Product: AI Process Platform combining software and human expertise for model training, data annotation, and operations
Reported 2024 revenue: $134 million
Company Overview
Problem Domain
AI model development, data annotation, and AI operations
Founded
2015
Industry
Artificial intelligence / AI services
Funding Track Record
Multiple venture rounds (4 rounds reported)
Crunchbase reports 4 funding rounds; reporting indicates a ~ $100M late round referenced in coverage and >$120M total raised as of 2025 summaries.
Investor Signal
“Backed by multiple venture and growth investors including Vanara Capital and Freestyle Capital (Crunchbase lists 27 investors)”
Founders
What we do
Join the Team
Principal Software Engineer - Backend
On-SiteBR
On-Site • BR
About Invisible
Invisible Technologies is the AI training and scaling partner for the leading foundation model providers, enterprises, and governments, bridging the gap between AI potential and production. Invisible’s unique AI Process Platform combines elite global human expertise, cutting edge technology, and deep institutional knowledge gained by training 80% of the world’s leading AI models. Trusted by AWS, Microsoft, and Cohere, we have an unparalleled ability to operationalize AI for real-world applications. Our explosive growth landed us the #2 spot on the Inc. 5000 in 2024, closing the year on $134m revenue.
About The Role
We are seeking a highly experienced Principal Software Engineer to join our dynamic engineering team. The ideal candidate will possess over 20 years of extensive low-level Linux systems expertise and at least 10 years of robust Python programming experience. The Principal Software Engineer will be responsible for designing, developing, and maintaining sophisticated workflow systems, managing execution isolation through containerization, creating and optimizing runtime environments, and developing and integrating APIs. Additionally, the candidate should demonstrate exceptional skills in memory management, complex debugging, modular system architecture, and event-driven architectures.
What You’ll Do
What We Need
At least 10 years of professional experience with Python programming
Deep expertise in container technologies (Docker, Kubernetes)
Demonstrated mastery of workflow systems, event-driven architectures, and API development (e.g., GraphQL subscriptions)
Extensive experience in memory management, debugging complex systems, and creating runtime environments
Nice to have
Bachelor's degree in Computer Science, Engineering, or equivalent experience
Experience leading engineering teams or projects
Familiarity with continuous integration and continuous deployment (CI/CD) pipelines
Certifications relevant to Linux, containerization, and cloud technologies
What’s In It For You
Invisible is committed to fair and competitive pay, ensuring that compensation reflects both market conditions and the value each team member brings. Our salary structure accounts for regional differences in cost of living while maintaining internal equity.
For this position, the annual salary ranges by location are:
Tier 1
$88,000 - $104,000 USD
An Invisible Talent Acquisition Partner can provide more information on which locations are included in each of our geographic pay tiers during the interview process. For candidates outside the U.S., compensation will be adjusted to reflect local market conditions and cost-of-living differentials.
Bonuses and equity are included in offers above entry level. Final compensation is determined by a combination of factors, including location, job-related experience, skills, knowledge, internal pay equity, and overall market conditions. Because of this, every offer is unique. Additional details on total compensation and benefits will be discussed during the hiring process.
What It's Like To Work At Invisible
At Invisible, we’re not just redefining work—we’re reinventing it. We operate at the intersection of advanced AI and human ingenuity, pushing the boundaries of what’s possible to unlock productivity and scale. Ownership is at the core of everything we do. Here, you won’t just execute tasks—you’ll build, innovate, and shape the future alongside world-class clients pushing the boundaries of AI.
We expect bold ideas, relentless drive, and the ability to turn ambiguity into opportunity. The pace is fast, the challenges are big, and the growth is unmatched. We’re not for everyone, and we’re okay with that. If you’re looking for predictable routines, this isn’t the place for you. But if you’re driven to create, thrive in dynamic environments, and want a front-row seat to the AI revolution, you’ll fit right in.
Country Hiring Guidelines
*Invisible is a remote-first organization and hires new team members in countries around the world. Although many of our roles are fully remote, some roles may carry specific location-based eligibility requirements. Our Talent Acquisition team can help answer any questions about location after starting the recruiting process.
*
Teeming tracks opportunities at over 24,000 AI startups, then works with you to find (and land) the one you'll love.
Product Designer
InternshipTel Aviv
Internship • Tel Aviv
DevOps Engineer
InternshipMunich, DE
Internship • Munich, DE
AI Researcher
ContractUtrecht, NL
Contract • Utrecht, NL
Backend Developer
Part-timeNiš, RS
Part-time • Niš, RS
Data Scientist
Part-timeSan Francisco, US
Part-time • San Francisco, US
Machine Learning Engineer
Part-timeCambridge, GB
Part-time • Cambridge, GB
Design, implement, and maintain sophisticated workflow and event-driven systems
Develop isolated execution environments using containers (Docker, Kubernetes)
Create and optimize runtime environments for performance and reliability
Architect, implement, and maintain modular systems and robust APIs (e.g., GraphQL subscriptions)
Conduct complex debugging sessions and resolve challenging system-level issues
Optimize memory management strategies to enhance system efficiency
Utilize Autogen 0.4 extensively to automate and streamline engineering processes
Design and implement enterprise software systems with an emphasis on security, operations, observability, and identity management
Ensure rigorous security standards and compliance with enterprise security policies
Integrate robust observability tools (logging, metrics, tracing) to enhance monitoring and troubleshooting capabilities
Implement identity management solutions, including authentication, authorization, and access control
Provide mentorship and technical leadership to junior engineers
Collaborate closely with cross-functional teams, including product management and operations
Establish and promote engineering best practices and coding standards
Expected to participate in an on-call rotation to handle potential incidents
Solid understanding and experience with modular software architecture
Experience designing and managing enterprise software systems focused on security, operations, observability, and identity
Experience with cloud platforms (AWS, Azure, GCP)
Extensive proficiency with version control systems, particularly Git
Strong ability to document designs, specifications, and implementation details
Excellent communication skills, capable of clearly conveying complex technical concepts to technical and non-technical stakeholders
Strong understanding of security best practices in systems engineering
Exceptional analytical and problem-solving abilities
Strong organizational and leadership skills
Excellent interpersonal skills, including collaboration, negotiation, and conflict resolution
Self-motivated, proactive, and capable of driving projects independently
Profound understanding and practical experience with Autogen 0.4
A desire to develop the most consequential AI software system of the future!
AI Interviewing Guidelines
Our hiring team thoughtfully uses AI to support an efficient, engaging, and inclusive interview process. Since AI can also be a helpful tool for candidates, we've outlined expectations for using it ethically throughout your interview journey.
Click here to learn more about how we use AI and our guidelines for candidates.
Accessibility Statement
We’re committed to providing reasonable accommodations for individuals with disabilities. If you need assistance or accommodation due to a disability, please contact our Talent Acquisition team during the recruitment process at
accommodation@invisible.email
.
Equal Opportunity Statement
We’re an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, or veteran status, or any other basis protected by law.
Due to a high volume of candidates, Invisible may use automated decision-maker technologies to filter candidates based on response to our application questions and other provided information. Our use of automated decision-making enables us to be efficient by providing a manageable list of possible candidates that meet our mandatory hiring criteria. If you object to our use of automated decision-making please contact us.
