דרושים Sr Data Scientist - Analytics ב-אמזון ב-United States, San Francisco

We have an immediate opening for a Field Engineer in the San Antonio, TX region.As an Amazon Field Engineer, you will provide full life-cycle support to AWS Data Centers from design inception through site improvement and maintenance. You will be the ‘go to’ engineering resource for your region when technical advice is needed, and will use your subject matter expertise and engage with diverse teams to:- Perform design and equipment submittal review for new Data Centers in your region.
- Troubleshoot, conduct Root Cause Analysis (RCA) and create Corrective Action (CA) documentation for site/equipment failures.
- Directly support operational issues with ad-hoc training, complex operating procedure reviews, including critical equipment, and event support.
- Own the design for existing data center upgrades and design-solutions, which add capacity, improve availability, and increase efficiency.- Work on concurrent projects, sometimes in multiple geographical regions.- Act as resident engineer during new construction projects. Support construction, commissioning, and turnover.Must have a valid US driver's license and reliable personal transportation by start date.This position requires that the candidate selected be a US Citizen and obtain and maintain an active TS/SCI security clearance with polygraph.Key job responsibilities
* Possess Strong Engineering Judgement and are able to provide recommendations despite uncertainty/ambiguity.* Are detail and data oriented?* Have experience solving problems with engineered solutions.* Have experience managing engineering projects and consultants.* Build trust and relationships with different stakeholders (e.g., Operations, Controls, Construction, Design, Commissioning, Product Managers, Technical Program Managers).* Are adaptable and inclined to get into the field to see things up close.* Excited about a mix of office and field work.A day in the life
Each day you will interact with different teams responsible for all aspects of the data centers. You will prioritize your activities to support data center capacity availability and safety focusing on the actions that are most impactful. You will have the opportunity to work on projects locally and globally.If you meet these qualifications, exude passion, and enjoy the challenge of innovative projects at hyper-scale, this job is for you!
You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with people across AWS to help us deliver the highest standards for safety and security while providing seemingly infinite capacity at the lowest possible cost for our customers. And you’ll experience an inclusive culture that welcomes bold ideas and empowers you to own them to completion.Amazon values diverse experiences. Even if you do not meet all of the preferred 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.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.

- Bachelor’s Degree in Electrical Engineering or equivalent experience.

- Organized and have the ability to set priorities and meet deadlines and budget and experience using a variety of web based and other software tools for calculation and data processing.- Direct experience with the design, construction, operation, or maintenance of mission critical facilities, especially data centers.- Experience as resident engineer or hands-on (in the field) design consultant or owner’s engineer and knowledge of building codes and regulations for your region.- Experience reading, interpreting, and creating construction drawings, specifications, and submittal documents. and ability to carry design concepts through exploration, development, and into deployment/mass production- Basic understanding of both mechanical and/or electrical equipment/design related to data centers (Including but not limited to: uninterruptable power sources, diesel generators, electrical switchgear, power distribution units, variable frequency drives, automatic/static transfer switches, chillers [air-cooled and water-cooled], pumps, cooling towers, heat exchangers, CRAHs, fans, air economizers, water treatment, etc...), and EPMS/SCADA/BMS Controls system experience (software and/or hardware)

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

You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with people across AWS to help us deliver the highest standards for safety and security while providing seemingly infinite capacity at the lowest possible cost for our customers. And you’ll experience an inclusive culture that welcomes bold ideas and empowers you to own them to completion.* This position requires that the candidate selected be a US Citizen and must currently possess and maintain an active TS/SCI security clearance with polygraph.Key job responsibilities
You will be required to engage in physical data center activities with or without reasonable accommodation. This includes all tasks associated with planning and tracking capacity, rack deployment, rack cabling, hardware and software troubleshooting, and rack decommissioning.These activities include the following:
• Lifting and moving material up to 49 pounds each
• Working in cramped and/or elevated locations
• Bending, lifting, stretching, and reaching
• Standing and walking for up to 8+ hours a day
• Ascending and descending ladders, stairs, and gangways safely and without limitation
• Work in a noisy environment
• Work shifts longer than 8 hours to support 24/7 operations (covering both night and day shifts, weekend, and holidays).A day in the life
Our Data Center Technician professionals, who have industry-leading technical abilities and demonstrate a breadth of knowledge:• Take ownership of technical issues brought by their customer base, engaging other teams when needed to drive resolution
• Show a strong aptitude for troubleshooting and problem solving
• Solve problems at their root and step back to understand the broader context
• Maintain service level agreements through the implementation of proactive issue detection and reporting
• Are biased to act in the absence of direction or support
• Improve effectiveness through process innovationThis position will fill an opening at one of multiple separate sites.
Amazon values diverse experiences. Even if you do not meet all of the preferred 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.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.

- High school or equivalent diploma, or A+ or CND (Certified Network Defender) or Network+ or Security+
- Current, active US Government Security Clearance of TS/SCI with Polygraph

- Hands-on experience with one or more of the follow hardware platforms (e.g. Dell, HP) is a plus.
- Networking experience with CCNA and/or Network+ certifications is a plus.
- Previous experience working in a Data Center environment (racking & stacking gear, cable management, hot & cold aisle containment).
- Associate's degree in IT-related field plus two years of progressively responsible experience preferred.

interviewing tips on Instagram, and discover projects we're solving on our Blog.About the RoleYou will report to the Applied Science Manager on the Community Discovery Team.You can work in San Francisco, CA or Seattle, WA.You Will- Develop ML algorithms for recommendations, ranking and search problems that can improve discovery on Twitch.

- BS or MS or PhD in Computer Science, Machine Learning, Data Science, Statistics, Mathematics, with relevant industry experience. We welcome applicants with non-traditional backgrounds. We welcome applicants with non-traditional backgrounds.
- Hands-on experience with predictive modeling and analysis to solve real-world problems.
- Proficiency with Python and Deep Learning Frameworks such as PyTorch or Tensorflow, basic proficiency with SQL.

- MS/PhD in relevant fields or a Degree with a specialization in Machine Learning.
- Experience shipping your models to production.
- 1+ years of experience working in recommendations or search.
- Papers in top ML conferences of journals such as Neurips, Recsys, ICLR, ICML etc.
- Familiarity with Twitch, its business, and its community.Pursuant to the San Francisco Fair Chance Ordinance, we will consider for employment qualified applicants with arrest and conviction records.

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.

You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with people across AWS to help us deliver the highest standards for safety and security while providing seemingly infinite capacity at the lowest possible cost for our customers. And you’ll experience an inclusive culture that welcomes bold ideas and empowers you to own them to completion.
* This position requires that the candidate selected be a US Citizen and must currently possess and maintain an active TS/SCI security clearance with polygraph.Key job responsibilities
You will be required to engage in physical data center activities with or without reasonable accommodation. This includes all tasks associated with planning and tracking capacity, rack deployment, rack cabling, hardware and software troubleshooting, and rack decommissioning.
These activities include the following:
• Lifting and moving material up to 49 pounds each
• Working in cramped and/or elevated locations
• Bending, lifting, stretching, and reaching
• Standing and walking for up to 8+ hours a day
• Ascending and descending ladders, stairs, and gangways safely and without limitation
• Work in a noisy environment
• Work shifts longer than 8 hours to support 24/7 operations (covering both night and day shifts, weekend, and holidays).
A day in the life
Our Data Center Technician professionals, who have industry-leading technical abilities and demonstrate a breadth of knowledge:
• Take ownership of technical issues brought by their customer base, engaging other teams when needed to drive resolution
• Show a strong aptitude for troubleshooting and problem solving
• Solve problems at their root and step back to understand the broader context
• Maintain service level agreements through the implementation of proactive issue detection and reporting
• Are biased to act in the absence of direction or support
• Improve effectiveness through process innovation
This position will fill an opening at one of multiple separate sites.
Amazon values diverse experiences. Even if you do not meet all of the preferred 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.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.

- High school or equivalent diploma, or A+ or CND (Certified Network Defender) or Network+ or Security+
- Current, active US Government Security Clearance of TS/SCI with Polygraph

- Hands-on experience with one or more of the follow hardware platforms (e.g. Dell, HP) is a plus.
- Networking experience with CCNA and/or Network+ certifications is a plus.
- Previous experience working in a Data Center environment (racking & stacking gear, cable management, hot & cold aisle containment).
- Associate's degree in IT-related field plus two years of progressively responsible experience preferred.

- Show a strong aptitude for troubleshooting and problem solving
- Solve problems at their root and step back to understand the broader context
- Maintain service level agreements through the implementation of proactive issue detection and reporting
- Are biased to act in the absence of direction or support
- Improve effectiveness through process innovationWe are committed to developing a diverse workforce and we are even more committed to working with you to make that happen. Depending on the type of job, you will be required to engage in physical data center activities with or without reasonable accommodation. These activities include the following:- Lifting and moving material up to 49 pounds each- Bending, lifting, stretching, and reaching
- Standing and walking for up to 8+ hours a day
- Ascending and descending ladders, stairs, and gangways safely and without limitation
- Work in a noisy environment
- Work shifts longer than 8 hours to support 24/7 operations (covering both night and day shifts).
- Upon graduating from program and deployed to your assigned data center, you will be required to work shift work that will include days/nights/weekends/holidays.This position requires that the candidate selected be a US Citizen and must currently possess and maintain an active TS/SCI security clearance with polygraph.Key job responsibilities
You will be required to engage in physical data center activities with or without reasonable accommodation. This includes all tasks associated with planning and tracking capacity, rack deployment, rack cabling, hardware and software troubleshooting, and rack decommissioning.These activities include the following:• Lifting and moving material up to 49 pounds each
• Working in cramped and/or elevated locations
• Bending, lifting, stretching, and reaching
• Standing and walking for up to 8+ hours a day
• Ascending and descending ladders, stairs, and gangways safely and without limitation
• Work in a noisy environment
• Work shifts longer than 8 hours to support 24/7 operations (covering both night and day shifts, weekend, and holidays).
A day in the life
Our Data Center Technician professionals, who have industry-leading technical abilities and demonstrate a breadth of knowledge:
• Take ownership of technical issues brought by their customer base, engaging other teams when needed to drive resolution
• Show a strong aptitude for troubleshooting and problem solving
• Solve problems at their root and step back to understand the broader context
• Maintain service level agreements through the implementation of proactive issue detection and reporting
• Are biased to act in the absence of direction or support
• Improve effectiveness through process innovation
This position will fill an opening at one of multiple separate sites.
You’ll join a diverse team of software, hardware, and network engineers, supply chain specialists, security experts, operations managers, and other vital roles. You’ll collaborate with people across AWS to help us deliver the highest standards for safety and security while providing seemingly infinite capacity at the lowest possible cost for our customers. And you’ll experience an inclusive culture that welcomes bold ideas and empowers you to own them to completion.Amazon values diverse experiences. Even if you do not meet all of the preferred 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.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.

- High school or equivalent diploma, or A+ or CND (Certified Network Defender) or Network+ or Security+
- Current, active US Government Security Clearance of TS/SCI with Polygraph

- Hands-on experience with one or more of the follow hardware platforms (e.g. Dell, HP) is a plus.
- Networking experience with CCNA and/or Network+ certifications is a plus.
- Previous experience working in a Data Center environment (racking & stacking gear, cable management, hot & cold aisle containment).
- Associate's degree in IT-related field plus two years of progressively responsible experience preferred.