Remote Mobile Developer Jobs in Arizona (NOW HIRING)

THIS POSITION IS FOR CANDIDATES BASED IN PHOENIX, AZ. (This role requires up to 10% travel annually, including occasional trips for team meetings, training, or client-related activities).

Sonatafy Technology, headquartered in Scottsdale, Arizona, is an award-winning nearshore software development company with a strong reputation. They have a dedicated in-house team of engineers, offering end-to-end software solutions and supporting client development staff augmentation. Catering to companies of all sizes and industries, including some of the world's largest brands, Sonatafy Technology is a trusted provider of nearshore enterprise-level cloud and mobile application software development services.

Sonatafy Technology is seeking aPrincipal Engineerto lead complex software architecture initiatives, drive modernization efforts, and lead high-performing engineering teams. This senior role blends architecture, hands-on development, and strategic problem-solving for enterprise clients building next-generation systems. You will guide multiple engineering teams through the design and delivery of scalable, event-driven platforms, establish technical standards, and ensure world-class engineering practices.

Key Responsibilities:

• Lead architecture design across distributed, event-driven, and microservices-based systems.
• Enforce clean architecture and SOLID principles, ensuring alignment across multiple engineering pods.
• Guide the adoption of emerging technologies, including Generative AI Development Toolchains, LLMs, and automation-driven engineering practices.
• Establish technical standards for code quality, CI/CD automation, testing, and documentation.
• Partner with executives, product managers, and DevOps to translate business challenges into scalable technical solutions.
• Lead client-facing technical discussions and solution architecture sessions during pre-sales engagements.
• Collaborate with the sales and delivery teams to design and present proposals, technical roadmaps, and proofs of concept that address client pain points.
• Participate in RFP/RFI responses, estimating, and solution scoping with a focus on clear business outcomes.
• Build trusted relationships with clients through strong communication, thought leadership, and credibility as a senior engineering partner.
• Mentor engineers and foster a culture of ownership, accountability, and continuous learning.
• Serve as a trusted advisor capable of bridging business priorities with technical strategy.
• Mentor engineers and foster a culture of ownership, accountability, and continuous learning.
• Participate in architecture reviews, code reviews, and sprint retrospectives to ensure technical excellence.
• Serve as a trusted advisor for clients, capable of translating complex technology strategies into business outcomes.

Required Qualifications:

• Minimum of 10 years of software development in data-centric Win32/Web applications using Microsoft tools:
• .NET, HTML, ASP, Microsoft SQL Server
• Expert-level understanding of relational databases (preferably MSSQL)
• Proven success leading or managing senior-level teams within Scrum/Agile environments
• Hands-on experience with Generative AI tools and techniques, including GitHub Copilot and Prompt Engineering
• Preferred experience with ASP.NET, WCF, Web Services, XML, SQL Server, Windows Services, UX Design, JavaScript, CSS, Domain-Driven Design, and nServiceBus
• Previous leadership in Agile or SAFe-based SDLC environments

Specialized Skills:

• Knowledge of Large Language Models (LLMs), Agentic AI, and Model Context Protocol (MCP) and their application in automation and feature engineering
• Strong understanding of consumer lending business processes
• Deep knowledge of design patterns and best practices for scalable architecture
• Proven ability to collaborate across departments (Product, Engineering, QA) to manage dependencies and technical initiatives
• Ownership mindset with strong decision-making, analytical, and communication skills
• Ability to ensure development processes deliver high-quality user experiences aligned with business goals
• Strategic thinker capable of defining long-term software roadmaps aligned with organizational priorities
• Track record of coaching teams, improving performance, and fostering a culture of innovation and learning
• Leadership presence, calm under pressure, and a genuine team-first approach
• Broad technical curiosity across multiple programming languages, frameworks, and tools
• Skilled at balancing priorities, managing deadlines, and ensuring delivery excellence

Why Work with Sonatafy?

At Sonatafy, you'll join a community of highly skilled engineers across Latin America supporting innovative U.S.-based teams. You'll be part of a fast-moving, client-first culture where your code has real-world impact. We offer competitive compensation, a remote-first lifestyle, and career growth opportunities across industries and technologies.

If you have reached this point and feel you are our ideal candidate, it's time for you to apply! To apply,please submit your resume in English.

Recruitment Scam Notice:

Sonatafy recruitment communications will only come from@sonatafy.comemail addresses. We do not request fees, sensitive financial information, or conduct hiring solely through online forms without interviews. If you receive a suspicious message, contact us atcareers@sonatafy.com.