Senior Software Engineer

Role: Senior Software Engineer Function: Software Engineering Location: Kolkata, India Type: Full-time Industry: AI, Medical SaaS, Dental Technology About Company The company builds medical AI SaaS for the U.S. dental market. Its all-in-one platform unifies analytics, scheduling, communications, payments, and marketing automation. Thousands of dental practices across North America rely on it daily. It automates admin busywork and gives teams real-time visibility into revenue and retention. Patients get a self-serve portal to book appointments, view history, and pay online. The company is mission-driven, execution-oriented, and operating in one of healthcare's most under-digitized verticals. Position Overview This role owns significant components of the company's cloud-native SaaS platform — taking features from ambiguous requirements through design, implementation, and production operation. You'll build scalable backend services, event-driven workflows, and full-stack capabilities that serve thousands of dental practices daily. Beyond shipping, you'll raise the technical bar through architecture contributions, code reviews, and mentoring peers. Role & Responsibilities Design, build, and own end-to-end features and services across the platform — from requirements through production operation. Build scalable REST APIs, backend services, and event-driven workflows using Kafka-compatible messaging and async processing patterns. Contribute to frontend and full-stack development using React.js, Next.js, and TypeScript as needed. Translate ambiguous requirements into well-structured technical designs; participate in architecture discussions and document trade-offs clearly. Improve system observability through monitoring, logging, and alerting (OpenTelemetry, New Relic, CloudWatch); participate in on-call incident response. Write and review unit, integration, and automated tests; uphold high standards for code quality and operational readiness. Mentor junior engineers through pairing and code reviews; use AI-assisted development tools to improve delivery speed without compromising quality or security. Must Have Criteria 5–8 years of software engineering experience building and operating production-grade SaaS or web applications. Strong backend proficiency in Python with Django, Django REST Framework, or FastAPI; experience with SQLAlchemy/Alembic. Hands-on experience with event-driven architecture and Kafka (or Kafka-compatible systems: Redpanda, Amazon MSK) in production. Proven experience with AWS services: ECS/EKS/Fargate, Lambda, RDS, ElastiCache, S3, API Gateway, and CloudWatch. Solid experience with PostgreSQL — including database design, query optimization, and caching strategies with Redis. Demonstrated ability to own and deliver complex features independently, including debugging performance, scalability, and reliability issues. Experience with Docker, CI/CD pipelines, and infrastructure-as-code (Terraform). Nice to Have Experience building multi-tenant SaaS platforms or large-scale transactional/data-intensive workloads. Familiarity with Kubernetes for container orchestration. Experience building ETL/data pipelines or exposure to Databricks or similar analytics platforms. Exposure to healthcare technology or HIPAA-compliant application development. Track record of mentoring engineers and leading feature development across a team. What We Offer End-to-end ownership of meaningful platform components with clear, measurable impact on thousands of dental practices. Tight, cross-functional team with high autonomy and fast shipping cycles in a large, under-digitized healthcare vertical. Flexible scheduling and strong support for technical growth and continuous learning. Opportunity to work at the intersection of AI, medical SaaS, and real-world operational impact.