Jobs in the United States

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Added 1 min ago
Validation and Verification Engineer, Aviation Engineering
Skyryse
El Segundo, CA · Los Angeles, CA
VALIDATION & VERIFICATION ENGINEER, AVIATION ENGINEERING - EL SEGUNDO, CA
Added 8 mins ago
AI Engineer 4 (AI Foundations: World Model, RL, Causal Inference, Sequential Data)
Capital One
McLean, VA · Cambridge, MA · San Jose, CA · NY
Define and maintain service-level objectives (SLOs) for AI reliability, including latency, uptime, and model performance drift
Added 8 mins ago
Director, Full-Stack Engineer - AML (Anti Money Laundering)
Capital One
NY · McLean, VA · Cambridge, MA
As a Director, Full-stack Engineer at Capital One, you will lead high-performing engineering teams working to define the future of banking in the cloud. You will partner closely with…
Added 8 mins ago
Senior Automated Test Systems Engineer (Onsite)
RTX
United States
Create and release engineering documentation to support test system development and deployment.
Added 9 mins ago
PT
Facilities Project Engineer
PDS Tech Commercial
Morris Plains, NJ
- $50 to $60 USD / hour
PDS Tech Commercial is seeking an experienced Facilities Project Engineer to lead critical clean room, equipment, and facility upgrade projects for a global leader in pharmaceutical…
Added 9 mins ago
DevSecOps Security Engineer
Leidos
Egg Harbor Township, NJ
Leidos is seeking a DevSecOps Security Engineer to join the Air Traffic Business Area within the Homeland Sector, supporting the development of the Leidos Common Automation Platform…
Added 9 mins ago
ER
Senior Network Engineer II
EVEREST REINSURANCE COMPANY
Warren, NJ
- $119,000 to $140,000 USD / year
…You'll drive network modernization initiatives, serve as a Level 3 escalation point for critical incidents, and help shape the strategic evolution of our global network…
Added 10 mins ago
Software Quality Engineer I
St. Jude Medical, Cardiology Division, I
CA
The Software Quality Engineer I provides design quality engineering support for the development and maintenance of mobile medical device software applications and connected digital health…
Added 10 mins ago
Help Desk Engineer I
SAIC
Princeton, NJ
Answer Help Desk requests at a Tier I Level, providing adequate triage and follow-up.
Added 10 mins ago
Senior Lead Software Engineer - Security Platforms
JPMorgan Chase
Jersey City, NJ
As a Senior Lead Software Engineer at JPMorganChase within Consumer & Community Banking, you are an integral part of an agile team that works to enhance, build, and deliver trusted…
Added 11 mins ago
Mechanical Engineer, Data Center Operations Engineering
Meta
Trenton, NJ
Meta is seeking a Mechanical Engineer to join our Data Center Operations Engineering team. Our data centers are the foundation upon which our rapidly growing infrastructure efficiently…
Added 12 mins ago
Sales Engineer - Veterinary Software
IDEXX Distribution, Inc. dba ICS
United States
As a Sales Engineer within our IDEXX Veterinary Software PIMS portfolio, you will provide the deep product and technical credibility that Veterinary Software Sales Professionals cannot…
Added 19 mins ago
Sr. Equipment Safety Engineer
SpaceX
Bastrop, TX
Hands-on experience with risk assessment, guarding and interlock design review, LOTO interfaces, and safety-related control system evaluation (including performance level or SIL concepts)
Added 21 mins ago
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Manufacturing Engineer
Actalent
San Diego, CA
- $100,000 to $120,000 USD / year
Job Title: Manufacturing EngineerJob DescriptionThe Manufacturing Engineer is responsible for overseeing the planning, development, implementation, and maintenance of manufacturing methods,…
Added 21 mins ago
OW
Forward Deployed Product Manager (SF/NY)
Ode with Anthropic
San Francisco, CA · San Jose, CA · New York City, NY
- $200,000 to $275,000 USD / year
…run evals, and help hill-climb on quality. You make product-level technical calls yourself and act as a thought partner to the lead engineer on architecture, weighing short-term velocity…
Added 24 mins ago
Manufacturing Engineer, Machining & Additive Associate (Winter 2027)
Astranis
San Francisco, CA
Astranis builds advanced satellites for high orbits, expanding humanity’s reach into the solar system. Today Astranis satellites provide dedicated, secure networks to highly-sophisticated…
Added 34 mins ago
Mechanical Designer for SEM
ASML US, LP. (US31)
San Jose, CA
The mission of Electron Optics Design Engineer position is to design EO system/submodules for the state of the art e-Beam inspection/Metrology tool. As an Electron Optics Design Engineer,…
Added 38 mins ago
Sales Engineer - Veterinary Software
IDEXX
Portland, ME
As a Sales Engineer within our IDEXX Veterinary Software PIMS portfolio, you will provide the deep product and technical credibility that Veterinary Software Sales Professionals cannot…
Added 42 mins ago
Project Engineer II- Project Manager
SEL Engineering Services, Inc.
FL
1. Possesses, understands and applies knowledge and experience of power system focus area* and related SEL products to complete complex assignments.
Added 43 mins ago
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Senior Software Engineer, Stablecoin Payments
Flex
Remote, United States
- $170,000 to $280,000 USD / year
We’re re-architecting the entire financial system for entrepreneurs - from the first dollar a business earns to how that value compounds, moves, and is ultimately spent in real life.…
Added 50 mins ago
Cyber Security Systems Engineer / Contract to hire / Onsite / Carrollton, TX
Kelly Services
Carrolton, TX
Translate customer cybersecurity needs into system and component-level specifications using the standard V-Model
Added 50 mins ago
Supplier Quality Engineer- Component Introduction - Autonomous Mobility
AUMOVIO
New Braunfels, TX
Knowledge of Quality Management (including standards of Quality system requirements, policies and norms Risk Management
Added 51 mins ago
SoC Design Verification Engineer
Global Foundries
Richardson, TX
GlobalFoundries is seeking a Staff SoC Design Verification Engineer to verify custom System-on-Chip designs. Working with design and verification engineers across multiple disciplines, the…
Added 51 mins ago
Field Engineer (THAAD - CLS
Akima
El Paso, TX
The successful candidate will function as a Field Engineer with the Terminal High Altitude Area Defense (THAAD) Missile Defense System out of Fort Bliss, Texas. The candidate will perform…
Added 52 mins ago
Relay Test Engineer
ABM Industries
Irving, TX
Interprets project-level scope of work and effectively plans commissioning and resource scheduling and provides team leadership for completing test activities efficiently, on time and…

Flex

Senior Software Engineer, Stablecoin Payments

Remote, United States

$170,000 to $280,000 USD / year

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Job details

Pay: $170,000 to $280,000 USD / year
Experience: 5+ years of backend software engineering experience
Posting language: English
Posted: Nov 6, 2026

Original job description

Flex is building AI-native financial services for business owners.

We’re re-architecting the entire financial system for entrepreneurs - from the first dollar a business earns to how that value compounds, moves, and is ultimately spent in real life. Banking, credit, payments, personal finance, and financial operations - rebuilt from the ground up as a single, intelligent system. Flex is the full financial home for ambitious owners.

Since launching publicly in September 2023, Flex has scaled from zero to nine-figure annualized revenue, with a clear path to profitability by late 2026. We move fast, ship relentlessly, and operate with extreme ownership.

Our customers are affluent business owners ($3–$200M in revenue) - the backbone of the economy and one of the most underserved segments in finance. They’re stuck with outdated banks and fragmented tools. We’re replacing all of it. The opportunity is massive: a ~$1T+ revenue market hiding in plain sight. Our ambition is to build a $100B+ company by delivering a product that is fundamentally better - not incrementally improved.

Flex has raised $100M+ in equity and $300M+ in debt.

Mission-critical problems: We build software that directly controls how money moves at scale.
High bar, low ego: Small teams, exceptional people, real ownership.
Speed over comfort: We prioritize execution, quality, clarity, and results.
Enduring impact: What we’re building will define how a generation of owners runs their businesses.

Team & Locations

We hire exceptional people who want to build hard things and see their work matter immediately. Roles are available in: San Francisco, Miami, New York, and fully remote.

Flex Fuels Ambition. About the Role

Flex is building stablecoin products for business owners, and we need engineers who can ship them. The team is small and moving fast, and you’ll be one of the first engineers to join. You’ll build the services that move customer money on-chain and connect them to the banking systems Flex already runs. That means real ownership, direct access to the engineering lead and product, and work that customers use.

Crypto experience helps, but it isn’t required. Much of the work is strong fintech engineering: payments, onboarding, compliance, and reliability. If you’ve built that kind of system and want to learn the crypto side, we want to talk.

What You'll Do

Design, build, and run backend services for stablecoin payments, including deposits, withdrawals, and on and off ramps
Integrate with partners for wallets, virtual accounts, and stablecoin orchestration
Build business onboarding (KYB) and compliance flows that stand up to banking audits
Connect new stablecoin products to Flex’s existing banking, ledger, and payments systems
Own your work from design through launch and production support
Work closely with product, design, compliance, and business development
Help set technical direction of the team’s roadmap
Onboard and mentor new teammates

Requirements

5+ years of backend software engineering experience
Experience building and running production services in fintech, payments, or banking
Experience with compliance-driven systems such as KYB, KYC, AML, or audit requirements, and comfort working with compliance stakeholders
Strong system design skills, especially for money movement: accuracy, reliability, and handling failures safely
Proficiency in a modern backend language
Comfortable owning problems end to end in a small, fast-moving team
Clear communicator with technical and non-technical partners

Nice to Haves

Hands-on crypto experience: stablecoins, wallets, custody, on-chain transactions, etc.
Experience with on and off ramps, virtual accounts, or stablecoin orchestration
Smart contract development or auditing experience
Prior experience at a startup or high-growth company

Why Join Us

Build something generational - Capture the full lifecycle of money for ambitious business owners.

Work on real money, real risk - Payments, credit, and banking at serious scale.

Solve hard problems - AI, underwriting, compliance, and global finance from first principles.

True ownership - Small teams, high trust, real accountability.

Founder-level exposure - Direct access to leadership, customers, and investors.

High bar, high taste - Move fast without cutting corners.

Elite peers - People here are builders, not tourists.

Real upside - Meaningful equity if you help build something big.

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