Full-Time
Senior Digital Signal Processor Software Engineer
Posted on 11/23/2025
Viavi Solutions
1,001-5,000 employees
Provides network performance, optical security solutions
No salary listed
Remote in USA + 1 more
More locations: Las Vegas, NV, USA
Hybrid
 Software Engineering (1) |
|---|
- BS Degree or higher in Electrical Engineering, Computer Science, or Computer Engineering. MS preferred.
- 5+ years of Software Development experience
- Excellent knowledge of communication systems theory and signal processing concepts
- Ability to understand and formulate mathematical, statistical, and computational models
- Proficient in algorithm modeling tools such as MATLAB/Simulink
- Proficient in DSP programming on ARM based multi-core processors such as Cortex, M4, M7
- Experience developing/debugging applications and device drivers for RTOS
- Proficiency in C Design
- Good understanding of GNSS and RF transmission technology, including signaling
- Hands-on experience in lab equipment such as scopes, spectrum analyzers, signal generators
- Solid technical leadership skills and ability to serve as a project lead
- Excellent problem solving & troubleshooting skills.
- Able to understand new system architectures quickly
- Excellent verbal and written communication skills
- Enjoy working in a highly collaborative environment
- Highly motivated, able to work independently with minimal direction
- Derive requirements, conceptualize, define, design & prototype PNT solutions
- Create, analyze and refine the required DSP algorithms using mathematical analysis tools such as MATLAB/Simulink
- Develop software using C in an RTOS environment to translate algorithm prototypes into optimized, production-quality code suitable for operational deployment
- Perform hardware/software integration, debugging, and code optimization on target platforms
- Interface with cross-functional teams and sites and customers to define and implement new features
- Coordinate technical discussions and collaborate with platform and system architects to make design decisions
- May act as technical lead and provide mentoring to other software engineers
- GNSS signals and systems
- Knowledge/Experience with Cortex M4/M7, embedded programming and memory optimization
- Performance optimization for resource-limited embedded platforms
- Understanding of GNSS functional blocks and capabilities including antennas, filters, duplexers, oscillators, frequency converters, modulators, and demodulators.
- Understanding of GPS, QPSK, satellite signal tracking
- Kalman filter integration and optimization
- Experience with Phased Array Antennae technology
- Experience with version control systems (preferably Git)
- Experience using an Agile-based development process (preferably Scrum)
- Experience with project tracking software, preferably Atlassian tools (Jira, Confluence, Crucible)
- Implementing DSP algorithms in FPGA hardware from Intel and AMD
- Experience in secure and jamming-resistant Wifi technologies and protocols
- Zero-IF and Heterodyne receiver implementations
- Particle filter implementation and optimization
- C++ and OO programming
- Analog to Digital filter conversion and porting
- RF group delay signal-chain analysis and compensation
- GNSS oscillator disciplining
- Navigation protocols such as NMEA, SCPI, and ICD-GPS-153
- Familiarity with FrameMaker documentation tools
VIAVI Solutions provides test, measurement, and assurance products for networks and services, along with optical security solutions. It serves mobile operators, governments, enterprise networks, and infrastructure contractors, offering hardware and software tools to design, deploy, monitor, and verify network performance and security. Unlike many competitors, VIAVI combines breadth across telecom networks with optical security capabilities and serves a global customer base, enabling end-to-end validation and protection of critical infrastructure. The company’s goal is to help customers deploy and operate reliable, high-performance networks and services while ensuring security and compliance.
Company Size
1,001-5,000
Company Stage
IPO
Headquarters
Newbury, Massachusetts
Founded
1923
Simplify's Take
What believers are saying
- Q3 2026 revenue hit $406.8M, up 42.8%, from Spirent and AI data centers.
- ECSite integration cuts data center testing errors 90%, integrates DCX-700 series.
- Stifel 'buy' rating drove shares to 24-year high of $36.03 in March 2026.
What critics are saying
- Keysight Ixia PerfectStorm delivers 1Tbps encrypted traffic in 1RU, erodes hyperscale share.
- Dell'Oro forecasts 30% Spirent customers migrate to Keysight, leaking $50M revenue.
- RSA 2026 exposed CF1000 quantum-safe flaw, cancels 20-30% DoD contracts.
What makes Viavi Solutions unique
- CF1000 generates 1.2Tbps stateful traffic in 2RU with 400G OSFP ports.
- CyberFlood validates AI inference and quantum-safe cryptography at 500Gbps encrypted throughput.
- TTworkbench and M1 Appliance certified for IEEE 802.1AS TSN conformance testing.
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Benefits
Health Insurance
401(k) Retirement Plan
Company News
VIAVI Solutions has announced that its TTworkbench gPTP test suite and TestCenter M1 Appliance have been recognised as an IEEE 802.1AS Avnu Certification Test Tool solution under the Avnu Alliance Time-Sensitive Networking Component Certification Program. The solution will be showcased at the Avnu Alliance Plugfest in London from 20–24 April. The certification test tool enables device manufacturers, silicon providers and test laboratories to validate conformance for TSN protocols and ensure interoperability across multi-vendor TSN ecosystems. VIAVI's solution combines automated TSN conformance testing with traffic generation and timing analysis in a single workflow. The Avnu Alliance Component Certification Program supports standardised validation across TSN-enabled devices in automotive, industrial, professional audio, aerospace and defence applications.
VIAVI Solutions has partnered with Ground Control to integrate its Secure µPNT STL-1000 receiver into RockFLEET Assured, an asset tracking and navigation solution for maritime vessels operating in GNSS-denied environments. The compact software-defined receiver delivers precise timing with holdover capability, enabling tracking and navigation in denied, degraded and disrupted space operational environments. It addresses vulnerabilities from GPS jamming and spoofing, which have become increasingly common in cyber warfare. RockFLEET Assured is a marine-grade positioning, navigation and timing solution designed to support maritime vessel navigation when GNSS signals are unavailable. The partnership aims to strengthen resilience for mission-critical operations across defence, maritime and critical infrastructure sectors by providing a trusted secondary position source beyond traditional GPS reliance.
Viavi Solutions reported Q4 revenues of $369.3 million, up 36.4% year-on-year and exceeding analyst expectations by 1.1%. The telecommunications testing and monitoring solutions provider delivered the fastest revenue growth amongst five inspection instruments stocks tracked, beating EBITDA estimates and providing strong EPS guidance for next quarter. CEO Oleg Khaykin attributed the performance to strength across most end markets, particularly data centres and aerospace and defence applications. The company expects this momentum to continue driving growth through the calendar year. Viavi's shares have surged 75.5% since the earnings report and currently trade at $36.90. Across the sector, inspection instruments stocks averaged 21.4% gains, with the group collectively beating revenue estimates by 0.9%.
Viavi Solutions climbed to a 24-year high on Tuesday, reaching $36.03 intraday before closing 6.93% higher at $35.94 per share. The surge followed a "buy" recommendation from Stifel, which maintained a $35 price target after the company showcased its AI solutions portfolio at a California conference. Viavi displayed products including 1.6T Ethernet testing, silicon photonics manufacturing and fiber inspection tools. The company introduced its INX 700 probe microscope and DCX-700 optical loss test set, which enables 24-fibre simultaneous measurement. Viavi is also participating in the RSA Conference in San Francisco from 23 to 26 March, where it has presented its Observer Threat Forensics tool designed to help organisations identify security vulnerabilities and analyse data breaches.
VIAVI Solutions has launched Observer Threat Forensics, a solution combining network operation management with CrowdStrike-powered threat intelligence to support converged NetSecOps teams. The platform provides retrospective analysis capabilities and unifies packet insights, flow data and log telemetry into a single dashboard. The solution addresses growing demand for convergence between network and security operations. VIAVI's State of the Network study found that 79% of 750 surveyed CIOs and CISOs wanted to move away from siloed operational models, yet only 27% have begun the transition. Observer Threat Forensics leverages existing network performance monitoring data to provide both performance insights and security threat investigation capabilities. The platform helps organisations identify vulnerabilities, analyse breaches and understand intrusion points whilst eliminating data gaps. VIAVI showcased the solution at the RSA Conference in San Francisco from 23-26 March.