CrawlJobs Logo

Staff Backend Engineer, Speech AI

inworld.ai Logo

Inworld AI

Location Icon

Location:
United States , Mountain View

Category Icon

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

200000.00 - 300000.00 USD / Year

Job Description:

Our intelligent runtime must seamlessly connect to foundational models to power real-time, interactive experiences. For this to be possible at scale, the infrastructure that serves these models, especially for demanding tasks like Text-to-Speech (TTS) and Speech-to-Text (STT), must be exceptionally fast, reliable, and cost-effective. We are seeking a Staff Backend Engineer to build this critical infrastructure. You will be responsible for designing, building, and scaling the backend systems that serve our voice production models. Your work will focus on the difficult engineering problems of building a robust, low-latency platform that forms the backbone of the next generation of AI-driven software.

Job Responsibility:

  • Own features end-to-end, from collaborating on the initial concept with product managers to shipping and monitoring the final product
  • Translate product requirements and user needs into robust, scalable, and maintainable backend services and APIs
  • Design, build, and launch user-facing APIs and backend systems in Python, Java/Kotlin, and Go that deliver seamless voice experiences
  • Partner closely with Product Managers and ML engineers to define scope, identify technical trade-offs, and drive the product roadmap forward
  • Write high-quality, production-grade code that powers real-time audio processing, model inference, and complex data pipelines
  • Champion engineering and product excellence, with a focus on delivering tangible value to our users quickly and iteratively

Requirements:

  • A BA/BS degree in Computer Science or a related technical field, or equivalent practical experience
  • 5+ years of professional experience in software development, with a proven track record of shipping high-quality, user-facing products
  • Strong product sense and an ability to think critically about user experience and business impact
  • Demonstrated experience in building and scaling production-grade backend APIs and distributed systems
  • Strong proficiency in Python and professional experience with one or more of the following: Java/Kotlin, or Go
  • Hands-on experience with containerization (Docker) and deploying services on orchestration platforms like Kubernetes
  • A solid foundation in data structures, algorithms, and system design

Nice to have:

  • A customer-first mindset and a passion for creating intuitive and powerful developer or end-user experiences
  • Experience building backend services for speech processing (TTS/STT) or other real-time ML applications
  • The ability to thrive in a fast-paced, collaborative environment and a bias for action and rapid iteration
  • Familiarity with major cloud platforms like GCP or AWS
What we offer:
  • bonus
  • equity
  • benefits
  • relocation assistance

Additional Information:

Job Posted:
December 09, 2025

Employment Type:
Fulltime
Work Type:
On-site work
Job Link Share:

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Staff Backend Engineer, Speech AI

Staff / Principal Machine Learning Engineer

Our intelligent runtime must seamlessly connect to foundational models - whether...
Location
Location
United States , Mountain View
Salary
Salary:
240000.00 - 385000.00 USD / Year
inworld.ai Logo
Inworld AI
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A PhD in a relevant technical field, or a BA/BS degree with equivalent research and/or engineering experience
  • 5+ years of combined experience in software development (Python, C++) and applied ML engineering
  • Demonstrated experience applying or researching ML in domains such as natural language processing, speech processing, and/or action planning
  • Strong foundation in data structures, algorithms, and neural network architectures
  • Proficiency with ML frameworks such as PyTorch
Job Responsibility
Job Responsibility
  • Experiment with and implement cutting-edge ML models and techniques to advance our core AI capabilities
  • Train, evaluate, and optimize production-scale models and systems, focusing on quality, latency, cost, and on-device constraints
  • Collaborate with product and backend teams to translate novel ideas and research findings into robust, production-ready solutions
What we offer
What we offer
  • bonus
  • equity
  • benefits
  • relocation assistance
  • Fulltime
Read More
Arrow Right

Staff Voice AI Engineer

Applied AI at Uber builds intelligent systems that power next-generation product...
Location
Location
United States , San Francisco; Sunnyvale
Salary
Salary:
232000.00 - 258000.00 USD / Year
uber.com Logo
Uber
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 10+ years of experience in software engineering, data science, or machine learning, including a track record of shipping production AI systems
  • Deep understanding of large language models, including fine-tuning, prompt engineering, embeddings, and retrieval-augmented generation (RAG)
  • Strong backend and distributed systems expertise, with experience designing and operating highly available, scalable services in production
  • Deep experience with ML infrastructure, including model training pipelines, online serving systems, feature stores, experiment platforms, and evaluation frameworks
  • Hands-on experience with distributed data processing systems (e.g., Spark, Flink, Ray) and workflow orchestration (e.g., Airflow or equivalent)
  • Ability to analyze data, run experiments, and derive insights for model and product improvement
  • Excellent communication and collaboration skills across technical and non-technical teams
Job Responsibility
Job Responsibility
  • Design and build end-to-end Voice AI solutions, from understanding customer pain points and defining product requirements to deploying LLM-powered, real-time voice interfaces in production
  • Benchmark and evaluate voice AI systems, including speech recognition, speech synthesis, and spoken language understanding, by designing evaluations, analyzing results, and identifying systematic weaknesses
  • Improve voice model performance through system prompt tuning, fine-tuning voice- and speech-specific models, and optimizing architectures for low-latency, real-time voice interactions
  • Analyze voice request logs, prompt traces, and audio inputs to diagnose failure modes, improve transcription accuracy, conversational quality, and overall user experience
  • Build and maintain internal tools and platforms to automate Voice AI workflows, such as large-scale transcription pipelines, real-time audio processing services, and evaluation harnesses for voice quality
  • Own Voice AI systems in production end-to-end, including rollout strategies, monitoring, alerting, quality regression detection, and on-call readiness
  • Collaborate closely with product, design, and research teams to translate user needs into Voice AI capabilities with measurable business and customer impact
What we offer
What we offer
  • Eligible to participate in Uber's bonus program
  • May be offered an equity award & other types of comp
  • Eligible to participate in a 401(k) plan
  • Eligible for various benefits (details at link)
  • Fulltime
Read More
Arrow Right
New

Eee Parts Failure Engineer

Support flight and development projects as the focal engineer for Electrical, El...
Location
Location
United States , Huntsville
Salary
Salary:
Not provided
amentum.com Logo
Amentum
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Degree in Engineering or related field is required
  • Degree from an ABET accredited university is preferred
  • Typically, educational requirements are the equivalent of a BS with at least 7 years of experience
  • Experience in part specification and selection for all part types listed in MSFC-STD-3012 is desired
  • Experience is required in EEE parts engineering, including parts obsolescence management, part utilization, database maintenance and usage is required
  • Knowledge and experience in using obsolescence analysis tools (software) to provide proactive obsolescence management is required
  • Knowledge of materials science is required
  • Knowledge of electronic components is required
  • Knowledge and experience in failure analysis of avionics with an understanding of the underlying mechanical/electrical causes for component and/or assembly failures is desired
  • Oral and technical writing skills are required
Job Responsibility
Job Responsibility
  • Support flight and development projects as the focal engineer for Electrical, Electronic and Electromechanical parts specification, selection, part utilization, and obsolescence management through the use of NASA and industry standard databases for all part types listed in MSFC-STD-3012
  • Participation in the NASA EEE Parts Community of Practice
  • Failure analysis of avionics systems, assemblies, and components by applying both non-destructive and destructive testing methods to identify root causes of failures
  • Perform continuous parts obsolescence monitoring and notification of project impacts of EEE parts using Silicon Expert, Total Parts Plus, and EPARTS databases
  • Electrical, electronic and electromechanical part selection for NASA programs
  • Maintenance of electrical, electronic and electromechanical part requirements and specifications
  • Support maintenance the obsolescence module of the Electronics Parts Application, Reporting, and Tracking System
  • Perform obsolescence analysis of electrical, electronic and electromechanical parts used throughout the Agency
  • Support development of electrical, electronic and electromechanical part plans, lists, reviews, testing, and analyses
  • Participate in space flight, and development projects, failure analysis of avionics systems, assemblies, and components
What we offer
What we offer
  • Health, dental, and vision insurance
  • Paid time off and holidays
  • Retirement benefits (including 401(k) matching)
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance
  • Wellness programs
  • Fulltime
Read More
Arrow Right
New

Environmental Support & Enforcement Officer

We’re recruiting confident, professional individuals to join our team as Environ...
Location
Location
United Kingdom , Worksop
Salary
Salary:
28000.00 - 32000.00 GBP / Year
jobs.360resourcing.co.uk Logo
360 Resourcing Solutions
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Strong communication skills and a confident, professional manner
  • Resilience and the ability to handle challenging conversations calmly
  • Comfortable working outdoors in all weather conditions
  • Basic IT skills (report writing)
  • Reliable, proactive and detail-focused
  • Ability to work independently and follow procedures
  • A driving licence is preferred but not essential
Job Responsibility
Job Responsibility
  • Starting your day by heading out on foot patrol across busy town centres, high-footfall areas and residential streets
  • Observing public behaviour and identifying offences such as littering, dog fouling and fly-tipping
  • Approaching offenders confidently and professionally to explain the offence and issue Fixed Penalty Notices
  • Educating members of the public on their environmental responsibilities
  • Accurately recording evidence, statements and reports using provided systems
  • Working independently while remaining supported by a wider enforcement team and management
What we offer
What we offer
  • 28 days annual leave (including bank holidays)
  • Pension scheme
  • Full uniform and training provided
  • Overtime opportunities
  • Recognition schemes and progression opportunities
  • Fulltime
Read More
Arrow Right
New

District Support Pharmacist

We're building a world of health around every individual — shaping a more connec...
Location
Location
United States , Wauwatosa
Salary
Salary:
60.00 - 76.00 USD / Hour
https://www.cvshealth.com/ Logo
CVS Health
Expiration Date
June 12, 2026
Flip Icon
Requirements
Requirements
  • Active Pharmacist License in the state where the Store is located
  • Active National Provider Identifier (NPI)
  • Not on the DEA Excluded Parties list
  • Immunization Certification through an accredited organization (i.e. APhA)
  • Free of pending felony charges or convictions for criminal offenses involving controlled substances
  • Ability to travel within a reasonable radius to support market staffing as business needs require
  • Regular and predictable attendance, including nights and weekends
  • Ability to complete required training within designated timeframe
  • Attention and Focus: Ability to concentrate on a task over a period of time
  • Ability to pivot quickly from one task to another to meet patient and business needs
Job Responsibility
Job Responsibility
  • Living our purpose by helping to manage and improve patient health through safe and appropriate dispensing, counseling, and immunizing practices
  • Traveling the district to fill pharmacist shifts as scheduled by the District Performance Coordinator (DPC)
  • overseeing the pharmacy and serving as the Pharmacy Manager's proxy during bench shifts without overlap
  • Supporting safe and accurate prescription fulfillment by following—and directing the pharmacy team to follow—pharmacy workflow procedures and utilizing the safety guardrails at every workstation
  • Assumes Pharmacy Manager's day-to-day duties when serving as the only or the primary pharmacist-on-duty
  • Contributing to positive patient experiences by showing empathy and genuine care and coaching the pharmacy team to do the same: demonstrating compassionate care, collaborating with the patient's total healthcare team, and proactively resolving insurance and/or medication issues
  • Proactively offering and delivering immunizations to keep patients healthy
  • engaging and supporting Pharmacy Technicians to learn to immunize
  • Supporting the effective management of pharmacy inventory in all pharmacies worked by following—and guiding the pharmacy team to follow—all inventory best practices, with a special focus on protecting cold chain products for our patients and our business
  • Remaining flexible for both scheduling and business needs, while contributing to a safe, inclusive, and engaging team dynamic
What we offer
What we offer
  • Medical, dental, and vision coverage
  • Paid time off
  • Retirement savings options
  • Wellness programs
  • Fulltime
Read More
Arrow Right
New

Fuels Handling Equipment (FHE) Mechanic

The FHE Mechanic installs, maintains, repairs, and adjusts pumps, control valves...
Location
Location
United States , Holloman AFB
Salary
Salary:
37.84 USD / Hour
amentum.com Logo
Amentum
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • One year certificate from college or technical school with five (5) years’ experience and/or training
  • or equivalent combination of education and experience
  • Ability to read and interpret documents such as safety rules, operating and maintenance instructions, and procedure manuals
  • Ability to write routine reports and correspondence
  • Ability to speak effectively before groups of customers or employees of organizations
  • Ability to add, subtract, multiply, and divide in all units of measure, using whole numbers, common fractions, and decimals
  • Ability to compute rate, ratio and percent and to draw and interpret bar graphs
  • Ability to solve practical problems and deal with a variety of concrete variables in situations where only limited standardization exists
  • Ability to interpret a variety of concrete variables in situations where only limited standardization exists
  • Ability to interpret a variety of instructions furnished in written, oral, diagram and schedule form
Job Responsibility
Job Responsibility
  • Perform annual preventive maintenance and inspection tasks on the fuel servicing equipment, storage, and dispensing systems
  • Perform regular inspections to identify and correct equipment malfunctions, repairs, and replacements
  • Inspect, diagnose, and perform major and minor repair work on motors, pumps, hydraulic equipment, compressors, controls, valves, and related equipment
  • Applies knowledge of the design, system function, and interrelation of units comprising the system
  • physical properties and hazards associated with the handling of various types of petroleum fuels, chemicals, and alcohol
  • pipefitting skills, mechanical skills
  • Makes periodic inspections of units to detect and correct leakage, corrosion, faulty fittings, and malfunction of mechanical units, meters, and gauges, hoses, fuel bladders, such as fuel hydrants, tank pits, distribution lines, storage tanks, turbines, pumps, and control rooms
  • Inspects electrical wiring, switches, and controls for safe operating condition, grounding, and adjustment
  • Repairs, replaces, and adjusts malfunctioning equipment to restore operating condition specified in regulations and repair manuals
  • Disassembles, adjusts, aligns, and calibrates gauges and meters
What we offer
What we offer
  • Health, dental, and vision insurance
  • Paid time off and holidays
  • Retirement benefits (including 401(k) matching)
  • Educational reimbursement
  • Parental leave
  • Employee stock purchase plan
  • Tax-saving options
  • Disability and life insurance
  • Pet insurance
  • Fulltime
Read More
Arrow Right
New

Retail Merchandiser Team Driver

Do you want to work in a retail environment as part of a team? Are you looking f...
Location
Location
United Kingdom , Liverpool
Salary
Salary:
Not provided
jobs.360resourcing.co.uk Logo
360 Resourcing Solutions
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A full UK driving licence is essential
  • You need to be over 21 years old and been driving for at least two years
  • Knowledge of retailing and experience of planograms and merchandising is useful, but we offer a 13 week training plan to applicants with a great work attitude
Job Responsibility
Job Responsibility
  • Merchandise & replenish shelves using planograms to set timescales
  • Profile shelving, install equipment and implement display to a high standard
  • Clean and maintain equipment and general housekeeping
  • Lifting and manual handling up to 25kg (male) 16kg (female) may be involved
What we offer
What we offer
  • Hired car delivered and collected to and from your home
  • Pre-paid shared (twin room) accommodation with breakfast
  • Uniform/PPE
  • Development opportunities
  • Accrual of holiday pay to be paid out when you are not working
  • Driving to Success Scheme: Drivers who take two, or more passengers in their car can earn an extra 50p an hour per shift
Read More
Arrow Right
New

Qa Testing Specialist (Application Security / Fte / Hybrid)

We are currently seeking a QA Testing Specialist (Application Security / FTE / H...
Location
Location
United States , Jersey City
Salary
Salary:
Not provided
nttdata.com Logo
NTT DATA
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 5+ years in QA testing of Java/JSP-based web applications
  • 5+ years of Strong knowledge of SDLC, STLC, Agile Scrum
  • 5+ years of Hands-on experience in JavaScript/browser debugging (DevTools)
  • 5+ years of Experience with HTTP traffic analysis, payload modification, session/token handling
  • Familiarity with Jira, Xray or similar tools
  • 5+ years of Experience in API testing
  • Understanding of OWASP Top 10 / web security fundamentals
  • Strong analytical, problem-solving, and communication skills
Job Responsibility
Job Responsibility
  • Design and execute test cases for functional & non-functional requirements
  • Perform application security testing and validate vulnerabilities
  • Identify, log, and track defects using Jira/Xray
  • Debug issues using browser developer tools (JS/network analysis)
  • Perform session manipulation/mocking and request/response validation
  • Conduct API testing (Postman/REST tools)
  • Collaborate within Agile Scrum teams (onsite/offshore)
  • Analyze test results and provide actionable feedback
  • Manage test data and contribute to continuous QA improvements
  • Fulltime
Read More
Arrow Right