Senior Software Architect

Fusion Innovation; Chantilly (VA); Hybrid; USD 150,000 - 210,000; Full time

Job summary

FusionInnovation in the United States seeks a Senior Software Architect to serve as the architecture authority for a large-scale, globally distributed mission platform. You will define governance for 25 core Java-based microservices, data flows, and deployment topologies across edge and centralized environments.

You will work with a stack including RHEL or Rocky Linux, Java JDK 21+, Vue.js 3, MongoDB, Elasticsearch, Logstash, RabbitMQ, Consul, Nomad, and Vault, ensuring security, resilience, and

Qualifications

• Must demonstrate senior architectural leadership of large-scale microservices platforms.
• Strong experience with Java-based microservices and distributed systems.
• Proven ability to define service boundaries, data flows, and observability.

Responsibilities

• Own and evolve the architecture for a globally distributed microservices platform.
• Guide deployment patterns across edge and centralized environments.
• Collaborate with security, operations, and field teams to align architecture with constraints.
• Review designs and drive modernization and debt reduction.

Skills

Architecture leadership

Java

Microservices

Distributed systems

Observability

Linux (RHEL/Rocky)

MongoDB

Elasticsearch

RabbitMQ

Consul

Nomad

Vault

Vue.js 3

Java JDK 21+

Tools

Vue.js 3

MongoDB

Elasticsearch

Logstash

RabbitMQ

Consul

Nomad

Vault

RHEL/Rocky Linux

Job description

FusionInnovation's recent growth has earned us a top spot in the Inc 5000 FastestGrowing Private Companies in America and in Washington Business Journal's BestPlaces to Work multiple years in a row. Our team members are passionate abouttheir work and are empowered to contribute their unique skills and perspectivesto our projects. Here at Fusion, we put people first. When you join us, youdon't just join a company, you join a family. If you are ready to be part of afun and engaging team where your innovative ideas are heard, supported, andmake ever lasting mission impacts for our Nation's most sensitive programs, youhave come to the right place.

Position Overview

The Senior Software Architect will serve as the overall architecture authority for a large-scale, globally distributed mission platform deployed across multiple countries and managed remotely from the United States. The platform supports real-time transaction processing, distributed data management, external government and commercial integrations, peripheral and device orchestration, and centralized observability and administration. This role defines and governs the architecture of a modern Linux-based ecosystem of approximately 25 core microservices and a comparable set of supporting services while ensuring resilience, fieldability, security, and maintainability.

Key Responsibilities

• Own and evolve the overall software architecture for a globally distributed microservices platform.
• Provide architectural leadership for approximately 25 core Java-based microservices and a comparable set of supporting and integration services.
• Define and govern service boundaries, contracts, data flows, event patterns, control-plane and backplane behavior, node roles, deployment topologies, observability, fault tolerance, and recovery patterns.
• Lead architecture for a technology stack that includes RHEL or Rocky Linux, Java JDK 21+, Vue.js 3, MongoDB, Elasticsearch, Logstash, RabbitMQ, Consul, Nomad, and Vault.
• Architect deployment patterns for server, data, arbiter, workstation, and other user-facing node types across edge and centralized environments.
• Guide the design of operational services supporting transaction processing, rules and screening workflows, authorization, reference data, internationalization, health monitoring, and biometric or matching capabilities.
• Oversee integration architecture for external devices, sensors, government systems, commercial travel or identity systems, and customer-specific extensions.
• Ensure the platform remains remotely observable, diagnosable, supportable, and maintainable across all deployments.
• Collaborate with cloud, network, cybersecurity, data, field engineering, and operations teams to align architecture with real-world deployment constraints.
• Review software designs, guide technical-debt reduction and modernization, and sequence architectural roadmap priorities.
• Serve as the senior technical authority during design reviews, readiness reviews, major incident analysis, and complex problem resolution.