Principal Software Engineer

Principal Engineer, Backend Technical Leadership

Location: Remote or Hybrid in Lehi or St George, UT

• Department: Engineering
• Reports To: Engineering Director or VP of Engineering

About Mango Voice

Mango Voice is a leading provider of cloud-based communication solutions, helping businesses of all sizes connect with their customers through innovative VoIP, SMS, and collaboration tools. We are rapidly expanding our partner ecosystem and are looking for a deeply experienced and technically profound leader to drive the long-term technical vision and architectural excellence of our core backend platform.

The Role

Mango Voice is searching for a collaborative and visionary Principal Engineer to provide exceptional technical leadership for our backend services and infrastructure. Operating at a broad, cross-team level, this individual will be instrumental in shaping the technical direction for an entire Engineering Group composed of multiple teams.. This role involves a strong emphasis on technical strategy, complex problem-solving, and mentoring Staff and Senior Engineers to deliver high-quality, scalable, and resilient solutions on AWS using Golang.

Key Responsibilities

Technical Vision & Architectural Excellence

• Drive the long-term technical roadmap for core backend systems, ensuring alignment with overall product and business goals (e.g., high availability, efficiency, and speed to market).
• Lead the design and implementation of highly scalable, distributed, and fault-tolerant architectures across multiple teams, leveraging cloud-native patterns on AWS.
• Act as the primary technical authority and decision-maker on large, cross-functional projects, unblocking teams and accelerating development timelines.
• Champion technical consistency, identifying and solving complex technical challenges that span multiple engineering teams.

Technical Leadership & Mentorship

• Mentor and coach Staff and Senior Engineers, fostering a culture of technical excellence, continuous learning, and ownership.
• Conduct complex code and design reviews, providing constructive and insightful feedback that raises the quality bar across the organization.
• Establish and champion engineering best practices, including code standards, security patterns, agentic coding rules and workflows, testing methodologies, and robust deployment pipelines.
• Drive initiatives to improve engineering productivity and the developer experience, particularly as we scale production deployments across various regions and compliance boundaries.

Delivery & Operational Strategy

• Collaborate with Engineering Directors and Product Managers to translate high-level requirements into robust technical designs and ensure technical efforts align with the overarching strategic plan.
• Actively participate in the Shape Up framework, providing deep technical context for project scoping and execution planning.
• Identify and mitigate technical risks proactively, ensuring the reliability, performance, and security of all backend services, especially concerning high-volume communication and AI workflows.
• Ensure that individual team projects align with the overarching architectural strategy and contribute to a unified, scalable platform.

Required Qualifications

• Experience: 12+ years of professional software development experience, with a heavy emphasis on backend systems.
• Leadership: Proven experience as a Principal Engineer, Staff Engineer, or equivalent role with demonstrated technical leadership and cross-team architectural guidance.
• Architecture: Deep expertise in designing and operating large-scale, distributed systems and microservices architecture.
• Language: Expert-level proficiency in Golang (Go) for high-volume, production-ready systems.
• Cloud Platform: Strong hands-on experience designing and building solutions on AWS (e.g., EC2, S3, RDS, Lambda, EKS, DynamoDB).
• Datastores: Extensive experience designing efficient database schemas with relational and NoSQL databases (e.g., PostgreSQL, Cassandra, Redis).
• Communication: Excellent verbal and written communication skills, with the ability to articulate complex technical ideas to both technical and non-technical audiences.

Preferred Qualifications

• A track record of driving significant, company-wide technical change and adoption.
• Prior experience in a high-growth or hyper-scale environment, particularly in VoIP or real-time data processing.
• Experience with real-time data processing, streaming technologies, and messaging systems in an AWS environment.
• Familiarity with the Shape Up project management methodology.
• Experience designing and building autonomous or semi-autonomous software agents and AI-driven workflows (LLMs, prompt engineering, agentic development).
• Advanced degree in Computer Science or a related field.

Applicants must be authorized to work for ANY employer in the U.S. We are unable to sponsor or take over sponsorship of an employment Visa at this time.

No recruiters or 3rd party applications.

We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy, or any other protected characteristic as outlined by federal, state, or local laws.