Senior Systems Integration Engineer

Senior Systems Integration EngineerIn a world of possibilities, pursue one with endless opportunities. Imagine Next! At Parsons, you can imagine a career where you thrive, work with exceptional people, and be yourself.

Guided by our leadership vision of valuing people, embracing agility, and fostering growth, we cultivate an innovative culture that empowers you to achieve your full potential. Unleash your talent and redefine what's possible.Parsons is seeking a Senior Systems Integration Engineer to help design, modernize, and sustain integrations for a mission-critical, globally deployed identity and mobility platform. This is a hands-on engineering role for someone who has built and operated complex system-to-system integrations across Java microservices, event-driven architectures, edge environments, and cloud platforms.You will work on both standards-based and custom integrations spanning external data providers, identity and verification services, biometric and peripheral devices, access-control systems, and country- or customer-specific third-party platforms.

The environment ranges from low-power edge clusters in austere locations to large, centralized deployments to cloud-forward AWS architectures.This role is ideal for an engineer who enjoys solving hard interoperability problems, modernizing legacy interfaces, and building resilient integrations that operate reliably under real-world network, performance, and operational constraints.What you will do:Design, build, and maintain secure, reliable integrations between a distributed platform and third-party systems using REST APIs, asynchronous messaging, secure file/data exchange, and device/peripheral interfacesModernize legacy integrations into Java-based microservices running in a distributed platform architectureBuild integrations across edge, data center, and AWS cloud deployment modelsEngineer for resilience, observability, auditability, latency, and intermittent/low-bandwidth network conditionsIntegrate with government and commercial systems such as identity and verification services, traveler data platforms, biometric and document-capture peripherals, and access-control and gate systemsDefine interface contracts, schemas, versioning strategies, retry/idempotency behavior, and certification/test approachesTroubleshoot issues across application, data, messaging, and network layersPartner closely with software, cloud, network, QA, field engineering, analytics/observability, and security teamsRequired qualifications:8+ years of experience in software engineering or systems integrationStrong hands-on experience building Java-based distributed servicesProven production experience with API integration and event-driven messagingExperience with one or more of the following: RabbitMQ, Kafka, JMS, AMQP, or similar messaging platformsMongoDB, Elasticsearch/OpenSearch, or comparable data platformsAWS deployment and operations in production environmentsExperience designing and supporting integrations in high-availability, mission-critical, or regulated environmentsStrong understanding of integration concerns such as authentication/authorization, certificate-based security, schema evolution, error handling and retries, observability and supportabilityExperience modernizing legacy or monolithic integrations into service-oriented or microservices-based architecturesAbility to work effectively in a highly collaborative engineering environment with direct ownership of delivery outcomesPreferred qualifications:Experience with HashiCorp tooling, especially Consul, Nomad, and Vault, or with adjacent platforms whose skills transfer quicklyExperience with AWS-native services and infrastructure automationFamiliarity with ELK, Grafana, Kibana, Logstash, or other observability stacksExperience integrating biometric devices, document readers, cameras, license plate readers, or other field peripheralsExperience with degraded, disconnected, or low bandwidth environmentsWhy join Parsons in this role:Work on technically demanding integration challenges with real operational impactModernize a global platform from legacy interfaces to resilient microservicesDeliver software, edge systems, cloud, networking, and observability solutionsJoin a team where senior engineers have meaningful technical ownership and influenceSecurity Clearance Requirement: An active Top Secret SCI security clearance is required for this position. This position is part of our Federal Solutions team.Salary Range: $176,900.00 - $332,400.00We value our employees and want our employees to take care of their overall wellbeing, which is why we offer best-in-class benefits such as medical, dental, vision, paid time off, Employee Stock Ownership Plan (ESOP), 401(k), life insurance, flexible work schedules, and holidays to fit your busy lifestyle!Parsons is an equal opportunity employer, and all qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, veteran status or any other protected status.We truly invest and care about our employee's wellbeing and provide endless growth opportunities as the sky is the limit, so aim for the stars! Imagine next and join the Parsons quest—APPLY TODAY!