Senior Software Engineer (React & .NET)

Job description

**This position is listed on behalf of a partner company, which manages all applications and next steps. Our partner is looking for a Senior Software Engineer (React & .NET) based in Canada.** ## Role Overview Join a collaborative, remote-first engineering team focused on modernizing financial services through innovative digital solutions. As a Senior Software Engineer, you will drive the development of high-quality applications using React, TypeScript, C#, and .NET, delivering impactful features that address complex business challenges. You will contribute across the full stack, designing responsive user interfaces, secure REST APIs, and reliable backend systems. Working closely with clients, product stakeholders, and fellow engineers, you will translate business objectives into practical technical solutions and ensure successful sprint delivery. You will also mentor other developers, promote engineering best practices, and leverage AI-powered tools to improve productivity and software quality. This opportunity offers significant technical ownership, professional development, and the flexibility to work remotely within a supportive, internationally distributed team. ### Accountabilities - Design, develop, test, and maintain full-stack applications using React, JavaScript, TypeScript, C#, and .NET. - Build responsive, accessible, and user-friendly interfaces while ensuring seamless integration with backend services. - Design and implement secure, efficient RESTful APIs and server-side applications, working with databases such as SQL Server. - Contribute to technical designs for complex features, selecting appropriate solutions that balance business needs, scalability, maintainability, and performance. - Incorporate AI-powered technologies and development tools into engineering workflows to enhance innovation, efficiency, and delivery quality. - Collaborate with delivery leads, product stakeholders, and client representatives to clarify requirements, define acceptance criteria, document technical approaches, and align priorities. - Support sprint planning, delegate technical tasks when appropriate, monitor progress, anticipate risks, and help the team deliver committed work on time. - Identify and address technical debt, prevent recurring defects, and improve development practices to increase team productivity and reduce rework. - Mentor junior engineers through code reviews, technical discussions, and hands-on collaboration, encouraging effective use of AI tools and established engineering practices. - Manage development environments, deployment pipelines, and key technical deliverables to support reliable releases. - Present technical demonstrations and sprint outcomes, communicating implementation details and business value clearly to technical and non-technical audiences. ## Requirements - Professional experience: 5–8+ years of professional software engineering experience, with a strong track record of delivering production-ready applications and following engineering best practices. - Frontend development: Hands-on experience building interactive, responsive user interfaces with React, React.js, JavaScript, and TypeScript. - Backend development: Strong experience developing .NET applications using C#, including secure RESTful APIs, server-side architecture, and database integration. - Full-stack expertise: Demonstrated proficiency in at least two of the following areas: frontend user interface development, data-driven REST API development, or database, cloud, and server administration. - Software architecture: Ability to integrate frontend and backend components effectively, ensure reliable data flow, and design maintainable application architectures. - DevOps practices: Experience applying DevOps principles and supporting development pipelines, deployment processes, and software delivery best practices. - Technical leadership: Ability to guide development