We are seeking a Principal Engineer to be the technical owner of the next-generation payroll tax platform. You will set the architecture and engineering direction, lead a five-person engineering team, and lead the transition of the codebase into AWS environment. You will make sure the platform is secure, compliant and ready for every filing deadline, and shape the roadmap with product and tax operations leaders in the US and India.

Our stack is Vue.js with Capacitor.js on the front end, .NET 8 (C# Minimal Web API) running serverless on AWS Lambda, PostgreSQL with Entity Framework Core, and AWS API Gateway and S3, with SFTP/REST integrations and CloudWatch/OpenTelemetry observability.

Technical Leadership & Architecture:

- Own end-to-end architecture across Vue.js/Capacitor, .NET 8 on AWS Lambda, API Gateway, S3 and PostgreSQL
- Define the multi-tenancy, scalability and data strategy, including partitioning, read replicas and data retention
- Write and maintain architecture decision records and set standards for code, testing, security and release
- Represent the product in architecture forums across all product lines (PEO, HCM, Payroll)
- Platform Transition:
- Lead the code and environment transition: repository migration, AWS account and network design, CI/CD
- Own cutover planning, parity testing and rollback strategy
- Manage technical risks and dependencies with the outgoing development partner

Security, Compliance & Reliability:

- Own non-functional requirements: availability, performance at quarter-end peaks, disaster recovery and cost
- Ensure the platform meets security and audit needs: PII encryption, key management, access control and SOC 1/SOC 2 evidence




- Drive resolution of critical production issues and blameless post-incident reviews

People & Stakeholder Leadership:

- Hire, mentor and grow the PTM engineering team
- Partner with product management and tax operations to plan compliance updates and new capabilities
- Communicate clearly with US-based executives and cross-functional partners

Required Skills & Experience:

Engineering & Architecture:

- 12+ years of software engineering, with 4+ years as an architect or technical lead of a production SaaS platform
- Expert-level .NET/C# and deep experience designing distributed systems
- Proven experience with PostgreSQL at scale, multi-tenant SaaS design and data partitioning
- Strong understanding of modern front-end architecture (Vue.js, React or Angular)

Cloud & DevOps:

- Deep AWS experience: serverless (Lambda), API Gateway, S3, IAM and VPC networking
- Hands-on with infrastructure as code (Terraform, CDK or SAM), CI/CD and DevSecOps practices
- Strong grasp of observability (CloudWatch, OpenTelemetry) and production operations

Leadership:

- Experience leading a platform migration, vendor handover or major re-architecture to completion
- Track record of building and leading high-performing engineering teams

Good to Have:

- Deep payroll tax, payroll or PEO/HCM domain knowledge
- Experience with regulated or financial systems (SOC 1/SOC 2, IRS requirements, PCI)
- AWS Solutions Architect Skilled or equivalent certification
- Experience bringing AI-assisted engineering practices into a team

Education:

- Bachelor's or Master's degree in Computer Science, Engineering or equivalent practical experience

📌 Principal Software Engineer (Noida)
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