{"id":2814096,"url":"https://alion.io/job/rb-global-staff-software-engineer-6","title":"Staff Software Engineer","company":{"id":2965322,"name":"RB Global","domain":"rbglobal.com","url":"https://alion.io/company/rbglobal","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Oracle","truth_index":{"grade":"B","score":78,"open_postings":48,"ghost_share":0,"stale_share":0.875,"repost_share":0,"time_to_fill_p50_days":33,"computed_at":"2026-11-11T05:49:22Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Westchester, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":153000,"max_usd":279000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1372},"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":".NET","optional":false},{"name":"Azure","optional":false},{"name":"C#","optional":false},{"name":"OpenTelemetry","optional":false}],"status":"live","first_seen_at":"2026-09-22T18:40:58Z","employer_posted_date":"2026-09-22","last_verified_at":"2026-11-11T03:05:37Z","board_verified":true,"closed_at":null,"days_open":49,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":49},"description":"About the Role\nIAA is seeking a highly experienced Staff Engineer to join the US Operations Platform organization. This role is focused on modernizing and scaling mission-critical operational applications that support auction, logistics, titles, payments, and yard operations across the United States. You will provide hands-on technical leadership in evolving legacy systems into modern, cloud-native .NET applications, while improving reliability, performance, and long-term maintainability.\nKey Responsibilities\nLead application modernization initiatives, including migration from legacy .NET Framework to modern .NET (.NET Core / latest LTS).\nDrive architectural design for scalable, modular services and APIs supporting high-volume operational workflows.\nPartner with Product and Architecture to decompose monolithic applications into well-defined domains and services.\nDefine and implement modern data-access patterns using ORMs, repository patterns, and controlled schema migrations.\nImprove system performance, resilience, and fault tolerance through sound design practices (timeouts, retries, idempotency, and graceful degradation).\nEstablish and enforce engineering standards for code quality, testing, and maintainability.\nEmbed observability into applications using structured logging, metrics, and distributed tracing (OpenTelemetry).\nDesign secure-by-default application patterns including authentication, authorization, secrets management, and secure coding practices.\nLead technical discovery and solution design for complex, cross-team initiatives.\nMentor senior and mid-level engineers through design reviews, code reviews, and hands-on technical guidance.\nCollaborate closely with Infrastructure, Security, Data, and Operations teams to ensure solutions meet operational and compliance requirements.\nQualifications\n8+ years of professional software engineering experience, with significant time spent modernizing large-scale applications.\nDemonstrated experience operating at a Staff or Principal Engineer level, influencing architecture and technical direction.\nDeep expertise in C#, .NET, .NET Core, and modern application development practices.\nStrong experience designing RESTful APIs and service-oriented or domain-driven architectures.\nHands-on experience modernizing legacy systems and databases in production environments.\nStrong understanding of relational databases and modern data-access strategies.\nExperience with cloud platforms (Azure preferred) and cloud-native application patterns.\nExcellent communication skills with the ability to clearly explain technical tradeoffs to engineering and business stakeholders.\nProven ability to lead through influence, mentor engineers, and raise overall engineering quality.\nBonus Experience\nExperience with high-throughput, transaction-heavy operational systems.\nExposure to event-driven or asynchronous architectures.\nExperience modernizing applications in regulated or compliance-sensitive environments.\nFamiliarity with front-end modernization (e.g., React) as part of full-stack 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