Senior Software Engineer (ReactJS)

Riyadh, Saudi Arabia | Full-time | Office

A dynamic and forward-thinking technology firm in Riyadh is seeking an experienced Senior Software Developer to lead the architecture, development, and optimization of complex web applications. This is a hands-on full-stack role, ideal for a seasoned developer passionate about building scalable and efficient systems with modern technologies.

Key Responsibilities

• Design, develop, and maintain robust full-stack web applications using NextJS, NestJS, Tailwind CSS, and Microsoft SQL Server.
• Lead the end-to-end lifecycle of new features — from planning and design to deployment and maintenance.
• Ensure high performance, security, and scalability of applications across both frontend and backend layers.
• Collaborate closely with UX/UI designers, engineers, and cross-functional teams to implement solutions based on Figma mockups.
• Produce high-quality, well-documented code and utilize Markdown and MermaidJS for clear architectural documentation and technical diagrams.
• Conduct thorough unit and end-to-end testing to maintain code integrity and system reliability.
• Advocate for and enforce best practices in software development, code quality, and system architecture.

Required Qualifications

• Bachelor’s degree in Computer Science, Software Engineering, or related field.
• 7+ years of full-cycle software development experience.
• Expert knowledge of TypeScript, NextJS, NestJS, and RESTful API integration.
• Strong experience with relational databases, particularly Microsoft SQL Server and/or PostgreSQL.
• Proven ability to optimize application performance, implement fault-tolerant systems, and ensure high availability.
• Comfortable working with Figma for UI/UX collaboration.
• Clear communication and documentation skills using Markdown; familiarity with MermaidJS is a plus.

Preferred Qualifications

• Prior experience as a Full-Stack Developer in high-growth environments.
• Knowledge of CI/CD pipelines, modern DevOps practices, and version control tools.
• Familiarity with Agile methodologies and collaborative workflows.
• Eagerness to learn and apply new technologies in a fast-paced, evolving tech stack.

Compensation & Benefits

• Competitive salary package based on experience
• Long-term growth opportunity with a technology-driven firm
• Modern office environment and professional team culture
• Relocation support available for strong candidates (if applicable)