Work type: Office/Remote Technical Level: Senior Job Category: Software Development Project: American brand for home crafters N-iX is a global company with Ukrainian roots that helps businesses across the world develop successful software products. Founded in 2002, N-iX has come a long way and increased its presence in eight countries spanning Europe, the US, and Latin America. Today, we are a strong community of 2,400+ professionals and a reliable partner for global industry leaders and Fortune 500 companies. We are looking for a highly motivated and talented Senior Engineer with excellent qualifications to help design and build cross-platform libraries and tools to communicate directly with the client’s machines. The position demands a candidate capable of delivering high-quality work against technical and schedule challenges, while following strong software design and process principles. You will work in a fast-paced environment, delivering world-class products that delight our customers and help the business grow. You are passionate about building great software and providing the best customer experience. You are a driver of change and thrive on solving complex technological challenges. Responsibilities: Collaborate with fellow department members, product managers, firmware engineers, test engineers, and designers to develop cross-platform (iOS, Android, macOS, Windows) libraries and tools that interface directly with the client’s machines via USB and Bluetooth (BLE and Classic). Develop new features, enhance existing functionality, and improve the quality of the libraries and tools. Apply software engineering design patterns to create well-structured, modular, performant application code. Perform code reviews, write unit and integration tests, and contribute to architectural planning and refactoring. Ensure adherence to best coding practices. Mentor and train junior team members. Eligibility: B.S. or M.S. in Computer Science, Software Engineering, or a related field with 5+ years of relevant experience. Required Skills: Proficiency in C, C++, Java, Kotlin, and Swift. Expertise in USB and Bluetooth (Classic and BLE). Experience developing communications protocols. Experience creating Android, iOS, Windows, and macOS libraries/frameworks. Familiarity with CMake and ability to contribute to cross-platform build procedures. Experience with package managers (npm, CocoaPods, Maven, NuGet, SwiftPM, etc.). Experience in unit and integration testing. Proficiency in Git within collaborative environments (pull requests, branching strategies, tags, etc.). Experience with continuous integration and delivery (e.g., GitHub Actions). Strong understanding of SDLC and Scrum/Agile methodologies. Solid grasp of fundamental algorithms, data structures, and design patterns. Strong critical thinking skills to evaluate alternatives and propose solutions aligned with business objectives. Effective written and verbal communication skills for technical and non-technical audiences. Ability and motivation to independently learn new technologies. We offer*: Flexible working format - remote, office-based or flexible A competitive salary and good compensation package Personalized career growth Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more) Active tech communities with regular knowledge sharing Education reimbursement Memorable anniversary presents Corporate events and team buildings Other location-specific benefits *not applicable for freelancers