Senior Software Development Engineer

Sonos•Boston, MA

1d•Onsite

About The Position

At Sonos we want to create the ultimate listening experience for our customers and know that it starts by listening to each other. As part of the Sonos team, you’ll collaborate with people of all styles, skill sets, and backgrounds to realize our vision while fostering a community where everyone feels included and empowered to do the best work of their lives. Responsible for developing effective test plans and automation for the industry's most innovative embedded audio processing and networking solution for wireless streaming audio around the home. Collaborate with your partners in Development and Test to define and execute the test strategies in order to deliver highly secure and reliable products. Collaborate with other members of the wireless networking team to deliver features that are implemented, tested, and documented at the end of each sprint. Review requirements, behavior specifications, and design documents to begin test development early and uncover issues prior to implementation. Define and develop test automation to improve testing efficiency and coverage as well as uncover bugs. Investigate, log, track, and triage bugs to determine root cause and establish prioritization. Use instrumentation and telemetry to do data and issue analysis as well as bug triage.

Requirements

Bachelor’s degree (or foreign equivalent) in Computer Science, Software Engineering, Computer Engineering or related field plus 5 years of experience in the offered position or related position.
Understanding of the TCP/IP stack, including TCP, UDP, ICMP, ARP, DHCP, DNS, NAT, and IPv4/IPv6.
Understanding of networking subsystems, including Ethernet interfaces and their supporting drivers.
Experience with Linux operating systems and understanding of how WiFi drivers integrate without the OS.
Knowledge of open source test tools, including tcpdump, iperf, and Wireshark along with built-in Linux tooling for monitoring CPU and memory performance.
Experience debugging complex networking system issues and collaborating with partner organizations or vendors to drive resolutions.
Experience with automated network protocol tests using scripting languages which include TCL or Python.
Experience designing and executing test plans covering configuration, scalability, interoperability, and robustness of 802.11 wireless systems with indoor and outdoor applications, including end-to-end testing of network performance (throughput, jitter, latency, packet loss, and retransmission) under real world scenarios of congested mediums, roaming, and hand-offs.
Experience testing WIFI chipsets from Qualcomm, MediaTek, and Atheros when integrated with PowerPC or ARM based systems.
Experience with bring up testing in the early phases of hardware/software development cycle.
Experience designing and executing functional and interoperability testing of wireless mesh systems.
Experience analyzing multicast and broadcast traffic behavior and mDNS/Bonjour, relevant for smart device discovery.
Experience with 802.11 protocol analyzers and the demonstrated ability to use these tools to perform functional and regression testing of /b/g/n/ac standards across 2.4 GHz, 5 GHz, and dual-/tri-band operations.
Ability to analyze field reported failures and develop reproduction scenarios.

Responsibilities

Developing effective test plans and automation for embedded audio processing and networking solutions.
Collaborating with Development and Test partners to define and execute test strategies for secure and reliable products.
Delivering features that are implemented, tested, and documented at the end of each sprint.
Reviewing requirements, behavior specifications, and design documents to begin test development early and uncover issues prior to implementation.
Defining and developing test automation to improve testing efficiency and coverage.
Investigating, logging, tracking, and triaging bugs to determine root cause and establish prioritization.
Using instrumentation and telemetry for data and issue analysis, as well as bug triage.

Benefits

Medical, Dental, and Vision Insurance
A 401(k) plan with company matching and immediate vesting
An Open Time Off policy (OTO)
80 hours of sick time upon hire, refreshed annually
Up to 12 paid holidays per calendar year
Generous paid leave program for new parents or to care for a family member with a serious health condition
Short- and long-term disability for your own medical condition
Company-paid Disability, Life, and AD&D Insurance
Voluntary benefits, including Voluntary Life, AD&D, Accident, and Pet Insurance
Mental health benefits
A generous employee discount program
Sonos Radio HD