Senior NG911 Telephony Engineer – NENA Standards & Interoperability SME

About US:
Tryfacta is a leading, nationally renowned Workforce Management Solution provider for private &public sector firms across the US. We specialize in Healthcare, IT, Business Support, and Professional & Craft/Light Industrial ecosystems.
Founded in March 1996, we have a presence in all 50 States. Tryfacta has Ranked number 1 as one of the fastest-growing companies by Inc. Magazine (Inc. 5000)!
Tryfacta is certified by the Joint Commission for Healthcare Staffing Services & has numerous ISO Certifications that capture our commitment to continuous improvement.
Job Summary:
Tryfacta is seeking a NG911 Telephony NENA SME - SP3 for our client in Brooklyn, NY 11201. This is a temporary contract assignment. If you meet the qualifications listed below and are interested, please Apply Now!
Job Diva ID: 26-06027
Position Title: NG911 Telephony NENA SME - SP3
Location: Brooklyn, NY 11201
Work Schedule: Mon–Fri, 35 hr/week

Scope of services (OTI – Telephony NENA SME)

• Ensure NENA and APCO standards are met during the NG9-1-1 implementation.
• Turn business needs into detailed requirements or user stories, and lead prioritization and validation with the project teams.
• Conduct stakeholder analysis for requirements elicitation.
• Plan elicitation tasks, activities and timelines.
• Review and assess the adequacy of NYC's Call Handling requirements.
• Engage public safety and stakeholder agencies on their needs, issues and concerns.
• Incorporate applicable federal, state and professional-organization standards and guidelines for NG911.

Mandatory skills/experience (candidates without these won't be considered)

• Minimum 12 years of experience in a technical and/or business application, product, platform or methodology.
• Develop and maintain call-flow diagrams, signaling validation scripts and interoperability matrices across PSAC I, PSAC II and vendor sites.
• Work with MSCI, Client, NICE, Cisco and telecom carriers to resolve interoperability, signaling and audio-quality issues.
• Support testing, troubleshooting and cutover events for critical voice infrastructure.
• Design and validate call routing workflows per NENA STA-010, STA-012 and STA-019.
• Configure and analyze SIP messages, SDP negotiation and trunk performance across Clients and gateways.
• Maintain mappings between ESRP, BCF and CHS components for voice, text and multimedia calls.
• Ensure correct ECRF/LVF call routing for location-based dispatching.
• Work with network and integration engineers on ESInet-level QoS, DSCP tagging and failover routing.
• Validate carrier connectivity for private IP trunk services.
• Support call-path redundancy testing and performance benchmarking between PSAC I, PSAC II and NGCS vendor data centers.
• Analyze SIP traces, CDRs and packet captures to validate behavior under load and failover.
• Work with the Lead Test Engineer on test scripts and call-flow verification plans for production readiness.

Desirable skills/experience

• Excellent business writing, communication and interpersonal skills.
• Knowledge of public safety environments.
• Design skills in IP voice management, auditing and monitoring.
• Knowledge of logging and recording technologies for legacy and IP PBXs.
• Experience working with internal and external partner organizations across services and troubleshooting sessions.

Tryfacta is an Equal Opportunity/Affirmative Action Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information.