Transform code into mission capability as a Senior Software Engineer with GDIT. You’ll design, develop, integrate, and sustain software that powers Consolidated Afloat Networks and Enterprise Services (CANES) and related Navy tactical network capabilities with NIWC Pacific (Codes 55131/55132/55133) in support of PMW-160 Tactical Networks—spanning ashore, afloat, subsurface, airborne, mobile, and joint environments. MEANINGFUL WORK AND PERSONAL IMPACT Design and develop mission applications and services aligned to CANES functional specifications; deliver microservices, RESTful APIs, and data pipelines supporting C4ISR workflows. Lead application integration (AI) activities: perform feasibility assessments, interface definition, dependency analysis, and produce HACSIM/AI documentation for fleet implementation. Build secure, containerized solutions (Docker/Kubernetes/Helm) for virtualized data centers; implement CI/CD (GitLab/Jenkins), IaC/automation (Ansible/Terraform), and package/version governance. Author and execute the Software Development Plan (SDP) per IEEE/EIA 12207; contribute to SEPs/EIPs and DoDAF-aligned architecture views across enterprise/tactical/system levels. Engineer to Navy cybersecurity requirements: apply DISA SRGs/STIGs, SAST/DAST (SonarQube/Fortify/Checkmarx), artifact hardening, logging, and RMF evidence to preserve ATO conditions. Develop test plans/procedures; support Developmental Test & Evaluation (DT&E), lab events, SOVTs, and TRRs; perform defect triage, root-cause analysis, and MS/FRACAS reporting. Produce engineering documentation (design specs, ICDs, sequence/flow, as-built software baselines, release notes) and contribute to CM (CMPro), CCB/PTRB change workflows, and BoMs. Optimize performance/reliability (profiling, concurrency models, caching, message queues), observability (metrics/tracing/logs), and resilience (retry/backoff/circuit-breaker patterns). Collaborate with NIWC Pacific, PEO C4I/PMW-160, Fleet stakeholders, and cybersecurity teams; mentor junior developers and champion DevSecOps and secure coding best practices.