Gushcloud International
Singapore / Global
Full Stack Engineer
- Remote
Singapore / Global
Full Stack Engineer Location: Hybrid | Type: Contract / Outsourced , Full-time hours
About the Role
We're looking for a Full Stack Engineer to help build and scale AI-powered software products and automation solutions used by enterprise clients. You'll work on a modern development platform that supports multiple products and projects, with a strong focus on rapid product development, automation, and scalable architecture.
The core platform is built on a NestJS backend and extended through custom modules covering authentication, billing, CRM, task management, and document workflows. The technology stack includes TypeScript/NestJS, Python service workers, and AWS infrastructure (Aurora PostgreSQL, SSM, Secrets Manager, and CDK).
In this role, you'll own new features end-to-end—from API design and backend services to dashboard implementation and deployment. You'll work across both the core platform and a variety of active product initiatives and client-facing projects, helping shape technical decisions and deliver impactful solutions.
What You'll Own
Backend
Extend the NestJS core and custom module system
Write Prisma migrations against Aurora Serverless v2
Build and harden API endpoints: DTO validation, auth guards, rate limiting, input sanitization
Own notification dispatch pipelines (email, SMS, voice)
Extend the billing ledger: usage caps, per-feature cost tracking, period management, reconciliation
Infrastructure & Security
Operate AWS: CDK stacks (VPC, Aurora, Redis, S3 with KMS CMK, CloudTrail, GuardDuty, SSM session logging)
Identify and close attack surfaces: auth bypass paths, over-permissioned roles, unvalidated inputs, insecure defaults
Dashboard / Frontend
Work in iOS environments
Manage Next.js App Router, Tailwind CSS across platforms
Run QA processes
Manage all support tickets / bug fixes across platforms
Required Experience
4+ years TypeScript: NestJS (or equivalent decorator-based framework), Prisma, REST API design, DTO validation, guard/interceptor patterns
Python: async service workers; you can read and extend a data processing or inference loop
AWS: IAM, Aurora PostgreSQL, SSM Session Manager, Secrets Manager, KMS, S3
PostgreSQL: real migrations, row-level security, comfortable with EXPLAIN ANALYZE
System operations: ssh, rsync, launchd/systemd, debugging a remote production node without GUI tools
Ability to own a task end-to-end with minimal hand-holding
Nice to Have
AWS CDK (TypeScript constructs)
Redis pub/sub or BullMQ
Pgvector or any embedding / vector similarity work
Apple Silicon / MLX or ONNX Runtime experience
Next.js App Router, Tailwind CSS
Experience deploying to physical on-premises hardware, not just cloud infrastructure
Prior work on compliance-adjacent systems (FedRAMP, SOC 2, HIPAA, CJIS, or equivalent)
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