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Head of Security
Tonic AI
Remote, United States
- Run vulnerability management across our code, dependencies, and infrastructure, including pen tests and remediation tracking.
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Quality Lead
Hatch
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VG
Intern: Environment & Sustainability (Spring 2027)
Volvo Group
Dublin, VA
- $17 to $46 USD / hour
Transport is at the core of modern society. Imagine using your expertise to shape sustainable transport and infrastructure solutions for the future. If you seek to make a difference on a…
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Principal Security Engineer- Cyber Defense
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Greensboro, NC
- $128,300 to $158,400 USD / year
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Sr. Product Owner I- Operations Tech.
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Glenshaw, PA
Experience with Grid Edge Intelligence solutions (metering technology, systems, and infrastructure)
Added 1 min ago
Sr. Mgr, Facilities
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Springfield, OH · Eaton, OH
…coordinates facilities engineering, maintenance, construction, infrastructure, utilities, and capital improvement activities to ensure safe, reliable, compliant, and cost-effective…
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Systems Engineer Principal
SAIC
Fort Belvoir, VA
…primarily focused on Mission Ground Terminals and supporting infrastructure - from broad, strategic issues (e.g. policies, concept of operations, etc.) to tactical concerns (e.g., near-term…
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Systems Engineer
SAIC
San Diego, CA
Support enterprise IT, cybersecurity, infrastructure modernization, and automation initiatives.
Added 1 min ago
BC
Civil Project Manager
Bowman Consulting Group, Ltd.
Ashburn, VA
- $115,615 to $147,409 USD / year
Added 1 min ago
ECAD Application Engineer, Amazon Leo
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…back on track, creating a proposal and documents for future infrastructure needs to support scalability for the team and tools, automating processes to streamline development, and…
Added 1 min ago
Launch & Integration Manager, re:Cycle Reverse Logistics
re:Cycle Reverse Logistics LLC
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- Experience in data centers, infrastructure service providers, or related technology companies
Added 1 min ago
Engineering Operations Technician
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Umatilla, OR
Join our dynamic team and become a critical guardian of technological infrastructure! As a Data Center Engineering Technician, you'll play a pivotal role in maintaining the heartbeat of…
Added 1 min ago
Engineering Operation Technician
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Mesa, AZ
Join our dynamic team and become a critical guardian of technological infrastructure! As a Data Center Engineering Technician, you'll play a pivotal role in maintaining the heartbeat of…
Added 1 min ago
Engineering Operation Technician
Amazon Data Services, Inc.
Mesa, AZ
Join our dynamic team and become a critical guardian of technological infrastructure! As a Data Center Engineering Technician, you'll play a pivotal role in maintaining the heartbeat of…
Added 1 min ago
Engineering Operation Technician, PHX65 DCEO
Amazon Data Services, Inc.
Mesa, AZ
Join our dynamic team and become a critical guardian of technological infrastructure! As a Data Center Engineering Technician, you'll play a pivotal role in maintaining the heartbeat of…
Added 1 min ago
Solution Architect
Stellantis
Auburn Hills, MI
…components and any other needed components (front end, back end, infrastructure, data pipelines, new or refined neural network models, data,…
Added 1 min ago
MI
Civil Design Tech I
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- $24.9 to $34.24 USD / hour
…design teams on water resources, restoration, hydropower, and infrastructure projects throughout North…
Added 2 mins ago
GIS Solution Engineer - Transportation
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Charlotte, NC
Experience incorporating real-time information streams with existing GIS data and IT infrastructure
Added 2 mins ago
GIS Solution Engineer - Transportation
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Experience incorporating real-time information streams with existing GIS data and IT infrastructure
Added 2 mins ago
Associate Consultant
TD SYNNEX Corporation
Remote, United States
Evaluate emerging trends across artificial intelligence, cloud, cybersecurity, infrastructure, data, automation, and digital transformation.
Added 3 mins ago
Manager, Site Reliability Engineering
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…Engineering, Application Engineering, Security, Architecture and Infrastructure…
Added 3 mins ago
Power BI Analyst
Insight Recruitment
Knoxville, TN
Exposure to Microsoft Azure, cloud-based data platforms, or BI infrastructure transitions.
Added 4 mins ago
V
Senior Software Engineer - Platforms
Versant
New York, NY
- $110,000 to $160,000 USD / year
Familiarity with DevOps practices and infrastructure-as-code.
Added 4 mins ago
WS
Senior Manager, Supply Chain Management- Recommerce Enablement
Wal-Mart Stores East, LP
Bentonville, AR
- $90,000 to $180,000 USD / year
You build and lead the enablement infrastructure that allows Recommerce to scale.
Added 5 mins ago
Cyber Systems Exploitation Researcher
MIT Lincoln Laboratory
Lexington, MA

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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