OnTrac

Lead Software Engineer - Backend Engineering (Core) / Integrations

OnTrac$135K — $160K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 10+ years of backend engineering experience with Java and Spring Boot
  • Proven technical leadership experience managing a backend team and contributing code
  • Experience delivering production applications on Google Cloud Platform
  • Bachelor's degree in Computer Science or equivalent practical experience
  • Proficient in service and API design, event-driven architecture, and external system integrations

Responsibilities

  • Own the backend architecture, including service boundaries and integration layer design
  • Design and implement microservices using Java 21/Spring Boot on Cloud Run
  • Implement PostgreSQL persistence with proper data isolation and indexing
  • Build asynchronous event flows using Pub/Sub and Eventarc
  • Oversee integration with external systems using multiple protocols
  • Ensure platform security and compliance with data encryption standards
  • Mentor team engineers and facilitate onboarding of new contractors

Benefits

  • Work on a significant government project impacting public licensing and regulatory processes
  • Opportunity to lead a talented team and shape backend engineering practices
  • Engagement with diverse stakeholders including government officials and technical clients
  • Access to state-of-the-art cloud technologies like Google Cloud and modern architectural frameworks
  • Flexibility in working arrangements with potential for distributed team leadership
Full Job Description
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

About OnTrac

OnTrac is a courier and delivery service that specializes in overnight and time-critical deliveries. The company was founded in 1991 and has since grown to become one of the largest regional package delivery companies in the United States. OnTrac offers a range of services, including same-day delivery, next-day delivery, and two-day delivery, and serves customers in Arizona, California, Nevada, Oregon, Utah, and Washington. The company is committed to providing its customers with fast, reliable, and cost-effective delivery solutions, and has built a reputation for excellence in the industry.
Learn more about OnTrac
Size
3,000 employees
Industry

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