Senior full-stack engineering experience in TypeScript/Node, React, Express with ownership of large-scale production applications.
Strong backend discipline in financial domains such as GL, AR/AP, payroll, and tax in multi-tenant SaaS environments.
Extensive cloud engineering experience on Azure and/or AWS, including infrastructure-as-code and cost optimization.
Experience in data migration and ETL processes at scale, focusing on schema canonicalization and reconciliation.
Proficient in CI/CD practices, blue-green deployment, and managing production incident responses.
Familiarity with AI-assisted development and best practices in leveraging LLM agents.
Leadership experience in engineering environments, including release gatekeeping and executive representation.
Responsibilities
Own the technical direction of the Total Service Cloud ERP system, ensuring backend correctness and maintaining high release standards.
Drive functional parity between legacy and cloud ERP platforms across multiple modules, ensuring accuracy during migration.
Manage cloud architecture and operations for multi-tenant customers using Azure and AWS, focusing on cost governance and optimization.
Oversee end-to-end migration processes including ETL pipelines and data fidelity checks, ensuring smooth transitions for customers.
Direct the implementation of AI in the software development lifecycle while maintaining quality and accountability for outputs.
Lead the engineering team through daily standups, technical reviews, and manage resource allocations for projects.
Interface with key customers during onboarding and go-live phases, ensuring successful implementation of services.
Benefits
Work within a cutting-edge tech environment focused on cloud and AI innovations.
Participate in the governance of significant cloud infrastructure with proven cost-saving initiatives.
Lead transformative migration projects that modernize legacy systems into scalable environments.
Engage with an engineering team that values technical leadership and collaborative problem-solving.
Opportunity to influence the product development and customer success strategy at an enterprise level.
Full Job Description
Job Description:
What You'll Own
Platform & Product Engineering
Technical ownership of the Total Service Cloud ERP - TypeScript/Node, React, Express, Drizzle ORM on PostgreSQL, Vite, Vitest, Playwright - across features, backend correctness, and release engineering.
Functional parity between the legacy desktop ERP and the cloud platform: a module-by-module program across Payroll, AR, AP, GL, Job Cost, Inventory, Dispatch, Sales, Purchasing, Reporting, and Banking, audited and carried to release-verified.
The highest-stakes correctness work: general-ledger posting and reversals, payroll tax wage bases, US and Canadian tax handling, multi-tenant isolation, and permission enforcement.
ERP-wide UX standards - authoring the conventions and holding every module to them.
Continuity of the legacy systems that still serve customers, including a Java/Spring service layer and the VB6 desktop ERP.
Cloud architecture and operations across Azure and AWS for a multi-tenant customer fleet: App Service slots, PostgreSQL Flexible Server, Key Vault, Front Door, managed identity, and infrastructure-as-code (Bicep).
Release and deploy infrastructure: CI/CD in GitHub Actions, blue-green UAT on refreshed masked databases, deploy gates, and slot-swap workflows.
Cloud cost governance - you own the spend, the forecast, and the optimization backlog. Recent work in this seat cut monthly Azure spend by roughly half.
Production incident response: error triage, root-cause analysis, fleet-wide architectural calls, and uptime accountability.
Legacy-to-Cloud Migration
End-to-end ownership of the migration program: the canonical tenant matrix, the Python/SQL Server PostgreSQL ETL pipeline, schema canonicalization, and data-fidelity reconciliation.
Customer production imports and go-lives, and final escalation ownership for migration data issues.
The decommissioning path for the legacy platform, coordinated with infrastructure and legacy-ERP peers.
AI in the Software Lifecycle
Architecture and operation of our multi-agent development pipeline (ClickUp Claude Code GitHub PR), including the decisions that keep it auditable and the per-task economics that keep it affordable.
Accountable authorship for AI-assisted output - the pipeline accelerates the work; you own the result.
Representing the business unit as a practitioner on AI in the SDLC, internally and to sister companies across the Constellation group.
Leadership & Representation
Lead the engineering team: chair standups and technical syncs, author specs, split and review work, and act as merge and release gatekeeper.
Direct QA and contractor staffing and resourcing.
Run customer-facing onboarding and go-live directly for named accounts.
Report the business unit's R&D and AI initiatives upward to Jonas/Constellation, and participate in cross-business-unit technical forums.
Evaluate vendors and drive business-unit IT, security, and tenancy decisions.
What We're Looking For Required
Senior full-stack engineering depth in TypeScript/Node (React, Express, an ORM against PostgreSQL) with demonstrated ownership of a production application at meaningful scale.
Strong backend correctness discipline in financial or accounting domains - GL, AR/AP, payroll, or tax - and in multi-tenant SaaS security (authorization, tenant isolation).
Substantial cloud engineering experience on Azure and/or AWS, including infrastructure-as-code, secrets and identity management, and cost optimization.
Data migration and ETL experience: relational-to-relational at fleet scale, with schema canonicalization and reconciliation.
DevOps and release engineering: CI/CD, blue-green or slot-based deployment, migration safety, and production incident response.
Practical experience with LLM agents or AI-assisted development, and sound judgment about where to trust them and where not to.
Technical leadership: leading engineers, setting standards, gatekeeping releases, and representing engineering to executives and customers.
Comfort working with legacy code you did not write, and the pragmatism to keep it running while replacing it.
Preferred
Field-service, elevator, door, or HVAC ERP domain experience.
Experience inside the Jonas Software / Constellation operating model.
Mobile release engineering (Android, Play Console, signing and keystore management, crash observability).
Java or Java/Android maintenance experience.
Enterprise identity and tenancy administration (Entra/SSO, Microsoft 365, email security tooling).
.NET/C# familiarity for auxiliary services.
Our Stack
Languages & frameworks: TypeScript/Node, React, Express, Drizzle ORM; Python; Java/Spring; Java/Android; VB6; PowerShell; some .NET/C#
