Staff/Principal Software Engineer

AZX; Seattle (WA); Remote; USD 130,000 - 190,000; Full time

Job summary

AZX, a public benefit corporation, seeks a Staff/Principal Software Engineer to lead meaningful projects in AI transformation. This remote position requires demonstrating leadership in architecture, development, and team collaboration, along with a commitment to clean, scalable code and innovative solutions.

Benefits

Equity

Comprehensive health insurance

Generous paid time off

Qualifications

• 10+ years of professional software development experience.
• Experience in cloud-native environments (AWS, GCP, Azure).
• Proficiency in modern frameworks and clean code practices.

Responsibilities

• Architect, design and build scalable systems for client solutions.
• Lead collaboration across disciplines to solve complex challenges.
• Integrate AI and ML capabilities into real-world products.

Skills

Problem Solving

Collaboration

Communication

Education

Degree in Computer Science or related field

Tools

React

Python

Cloud-native technologies

Job description

Staff/Principal Software Engineer

Location: Remote (US)
Staff/Principal Engineer | Full-time | Equity + Benefits | Profitable Public Benefit Corporation

About AZX

Founded in 2024, AZX delivers AI transformation for critical industries, such as energy, real estate, and infrastructure. We believe success means removing barriers between ideation and execution, prioritizing code over PowerPoint, and focusing on challenging client problems. As a result, our strategy, execution, and acceleration solutions apply start-up principles that challenge conventional thinking, implement quickly, and deliver results.

We don’t build bloated slide decks—we build the systems that matter. We’re profitable, growing, and committed to solving meaningful problems through humility, innovation, and excellence.

Work Authorization

Applicants must have authorization to work in the United States on a permanent basis. We are unable to sponsor or take over sponsorship of employment visas at this time.

What You’ll Do

As a Software Engineer IV/V (Staff/Principal) at AZX, you’ll develop cutting-edge tools and platforms that make real-world impact. You will provide thought and team leadership and company and a have a key role in designing solutions to some of the most industry's most difficult challenges. Depending on your skill set (front-end, back-end, or full-stack), you will:

• Architect, design and build scalable systems that power critical client solutions—cloud-based APIs, clean front-ends, and resilient data pipelines, establishing the architectural patterns and best practices which will drive success across engagements.

• Proactively lead and drive collaboration across disciplines—engineers, designers, strategists and sales—to bring clarity to complex challenges and rapidly iterate on solutions.

• Integrate AI and ML capabilities into real-world products (LLMs, automation pipelines, intelligent interfaces) whilst setting the standards that elevate the quality bar across projects.

• Write clean, maintainable code with an eye on performance, security, and long-term scalability.

• Think like a consultant and industry leader—work with clients and program managers to identify client needs, ask smart questions, and proactively propose and cost solutions.

• Navigate ambiguity while demonstrating leadership, confidence, curiosity, and empathy.

• Innovate through experience and data-driven risks, and swift course correction if needed

• Demonstrate a Learning mindset - and leverage feedback and insights from the entire team. Keep on top of new technologies and proactively experiment and evaluate new technologies to develop and understanding of their pros and cons to share with others and drive strategic goals

• Lead, inspire and mentor - work to continuously upskill the entire team. Foster a culture of technical excellence, knowledge sharing, and continuous improvement across the engineering organization.

What You Bring

We’re seeking versatile veteran engineers with sharp problem-solving instincts and a proactive, ownership-driven mindset and a passion for solving hard problems and instilling engineering and product excellence.

Must-Have Qualifications

All Roles

• 10+ years of professional software development experience - including architecture and system design skills.

• A commitment to designing and writing clean, maintainable, and well-tested code, and a no-broken-windows attitude

• Experience building scalable and reliable services in cloud-native environments (AWS, GCP, Azure)

• Extensive understanding of Software Development Lifecycle (SDLC), working with git, pull requests, resolving merge conflicts, etc, improving organizational processes and tools to make the team more productive.

• Strong testing fundamentals across different test types (unit, integration, e2e, etc.)

• Proficiency in debugging using language/framework appropriate tooling (Chrome Dev Tools, PyDBG, etc)

• Exceptional communication skills—able to explain complex systems to both technical and non-technical stakeholders

• A proven track record of working on ambiguous or high-stakes projects - with a defined approach to identifying and mitigating risk

• Project and Team lead experience - with proven ability to lead complex engineering projects and work with internal and customer teams

• Located in or aligned with US/Canada time zones

Front End/Full Stack

• Fluency and proficiency working with modern React using HTML5, CSS3, and TypeScript

• Deep understanding of client-side state management (Hooks, Context, Redux, Zustand, etc.)

• Experience writing tests with modern front-end testing tools (Vitest/Jest, Playwright/Cypress/Selenium, etc.)

• Familiarity with modern front-end build tools (Vite, Parcel, Rollup, etc.)

• Understanding of responsive web design and cross-browser compatibility

Back End/Full Stack

• Expertise in at least one high-level backend language (Python 3 preferred, TypeScript, Go, etc.)

• Experience designing, developing, and maintaining secure RESTful APIs using a modern web framework (FastAPI preferred, Node.js/Deno, ASP.NET Core, etc)

• Extensive experience writing tests with language/framework appropriate tools and libraries

• Experience working with key web infrastructure technologies, including relational databases (PostgreSQL preferred, MySQL, Snowflake, etc.) and/or NoSQL (MongoDB, Redis/Valkey)

• Command of core engineering concepts such as asynchronous programming, concurrency, memoization, and caching, microservice/monolith architectures
  

Bonus Points

All Roles

• Degree in Computer Science or related field (e.g., Mathematics, Physics, Computational Finance, etc.)

• Experience in both startup and enterprise settings

• Founder/early engineer with startup experience, or experience freelancing/consulting

• Past work in energy, real estate, infrastructure, or sustainability

• Passion for solving high-impact problems with responsible AI

• Prior experiences as an engineering team lead or project lead

• Prior experience in devops and software deployments

• Active contributions to the wider technical community (conference talks, open source contributions, technical publications, blog posts)

• Experience establishing and evolving engineering best practices and architectural standards across an organization.

• Proven experience in technical due diligence or evaluating third-party solutions/acquisitions.

Front End/Full Stack

• Experience building with additional modern web libraries and frameworks (Svelte, Vue, Angular, HTMLX, etc.)

• Experience building AI forward experiences, incorporating content-rich datatables, charts, maps, and visualizations, streaming AI interactions.

Back End/Full Stack

• Demonstrable experience in multiple additional languages and/or backend frameworks

• Experience working with lower-level programming languages such as C++, Rust, etc.

• Experience working with additional networking paradigms (GraphQL, Websockets, Server Side Events, etc.)

• Experience developing/operationalizing machine learning models (Sk-learn, xgboost, Pytorch/Tensorflow/JAX, Onnx, etc.)

• Experience working with additional database types such as graph, or vector (e.g., Neo4j/TigerGraph/Dgraph, Pinecone/Milvus/Weaviate/Chroma, etc.)

• Working knowledge of DevOps practices such as building and maintaining CI/CD pipelines, working with Docker, Kubernetes, Terraform, Pulumi, and Bicep

What We Offer

• Competitive compensation + stock equity

• Comprehensive health insurance

• Generous paid time off

• A profitable, purpose-driven company committed to excellence

• The opportunity to work at a profitable, mission-driven company with a committed to impact and excellence

Why AZX?

We’re not a typical software shop—we’re a high-performance, values-driven team with deep respect for thoughtful problem-solvers. Here, you’ll have the autonomy to lead, the support to grow, and the mission to stay motivated.

If you’re looking for a place to do the best work of your career while shaping the future of sustainability, we want to hear from you.