Senior Full Stack Engineer (Product & AI-Focused) - Ruby on Rails & React [AS230]

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 high‑calibre Senior Full Stack Engineer to join a product‑focused team, building and iterating on modern applications in a fast‑paced environment. This role goes beyond traditional full‑stack development.

It is suited for engineers who combine strong technical fundamentals with product thinking, high ownership, and the ability to move quickly while maintaining quality. You will work across the stack, prototype rapidly, and leverage AI tools as a core part of your daily workflow. The ideal candidate is an independent thinker who can operate with minimal direction, challenge assumptions (including AI‑generated outputs), and deliver end‑to‑end solutions.

This is a highly visible role requiring strong communication skills and the ability to engage confidently with senior stakeholders.

Responsibilities

Design, build, and ship scalable full‑stack applications across backend and frontend systems

Take ownership of features end‑to‑end, from ideation to production deployment

Prototype quickly and iterate based on product and user feedback

Use AI tools (e.g., Copilot, ChatGPT, Cursor, Claude) to accelerate development while applying sound engineering judgment

Evaluate and improve AI‑generated code, ensuring quality, performance, and maintainability

Contribute to system design, architecture, and technical decision‑making

Work across backend, frontend, and infrastructure layers as needed

Collaborate with product stakeholders to define requirements and make informed trade‑offs

Identify gaps, inefficiencies, or product issues and proactively suggest improvements

Maintain high standards of code quality, testing, and performance

Requirements

Strong academic background from top‑tier engineering institutions (e.g., IITs, IISc, IIITs, BITS, top NITs, or equivalent)

6‑10+ years of experience in software engineering, with strong full‑stack exposure

Strong backend engineering experience (Ruby on Rails preferred, or Python, Go, Rust with equivalent depth)

Solid frontend development experience with modern frameworks (e.g., React or similar)

Strong understanding of system design, APIs, and scalable architecture

Proven ability to build and ship production‑grade applications end‑to‑end

Demonstrated product mindset with the ability to think beyond implementation

Experience working in product‑driven environments with high ownership

Hands‑on experience using AI tools (e.g., Copilot, ChatGPT, Cursor, Claude) in day‑to‑day development

Ability to critically evaluate AI‑generated output and apply sound engineering judgment

Strong communication skills with the ability to articulate technical decisions clearly

High level of autonomy, ownership, and problem‑solving capability

Nice to Have

Experience working in high‑growth startups or product‑led companies

Experience contributing across DevOps or infrastructure

Strong track record of ownership and impact in previous roles

Exposure to fast‑paced, high‑performance engineering cultures

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.

We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed