Senior Software Engineer - 3+ Years

Position Overview Techdome develops mission-critical platforms in healthcare and financial services, where accuracy, security, and uptime are non-negotiable. We are seeking a Senior Software Engineer to design, build, and sustain production-grade applications using Node.js, React, MongoDB, and TypeScript, and to take lasting accountability for their performance. Key Responsibilities Lead the full lifecycle of features, from design through deployment and ongoing maintenance Engineer secure, scalable, and well-tested APIs and applications Perform code reviews and uphold engineering standards across the team Resolve production incidents directly and perform root-cause analysis Participate in architectural planning and technical decision-making Coach and mentor engineers within the team Collaborate with product, design, QA, and DevOps, and work with cloud infrastructure, CI/CD, containerization, and observability tools Minimum Qualifications At least 3 years of professional software engineering experience Demonstrated proficiency in Node.js, React, MongoDB, and JavaScript/TypeScript Working knowledge of REST API design, database architecture, authentication and authorization, testing, and application security Proven experience operating production applications at scale Practical experience with AWS, GCP, or Azure Familiarity with CI/CD, Git, Docker, and production monitoring and debugging Experience in a regulated industry such as healthcare, fintech, banking, payments, or insurance Strong initiative and a record of taking ownership Preferred Qualifications Knowledge of system design, distributed systems, microservices, and event-driven architectures Exposure to Kubernetes and infrastructure-as-code Familiarity with HIPAA/PHI, PCI-DSS, or payment platforms (Stripe, Braintree, Adyen) Experience in consulting or product studios supporting multiple clients and products Experience with AI-assisted development tools (Claude Code, Cursor, GitHub Copilot) About Techdome A bootstrapped, profitable company with 80+ engineers across five global hubs. Free from investor-driven pressures, we focus on building meaningful healthcare and fintech systems and give our engineers genuine influence over technical direction.