Solution Architect

EOE Statement We are an equal employment opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability status, protected veteran status or any other characteristic protected by law.

Position:
Solution Architect

Location:

Richardson, Texas or Harrisburg, Pennsylvania or Remote

Reporting to: CTO (based in Europe)

Travel:
Occasional domestic and international travel may be required for customer engagements, deployments, and industry events.

The Solution Architect acts as a senior technical Subject Matter Expert across pre‑sales and professional services engagements, leading the architectural design of advanced mobile network solutions for wholesale and enterprise customers. The role is responsible for translating customer, market, and business requirements into scalable, secure, and commercially viable mobile network architectures. Working closely with Sales, Engineering, Product, and strategic partners, the Solution Architect retains architectural ownership throughout the customer lifecycle while supporting delivery teams during implementation and onboarding.

This position is hands‑on at the architectural level, customer‑facing, and commercially aware, while remaining focused on design leadership rather than day‑to‑day operational execution.

Technical Expertise:

• 2G, 3G, and LTE EPC architectures.
• 5G Standalone (SA) and Non‑Standalone (NSA) core networks.
• Service‑Based Architecture (SBA) network functions and interfaces.
• Open‑source core platforms and their production deployment.
• Virtualization, containerization, and cloud‑native deployment models.

• Pre‑Sales
  • Capture and qualify customer technical requirements in close partnership with the Sales team, ensuring alignment with Limitless Mobile's strategy, target markets, and solution portfolio.
  • Lead technical discovery sessions to understand customer needs, constraints, and success criteria.
  • Translate customer requirements into high‑level solution architectures that are technically robust and commercially viable.
  • Present architectural concepts and solution designs to customers through workshops, conference calls, and on‑site meetings.
  • Support the development of technical content for proposals, RFIs, RFPs, and RFQs, including architectural diagrams and written responses.
• Projects
  • Define and own High‑Level Design (HLD) documentation for contracted customers.
  • Work closely with Engineering to ensure architectural intent is clearly understood prior to implementation.
• Professional Services
  • Provide architectural oversight and guidance during deployment and onboarding phases.
  • Support Engineering with complex technical challenges and escalations where architectural input is required.
  • Deliver technical consultancy as part of professional services engagements.
• Operations
  • Provide technical account management for live wholesale customers, including Tier 3 support if needed.
  • Act as a Tier‑3 technical escalation point for complex issues requiring architectural analysis.
  • Provide technical account oversight for strategic wholesale customers, ensuring architectural consistency and long‑term solution integrity.
  • Support root‑cause analysis and post‑incident reviews for major service‑impacting events.
• Product Development
  • Design end‑to‑end mobile network architectures supporting LTE, 5G SA, and NSA deployments.
  • Define and guide cloud‑native and containerized deployments using Docker, Kubernetes, and Helm.
  • Advise on integration with Service Communication Proxy (SCP), SEPP, roaming, and interconnect platforms.
  • Provide strategic input to the CTO on emerging technologies, evolving customer requirements, and industry trends.
  • Evaluate infrastructure enhancements, vendors, and potential technical partnerships.
  • Act as the primary technical interface between Limitless Mobile, internal teams, and strategic suppliers.
• Security, Interconnect & Compliance
  • Advise on interconnect security and regulatory compliance, including ISO/IEC 27001 and ISO/IEC 27011 alignment.
  • Design secure inter‑PLMN connectivity, including SEPP architecture, TLS certificate management, and HTTP/2…