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Fintech Senior Software Engineer Jobs in Arizona

RTA Fleet

Senior Software Engineer

Glendale, AZ · On-site +1

$200K - $220K/yr

Senior Software Engineer (Full-Stack Mastermind) $200k - $220k / year Fully remote Description Most software engineers write code. We're looking for someone who changes the trajectory of a product.

Encora

Senior Software Engineer

Scottsdale, AZ · On-site

$149K - $150K/yr

Senior Software Engineer Code, debug, and support cloud-based applications. Perform unit, integration, and system testing. Design, implement, and consume RESTful web APIs. Create elegant user ...

Oscar Technology

Senior Software Engineer

Phoenix, AZ · On-site

$121K - $160K/yr

Role We are seeking a Principal/Senior Software Engineer to lead the development of our high-performance backend systems, data pipelines, and compute orchestration layers. You will build the core ...

Oscar Health

Senior Software Engineer, Backend

Tempe, AZ · Hybrid

$158K - $207K/yr

We're hiring a Senior Software Engineer, Backend to join our Engineering team. Oscar is the first health insurance company built around a full stack technology platform and a focus on serving our ...

Encora

Senior Software Engineer

Scottsdale, AZ · On-site

$149K - $150K/yr

Senior Software Engineer Code, debug, and support cloud-based applications. Perform unit, integration, and system testing. Design, implement, and consume RESTful web APIs. Create elegant user ...

Wells Fargo

Senior Software Engineer

Phoenix, AZ · On-site

$121K - $160K/yr

About the Role Wells Fargo is seeking a seasoned Senior Software Engineer to design, develop, and deliver complex solutions within our big data, cloud, and distributed systems ecosystem. This role is ...

INFOSYS NOVA HOLDINGS

Senior Software Engineer

Phoenix, AZ · Remote

$121K - $160K/yr

Senior Software Engineer In this role, you will: * Lead moderately complex initiatives and deliverables within technical domain environments * Contribute to large scale planning of strategies

Rocket Lab Corporation

Senior Software Engineer II

Tucson, AZ · On-site

$115K - $152K/yr

SENIOR SOFTWARE ENGINEER II Rocket Lab Optical Systems solves mission-critical space domain and Intelligence, Surveillance, and Reconnaissance challenges for Department of Defense and Intelligence ...

Socket.dev

Senior Software Engineer II

Tucson, AZ · On-site

$118K - $155K/yr

SENIOR SOFTWARE ENGINEER II Rocket Lab Optical Systems solves mission-critical space domain and Intelligence, Surveillance, and Reconnaissance challenges for Department of Defense and Intelligence ...

Rocket Lab Corporation

Senior Software Engineer II

Tucson, AZ · On-site

$115K - $152K/yr

SENIOR SOFTWARE ENGINEER II Rocket Lab Optical Systems solves mission-critical space domain and Intelligence, Surveillance, and Reconnaissance challenges for Department of Defense and Intelligence ...

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Fintech Senior Software Engineer information

What does a Fintech Senior Software Engineer do?

A Fintech Senior Software Engineer is responsible for designing, developing, and maintaining complex software solutions tailored for the financial technology sector. This role involves working with technologies such as blockchain, payment processing systems, and security protocols to build scalable and secure financial applications. Senior engineers also mentor junior developers, collaborate with cross-functional teams, and ensure compliance with industry regulations. Their work is crucial in enabling innovative digital financial products and services.

How does a Fintech Senior Software Engineer typically collaborate with cross-functional teams to deliver secure financial solutions?

As a Fintech Senior Software Engineer, you will regularly work with product managers, UX/UI designers, compliance specialists, and QA engineers to design, develop, and deploy secure financial applications. Collaboration often involves participating in agile ceremonies, reviewing technical requirements, and ensuring all solutions meet regulatory and security standards. Effective communication and teamwork are crucial, as you’ll need to balance innovation with strict compliance, and often mentor junior engineers in best practices. This cross-functional approach ensures that the final product is robust, user-friendly, and aligned with business objectives.

What are the key skills and qualifications needed to thrive as a Fintech Senior Software Engineer, and why are they important?

To thrive as a Fintech Senior Software Engineer, you need advanced programming skills (such as Java, Python, or C++), a deep understanding of financial systems, and a degree in computer science or related field. Proficiency with cloud platforms (like AWS or Azure), knowledge of financial APIs, and familiarity with security protocols and regulatory compliance tools are typically required. Strong problem-solving abilities, effective communication, and leadership skills help you collaborate with cross-functional teams and manage complex projects. These competencies are crucial for building secure, scalable, and innovative financial technology solutions in a highly regulated and rapidly evolving industry.

What is the difference between Fintech Senior Software Engineer vs Fintech Software Developer?

AspectFintech Senior Software EngineerFintech Software Developer
Required CredentialsBachelor's/Master's in CS or related, 5+ years experienceBachelor's in CS or related, 1-3 years experience
Work EnvironmentDesigning complex systems, leading projectsImplementing features, coding, testing
Employer & Industry UsageFinancial tech firms, banks, startupsFintech companies, startups, financial institutions

The main difference between a Fintech Senior Software Engineer and a Fintech Software Developer lies in experience, responsibilities, and scope. Senior engineers typically lead projects, design system architecture, and mentor junior staff, while developers focus on coding and implementing features. Both roles require strong technical skills, but senior roles demand more experience and leadership capabilities.

Is fintech a high paying career?

A senior software engineer in fintech typically earns higher-than-average salaries due to the specialized skills required, such as knowledge of financial regulations, security, and programming languages like Java or Python. Compensation can vary based on experience, location, and company size, but fintech roles are generally considered well-paying within the tech industry.

What are popular job titles related to Fintech Senior Software Engineer jobs in Arizona?

For Fintech Senior Software Engineer jobs in Arizona, the most frequently searched job titles are:

What job categories do people searching Fintech Senior Software Engineer jobs in Arizona look for?

The top searched job categories for Fintech Senior Software Engineer jobs in Arizona are:

Fintech Senior Software Engineer jobs near you
Infographic showing various Fintech Senior Software Engineer job openings in Arizona as of September 2026, with employment types broken down into 100% Full Time. Highlights an 73% In-person, and 27% Remote job distribution.

Senior Software Engineer

Glendale, AZ • On-site, Remote

RTA Fleet
See more jobs at RTA Fleetexternal

$200K - $220K/yr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 14 days ago

Job description

Senior Software Engineer (Full-Stack Mastermind)
$200k - $220k / year
Fully remote
Description
Most software engineers write code. We're looking for someone who changes the trajectory of a product.
Do you thrive on owning a problem from the database all the way through the user experience? Can you move comfortably between designing an API, debugging a production issue, optimizing a SQL query, and improving a front-end workflow? Are you the type of engineer who sees a complicated problem, figures out what needs to happen, and ships a solution other people thought would take twice as long?
And just as importantly: are you already figuring out how AI changes the way great software gets built?
If so, read on.
I'm the Head of Engineering at RTA, and I'm looking for a Senior Software Engineer to help build and evolve Fleet360, our fleet management SaaS platform. This is a high-ownership, high-impact role. You won't just be executing tickets. You'll be shaping solutions, making architectural decisions, working across the stack, and raising the engineering bar for the people around you.
We are also serious about becoming an AI-first engineering organization. That doesn't mean blindly generating code and shipping whatever an LLM spits out. It means using AI as a force multiplier throughout the software development lifecycle: understanding unfamiliar code, exploring solutions, generating and reviewing implementations, writing tests, debugging issues, documenting systems, automating repetitive work, and dramatically increasing the speed at which a great engineer can deliver great software.
We want engineers who are actively figuring out how to work differently because these tools exist.
This role is not for everyone. If you prefer clearly scoped tasks, minimal ambiguity, staying exclusively in one layer of the stack, and steady incremental work, we'd still love to have you, just not in this seat.
This role is for engineers who see an undefined problem and feel a pull toward it, not away from it.
What we're looking for
In general, someone who:
  • Is a force multiplier. When you're on a project, the whole team moves faster and ships better. You raise the bar just by being in the room.
  • Is passionate about serving others.
  • Thinks like a product engineer, not just a programmer. You care about the outcome for the user, not simply whether your code works.
  • Owns problems end to end. Front end, API, database, integration, production issue: you go where the problem takes you.
  • Works AI-first. You actively use modern AI development tools to make yourself faster and more effective, and you're constantly experimenting with better ways to use them.
  • Knows that AI output still requires engineering judgment. You validate assumptions, understand generated code, test aggressively, and never confuse speed of generation with correctness.
  • Has strong opinions, loosely held. You push back when something is wrong, but you update your views when presented with better information. You're not trying to be the smartest person in the room. You want the team to find the right answer.
  • Is comfortable being part of a team that thrives on healthy conflict. People with thin skin need not apply. No, seriously.
  • Passionately cares about our clients, who are fleet managers, parts clerks, and automotive technicians maintaining everything from squad cars to school buses, so everyone comes home safely at the end of the day.
  • Thinks of themselves less, while not thinking less of themselves. You're other-centric, compassionate, and self-assured.
  • Takes ownership and initiative. You identify how to make our products and processes better without waiting for permission. You don't ask for a ticket to fix something obviously broken.
  • Loves to read, learn, grow, and stretch themselves. Bonus points for each book they've read by Patrick Lencioni.

What we actually require
Five things. If you have these, apply and we'll figure out the rest together.
  • 5-7+ years of professional software engineering, with real ownership of production software. Not years logged, but systems you were responsible for when they broke.
  • Genuinely full stack. You may be stronger in one area, but you move between the browser, API, database, infrastructure, and third-party integrations when the work requires it.
  • Node.js and TypeScript at production scale. Well-designed APIs and services that hold up under real load.
  • Deep relational database ability. You design schemas, write and optimize SQL, diagnose performance problems, and reason about data integrity and concurrency.
  • AI-assisted development as a daily workflow, with judgment. You can break a problem down, give a coding agent useful constraints, evaluate what comes back, iterate, and steer it to a production-quality result. And you can tell when it's confidently wrong.

What strengthens your application
None of these are dealbreakers. Any of them make you more interesting to us:
  • Vue.js specifically, since it's what our front end is built on. Strong React or Angular experience translates well.
  • Browser-side application architecture: component design, state management, async behavior, performance, maintainable UX.
  • Systems design beyond features: services, event-driven patterns, distributed systems, data flows, and judgment about when complexity is and isn't justified.
  • Messaging and queues such as RabbitMQ, Kafka, or AWS SQS, used to build resilient and decoupled systems.
  • Caching and distributed application patterns, including technologies such as Redis.
  • Containerized, cloud-native applications, including Docker, AWS ECS/EKS, and Kubernetes.
  • Observability as a first-class concern: logs, metrics, traces, profiling, APM.
  • DevOps fundamentals: CI/CD, automated testing, and how software gets safely from a laptop into production.
  • Building AI-powered product capabilities: LLM APIs, tool and function calling, RAG, embeddings, vector search, structured outputs, evaluation, agents. Deep AI/ML research background is not required.
  • Communicating with precision: explaining an architectural tradeoff to a product manager and a hairy debugging session to a junior engineer without losing either of them.
  • A Bachelor's degree, especially in computer science or a related field. Not required.

Working with AI here
This is the part we care most about, so here's what we mean concretely:
  • You work agentically, not with autocomplete. You've driven multi-file refactors, migrations, and test coverage with coding agents, not just accepted single-line suggestions. You maintain the context files, rules, and prompts that make those tools work for a whole team, not only for you.
  • You review AI-generated work like code from any other contributor. Understand it, challenge it, test it, improve it, then ship it.
  • You have an eval habit. You can explain how you knew an AI feature actually got better, rather than just felt different.
  • You know when not to use a model. Our customers track DOT compliance, warranty claims, and parts inventory. Some of that must never be answered by something probabilistic, and you can tell which parts.
  • You look for engineering work to automate: test generation, debugging, code analysis, migrations, documentation, repetitive implementation, internal tooling.
  • Bring proof. A repo, an eval suite, a rules file, an agent workflow you built for your team. Anything real tells us more than another year of experience on paper.

Key responsibilities
  • Own features end to end: idea to production, across front-end interfaces, APIs, business logic, databases, integrations, and supporting infrastructure.
  • Build great user experiences: responsive, reliable, maintainable front-end functionality, with real understanding of the systems and data behind it.
  • Design and build back-end systems: scalable services and APIs in Node.js and TypeScript, with sound architectural and data-modeling decisions.
  • Work AI-first: use AI-assisted development and coding agents throughout your daily workflow for speed, quality, and leverage.
  • Improve how we build software: experiment with new AI-enabled workflows and help the team find the practices that materially move engineering productivity.
  • Build AI-powered product capabilities: features using LLMs, retrieval, agents, and intelligent automation where they create real customer value.
  • Elevate the team: rigorous code reviews, mentorship, shared techniques and patterns, and modeling the standards you want to see org-wide.
  • Improve performance and scalability: find bottlenecks across browser, network, application, database, and infrastructure, and drive them to resolution.
  • Solve production problems: when something breaks, dig through the whole system until you understand why. Don't stop at the boundary of the code you normally work on.
  • Integrate systems: connect third-party APIs and internal services, designing for reliability, failure handling, observability, and maintainability.
  • Ensure security and reliability: champion secure development practices and build systems our customers can depend on.
  • Collaborate across the business: work with Product, QA, Support, and other engineers to turn customer and business problems into high-quality software.

What success looks like
By day 90, you have:
  • Shipped at least two features end to end, browser through database, to production customers
  • Taken point on a production incident and driven it through resolution and postmortem
  • Made one improvement to the team's AI-assisted workflow that another engineer has adopted
  • Formed and shared a documented opinion on one part of the Fleet360 architecture you'd change, and why

By the end of year one, you have:
  • Taken end-to-end ownership of a significant domain of Fleet360, including architecture, reliability, and roadmap input
  • Shipped at least one AI-powered customer-facing capability, from design through evaluation
  • Measurably improved something we track: p95 latency on a key endpoint, deploy frequency, flaky test count, or defect escape rate
  • Changed how at least two other engineers work, and they'd name you as the reason

How we'll evaluate
  • A conversation with the hiring manager about your work and how you use AI tooling
  • A team conversation to evaluate mutual fit and discuss your technical experience, decisions, and problem-solving approach

The engineer we're ultimately looking for
  • You don't define yourself as a "front-end engineer" or a "back-end engineer."
  • You're a software engineer.
  • You understand that the technology is simply a means to solve a problem. If solving that problem requires writing a Vue component, changing an API, redesigning a database query, tracing a message through a queue, debugging an AWS service, or directing an AI coding agent through a large refactor, you're willing and able to go there.
  • And as AI fundamentally changes how software is built, you're not waiting for someone else to figure out what that means.
  • You're already experimenting.

The bottom line
We're looking for a rare combination: the technical depth to design serious systems, the ownership mindset to treat our product like it's their own, and the humility to serve others well. If you're the kind of engineer who leaves every codebase, team, and product measurably better than you found it, this is your seat.
Compensation and work location
Total compensation for the role is between $200k and $220k.
This is a full-time, fully remote role open anywhere in the US, with occasional travel to our Glendale, AZ headquarters for team gatherings.
This position is classified as exempt and is not eligible for overtime pay.
Why top talent chooses RTA
We invest in our people. Period.
  • 401(k) with 6% Safe Harbor match (100% vested day one)
  • Flexible PTO model built on trust and manager-approved time off
  • Cigna PPO and HSA medical plan options with company contributions ($780-$1,950 annually)
  • Garner Health HRA program: up to $1,000 individual / $2,000 family reimbursement opportunity
  • Wellness rewards up to $350 annually
  • Virtual care and mental health support resources
  • Company-sponsored benefits including dental, vision, EAP, life, STD, LTD, legal plan, and identity theft protection options
  • Additional employee perks, wellness initiatives, and discount programs

The part we're most proud of
  • 99% of employees say RTA is a Great Place to Work® (Certified 3 years running)
  • 30% ARR growth for two years straight
  • We are an AI-forward company building for the future
  • Big growth. Real benefits. Strong culture. A team that delivers.

About us
RTA has been established since 1979 and has the reputation of providing the best customer service in the market. Our purpose is to help fleets succeed. We pride ourselves on creating a caring, family-oriented atmosphere for both staff and clients, and love that our work makes a positive impact on all the lives we touch.
Our clients carry kids in school buses, first responders in emergency vehicles, patients in ambulances, food and medical supplies in trucks, and people just taking the bus or train to work. We do meaningful work, and we want our clients to have the best tools available to them.
Our office spaces are open, spacious, and colorful, with an abundance of natural light. We come together often as a company to enjoy freshly baked desserts or awesome lunches, and genuinely enjoy each other's company. We offer some pretty unique perks and benefits, as well as all the standard ones. We're happy to talk through all the options.
Physical and travel requirements
This role has the following physical and travel requirements:

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