Jobs in the United States

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Added 2 mins ago
Enterprise Account Executive US West (Remote US West)
n8n
Remote, United States
n8n is the open workflow orchestration platform built for the new era of AI. We give technical teams the freedom of code with the speed of no-code, so they can automate faster, smarter, and…
Added 2 mins ago
Enterprise Account Executive US Central (Remote US Central)
n8n
Remote, United States
n8n is the open workflow orchestration platform built for the new era of AI. We give technical teams the freedom of code with the speed of no-code, so they can automate faster, smarter, and…
Added 2 mins ago
AP
Rotational Engineer, Central Technology
ACTIVISION PUBLISHING, INC.
United States
- $30.53 to $56.48 USD / hour
Have a code sample? Share your portfolio link or Github
Added 2 mins ago
WD
Staff Content Security Engineer
Walt Disney Pictures
Glendale, CA
- $141,900 to $170,000 USD / year
This Engineer will be part of a strong technical consulting team of seasoned Engineers. This role is best suited for someone who is a curious and driven professional, excited to grow in the…
Added 3 mins ago
Principal Ruby on Rails Engineer
Fifth Third Bank, National Association
United States
Work with SRE's to design and implement our backend infrastructure using Terraform
Added 5 mins ago
Staff+ Software Engineer, Backend
Anthropic
San Francisco, CA · New York City, NY
Enterprise Foundations: We're looking for a software engineer to join our Enterprise Foundations team - the team that makes Claude enterprise-ready at scale. When a Fortune 500 company…
Added 6 mins ago
Data Engineer Intern
Firework
San Mateo, CA
We are seeking a motivated and curious Data Engineer Intern to join our engineering team and gain hands-on experience building and maintaining data infrastructure. In this role, you will…
Added 6 mins ago
Principal Software Engineer, Platform (DevEx)
ServiceTitan, Inc.
Remote, United States
…(last 6–12 months) hands-on work building coding-agent-runtime infrastructure - agent orchestration, harnesses, or LLM reasoning loops. This is a hard filter: process automation or…
Added 6 mins ago
Staff Software Engineer, Platform (DevEx)
ServiceTitan, Inc.
Remote, United States
Partner with the Principal Engineer/EM to turn multi-quarter strategy into sequenced, shippable slices of infrastructure.
Added 7 mins ago
PC
Civil Engineer 3 - Surface Water Management
Pierce County
Pierce County, WA
- $56.62 to $72.07 USD / hour
…community by collaboratively planning and investing in our people, infrastructure, systems, and policies. PPW’s team has more than 800 members that collaborate, innovate and inspire in…
Added 7 mins ago
B
Systems Security Engineer
Blacksmith
New York City, NY
- $225,000 to $300,000 USD / year
- The ability to write and debug production code in Go, Rust, C, C++ or similar, and automate security changes through configuration management and infrastructure as code.
Added 7 mins ago
B
IT Operations Engineer
Blacksmith
New York City, NY
- $150,000 to $170,000 USD / year
- You've managed identity or other IT systems through infrastructure as code.
Added 9 mins ago
Software Engineer, Jade - AI Financial Partner
Chime Financial, Inc
San Francisco, CA
…understand and manage their money. We’re looking for a software engineer who enjoys building reliable systems, solving practical problems, and learning new…
Added 10 mins ago
Site Reliability Engineer 2 - Production Engineering
Anduril Industries
Seattle, WA
Hands-on experience with cloud platforms (AWS, Azure, or GCP) and infrastructure as code practices, preferably Terraform
Added 10 mins ago
Site Reliability Engineer 2 - Production Engineering
Anduril Industries
Costa Mesa, CA · Seattle, WA
Hands-on experience with cloud platforms (AWS, Azure, or GCP) and infrastructure as code practices, preferably Terraform
Added 18 mins ago
Software Engineer III-ServiceNow
JPMC page
San Francisco, CA
As a Software Engineer III at JPMorganChase within the Infrastructure Platform ServiceNow IT Service Management , you serve as a seasoned member of an agile team to design and deliver…
Added 18 mins ago
EU
Lead AI Engineer
Experis USA
Charlotte, NC
- $75 to $85 USD / hour
Our client, an innovative technology organization, is seeking a Lead AI Engineer to join their team. As a Lead AI Engineer, you will be part of the AI Engineering group supporting the…
Added 20 mins ago
WD
Mgr, Software Engineering
Walt Disney Attractions Technology LLC
Celebration, FL
- $165,900 to $222,400 USD / year
This role sits in the DCL Strategic Growth, Infrastructure, and Tech Operations organization.
Added 22 mins ago
O
Junior DevSecOps Engineer (Python, CI/CD)
OpenDataJobs
Washington, DC
- $80,000 to $95,000 USD / year
Contribute to the Terraform or CloudFormation code that defines infrastructure.
Added 22 mins ago
O
DevSecOps Engineer (Kubernetes, CI/CD)
OpenDataJobs
Washington, DC
- $120,000 to $140,000 USD / year
Capture that infrastructure in code, using Terraform or CloudFormation.
Added 22 mins ago
Mission Systems Manager
Singularity Defense Corp.
Gardena, CA
…of its time to technical work, including writing production code, designing software architectures, debugging complex systems, and supporting integration and…
Added 22 mins ago
Director of Flight Software
Singularity Defense Corp.
Gardena, CA
…team also develops and maintains hardware-in-the-loop (HIL) infrastructure supporting software development, integration, and…
Added 34 mins ago
TT
Lead Platform Engineer
True Talent Solutions Partners
San Francisco, CA
- $220,000 to $300,000 USD / year
Lead platform engineering for a data infrastructure company, building the foundational systems that turn diverse scientific data into a reliable, queryable knowledge base. You will set…
Added 35 mins ago
Resident Engineer/Project Manager
WSP
Vancouver, WA · Portland, OR
WSP is seeking a dynamic Resident Engineer/Project Manager for our Vancouver, WA office. Other locations include Portland, OR. Shape the future of transportation infrastructure in the…
Added 37 mins ago
Software Engineer
Compeer Financial
Mankato, MN · Bloomington, IL · Sun Prairie, WI
Strengthens Engineering Quality and Team Effectiveness by actively shaping technical design discussions, code reviews, automated testing, deployment readiness, incident response, root-cause…

Affirm

Senior Software Engineer, Backend (AI Platform)

Remote, United States

$195,000 to $255,000 USD / year

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Job details

Pay: $195,000 to $255,000 USD / year
Experience: You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin.
Posting language: English
Posted: Oct 30, 2026

Original job description

At Affirm, we exist for the moments that matter - giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.

Affirm's engineering team is building a large-scale, fault-tolerant, and global infrastructure that is shared across multiple financial products, merchants, and vendors. Ensuring that our infrastructure is transparently available to all engineers is critical to the success of the business. We pride ourselves on our culture across engineering of writing blameless postmortems as well as writing detailed tech specs and gathering feedback before large changes to systems.

The AI Platform team owns Affirm's paved path for building, running, evaluating, and governing AI systems. Our customers are not only Affirm users, but also every engineer and a growing set of production workloads at Affirm. As a team, we are responsible for building and exposing simple, governed interfaces to models, tools, and agents, with identity, cost attribution, reliability, and security built in. Examples of components we own include the LLM Gateway that fronts every approved model (Claude, ChatGPT, and open-weight models across AWS Bedrock and other providers), the MCP Gateway that mediates and audits tool calls, the Agent Runtime that gives agentic workloads bounded execution, and the evals and observability layer that tells teams whether an AI change is better, cheaper, or safe to ship. We are early: the gateway is in daily use across engineering, the first production agent is live, and the next year takes us from developer productivity to production inference and agents.

What You'll Do

Plan, execute, and own technical decisions and projects within the AI Platform team, from design through launch and on-call.
Design and build the gateway, runtime, and evaluation services that take AI workloads at Affirm from pilot to production, securely scaling across millions of users and their transactions.
Make AI spend attributable and governable: build the identity, quota, routing, caching, and failover controls that let teams adopt new models and tools without re-solving the same platform problems.
Partner with security, infrastructure, and product engineering teams to set the guardrails for agentic workloads and the on-behalf-of identity model for tool access.
Create and monitor metrics for your team's systems, and own the operational health of what you ship: monitoring, alerting, runbooks, and on-call.
Set and improve code review and design standards, and advocate for them beyond your team through writing and tech talks.
Use AI tools and agentic workflows every day as a multiplier for your own code, design review, and operations, and push the team on what a small AI-native team can deliver.
Educate, mentor, and grow engineers in the team, and drive best practices around design, coding, and testing.

What We Look For

You have 4+ years of experience designing, developing and launching backend systems at scale using languages like Python or Kotlin.
You have a track record of developing highly available distributed systems using technologies like AWS, MySQL and Kubernetes.
You have practical experience building with LLMs, agents, or AI frameworks in production: inference APIs, LLM gateways (LiteLLM or similar), MCP, tool calling, evals, or agent runtimes.
You understand AI usage and the infrastructure needed to support and leverage AI workloads across different disciplines.
You have experience defining a technical plan for the delivery of a significant feature or system component with an elegant, simple and extensible design. You write high quality code that is easily understood and used by others.
You are proficient at making significant changes in a large code base, and have developed a suite of tools and practices that enable you and your team to do so safely.
Your experience demonstrates that you take ownership of your growth, proactively seeking feedback from your team, your manager, and your stakeholders.
You have strong verbal and written communication skills that support effective collaboration with our global engineering team.
This position requires either equivalent practical experience or a Bachelor’s degree in a related field.

Pay Grade - N Equity Grade - 9

Employees new to Affirm typically come in at the start of the pay range. Affirm focuses on providing a simple and transparent pay structure which is based on a variety of factors, including location, experience and job-related skills.

Base pay is part of a total compensation package that may include equity rewards, monthly stipends for health, wellness and tech spending, and benefits (including 100% subsidized medical coverage, dental and vision for you and your dependents.)

USA base pay range (CA, WA, NY, NJ, CT) per year: $195,000 - 255,000

USA base pay range (all other U.S. states) per year: $173,000-233,000

Remote-first with flexibility built in Affirm is proud to be a remote-first company. Most roles can be done from almost anywhere within the country of employment. Some positions may occasionally require in-person work at an Affirm office, and a few are office-based due to the nature of the work. All new hires will be invited to attend an in-person onboarding experience.

Benefits designed for you Our benefits reflect our commitment to care, transparency, and flexibility. Here are a few highlights:

Health coverage at no cost: We cover 100% of premiums for employees and their dependents.
Spending stipends: Monthly stipends support your tech setup, and the ability to choose health and wellness options that are right for you.
Time off to recharge: Flexible time off and generous holiday calendars help you rest when you need to.
Own a piece of what you build: Our employee stock purchase plan (ESPP) lets you buy Affirm stock at a discount.

We’re committed to providing an inclusive interview process, including accommodations for candidates with disabilities. If you need support, we’re happy to help.

For positions based in San Francisco or Los Angeles: Affirm considers qualified applicants with arrest and conviction records, as required by law.

By clicking "Submit Application," you acknowledge that you have read Affirm's Global Candidate Privacy Notice and consent to the use of your personal information as described.

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More about this job

Skills

AWS
Python
Kotlin
MySQL
Kubernetes
Communication skills
Collaboration
Onboarding

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