Roaming Operations Engineer Job at Vodafone (Pune)

Roaming Operations Support Engineer

We are seeking a Roaming Operations Support Engineer to ensure high availability...

Location

India , Pune

Salary:

Not provided

Vodafone

Expiration Date

Until further notice

Requirements

Experienced in telecom operations with 2–3 years in an operations environment, preferably in roaming
Skilled in network operations tools, processes, and practices with strong collaboration and communication abilities
Organised, result-oriented, and committed to quality and high performance
Advanced English proficiency (written and verbal)
Technical expertise in DRA, STP, and roaming services, with knowledge of SS7 SIGTRAN, Diameter S6, MAP protocol, and O&M configuration activities
Familiarity with Tekelec/Oracle DSR/Eagle STP/TOMIA VAS products and Linux/Unix administration

Job Responsibility

Manage hardware and software/application processes, configurations, system logs, and call flows
Investigate and resolve incidents within agreed SLAs
Perform testing, migration, upgrades, and configuration on Diameter/SS7/VAS products and interfaces
Prepare and execute MOPs for activities such as hardware/software upgrades and disk replacements
Notify and update stakeholders on ongoing incidents and follow up with vendors on complex technical issues
Support new projects, participate in workshops and training, and contribute to automation initiatives

What we offer

Opportunity to work on cutting-edge telecom technologies and international roaming platforms
Exposure to global projects and collaboration with cross-functional teams
Continuous learning through workshops and training programmes
A culture that values innovation, inclusion, and professional growth

New

Wireless Network Engineer

Our client is expanding their network engineering capabilities and needs an onsi...

Location

United States , Osceola

Salary:

Not provided

Robert Half

Expiration Date

Until further notice

Requirements

6–15+ years of network engineering experience, with strong wireless specialization
Hands-on expertise with Cisco ISE, including: 802.1X, RADIUS/TACACS+, EAP‑TLS / certificate authentication, Profiling, posturing, and access policies, Policy sets and identity groups
Strong wireless engineering foundation with: Cisco WLC / Catalyst controllers, WLAN design and site surveys, Wireless performance optimization, Cisco or Meraki APs
Experience supporting large, distributed wireless environments
Background in manufacturing, industrial, logistics, education, healthcare, or similar complex wireless/NAC ecosystems
Understanding of Cisco switching, VLANs, routing fundamentals, and identity‑based networking
Ability to work reliably onsite in a fast‑paced operational environment

Job Responsibility

Support and optimize enterprise‑scale Cisco wireless networks, including access points, controllers, and WLAN architecture
Serve as an onsite expert for Cisco ISE, including policy sets, 802.1X authentication, RADIUS/TACACS+, certificate‑based access, profiling, and NAC workflows
Conduct wireless performance tuning, troubleshooting, and RF analysis across challenging industrial environments
Implement and maintain secure network segmentation and identity-based access controls
Troubleshoot authentication failures, roaming issues, wireless interference, certificate issues, and access policy conflicts
Support Cisco switching environments (Catalyst platforms) as part of wireless integration and connectivity
Participate in upgrades, hardware lifecycle management, and environment modernization projects
Document configuration standards, performance metrics, diagrams, and runbooks for ongoing operations
Collaborate cross‑functionally with operations, plant leadership, safety teams, and engineering staff

What we offer

medical, vision, dental, and life and disability insurance
eligible to enroll in our company 401(k) plan
free online training

Staff Embedded Software Engineer (Wireless Networking)

As a Staff Embedded Software Engineer specializing in Wireless Networking, you w...

Location

United States , Boston

Salary:

118600.00 - 174000.00 USD / Year

SimpliSafe

Expiration Date

Until further notice

Requirements

Bachelor's or Master's degree in Electrical Engineering, Computer Engineering, Computer Science, or a related field
5+ years of experience in embedded firmware development with a strong focus on wireless networking
Expert-level proficiency in C/C++ for embedded systems
Deep understanding of the entire TCP/IP networking stack (Layers 2-7), including Ethernet, IP, TCP, UDP, DNS, DHCP, Thread, etc.
Extensive experience with WiFi (802.11) protocols, including MAC layer operations, roaming, power saving modes, and coexistence
Hands-on experience with embedded operating systems including FreeRTOS and Linux
Experience with various microcontrollers (e.g., ARM Cortex-M/R) and their peripherals
Proven ability to optimize embedded networking stacks for throughput, latency, power consumption, and memory footprint
Strong understanding of network security concepts, protocols, certificates/keys, firewalls, packet inspection and filtering
Familiarity with the following tools: Wireshark, Communications Analyzer, Traffic/Load generators, Network throttling, Wireless impairment test setups

Job Responsibility

Full Communications Stack Network Debugging & Optimization: Diagnose and resolve complex network connectivity, throughput, latency, and reliability issues across the entire networking stack, from the wireless radio (PHY/MAC layers) through TCP/IP and up to the application layer on embedded IoT devices
Protocol Implementation & Tuning: Implement, port, and optimize low power wireless (802.11, HaLow, Thread) and TCP/IP protocols to meet specific performance, power, and memory constraints of embedded systems
Performance Analysis: Conduct in-depth performance analysis of wireless and networking stacks, identifying bottlenecks and proposing innovative solutions for optimization (e.g., retransmission strategies, buffer management, concurrency, power management, scheduling)
Root Cause Analysis: Perform detailed root cause analysis of intermittent and hard-to-reproduce networking issues using advanced debugging techniques and tools
Cross-Functional Collaboration: Work closely with hardware engineers to characterize RF performance, integrate drivers, and troubleshoot hardware-firmware interactions. Collaborate with application software developers to ensure seamless integration and optimal use of network services
Testing & Validation: Define and help develop and comprehensive test plans for wireless our QA and Automation teams to include unit, integration, and system-level tests
Stay Current: Keep abreast of the latest advancements in wireless technologies, networking protocols, and embedded systems
Travel: Willing to travel to Asian manufacturing partners 1-3 times per year

What we offer

A mission- and values-driven culture and a safe, inclusive environment where you can build, grow and thrive
A comprehensive total rewards package that supports your wellness and provides security for SimpliSafers and their families
Free SimpliSafe system and professional monitoring for your home
Employee Resource Groups (ERGs) that bring people together, give opportunities to network, mentor and develop, and advocate for change
Participation in our annual bonus program, equity, and other forms of compensation, in addition to a full range of medical, retirement, and lifestyle benefits

Fulltime

Core Network Engineer – CS Core (ZTE)

This is a remote position. Position: Core Network Engineer – CS Core Technology/...

Location

Salary:

Not provided

Overture Rede

Expiration Date

Until further notice

Requirements

Strong hands-on experience with ZTE CS Core platforms
In-depth knowledge of CS Core architecture and signaling protocols (SS7, ISUP, MAP)
Experience with MSC, MGW, HLR/VLR, and signaling networks
Knowledge of call flow analysis, troubleshooting, and performance optimization
Familiarity with OSS tools for fault and performance management
Strong analytical and problem-solving skills
Work Experience: 10

Job Responsibility

Operate, configure, and maintain ZTE CS Core network elements such as MSC, MGW, HLR, VLR, and STP
Monitor core network performance, alarms, and KPIs to ensure high availability and reliability
Perform fault troubleshooting and root cause analysis for CS Core network issues
Handle configuration changes, software upgrades, patches, and license management
Coordinate with RAN, Transmission, and OSS teams for end-to-end service stability
Support interconnection, roaming, and signaling operations
Maintain accurate documentation of network configurations, changes, and incidents

Connectivity Software Engineer

OpenAI is seeking a Connectivity Software Engineer to design, implement, and opt...

Location

United States , San Francisco

Salary:

293000.00 - 325000.00 USD / Year

OpenAI

Expiration Date

Until further notice

Requirements

Deep experience shipping wireless features on Linux-based products
Highly proficient in C/C++ with scripting experience (Python or shell) and systems debugging (gdb, strace, logs, packet traces)
Deep knowledge of Bluetooth Classic/BLE (HCI, L2CAP, GATT/GAP, profiles) and Wi-Fi (802.11 a/b/g/n/ac/ax, WPA2/3, nl80211, NAN)
Hands-on experience with BlueZ, wpa_supplicant/hostapd, NetworkManager, and driver bring-up on ARM64 or x86 platforms
Proven track record of improving real-world performance and reliability under RF constraints

Job Responsibility

Design, implement, and debug Bluetooth/BLE and Wi-Fi features across kernel drivers, BlueZ/wpa_supplicant/hostapd, and systemd/D-Bus services
Deliver robust pairing, bonding, and provisioning flows (GATT/GAP, LE Audio/LC3, WPA3/802.1X, captive portals, NAN)
Optimize link performance: throughput, latency, jitter, roaming, coexistence (BT↔Wi-Fi), and power modes (TWT, WoWLAN)
Build reliable network management using NetworkManager/nmcli, nl80211/cfg80211/mac80211, DNS/DHCP/mDNS, P2P/SoftAP
Instrument and analyze with packet captures and tooling (btmon/hcidump, Wireshark, iperf, eBPF/perf, spectrum sniffers)
Drive interoperability and certification readiness (Bluetooth SIG, Wi-Fi Alliance) and resolve field issues with root-cause fixes
Contribute to OTA-safe configuration, telemetry, and diagnostics for fleet-scale operation

What we offer

Medical, dental, and vision insurance for you and your family, with employer contributions to Health Savings Accounts
Pre-tax accounts for Health FSA, Dependent Care FSA, and commuter expenses (parking and transit)
401(k) retirement plan with employer match
Paid parental leave (up to 24 weeks for birth parents and 20 weeks for non-birthing parents), plus paid medical and caregiver leave (up to 8 weeks)
Paid time off: flexible PTO for exempt employees and up to 15 days annually for non-exempt employees
13+ paid company holidays, and multiple paid coordinated company office closures throughout the year for focus and recharge, plus paid sick or safe time (1 hour per 30 hours worked, or more, as required by applicable state or local law)
Mental health and wellness support
Employer-paid basic life and disability coverage
Annual learning and development stipend to fuel your professional growth
Daily meals in our offices, and meal delivery credits as eligible

Fulltime

Wi-Fi Development & Integration Engineer

We are seeking a Wi-Fi Development & Integration Engineer to join our Automotive...

Location

India , Chennai

Salary:

Not provided

Aptiv plc

Expiration Date

Until further notice

Requirements

Bachelor’s or Master’s in Electronics, Computer Engineering, Telecommunications, or related field
4–8 years in Wi-Fi driver development, system integration, or debugging on embedded platforms
Strong understanding of Wi-Fi standards (802.11a/b/g/n/ac/ax)
Hands-on experience with modes: STA, SoftAP, P2P, Wi-Fi Direct
Familiar with Wi-Fi security protocols (WPA2, WPA3, 802.1X/EAP)
Debugging tools: Wireshark, Omnipeek, chipset-specific tools (QXDM/QCAT for Qualcomm, iw/iperf)
Knowledge of Linux networking stack (wpa_supplicant, hostapd, netlink)
Experience in dual-band concurrent operation and roaming optimization

Job Responsibility

Wi-Fi Stack Integration: Integrate and configure Wi-Fi drivers, firmware, and middleware in infotainment platforms (QNX, Linux, Android Automotive)
Enable Wi-Fi modes (Station, SoftAP, P2P, Wi-Fi Direct, Dual Band Concurrent)
Customize Wi-Fi settings for infotainment use cases (Hotspot, Tethering, V2X handoff, projection features)
Development & Debugging: Debug and resolve issues in connectivity, roaming, throughput, and security (WPA3, EAP)
Analyze kernel/driver logs, firmware traces, and packet captures (Wireshark, Omnipeek)
Optimize Wi-Fi performance for high-bandwidth use cases such as Wireless Android Auto, CarPlay over Wi-Fi, and HD streaming
Work with BT team to resolve coexistence issues (BT + Wi-Fi + LTE/5G)
System Integration: Collaborate with telephony, networking, and infotainment application teams to integrate Wi-Fi features seamlessly
Ensure Wi-Fi reliability for OTA update framework, cloud services, and voice assistants (Alexa/Google)
Support Wi-Fi security certifications and regulatory compliance (FCC/CE)

What we offer

Higher Education Opportunities (UDACITY, UDEMY, COURSERA are available for your continuous growth and development)
Life and accident insurance
Sodexo cards for food and beverages
Well Being Program that includes regular workshops and networking events
EAP Employee Assistance
Access to fitness clubs (T&C apply)
Creche facility for working parents
Competitive health insurance package

Fulltime

Senior Core Network Engineer

We are looking for an expert engineer to lead the design, deployment, and expans...

Location

Salary:

Not provided

Airalo

Expiration Date

Until further notice

Requirements

Experience with a Tier 1 Carrier, Mobile-Operator, or Major Network Equipment Provider (NEP) background
Deep understanding of SGSN, GGSN, and HLR architecture
Extensive experience with PGW, HSS, SGW, and MME
Proficiency in 5G Non-Standalone (NSA), 5G Standalone (SA), and PCC
Hands-on experience with Diameter S6a (HSS-MME), Gx (PCRF-PGW), and Gy (OCS-PGW)
Strong knowledge of IP addressing, subnetting, OSPF/BGP routing, VRFs, and ASN management
Expert-level DNS resolution (A, AAAA, SRV, NAPTR), DHCP, and IPX/GRX management

Job Responsibility

Design and dimension the Packet Core (EPC/5GC) to ensure scalability for data growth
Manage roaming coverage with IPX/GRX providers, roaming sponsors, and direct bi-lateral agreements
Define specific network profiles and configurations for HSS/UDM subscribers, including QoS, AMBR, and APN subscriptions
Architect the DNS hierarchy for the mobile core, focusing on S-NAPTR records for MME/SGSN to discover PGW/SGW/UPF nodes
Plan and implement IP routing strategies, including ASN (Autonomous System Number) management and BGP peering for internet and roaming connectivity
Manage Access Point Name configurations for various service types, including IMS, Internet, and IoT
Perform deep-dive troubleshooting of signaling procedures across 3G (Iu-PS), 4G (S1-MME, S11, S5/S8), and 5G NSA (EN-DC)
Apply in-depth understanding of 3GPP standards for 3G, 4G EPC, and 5G NSA mobile data call-flows
Analyze and optimize critical flows, specifically Attach/Registration (Authentication vectors, ULR/ULA, Create Session) and Bearer Management (Dedicated bearer creation for VoLTE/QCI 1 and default bearers)
Utilize protocol analyzers such as Wireshark or Tektronix to decode ASN.1 based messages and Diameter signaling (Gx, Gy, S6a, S5, S8, GTP-C, GTP-U)

What we offer

Health Insurance
work-from-anywhere stipend
annual wellness & learning credits
annual all-expenses-paid company retreat in a gorgeous destination & other benefits

Fulltime

Senior Core Network Engineer

Location

Spain; United Kingdom

Salary:

Not provided

Airalo

Expiration Date

Until further notice

Requirements

At least 3 years in a hands-on engineering or architectural capacity in one of the following environments: Tier 1 Carrier / Mobile Network Operator (MNO)
Major Network Equipment Provider (NEP)
MVNO / MVNE
Primary responsibility for High-Level Design (HLD) or Low-Level Design (LLD) in one or more of: DNS Hierarchy: Designing S-NAPTR records for MME/SGSN node discovery (PGW/SGW/UPF)
IP Strategy: Managing ASN (Autonomous System Numbers) and BGP peering for internet/roaming connectivity
Subscriber Mapping: Defining HSS/UDM profiles, including QoS, AMBR, and APN subscriptions
Capacity Planning: Dimensioning EPC/5GC nodes to handle specific data growth projections
Roaming Architecture: Designing IPX/GRX connectivity and bi-lateral roaming agreements
Comfortable working in a remote environment
Based in Spain or UK

Job Responsibility

Leading the design and expansion of our Packet Core

Fulltime

Roaming Operations Engineer

Vodafone

Location:
India , Pune

Category:
IT - Administration

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
March 04, 2026

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Job Posted:
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