Senior Mobile Developer

Talentify; Tacoma (WA); On-site; USD 120,000 - 180,000; Full time

Job summary

ValidaTek in Tacoma, WA seeks a Senior Mobile Developer to lead the design and development of innovative mobile applications for federal civilian and defense initiatives. You will mentor teammates and drive scalable, high‑performance apps using Swift, Java, or Kotlin.

Proficiency with React Native or Xamarin, strong UI/UX sensibility, and experience with backend integration (Node.js, Django) are required; DoD Public Trust or higher clearance is preferred. Agile leadership is essential.

Qualifications

• Bachelor’s degree in Computer Science or related field, 7+ years mobile development.
• Active DoD Secret clearance preferred; ability to obtain DoD Public Trust.
• Experience with DHA theater is highly preferred.
• Proficiency in Swift, Java, or Kotlin and frameworks like React Native or Xamarin.
• Strong knowledge of mobile design patterns (Material Design, Human Interface Guidelines).
• Leadership and mentoring skills with agile delivery experience.
• Excellent communication for both technical and non-technical stakeholders.

Responsibilities

• Develop and maintain scalable mobile applications using Swift, Java, or Kotlin.
• Utilize React Native or Xamarin to build cross‑platform apps.
• Design UI/UX following mobile design patterns and guidelines.
• Troubleshoot complex issues and ensure optimal performance.
• Lead backend development with Node.js or Django supporting mobile apps.
• Integrate AI tools into the software development lifecycle.
• Collaborate across teams, manage multiple projects, and ensure on‑time delivery.
• Provide leadership and mentorship to junior developers in an agile environment.

Skills

Swift

Java

Kotlin

React Native

Xamarin

Leadership

Agile

Problem solving

Education

Bachelor's degree in CS or related field

Tools

Node.js

Django

PHP

Python

Ruby

Job description

Company Overview

At ValidaTek, we modernize and optimize IT services to solve some of the most critical challenges facing federal civilian and defense agencies. From customers to partners to top-talent employees, ValidaTek puts people first, empowering them to exceed expectations and transform government organizations. Our employees are building purpose-driven careers, not just filling jobs. We bring together people with many different perspectives, experiences, and talents to drive innovation and achieve more together than we can individually. Our commitment to quality and performance optimization is the reason why our IT Service Projects and New Development Projects have been appraised at CMMI Maturity Level 5, positioning us as one of a handful of elite companies to receive the highest form of third-party validation. www.validatek.com

Summary:

We are looking for a highly skilled Senior Mobile Developer to join our team and lead the design and development of innovative mobile applications. The ideal candidate will have deep expertise in mobile development technologies, including proficiency in programming languages like Swift, Java, or Kotlin, and experience with modern mobile frameworks such as React Native or Xamarin. This role requires strong leadership and problem-solving abilities, as well as the capability to design functional, visually appealing user interfaces that adhere to mobile design best practices.

Responsibilities:

• Develop and maintain scalable, high-performance mobile applications using programming languages such as Swift, Java, or Kotlin, ensuring adherence to mobile development standards.
• Utilize mobile development frameworks like React Native or Xamarin to build cross-platform applications that deliver a seamless user experience.
• Design and implement user interfaces that are both visually appealing and highly functional, following mobile design patterns such as Material
• Design or Human Interface Guidelines.
• Troubleshoot and debug complex technical issues, providing efficient solutions to maintain optimal application performance.
• Lead backend development efforts, working with server-side languages such as PHP, Python, Ruby, or Java, and frameworks like Node.js or Django to support mobile app functionality.
• Integration of AI tools into the software development life cycle.
• Collaborate with cross-functional teams to define technical requirements, manage multiple projects simultaneously, and ensure on-time delivery of mobile solutions.
• Provide leadership and mentorship to junior developers, fostering a collaborative and productive team environment.
• Apply agile development methodologies, leading project planning, estimation, and tracking to ensure project milestones are met.
• Communicate complex technical concepts effectively to non-technical stakeholders, ensuring alignment with project goals.

Qualifications:

• Bachelor’s degree in a Computer Science related field and 7+ years of mobile development experience. Experience may be substituted in lieu of degree.
• Active DoD Secret clearance preferred. Must be able to obtain a DoD Public Trust
• Experience within the DHA theater – highly preferred.
• Proficiency in mobile programming languages such as Swift, Java, or Kotlin.
• Experience with mobile development frameworks like React Native or Xamarin.
• Strong understanding of mobile development standards, design patterns, and best practices (e.g., Material Design, Human Interface Guidelines).
• Proven experience in designing and developing user interfaces that are both functional and visually appealing.
• Solid problem-solving and debugging skills, with the ability to resolve technical challenges efficiently.
• Experience with backend development, including PHP, Python, Ruby, or Java, and backend frameworks like Node.js or Django.
• Strong leadership and mentoring skills, with experience guiding and supporting junior developers.
• Ability to manage multiple projects and deadlines effectively in an agile development environment.
• Excellent communication skills, with the ability to convey technical concepts to both technical and non-technical audiences.

This position offers an exciting opportunity for a Senior Mobile Developer to lead cutting-edge projects in a fast-paced, collaborative environment, driving the creation of innovative mobile applications for a wide range of users.

Salary Disclosure

Actual salary will be based on a variety of factors including but not limited to experience, geographic location, contract affordability, internal equity, education, and certifications. The upper end of the salary range may be reserved for individuals who have demonstrated tenure with the company, seniority, and proven excellent performance. This includes factors such as education, certifications, and extensive/unique experience beyond what is required.

EEO Statement

ValidaTek is an Equal Opportunity Employer. All qualified applicants will be considered without regard to disability, protected veteran status, or any other status protected by federal, state, or local laws. Applicants who are selected for employment will be required to verify authorization to work in the United States. Offers of employment will be contingent upon passing a post-offer background check.

Qualifications

Education

Preferred

Bachelors

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities
This employer is required to notify all applicants of their rights pursuant to federal employment laws. For further information, please review the Know Your Rights notice from the Department of Labor.