Web Application Software Engineer

Remote from: USA
Salary, yearly, USD: 137,100 - 244,100
Department: Software Engineering
Employment type: Full Time,
Job posted: 14 May 2026
Apply before: 14 Jun 2026
Experience level: Midweight
Views / Applies: 13 / 2

ManTech delivers technology-driven innovation, develops game-changing solutions, and delivers mission-focused technologies for defense and federal civilian agencies.

Defense & Space
1968

Actively Hiring

AI Summary

This role is for a Web Application Software Engineer at MANTECH, supporting the TAK ecosystem for defense and mission operations. The engineer will design, develop, and maintain web applications with front-end and back-end components, integrating with tactical systems. The position requires experience with JavaScript, HTML, CSS, modern frameworks, and backend languages like Java or Python. It also demands knowledge of TAK or similar systems, and a Secret clearance is required. This is a fully remote, future opportunity with a focus on real-time data visualization and DoD security standards.

Job Complexity

Easy Hard

AI Insight The role requires a blend of front-end and back-end skills, experience with tactical systems like TAK, and understanding of DoD security and data strategies, which adds complexity. The need for a Secret clearance and potential for SCI eligibility increases the difficulty.

Salary Analysis

AI Insight The offered salary range of $137,100-$244,100 is well above the typical US market range for a Web Application Software Engineer with 3+ years experience, which is $100,000-$180,000. This suggests a competitive compensation package, likely due to the specialized nature (TAK ecosystem, defense sector) and clearance requirements.

Key Skills

JavaScript HTML CSS Java Python TAK Docker Kubernetes Agile API Integration

Cover Letter Sample

I am writing to express my strong interest in the Web Application Software Engineer position at MANTECH. With a Bachelor's degree in Computer Science and over 3 years of experience in web development, I have honed my skills in JavaScript, HTML, CSS, and modern frameworks, as well as backend programming with Java and Python. My experience integrating APIs and working with SQL/NoSQL databases aligns well with your requirements.

I have a particular interest in tactical systems and have worked with TAK ecosystem in a previous role, developing plugins and real-time data visualization tools. I am also familiar with DoD security standards and have an active Secret clearance, making me well-prepared to contribute to your mission.

I am excited about the opportunity to join MANTECH and contribute to innovative projects that support our nation's defense. Thank you for considering my application.

Possible Interview Questions

Can you describe your experience with the TAK ecosystem? Have you developed any plugins or integrated applications with TAK servers?

I have worked with TAK in a previous role, developing plugins that provided real-time situational awareness data. I integrated TAK servers with custom web applications using the TAK API, enabling data visualization and decision support. I also ensured compliance with TAK standards and patterns.

How would you design a web application that functions in degraded, intermittent, and limited (D-DIL) environments?

I would implement offline-first architecture using service workers and local caching (e.g., IndexedDB). The application would prioritize critical data synchronization when connectivity is available, and use compression and data reduction techniques to minimize bandwidth usage. I would also design the UI to gracefully handle latency and data staleness.

Explain how you would implement identity-based access control following NIST SP 800-207 Zero Trust principles.

I would implement micro-segmentation and least-privilege access using a policy enforcement point (PEP) that evaluates every request based on user identity, device posture, and context. This involves integrating with an identity provider (IdP) for authentication, using attribute-based access control (ABAC), and logging all access for continuous monitoring.

Describe your experience with containerization tools like Docker and Kubernetes. How have you used them in a CI/CD pipeline?

I have used Docker to containerize web applications and their dependencies, ensuring consistency across environments. I used Kubernetes for orchestration, managing deployments, scaling, and service discovery. In CI/CD pipelines (e.g., Jenkins, GitLab CI), I automated building Docker images, running tests, and deploying to Kubernetes clusters.

How do you approach integrating multiple data sources (APIs, databases) into a single web application for real-time data visualization?

I would use a backend service (e.g., Node.js or Python) to aggregate data from various APIs and databases, transforming it into a unified format. For real-time updates, I would implement WebSockets or Server-Sent Events. The front-end would use a reactive framework (e.g., React) to update visualizations dynamically. I would also handle error handling and data validation.

General information

Requisition # R67619 Locations USA-Remote Work Posting Date 05/14/2026 Security Clearance Required Secret Remote Type Fully Remote Time Type Full time

Description & Requirements

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with MANTECH!
***This is for a future opportunity***

MANTECH seeks a motivated, career and customer-oriented Web Application Software Engineer to join our team.

The Web Application Software Engineer will leverage their strong technical background and knowledge to design, develop, and integrate web-based applications supporting tactical situational awareness and mission operations. You will build user-facing and service-based web applications that integrate with the TAK ecosystem to provide real-time data access, visualization, and decision support.

Responsibilities include but are not limited to:

Designing, developing, and maintaining web applications supporting the TAK ecosystem while implementing TAK standards and integration patterns.
Developing front-end components using JavaScript, HTML, CSS, and modern frameworks alongside back-end services and APIs.
Integrating applications with TAK servers, APIs, and external data sources to enable real-time and near-real-time data visualization.
Developing applications that function in degraded, denied, intermittent, and limited (D-DIL) environments while optimizing for low bandwidth.
Implementing application-level controls aligned to DoD Zero Trust Strategy and NIST SP 800-207 to enforce identity-based access control.
Working with all stakeholders to ensure complete and functioning systems that meet VAULTIS principles for data visibility and accessibility.
Supporting continuous integration and deployment pipelines while applying Agile methodologies to deliver mission capabilities.

Minimum Qualifications:

Bachelor’s degree in Computer Science, Software Engineering, or related field with 3+ years of experience in web or application development.
Experience with JavaScript, HTML, CSS, and modern web frameworks.
Experience with backend programming languages such as Java, Python, or similar.
Experience integrating with APIs and both SQL and NoSQL databases.
Experience with version control using Git and containerization tools like Docker or Kubernetes.
Experience with TAK or similar tactical systems within a large team environment.

Preferred Qualifications:

Experience supporting USSOCOM / SOF, DoD, or Intelligence Community environments.
Experience developing TAK applications or plugins and real-time data processing.
Familiarity with DoD Data Strategy (VAULTIS) and DoDI 8320 data sharing standards.
Active Top Secret with SCI eligibility is preferred.

Clearance Requirements:

Active Secret clearance is required.

Physical Requirements:

Must be able to remain in a stationary position 50%.
Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
Frequently communicates with co-workers, management, and customers, which may involve delivering presentations.
Must be able to exchange accurate information in these situations.

The projected compensation range for this position is $137,100.00-$244,100.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at [email protected] and provide your name and contact information.

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