Senior Frontend Engineer for AI-Driven Applications

nix seeks a Senior Frontend Engineer to help build web applications that use AI and machine learning. The team develops platforms that streamline workflows such as content generation, validation, analysis, and transformation. Role overview This role centers on designing and maintaining frontend features for AI-powered platforms. The work involves creating interfaces that make it easier for users to interact with advanced AI tools. What you will do Develop and maintain frontend features for platforms that use AI and machine learning Design user interfaces that simplify interaction with complex AI tools Collaborate with engineers and product teams to deliver scalable, intuitive, and user-friendly web experiences Location This position is based in Ukraine.

Innovecs is seeking talented Senior Backend Engineers (AI-Driven) to join our dynamic team, dedicated to enhancing our B2B and B2C warehouse management ecosystem. The ideal candidate will be an AI-Native Software Engineer, skilled in not only coding but also in orchestrating AI agents and assistants to optimize the Software Development Life Cycle (SDLC). You will play a pivotal role in delivering robust, scalable microservices at speeds that traditional development practices cannot achieve.

Join the AI Creation Team, an integral component of Wix Harmony—Wix’s innovative AI-powered website builder. Our team is dedicated to developing the core functionalities that empower AI to craft real websites.Your Day-to-Day Responsibilities:Develop high-quality, scalable applications using React and TypeScript.Design and implement new features through the entire lifecycle, from concept to deployment.Review code contributions and uphold high engineering standards.Collaborate closely with product managers, designers, and engineers to launch AI-driven products.Tackle challenging tasks spanning both frontend and backend (Node.js).Engage in technical discussions, architectural decisions, and continuous improvements.

Join our innovative AI Creation Team at Wix Harmony, the forefront of Wix's AI-driven website development. We are dedicated to crafting the essential elements that empower AI to construct real, functional websites.Your Role:Develop high-quality and scalable code using React and TypeScript.Design and implement new features from conceptualization to production.Review code changes and uphold rigorous engineering standards.Collaborate effectively with product managers, designers, and other engineers to deliver AI-enhanced products.Tackle complex challenges in both frontend and backend (Node.js) development.Engage in technical discussions, make architectural decisions, and contribute to continuous improvement initiatives.

Role overview Vacancies seeks a Senior Frontend Developer in Kyiv to help grow our product team. This position focuses on expanding development capacity and improving the quality and scalability of our frontend architecture. The team values developers who bring strong Vue experience, care about clean code, and approach design thoughtfully. What you will do Work closely with the team to deliver new product features Refactor and improve existing frontend codebases Boost product performance and scalability Share ideas to enhance both code and workflow Own tasks and ensure they are completed Who thrives here Developers with deep Vue expertise People who show initiative and ownership Those who care about clean, maintainable architecture Individuals able to work independently and move projects forward without sacrificing quality The product Since 2020, the team has built a global platform connecting people across backgrounds, religions, and cultures. Over 1 million visitors use the site each month, with users from the USA, Australia, and other countries. The platform ranks among the top 5 in its category, recognized for high-quality video and a seamless experience even during peak traffic, maintaining 99.99% uptime. The product is ad-free, focusing on genuine connections supported by advanced UX/UI. Features include AI-powered content moderation, strong data protection, and tools for building authentic global relationships. The next milestone: reaching the top 3 among international web-based social networking services.

Role overview Speechify seeks a Senior Software Engineer to focus on Windows and desktop applications. This role is based in Kyiv, Ukraine. The position centers on building software that helps users interact with technology in meaningful ways. What you will do Design and develop applications for Windows and other desktop platforms Create solutions that deliver a smooth and dependable user experience Work on improving performance and optimizing applications Help build features that influence how people use technology in daily life

Role overview Speechify is looking for a Senior Software Engineer to focus on Windows and desktop applications in Dnipro, Ukraine. The work centers on developing software that helps users in practical ways. Daily tasks involve close collaboration with design, product, and engineering teams. What you will do Design, build, and maintain desktop applications for Windows Work with teams across different functions to deliver reliable and user-friendly products Share ideas and technical expertise to improve the user experience

Join our team at Progressoft as a Senior AI Engineer, where your passion for transforming data into intelligent, production-ready solutions will thrive. In this remote role, you will engage with the entire AI stack, from classical machine-learning models to cutting-edge large language models (LLMs), computer vision pipelines, and analytics/forecasting workflows. If you are enthusiastic about data exploration, model development, and delivering reliable AI services, we are eager to connect with you.Key ResponsibilitiesModel Development: Design, train, fine-tune, and assess models across various methodologies including classical ML, deep learning (CNNs, transformers), and generative AI (LLMs, diffusion).Data Exploration & Analytics: Perform exploratory data analysis, statistical testing, and forecasting to guide feature development and business KPIs.End-to-End Pipelines: Create reproducible workflows for data ingestion, feature engineering, training, CI/CD, and automated monitoring.LLM & Agentic AI Engineering: Develop prompts and retrieval-augmented generation (RAG) pipelines; fine-tune LLMs on specialized datasets to enhance accuracy and meet product specifications.AI Automation & Integration: Deploy AI components as micro-services; integrate with orchestration tools (Airflow, Prefect) and business APIs to streamline decision-making processes.Continuous Learning: Stay updated on advancements in LLMs, vision, and analytics; share knowledge and best practices with the engineering team.Mentorship: Provide guidance to junior engineers and contribute to shaping technical direction and engineering excellence.

Join Restream as a Senior Frontend Software Engineer and take the lead in overcoming intricate challenges while crafting outstanding products. In this role, you will develop new functionalities, enhance the user interface of our platform, and boost the reliability of our systems as we expand. Collaboration is key; you will work alongside a team of dedicated engineers to refine processes and elevate user-facing features. You appreciate the significance of simplicity and dependability, evaluating the impact of every decision you make. We value small teams where each individual plays a pivotal role.Your ResponsibilitiesCreate visually appealing interfaces and interactions within Restream web services.Design and implement the UI and business logic necessary to support both new and existing features.Collaborate with a product designer to develop an exceptional and user-friendly UI/UX.Participate in code reviews, providing and receiving constructive feedback with team members.Stay updated on emerging technologies and uncover hidden opportunities within our ecosystem.What We SeekA dynamic, entrepreneurial spirit that drives high-quality projects to completion swiftly.A strong design sensibility, meticulous attention to detail, and a commitment to delivering an excellent user experience.Proficiency in JavaScript, TypeScript, and the latest ECMAScript specifications (experience with additional programming languages is advantageous).Expertise in React and its primary state management frameworks.Experience with CSS preprocessors such as LESS or SASS.Basic backend skills: Node.JS, building REST APIs, and working with relational or NoSQL databases.Familiarity with TypeScript, MobX, AWS, Linux, Docker, Kubernetes, and continuous deployment workflows.Excellent written and verbal communication capabilities.Self-motivated, analytical, and adept at thriving in a collaborative environment.Founded in 2015, Restream emerged from Ukraine with a passionate mission to empower creators to amplify their voices. As the leading multistreaming solution, Restream inspires over 10 million content creators globally, enabling them to reach wider audiences and enhance their online presence.

At Restream, we are searching for a skilled Senior Frontend Engineer to join our dynamic team in tackling complex challenges and creating top-tier products. In this pivotal role, you will be instrumental in developing new features, enhancing the user interface of our platform, and ensuring the reliability of our systems as we expand. You will work closely with a talented group of Engineers, driving processes and improving user-facing features. Your understanding of simplicity and reliability will guide your decisions, as each choice you make carries significant impact. We value small teams where every member plays a crucial role.Your ResponsibilitiesCreate visually appealing interfaces and interactions within Restream’s web services.Design and implement the UI and business logic required to support both new and existing features.Collaborate with product designers to develop exceptional and user-friendly UI/UX.Engage in code reviews, providing and receiving constructive feedback with the team.Stay abreast of emerging technologies and uncover potential opportunities within our environment.Desired QualificationsA proactive, entrepreneurial mindset that drives high-quality project delivery.Solid design sensibility, meticulous attention to detail, and a commitment to delivering an outstanding user experience.Proficient in JavaScript, TypeScript, and the latest ECMAScript specifications (experience with additional programming languages is advantageous).Deep expertise in React and its primary state management systems.Experience with CSS preprocessors such as LESS or SASS.Basic backend competencies: Node.JS, REST API development, and familiarity with relational or NoSQL databases.Comfortable with TypeScript, MobX, AWS, Linux, Docker, Kubernetes, and continuous deployment workflows.Strong verbal and written communication skills.Self-motivated, analytical, and effective within a team setting.Founded in 2015, Restream emerged from Ukraine with a passion for empowering creators to be seen and heard. As the leading multistreaming solution, we inspire over 10 million creators worldwide.

Role overview Miratech seeks a Senior Frontend Engineer in Kyiv with deep experience in React and design systems. The position centers on building scalable, user-focused web applications and strengthening design systems to ensure consistency throughout Miratech’s products. What you will do Collaborate with cross-functional teams to launch new features and refine existing ones Develop and maintain applications using React Enhance design systems to create a unified user experience across products Support projects at every stage, from initial concept to final implementation Location This is an on-site role based in Kyiv.

Our Mission and VisionAt Solidgate, we are dedicated to empowering visionary entrepreneurs in building exceptional internet companies. Our goal is to provide the financial infrastructure necessary for these innovators to thrive in the digital economy. We aim to establish ourselves as the leading payments orchestration platform globally.About the Team and RoleWe are seeking a talented Frontend Engineer to join our dynamic Finance Engineering team. This team is responsible for developing a robust finance system, essentially a powerful calculator that ensures the accurate and timely processing of payments for our merchants. With over 18 million payments processed monthly, your work will directly influence automated payouts and financial reporting.Why This Could Be Your Next Big MoveMeaningful Impact: Contribute to a mission-critical platform that shapes the financial landscape of our services.Collaboration with Industry Experts: Work alongside engineers with experience from Amazon, Revolut, Wix, and other leading companies.Autonomy and Ownership: Take full ownership of your projects from inception to deployment, allowing you to witness the direct impact of your contributions.AI-Enhanced Development: We prioritize developer productivity by providing tools like GitHub Copilot, Windsurf/Cursor, and Coderabbit to streamline your coding process and reduce repetitive tasks.Why Now is the Ideal Time to Join UsWe are building a next-generation financial system from the ground up, focusing on modular and transparent fee calculations while laying the groundwork for future financial modules.Explore our technology stack here.Your ResponsibilitiesEnhance the platform: Develop frontend solutions for new financial configurations, supporting various contract types and commission models.

About UsAt Ruby Labs, we pride ourselves on being a pioneering tech firm dedicated to the development and management of cutting-edge consumer products. Our team is passionate about creating impactful solutions in the health, education, and entertainment sectors, and we are continually seeking enthusiastic individuals to become part of our innovative journey. Discover more about our mission and vision at: https://rubylabs.com/about-us/About the RoleWe are on the lookout for a CRO Manager to enhance the optimization of our reverse lookup products. This position is perfect for an individual equipped with a strong background in conversion rate optimization who is eager to expand their expertise while collaborating with seasoned growth leaders.The ideal candidate will possess an AI-driven mindset, adept at integrating structured experimentation, product analytics, and contemporary AI tools to elevate performance across our user funnels, thereby contributing to sustainable product growth.You will uncover optimization opportunities, design and execute experiments, and utilize AI-driven insights to refine user experiences, boost conversion rates, and bolster overall product performance.Partnering closely with the Senior Growth Manager, you will oversee all phases of the CRO process—from research and hypothesis formulation to testing, analysis, and rollout—emphasizing quality execution, organization, and continuous learning.This role demands a proactive approach; you will actively engage in experiments, ensure their precise implementation, and translate insights into tangible improvements.

Role overview nix is hiring a Senior AI Engineer based in Europe or Ukraine. This role focuses on building and improving AI-driven products. The Senior AI Engineer works closely with colleagues from different disciplines to design, develop, and implement advanced AI models. The position plays a key part in shaping technical solutions that support and expand nix’s product lineup.

Join our dynamic team as a Staff Application Engineer where you will have the opportunity to leverage your technical expertise in a collaborative environment. Contribute to the development and enhancement of innovative applications that drive the success of our advanced semiconductor solutions. Your role will be pivotal in providing technical support and guidance to clients, ensuring a seamless integration of our products into their systems.

Join our dynamic team as a Frontend Engineer at Wix Editor, where you will collaborate with over 1,000 skilled developers in our frontend community. You will play a vital role in managing the technical aspects of various projects, ensuring they are feasible during the discovery phase, and delivering features efficiently to production. Your contributions will help enhance our solutions throughout the development process. By partnering with product managers, designers, fellow developers, and QA specialists, you will help design innovative and scalable solutions that elevate the user experience.In your daily tasks, you will:Oversee the technical execution of projectsEngage in code reviews and pair programming to enhance code qualityBring features to life through implementation and developmentCollaborate and share knowledge across different teamsIdentify and address technical debt related to featuresParticipate in the technical design, rollout, and support of features post-production

Join our dynamic team at wix2 as a Frontend Engineer. In this pivotal role, you will leverage your skills in modern web technologies to create visually appealing and highly functional user interfaces. You will collaborate closely with designers and backend engineers to deliver seamless web experiences that delight our users.

Join Eleks as a Senior AI Engineer and spearhead cutting-edge Proof of Concept (PoC) projects that redefine the future of technology. In this role, you will leverage your expertise in artificial intelligence to design, develop, and implement innovative solutions that address complex business challenges.As a remote team member, you will collaborate with a dynamic group of professionals who are passionate about technology and innovation. You will play a crucial role in shaping our AI strategies and ensuring the successful delivery of our projects.

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

We are on the lookout for an accomplished and innovative Lead Backend Engineer (AI-Driven Lifecycle Expert) to join our dynamic team.In this pivotal role, you will lead a newly established high-performance engineering team comprising 6-8 skilled professionals, including Senior Frontend and Backend Engineers. As a reliable leader, you will be accountable for the success of projects and the professional growth of your team members. Your role extends beyond conventional leadership; you will advocate for the adoption of AI-Driven Lifecycle (AIDLC) practices, ensuring that your team leverages AI tools throughout the development process to significantly enhance delivery speed.