Database Engineer (MariaDB / SQL)

Overview

At SHJ International, we're building a next-generation cloud-based Transportation
Management System (TMS) used by logistics companies across North America.
Our platform processes thousands of shipments daily using a microservices architecture, event-driven processing, and modern cloud infrastructure. We're looking for an experienced Database Engineer who enjoys solving complex data challenges and building highly reliable, scalable database systems.

Job Description

What You'll Do

● Design and maintain highly scalable relational databases.
● Build efficient database schemas for enterprise applications.
● Optimize complex SQL queries and stored procedures.
● Design indexing strategies for high-performance applications.
● Monitor database performance and eliminate bottlenecks.
● Implement replication, backups, disaster recovery, and high availability.
● Tune databases handling millions of records.
● Work closely with software engineers to improve application performance.
● Design partitioning and archival strategies for large datasets.
● Manage database security, permissions, and auditing.
● Review application database designs before production deployment.
● Troubleshoot production database issues with minimal downtime.
● Support DevOps teams with database deployments and migrations.

Required Skills

● 4+ years of experience as a Database Engineer or DBA.
● Strong expertise in MariaDB, MySQL, or PostgreSQL.
● Excellent SQL query writing and optimization skills.
● Deep understanding of:
○ Indexing
○ Query execution plans
○ Transactions
○ Locking
○ Deadlock analysis
○ Isolation levels
● Experience with database replication and failover.
● Knowledge of backup and recovery strategies.
● Experience designing normalized and denormalized schemas.
● Strong understanding of data integrity and constraints.
● Experience working with high-volume production databases.

Good to Have

● MariaDB MaxScale
● Galera Cluster
● ProxySQL
● Redis
● RabbitMQ
● Docker
● Kubernetes
● AWS / Azure / GCP
● Grafana & Prometheus
● Liquibase or Flyway
● OpenSearch or Elasticsearch
● Spring Boot database optimization

We'd Love Someone Who Understands

● Database architecture
● Multi-tenant applications
● Microservices data design
● Event-driven systems
● High concurrency systems
● Read/write database separation
● Performance tuning
● Database scaling strategies
● Data migration
● Audit logging
● Reporting databases

What Success Looks Like

You'll help us build a database platform capable of supporting:
● Millions of shipment records
● Thousands of concurrent users
● High-performance search
● 24×7 production availability
● Reliable replication and failover
● Secure enterprise-grade data management

Why Join SHJ International?

● Build a real enterprise SaaS platform from the ground up.
● Work on challenging database architecture problems.
● Modern tech stack with microservices and cloud infrastructure.
● Opportunity to influence system architecture.
● Collaborative engineering culture focused on performance and quality.

Ideal Candidate Profile

You're not just someone who writes SQL—you think about how data should be modeled, stored, indexed, replicated, and scaled. You enjoy analyzing slow queries, solving performance bottlenecks, designing resilient database architectures, and ensuring applications remain fast and reliable as data grows. Experience with enterprise logistics, ERP, finance, or other high-volume transactional systems would be a strong advantage.

Skills & Requirements

Apply Now