Senior Database Engineer (PostgreSQL)

Location: Remote (U.S.) or Hybrid *

Team: Engineering *

Reports to: Senior Director of Engineering * Partners with: Lead Software Architect and Lead Software Engineer

About this role

We're building a cloud-native SaaS platform for hospitals and healthcare providers. You'll be the PostgreSQL expert partnering with our Lead Software Architect to design, build, secure, and scale a multi-tenant data platform that powers our .NET services and React + Fluent UI applications-running on AWS and operating under HIPAA.

What you'll do

• Own the database architecture for a multi-tenant SaaS: select and implement tenancy model(s) (e.g., RLS per tenant, schema-per-tenant, or database-per-tenant), design schemas, and define migration/versioning strategies for safe, zero-downtime releases.

• Raise the performance ceiling: index strategies, partitioning, connection pooling (e.g., PgBouncer), query tuning (EXPLAIN/ANALYZE), caching patterns, and workload isolation for noisy-neighbor control.

• Build for reliability: set RTO/RPO targets; design backup, PITR, DR, and blue/green or expand-migrate-contract rollout patterns.

• Embed security & compliance: encryption in transit/at rest, least-privilege access, secrets management, audit logging, PHI handling, and HIPAA-aligned controls and documentation.

• Productionize on AWS: stand up and tune Aurora/RDS for PostgreSQL; integrate VPC, subnets, SGs, KMS, CloudWatch/CloudTrail; advise on ECS/EKS/Fargate service patterns that affect DB workload.

• Level-up developer experience: define database interfaces for .NET services (EF Core/Dapper), enforce SQL and migration conventions, and enable efficient local/dev/test workflows (containers, seed data).

• Test like you mean it: establish automated database testing-pgTAP or equivalent for unit tests, migration tests in CI, and load/perf testing harnesses (e.g., pgBench/k6) tied to release criteria.

• Observability & SLOs: build dashboards and alerts for latency, throughput, autovacuum, bloat, locks, and error budgets; drive incident reviews and continuous tuning.

• Partner & influence: work shoulder-to-shoulder with our architect, app engineers, QA, and security to ship features that are correct, fast, and safe-while advocating best practices.

• AI First Mentality: Use modern AI tools to draft queries/migrations/tests, explain query plans, generate fixtures, and accelerate root-cause analysis-responsibly and securely.

Tech you'll touch

• Database: PostgreSQL (JSONB, RLS, partitioning, logical replication), PL/pgSQL, pg_stat_statements, extensions as needed.

• AWS: Aurora PostgreSQL / RDS, KMS, Secrets Manager/Parameter Store, CloudWatch, CloudTrail, IAM, S3; (nice: Lambda, ECS/EKS/Fargate).

• Platform & CI/CD: Docker, GitHub Actions/CodeBuild/CodePipeline, IaC (Terraform or CloudFormation), feature flags.

• Testing/Perf: pgTAP (or similar), pgBench, k6/Gatling/JMeter, EXPLAIN/ANALYZE, pgbouncer/pgpool.

What you'll bring

Must-haves

• 7+ years owning PostgreSQL in production at scale for a SaaS product.

• Demonstrated expertise in multi-tenant design (RLS, schema or DB-per-tenant), with opinions on trade-offs.

• Proven track record of query and schema optimization, indexing, partitioning, and connection management.

• Hands-on experience running PostgreSQL on AWS (Aurora or RDS) and tuning for throughput & cost.

• Strong security mindset: access control, secrets, encryption, auditing; experience operating under compliance frameworks (HIPAA preferred, but experience within any regulated industry).

• Experience enabling .NET services to use Postgres effectively (EF Core, Dapper, migrations).

• Habit of building automated testing for databases and performance/load gating in CI/CD.

• Excellent communicator who can write clear design docs, propose standards, and influence cross-functional teams. Ability to speak up and express opinions or concerns in a positive and constructive manner.

• AI First Mentality on developing schema design, migration strategies and automated testing for performance.

Nice-to-haves

• Healthcare/HIPAA domain experience or any regulated industry (BAAs, audit readiness, PHI data handling).

• Experience with zero-downtime migration patterns, logical replication, change data capture.

• Exposure to data warehousing/analytics pipelines or near-real-time eventing.

• PostGIS, TimescaleDB, or other Postgres extensions in production.

• Oracle experience as current database schema resides within Oracle

• Migration experience from one database system to another.

Soft skills we value

• Technologist at heart: curious, pragmatic, and energized by learning-and by applying new tech and AI tools to deliver value faster.

• Security & quality advocate: champions best practices without slowing the team.

• Ownership & bias for action: you sweat the details, unblock yourself, and ship.

• System thinker: balances correctness, performance, and operability; designs for the "2 a.m. page."

• Collaborative & kind: brings others along-mentors, documents, and gives/receives feedback well.

What success looks like (first 90-120 days)

• A documented tenancy and migration strategy aligned with product roadmap.

• Baseline performance SLOs and dashboards with actionable alerts.

• CI/CD checks that run DB unit tests, migration tests, and load tests per PR/release.

• Measurable latency/throughput improvements on critical paths and a plan for continuous tuning.

• A clear security posture: role model, secrets rotation plan, audit logging, and DR runbook.

#LI-VL1

Jonas Software is the leading provider of enterprise management software solutions to the Country and Golf Clubs, Foodservice, Construction, Fitness & Sports, Attractions, Salon & Spa, Education, Radiology/Laboratory Information Systems, and Product Licensing industries. Within these vertical markets, Jonas is made up of over 65 distinct brands, which are respected and leaders within their own domain.

Jonas' vision is to be the branded global leader across the aforementioned vertical markets and to be recognized by customers and respective industry stakeholders as the trusted provider of 'Software for Life' and as an ambassador for technology, product innovation, quality, and customer service.

Jonas Software is the valued technology partner of over 60,000 customers worldwide in more than 30 countries. Jonas employs over 2,000 skilled individuals consisting of a cross-section of industry experts and technology professionals. Jonas is headquartered in Canada and also operates offices throughout North America, the United Kingdom, Europe, Australia New Zealand and Africa. Jonas is a 100% owned subsidiary of Constellation Software Inc., headquartered in Toronto and traded on the S&P/TSX 60.