Principal Software Engineer, Workload Communications Domain Lead

Job overview

The Principal Software Engineer, Workload Communications Domain Lead is an onsite role in Boulder, CO, with a listed pay range of $164,000–$218,000 per year. SciTec develops technologies supporting U.S. national security and defense missions, and this role guides workload communications across engineering teams. The role combines hands-on engineering with technical stewardship: assessing distributed communication systems, establishing evidence-based recommendations, and building reusable implementations and guidance. It helps engineering teams improve reliable, efficient data and control flows for mission-critical processing, visualization, and operational workflows.

What you'll do

• Assess communication technologies, patterns, recurring problems, and capability gaps
• define evaluation criteria and benchmark technologies under representative traffic and failure conditions
• document recommendations, alternatives, and exceptions in decision guides, reference architectures, ADRs, and troubleshooting guides
• build and maintain reference implementations, templates, and shared libraries
• guide communication patterns and practices for delivery guarantees, ordering, retries, deduplication, idempotency, flow control, schemas, partitioning, replay, fault handling, observability, and recovery
• optimize throughput, latency, serialization, network use, and memory
• mentor engineers through pairing, reviews, troubleshooting, and workshops
• collaborate with other domain leads
• track adoption and outcomes.

What we're looking for

Skills & competencies

principal software engineer

workload communications

boulder co

scitec

full-time

distributed systems

event streaming

messaging

rpc

kafka

grpc

dod clearance

$164k–$218k/year

Work arrangement

• Weekend coverage required

Benefits & perks

• 4% Safe Harbor 401(k) match, company-paid HSA medical insurance, dental, vision, life and long-term disability coverage, short-term disability, profit sharing, discretionary performance bonus, paid parental leave, paid time off, and flexible work hours.

Why this role

U.S. citizenship required for government-contract work; 10+ years of relevant software experience; ability to obtain and maintain a DoD security clearance; deep production experience with messaging/event streaming or RPC systems.

About the employer

SciTec is hiring for this role. Industry: Engineering Services. Sector: 54.