Interface
Staff Engineer (Backend + AI) : Sphere
Interface, San Francisco, California, United States, 94199
interface.ai is the industry's-leading specialized AI provider for banks and credit unions, serving over 100 financial institutions. The company's integrated AI platform offers a unified banking experience through voice, chat, and employee-assisting solutions, enhanced by cutting-edge proprietary Generative AI.
Our mission is clear: to transform the banking experience so every consumer enjoys hyper-personalized, secure, and seamless interactions, while improving operational efficiencies and driving revenue growth.
interface.ai offers pre-trained, domain-specific AI solutions that are easy to integrate, scale, and manage, both in-branch and online. Combining this with deep industry expertise,interface.ai is the AI solution for banks and credit unions that want to deliver exceptional experiences and stay at the forefront of AI innovation.
About the Role
We are seeking a
Staff Engineer for Sphere , our flagship conversational AI platform that powers the most impactful and widely adopted experiences in our ecosystem. Sphere spans intelligent voice agents and next-generation digital assistants—helping millions of users navigate complex, real-world tasks in regulated environments. As a core engineering leader on this team, you will design, build, and evolve distributed systems and AI pipelines that drive human-like interactions, multimodal memory, and real-time decision-making across speech and chat modalities. This is one of the most
mission-critical, revenue-generating
platforms in our company, directly shaping the future of user-facing AI in financial services. What You’ll Do
Lead architecture and delivery of high-scale, low-latency backend systems supporting multimodal conversational agents (voice and digital)
Build and maintain orchestration logic, memory frameworks, and dynamic routing for real-time, multi-turn AI interactions
Design extensible APIs and interaction models that integrate with tools, transactions, and domain-specific workflows
Collaborate with ML and infrastructure teams to productionize speech models, reasoning systems, and aligned LLM capabilities
Drive improvements in latency, observability, fault-tolerance, and personalization across conversational surfaces
Influence technical strategy, mentor engineers, and uphold engineering excellence across product lines
Ensure compliance, auditability, and security are first-class considerations in all components and designs
What You Bring
Required
8+ years of experience building backend or platform systems at scale, ideally in real-time or user-facing environments
Deep understanding of
asynchronous architecture, distributed systems , and
event-driven orchestration Experience delivering production systems with real-time performance, stateful flows, and strong reliability guarantees
Expertise in one or more backend stacks such as
Node.js, Go, or Python , with emphasis on performance and maintainability
Track record of working across product and infra teams to build secure, extensible, and AI-enabled systems
Strong product instincts and a desire to contribute to platform-level thinking for conversational UX
Preferred
Experience with speech or voice systems, LLM-based agents, or multi-modal interface design
Familiarity with memory frameworks, dialogue management, and inference orchestration at scale
Background in regulated domains or enterprise-grade infrastructure design (security, logging, compliance)
Why This Role Is Unique
You'll work on the
most impactful, revenue-generating AI products
in the company
You’ll help shape
human-AI interaction at scale , across both synchronous voice and digital interfaces
Your work will be foundational to millions of end-user conversations and high-stakes decision-making every day
You’ll collaborate with a team that’s pushing the boundary of AI-first interfaces—moving fast, with technical rigor and user empathy Compensation The base salary range for this role will be between $210,000 and $240,000. Final compensation will be determined by a variety of factors, including, but not limited to your location, skills, experience, education, and/or professional certifications. During the phone screening, your recruiter will provide the location-specific salary range for this role. Regardless of your personal situation or where you are in the world, Interface.ai offers comprehensive and great benefits programs to meet your needs: Health: medical, dental, and vision insurance and wellbeing resources and programs Time away: Public holidays and discretionary PTO package for flexible days off with manager approval Financial: 401K, ESPP, Basic life and AD&D insurance, long-term and short-term disability Family: parental leave, maternity support, fertility services Development: Access to internal professional development resources. Additional: 24/7 access to professional counselors, voluntary insurance coverage, exclusive perks and discount At interface.ai, we are committed to providing an inclusive and welcoming environment for all employees and applicants. We celebrate diversity and believe it is critical to our success as a company. We do not discriminate on the basis of race, color, religion, national origin, age, sex, gender identity, gender expression, sexual orientation, marital status, veteran status, disability status, or any other legally protected status. All employment decisions at Interface.ai are based on business needs, job requirements, and individual qualifications. We strive to create a culture that values and respects each person's unique perspective and contributions. We encourage all qualified individuals to apply for employment opportunities with Interface.ai and are committed to ensuring that our hiring process is inclusive and accessible. Create a Job Alert Interested in building your career at Interface AI? Get future opportunities sent straight to your email. Apply for this job
* indicates a required field First Name * Last Name * Email * Phone Resume/CV Enter manually Accepted file types: pdf, doc, docx, txt, rtf Enter manually Accepted file types: pdf, doc, docx, txt, rtf How many years of experience with architecture and delivery of high-scale, low-latency backend systems supporting multimodal conversational agents (voice and digital) * How many years of experience building backend or platform systems at scale, ideally in real-time or user-facing environments * This position requires onsite work at our San Francisco office. Are you currently located in the Bay area or willing to relocate to the Bay area? * Select... Will you now or in the future require any form of employer sponsorship (i.e., visa/immigration) to continue to work in the country you reside in? * Select... Do you have experience in an early- or growth-stage startup? * Select... LinkedIn Profile * Do you have a degree in Computer Science? Please specify * Voluntary Self-Identification
For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file. As set forth in Interface AI’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law. If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows: A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability. A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service. An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense. An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985. Select... Voluntary Self-Identification of Disability
Form CC-305 Page 1 of 1 OMB Control Number 1250-0005 Expires 04/30/2026 Voluntary Self-Identification of Disability Form CC-305 Page 1 of 1 OMB Control Number 1250-0005 Expires 04/30/2026 Why are you being asked to complete this form?
We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years. Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp . How do you know if you have a disability?
A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability.
Disabilities include, but are not limited to: Alcohol or other substance use disorder (not currently using drugs illegally) Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS Blind or low vision Cancer (past or present) Cardiovascular or heart disease Celiac disease Cerebral palsy Deaf or serious difficulty hearing Diabetes Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders Epilepsy or other seizure disorder Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome Intellectual or developmental disability Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD Missing limbs or partially missing limbs Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS) Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities Partial or complete paralysis (any cause) Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema Short stature (dwarfism) Traumatic brain injury
Disability Status Select... PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.
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We are seeking a
Staff Engineer for Sphere , our flagship conversational AI platform that powers the most impactful and widely adopted experiences in our ecosystem. Sphere spans intelligent voice agents and next-generation digital assistants—helping millions of users navigate complex, real-world tasks in regulated environments. As a core engineering leader on this team, you will design, build, and evolve distributed systems and AI pipelines that drive human-like interactions, multimodal memory, and real-time decision-making across speech and chat modalities. This is one of the most
mission-critical, revenue-generating
platforms in our company, directly shaping the future of user-facing AI in financial services. What You’ll Do
Lead architecture and delivery of high-scale, low-latency backend systems supporting multimodal conversational agents (voice and digital)
Build and maintain orchestration logic, memory frameworks, and dynamic routing for real-time, multi-turn AI interactions
Design extensible APIs and interaction models that integrate with tools, transactions, and domain-specific workflows
Collaborate with ML and infrastructure teams to productionize speech models, reasoning systems, and aligned LLM capabilities
Drive improvements in latency, observability, fault-tolerance, and personalization across conversational surfaces
Influence technical strategy, mentor engineers, and uphold engineering excellence across product lines
Ensure compliance, auditability, and security are first-class considerations in all components and designs
What You Bring
Required
8+ years of experience building backend or platform systems at scale, ideally in real-time or user-facing environments
Deep understanding of
asynchronous architecture, distributed systems , and
event-driven orchestration Experience delivering production systems with real-time performance, stateful flows, and strong reliability guarantees
Expertise in one or more backend stacks such as
Node.js, Go, or Python , with emphasis on performance and maintainability
Track record of working across product and infra teams to build secure, extensible, and AI-enabled systems
Strong product instincts and a desire to contribute to platform-level thinking for conversational UX
Preferred
Experience with speech or voice systems, LLM-based agents, or multi-modal interface design
Familiarity with memory frameworks, dialogue management, and inference orchestration at scale
Background in regulated domains or enterprise-grade infrastructure design (security, logging, compliance)
Why This Role Is Unique
You'll work on the
most impactful, revenue-generating AI products
in the company
You’ll help shape
human-AI interaction at scale , across both synchronous voice and digital interfaces
Your work will be foundational to millions of end-user conversations and high-stakes decision-making every day
You’ll collaborate with a team that’s pushing the boundary of AI-first interfaces—moving fast, with technical rigor and user empathy Compensation The base salary range for this role will be between $210,000 and $240,000. Final compensation will be determined by a variety of factors, including, but not limited to your location, skills, experience, education, and/or professional certifications. During the phone screening, your recruiter will provide the location-specific salary range for this role. Regardless of your personal situation or where you are in the world, Interface.ai offers comprehensive and great benefits programs to meet your needs: Health: medical, dental, and vision insurance and wellbeing resources and programs Time away: Public holidays and discretionary PTO package for flexible days off with manager approval Financial: 401K, ESPP, Basic life and AD&D insurance, long-term and short-term disability Family: parental leave, maternity support, fertility services Development: Access to internal professional development resources. Additional: 24/7 access to professional counselors, voluntary insurance coverage, exclusive perks and discount At interface.ai, we are committed to providing an inclusive and welcoming environment for all employees and applicants. We celebrate diversity and believe it is critical to our success as a company. We do not discriminate on the basis of race, color, religion, national origin, age, sex, gender identity, gender expression, sexual orientation, marital status, veteran status, disability status, or any other legally protected status. All employment decisions at Interface.ai are based on business needs, job requirements, and individual qualifications. We strive to create a culture that values and respects each person's unique perspective and contributions. We encourage all qualified individuals to apply for employment opportunities with Interface.ai and are committed to ensuring that our hiring process is inclusive and accessible. Create a Job Alert Interested in building your career at Interface AI? Get future opportunities sent straight to your email. Apply for this job
* indicates a required field First Name * Last Name * Email * Phone Resume/CV Enter manually Accepted file types: pdf, doc, docx, txt, rtf Enter manually Accepted file types: pdf, doc, docx, txt, rtf How many years of experience with architecture and delivery of high-scale, low-latency backend systems supporting multimodal conversational agents (voice and digital) * How many years of experience building backend or platform systems at scale, ideally in real-time or user-facing environments * This position requires onsite work at our San Francisco office. Are you currently located in the Bay area or willing to relocate to the Bay area? * Select... Will you now or in the future require any form of employer sponsorship (i.e., visa/immigration) to continue to work in the country you reside in? * Select... Do you have experience in an early- or growth-stage startup? * Select... LinkedIn Profile * Do you have a degree in Computer Science? Please specify * Voluntary Self-Identification
For government reporting purposes, we ask candidates to respond to the below self-identification survey.Completion of the form is entirely voluntary. Whatever your decision, it will not be considered in the hiringprocess or thereafter. Any information that you do provide will be recorded and maintained in aconfidential file. As set forth in Interface AI’s Equal Employment Opportunity policy,we do not discriminate on the basis of any protected group status under any applicable law. If you believe you belong to any of the categories of protected veterans listed below, please indicate by making the appropriate selection.As a government contractor subject to the Vietnam Era Veterans Readjustment Assistance Act (VEVRAA), we request this information in order to measurethe effectiveness of the outreach and positive recruitment efforts we undertake pursuant to VEVRAA. Classification of protected categoriesis as follows: A "disabled veteran" is one of the following: a veteran of the U.S. military, ground, naval or air service who is entitled to compensation (or who but for the receipt of military retired pay would be entitled to compensation) under laws administered by the Secretary of Veterans Affairs; or a person who was discharged or released from active duty because of a service-connected disability. A "recently separated veteran" means any veteran during the three-year period beginning on the date of such veteran's discharge or release from active duty in the U.S. military, ground, naval, or air service. An "active duty wartime or campaign badge veteran" means a veteran who served on active duty in the U.S. military, ground, naval or air service during a war, or in a campaign or expedition for which a campaign badge has been authorized under the laws administered by the Department of Defense. An "Armed forces service medal veteran" means a veteran who, while serving on active duty in the U.S. military, ground, naval or air service, participated in a United States military operation for which an Armed Forces service medal was awarded pursuant to Executive Order 12985. Select... Voluntary Self-Identification of Disability
Form CC-305 Page 1 of 1 OMB Control Number 1250-0005 Expires 04/30/2026 Voluntary Self-Identification of Disability Form CC-305 Page 1 of 1 OMB Control Number 1250-0005 Expires 04/30/2026 Why are you being asked to complete this form?
We are a federal contractor or subcontractor. The law requires us to provide equal employment opportunity to qualified people with disabilities. We have a goal of having at least 7% of our workers as people with disabilities. The law says we must measure our progress towards this goal. To do this, we must ask applicants and employees if they have a disability or have ever had one. People can become disabled, so we need to ask this question at least every five years. Completing this form is voluntary, and we hope that you will choose to do so. Your answer is confidential. No one who makes hiring decisions will see it. Your decision to complete the form and your answer will not harm you in any way. If you want to learn more about the law or this form, visit the U.S. Department of Labor’s Office of Federal Contract Compliance Programs (OFCCP) website at www.dol.gov/ofccp . How do you know if you have a disability?
A disability is a condition that substantially limits one or more of your “major life activities.” If you have or have ever had such a condition, you are a person with a disability.
Disabilities include, but are not limited to: Alcohol or other substance use disorder (not currently using drugs illegally) Autoimmune disorder, for example, lupus, fibromyalgia, rheumatoid arthritis, HIV/AIDS Blind or low vision Cancer (past or present) Cardiovascular or heart disease Celiac disease Cerebral palsy Deaf or serious difficulty hearing Diabetes Disfigurement, for example, disfigurement caused by burns, wounds, accidents, or congenital disorders Epilepsy or other seizure disorder Gastrointestinal disorders, for example, Crohn's Disease, irritable bowel syndrome Intellectual or developmental disability Mental health conditions, for example, depression, bipolar disorder, anxiety disorder, schizophrenia, PTSD Missing limbs or partially missing limbs Mobility impairment, benefiting from the use of a wheelchair, scooter, walker, leg brace(s) and/or other supports Nervous system condition, for example, migraine headaches, Parkinson’s disease, multiple sclerosis (MS) Neurodivergence, for example, attention-deficit/hyperactivity disorder (ADHD), autism spectrum disorder, dyslexia, dyspraxia, other learning disabilities Partial or complete paralysis (any cause) Pulmonary or respiratory conditions, for example, tuberculosis, asthma, emphysema Short stature (dwarfism) Traumatic brain injury
Disability Status Select... PUBLIC BURDEN STATEMENT: According to the Paperwork Reduction Act of 1995 no persons are required to respond to a collection of information unless such collection displays a valid OMB control number. This survey should take about 5 minutes to complete.
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