Senior Backend Engineer

Location: Remote or Hybrid Type: Full\-Time Seniority: Senior / Lead About the Role We’re looking for a Senior Software Engineer with strong backend engineering expertise to lead the architecture, development, and scalability of our core systems. You will own backend services, APIs, data models, and cloud infrastructure. While this role is primarily backend\-focused, you'll also collaborate on React\-based frontend applications as needed. This is a high\-impact, high\-ownership role with significant influence on product direction and engineering culture. Responsibilities * Lead the design, development, and maintenance of backend services and APIs. * Architect scalable, secure, and highly available backend systems using cloud\-native patterns. * Own DevOps initiatives, including CI/CD automation, observability, performance monitoring, and infrastructure reliability. * Manage and optimize AWS infrastructure (Lambda, API Gateway, EC2/ECS/EKS, S3, IAM). * Design and optimize NoSQL data models (MongoDB, DynamoDB, or similar). * Develop and maintain Node.js services and internal tooling. * Contribute to React\-based frontends (React, React Native, Electron, Next.js) when needed. * Ensure backend systems follow security, compliance, and data protection best practices. * Collaborate with cross\-functional teams to ship features and resolve complex issues. * Mentor engineers and participate in technical planning and architectural decisions. Must\-Have Qualifications * 4\+ years of experience in backend\-focused software engineering. * Strong experience with AWS services (serverless, compute, storage, IAM, networking). * Proficiency with NoSQL databases (MongoDB, DynamoDB, or similar). * Advanced experience with Node.js or equivalent backend technologies. * Excellent problem\-solving skills, communication abilities, and technical leadership. Nice\-to\-Have Experience * HealthTech, clinical workflows, or healthcare integrations. * Frontend development with React, Electron, Next.js, or React Native. * Offline\-first or local\-first application development (sync, conflict resolution, caching). * Containerization and orchestration (Docker, Kubernetes, ECS/EKS). * AI\-powered features (AI transcription, summarization, chatbots, LLM integrations). * DevOps and infrastructure\-as\-code (CI/CD pipelines, Terraform, CDK, etc.). * Event\-driven architectures (SQS/SNS, Kafka, etc.). * Security \& compliance frameworks (HIPAA, SOC 2, LGPD). * Observability and monitoring tools (Sentry, Datadog, Prometheus). What We Offer * Competitive compensation. * Ownership over backend and infrastructure strategy. * Opportunity to work with a modern, forward\-looking tech stack. * Mission\-driven team with a collaborative and supportive culture. * Flexible remote work options. Even if this role isn’t the perfect fit, follow our journey — HosTalky is just getting started. 👉 Follow HosTalky on LinkedIn and join the movement to fix the disconnect in healthcare.