Full Stack Engineer

We are looking for a senior-leaning Full Stack Engineer to join the team building and maintaining a multi-location childcare and educational facility management platform used daily by administrators, directors, teachers, and families across a growing network of locations. The platform manages complex financial, enrollment, medical, and operational data across multiple tenants and requires careful, deliberate data modeling. This is a hands-on engineering role with high ownership. You will collaborate closely with product, operations, and business stakeholders, not just the engineering team. Clear communication, proactive status updates, and a bias toward execution over perfection are as important here as technical skill. Qualifications:

• Bachelor's degree in Computer Science, Engineering, or a related field
• 6+ years of proven experience as a Full Stack Engineer or in a similar role
• Strong proficiency in TypeScript and JavaScript, including Node.js, NestJS, and React
• Expert-level relational database skills: schema design, normalization, indexing, query optimization, and migrations with PostgreSQL and TypeORM
• In-depth knowledge of database management and ORM tools; fluency with TypeORM migrations as a first-class part of the development workflow
• Experience with background job processing using BullMQ, Bull, or similar Redis-backed queue systems
• Experience with Docker and cloud deployments (AWS preferred)
• Familiarity with modern software architecture patterns including modular monoliths and multi-tenant SaaS
• Excellent problem-solving skills with strong attention to correctness and long-term maintainability
• Strong written and verbal communication skills; demonstrable habit of proactive status sharing and stakeholder management
• Ability to own a workstream end-to-end, requirements clarification, execution, delivery visibility, with minimal hand-holding Preferred:
• Experience with financial data modeling: ledger systems, billing flows, payment processor integrations (Authorize.net, Stripe, etc.)
• Familiarity with audit trail patterns and entity change-tracking libraries (e.g., `typeorm-auditing`)
• Experience with multi-tenant SaaS architecture and tenant-scoped data isolation at the schema level
• Background in AWS services (S3, IAM, presigned URLs)
• Exposure to childcare, education, healthcare, or other regulated operational domains
• Experience optimizing complex multi-join queries and resolving N+1 problems at scale
• Experience with AI and LLMs, specially using Agents for development.
• Previous experience with application scaling and performance optimization
• Project Development & Problem Solving
• Lead and participate in the design, development, and deployment of full-stack features end-to-end, from schema design to UI
• Tackle challenging problems across billing, enrollment, scheduling, and operational domains- Identify technical issues early, escalate proactively, and implement pragmatic solutions
• Engage in continuous learning to stay updated on industry trends and technologies
• Backend Development
• Design and develop RESTful APIs using NestJS and TypeScript, organized across a large feature-module architecture (66+ modules)- Design and evolve a complex PostgreSQL schema 141+ entities, 500+ ORM relationships, 328+ versioned migrations, across billing, enrollment, medical, and operational domains
• Write complex query builder logic and optimize multi-join queries across a deeply relational data model- Handle database migrations and rollback operations using TypeORM, maintaining zero-downtime constraints on a live production schema- Implement efficient background job processing using BullMQ and Redis (billing, account status, ledger sync, class cancellation, and more)
• Implement and maintain role-based access control with 8 roles, 116+ granular permissions, and region/facility-based multi-tenancy- Integrate third-party services: Authorize.net (payments), AWS S3 (file storage), Azure MSAL (SSO), Nodemailer (email), Sentry (error tracking)
• Write clean, maintainable, well-tested code with attention to performance, security, and scalability- Understand and implement tokenization and authentication mechanisms including JWT, refresh tokens, and SSO flows
• Frontend Development
• Develop and maintain React (TypeScript) frontend features in a separate repository
• Build data-heavy admin UIs: complex forms, tables, filters, pagination, multi-step workflows
• Debug and optimize frontend code for performance and cross-browser compatibility
• Consume REST APIs and manage async state effectively
• Database Design: A Core Requirement of This Role
• Design schemas that are normalised, queryable, and maintainable, not just ones that work today
• Apply deep knowledge of PostgreSQL: indexes (B-tree, partial, composite), query planning, EXPLAIN/ANALYZE, lock behaviour, and transaction isolation
• Model financial data correctly: ledger patterns, transaction integrity, precision arithmetic- Implement audit trail patterns, soft deletes, and multi-tenant data isolation at the schema level- Manage a long-lived production schema with hundreds of migrations and evolving business requirements
• Scalability & Architecture
• Design scalable architectures with an understanding of both vertical and horizontal scaling
• Work within a modular monolith NestJS architecture with a separate background worker process- Apply a two-level multi-tenancy model (Region → Facility) consistently across services and data layers
• Leverage Redis for caching and BullMQ for async job processing with concurrency control and retry handling
• Debugging & Testing
• Utilise debugging tools and techniques for both frontend (React) and backend (Node.js/NestJS) applications
• Write and maintain unit and integration tests using **Jest** to ensure code reliability and correctness
• Handle error management and edge case coverage, particularly in billing and enrollment flows
• Event-Driven & Asynchronous Programming
• Understand and implement event loops and execution stacks in JavaScript/TypeScript projects correctly
• Manage asynchronous operations using promises and async/await patterns- Implement scheduled tasks and cron jobs via `@nestjs/schedule` for automated nightly processes.
• Communication & Stakeholder Collaboration
• Provide frequent, proactive progress updates to technical and non-technical stakeholders, without being asked
• Escalate blockers and scope gaps early and transparently rather than absorbing delays silently
• Clarify requirements upfront, confirm understanding before building, and manage delivery expectations clearly
• Translate technical constraints into plain language for business stakeholders
• Maintain continuous visibility into project status: what is done, what remains, and realistic delivery timelines