01Overview
MeridianSquare.Global is building CubeSquare, our Digital Property Infrastructure platform for regulated real-estate tokenization, initially focused on the UAE and expanding into international markets.
We are looking for hands-on
Lead Backend & Database Engineers
to take ownership of CubeSquare's backend services and PostgreSQL data architecture.
This is not a pure architect or DBA role. We need someone who can
design the schema, define the API, write production code, optimize the database, and troubleshoot the system in production.
You will work closely with our Lead Full Stack Engineers, Frontend Developers, UI Designers and product/architecture leadership.
What You'll Do
Design and build backend services using
Node.js and TypeScript
Own the
PostgreSQL schema
from design through production
Build secure, versioned REST APIs
Design data models for investors, identity/KYC, properties, ownership, transactions, wallets, documents and audit records
Implement database constraints, indexes, transaction boundaries and referential integrity
Optimize PostgreSQL using
EXPLAIN / EXPLAIN ANALYZE
, indexing and query profiling
Diagnose slow queries, N+1 patterns, locking, concurrency and connection-pool issues
Design safe, reversible database migrations
Build multi-tenant data isolation and authorization into the platform
Implement financial-grade patterns including
idempotency, reconciliation, immutable audit history and transaction integrity
Build integrations with external KYC/KYB, custody, payment, banking and blockchain infrastructure
Integrate with institutional infrastructure including
Fireblocks
and KYC/KYB providers
Implement secure authentication, authorization, RBAC and protection of PII/financial information
Work with AWS services including RDS/Aurora PostgreSQL, S3, ECS, IAM, CloudWatch and Secrets Manager
Establish backend engineering, database and API standards as CubeSquare scales
Required Qualifications
47+ years
of professional backend engineering experience
At least
2 years owning production PostgreSQL schema design and performance
Strong
Node.js + TypeScript
production experience
Deep PostgreSQL knowledge including:
schema design
advanced SQL
constraints
indexing
transactions
concurrency/locking
EXPLAIN / EXPLAIN ANALYZE
migrations
Experience designing a production relational schema
from scratch
Experience with
Prisma
or another modern ORM, with the ability to use raw SQL where appropriate
Experience building secure REST APIs
Experience with multi-tenant applications and tenant data isolation
Experience integrating complex third-party APIs using OAuth/tokens, webhooks, retries, rate limits and failure recovery
Understanding of idempotency, reconciliation and auditability in financial or transactional systems
AWS, Docker, Git and CI/CD experience
Strong understanding of application security and protection of PII and financial data
Preferred
Fintech, payments, investment, digital assets or regulated SaaS experience
Redis and asynchronous/event-driven processing
SQS, RabbitMQ or Kafka
KYC/KYB integrations
Fireblocks or institutional custody API experience
Observability using CloudWatch, OpenTelemetry, Grafana, Datadog or similar
Experience using AI-assisted development tools while independently reviewing and validating generated code, SQL and architecture
Blockchain/Solidity/ERC-3643 development is not required.
Smart-contract development is a separate specialist function. .
