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US Canada Unlimited PTO

  • Own the technical delivery of mission critical, event based payment systems handling millions of daily transactions; responsible for the expansion of architectural decisions.
  • Define “what good looks like” by establishing modern standards of AI-enabled workflows, metric driven stewardship required for global scale payments systems reliability.
  • Shape engineering and product strategy jointly, as a bridge between cross functions, co-author of technical roadmaps, guardian of technical backlogs and a driving force behind engineering standards.

AI Engineering Architecture Payments Fintech

20 jobs similar to Senior Staff Software Engineer

Jobs ranked by similarity.

US

  • Lead the design of a double-entry, multi-partner sub-ledger architecture.
  • Design the integration layer that lets the company add or swap partners without rewriting product code.
  • Design how OFAC screening, BSA/AML signals, and in-house fraud models run inline on every money movement decision.

CertifID provides a secure platform that verifies identities, authenticates wire transfer instructions, and detects fraud attempts in real estate transactions. They have been recognized as one of the Best Startups to Work for in Austin and prioritize a dynamic work environment.

US

  • Own and ship full-stack features end-to-end, from shaping early ideas to delivering production systems used by customers daily.
  • Build complex, data-dense interfaces that don't break under real customer data.
  • Use AI tooling as your primary mode of writing code; own architecture, decomposition, verification, and review.

They are building an AI-native back-office for small businesses, offering autonomous agents and expert-backed service. This is a lean, high-trust team, which means less process, fewer layers, and more ownership for the engineers, who shape the product and influence decisions.

$180,000–$250,000/yr
US

  • Build our core Python/Rust platform: request routing, AI workload orchestration, scheduling, GPU autoscaling, large scale file storage, queueing, etc
  • Produce forward designs for platform evolution as we scale to 100x current traffic and need to provide low latency across the world
  • Leverage AI to an extreme level to automate the mundane parts of building complex but reliable systems

Fal is building the infrastructure, tools, and model access to move from AI idea to production. They aim to be the unified platform where high-performance inference, orchestration, and observability come together to unlock new categories of AI-native products.

$214,000–$300,000/yr
US

  • Serve as a Technical Lead across multiple teams - setting architectural direction, unblocking engineers, and ensuring high-quality delivery aligned with long-term goals.
  • Define the north-star architectural vision for the Money Group and continuously identify shorter-term projects that move us toward it.
  • Architect the convergence of Gusto's People Stack (payroll, HR, benefits) and Finance Stack (banking, accounting, payments, lending) into a unified platform for small businesses.

Gusto's mission is to grow the small business economy. They handle payroll, health insurance, 401(k)s, and HR, so owners can focus on their craft and their customers. With teams in Denver, San Francisco, and New York, they support more than 500,000 small businesses nationwide.

$210,000–$290,000/yr
US

  • Be the AI engineering technical authority and set the technical standard for how AI is used in code generation, review, testing, and task automation.
  • Drive the architecture and implementation of automated PR Review, Android and API Test Automation and AI Agent Swarms.
  • Evangelize by shipping, not by presenting, measuring everything and reporting to the CTO monthly with quantified value delivered.

SpotOn provides independent restaurants with tools to compete and win, including point-of-sale systems and AI-powered profit tools. They are known for their innovative software and technology solutions and are a Great Places to Work recipient.

US Unlimited PTO

  • Architect and build the AI-native design platform infrastructure for OnePay, connecting the design system to AI layers for tools and code generation.
  • Collaborate closely with the Design Engineer to evolve the design-to-code pipeline and partner across the organization to ensure platform adoption and usefulness.
  • Develop systems with a focus on adoption, extensibility, and serving audiences beyond just designers and engineers, including product, marketing, and creative teams.

OnePay is an all-in-one financial services platform that provides banking, savings, credit cards, lending, investing, and crypto services. It is a fast-paced, mission-driven company backed by major investors like Walmart and Ribbit Capital, with a culture that values urgency, low ego, and exceptional craft.

$147,873–$198,382/yr
Europe

  • Be responsible for owning and delivering quarterly goals for your team.
  • Support peers and stakeholders in the product development lifecycle.
  • Foster a culture of quality and ownership on your team.

Affirm is reinventing credit to make it more honest and friendly, giving consumers the flexibility to buy now and pay later without any hidden fees or compounding interest. The company is remote-first and values its employees by providing competitive benefits.

Global Unlimited PTO

  • Diagnose business problems before building solutions, mapping workflows and confirming AI is the right intervention.
  • Own AI initiatives end-to-end, from stakeholder discovery and technical design through implementation and iteration.
  • Improve organizational flow by building solutions that reduce bottlenecks and increase throughput, measuring success using flow metrics.

GitLab is the intelligent orchestration platform for DevSecOps, enabling organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. GitLab has more than 50 million registered users and a high-performance culture driven by its values and continuous knowledge exchange.

US Canada Unlimited PTO

  • Lead and scale global payment operations across merchant onboarding, disputes/chargebacks, reconciliation, settlements, and payouts.
  • Manage and expand strategic partnerships with PSPs, banks, and fintech providers, including commercial negotiations and performance optimization.
  • Build and lead a high-performing global team, establishing KPIs, SLAs, and a culture of operational excellence.

ABC Fitness is the #1 software provider for fitness businesses, supporting 30K clubs, 650K coaches, 40M members, and processing more than $12B in payments every year. ABC Fitness offers outstanding employee benefits, and training is provided on an on-going basis allowing employees to develop their strengths.

Europe

  • Ship fast and well: Deliver a new AI agent every 6 weeks, owning the full backend and AI logic from scoping to deployment — balancing speed with reliability and minimal technical debt.
  • Build for the long term: Architect pragmatic LLM guardrails and future-proof components that hold up in a regulated banking environment and don't need rewriting three months later.
  • Leverage AI daily: Use AI coding tools (Cursor, Claude Code, Copilot…) for ~70% of your coding to review, refine, and ship features faster.

Qonto is creating the freedom for SMEs to succeed by delivering Europe's leading finance workspace with banking at its core, augmented by financial tools. Founded in 2017, Qonto has grown to 1,600+ Qontoers serving over 600,000+ customers across 8 European countries and has been profitable since 2023.

$155,000–$200,000/yr
Unlimited PTO

  • Own the technical relationship with a portfolio of customers, including architecture sessions and production debugging.
  • Plug our product into each customer's ecosystem through third-party data integrations and product customizations.
  • Surface trends from customer work and partner with product engineering to land them in the roadmap.

Sixfold is building AI agents that understand risk the way a 20-year veteran underwriter does. They build systems that make real decisions on billions in premium for some of the world's largest carriers. Sixfold team is focused, comprised of insurance operators, AI researchers, and engineers who love hard problems.

$154,384–$198,893/yr
Europe

  • Design, build, and own core components of the agent platform, from the orchestration layer to the tool integrations connecting it to internal systems.
  • Build and evolve the capabilities layer: APIs, data access patterns, and service integrations for agents to execute operational workflows.
  • Architect the knowledge and memory infrastructure, allowing agents to retrieve the data and act across our systems.

Justworks helps businesses get off the ground by enabling them to focus on running their business and solves HR issues. The company embraces a supportive, entrepreneurial environment where employees are encouraged to build something meaningful and have fun.

US Unlimited PTO

  • Own the end-to-end payments delivery roadmap across financial reporting, payout operations, refunds and disputes, tax, and Stripe Connect execution.
  • Translate strategy from the Sr. Manager, Payments Strategy & Product into sequenced, shippable delivery plans with clear acceptance criteria.
  • Partner with Engineering on technical scoping, sequencing, and integration with banking partners (Wells Fargo, NetSuite) and payment processors.

PlayOn gives every fan a front-row seat to the moments that matter most in high school sports through GoFan, NFHS Network, and MaxPreps. Backed by KKR, they build the technology that powers high school athletics from the inside out, focusing on making high school sports more accessible, memorable, and connected.

Europe

  • Help Qonto build the AI-first product that transforms how businesses manage their finances.
  • Provide technical direction and mentorship to turn a high-velocity squad into a high-quality one.
  • Set the technical standard for a 13-person cross-functional team as we scale from one AI agent to many.

Qonto is creating the freedom for SMEs to succeed by delivering Europe's leading finance workspace with banking at its core, augmented by financial tools. They have grown to 1,600+ Qontoers serving over 600,000+ customers across 8 European countries and have been profitable since 2023.

$189,000–$236,200/yr
US Canada

  • Shape how AI-powered capabilities show up across complex financial workflows.
  • Translate emerging technical capabilities into intuitive, human-centered experiences.
  • Design systems that balance automation, transparency, and user control.

Mercury is exploring how intelligent systems can bring structure and confidence to complex financial workflows. They are an equal opportunity employer who values diversity and is committed to providing reasonable accommodations.

US Canada Unlimited PTO

  • Set architectural direction for major client engagements.
  • Partner with Strategic Principal to shape SOWs.
  • Provide technical oversight across multiple workstreams.

Liatrio enables real transformation. They help industry-leading enterprises break free from legacy systems and adopt AI that reshapes how teams build, deliver, and thrive at scale.

$124,200–$198,700/yr
US

  • Design, build, test, deploy, and maintain scalable, reliable platform services and shared libraries.
  • Contribute to platform and system architecture decisions with a focus on reliability, scalability, and developer experience.
  • Write high-quality, maintainable code and set a strong example of engineering best practices.

Oportun is a mission-driven financial services company that aims to help its members reach their financial goals. They have provided more than $21.3 billion in responsible and affordable credit and saved its members more than $2.5 billion in interest and fees.

$160,000–$180,000/yr
US Unlimited PTO

  • Identify systemic engineering challenges across our platforms and drive their resolution.
  • Write code, review PRs, debug production issues, and optimize system performance.
  • Partner with engineering teams as a technical point of contact on complex projects.

Zeta Global is an AI-Powered Marketing Cloud that leverages advanced artificial intelligence (AI) and trillions of consumer signals to help marketers acquire, grow, and retain customers more efficiently. They were founded in 2007 and are headquartered in New York City with offices around the world.

$107,000–$168,000/yr
US

  • Translate product vision into production-ready code, working closely with Product Managers to turn business goals into actionable plans.
  • Help drive the transition to a self-service model, ensuring infrastructure remains performant across new global regions as the team and technology scales.
  • Take end-to-end ownership of service health, including participating in design docs and implementing robust monitoring/alerting.

Addepar is a global data and AI platform that empowers investment professionals to turn complex financial information into actionable intelligence. More than 1,400 firms manage and advise on nearly $9 trillion in assets, and we strive to promote a welcoming environment, and inclusion and belonging are held as a shared responsibility.

Canada US Unlimited PTO

  • Own the technical relationship with design partners and prospects, leading discovery and solution design to turn interest into long-term adoption.
  • Serve as the bridge to Product and Engineering by synthesizing customer signals and workflow gaps to drive the product’s evolution.
  • Build and maintain demo environments, reference architectures, integration prototypes, and sample code that showcase the product’s credibility.

Upsun is a cloud application platform designed for hybrid teams, where AI agents write and test code, and humans focus on solving critical problems. They are a remote, global workforce committed to open source and an open, welcoming environment, with a team that spans the globe and the experience spectrum.