Senior / Staff Full Stack Engineer (AI & Systems), (Remote, Full-Time) [AS228] at smart-working-solutions

About Smart Working At Smart Working, we believe your job should not only look right on paper but also feel right every day. This isn’t just another remote opportunity - it’s about finding where you truly belong, no matter where you are. From day one, you’re welcomed into a genuine community that values your growth and well-being. Our mission is simple: to break down geographic barriers and connect skilled professionals with outstanding global teams and products for full-time, long-term roles. We help you discover meaningful work with teams that invest in your success, where you’re empowered to grow personally and professionally. Join one of the highest-rated workplaces on Glassdoor and experience what it means to thrive in a truly remote-first world. About the Role We are looking for a Senior / Staff-level Full Stack Engineer with strong system design expertise and practical experience applying AI tooling in real-world development environments. This is a high-impact role focused on designing and evolving platform architecture, modernising legacy systems, and integrating AI-driven capabilities into both engineering and product workflows. You will operate with a high degree of autonomy in a fast-paced, low-process environment, contributing not only to technical decisions but also to product direction and commercial outcomes. This role requires a pragmatic mindset, the ability to work with ambiguity, and a strong sense of ownership in defining and solving complex problems. Responsibilities • Design and evolve system architecture across platform infrastructure, including complex and high-scale environments. • Lead architectural decisions and make pragmatic trade-offs across the full technology stack. • Refactor and modernise legacy codebases using AI-assisted development workflows. • Build and integrate AI agents and automation into development, product, and operational processes. • Contribute to product strategy and commercial decisions, not just technical execution. • Work across backend systems, primarily using modern backend technologies such as Golang where applicable. • Collaborate with cross-functional stakeholders to define problems and shape technical direction. • Operate independently in a high-velocity environment, driving initiatives from concept to delivery. • Ensure systems are scalable, maintainable, and aligned with long-term business goals. • Leverage cloud infrastructure to support system performance, reliability, and growth. Requirements • 8+ years of experience in software engineering, with a strong focus on system design and architecture. • 6+ years of experience in system design and architecture, including designing scalable and complex systems. • 2+ years of practical experience using AI tooling in development (e.g. LLMs, agents, automation workflows). • 5+ years of experience in backend engineering, preferably with Golang or similar technologies. • 3+ years of experience working with cloud and infrastructure, preferably AWS. • 2+ years of experience in legacy system refactoring and modernisation. • Strong product thinking and commercial awareness, with the ability to contribute beyond pure engineering. • Proven experience working across the full stack and making pragmatic technical trade-offs. • Experience leading projects or major technical initiatives. • Ability to work effectively with incomplete information and shape direction. • Strong ownership mindset with the ability to define and solve problems independently. Nice to Have • Experience building or integrating AI agents into engineering or product workflows. • Exposure to fintech, payments, or platform-based systems. • Experience working in high-growth or startup environments. • Strong interest in leveraging AI to improve engineering velocity and system design. Benefits • Fixed Shifts: 12:00 PM - 9:30 PM IST (Summer) | 1:00 PM - 10:30 PM IST (Winter) • No Weekend Work: Real work-life balance, not just words • Day 1 Benefits: Laptop and full medical insurance provided • Support That Matters:Mentorship, community, and forums where ideas are shared • True Belonging: A long-term career where your contributions are valued At Smart Working, you’ll never be just another remote hire. Be a Smart Worker - valued, empowered, and part of a culture that celebrates integrity, excellence, and ambition. If that sounds like your kind of place, we’d love to hear your story.