Job Title: Sr. Java React Developer Location: Mississauga, ON- OnsiteEmployment Type: Full timeAt Smart IT Frame, we connect top talent with leading organizations across the USA. With over a decade of staffing excellence, we specialize in IT, healthcare, and professional roles, empowering both clients and candidates to grow together.Key ResponsibilitiesLead the design and development of large-scale, mission-critical applications using Java, React, and modern architectural patterns.Provide technical leadership across the full software development lifecycle, from requirements analysis to deployment and monitoring.Architect scalable, secure, and performant systems aligned with business and product goals.Mentor, coach, and guide engineering team members, fostering a culture of continuous improvement and technical excellence.Collaborate with product managers, designers, and other engineering teams to define technical requirements and ensure alignment.Drive adoption of best practices in coding, testing, CI/CD, cloud architecture, and DevOps.Oversee code reviews, technical design reviews, and engineering process improvements.Troubleshoot complex issues, conduct root‑cause analysis, and implement durable solutions.Contribute to the evolution of the team's technical strategy, engineering standards, and long-term roadmap.Apply and advocate for the effective use of agentic AI development tools (e.g., Devin AI) to accelerate software development and improve productivity. Apply today or share profiles at