Staff Software Engineer, Mobile Network Architecture & Connectivity

Walmart de México y Centroamérica; México; On-site; MXN 1,500,000 - 2,200,000; Full time

Job summary

Walmart de México y Centroamérica seeks a Staff Software Engineer, Mobile Network Architecture & Connectivity to define and drive the architectural direction enabling Full Mobile Network Operator capabilities.

You will lead Telco architecture across CRM/BSS, OSS, provisioning, charging, SIM/eSIM, Mobile Core, IMS, and subscriber management, translating business needs into scalable, secure software platforms, with a strong emphasis on automation, observability and vendor collaboration.

Qualifications

• Extensive experience designing and evolving large-scale telecommunications architectures.
• Deep understanding of end-to-end Telco ecosystem (CRM/BSS, OSS, service orchestration, network capabilities).
• Strong background in software engineering, platform engineering, and distributed systems architecture.
• Experience with cloud-native, API-driven, event-driven, service-oriented architectures.

Responsibilities

• Define the target Telco architecture and technical roadmap required to support Full MNO capabilities.
• Provide architectural direction across CRM/BSS, OSS, provisioning, charging, SIM/eSIM, Mobile Core, IMS, subscriber management, policy control, network services, interconnection, and roaming.
• Translate business and telecommunications capabilities into software domains, platform services, system boundaries, APIs, events, integration patterns, and data flows.
• Establish ownership models, systems of record, orchestration responsibilities, and integration boundaries across the Telco technology ecosystem.
• Design architectures that connect Telco platforms with digital products, enterprise systems, cloud services, data platforms, and internal engineering platforms.

Skills

Telco architecture

Software engineering

Distributed systems

Cloud-native design

Observability & SRE

Vendor collaboration

Education

Bachelor's degree in Computer Science or related field

Job description

We are a people-led, technology-enabled omnichannel company dedicated to helping people save money and live better.

In 2009, Walmart de México and Walmart Centroamérica began a new stage of growth and became one unified team. Since 2010, we have operated as Walmart de México y Centroamérica, one of the most important retail organizations in the region. Our omnichannel strategy is centered on our customers and focused on enhancing their shopping experience.

We operate in six countries: Mexico, Guatemala, El Salvador, Honduras, Nicaragua, and Costa Rica.

We have 4,079 stores across the region, including 3,154 in Mexico and 925 in Central America. Today, more than 6 million customers shop in our stores and clubs every day throughout Mexico and Central America.

We continue to provide customers with the products they need at everyday low prices through a diverse portfolio of retail formats, each offering a unique value proposition. At the same time, we continue to accelerate our digital transformation strategy to better serve our customers and members across all channels and throughout every stage of their shopping journey.

Job Description

We are looking for a Staff Software Engineer, Mobile Network Architecture & Connectivity to define and drive the technical architecture that will enable the evolution of our telecommunications ecosystem toward Full Mobile Network Operator (MNO) capabilities.

This is a senior individual contributor role for a technical leader who combines deep expertise in Telco architecture with a strong background in software and platform engineering. The ideal candidate understands telecommunications operations end-to-end and can translate complex Telco capabilities into modern, scalable, resilient, secure, observable, and highly automated technology platforms.

In this role, you will define the target architecture and technical roadmap across the Telco ecosystem, connecting digital customer experiences, CRM/BSS, provisioning, OSS, charging, SIM/eSIM, Mobile Core, IMS, subscriber management, policy control, network services, interconnection, and roaming.

You will establish how these capabilities should be structured, integrated, and operated, including system boundaries, ownership models, systems of record, APIs, events, data flows, integration patterns, and orchestration responsibilities. You will also help determine which strategic capabilities should be developed and owned internally, built in partnership with technology providers, or delivered through external vendors.

As a Staff Software Engineer, you will provide technical leadership across engineering, architecture, product, operations, and external technology partners. You will influence critical architectural decisions, establish technical standards, evaluate vendor solutions, identify opportunities for capability internalization, and guide the modernization of Telco platforms.

What you’ll do

• Define the target Telco architecture and technical roadmap required to support the organization’s evolution toward Full MNO capabilities.
• Provide architectural direction across CRM/BSS, OSS, provisioning, charging, SIM/eSIM, Mobile Core, IMS, subscriber management, policy control, network services, interconnection, and roaming.
• Translate business and telecommunications capabilities into clear software domains, platform services, system boundaries, APIs, events, integration patterns, and data flows.
• Define ownership models, systems of record, orchestration responsibilities, and integration boundaries across the Telco technology ecosystem.
• Design architectures that connect Telco platforms with digital products, enterprise systems, cloud services, data platforms, and internal engineering platforms.
• Establish modern architecture patterns based on distributed systems, cloud platforms, APIs, event-driven integration, automation, observability, reliability, resiliency, security, and scalability.
• Determine which strategic Telco capabilities should be developed or operated internally and which should be delivered through vendors or technology partners.
• Design software and platform abstractions that reduce dependency on vendor-specific implementations and enable greater flexibility and internal engineering ownership.
• Evaluate vendor architectures and technical solutions to ensure alignment with the target architecture, engineering standards, operational requirements, and long-term technology strategy.
• Identify architectural gaps, integration risks, operational dependencies, scalability constraints, and opportunities to modernize existing Telco capabilities.
• Establish technical principles and standards for the design, integration, deployment, operation, and evolution of Telco platforms.
• Partner with engineering teams to translate architectural direction into actionable technical designs, implementation plans, and engineering priorities.
• Collaborate with product, operations, business, and technology teams to connect customer journeys and business capabilities with the underlying Telco architecture.
• Guide the progressive internalization of critical Telco capabilities while balancing business priorities, technical complexity, operational risk, and vendor dependencies.
• Identify opportunities to apply AI, AIOps, data, and intelligent automation across Telco engineering and operations, including telemetry analysis, anomaly detection, event correlation, diagnosis, optimization, and automated remediation.
• Serve as a senior technical authority and influence engineering teams, technology leaders, product teams, operations, vendors, and partners without direct authority.

Qualifications

• Extensive experience designing and evolving large-scale telecommunications architectures in complex operator, connectivity, or Telco technology environments.
• Deep understanding of the end-to-end Telco ecosystem, from customer-facing and digital platforms through BSS, OSS, service orchestration, network capabilities, and operations.
• Strong technical expertise across several of the following areas:
  • CRM, BSS, and OSS
  • Provisioning and service orchestration
  • Charging and billing
  • SIM and eSIM platforms
  • Mobile Core, including EPC and/or 5GC
  • IMS
  • Subscriber management, including HSS and UDM
  • Policy control, including PCRF and PCF
  • Network services and integrations
  • Interconnection and roaming
• Strong background in software engineering, platform engineering, and distributed systems architecture.
• Experience designing cloud-native, API-driven, event-driven, and service-oriented architectures.
• Experience with microservices, systems integration, data flows, orchestration patterns, and large-scale technology platforms.
• Strong understanding of observability, Site Reliability Engineering, reliability, resiliency, performance, scalability, security, DevSecOps, and engineering automation.
• Experience defining target architectures, technical roadmaps, architecture principles, reference patterns, and engineering standards.
• Experience translating complex business capabilities and customer journeys into technology domains, system responsibilities, interfaces, and architectural decisions.
• Demonstrated ability to evaluate architectural trade-offs across internally developed capabilities, vendor platforms, managed services, and partner solutions.
• Experience working in complex ecosystems involving multiple vendors and technology partners, including the ability to assess and challenge proposed technical solutions.
• Ability to identify and manage architectural risks, integration dependencies, operational constraints, and technology modernization opportunities.
• Strong technical leadership skills with the ability to influence senior stakeholders and engineering teams without direct authority.
• Ability to operate effectively at both the strategic architecture level and the detailed technical design level.
• Strong communication and collaboration skills, with the ability to explain complex architectural decisions to technical and non-technical audiences.
• Experience or knowledge of AIOps, AI-enabled operations, intelligent automation, LLM-based applications, agentic workflows, or operational analytics is preferred.
• Bachelor’s degree in Computer Science, Software Engineering, Telecommunications, Information Technology, or a related technical field, or equivalent practical experience.

Additional Information

This role is intended for a software and platform architect with deep Telco expertise, rather than a traditional network engineering profile.

The successful candidate will understand complex telecommunications platforms and network capabilities while approaching the ecosystem through a modern software and platform engineering lens. This includes defining clear ownership boundaries, designing reusable platform capabilities, establishing API and event models, reducing vendor coupling, enabling automation, and improving the observability and resilience of the overall Telco ecosystem.

We are looking for someone whose deepest area of expertise is Telco architecture, supported by strong experience in software engineering, platform architecture, cloud technologies, systems integration, and technical strategy.

The ideal candidate will be comfortable moving between the technical details of Mobile Core, IMS, BSS/OSS, provisioning, charging, subscriber management, interconnection, roaming, and vendor platforms, and broader architectural decisions involving platform ownership, system boundaries, orchestration, APIs, events, cloud, data, security, observability, automation, reliability, and scalability.

AI will be an important horizontal capability across the organization’s technology evolution. This position does not require an AI or Machine Learning specialist. However, the successful candidate should be able to identify where AI, data, and intelligent automation can create meaningful value across Telco architecture and operations and ensure that the appropriate platforms, integrations, telemetry, and data foundations are in place to support those use cases.

This position will play a key role in defining the technical capabilities the organization must build, own, integrate, and operate to advance toward Full MNO capabilities. The Staff Software Engineer will help create a Telco ecosystem in which software, cloud platforms, automation, data, and AI improve scalability, resilience, operational efficiency, customer experience, and internal engineering ownership.

Our Commitment to Inclusion

At Walmart Mexico and Central America, we are committed to fostering a culture of belonging. We seek to attract the best talent based on competencies, skills, and potential, and we do not discriminate on any basis, including gender, age, ethnic origin, physical appearance, marital status, HIV status or any other health condition, socioeconomic status, disability, sexual orientation, gender identity, or gender expression.

Therefore, during the talent attraction and selection process, we will not request personal information, photographs, or medical tests of any kind. A candidate’s personal information is not relevant to the interview process or the final hiring decision.

At Walmart Mexico and Central America, we are committed to providing our associates with a respectful workplace that is free from discrimination and sexual harassment.

At Walmart, we are continuously working to improve accessibility. If you require a reasonable accommodation during the recruitment process, please let the Recruiting team know.