Ontrac Solutions

Design and implement Java Spring Boot microservices and own the platform API surface for a government licensing platform. | 8+ years backend experience with Java and Spring Boot, Google Cloud production experience, and strong API design skills. | OVERVIEW We are seeking a highly skilled and experienced Senior Software Engineer (Backend / API) to join a contractor program supporting a critical customer engagement: a state government professional licensing and regulatory compliance platform built on Google Cloud. This is greenfield work - infrastructure, data and CI/CD are in place, and the application services are still to be built. This role is ideal for a senior backend engineer with deep Java and Spring Boot experience who owns core domain services end to end and designs the APIs the rest of the platform is built on. The successful candidate will build the licensing, case management, payments, document and notification services and the public and internal API surface, working closely with the client technical lead, the integration engineers, and the mobile and frontend engineers to ensure project success from initial definition through final delivery. Expected start date: 5 October 2026. REQUIRED CREDENTIALS 8+ years of professional backend engineering experience with Java and Spring Boot Production delivery experience on Google Cloud Platform Bachelor's degree in Computer Science or equivalent practical experience REQUIRED QUALIFICATIONS Java 21 and Spring Boot 3.x microservice development API design and ownership: REST, OpenAPI specification, versioning, pagination, error contracts, backward compatibility PostgreSQL, including schema design, indexing, query tuning, and versioned migrations GCP serverless services: Cloud Run, Pub/Sub, Cloud Tasks, Cloud Scheduler Event-driven architecture and messaging patterns (idempotency, retries, dead-letter handling) API security with OAuth 2.0 / OIDC and JWT, including role- and attribute-based authorization Automated testing (JUnit, integration tests) and CI/CD Observability of owned services: structured logging, metrics, tracing, SLOs USEFUL QUALIFICATIONS Experience in government or regulated environments (FIPS, CJIS, HIPAA) - a plus, not a requirement Building APIs consumed by external partners, agencies, or public-facing applications AlloyDB, BigQuery Payment processing integrations and settlement reconciliation GraphQL or gRPC alongside REST Performance and load testing of high-traffic public services Google Cloud Professional certifications SCOPE AND SOLUTION EXPECTATIONS Below covers the scope of work we anticipate the contractor supporting throughout the project timeline. Design and implement Java 21 / Spring Boot microservices on Cloud Run for the core domain: licensing, applications and renewals, case management, payments, documents, and notifications Own the platform API surface - specify it in OpenAPI, keep contracts stable for the mobile, frontend and integration teams, and version changes without breaking consumers Implement PostgreSQL (AlloyDB) persistence, including row-level data isolation, search indexing, and migration strategy Build asynchronous event flows on Pub/Sub and Eventarc, and publish the domain events other services and the integration layer subscribe to Implement scheduled and timer-driven processing with Cloud Tasks and Cloud Scheduler (renewal reminders, expiration sweeps, reconciliation) Implement authentication and authorization across the API surface, including public applicant access and internal staff roles Implement payment flows, including hosted payment page integration and settlement reconciliation Meet platform security and compliance requirements for encryption, auditability, and data isolation Deliver unit and integration test coverage, participate in code reviews, and support CI/CD deployment of owned services Employment Type: CONTRACTOR

Design and implement core domain microservices and own the platform's API surface ensuring stable contracts. | 8+ years backend engineering with Java and Spring Boot, production experience on Google Cloud, bachelor's degree required. | OVERVIEW We are seeking a highly skilled and experienced Senior Software Engineer (Backend / API) to join a contractor program supporting a critical customer engagement: a state government professional licensing and regulatory compliance platform built on Google Cloud. This is greenfield work — infrastructure, data and CI/CD are in place, and the application services are still to be built. This role is ideal for a senior backend engineer with deep Java and Spring Boot experience who owns core domain services end to end and designs the APIs the rest of the platform is built on. The successful candidate will build the licensing, case management, payments, document and notification services and the public and internal API surface, working closely with the client technical lead, the integration engineers, and the mobile and frontend engineers to ensure project success from initial definition through final delivery. Expected start date: 5 October 2026. REQUIRED CREDENTIALS • 8+ years of professional backend engineering experience with Java and Spring Boot • Production delivery experience on Google Cloud Platform • Bachelor's degree in Computer Science or equivalent practical experience REQUIRED QUALIFICATIONS • Java 21 and Spring Boot 3.x microservice development • API design and ownership: REST, OpenAPI specification, versioning, pagination, error contracts, backward compatibility • PostgreSQL, including schema design, indexing, query tuning, and versioned migrations • GCP serverless services: Cloud Run, Pub/Sub, Cloud Tasks, Cloud Scheduler • Event-driven architecture and messaging patterns (idempotency, retries, dead-letter handling) • API security with OAuth 2.0 / OIDC and JWT, including role- and attribute-based authorization • Automated testing (JUnit, integration tests) and CI/CD • Observability of owned services: structured logging, metrics, tracing, SLOs USEFUL QUALIFICATIONS • Experience in government or regulated environments (FIPS, CJIS, HIPAA) — a plus, not a requirement • Building APIs consumed by external partners, agencies, or public-facing applications • AlloyDB, BigQuery • Payment processing integrations and settlement reconciliation • GraphQL or gRPC alongside REST • Performance and load testing of high-traffic public services • Google Cloud Professional certifications SCOPE AND SOLUTION EXPECTATIONS Below covers the scope of work we anticipate the contractor supporting throughout the project timeline. • Design and implement Java 21 / Spring Boot microservices on Cloud Run for the core domain: licensing, applications and renewals, case management, payments, documents, and notifications • Own the platform API surface — specify it in OpenAPI, keep contracts stable for the mobile, frontend and integration teams, and version changes without breaking consumers • Implement PostgreSQL (AlloyDB) persistence, including row-level data isolation, search indexing, and migration strategy • Build asynchronous event flows on Pub/Sub and Eventarc, and publish the domain events other services and the integration layer subscribe to • Implement scheduled and timer-driven processing with Cloud Tasks and Cloud Scheduler (renewal reminders, expiration sweeps, reconciliation) • Implement authentication and authorization across the API surface, including public applicant access and internal staff roles • Implement payment flows, including hosted payment page integration and settlement reconciliation • Meet platform security and compliance requirements for encryption, auditability, and data isolation • Deliver unit and integration test coverage, participate in code reviews, and support CI/CD deployment of owned services

Design, build, test, and deploy full-stack application features and manage cloud infrastructure on GCP. | Requires senior-level experience with React, Node.js, PostgreSQL, Terraform, Docker, CI/CD pipelines, and GCP certifications or equivalent expertise. | Role Summary OnTrac is seeking an experienced Senior Full-Stack Cloud Engineer to support our digital platform initiatives. In this role, you will design, build, test, and deploy modern full-stack application features spanning a React frontend, a Node.js REST API, and a PostgreSQL database. Working alongside internal engineering resources and partner teams, you will also manage cloud deployments, infrastructure automation, and CI/CD pipelines on Google Cloud Platform (GCP) using Terraform and Docker. Requirements & Qualifications • Google Cloud Certification: Active certification as a GCP Associate Cloud Engineer or Professional Cloud Developer (or equivalent demonstrated depth on Google Cloud). • Containerization: Hands-on experience with Docker for containerizing Node.js applications and managing containerized runtime environments. • Infrastructure as Code (IaC): Solid proficiency writing and managing Terraform scripts to provision GCP infrastructure. • CI/CD Expertise: Proven ability to configure and maintain automated build, test, and deployment pipelines using Google Cloud Build or GitHub Actions. • Full-Stack Proficiency:• Frontend: Strong experience building modern, responsive UI components in React directly from Figma designs. • Backend: Expertise designing, building, and securing RESTful APIs with Node.js. • Database: Deep knowledge of PostgreSQL, including relational data modeling, writing SQL queries, and managing schema migration scripts. • Testing Beyond Unit Level: Hands-on experience implementing integration and end-to-end (E2E) testing strategies (e.g., Cypress, Playwright, Supertest) alongside standard unit testing. Key Responsibilities Application Engineering & Interface Development • Design and implement full-stack application features across the React frontend, Node.js backend, and PostgreSQL schema. • Translate design team mockups from Figma into clean, responsive, and reusable React components and views. • Build and maintain the REST API layer handling communication between frontend and backend services. Database Design & Schema Management • Design and evolve the PostgreSQL relational data model to support new application capabilities. • Author SQL queries and write schema migration scripts to execute database updates safely across environments. Testing & Quality Assurance • Write unit tests for new and modified code as a standard part of the software development lifecycle. • Build and maintain integration and end-to-end (E2E) tests to validate user journeys and system interactions beyond the unit level. GCP Infrastructure & DevOps • Provision, deploy, and configure application components on Google Cloud Platform—including runtime services, managed PostgreSQL (Cloud SQL), and Cloud Storage—using Terraform. • Set up, optimize, and maintain CI/CD pipelines covering automated builds, test execution, container image generation, and deployments. Technical Alignment & Documentation • Participate in collaborative working sessions with OnTrac project teams and external partner stakeholders (such as SADA) to define requirements and establish technical approaches. • Author and maintain comprehensive technical documentation, including system architecture, API contracts (OpenAPI/Swagger), and data models.