540

• Design, build, and deliver scalable, user-facing applications that support mission-critical workflows in a modern cloud environment • Own features end-to-end—from requirements and design through development, testing, and deployment • Collaborate directly with engineers, architects, and stakeholders to translate complex requirements into practical, working solutions • Develop and integrate RESTful APIs and data-driven services across distributed systems • Contribute to front-end development using Angular while supporting backend services in Node.js / NestJS • Debug and resolve issues across the stack, ensuring performance, reliability, and maintainability • Operate with a high degree of autonomy—able to move work forward independently while staying aligned with the broader team • Continuously improve code quality through testing, code reviews, enforcing coding standards and thoughtful design decisions • Bring a builder mindset—focused on delivering real, working software over theoretical perfection • Mentoring fellow developers and encouraging overall team growth • Assisting in the removal of blockers to keep a high velocity within the team

• Design, build, and maintain secure CI/CD pipelines supporting cloud-native applications and services • Implement Infrastructure as Code using tools such as Terraform to provision and manage cloud resources • Integrate security controls and best practices into the software development lifecycle (DevSecOps) • Support deployment and operation of containerized workloads and cloud-native data pipelines • Collaborate with engineers and architects to implement scalable, secure, and resilient system designs • Automate build, test, and deployment workflows across multiple environments • Support vulnerability management, remediation, and secure configuration practices • Implement and maintain cloud security controls, identity management, and access policies • Monitor system performance, reliability, and security posture across environments • Contribute to technical documentation, runbooks, and system configurations • Work with cross-functional teams to ensure delivery aligns with mission needs and compliance requirements

• Lead the migration of a full-stack, AI-enabled application into Google Cloud Platform (GCP) within a cArmy environment • Operate as the primary cloud SME, driving architecture, design, and implementation decisions • Design and implement scalable, secure, cloud-native solutions leveraging GCP services • Collaborate with Army stakeholders, Google partners, and internal teams to align technical solutions with mission needs • Interface across multiple teams to coordinate migration efforts and ensure successful delivery • Establish best practices for cloud architecture, security, and deployment in a regulated environment • Support and improve CI/CD pipelines and cloud deployment workflows • Troubleshoot complex issues across infrastructure, application, and data layers • Lay the foundation for future migrations and help shape a repeatable cloud adoption strategy • Provide technical leadership and mentorship as the team grows

540 is seeking a Senior Solutions Architect to support our partnership with Google and the DoW in building new capabilities for an Air Force integration platform. This platform leverages Google Cloud, Apigee, and Kubernetes to enable scalable, secure, and mission-critical systems. In this role, you will lead technical architecture efforts and drive the design and delivery of complex, distributed systems. A key focus of this work is enabling disconnected operations (offline-first) capabilities that ensure platform reliability and continuity in degraded or low-connectivity environments supporting Air Force operations. Location: Remote within the continental United States Citizenship & Clearance Requirement: per client requirements, candidates must be a U.S. Citizen with the ability to obtain a DoD Secret clearance Education Requirement: Bachelor’s Degree in Computer Science or related engineering field (preferred) 540 Internal Thrive Level: Senior Solutions Architect WHY 540? 540 is a forward-thinking company that the government turns to in order to #getshitdone. We don’t just talk about innovation – we deliver it. We break down barriers, build impactful technology, and solve mission-critical problems. HOW YOU’LL DRIVE IMPACT - Lead the architecture and delivery of an Air Force integration platform built on Google Cloud, Apigee, and Kubernetes - Design and guide implementation of scalable, secure, and maintainable cloud architectures - Partner with engineers, architects, and product stakeholders to translate mission needs into technical solutions and platform capabilities - Support engineering teams in designing, building, and troubleshooting distributed systems and cloud-native applications - Drive architectural decisions across cloud, networking, system design, and service integrations, and define conflict resolution and data convergence frameworks - Design and support CI/CD pipelines and automated deployment workflows across multiple services - Collaborate with technical and non-technical stakeholders to gather requirements, evaluate tradeoffs, and deliver practical solutions - Produce clear technical documentation for architecture decisions, system designs, and platform configurations - Provide hands-on technical leadership, contributing to implementation when needed - Work directly with client stakeholders and delivery teams to ensure solutions meet mission needs and timelines REQUIRED SKILLS & EXPERIENCE - 8+ years of experience in a technical leadership or architecture role - Strong programming ability in a typed language (Java, Kotlin, C#, etc.) - Strong understanding of modern browser capabilities (Service wWorkers, Web Workers, File System Access API) - Experience designing and building enterprise cloud architectures (AWS, Azure, or Google Cloud) - Strong experience working with Kubernetes and containerized environments (Kubectl, Helm) - Deep experience with distributed systems patterns, including eventual consistency, CAP theorem tradeoffs, and data synchronization strategies - Experience building or supporting CI/CD pipelines and automated deployment workflows - Understanding of authentication and authorization protocols (SAML, OAuth, etc.) - Professional-level cloud architecture certification (Google Cloud Professional Cloud Architect preferred), or the ability to obtain within 30 days of hire - Excellent communication skills, with the ability to work across technical and non-technical stakeholders - Ability to work independently with clients while collaborating effectively with engineering teams NICE TO HAVE - Experience designing Progressive Web App (PWA) architectures for enterprise-scale deployments - Familiarity with browser-based storage and synchronization engines - Experience with data survivability strategies in disconnected or high-security environments - Experience with identity and access management tools (e.g., Keycloak) - Experience with AI/ML platforms (e.g., Vertex AI) - Experience with database design and development - Familiarity with DevSecOps practices - Experience with Linux administration (especially RHEL) - Experience with API gateways or API management platforms (Apigee preferred) - Experience working in Agile development environments - Experience supporting U.S. Federal Government programs, particularly DoW environments BENEFITS & PERKS - Flexible PTO + all Federal holidays off - Health, dental and vision insurance plans - Flexible Spending Account (FSA) - 401k with employer match - Company-sponsored life insurance, short- and long-term disability - Professional development (training, certifications, conferences) - Paid cloud developer accounts - Referral bonuses - HQ office perks (parking / metro reimbursement, nitro coffee & lunches) - Annual social events (540 Week, hackathon, charity golf tournament, etc.) - Access to 540’s Washington Capitals & Nationals tickets EQUAL EMPLOYMENT OPPORTUNITY (EEO) 540's policy is to provide equal employment opportunity to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

540 is seeking a Software Engineer to support the DoW in building a next-generation Air Force aircraft maintenance platform. This application leverages Java/Spring Boot microservices, Angular front-end applications, and cloud-native infrastructure (Kubernetes, Google Cloud, Apigee). Engineers on this team build and scale full-stack features across user interfaces, backend services, and data layers that power critical maintenance operations. This platform will modernize how Air Force maintainers plan and execute maintenance and is a key part of the Air Force’s technology strategy for the coming decade. This role is offered as a contract engagement (1099 or W-2) and is ideal for engineers who value flexibility, autonomy, and high-impact work. While there may be an opportunity to convert to full-time in the future, conversion is not guaranteed and is dependent on program needs. Location: Remote within the continental United States, East Coast working hours Citizenship & Clearance Requirement: per client requirements, candidates must be a U.S. Citizen with the ability to obtain a DoW Secret clearance Education Requirement: Bachelor’s Degree in Computer Science or related engineering field (preferred) Contract Duration: initial 12 month contract, 40 hours per week WHY 540? 540 is a forward-thinking company that the government turns to in order to #getshitdone. We don’t just talk about innovation – we deliver it. We break down barriers, build impactful technology, and solve mission-critical problems. HOW YOU’LL DRIVE IMPACT - Develop full-stack features across Angular front-end applications and Java/Spring Boot microservices - Develop offline-first capabilities that enable reliable client-side data persistence and seamless synchronization with backend systems - Build and deploy services in containerized environments (Docker, Kubernetes) - Design and integrate RESTful APIs to enable secure communication across systems - Implement asynchronous messaging patterns (Kafka) for distributed systems - Design and maintain data models and persistence layers (Postgres or MySQL), along with client-side storage solutions (IndexedDB) - Collaborate with engineers, architects, and stakeholders to translate mission needs into scalable technical solutions - Contribute to technical design documentation, including system diagrams and architecture artifacts - Participate in code reviews, testing, and troubleshooting to ensure high-quality software - Support and improve CI/CD pipelines and deployment processes - Enhance system performance, scalability, and reliability as the platform evolves REQUIRED SKILLS & EXPERIENCE - 5+ years of professional software development experience - Strong experience with Java and Spring Boot for building production-grade services - Experience with JavaScript/TypeScript and modern frameworks (Angular preferred) - Experience developing microservices in containerized environments (Docker, Kubernetes) - Experience with asynchronous messaging systems (Kafka) - Proficiency with build tools such as Gradle or Maven - Experience designing resilient data synchronization patterns and RESTful interfaces - Experience working with relational databases (Postgres or MySQL) and client-side storage solutions (IndexedDB) - Ability to produce technical design documentation (diagrams, system designs) - Strong problem-solving skills and ability to learn new technologies quickly - Excellent communication and collaboration skills - Demonstrated ownership and ability to drive work from concept through delivery NICE TO HAVE - Experience building offline-capable web applications (PWAs) - Hands-on experience with browser-based databases such as IndexedDB - Familiarity with Web Crypto API for client-side encryption-at-rest - Experience implementing conflict resolution patterns (e.g., syncing and merging client/server data) - Experience with Google Cloud Platform (GCP) or similar cloud environments - Experience with API gateways and API management platforms, such as Google Apigee - Familiarity with API authentication and authorization (PKI, OAuth2, JWT, LDAP, SAML, etc.) - Experience working with OpenAPI/Swagger specifications - Experience supporting U.S. Federal Government programs, particularly DoW environments - GCP Certifications (Professional Cloud Architect or Professional Cloud Developer) EQUAL EMPLOYMENT OPPORTUNITY (EEO) 540's policy is to provide equal employment opportunity to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.

• Own and manage development-level testing process and outcomes across the platform • Design, develop, and maintain automated tests to validate functionality across APIs, microservices, and user interfaces • Develop and execute integration, functional, and regression tests for distributed systems • Build and maintain automated API tests for RESTful services and service integrations • Design and execute test suites that leverage network emulation to simulate real-world flight-line conditions (latency, packet loss, offline scenarios) • Develop automated validations for client-side persistence, ensuring unsynced data survives refreshes, crashes, and device restarts within browser storage • Partner closely with engineers to validate microservice interactions and platform integrations • Participate in manual testing of user stories and features to validate requirements and expected behavior • Define and improve test strategies, test coverage, and automation frameworks • Integrate automated tests into CI/CD pipelines to enable reliable and repeatable deployments • Investigate and troubleshoot defects, working with engineering teams to reproduce and resolve issues • Create and maintain clear testing documentation, including test cases and validation strategies • Collaborate with cross-functional teams to ensure quality standards are maintained throughout development.

• Serve as the embedded technical lead for Databricks customer engagements • Own Databricks platform architecture, design decisions, and technical standards • Lead delivery of complex data pipelines and analytics workloads on Databricks • Provide deep expertise in Apache Spark internals, optimization, and scalability • Guide customers on Databricks best practices across ingestion, transformation, and analytics • Partner closely with Databricks Professional Services leadership on delivery strategy • Mentor and oversee partner and customer delivery teams • Ensure solutions meet Databricks PS governance, security, and quality standards • Drive adoption, platform maturity, and long-term customer success

• Serve as an embedded SME and lead advisor for the data platform operations team supporting a production GCP environment • Drive operational readiness, including development and refinement of runbooks, SOPs, escalation procedures, and day-two support processes • Provide hands-on support for production incidents, including troubleshooting, root cause analysis (RCA), and long-term remediation • Monitor system health, logs, and performance metrics to identify risks and optimization opportunities • Lead PostgreSQL / AlloyDB performance tuning, including indexing strategies, query optimization, and maintenance practices • Provide guidance across GCP services including Dataflow, BigQuery, Pub/Sub, Cloud Functions, and Dataplex • Support release management, including database deployments and rollback strategies • Contribute to resiliency planning, including backup/recovery, disaster recovery (DR), and high availability (HA) • Develop and maintain operational documentation and technical artifacts aligned to production needs • Serve as the primary technical point of contact for client stakeholders, providing strategic database roadmaps and defending technical architectural decisions during program reviews

• Design and develop full-stack features across Angular front-end applications and Java/Spring Boot microservices • Build and operate scalable services in containerized environments (Docker, Kubernetes) • Own the design and evolution of core services and APIs, ensuring scalability, reliability, and maintainability • Design and integrate RESTful APIs to enable secure communication across systems • Implement asynchronous messaging patterns (Kafka) for distributed environments • Design and optimize data models and persistence layers (Postgres or MySQL) • Collaborate with engineers, architects, and stakeholders to translate mission needs into technical solutions • Contribute to technical design documentation and system architecture artifacts • Lead or participate in code reviews, testing, and troubleshooting to ensure high-quality software • Drive features and services end-to-end, from design through production delivery • Help define service design patterns, API standards, and engineering best practices • Improve system performance, scalability, and reliability as the platform evolves

• Design and develop full-stack features across Angular front-end applications and Java/Spring Boot microservices • Build and operate scalable services in containerized environments (Docker, Kubernetes) • Own the design and evolution of core services and APIs, ensuring scalability, reliability, and maintainability • Design and integrate RESTful APIs to enable secure communication across systems • Implement asynchronous messaging patterns (Kafka) for distributed environments • Design and optimize data models and persistence layers (Postgres or MySQL) • Collaborate with engineers, architects, and stakeholders to translate mission needs into technical solutions • Contribute to technical design documentation and system architecture artifacts • Lead or participate in code reviews, testing, and troubleshooting to ensure high-quality software • Drive features and services end-to-end, from design through production delivery • Help define service design patterns, API standards, and engineering best practices • Improve system performance, scalability, and reliability as the platform evolves