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

Food & Beverage Supervisor - Ramsay's Kitchen

Location
Location
United States , St. Louis
Salary
Salary:
Not provided
fourseasons.com Logo
Four Seasons
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • 1-3 years F&B experience, hotel/resort preferred
  • Must have attention to detail and the ability to work outside in spring, summer and fall months
  • A positive attitude is required
  • Day and night shifts required and flexibility to work any day of the week including weekends and holidays
  • Must have the ability to stand/walk up to 8 hours per shift
  • Outgoing personality and can-do approach to any request
Job Responsibility
Job Responsibility
  • Supervise the consistency of quality and efficiency of food and service in all outlets
  • Utilize all computer systems relevant to the departments
  • Execute the tasks of a pool attendant, server, and/or bartender as needed
  • Schedule staff and complete payroll records in accordance with budgeted guidelines
  • Order supplies and other amenities to ensure the restaurant or outlet par levels are adequate for smooth operations
  • Participate in regular staff meetings to keep employees informed of hotel policies and changes as well as ways to increase sales and service
  • Knowledge of all food and beverage items offered, including ingredients, methods of preparation, and proper service
What we offer
What we offer
  • Medical, Dental, Vision and 401K with employer matching all starting at 30 days
  • Time off plans starting at day of hire
  • Opportunity to be a part of a cohesive team in an inclusive work environment
  • Complimentary and discounted hotel stays around the world
  • Wellbeing and mental health initiatives
  • Embracement and promotion of diversity in our workplace
  • Complimentary employee meals and beverages
  • Tuition reimbursement
  • Fulltime
Read More
Arrow Right
New

Pps Manager Ii Business Development

Because this role involves a combination of independent and collaborative work, ...
Location
Location
United States , Endicott
Salary
Salary:
133333.00 - 226667.00 USD / Year
baesystems.com Logo
Baesystems
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Experience in a regional sales role within the heavy-duty commercial vehicle or similar industries (transit experience is a distinct advantage)
  • Ability to converse in a professional manner in both written and verbal communication, up to and including Board Level
  • Motivated self-starter with capabilities to work with minimum supervision within a fast-paced, team-oriented environment
  • Proficient with Microsoft Office, CRM and preferably Salesforce
  • Post-secondary education in business or engineering, or an equivalent combination of education and experience in the transit industry
Job Responsibility
Job Responsibility
  • Achieve quarterly and annual sales targets of our family of electric drive solutions
  • Develop deep and trusted relationships with both vehicle operators and vehicle manufacturers through regular face-to-face interaction
  • Act as a consultant with the customer to develop best value technical and commercial specifications for vehicles
  • Conduct product demonstrations, presentations and interviews to identify specific product solutions and customer needs
  • Apply critical thinking skills while professionally representing the company and independently driving towards common business sales objectives
  • Be recognized as a respected industry expert in markets of interest, representing the company as a member of industry associations and attending conferences and tradeshows
  • Support our bid team, customer program managers, and our aftermarket team to deliver winning products and services to our customers
  • Provides input and ideas into the Marketing & Sales Support team on product positioning, features and benefits
What we offer
What we offer
  • health, dental, and vision insurance
  • health savings accounts
  • a 401(k) savings plan
  • disability coverage
  • life and accident insurance
  • employee assistance program
  • legal plan
  • discounts on things like home, auto, and pet insurance
  • paid time off
  • paid holidays
  • Fulltime
Read More
Arrow Right
New

Category Buyer

Category Buyer- NHS Supply Chain - Food. Location: Chertsey / Normanton / Cheste...
Location
Location
United Kingdom , Chertsey
Salary
Salary:
37800.00 GBP / Year
14forty.co.uk Logo
14forty
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Experience managing or supporting category procurement in a public sector or regulated environment
  • Strong understanding of public procurement regulations and compliant sourcing processes
  • Experience leading procurement frameworks and tender activity
  • Confident stakeholder management and communication skills, with the ability to work cross‑functionally
  • Commercial awareness and the ability to build market insight and supplier knowledge
  • A proactive, organised approach, with the ability to manage multiple priorities in a fast‑paced environment
  • Strong analytical skills and attention to detail
Job Responsibility
Job Responsibility
  • Manage the full end‑to‑end procurement lifecycle for your category on behalf of NHS Supply Chain: Food
  • Lead and deliver the NHS Supply Chain: Food Procurement Framework, from strategy development and tendering through to launch and ongoing supplier relationship management
  • Develop and implement category strategies that optimise buying power, drive savings and deliver long-term value
  • Build strong relationships with suppliers, ensuring effective engagement, performance management and continuous improvement
  • Work collaboratively with stakeholders across Foodbuy, Trusts and the wider Compass organisation
  • Conduct market and industry analysis to build insight, support negotiations and inform category strategy
  • Operate all procurement activity in line with the Public Contracts Regulations 2015 and the Procurement Act 2023
  • Support delivery of team targets and KPIs to ensure value and savings are delivered for the NHS
What we offer
What we offer
  • clearly defined career pathways
  • learning and development programmes
  • progression opportunities
  • Fulltime
Read More
Arrow Right
New

营销总经理/vp

We are a premier healthcare complex incubated by a leading publicly listed corpo...
Location
Location
China , 苏州市
Salary
Salary:
1200000.00 - 1800000.00 CNY / Year
https://www.randstad.com Logo
Randstad
Expiration Date
July 25, 2026
Flip Icon
Requirements
Requirements
  • Must hold a Bachelor's degree or higher in Clinical Medicine (Full-time/Unified Recruitment)
  • Proven track record in comprehensive management or marketing leadership within large-scale medical complexes or high-end private hospitals
  • Deeply seasoned in the premium healthcare sector with a sophisticated understanding of the psychological drivers and service expectations of HNWIs
  • Exceptional brand operation capabilities, keen market intuition, and extensive experience in coordinating large-scale marketing initiatives
  • Strong leadership presence with the ability to drive team performance and navigate complex stakeholder environments under high pressure
Job Responsibility
Job Responsibility
  • Lead the brand positioning and commercial marketing strategies for the complex to secure a dominant position in the premium market
  • Drive the achievement of aggressive KPIs by diversifying acquisition channels and optimizing outpatient volume, inpatient occupancy, and overall revenue
  • Curate and maintain an elite brand image, ensuring every touchpoint—from clinical service to hospitality—reflects Ultra-High-End standards
  • Bridge the gap between clinical excellence and operational marketing, ensuring that service delivery matches brand promises to enhance the patient journey
  • Establish and scale strategic partnerships with high-end commercial insurers, corporate key accounts, and high-net-worth individual (HNWI) communities
  • Fulltime
Read More
Arrow Right
New

Operations Manager

We’re building a world of health around every individual — shaping a more connec...
Location
Location
United States , Windham
Salary
Salary:
20.00 - 34.00 USD / Hour
https://www.cvshealth.com/ Logo
CVS Health
Expiration Date
July 08, 2026
Flip Icon
Requirements
Requirements
  • Deductive reasoning ability, advanced analytical skills and computer skills
  • Advanced communication skills, leadership, supervision, and influencing skill
  • Ability to work a full-time flexible schedule, including some early morning, overnight and weekend shifts, to work overtime as needed, and to respond to urgent issues at the store when they arise
Job Responsibility
Job Responsibility
  • Lead others and work effectively with store crews
  • Supervise, assign and direct activities of the store's crew
  • Effectively communicate information to store crew and supervisors in an open and timely manner
  • Support Store Manager with actions plans for operational and service improvement
  • Assist customers with their questions, problems and complaints
  • Promote CVS customer service culture (greet, offer help, and thank)
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

Associate Customer Service Representative Everyday Banking

Wells Fargo is seeking an Associate Customer Service Representative in Everyday ...
Location
Location
United States , Roanoke
Salary
Salary:
Not provided
https://www.wellsfargo.com/ Logo
Wells Fargo
Expiration Date
May 31, 2026
Flip Icon
Requirements
Requirements
  • 6+ months of Customer Service, Financial Services or Contact Center support experience, or equivalent demonstrated through one or a combination of the following: work experience, training, military experience, education
Job Responsibility
Job Responsibility
  • Support customers and seek ways to improve inquiries or issues from customers with empathy regarding financial products and services through a variety of channels such as phone, text, chat, video chat and other lines of communication in a fast-paced, high-volume environment
  • Perform routine tasks such as answering inquiries, resolving problems and providing a best-in-class customer experience while adhering to work guidelines, policies, and regulations and navigating multiple computer systems
  • Regularly receive direction from supervisor and escalate questions and issues to more senior employees
  • Interact with team on basic information, plus internal or external customers
  • Fulltime
Read More
Arrow Right