Senior Next.js Full Stack Engineer

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 ha…

Join SKELAR, a pioneering venture builder that crafts international tech businesses. Collaborating with co-founders, we assemble high-performing teams to excel in global markets.Currently, SKELAR boasts a diverse portfolio of businesses across various niches, from EdTech to marketplaces. Our companies consistently rank among the top startups and product firms in Ukraine, achieving high standings in the App Store and developing platforms used by millions. Our innovations have been featured in renowned media outlets such as TechCrunch and Wired.People are our core value. We unite passionate talents who inspire those around them with their drive and determination. We believe that the right environment is crucial, which is why we aim to create the best workplace in Ukraine.We are seeking a Junior Full-Stack Engineer to join us in building modern, intelligent, and adaptable products that will serve as the backbone of our internal processes and help accelerate our growth. This role offers a developer the chance to make a significant impact on product development and witness tangible results from their contributions.We operate like a startup within a company: rapidly testing ideas, engaging extensively with users, and continuously searching for improvement opportunities.Our team is currently expanding as we launch new services, restructure our architecture for scalability, and incorporate AI functionalities that unlock numerous new possibilities.

Join our dynamic team as a Junior Full Stack Developer specializing in telecommunications! In this role, you will contribute to exciting projects, collaborate with experienced developers, and enhance your skills in both front-end and back-end development. You will work with modern technologies, participate in code reviews, and help create innovative solutions that impact our clients.

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.

N-iX brings together over 2,400 technology professionals across more than 40 countries. Since 2002, the company has delivered solutions in cloud computing, data analytics, AI, embedded software, and IoT for a range of clients, including industry leaders and Fortune 500 companies. This role supports a client operating Europe's largest online car marketplace, which serves over 30 million users each month in 18 countries. The client is developing a new Agentic Software Delivery platform to automate engineering tasks at scale. The initial priority is automating the software development life cycle (SDLC), aiming for 10–20% of JIRA stories to move through the autonomous delivery system within a year. Future plans include expanding the platform's capabilities. Role overview N-iX is looking for a Lead or Senior Full-Stack Software Engineer with a strong background in AI. The position calls for someone proactive and self-motivated, who can navigate ambiguity and take initiative without waiting for detailed instructions. Ownership and independent progress are key traits for success in this role. What you will do Design and build features for the Agentic Software Delivery platform, focusing on AI-powered automation. Work with internal delivery teams (about 10% of your time) to understand their workflows, identify pain points in the SDLC, and share feedback to improve the platform. This includes technical discovery and direct developer conversations. Support the rollout of the platform by mentoring others and helping teams adopt and use the new tools effectively. Who succeeds here Engineers who are comfortable with minimal direction and enjoy shaping projects in evolving environments. Those who bring technical curiosity, strong communication skills, and a willingness to learn from peers. Location This position is open to candidates based in Europe or Ukraine.

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.

We are seeking a talented Senior Full-Stack .NET Engineer who thrives in fast-paced environments and can adapt to continuous business transformations. The ideal candidate will navigate shifting requirements, evolving strategies, and the integration of emerging technologies. About the Client: Established in 1948, Fluke Corporation is a prominent US-based company employing over 2,500 personnel. Renowned as a global leader in compact, professional electronic testing tools and software solutions for measurement and condition monitoring, Fluke plays a pivotal role in various industries. We are partnering to create solutions for mobile operations, control, and maintenance of automated systems. Our products are crucial in sectors where minimizing downtime is vital, including airports, warehouses, distribution centers, manufacturing operations, power plants, water treatment facilities, and renewable energy farms. Our solutions are utilized by industry leaders such as Honda North America, Toyota UK, Volkswagen, Boston Logan Airport, and numerous airports across Europe. X5 eMaint is a state-of-the-art CMMS software designed to centralize maintenance data, streamline processes, and automate tasks, enhancing operational efficiency. This software optimizes the utilization, availability, and lifespan of equipment, machinery, fleets, and facilities.

Location: Fully RemoteStart Date: As Soon As PossibleLanguages Required: EnglishAbout the RoleJoin pragmatike as a Lead Full Stack Engineer for a dynamic and rapidly expanding AI and trading startup. We are creating an innovative orchestration protocol that seamlessly integrates various trading dimensions into a single, AI-driven platform, empowering users to trade effortlessly across both crypto and traditional financial markets.Our groundbreaking technology leverages autonomous AI agents that operate around the clock, eliminating emotional biases and enhancing trade execution efficiency. Having successfully managed over $500,000 in assets during our beta phase, we are poised for significant growth as we scale our platform to support a multitude of agents across diverse trading environments.We seek a Senior Full Stack Engineer (React / Node / Next.js) to enhance and expand our product experience and core application as we transition from initial traction to institutional-scale operations.Your ResponsibilitiesDesign and implement scalable, production-ready web applications utilizing React and Next.js.Develop reliable backend services and APIs through Node.js.Architect comprehensive features spanning frontend, backend, and database layers.Create real-time dashboards for monitoring trading performance, agent activity, and analytics.Establish secure authentication, authorization, and role-based access management systems.Enhance frontend performance, user experience, and state management.Collaborate closely with AI, backend, and infrastructure teams to integrate trading agents and execution systems.Maintain code quality through rigorous testing, CI/CD practices, and adherence to engineering best practices.Contribute to architectural strategy and long-term product scalability initiatives.Influence product direction in a fast-paced, high-ownership environment.QualificationsA minimum of 5 years of experience in Full Stack Engineering.Proficient in React and Next.js (SSR, routing, performance optimization).Strong backend development skills with Node.js.Experience designing and consuming REST or WebSocket APIs.

Superhuman, part of Grammarly, builds AI productivity tools used by over 40 million people in 50,000 organizations worldwide. The platform integrates with a wide range of applications, offering features such as advanced writing assistance, collaborative workspaces, and a proactive AI assistant. Founded in 2009, Superhuman focuses on helping users minimize busywork and concentrate on what matters most. More details about the company and its values can be found at superhuman.com and the Superhuman values page. This Full-Stack Software Engineer role is open to candidates based in Ukraine and is fully remote. Superhuman supports a hybrid work model, combining focused remote work with opportunities for in-person collaboration to foster trust and innovation. Role overview Full-Stack Engineers at Superhuman play a key role in building features and infrastructure that drive user growth and highlight the platform’s value. The work involves both front-end and back-end development, supporting a product that serves a large and diverse user base. Engineers are encouraged to contribute ideas and experience, helping shape the team and product direction. For more on Superhuman’s technical work, visit the engineering blog. What you will do Start coding and shipping production-ready features within your first week, aiming to deliver impactful results in the first few months. Develop and maintain back-end services that handle high call volumes, as well as create engaging front-end user interfaces. Support high availability for both consumer and enterprise customers. Build expertise in infrastructure as code (IaC) practices. Superhuman values engineers who bring their unique strengths to the team and encourages sharing insights and aspirations to ensure a strong fit.

Join Universe Group, the innovators behind an ambitious AI-first web product in the visual content generation and editing space. As we transition into a phase of rapid scaling, we are on the lookout for a talented Full-Stack Developer to tackle architectural challenges and implement cutting-edge technologies into our product.Your future team includes: CEO, Full Stack Developer, Product Designer, PPC Specialist, Growth Product Manager, Product Manager, Data Analyst.Technology stack you will work with: React.js, Node.js, Nest.js, TypeScript, Redux, PostgreSQL, MongoDB, Redis, AWS, Kubernetes.Why you should join us:Collaborate closely with Ruslan — an experienced CEO with a proven track record. His previous startup, Eventmate, quadrupled its revenue within a year, secured $150K in investments (including from Google), and expanded into international markets including Europe and Brazil.Impact on business development — As a core team member, you will play an essential role in shaping the product while delving into architectural solutions and integrating the latest technologies into a product built from the ground up.A team of like-minded professionals — You will work alongside motivated individuals who support one another. We closely collaborate with technical teams across other businesses within the Universe Group, sharing insights and expertise.Opportunities for professional and career growth. We believe that the success of our business depends on the motivation and potential of each team member, so we continually invest in learning and development. You will also have the chance to advance to the Tech Lead position and contribute to team expansion and mentorship of junior specialists.Your future tasks will include:Defining and developing the product architecture, including technology selection, project structuring, and building scalable infrastructure to support a large number of users.Developing and maintaining...

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.

Risora, part of skelar, is seeking a Full-Stack Engineer with strong experience in Node.js and TypeScript. This role is based in Kyiv and centers on building and maintaining web applications and services. Role overview This position involves working on both the backend and frontend, using Node.js and TypeScript as the primary technologies. Collaboration is a key part of the job, with a focus on delivering features that improve the user experience. What you will do Develop and support web applications and related services using Node.js and TypeScript Work closely with team members to deliver new features Share ideas and contribute to collaborative problem-solving Requirements Hands-on experience with Node.js and TypeScript in a full-stack setting Interest in creating user-focused web applications Enjoys teamwork and knowledge sharing

N-iX is seeking a talented Senior Full Stack Software Engineer to become a vital member of our rapidly expanding team working on an innovative Online Learning Platform.Key Responsibilities:Architect, develop, and sustain high-performance web applications utilizing C# and Vue.js.Engage with product and engineering management, stakeholders, and cross-functional teams to define, prioritize, and implement valuable features for our users.Produce clean, maintainable, and testable code.Guide and mentor junior developers on coding standards, architectural principles, and industry best practices.

Join Innovecs as a Senior Full-Stack Engineer and be part of a global digital services leader specializing in cutting-edge software solutions. At Innovecs, we leverage our expertise across various industries including Supply Chain, Healthtech, Collaboration Tech, and Gaming to deliver exceptional results.As a rapidly growing company recognized in the Inc. 5000 list and a recipient of multiple prestigious awards, we foster a culture of innovation and employee engagement. Our open-door policy ensures transparent communication and accessibility to top management, making us a workplace where your voice matters.

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.

Join Simulmedia as a Senior Full Stack Engineer and play a vital role in enhancing our engineering team as we expand our platform and introduce cutting-edge insights and analytics features within our innovative products. Our technical roadmap emphasizes platform unification, presenting the exciting opportunity to modernize our existing enterprise product into a cohesive, state-of-the-art technology stack. This role, featuring a focused 30/70 backend-to-frontend allocation, requires close collaboration with product managers, designers, and data engineers to ensure the seamless incorporation of analytics functionalities into our platform. Your ability to quickly iterate and deliver high-quality features that you own from start to finish will be essential. Location: Candidates must be based in Ukraine. Our offices are located in Kyiv and Lviv, and our teams primarily work remotely, with occasional in-person meetings.

Mid-Level Front-End Engineer (Full-stack Oriented) About the Role Join Matic's dynamic team as a Mid-Level Front-End Engineer with a Full-stack perspective. Matic is rapidly evolving, developing innovative web products from the ground up to simplify insurance processes for homeowners across the United States. In this position, you will go beyond merely coding mockups. You will take charge of the user interface and the engineering logic that underpins it. We prioritize meticulous attention to detail, whether it's creating a reusable component library or enhancing the state management of a complex multi-step insurance application. While your primary focus will be on the Front End, we encourage you to explore the full stack, utilizing AI tools to engage with the backend and ensure seamless delivery of features from start to finish. We appreciate engineers who embrace the latest technologies to bridge gaps and expedite our development process.

About Guru Apps and Universe Group Guru Apps, part of Universe Group, builds a suite of mobile applications for iOS. Our portfolio includes Scan Guru, Translator Guru, Cleaner Guru, Assist Guru, and Visify. With over 90 million downloads across 180 countries and a 4.6 average App Store rating, our products reach users worldwide. Cleaner Guru is a top performer in its category. Curious about our rapid approach to launching and scaling apps? Watch our video about Guru Apps for a behind-the-scenes look. Role Overview: Mid-Level Full-Stack Engineer (R&D) This role centers on hands-on product experimentation within our R&D team. Engineers here work closely with product managers, designers, and fellow developers. Expect to contribute to the entire product lifecycle, from idea to launch, with direct communication and minimal management overhead. Key Responsibilities Build and improve internal products, both new and existing. Develop MVPs quickly (from zero to launch), always keeping business goals in mind. Work across the stack using React, Node.js/NestJS, and TypeScript. Apply AI tools and techniques in both development and the products themselves. Our Tech Stack Backend: NestJS, Node.js, Go Frontend: React.js, TanStack, Tailwind Infrastructure: AWS, Postgres, Redis, GitHub Actions Languages: TypeScript, Go Location This position is based in Kyiv.

Join our dynamic team at supportyourapp, a leading Ukrainian IT company, dedicated to crafting innovative desktop applications for macOS and iOS. With 15 outstanding products under our belt, we specialize in enhancing user experiences through file sharing, music and video conversion, copyright-free image downloads, and optimizing computer performance by freeing up RAM.As a Full-Stack Web Engineer, you will play a pivotal role in managing our company’s website, driving the development of new features around trials, checkout processes, and product launches. You will work closely with our product and marketing teams to ensure swift delivery of enhancements while maintaining the integrity of our existing architecture.Technical Stack:Frontend: SvelteKit, Vue.js, TailwindCSSBackend: Node.js, Go, PHPInfrastructure: Docker, S3, Cloudflare