Software Development Engineer II

About AiSensy

AiSensy is a WhatsApp based Marketing & Engagement platform helping businesses like Adani, Delhi Transport Corporation, Yakult, Godrej, Aditya Birla Hindalco, Wipro, Asian Paints, India Today Group, Skullcandy, Vivo, Physicswallah, and Cosco grow their revenues via WhatsApp.

• Enabling 210,000+ Businesses with WhatsApp Engagement & Marketing
• 800 Crores+ WhatsApp Messages exchanged between Businesses and Users via AiSensy per year
• Working with top brands like Delhi Transport Corporation, Vivo, Physicswallah & more
• High Impact as Businesses drive 25-80% Revenues using AiSensy Platform
• Mission-Driven and Growth Stage Startup backed by Marsshot.vc, Bluelotus.vc & 50+ Angel Investors

We are looking for a Software Development Engineer II (SDE-2) to join our engineering team and build scalable, reliable, and high-performance applications. You will work closely with product managers, designers, and engineers to deliver impactful features while contributing to the technical growth of the team. As an SDE-2, you will take ownership of key modules, participate in system design discussions, mentor junior engineers, and help drive engineering excellence through high-quality code and best practices.

Key Responsibilities

• Design, develop, test, and maintain scalable web applications and backend services.
• Own features and modules end-to-end, from design to deployment and monitoring.
• Build secure, reliable, and high-performance systems capable of handling large-scale traffic
• Collaborate with product managers, designers, and engineers to define and deliver product requirements.
• Write clean, maintainable, and well-documented code following engineering best practices.
• Participate in system design and architecture discussions.
• Review code, provide constructive feedback, and maintain high engineering standards.
• Identify and resolve performance bottlenecks, bugs, and production issues.
• Mentor and support junior engineers through technical guidance and code reviews.
• Contribute to improving development processes, testing practices, and deployment workflows.
• Work closely with DevOps teams to ensure smooth deployment, monitoring, and incident management.
• Stay updated with emerging technologies and recommend improvements where appropriate.

Required Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 3–5 years of professional software development experience.
• Strong hands-on experience with the MERN stack (MongoDB, Express.js, React.js, Node.js).
• Strong proficiency in JavaScript/TypeScript and modern web development practices.
• Experience building and consuming RESTful APIs.
• Solid understanding of database design, indexing, and query optimization.
• Strong knowledge of data structures, algorithms, object-oriented design, and software engineering principles.
• Experience with cloud platforms such as AWS, GCP, or Azure.
• Familiarity with CI/CD pipelines and version control systems such as Git.
• Strong debugging, problem-solving, and analytical skills.
• Excellent communication and collaboration abilities.

Preferred Qualifications

• Experience with Docker and Kubernetes.
• Experience with microservices architecture.
• Experience with messaging systems such as Kafka, RabbitMQ, SQS, or similar technologies.
• Exposure to monitoring and observability tools.
• Experience working in Agile/Scrum environments.

What Success Looks Like

• Deliver high-quality features with minimal supervision.
• Take ownership of critical modules and services.
• Consistently improve code quality, reliability, and system performance.
• Actively contribute to design discussions and technical decision-making.
• Support the growth of junior engineers through mentorship and collaboration.