OVERVIEW
We are seeking a Lead Software Engineer (Backend / Integrations) to anchor the backend workstream of a contractor program supporting a critical customer engagement: a state government professional licensing and regulatory compliance platform built on Google Cloud. This is a hands-on technical leadership role. The successful candidate owns the architecture of the core platform services and the external integration layer, sets the engineering standards the backend team works to, and remains in the codebase day to day. They will work closely with the client technical lead, the mobile and frontend engineers, and customer stakeholders to ensure project success from initial definition through final delivery.
Expected start date: 5 October 2026.
REQUIRED CREDENTIALS
• 10+ years of professional backend engineering experience with Java and Spring Boot
• Demonstrated technical leadership of a backend team or workstream — setting architecture, reviewing code, and mentoring engineers — while still contributing production code
• Production delivery experience on Google Cloud Platform, with ownership of a system through design, launch, and operation
• Bachelor's degree in Computer Science or equivalent practical experience
REQUIRED QUALIFICATIONS
• Java 21 and Spring Boot 3.x microservice development
• Service and API design across a multi-service platform, including contract and versioning strategy
• PostgreSQL, including schema design, indexing, and versioned migrations
• GCP serverless services: Cloud Run, Pub/Sub, Cloud Tasks, Cloud Workflows, Cloud Scheduler
• Event-driven architecture and messaging patterns (idempotency, retries, dead-letter handling)
• External system integration over REST, SOAP, SFTP, and webhooks
• API security with OAuth 2.0 / OIDC and JWT
• Automated testing (JUnit, integration tests), CI/CD, and the quality standards that govern them
• Working directly with non-engineering stakeholders to turn requirements into a delivery plan
USEFUL QUALIFICATIONS
• Workflow engines (Flowable, BPMN) and business rules engines
• AlloyDB, BigQuery
• Payment processing integrations
• Experience in government or regulated environments (FIPS, CJIS, HIPAA)
• Google Cloud Professional certifications
• Prior experience leading a distributed or contractor engineering team
SCOPE AND SOLUTION EXPECTATIONS
Below covers the scope of work we anticipate the contractor supporting throughout the project timeline.
• Own the backend architecture: service boundaries, data model, event contracts, and the integration layer design
• Design and implement Java 21 / Spring Boot microservices on Cloud Run (licensing, case management, payments, documents, notifications)
• Implement PostgreSQL (AlloyDB) persistence, including row-level data isolation and search indexing
• Build asynchronous event flows on Pub/Sub and Eventarc
• Implement scheduled and timer-driven processing with Cloud Tasks and Cloud Scheduler (renewal reminders, expiration sweeps, reconciliation)
• Author Cloud Workflows orchestrations for multi-service pipelines
• Direct the build-out of integrations with external state and federal systems over REST, SOAP, SFTP, and webhooks
• Oversee payment flows, including hosted payment page integration and settlement reconciliation
• Own platform security and compliance outcomes for encryption and data isolation
• Set and enforce test coverage, code review, and CI/CD standards across the backend team
• Break down the backend scope, sequence the work, and report delivery status to the client technical lead and customer stakeholders
• Mentor engineers on the team and support technical onboarding of new contractors
Skills Required
- 10+ years of professional backend engineering experience with Java and Spring Boot
- Technical leadership of a backend team or workstream, including architecture, code reviews, mentoring, and production coding
- Production delivery experience on Google Cloud Platform with ownership through design, launch, and operation
- Bachelor's degree in Computer Science or equivalent practical experience
- Java 21 and Spring Boot 3.x microservice development
- Service and API design across a multi-service platform, including contract and versioning strategy
- PostgreSQL schema design, indexing, and versioned migrations
- Experience with GCP Cloud Run, Pub/Sub, Cloud Tasks, Cloud Workflows, and Cloud Scheduler
- Event-driven architecture and messaging patterns including idempotency, retries, and dead-letter handling
- External system integration over REST, SOAP, SFTP, and webhooks
- API security using OAuth 2.0, OIDC, and JWT
- Automated testing, integration tests, CI/CD, and engineering quality standards
- Ability to work with non-engineering stakeholders to translate requirements into delivery plans
- Experience with workflow engines such as Flowable or BPMN and business rules engines
- Experience with AlloyDB and BigQuery
- Payment processing integration experience
- Experience in government or regulated environments, including FIPS, CJIS, or HIPAA
- Google Cloud Professional certification
- Experience leading distributed or contractor engineering teams
What We Do
Ontrac Solutions helps organizations adopt emerging technologies to scale smarter. We build GenAI platforms, predictive analytics solutions, and drive cloud adoption. We're also a HubSpot partner, supporting landing page design, website development, CRM integration, workflows, and automation. From infrastructure to marketing ops, we deliver strategy and execution that drives growth.






