Middle Strong/Senior Full-Stack (.Net+React) Developer

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 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.

Superhuman Platform Inc. is seeking Back-End Software Engineers based in Ukraine to join our remote team. This role focuses on building and maintaining the core infrastructure and features that support millions of users each day. Superhuman, now part of Grammarly, develops an AI-powered productivity platform used by over 40 million individuals and thousands of organizations worldwide. Our tools integrate with a vast range of apps and websites, helping users streamline their work and communicate more effectively. More details about our mission and values can be found at superhuman.com and through our core values. Role overview As a Back-End Engineer, you will play a key role in shaping the Superhuman product suite. The work involves tackling complex technical challenges as our platform scales, directly impacting the experience of millions of users. Our engineers and researchers have the autonomy to innovate and influence the product roadmap. For insights into our technical projects, visit our technical blog. What you will do Write and contribute production code starting from your first week, launching impactful features within your initial months. Develop and maintain backend services that handle significant call volumes. Ensure high availability and reliability for both consumer and enterprise clients. Build expertise in infrastructure as code (IaC) practices. Collaborate with teams such as Core, Growth, Enterprise, Trust, and Data to enhance product offerings. This position is remote within Ukraine and offers the chance to work on meaningful projects that drive real impact for a global user base.

Superhuman embraces a flexible hybrid working model for this position, allowing team members to enjoy focused work time while also benefiting from in-person collaboration that nurtures trust, innovation, and a robust team culture.About SuperhumanSuperhuman, which includes Grammarly as part of its offerings, is an AI-driven productivity platform dedicated to unlocking the superhuman potential in everyone. Our suite of applications seamlessly integrates AI into daily workflows, connecting with over a million applications and websites. Our flagship products feature Grammarly’s writing assistance, Coda’s collaborative workspaces, Mail’s inbox management, and Go, the proactive AI assistant that offers contextual help automatically. Since our founding in 2009, Superhuman has empowered more than 40 million individuals, along with 50,000 organizations and 3,000 educational institutions worldwide, to eliminate busywork and concentrate on what truly matters. Discover more at superhuman.com.The OpportunityAs we pursue ambitious goals, we are seeking a Site Reliability Engineer (SRE) to join our infrastructure team. This role will focus on developing software to guarantee the reliability of our backend systems, collaborating closely with engineers in charge of these systems, and strategizing for our future expansion. You will collaborate with our existing production engineering teams in the EU as we shift from a “you build it, you own it” paradigm.At Superhuman, engineers and researchers are encouraged to innovate and discover breakthroughs, which directly impacts our product roadmap. As we scale our interfaces, algorithms, and infrastructure, the complexity of our technical challenges is rapidly increasing. Explore more insights from our team on our technical blog.As an SRE, your responsibilities will include:Scaling our Kubernetes-based control plane that handles billions of events daily.Enhancing our automation mechanisms to respond effectively to workload demands.Implementing Machine Learning systems across the organization.

At Superhuman, we embrace a dynamic and flexible hybrid work model, allowing our team members to enjoy both focused work time and opportunities for in-person collaboration. Our approach fosters trust, innovation, and a robust team culture. Please note that candidates for this role must be based in Ukraine.About SuperhumanGrammarly is now a part of Superhuman, an AI-driven productivity platform dedicated to unlocking the extraordinary potential within everyone. Our suite of applications and agents integrates AI into daily workflows, enhancing productivity across over a million applications and websites. Our offerings include Grammarly's writing assistance, Coda's collaborative workspaces, Mail's inbox management, and Go, our proactive AI assistant that intuitively provides context-based help. Founded in 2009, Superhuman empowers over 40 million individuals, 50,000 organizations, and 3,000 educational institutions globally to reduce busywork and concentrate on what truly matters. Discover more at superhuman.com and explore our values here.The OpportunityTo achieve our ambitious objectives, we are seeking a Customer Care Specialist to join our Customer Care team. This pivotal role will lead the transformation of customer experiences, employing innovative customer care strategies. Your contributions will directly enhance Superhuman's product offerings and help retain and expand our revenue-generating customer base.In this role, you will:Provide timely, empathetic, and personalized support, ensuring customer needs are prioritized in every interaction.Address non-technical inquiries regarding accounts, subscriptions, and product offerings through our email help desk.Create positive customer experience outcomes that enhance satisfaction and loyalty.Collaborate on various tasks both independently and with team members to improve operational efficiency and bring innovative ideas to fruition.Your Journey with Us:First 30 Days: Immerse yourself in our company culture and policies while mastering the tools, workflows, and ticket resolution processes. With the guidance of seasoned colleagues, you will complete training assignments and assessments promptly.By Month Three: Gain comprehensive knowledge of our products and services, allowing you to confidently assist customers and contribute to our team goals.

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.

Superhuman offers a vibrant hybrid working model for this position. This flexible approach allows our team members to enjoy focused work periods while also benefiting from in-person collaboration that nurtures trust, innovation, and a robust team culture.About SuperhumanSuperhuman, now part of Grammarly, is an AI productivity platform dedicated to unlocking the extraordinary potential within everyone. Our suite of applications and agents integrates AI into everyday workflows, collaborating with over 1 million applications and websites. Our offerings include Grammarly's writing assistance, Coda's collaborative workspaces, Mail's inbox management, and Go, a proactive AI assistant that understands context and delivers timely help. Established in 2009, Superhuman empowers over 40 million individuals, 50,000 organizations, and 3,000 educational institutions globally to 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 Back-End Software Engineers to join our engineering teams. Superhuman's engineers and researchers are empowered to innovate and discover breakthroughs that shape our product roadmap. As we scale our interfaces, algorithms, and infrastructure, we are faced with increasingly complex technical challenges. You can learn more about our work on our technical blog.As a Back-End Engineer at Superhuman, you will be instrumental in developing the core components of our product offerings, infrastructure, and features that assist 30 million users in writing with clarity and effectiveness every day.In this role, you will:Begin writing and deploying code in your first week and launch impactful features within your initial months.Develop and maintain production services with high call rates.Aim for high availability for both consumer and enterprise clients.Learn to build infrastructure as code (IaC).Collaborate extensively with internal teams like Core, Growth, Enterprise, Trust, and Data to deliver exceptional product experiences.Contribute to an engineering culture that prioritizes documentation, testing, and user experience.Assess existing systems and technologies while proposing enhancements.

Join our dynamic and innovative team as a Senior Full Stack Software Engineer. At nix, we are committed to delivering exceptional educational experiences to students worldwide. In this pivotal role, you will collaborate with a diverse team of engineers and experienced engineering managers, working together to create scalable and reliable web applications.Your responsibilities will include designing, developing, and maintaining applications using C# and Vue.js, while also collaborating with product and engineering managers to prioritize and implement features that add value to our users.

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.

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.

Position OverviewTeramind is seeking a Principal Full Stack Developer to lead our engineering efforts and deliver impactful solutions. In this role, you will be responsible for coding, architectural design, and fostering a strong engineering culture.Are you ready to make a significant impact? Here’s how you will contribute:• Develop full-stack features including React frontends, backend APIs, data layers, and infrastructure scripts.• Conduct code reviews, mentor fellow engineers, and elevate team performance.• Guide architecture and technical standards free from bureaucratic constraints.• Collaborate effectively with product and design teams to deliver rapid value.• Take ownership of complex projects from inception to completion, making critical decisions independently.• Enhance system performance, scalability, and reliability with minimal meetings.• Diagnose production issues and provide guidance during incident responses.Technical ChallengesThis role goes beyond basic tasks. You will tackle substantial challenges:• Design and implement secure integrations, including machine learning prediction engines, LLMs, and third-party APIs with stringent authentication and data management.• Construct high-performance user interfaces that remain efficient under significant data loads.• Develop dashboards that transform intricate datasets into clear, actionable insights.• Scale a multi-tenant SaaS platform, delivering on-premise solutions for enterprise clients as needed.• Handle security-sensitive data where accuracy is paramount.Who You AreYou are a seasoned engineer with:• Over 8 years of professional experience with robust full-stack capabilities.• At least 4 years of experience with React (Next.js), Nest.js/Express, GraphQL, Docker, and Postgres.• A solid understanding of system design and architecture, including CQRS, event sourcing, and distributed systems.• Proven ability to build scalable, secure, production-ready systems and a commitment to ownership.• Excellent communication skills, capable of articulating complex concepts clearly.

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.

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.

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 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 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 Intetics Inc., a worldwide leader in technology solutions that specializes in custom software development, distributed professional teams, and comprehensive digital services. With our unique Remote In-Sourcing® model and innovative platforms like TETRA™ for Technical Debt Reduction and Predictive Software Engineering for quality management, we empower clients to drive measurable business outcomes.Position OverviewWe are looking for a highly skilled Senior Full-Stack Engineer to contribute to our advanced workplace management platform. This innovative platform is designed to transform workspaces into collaborative and productive environments by integrating with popular workplace tools.Your role will involve developing scalable and high-performance SaaS solutions, engaging in both frontend and backend development, collaborating with product teams, and ensuring technical excellence throughout the platform.Key Features of the Platform: Desk Booking Room Booking Space Management Workplace EventsPrimary Responsibilities:Your Contributions Will Include: Developing high-performance, scalable PHP SaaS applications. Creating dynamic frontend applications using Angular 17+ and TypeScript. Designing solutions for web and mobile environments utilizing RESTful APIs hosted on AWS. Working closely with full-stack/backend engineers, designers, and product teams. Influencing technical decisions and guiding architectural strategy. Writing clean, maintainable, and secure code, along with automated testing. Producing and updating technical documentation.

Intetics Inc. is a leading global technology company specializing in customized software application development, distributed professional teams, software product quality assessment, and comprehensive digital solutions. With our unique Remote In-Sourcing® model, advanced Technical Debt Reduction Platform (TETRA™), and measurable quality management platform (Predictive Software Engineering), Intetics empowers clients to achieve significant business outcomes.Position OverviewWe are on the lookout for a talented Senior Full-Stack Engineer to become an integral part of our dynamic team, working on a cutting-edge workplace management platform that revolutionizes workspaces into collaborative hubs. This platform enhances productivity, simplifies operations, and promotes teamwork through seamless integration with leading workplace tools.As a Senior Full-Stack Engineer, you will contribute to the development of scalable, high-performance SaaS solutions, engaging in both frontend and backend development, collaborating with product teams, and championing technical excellence across the platform.Main Features of the Platform:Desk BookingRoom BookingSpace ManagementWorkplace EventsKey Responsibilities:Develop high-performance, scalable PHP SaaS applications.Design interactive frontend applications utilizing Angular 17+ and TypeScript.Create solutions for web and mobile platforms using RESTful APIs on AWS.Work closely with full-stack/backend engineers, designers, and product teams.Influence technical decisions and architectural strategies.Produce clean, maintainable, and secure code complemented by automated tests.Develop and uphold technical documentation.Desired Qualifications:5+ years of software engineering experience.Demonstrated success in building large-scale consumer web or mobile applications.Proficiency in PHP and Symfony; Laravel experience is a plus.Strong background in TypeScript and Angular (17+).Solid grasp of MVC and SOLID principles.Experience with REST APIs and multi-tenancy preferred.Familiarity with Agile/Scrum methodologies.Exceptional teamwork and communication abilities.Bachelor's degree in Computer Science or a related field.Our Technology Stack:PHP 8.3Symfony 7.2TypeScriptAngular 20AWSPostgreSQLDockerKubernetes