Senior Software Engineer (Full Stack)

We're looking for a Senior Software Engineer to join our engineering team and help build and scale a modern, data-intensive B2B SaaS platform. You'll work across the full stack - designing robust backend APIs, and contributing to a polished Angular frontend - while collaborating closely with product, design, and fellow engineers.

This is a high-ownership role. You'll be involved in architectural decisions, code reviews, and shaping engineering standards, not just executing tickets.

What You'll Do

• Design, build, and maintain scalable backend services using Node.js, Express.js, and TypeScript
• Develop and maintain frontend features in Angular, working closely with designers to deliver clean, performant UIs
• Contribute to API design, ensuring consistency, security, and maintainability
• Design database schemas, write migrations, and optimize query performance across PostgreSQL and SQL Server
• Participate in system design discussions and help define technical direction for new features
• Write well-tested, reviewable code and actively participate in code reviews
• Diagnose and resolve performance bottlenecks across the stack
• Implement security best practices - JWT auth, rate limiting, input validation, prompt shielding
• Own production reliability - PM2 process management, graceful shutdown, health checks, structured logging
• Collaborate cross-functionally with product managers, QA, and other engineers in an agile environment

• 4+ years of professional software engineering experience
• Strong proficiency in Node.js with a solid understanding of the async/event-driven model
• Production experience with Express.js - middleware chains, request lifecycle, error handling
• Fluency in TypeScript - you default to it, not tolerate it
• Hands-on experience building and maintaining Angular applications (v12+)
• Solid understanding of REST API design principles
• Familiarity with relational databases (SQL Server, PostgreSQL, or similar)
• Experience with version control workflows (Git, PR-based development)

Nice to Have

• Experience building streaming APIs (SSE, chunked transfer encoding)
• Experience with authentication patterns (JWT RS256, OAuth 2.0, SAML)
• Exposure to cloud platforms (Azure, AWS, or GCP)
• Container experience (Docker, Azure Container Instances)
• In-memory caching strategies (TTL-based, firm-scoped)
• Knowledge of observability tooling (logging, tracing, APM)
• Experience in a B2B SaaS or fintech environment

• Opportunity to work on a product used globally by top investment teams
• Supportive, growth-minded engineering culture
• Competitive Compensation
• Medical Insurance
• Wellness Reimbursement
• Generous Paid Time Off Policy
• Work from Home
• Exciting Team Offsites
• Reward & Recognition Program

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At DiligenceVault , we've built the leading technology platform transforming how due diligence is conducted globally. Our platform helps organizations streamline and digitize highly manual diligence workflows through automation, data intelligence, and scalable infrastructure. Today, our network includes over 100,000 users across 150+ countries, helping firms improve efficiency, transparency, and decision-making at scale. We are growing rapidly and looking for exceptional engineers who enjoy solving complex technical problems and building systems that operate at global scale., DiligenceVault is a provider of mutualized data and tech platform for fund investing research.