Senior Software Engineer - Backend
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Before you apply
LocationSF, NYC, Austin, Boston, Chicago, London, Toronto, San Francisco, United States
Work moderemote
Typefull-time
SenioritySenior
Experience7+ yrs
DepartmentEngineering
EquityIncluded
Company size11–50 people
PostedDec 12, 2025 · 10mo ago
Verified live3d ago
May no longer be actively hiring
Posted by the company on Dec 12, 2025
At a glanceSummarised by Seekless from the posting.
Bachelor's Degree in Computer Science, Computer Engineering, or related field
7+ years of professional software engineering experience using modern object-oriented or functional languages
Experience building applications on cloud computing platforms (AWS, Azure, GCP) using container technologies such as Docker and Kubernetes
Expert proficiency in SQL
Ability to own and manage concurrent initiatives, demonstrating effective judgment in prioritization and time management
Driven, self-managed, capable of conceiving and implementing solutions on your own and with a team
A strong desire to continuously improve and learn new technologies in a fast-paced environment
Excellent analytical and problem-solving skills, effective communication, attention to detail, and high-quality work
Strong technical documentation ability to support the development process
Effective communication and collaboration with designers, developers, and product managers
Ability and interest in mentoring junior and mid-level engineers to foster their growth and development
Experience with Elasticsearch or similar search and analytics engines
Experience with various database architectures including relational (PostgreSQL) and others
Experience managing and maintaining production infrastructure
Experience building platform capabilities for internal teams
Experience in fraud detection, identity verification, or security-adjacent domains
Skills
Python
JavaScript
React
AWS
Azure
GCP
Docker
Kubernetes
SQL
Elasticsearch
PostgreSQL
Benefits
Health insurance
Equity
About Tofu
How do you distinguish between real and fake in an AI world?
This question has crippled the recruiting industry overnight. Tofu is building one of the most important companies of our time and the layer to fix it.
AI has made it easier than ever to fake credentials, impersonate real people, and apply to jobs at scale using synthetic identities. More than 60% of remote applicants are fake, there were 75M detected deepfakes last year, and the number of state-sponsored groups hired by Fortune 500s grew 220%.
The hiring funnel has become the front door to the enterprise, and AI has cracked it wide open. It’s a $96 billion problem that needs to be solved.
We’re changing that.
Tofu is building a new standard for security in hiring.
And we just raised $5M from Slow Ventures and Founder Collective to step on the gas.
If you want to help build the trust layer for the internet and redefine how identity works in the AI era, we’d love to talk.
About the Role
We’re hiring a Senior Backend Engineer to join our core engineering team. You’ll be a key contributor to both user-facing product launches as well as platform enhancements and stability – working directly on the systems that power Tofu’s fraud detection, deepfake analysis, and identity verification infrastructure.
What You’ll Do
•
Develop core product features to support Tofu’s fraud detection pipelines, data processing, and retrieval at scale.
•
Design and implement backend APIs to facilitate data interactions between Tofu’s detection models, scoring systems, and product surfaces.
•
Build and maintain data pipelines for efficient processing, analytics, and real-time fraud signal ingestion.
•
Collaborate with frontend engineers (React/JavaScript) to present fraud and identity data in a clear, actionable format for enterprise recruiting teams.
What You’ll Bring
•
Ability to own and manage concurrent initiatives, demonstrating effective judgment in prioritization and time management.
•
Driven, self-managed, capable of conceiving and implementing solutions on your own and with a team.
•
A strong desire to continuously improve and learn new technologies in a fast-paced environment.
•
Excellent analytical and problem-solving skills, effective communication, attention to detail, and high-quality work.
•
Strong technical documentation ability to support the development process.
•
Effective communication and collaboration with designers, developers, and product managers.
•
Ability and interest in mentoring junior and mid-level engineers to foster their growth and development.
Required Experience
•
Bachelor’s Degree in Computer Science, Computer Engineering, or related field.
•
7+ years of professional software engineering experience using modern object-oriented or functional languages – we primarily work in Python and JavaScript.
•
Experience building applications on cloud computing platforms (AWS, Azure, GCP) using container technologies such as Docker and Kubernetes.
•
Expert proficiency in SQL.
Preferred Experience
•
Experience with Elasticsearch or similar search and analytics engines.
•
Experience with various database architectures including relational (PostgreSQL) and others.
•
Experience managing and maintaining production infrastructure.
•
Experience building platform capabilities for internal teams.
•
Experience in fraud detection, identity verification, or security-adjacent domains.
Why Tofu and this Role
•
You’ll help build the trust layer for the internet – one of the defining problems of the AI era.
•
You will join a team obsessed with building a generational company.
•
Early engineers have real ownership, real impact, and unlimited growth.
Benefits & Perks
•
Competitive salary + meaningful equity.
•
Comprehensive health benefits.
•
3 weeks of vacation.
•
New laptop and gear to do your best work.
•
Tofu swag your friends will want to steal.
Working Location
•
This role is fully remote.
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