Senior Front End Engineer (React)

We are on the lookout for a skilled and experienced Senior .NET Engineer to join our dynamic team.The Senior Back-end Engineer will play a crucial role in architecting and developing high-performance, scalable backend systems tailored for B2C, DTC, and B2B warehouse management applications. This position emphasizes the creation of resilient microservices architectures, the development of high-transactional systems, and the utilization of cloud-native technologies to ensure outstanding performance and dependability. As a Senior Back-end Engineer, you will engage with cutting-edge technologies, mentor junior team members, and actively contribute to architectural decision-making.

N-iX is seeking a talented and experienced Senior Back-end Engineer (Java & Python) to enhance our dynamic team. The Backoffice Support Team (BST) is responsible for the development and maintenance of systems and tools utilized by our internal backoffice teams such as Customer Service and Operations. Our mission is to streamline customer and commercial partner management through robust internal support platforms and workflows. Key responsibilities include: Managing our primary ticketing system, Zendesk. Overseeing Postbox, our internal customer communication hub. Developing custom integrations with core systems and various internal services. Ensuring operational efficiency by providing reliable, scalable, and well-integrated tools for internal users.

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.

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.

About Ajax Systems Ajax Systems stands as a major international technology company and is the largest security systems manufacturer in Europe. Over 4.5 million end users and 330,000 PRO users in more than 180 countries rely on our products. Our solutions protect homes and businesses of every scale. The current lineup includes 280 devices covering intrusion protection, video surveillance, fire safety, comfort, and automation. Both our team and user community continue to grow each year. Role Overview: Back-end QA Engineer (Lviv) Security systems demand reliability and stability. At Ajax Systems, the QA Department takes an active role in every phase of product development, from the earliest design through production and ongoing support. QA Engineers here do far more than standard testing. They investigate and uncover bugs across hardware, software, and system interactions. The team puts new devices through rigorous trials, including simulations of human and animal movement, extreme weather conditions, and controlled fire or flooding scenarios.

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.

About UsAt Ideals, we are a pioneering global B2B SaaS company, acclaimed as the most highly rated and customer-centric brand in the secure business collaboration arena. With over 2,000,000 users spanning 300,000 companies worldwide, we empower teams to navigate high-stakes processes and make critical decisions with enhanced efficiency, reduced stress, and superior quality.Ideals Virtual Data Room (VDR): A secure platform for document sharing and collaboration, essential for due diligence, fundraising, corporate reporting, licensing, clinical trials, and various intricate transactions.Ideals Board: A collaborative platform designed for board and leadership teams to make decisions more quickly, safely, and in compliance with regulations.The RoleWe are on the lookout for a Senior Backend Engineer (.NET) to join our Orion Team, a vital component of our organization. This team is responsible for the essential file management backbone of the Ideals VDR, which includes:File conversion pipelinesAdvanced watermarking solutionsAI-driven document classification systemsHigh-performance document viewing experiencesTeam Composition: Our team consists of 2 Backend Engineers, 2 Frontend Engineers, 2 QA Engineers, an Engineering Manager, a Tech Lead, an Architect, a Product Manager, a Designer, and a Content Manager.Technology Stack: Our technology stack includes .NET Framework 4.7, .NET 8, ASP.NET Core, Entity Framework, Web API, MS SQL Server / PostgreSQL, AWS, Docker/Kubernetes, ArgoCD, and Git.Your ResponsibilitiesEngage in all phases of the Software Development Life Cycle (SDLC) as part of a cross-functional product team, including but not limited to requirements analysis, design, implementation, testing (unit, integration, and service tests), deployment, and operational management of new product features, as well as addressing change requests, defect resolution, spikes, and proof-of-concept development.Maintain high-quality standards in all deliverables.

Join Intetics Inc., a leading global technology company renowned for delivering tailor-made software development, distributed professional teams, and comprehensive digital solutions. We are on the lookout for a seasoned Senior C# / .NET Engineer to enhance our dynamic team on a part-time basis for a 4-5 month project.Key Responsibilities:Lead backend technical direction, focusing on architecture, code quality, and delivery planning while actively engaging in hands-on implementation of SAR area-based modules.Design and develop RESTful APIs and service-oriented backend components to elevate our platform.Implement robust observability practices, including:Logging crucial operations, such as geospatial computations and user interactions.Creating production-grade metrics using tools like Prometheus or Grafana.Enhance performance and reliability through comprehensive load and stress testing, accommodating up to 3,000 simultaneous connections.Ensure backend alignment with security and traceability requirements, supporting integrations reliant on GOV.ID, QES, and BankID.Collaborate with project stakeholders to refine business processes and technical designs during the inception phase.Support deployment and documentation efforts, ensuring successful delivery and handover of projects.

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.

Welcome to Liven! We are pioneering a global ecosystem of innovative products designed to empower individuals in their journey of self-discovery, helping them overcome negative thoughts and behaviors.Our Ecosystem Includes:Self-Discovery Companion — an app that has already impacted 2.5 million users, fostering deeper self-relationships through AI coaching, mood tracking, sound practices, and engaging bite-sized learning.Online Coaching — expert-led sessions to assist in navigating life's complexities.Supplements — products aimed at physical recovery and overall wellness.Liven thrives on curiosity. Our team is passionate about innovation and committed to creating impactful solutions that guide individuals on their self-discovery path. We foster a culture of experimentation to continuously improve how we support our users.We are searching for a Lead Front-End Engineer to spearhead the development of our builder solutions and complex automation systems. This role is ideal for those who relish the challenge of constructing tools that facilitate internal processes, requiring a keen focus on architectural flexibility, performance, and high-load visual editors.

Join our innovative team as a Senior Front End Engineer and leverage your expertise in crafting sleek, responsive, and user-centric interfaces. With over 5 years of professional experience, you will play a pivotal role in enabling real-time control and monitoring of cutting-edge robotic swarms and sensor systems, directly enhancing the usability and performance of our groundbreaking robotics solutions.Your Daily Responsibilities:Design, develop, and optimize frontend applications for effective control and visualization of robotic swarms and sensor data.Collaborate with backend engineers to integrate APIs, ensuring a seamless data flow between frontend and backend systems.Create intuitive, high-performance, and responsive user interfaces using modern frameworks like React or similar.Engage closely with UX/UI designers to convert designs into functional applications.Maintain code quality, scalability, and readability through best practices and thorough code reviews.Identify and resolve frontend performance issues to optimize real-time applications.

Join our innovative Game Development studio as a Senior Backend Developer specializing in .NET. We are seeking a seasoned professional who possesses a profound understanding of server architectures, real-time load handling, and cloud infrastructures. This position is ideal for an individual eager to build the backend for a new mobile game targeting Android and iOS platforms from the ground up, shaping the technological foundation of the product and making pivotal technical decisions.

Join Our Team at IdealsIdeals is a renowned global B2B SaaS provider celebrated for being the most customer-focused brand in the secure business collaboration space. With over 2 million users across 300,000 companies worldwide, we empower organizations to manage high-stakes processes and make significant decisions with greater ease and efficiency.Ideals Virtual Data Room (VDR): Facilitating secure document sharing and collaboration for due diligence, fundraising, corporate reporting, licensing, clinical trials, and other intricate transactions.Ideals Board: A platform designed for board and leadership collaboration, ensuring faster, safer, and compliant decision-making.Your MissionWe are in search of a Backend Software Engineer (.NET) with AI skills who will be pivotal in developing and scaling our secure, high-load VDR services while also exploring the integration of AI patterns into our product features.Your success will be gauged by your strong backend fundamentals—reliability, performance, scalability, and maintainability—and your capability to implement AI features safely and efficiently using reusable, well-architected components.This role is hands-on within a mature product environment where engineering excellence, observability, and sustainable architecture are paramount.Key ResponsibilitiesBackend Engineering:Design, develop, and maintain high-quality production-grade .NET services.Utilize .NET Framework 4.7, .NET 8, ASP.NET, Web API, and Entity Framework.Create and refine data models with MS SQL Server and PostgreSQL.Deploy and manage services on AWS, leveraging Docker, Kubernetes, and ArgoCD.Ensure service reliability and performance through:Defining clear SLIs, SLOs, and capacity planning.Implementing caching, retries, backoff strategies, and circuit breakers.Establishing secure multi-tenant access control.Take ownership of services from design through implementation, deployment, monitoring, and support.

At Intellectsoft, we are a pioneering software development firm that has been delivering cutting-edge solutions since 2007. Our operations span across North America, Latin America, the Nordic region, the UK, and Europe. We specialize in diverse sectors such as Fintech, Healthcare, EdTech, Construction, and Hospitality, collaborating with startups, mid-sized enterprises, and Fortune 500 companies to foster innovation and scalability. Our esteemed clientele includes industry leaders like Jaguar Motors, Universal Pictures, and Harley-Davidson, where our teams strive to make a significant impact every day. Together, we craft solutions that truly matter. Explore more at www.intellectsoft.netOur client is a reputable international health products company based in the United States, boasting over 30 years in the market with an annual revenue exceeding $1.5 billion, which continues to grow.They utilize a multi-level marketing e-commerce platform to distribute their products, which enjoys a vast user base globally.

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.

ELEKS seeks a Middle Strong or Senior Full-Stack Developer skilled in .Net and React. This remote role is open to professionals based in Ukraine. Project Details Join a team building a large-scale Human Resources System funded by the US Government. The platform is designed to support several ministries in a Middle Eastern country, with the goal of streamlining human resource management across various departments. Key Focus Develop and maintain features using .Net and React Contribute to a project impacting government-level HR processes Collaborate with an international team on a long-term initiative Location This position is fully remote for candidates residing in Ukraine.

Join Playtech, a leader in gaming technology, as a Front End Game Developer in Kyiv. In this exciting role, you will collaborate with a dynamic team to create engaging gaming experiences. You will be responsible for developing innovative front-end solutions that enhance user interaction and drive the future of gaming. Your creativity and technical skills will play a vital role in shaping our gaming platforms.

Intetics Inc., a premier American technology firm specializing in bespoke software application development, the formation of distributed professional teams, software product quality evaluation, and comprehensive digital solutions, is actively seeking skilled Technical Interviewers.Key Responsibilities: Conduct in-depth technical interviews and assessments for .Net developer positions to gauge candidates' expertise in .Net frameworks and their problem-solving acumen using .Net technologies. Collaborate closely with recruitment teams to craft interview questions that meet the specific demands of the .Net roles and reflect the latest industry trends. Deliver thorough feedback and detailed evaluations of candidate performances to hiring managers, facilitating informed decision-making. Stay informed about the latest advancements and trends in the .Net ecosystem to ensure precise skill assessments of candidates.

Intetics seeks a Fullstack .NET Developer with strong Python experience. This role is fully remote and open to candidates living in Ukraine. Key responsibilities Build and maintain web applications using both .NET and Python Collaborate with team members across different disciplines to deliver dependable solutions Work on backend and frontend development tasks as project needs arise Requirements Proven experience working with .NET and Python Ability to work well with colleagues in a variety of roles Willingness to handle new challenges and adjust to shifting project requirements Location This is a remote position for candidates based in Ukraine.