דרושים Sr Ww Specialist Cloudops ב-אמזון ב-United States, California, San Francisco

Job summaryThe Role:
As a Sr. DSP and Wireless Systems Engineer working in the Digital RF Systems team, you will be responsible for DSP architecture definition, design and simulation of DSP blocks in wireless communication SOCs that are used in Kuiper phased array systems. You will be implementing end-to-end system models including fixed point DSP blocks, RF impairments of the radio, phased array antenna and satellite channel. You will be involved in novel techniques to estimate and correct RF impairments that will be implemented in HW and FW. Based on the system level constraints such as low power and cost, you will develop optimized solutions to support high throughput for our customers.As a Sr. DSP Engineer, you will engage with an experienced cross-disciplinary staff to conceive and design innovative product solutions. You will work closely with internal inter-disciplinary teams such as ASIC/RFIC designers, FW/SW engineers, design verification engineers. You will drive key aspects of the silicon design as well as the entire RF line-up. You will support validation of the silicon in the lab and optimize RF performance via algorithms.In this role you will:
· Design and model DSP algorithms such as beamforming, MIMO, DPD, CFR, digital cancellation schemes and RF impairment compensation
· Model RF transceivers impairments and develop RF impairment compensation algorithms. Develop and optimize HW/SW calibration algorithms for RF SOC and phased array systems
. Architect HW and FW partitioning of calibration algorithms
. Develop detailed test plans and test procedures for pre-silicon, help with design verification as well as post silicon validation, integration and characterization of RF Wireless SOC performance
Export Control Requirement:

· 7+ years of relevant experience in wireless DSP/RF systems engineering (LTE, 5G-NR, WiFi 802.11, BLE)
. In depth knowledge of DSP design for low power consumption ASIC
. Experience with MATLAB, Python and/or C/C++ for fixed point DSP algorithm development, modeling and simulation
. Solid understanding of OFDM, AGC, beamforming algorithms, MIMO, channel estimation, equalization techniques
. Solid understanding of RF blocks and components
. Experience in RF impairment estimation and compensation techniques
. Working knowledge of FW implementation of various DSP algorithms
. Experience in using lab equipment, bring-up and validation of chip
· MSEE/PhD is highly preferred with emphasis on digital signal processing and wireless communication systems

. Strong background in Communication Theory (signal estimation and detection, AGC, channel estimation), OFDM, MIMO, Digital/Wireless Communication Systems and engineering
. Extensive experience in designing low power/area digital signal processing blocks for Wireless RF SOCs
. Excellent understanding of RF architectures and blocks used in the Wireless SOCs
· MATLAB, Python, C++ experience with emphasis on fixed point modeling of DSP blocks, RF impairment modeling, RF calibration algorithm development, system performance simulations (EVM, ACRL, OOB emissions)
. Experience with bit-accurate modeling to match RTL implementations, emulations, FW development
. Familiarity with phased array systems and phased array performance optimization techniques
. Experience in silicon bring-up in the lab and using lab equipment such as vector spectrum analyzer, signal generators, high speed scopes and logic analyzers

About the Role:
You Will:
- Build and maintain the services that power Twitch’s video platform- Contribute positively to Twitch’s engineering culture

- 5+ years of non-internship professional software development experience
- 5+ years of programming with at least one software programming language experience
- 5+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience as a mentor, tech lead or leading an engineering team
- 5+ years of professional software development or equivalent expertise.
- B.A. or B.S. in Computer Science or a related discipline, or equivalent years of experience
- Experience building backend services at scale with technologies such as Golang and AWS
- Experience serving as a technical leader of a team of software engineers

- Familiarity with video delivery concepts and systems
- Familiarity with AWS’ Interactive Video Service
- Familiarity with Twitch, gaming, and/or streaming on TwitchPursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Export Control Requirement: Due to applicable export control laws and regulations, candidates must be a U.S. citizen or national, U.S. permanent resident (i.e., current Green Card holder), or lawfully admitted into the U.S. as a refugee or granted asylum.Key job responsibilities
- Develop and execute monitoring and maintenance of test equipment including mechanical, electrical, pneumatic, and vacuum systems
- Troubleshoot and repair failed or faulty components
- Design and implement automated control systems and safety interlocks
- Support day to day operations of HITL venues, including configuration management
- Assemble and deliver test racks including servers, data acquisition systems, sensors, actuators, and thermal control
- Follow ESD, low and high voltage, vacuum, and other safety protocols

- Experience in a Linux or Unix environment
- Experience troubleshooting and debugging technical systems
- Can lift and rack equipment up to 40 pounds
- 2+ years experience with electronics test equipment

- Experience configuring, deploying, and testing software updates, including the ability to identify issues and escalate to development as appropriate
- Experience working with hardware and software teams for setting up, testing, and troubleshooting prototype devices
- Experience scripting in modern programming languages
- 2+ years of demonstrating safety standards experience
- Experience in process design and documentation
- Experience with vacuum systems and high pressure inert gases

Key job responsibilities
We are seeking a Senior Security Engineer to be embedded within the eero organization, providing security expertise and strategic guidance across our entire solutions ecosystem. In this role, you will partner closely with software development teams to ensure we maintain the highest security standards while delivering innovative services that protect millions of homes and businesses. You'll be integrated directly within eero's innovative culture, ensuring security is thoughtfully woven into every decision from initial design through deployment and beyond.A day in the life
Your work will be dynamic and impactful. Day-to-day, you might find yourself analyzing application code for security vulnerabilities, building tools and frameworks that help developers work more securely and efficiently, or partnering with engineering teams to integrate security into new service architectures. You'll conduct comprehensive security reviews, and collaborate with product managers to balance security requirements with exceptional user experiences.

- Knowledge of at least two of the following programming languages: Scala, Java, Python, C/C++, or Go
- 3+ years of any combination of the following: threat modeling experience, secure coding, identity management and authentication, software development, cryptography, system administration and network security experience
- 3+ years of any combination of the following: application security frameworks, identity and access controls, incident response, mobile security, cloud computing and security, AI security, threat intelligence, and penetration testing experience
- Bachelor's degree in computer science or equivalent, or 2+ years of IT Security experience
- Comprehensive understanding of cloud and web security.

- Experience developing and delivering security software tools
- Experience working in identifying security issues and risks, and developing mitigation plans
- Knowledge of network and web related protocols such as TCP/IP, UDP, IPSEC, HTTP or equivalent
- Experience in analyzing data to drive decisions
- Experience with embedded systems or IoT device securityPursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

As a Senior Startup Investor Manager, Accelerators within AWS, you will execute our engagement strategy with startup accelerators. You'll combine technical understanding of cloud technologies with business development to evaluate and support high-potential startups. Your technical expertise will enable you to participate in architectural and technical discussions with founding teams, while your business acumen will help implement AWS's approach to accelerator partnerships.Key job responsibilities
Execute AWS market and technical strategy within assigned accelerator programsBuild and maintain relationships with accelerators and early-stage investorsImplement strategic initiatives that align AWS services with startup and accelerator needsAbout the team
About AWS
Diverse Experiences
AWS values diverse experiences. Even if you do not meet all of the qualifications and skills listed in the job description, we encourage candidates to apply. If your career is just starting, hasn’t followed a traditional path, or includes alternative experiences, don’t let it stop you from applying.Mentorship & Career Growth
We’re continuously raising our performance bar as we strive to become Earth’s Best Employer. That’s why you’ll find endless knowledge-sharing, mentorship and other career-advancing resources here to help you develop into a better-rounded professional.Work/Life Balance

- 5+ years of technology role experience
- Experience working with or having knowledge of cloud computing and existing cloud technologies
- Experience delivering against a large organization's long-term strategy and goals
- Bachelor's degree, or 4+ years of relevant technical position experience
- • Experience evaluating technical solutions in startup context

- • Experience with accelerator programs and early-stage startup ecosystems
- • Startup operating experience or early-stage investment experience
- • Experience with cloud-native applications
- • Understanding of emerging technologies
- • Experience in specific technical domains (AI/ML, Security, Infrastructure)Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

About the RoleYou can work from San Francisco, Seattle, or Vancouver, BC.You Will
- Design, develop, and maintain server-side processing software in C/C++, Rust, and Golang
- Perform codec implementation comparison studies and dive deep into media quality
- Iterate on metric and alarms to improve operational reliability
- Leverage data and experiments to guide media features from concept to production
Perks
* Medical, Dental, Vision & Disability Insurance
* 401(k)
* Maternity & Parental Leave
* Flexible PTO
* Amazon Employee Discount

- 6+ years of non-internship professional software development experience
- 6+ years of programming with at least one software programming language experience
- 6+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience as a mentor, tech lead or leading an engineering team
- B.A. or B.S. in Computer Science or a related discipline, or equivalent years of experience
- Expertise in client and server-side software engineering in production environments
- Experience optimizing multitenant, complex end-to-end systems including performance optimization at the component level
- Worked directly with customers in an enterprise B2B software environment
- Previous experience leading cross-team, cross-org technical media programs or features
- Strong familiarity with adaptive video streaming technologies (HLS, LL-HLS, DASH) and codecs such as H.264, H.265, and AV1

Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

Key job responsibilities
Design, develop, and ship mobile app features, user flows, and UI components that integrate ambient AI capabilitiesDrive improvements in code quality, maintainability, and app performance
Mentor peers and elevate our mobile development standards
Work with modern Android and React Native toolsA day in the life
This role offers a chance to shape the future of ambient personal AI at a pivotal moment. You’ll dive into prototyping new ideas, tackling complex integrations with AI models, and iterating quickly based on user feedback. Expect to collaborate across engineering, product, and design to solve real-time challenges in novel interfaces and identify opportunities for optimization. You’ll have access to new tools while enjoying the freedom to experiment in a lean, innovative team.

- 4+ years of non-internship professional software development experience
- 4+ years of programming with at least one software programming language experience
- 4+ years of leading design or architecture (design patterns, reliability and scaling) of new and existing systems experience
- Experience as a mentor, tech lead or leading an engineering team
- Experience shipping high-quality apps in Google Play Store
- Experience programming with TypeScript and Kotlin

- Bachelor's degree in computer science or equivalent
- Experience building AI-first products
- Experience working with BLE peripheralsPursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.