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Principal Application Engineer Jobs in Delaware (NOW HIRING)

... application environments. Architect identity-centric access controls based on user, device, and ... Mentor architecture and engineering teams and establish a Zero Trust center of excellence.

... application environments. • Architect identity-centric access controls based on user, device, and ... and engineering teams and establish a Zero Trust center of excellence. • Collaborate across ...

... application environments. • Architect identity-centric access controls based on user, device, and ... and engineering teams and establish a Zero Trust center of excellence. • Collaborate across ...

Lead AI Engineer

Wilmington, DE · On-site

$186K - $285K/yr

... multiple application teams * Conduct architecture reviews, code reviews, and technical ... Principal Engineer, Architect, Lead Engineer, or equivalent technical leadership level across ...

Showing results 21-40

Principal Application Engineer information

See Delaware salary details

$50.5K

$110.8K

$152.1K

How much do principal application engineer jobs pay per year?

As of Aug 23, 2026, the average yearly pay for principal application engineer in Delaware is $110,794.00, according to ZipRecruiter salary data. Most workers in this role earn between $84,100.00 and $135,100.00 per year, depending on experience, location, and employer.

What is the difference between Principal Application Engineer vs Application Engineer?

AspectPrincipal Application EngineerApplication Engineer
CredentialsBachelor's or Master's in Engineering, often with specialized certificationsBachelor's degree in Engineering or related field
Work EnvironmentLead technical projects, mentor teams, and develop strategic solutionsImplement and support applications, troubleshoot issues, and assist clients
Industry UsageUsed in tech, manufacturing, and software companies for senior technical rolesCommon in software, hardware, and engineering firms for entry to mid-level roles

The Principal Application Engineer typically holds a senior, strategic role with leadership responsibilities, while the Application Engineer focuses on technical support and implementation. Both roles require strong engineering credentials, but the Principal position involves more oversight and project management.

What does a principal application engineer do?

A principal application engineer leads the design, development, and implementation of complex software applications, often providing technical guidance to teams. They analyze customer requirements, develop solutions, and ensure the performance and scalability of applications, typically using programming languages and development tools. This role requires strong technical expertise, problem-solving skills, and often involves mentoring junior engineers.

What are popular job titles related to Principal Application Engineer jobs in Delaware?

For Principal Application Engineer jobs in Delaware, the most frequently searched job titles are:

What job categories do people searching Principal Application Engineer jobs in Delaware look for?

The top searched job categories for Principal Application Engineer jobs in Delaware are:

What cities in Delaware are hiring for Principal Application Engineer jobs?

Cities in Delaware with the most Principal Application Engineer job openings:

Infographic showing various Principal Application Engineer job openings in Delaware as of August 2026, with employment types broken down into 76% Full Time, 18% Part Time, and 6% Contract. Highlights an 92% Physical, 2% Hybrid, and 6% Remote job distribution, with an average salary of $110,794 per year, or $53.3 per hour.

Principal Embedded Software Engineer

Hologic, Inc.

Newark, DE • On-site

$139.40 - $232.30/hr

Other

Re-posted 7 days ago


Hologic rating

8.0

Company rating: 8.0 out of 10

Based on 25 frontline employees who took The Breakroom Quiz

180th of 494 rated machine equipment manufacturers


Job description

Overview

Hologic is the market leader in mammography, and we're building the next generation of breast and skeletal health solutions. This role is for a Principal Embedded Software Engineer who will lead a team of engineers in designing, creating, and improving tools, processes, and software for today and for the future.

Candidate Profile
  • Passionate about and experienced with building quality software and quality teams.
  • Always looking for ways to improve your team’s tools and processes.
  • Enthusiastic about working in an Agile environment and able to help guide the team towards effective Agile practices.
  • Ready to jump wherever needed to make the biggest impact.
  • Excited to lead a team, guide junior engineers, and collaborate with stakeholders to maximize value.
Role Overview

The person in this role will work as part of a team developing embedded software for medical devices related to breast and skeletal health.

In addition to technical skills, we are looking for a strong technical leader within the division who deeply understands and adheres to good coding practices and can mentor junior engineers. They will partner with management to improve team processes and efficiency.

The ideal candidate will be able to work on‑site in Newark, Delaware or Marlborough, MA, flexibly 3‑4 days per week.

Essential Duties and Responsibilities
  • Maintain and expand on an expert level of understanding of our products and their use in clinical practice, using this knowledge to maintain these products as well as specify, design, develop and test our next generation products.
  • Own and lead the design, development, and documentation of software components and systems for new products, features, or functionality. Participate in high level architectural discussions and take ownership of defining requirements and developing corresponding specifications and procedures.
  • Develop and maintain software under an Agile/Scrum/Continuous Integration methodology.
  • Own and lead the identification, design, and implementation of required software testing to ensure features are properly tested. Collaborate with Test Engineering leaders to understand functionality and for the development and support of testing plans.
  • Owns the identification, diagnosis, prioritization, and correction of technical issues. Implement and track solid corrective actions to reduce defects and failures or optimize and streamline manufacturing processes. Ensures on time delivery of work products.
  • Actively initiates collaboration with the service team on key product design elements, their operation, and how to use them properly.
  • Drives continuous improvement across architecture, scalability, and performance quality.
  • Owns system level documentation to ensure that all safety, functional and third‑party requirements are captured.
  • Create and execute, in partnership with Architects & Product Management, the Application Architecture Strategy and Roadmap for their responsible area.
  • Provide input and support for risk assessments (SFMEA & PFMEA); evaluate and develop process control data as applicable to component, subsystem, and system level testing.
  • Create and manage engineering change orders.
  • Functions in a technical leadership role and identify and lead complex technical projects that are cross functional or interdepartmental that drive meaningful product development or improvements. Effectively coordinates and delegates responsibilities. Supervises work activities and support personnel to meet project objectives.
  • Develops project communication plans and provides regular communication and updates on success factors such as progress, schedule, budget, project risks and resource or needs gaps.
  • Recognized cross functionally as a go to technical expert and acts as lead for assigned products and subsystems. Establish collaborative relationships with all stakeholders within the site and create links with experts within the Hologic network and outside. Leads collaborative efforts and the building of interorganizational networks.
  • Functions as an SME for relevant areas of expertise.
  • Identify and drive implementation of organizational improvements, “best practices” project improvements and higher engineering maturity. Drive increased velocity of feature and product delivery through simplification and automation. Identify key metrics and monitor to ensure architecture progression.
  • Participates in professional development and stays current with new test technology and processes while actively seeking to implement new technology.
  • Provides consistent, dependable guidance and mentoring to senior engineers to promote learning, development, and knowledge transfer.
  • Own system level, software related documentation to ensure that all safety, functional and third‑party requirements are captured.
  • Identify and lead complex technical projects.
  • Participates in the interview process for hiring new team members when/if necessary.
Physical Demands
  • Sit; use hands to finger, handle or feel objects, tools, or controls.
  • Stand; walk; reach with hands and arms; and stoop, kneel, crouch, or crawl.
  • Lifting/moving and carrying products weighing up to 40 pounds.
  • Exposure to moving mechanical parts, vibration and/or moderate noise levels.
  • Exposure to hazardous chemicals or other materials.
  • Travel (please specify):
  • Other (please specify): Exposure to ionizing radiation.
Qualifications

Education

  • Preferred Minimum Technical/Advanced Degree: Bachelor’s or Master’s degree in a related field.

Experience

  • Preferred Minimum Technical Degree: 12+ Years
  • Preferred Minimum Technical/Advanced Degree: 10+ Years with Master’s Degree, 8+ Years with PhD
  • Extensive experience in embedded systems development, including RTOS‑based design (e.g., FreeRTOS, QNX, Zephyr), low‑level firmware development, device drivers, and board initialization, with strong expertise in hardware/software integration.
  • Proven experience designing and optimizing real‑time, resource‑constrained systems, including performance tuning, deterministic behavior, and implementation of communication protocols (SPI, I2C, UART, CAN), as well as secure boot and firmware update mechanisms.
    • Extensive experience and demonstrated success in commercial product development with different products over the product lifecycle.
    • Experience in supporting safety‑critical device manufacturing and applicable government regulations such as FDA, FAA, SEC, etc.
    • Demonstrated experience taking ownership of corrective actions.
    • Experience with safety‑critical software systems in a highly regulated environment is beneficial.

Skills

  • Comprehensive, expert knowledge of complex software design principles, algorithms, data structures, design patterns, and multithreading concepts. Ability to expertly implement design patterns and author software requirement specifications.
    • Expert programming skills using C/C++ and Assembler‑level programming languages in an embedded environment.
    • Expert debugging skills; expert in troubleshooting and resolving complex issues.
    • Expert in using and troubleshooting version control software (such as Git, Perforce, Azure Dev Ops, SVN, or other).
    • Expert analytical and problem‑solving skills.
    • Excellent written and verbal communication skills, particularly in communicating complex technical details with both technical and non‑technical audiences. Adapts communication style to suit different audiences. Creates precise, accurate technical documentation.
    • Excellent interpersonal skills – ability to lead and motivate a team; collaborate cross functionally; efficiently direct and coordinate the work of others.
  • Strong contributor to high performing team. Ability to simultaneously manage multiple large‑scale projects. Demonstrated ownership in executing project plans and meeting deadlines.
    • Strong desire to constantly find smarter and better ways to develop our products so we can continue providing the best quality of care to our patients.
    • Passionately dedicated to executing project plans and meeting deadlines.
    • Expert awareness of both local and system‑level impact of code written.
    • Demonstrated skill in leading the process of gathering feedback on requirements and test cases for completeness, accuracy, and ability to implement and test.
    • Demonstrated success in driving departmental best practices and product or process improvements.
    • Demonstrated ownership over component‑level software design.
    • Ability to develop and deliver high quality presentations.
    • Demonstrated growth and success leading and coaching other engineers.
    • Experience in Medical devices development and understanding relevant standards (IEC‑62304, etc.) is beneficial.
    • An understanding of medical imaging/general image processing is beneficial.
    • An understanding of DICOM/HL7 is beneficial.
So why join Hologic?

We are committed to making Hologic the company where top talent comes to grow. For you to succeed, we want to enable you with the tools and knowledge required and provide comprehensive training when you join as well as continued development and training throughout your career. We offer a competitive salary and annual bonus scheme. The annualized base salary range for this role is $139,400 – $232,300 and is bonus eligible.

Equal Opportunity Employer

Hologic, Inc. is proud to be an Equal Opportunity Employer inclusive of disability and veterans.

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