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WA
Legal Engineer
WFB Ashurst Perkins Coie US LLP
Seattle, WA · Portland, OR · Anchorage, AK · Phoenix, AZ · Denver, CO · Dallas, TX · Boise, ID · Bellevue, WA · Austin, TX · Houston, TX · Chicago, IL · Washington, DC
- $138,450 to $249,360 USD / year
…asset. We're looking for a collaborative, detail-oriented Legal Engineer to join our team and help deliver an exceptional employee…
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Quality Engineering Intern
DWYER INSTRUMENTS, LLC
San Marcos, CA
- $22 to $30 USD / hour
Support ISO 9001 audits: Receive training on ISO 9001 requirements and assist with internal audits alongside the Quality Engineer, including evidence collection, documentation review, and…
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Maintenance Worker / Engineer
Jacksonville, FL
…the day. Candidates who can work independently and deliver quality results are highly encouraged to…
Added 1 min ago
CW- Manufacturing Engineer I - (E1)
Applied Materials
Austin, TX · Austin
As a Manufacturing Engineer, you are responsible for developing and maintaining methods, operating sequences, and processes in the fabrication of parts, components, subassemblies, and final…
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Reliability Manager
West Fraser
Dudley, GA
…adversely affect plant operations. These problems include capacity, quality, cost or regulatory compliance issues. To fulfill this responsibility, the reliability engineer…
Added 2 mins ago
Mechanical Engineer
General Dynamics Mission Systems, Inc
Scottsdale, AZ
As a mechanical engineer for Land and Air Systems, you’ll be a member or lead of a cross functional team responsible for the design and development of Navigation, Communicaitons and Control…
Added 3 mins ago
Manufacturing Engineer
Actalent
Warren, MA
Manufacturing Engineer Supporting Navy Programs!!
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A
Signal Processing Software Engineer
Actalent
Moorestown, NJ
- $43 to $70 USD / hour
…system reliability, and adherence to established lifecycle and quality standards such as CMMI Level 5. The schedule offers flexibility, including options such as a 9/80 schedule with every…
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Design Engineer
Actalent
Glendale, CA
Improve product performance, quality, and manufacturability.
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Sr. Robotics Engineer, kuka, ABB, and Fanuc, Biopharma (JP16096)
3 Key Consulting
New Albany, OH
Job Title: Sr. Robotics Engineer, kuka, ABB, and Fanuc, Biopharma (JP16096)
Added 3 mins ago
Tooling Design Engineer
Actalent
Jacksonville, FL
Job DescriptionThe Tooling Design Engineer leads cross-functional teams to design and deliver optical tooling and mold inserts that consistently produce lenses meeting stringent design…
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Design Engineer
Actalent
Farmington Hills, MI
Job Title: Design EngineerJob DescriptionThis hands-on Design Engineer role supports a technical engineering, test, and build environment focused on developing equipment and hardware used…
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A
Controls Engineer
Actalent
Wixom, MI
- $40 to $48 USD / hour
Job Title: Controls EngineerJob DescriptionThis contract Controls Engineer position supports a critical integration project based out of a shop in Wixom, MI, with eventual installation work…
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Systems Engineer
Actalent
Richardson, TX
- $55 to $75 USD / hour
Job Title: Systems EngineerJob DescriptionThis Systems Engineer position offers the opportunity to work on cutting-edge aerospace projects and support the full lifecycle of system…
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Quality Engineer
BorgWarner Thermal Systems Inc
Cadillac, MI
The Quality Engineer collaborates in the development and implementation of quality control methodologies to ensure compliance with quality assurance standards, guidelines, and procedures in…
Added 4 mins ago
V
Transportation Planning Manager
VHB
Charlotte, NC
- $125,000 to $180,000 USD / year
Guide technical teams in delivering high-quality work on-time and within budget, providing expert-level QA/QC across a broad portfolio of traffic engineering work.
Added 4 mins ago
SI
Software Engineering LMTS/PMTS
Salesforce, Inc.
CA · WA
- $172,500 to $344,700 USD / year
As a Lead Engineer on this team, you'll be working with multiple teams across the platform to design, develop, and deliver solutions that define the publishing experience for Salesforce's…
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Systems Engineer
Salesforce, Inc.
TX · IN
We are hiring for the position of Systems Engineer, Procure To Pay. As a member of the Digital Enterprise Technology Systems Engineering team, the Systems Engineer will specialize in…
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Software Engineer-1
Coinbase
Remote, United States
Support the team's engineering quality through code reviews, architectural best practices, and contributing to patterns that raise the technical bar.
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Engineer, Software - Lead I
Quest Diagnostics
Secaucus, NJ
Work as part of a small agile team to design and implement new features and technologies. Deliver high-quality, high-performance code in an agile environment. Use, evaluate, and learn…
Added 4 mins ago
Engineer, Software II
Quest Diagnostics
Secaucus, NJ
Working as part of a small, agile team to design and implement new features and technologies. Delivering high-quality, high-performance code in an agile environment. Using, evaluating, and…
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Software Architect
PDI Technologies
Remote, United States
This role is ideal for an experienced architect, technical lead, or senior engineer who still loves to build and wants meaningful influence over both architecture and execution.
Added 5 mins ago
Civil/Structural Engineer, BIM & Fabrication
Naimor Inc
Snohomish, WA
Ensure interoperability and quality control between different modeling and documentation platforms.
Added 7 mins ago
Senior Software Development Engineer
CVS Health
Des Moines, IA
The Senior Engineer will be responsible for delivering high-quality web applications, interactive dashboards, and backend integration services through collaboration with our engineering,…
Added 7 mins ago
Director Integrated Grid Operations
SMUD
Sacramento, CA
…agencies, and policymakers to make sound, timely, and high-quality…

Mercor

Software Engineer, Applied AI - Systems

San Francisco, CA, United States

$220,000 to $500,000 USD / year

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Job details

Pay: $220,000 to $500,000 USD / year
Experience: 2–5 years of professional backend engineering experience building and operating production systems.
Posting language: English
Posted: Nov 9, 2026

Original job description

ABOUT MERCOR

Mercor's mission is to organize human intelligence to power the AI economy. We're a leading AI data company, building the layer between human expertise and frontier models. Millions of domain experts on the platform are paid over $4 million per day to train frontier AI models. Mercor's APEX benchmark family measures AI's real-world impact on professional work. Mercor Enterprise brings this same infrastructure to Fortune 500 companies: helping companies capture how their best people actually work, translating that expertise directly back into agents.

Mercor is creating a new category of work where expertise powers AI advancement. Achieving this requires an ambitious, fast-paced and deeply committed team. You’ll work alongside researchers, operators, and AI companies at the forefront of shaping the systems that are redefining society. Mercor is a profitable Series C company valued at $10 billion. We work in-person five days a week in our San Francisco, NYC, or London offices.

ABOUT THE ROLE

The Applied AI org builds the systems that turn human expertise into training data for frontier models, task pipelines, expert workflows, evaluation infrastructure, and the services that tie them together. We have synthetic pipelines and modular quality control systems that run in unison to generate highest quality tasks and at scale. All of it runs on backend systems that have to stay correct, fast, and observable while the volume behind them grows every month.

As a Software Engineer on Backend Systems, you'll own services in that stack: designing the data models, building the APIs, services, data pipelines that move work through the platform. This is a build role. You'll take a problem that's roughly scoped, make the design calls, ship it to production, and own it afterward.

We're hiring for depth in backend fundamentals rather than any particular domain. If you've built and operated real services, handled the schema migration that couldn't take downtime, found the query that fell over at 10x traffic, designed the retry logic that made a flaky dependency invisible to users, or build a system that recover when things break that's the experience that matters here. You'll work with a talent dense group of engineers who will review your designs and push your thinking, and you'll be expected to grow into owning larger surfaces quickly.

WHAT YOU WILL DO

Design, build, and operate backend services in the Applied AI stack including APIs, data models, background jobs, and the pipelines that connect them.
Own features end to end: scope the problem, write the design, ship the code, instrument it, and keep it healthy in production.
Build and tune high-throughput data and job pipelines: queuing, batching, idempotency, retries, and backpressure.
Make the system fast and reliable by adding failure recovery in pipelines, profile hot spots, Agent token and cost attribution, caching issues, and set latency, error, cost budgets you actually hold to.
Instrument what you ship: observability, metrics, logging, tracing, and alerts that proactively catch problems.
Work on modern cutting edge tools, libraries and frameworks.
Manage and launch 10s of 1000s of containers, sandbox environments, manage resource allocation and system health.
Manage infrastructure as code using Terraform.
Participate in on-call for the systems you own, debug production incidents, and write up what you learn in RCCA.
Write clear design docs and give useful code review, we make technical decisions in writing and expect everyone to take part.
Work directly with product, operations, and research partners to turn ambiguous requirements into systems that ship.

WHAT WE ARE LOOKING FOR

2–5 years of professional backend engineering experience building and operating production systems.
Strong fundamentals in backend engineering: data structures, algorithms, concurrency, and writing code that's clear enough for the next person to change.
Hands-on experience with API design - REST, gRPC, or GraphQL, and an understanding of versioning, contracts, and backward compatibility.
Solid database skills: relational data modeling, indexing, query performance, transactions and isolation, and safe migrations. Familiarity with at least one NoSQL or key-value store and when it's the right choice.
Practical experience with distributed systems basics: queues and event streams, caching, idempotency, rate limiting, and designing for partial failure.
Experience with Data Orchestration and workflow management systems like Airflow, Temporal, Dagster.
Be able to roll your sleeves up and dig deeper into the lower level infrastructure issues container, permissions, logs, traces and find the needle in the haystack.
Experience running services in production: containers, CI/CD, monitoring and alerting, and debugging issues under real traffic.
Comfort with ambiguity you can take a loosely defined problem, ask the right questions, and come back with a plan.
Genuine excitement for agentic development and new technology, fluency with modern AI dev tools (e.g. Claude Code, Cursor, Copilot), and a real passion for writing good code.
Clear written and verbal communication. High ownership, pragmatism, and a bias toward shipping.

NICE TO HAVE

Experience building or integrating with LLM-backed services in production (evaluation, orchestration, or serving).
Familiarity with AI infrastructure providers like Modal, Fireworks, Baseten, Temporal

BENEFITS

Bi-annual performance bonus structure
Generous equity grant vested over 4 years
Up to $15k Relocation bonus
$10K housing bonus (if you live within 0.5 miles of our office)
$1.5K monthly stipend for meals
Free Equinox membership
$200 monthly laundry reimbursement
$200 monthly personal wellness reimbursement
Health, Dental, Vision insurance

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More about this job

Skills

Quality control systems
Data models
Plan resource allocation
Monitor infrastructure
IBM Terraform
Research
API development
GraphQL
Data modelling
NoSQL
Workflow
Apache Airflow
CI/CD
Debugging
Communication skills

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