Senior Software Engineer

About Smart Working

At Smart Working, we believe your job should not only look right on paper but also feel right every day. This isnt just another remote opportunity its about finding where you truly belong, no matter where you are. From day one, youre 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 youre 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

Were looking for experienced Senior Fullstack Engineers to join a leading UK organisation undergoing an exciting AI transformation. Youll work in a fully remote, autonomous engineering team building and enhancing large-scale customer-facing platforms using technologies including TypeScript, Node.js, Next.js, React, C#/.NET, AWS, and PostgreSQL.

Working in a collaborative, fast-paced environment, youll contribute to frequent production releases, partner closely with designers, leverage AI-assisted development tools, and help deliver high-quality, accessible software while making a real impact on the product and user experience.

Responsibilities

• Design, develop, test, and deliver high-quality full-stack applications using TypeScript, Node.js, Next.js, React, and C#/.NET where required.
• Build clean, maintainable, and well-tested code that meets high standards for quality, accessibility, and performance.
• Work directly on production systems while handling production data responsibly and maintaining strict GDPR compliance.
• Take ownership of features from design through deployment, delivering work independently within an agile engineering team.
• Review, question, and challenge requirements to ensure the right solutions are built before development begins.
• Collaborate closely with designers to translate mockups into intuitive, user-friendly experiences while proactively identifying and addressing UX improvements.
• Contribute to and maintain robust automated test coverage using Jest and Vitest.
• Communicate blockers, risks, and technical challenges early to support smooth project delivery.
• Participate actively in agile ceremonies, including stand-ups, retrospectives, demos, and story reviews.
• Follow a modern engineering workflow by submitting small, frequent pull requests and supporting multiple production releases each week.
• Use AI-assisted development tools, including Claude Code, as part of your day-to-day engineering workflow.
• Work collaboratively within small, autonomous squads while contributing ideas in a flat, highly communicative team environment.
• Apply strong product thinking and sound engineering judgement to deliver solutions that create meaningful user impact.
• Adapt to established engineering practices, embracing the teams development processes and continuous improvement culture.
• Proactively identify problems, recommend improvements, and contribute to technical discussions that enhance product quality and delivery.

Requirements

• 5+ years of professional experience in software engineering with a strong full-stack development background.
• 5+ years of hands-on experience with TypeScript and Node.js.
• 3+ years of experience with Next.js and/or React.
• 3+ years of experience with PostgreSQL, SQL Server, or other relational databases.
• 3+ years of experience building and deploying applications on AWS.
• 3+ years of experience writing and maintaining automated tests using Jest and/or Vitest.
• 2+ years of experience with C#/.NET.
• Strong design sensibility with an eye for creating intuitive user experiences.
• Experience using AI-assisted development tools, including Claude Code, as part of the software development workflow.

Nice to Have

• 1+ year of experience with OpenSearch or Elasticsearch.
• 1+ year of experience with Redis and/or Amazon S3.
• 1+ year of experience with Kubernetes and DevOps tooling.
• 1+ year of experience with Terraform or Infrastructure as Code (IaC).

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 a…