balancing both automated and manual coverage while managing gradual rollouts with vigilant monitoring to ensure precise welfare distributions.Identify and Resolve Blockers: Proactively foresee and address technical obstacles, promoting knowledge sharing throughout the organization. Tackle the unique challenges posed by B2B registration workflows and high-volume benefit allocations while ensuring code quality through active reviews.Take Ownership: Own your projects from inception to completion, delivering features that genuinely address user needs—from the moment an employer signs up to when an employee utilizes their welfare benefits—through seamless and efficient back-end integration.

Join our dynamic team in Kyiv, Ukraine, where you will work full-time in our modern office. We provide a convenient shuttle service from the nearest metro station for your ease.About the RoleAs a Senior Embedded Software Engineer, you'll play a pivotal role within our Architecture team, focusing on the development and implementation of essential features that enable our drones to operate safely and autonomously in the skies. Collaborating with our elite team of seven members, you'll push the boundaries of drone technology while working closely with stakeholders in Germany and the US across System Architecture and Hardware Development.Your Daily Responsibilities:Develop, maintain, and optimize the Quantum-Systems autopilot firmware and its associated stack.Design, conceptualize, implement, and test new autopilot functionalities.Export flight control and navigation algorithms from MATLAB/Simulink and integrate them into the autopilot's embedded framework.Implement, maintain, and optimize BSP/peripheral and external sensor drivers for real-time operating systems.Document and maintain autopilot firmware for flight tests, including creating flight test tickets, supporting flight tests, and analyzing post-flight data.Create unit tests and debug/troubleshoot the codebase to ensure comprehensive code coverage and functionality testing.Oversee the firmware update ecosystem, including bootloaders and firmware updates.Assist in the implementation and maintenance of production tools.

Our Mission and VisionAt Solidgate, we are dedicated to empowering exceptional entrepreneurs to create outstanding internet companies. Our goal is to support the builders of the digital economy with the financial infrastructure they truly deserve. We are on an ambitious journey to become the world's leading payments orchestration platform.About the Team and RoleAs a Node.js Engineer on the Launch Team, you will be instrumental in powering the backend for Digital Onboarding. Your primary mission will be to ensure that Solidgate collaborates with compliant merchants while delivering a fast, seamless, and scalable onboarding experience.Your challenge will be to construct the quickest path from “I’m interested” to “I’m live.”What Makes This Role UniqueYou will significantly decrease Time-to-Live, positively influencing growth.You will help define the evolving Node.js stack (free from legacy constraints).You will design robust, durable, and scalable systems that target an impressive 99.99% uptime.You’ll harness AI to expedite shipping and integrate AI-driven features into our products.Technology StackOur Launch Team is at the forefront of Solidgate's Node.js stack development. We not only implement tools but also establish the standards, practices, and engineering culture that other teams aspire to follow. Currently, we utilize:Fastify - a lightweight, high-performance web servergRPC + Protobuf - for typed service-to-service communicationPostgreSQL + Drizzle ORM - a reliable data layer with a modern query builderKafka (@platformatic/kafka) - for streaming-first, event-driven architectureVitest - for unit and functional testingWe also implement custom solutions, including distributed locks, metrics, streamers, and more. Discover our complete technology stack here.The tech stack is continuously evolving, providing real influence without any legacy baggage, just modern Node.js supported by mature architectural principles inspired by the Golang ecosystem.Your ResponsibilitiesDevelop and maintain backend services for a seamless onboarding process.Collaborate with cross-functional teams to ensure high-quality deliverables.Optimize application performance and reliability.Leverage modern development practices and tools to enhance efficiency.

Speechify seeks an iOS Core Product Software Engineer based in Kyiv, Ukraine. The position centers on creating and refining iOS applications that support users in reading more easily and effectively. Teamwork is a key part of the day-to-day, with frequent collaboration across different specialties. Role overview This engineer will play a direct role in shaping the core iOS experience for Speechify’s users. The work involves both building new features and enhancing existing ones, always with a focus on reliability and usability. What you will do Design, develop, and test new features for Speechify’s iOS apps Work with cross-functional teams to deliver reliable software Contribute to the deployment of high-quality solutions for a global user base

Join our innovative team at Sigma Software Group as a Data Engineer! In this dynamic role, you will leverage your expertise in data architecture and engineering to design and implement robust data solutions that drive informed decision-making across various projects.As a Data Engineer, you will collaborate with cross-functional teams to understand data requirements, develop data pipelines, and ensure data integrity and accessibility. Your work will empower stakeholders to derive valuable insights and contribute to the overall success of our projects.