Jobs in the United States

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Added 1 min ago
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Associate DevSecOps Engineer, Platform and Tooling
AbbVie
Remote, United States
- $84,500 to $162,000 USD / year
Join our Information Security team as an Associate DevSecOps Engineer and be part of the core team building a global enterprise-grade Application Security program from the ground up. You…
Added 3 mins ago
Azure Kubernetes Service (AKS) Engineer
RTX
Remote, United States
The Azure Kubernetes Service (AKS) Engineer is responsible for designing, implementing, and supporting containerized application platforms within the enterprise Azure cloud environment.…
Added 3 mins ago
Principal Software Systems Quality Engineer Marlborough, MA
RTX
United States
Our team in Marlborough, MA, has an immediate need for an onsite Principal Software Systems Quality Engineer (Quality Assurance/Compliance) to support Land & Air Defense Systems (LADS) to…
Added 5 mins ago
Analytical Engineer
USAA Life Insurance Company
United States
Strong knowledge of data architecture and integration patterns, including ELT/ETL pipelines, structured and semi-structured data, APIs, and event- or batch-based processing.
Added 6 mins ago
Azure Engineer
Vamonos IT
Ashburn, VA
Vamonos IT is seeking an experienced Azure Engineer to design, implement, administer, and support enterprise Microsoft Azure cloud solutions, virtual desktop environments, and Microsoft 365…
Added 7 mins ago
BGS F/A-18 Sustainment Chief Program Engineer (CPE)
The Boeing Company
Hazelwood, MO
…excellence for the F/A-18 Sustainment activities and supporting systems. The CPE is a key member of the F/A-18 BGS Program Leadership Team and is accountable to the BGS F/A-18 Program…
Added 7 mins ago
Quality Systems Engineer - Millennium Space Systems
Millennium Space Systems
El Segundo, CA
Millennium Space Systems, a Boeing Company, is seeking a Quality Systems Engineer to develop, lead, and continuously improve our Quality Management System (QMS) across satellite production…
Added 7 mins ago
Quality Engineer (Build Reliability Engineer) 2nd Shift - Millennium Space Systems
Millennium Space Systems
El Segundo, CA
Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satellite company focused on national security space. Our missions have direct impact to…
Added 7 mins ago
Staff Software Engineer, Data Governance & Trust
Sony Interactive Entertainment (SIE)
San Mateo, CA
Sony Interactive Entertainment is seeking a Staff Software Engineer to help shape and deliver the technical foundation for Data Governance and Trust across our data and AI ecosystem.
Added 7 mins ago
Senior Mechanical Engineer
True Talent Solutions Partners
Austin, TX
Join an equipment engineering team designing and deploying custom manufacturing systems for advanced optical components. This hands-on role combines precision mechanical engineering,…
Added 11 mins ago
Principal Embedded Software Engineer
CORP-Corporate Office
United States
Northrop Grumman Mission Systems is looking for a Principal Embedded Software Engineer with the desire to learn new technologies and develop software for cutting edge Undersea Payloads. The…
Added 11 mins ago
2027 Associate Electrical RF Engineer - Plymouth MN
DS - Armament Systems
United States
At Northrop Grumman, our employees have incredible opportunities to work on revolutionary systems that impact people's lives around the world today, and for generations to come. Our…
Added 11 mins ago
Senior Principal Embedded Software Engineer
CORP-Corporate Office
United States
Northrop Grumman Mission Systems is looking for a Senior Principal Embedded Software Engineer with the desire to learn new technologies and develop software for cutting edge Undersea…
Added 11 mins ago
Sr. Principal Structural Design Engineer
CORP-Corporate Office
United States
As a Structural Design Engineer, you will lead the preliminary, conceptual, and detailed design of spacecraft components, subsystems, and systems. Your responsibilities will include…
Added 11 mins ago
Systems Engineer Level 3 / 4
CORP-Corporate Office
United States
Northrop Grumman is seeking a Systems Engineer Level 3 / 4 to join our team based out of Cape Canaveral, FL. The Marine Systems organization, part of Northrop Grumman Mission Systems, is…
Added 11 mins ago
Optical Subsystem I&T Engineer - Level 1
SP - Launch Vehicles
United States
Northrop Grumman Space Systems is looking for an Associate Optical Subsystem I&T Engineer – 1 to support the Electro-Optics (EO) Group within the Launch Vehicles business unit in Chandler,…
Added 12 mins ago
Head of Microgrid Controls
BoxPower
Remote, United States
You will work closely with the Applications Engineer (who owns broad design and analysis work) and the Senior Field Commissioning Engineer (who owns physical-plant commissioning), with the…
Added 15 mins ago
Zero Trust ICAM Engineer
Booz Allen Hamilton_United States
Fayetteville, NC
As an ICAM Engineer within the Department of War, you'll craft solutions that strengthen national defense and safeguard mission-critical assets while championing a zero-trust strategy.…
Added 16 mins ago
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Data Center Infrastructure Engineer
Foxconn Industrial Internet - FII
San Jose, CA
- $103,000 to $125,000 USD / year
Foxconn is seeking a highly skilled and motivated Data Center Infrastructure Engineer to join our dynamic team. The ideal candidate will be responsible for the design, maintenance, and…
Added 20 mins ago
Executive Director of Institutional Research
System Administration
United States
Nevada's workforce data landscape, including statewide labor market projections, and K-12 education data systems and their integration with higher education
Added 20 mins ago
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PageWide Web Press Workflow Solutions Engineer
HP
Corvallis
- $130,700 to $205,200 USD / year
The Workflow Solutions Engineer is responsible for the design, integration, validation, and lifecycle support of end‑to‑end production workflows for HP PageWide Web Press solutions. This…
Added 23 mins ago
Lead Software Engineer - Consumer Community Banking
JPMC page
New York, NY · NY · Plano, TX
Title: Lead Software Engineer, Consumer & Community Banking, Travel
Added 24 mins ago
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Embedded Software Engineer
Emerson
Shakopee, MN
- $110,000 to $150,000 USD / year
…technologies and solutions that safeguard industries and keep critical systems…
Added 24 mins ago
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Embedded Software Test Engineer
Emerson
Shakopee, MN
- $94,000 to $134,000 USD / year
If you enjoy software, automation, and understanding how complex systems really behave, this is an opportunity to help build the test capabilities behind our next generation of products and…
Added 24 mins ago
Senior Software Engineer - Agency Compensation
Travelers Indemnity Co
Hartford, CT
Travelers is seeking a Senior Software Engineer to join our team as we grow and transform our technology landscape. In this role, you will lead advanced, end-to-end software engineering…

Patronus AI, Inc.

Expert: Interactive Coding, Payments Processing (Contract, Remote)

Remote, United States

Remote

$150 USD / hour

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Job details

Pay: $150 USD / hour
Workplace: Remote
Working hours: 10 hours per week
Posting language: English
Posted: Nov 3, 2026

Original job description

About Patronus AI

Patronus AI is a frontier lab developing simulation research and infrastructure to accelerate progress toward human-aligned AGI. We are on a mission to simulate all of the world’s intelligence.

We are the team behind some of the earliest and most influential research in AI evaluation like FinanceBench, Lynx, SimpleSafetyTests, CopyrightCatcher, Humanity’s Last Exam, and more. We are formerly AI researchers and engineers from companies like Meta AI, Amazon AGI, and Google. Our customers include foundation model labs and Fortune 500 enterprises like Adobe. We are backed by top-tier investors like Lightspeed Venture Partners, Notable Capital, Stanford University, Noam Brown, Gokul Rajaram, and more.

At a glance

Engagement: Independent contractor, fully remote. Live screen-share sessions with our researchers plus short asynchronous write-ups.
Pay: $150 per hour. The trial session is paid.
Commitment: About 10 hours per week, 1 to 3 months to start, with extension for strong performers.
Start: Rolling
Location: Remote, any country, with a few hours of overlap with US or EU working hours.

The role

You'll work live with our research team on coding scenarios in a sandboxed payments codebase: authorization, capture and refund flows, idempotency and retries, webhook handling, reconciliation and settlement, ledger entries, chargebacks and disputes, and 3DS/SCA. You implement or review the change the way you would at work, explain your reasoning as you go, tell us where the scenario doesn't match how money actually moves, and help define what correct looks like.

Each session starts from a scenario we provide. You work through it on a shared screen, land the change or the review, and then write a short note on how you approached it. Your work becomes evaluation and training data for frontier models.

You don't need an AI background. You do need to be the kind of engineer who thinks about the duplicate webhook before the happy path, and who knows which rounding rule the ledger expects.

Areas we're hiring for

Each area is defined by the part of the money-movement path you own, so you should fit exactly one. If you work across two, apply under the one where you spend most of your time.

Payment processing and gateway integration. Engineers who build the checkout and money-movement path: authorization, capture, refund and void flows against a processor or acquirer such as Stripe, Adyen or Braintree, idempotency keys, retries, webhooks and 3DS/SCA. Typical titles: Payments Engineer, Backend Engineer (Payments), Integration Engineer, Checkout Engineer.
Ledger, settlement and reconciliation. Engineers who own the books behind the payments: double-entry ledgers, settlement files, payout schedules, reconciliation against processor and bank reports, currency handling and rounding. Typical titles: Ledger Engineer, Fintech Backend Engineer, Treasury Systems Engineer, Reconciliation Engineer.
Disputes, risk and compliance engineering. Engineers who build chargeback and dispute workflows, fraud and risk rules, card-data handling under PCI DSS, and the audit trails behind them. Typical titles: Risk Engineer, Fraud Platform Engineer, Disputes Engineer, Payments Compliance Engineer.

What you'll do

Implement and review payment flows live with a researcher in a sandboxed codebase: authorization, capture and refund paths, idempotent retries, webhook handlers, ledger entries, reconciliation jobs and dispute handling.
Explain your reasoning as you work, including the edge cases you check first.
Review scenarios we have drafted for realism and difficulty, and flag the failure modes that bite real payments teams: double charges, partial captures, currency rounding, race conditions, and stale or replayed webhooks.
Help write the acceptance criteria for each scenario, including the tempting wrong moves.
Write short notes after each session on how you approached the problem and what you verified.
Work in reviewer feedback within agreed turnaround times, and flag guideline gaps or edge cases you run into.

Who we're looking for

Required

3+ years writing production code for a payment processor, a processor integration, a card issuer or acquirer, a fintech ledger or a bank's payments platform, including work within the last two years. You wrote the code yourself; managing the team is not enough.
Working command of the money-movement lifecycle end to end: authorization, capture, settlement, reconciliation and disputes, and the compliance edges such as PCI DSS and SCA.
Comfortable in at least one of Python, Go, Java or TypeScript, and at reading unfamiliar codebases.
Able to explain your reasoning out loud while you work, in clear professional English.
Reliable availability for scheduled live sessions and the habit of showing the evidence behind every conclusion.

Nice to have

Experience with several processors or rails, such as Stripe, Adyen, card networks, ACH, SEPA or UPI.
Experience writing technical design documents, incident reviews or interview questions for payments systems.
Familiarity with how AI coding agents fail on payments work.

Our standards

All solutions, write-ups and reviews are your own work. LLM-generated code or text is not permitted.
Scenarios and solutions must be original. Nothing may be copied from published or easily searchable sources.
Never include code, configuration or transaction data from a current or former employer or client, or anything covered by an NDA. All companies, systems and scenarios are fictional, and all work is your own.
Quality is judged on correctness, clarity of reasoning and reviewer agreement, not on speed or volume.

How hiring works

Short AI interview and resume review
One paid trial session, scored against a fixed quality checklist
Onboarding and your first project

Patronus AI is an equal opportunity employer. We celebrate diversity in our workplace, and all qualified applicants will receive consideration for employment without regard to age, ancestry, color, family or medical care leave, gender identity or expression, genetic information, marital status, medical condition, national origin, physical or mental disability, political affiliation, protected veteran status, race, religion, sex (including pregnancy), sexual orientation, or other legally protected characteristics.

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More about this job

Skills

Research
Regulatory compliance
Python
Go
Oracle Java
TypeScript
Onboarding

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