Freelance Algorithmic Trading Software Developer Jobs in Phoenix, AZ

We are seeking a highly skilled and motivated Sr Advanced Software Engineer to join our engineering team. This role is responsible for a variety of professional-level engineering responsibilities and requires the application of advanced knowledge of software engineering disciplines, processes, and tools to execute project subtasks and ensure compliance with technical, quality, and customer requirements.
The successful candidate will contribute to the design, development, integration, verification, and release of software features for Avionics Displays systems, algorithms, and software frameworks. This position plays an important role in delivering products that meet customer specifications, certification requirements, and organizational quality standards. The role also involves regular interaction with internal stakeholders and external customers to support project execution and product compliance.
This Sr Advanced Software Engineer is recognized as an emerging authority within Integrated Flight Deck Systems COE and is expected to help define and improve engineering processes, recommend enhancements to technical methods, and mentor early-career engineers. The ideal candidate demonstrates strong technical depth, independent problem-solving ability, and the capability to lead feature decomposition, coordinate development activities, and support programs execution.
In this role, the candidate will directly impact product delivery by executing engineering subtasks, identifying technical improvements, driving feature implementation, and supporting the successful completion of customer-driven software solutions.
Responsibilities

• Plan and execute engineering project tasks to meet technical, quality, schedule, and customer requirements.
• Perform feature implementation, sub-task identification, and technical coordination across software development activities.
• Develop, analyze, and capture software and system requirements for assigned features and subsystems.
• Design, develop, integrate, and maintain software for Avionics Displays systems, algorithms, and application/framework-level functionality.
• Conduct testing, debugging, integration, and verification of software and systems to ensure compliance with product and project requirements.
• Support generating software builds, integration, and release activities to enable efficient software delivery.
• Collaborate with cross-functional teams, including systems engineering, cross-functional teams, quality, certification, program management, and other engineering disciplines.
• Support the completion of products to achieve certification and customer acceptance.
• Interface with internal and external customers to facilitate product development and ensure compliance with customer specifications.
• Communicate project status, technical progress, risks, and process updates to leadership and customers.
• Identify non-compliance issues and communicate audit findings, corrective actions, and technical impacts to relevant stakeholders.
• Identify, propose, and implement technical and process improvements to enhance engineering efficiency, quality, and project outcomes.
• Contribute to the development and refinement of engineering processes, methods, and guidelines within Integrated Flight Deck Systems COE.
• Provide technical guidance and mentorship to early-career engineers.
• Provide directions to other engineers and support personnel to ensure alignment with project and product compliance objectives.

Qualifications
YOU MUST HAVE

• Bachelor's degree from an accredited institution in a technical discipline such as the sciences, technology, engineering or mathematics.
• 8 years of software development experience, including product development and systems/software integration in embedded, real-time, or regulated software environments.
• 8 years of hands-on development experience using C++ in embedded and/or real-time systems (e.g., DEOS, RTOS, or equivalent environments).
• Experience designing and implementing software architectures, object-oriented designs, algorithms, data structures, and software lifecycle processes including design, development, verification, and release.

WE VALUE

• 8 years of experience developing software in regulated or safety-critical industries such as aerospace, avionics, defense, industrial automation, medical devices, or similar environments.
• Experience developing, integrating, testing, or maintaining real-time, embedded, control, or mission-critical systems.
• Experience supporting certification, compliance reviews, quality audits, or requirements-based verification activities.
• Experience providing technical guidance, code reviews, onboarding support, or mentoring to early-career engineers.

BENEFITS
Beyond a performance-driven salary, you'll work alongside dedicated experts on technology that's advancing aviation. As a Honeywell Aerospace employee, you're eligible for a comprehensive benefits package that includes:

• Employer-subsidized medical, dental, vision and life insurance
• Short-term and long-term disability coverage
• 401(k) match, flexible spending accounts and health savings accounts
• Employee assistance program and educational assistance
• Parental leave and 12 paid holidays
• Paid time off for vacation, personal and sick time

Explore your benefits: https://honeywellaerospacebenefits.com/
U.S. PERSON REQUIREMENTS
Must be a US Citizen due to contractual requirements
ABOUT HONEYWELL AEROSPACE
Join a company that's reintroducing itself to the aviation community we've helped advance for more than a century. At Honeywell Aerospace (NASDAQ: HONA), we're launching as an independent, publicly traded aerospace and defense company built on a legacy of operational excellence and mission-focused execution.
Our new brand identity pairs that heritage with real momentum, as we build technology that helps pilots navigate with confidence, aircraft operate more efficiently, and operators stay ahead of change. With our systems on board 90% of the world's aircraft, your work here has reach that's rare to find anywhere else.
Focusing on our customers, investing in innovation, and building a culture of accountability and performance is how we're shaping what comes next.
Every horizon. Every mission. Every day.
ABOUT THE BUSINESS UNIT
Honeywell Aerospace products and services are found on aircraft across commercial aviation, defense and space - from engines and cockpit electronics to cabin systems, mechanical components and connectivity solutions. Our technology helps operators fly more safely, reduce fuel consumption, improve on-time performance and deliver a better experience for the people on board.
As aviation continues to evolve, we're also developing systems to support autonomous and supersonic platforms, bringing the same focus on safety and efficiency to the next era of flight. With approximately 36,000 employees worldwide and net sales of $17.4B in 2025, Honeywell Aerospace is one of the largest dedicated aerospace companies in the world. Explore our businesses: https://www.honeywellaerospace.com
Electronic Solutions develops the avionics, navigation systems, sensors and electromagnetic defense technology that help aircraft perform safely and with precision. Our systems are on board 90% of the world's aircraft - serving commercial aviation, defense and space operators from integrated flight deck platforms with 30-plus years in service to radiation-hardened systems trusted for human spaceflight.
The application period for the job is estimated to be 40 days from the job posting date; however, this may be shortened or extended depending on business needs and the availability of qualified candidates. Posting Date: September 2, 2026
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