Software Engineer, Fullstack
Software Engineer, Fullstack
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USD 130000 - 500000
1 Vacancy
Job Description
About Mercor
Mercor is training models that predict how well someone will perform on a job better than a human can. We use our platform to source vet and onboard expert contractors who help train AI models in a wide variety of domains. Our technology is so effective its used by all of the top 5 AI labs.
We scaled from $1500M in revenue run rate in the last 17 months making us the fastest growing company in the world. Our growth is accelerating: 11% week-over-week in July 18% in August and 19% in September. The team is small profitable and growing as fast as we can hire exceptional people.
About the Role
As a Senior Software Engineer at Mercor youll take end-to-end ownership of complex projects that power the workflows of the worlds leading AI companies. Youll architect and scale distributed systems mentor other engineers and set technical direction for high-impact initiatives. This role goes beyond coding: youll help shape engineering culture influence product decisions and ensure our systems scale in lockstep with our hyper-growth.
At the end of the process youll be team-matched to where you can have the most impact on one of the following:
Talent platform side building next-generation tools that automate recruiting end-to-end intelligently match candidates to roles and power global hiring with seamless contracts and payments.
Applied AI/human data side partnering with top AI researchers from the AI labs like OpenAI Anthropic and Google to create post training datasets to improve foundational model capabilities.
What Youll Do
Design build and scale production-grade backend APIs services and infrastructure.
Take ownership of system design and architecture decisions that impact core workflows.
Mentor and support junior engineers through code reviews pair programming and design discussions.
Partner with Product and Design to deliver features quickly without sacrificing quality or scalability.
Anticipate technical bottlenecks propose solutions and drive initiatives that increase reliability.
Contribute to the systems that enable OpenAI Anthropic Google and others to train and evaluate their models.
What Were Looking For
Strong coding fundamentals in Python (our primary backend) though interviews are language-agnostic.
Deep understanding of distributed systems scalability challenges and system design.
Experience shipping production systems at scale in high-growth or high-stakes environments.
Ability to reason about trade-offs and make decisions balancing speed and reliability.
Strong communication skills with an ability to align technical and business goals.
Bias toward ownership curiosity and delivering simple solutions to complex problems.
Why Mercor
Impact: Your work powers how the worlds leading AI labs train and test their models.
Learning: Get early insights into frontier model capabilities months before the market.
Growth: Work on both infrastructure and research-adjacent projects with fast paths to ownership.
Benefits
Generous equity grant vested over 4 years
A $20K relocation bonus (if moving to the Bay Area)
A $10K housing bonus (if you live within 0.5 miles of our office)
A $1K monthly stipend for meals
Free Equinox membership
Health insurance
Employment Type
Full-Time
