Senior Full Stack Engineer (Java React) | Defense & Cybersecurity | Dedham, MA

🔐 Senior Full Stack Engineer (Java / React)

Mission-Critical Cybersecurity Applications

📍 Location: Dedham, Massachusetts (100% Onsite)
🏭 Industry: Aerospace · Defense · Cybersecurity
🎓 Education: Bachelor’s Degree required
🧠 Level: Mid–Senior
🛡 Security Clearance: Active DoD Secret required at hire
🇺🇸 Citizenship: U.S. Citizenship required
💼 Employment Type: Full-Time | Permanent
✈️ Travel: Occasional
🔁 Relocation: Available

🚀 The Opportunity

A leading national security technology organization is seeking a Senior Full Stack Engineer (Java/React) to help build and evolve mission-critical cybersecurity management applications used in highly secure environments.

This role sits at the heart of a rapidly expanding product line, where software quality, performance, and security are non-negotiable. You’ll work with a cross-functional engineering team developing next-generation encryptor and cyber management platforms, using modern full-stack technologies in a classified setting.

🎯 What You’ll Be Working On

As a Senior Full Stack Engineer, you’ll contribute across the entire application lifecycle, helping design, build, and enhance secure enterprise applications that protect critical systems and data.

You’ll operate at the intersection of backend enterprise Java and modern React-based frontends, while adhering to strict security and reliability standards.

🧩 Key Responsibilities

• Design, develop, and enhance mission-critical cybersecurity applications

• Build scalable backend services using Java / Enterprise Java

• Develop intuitive, secure front-end components using React

• Work with SQL/PostgreSQL databases to support complex application workflows

• Collaborate within Agile, cross-functional teams

• Apply secure coding practices aligned with defense and cybersecurity standards

• Take ownership of features from concept through delivery

• Provide technical guidance and contribute to architectural decisions

🛠 Required Technical Experience

• 5+ years of professional software development experience
  (or Master’s degree + 3 years)

• Strong experience with:

• Java / Enterprise Java (EJBs, Spring, Hibernate)

• JavaScript / React

• SQL or PostgreSQL

• Solid understanding of software engineering principles and best practices

• Experience working in Agile environments

⭐ Nice-to-Have Skills

• WildFly application server

• REST APIs / RESTCONF interfaces

• Material UI

• Secure application development practices

• Public Key Infrastructure (PKI) & digital certificates

• SNMP familiarity

🧠 What Sets You Apart

• Passion for solving complex, high-impact engineering problems

• Ability to define scope, timelines, and technical expectations independently

• Comfortable providing technical leadership without formal people management

• Quick learner who thrives in evolving, high-stakes environments

• Strong collaborator who communicates clearly across teams

🔐 Security Requirements

• Active DoD Secret Clearance required at hire

• Ability to maintain clearance

• U.S. Citizenship required due to classified work

🏢 Work Environment

• Fully onsite role (no remote or hybrid option)

• Secure facility supporting classified programs

• Collaborative, mission-focused engineering culture

🎁 What’s Offered

• Competitive base compensation - $130,000 - $145,000 (Depending on Experience)

• Comprehensive benefits package including:

• Medical, dental, and vision coverage

• 401(k) with company match

• Paid parental leave

• Flexible time-off programs

• Health & wellness initiatives (including on-site fitness options)

• Long-term career growth on national security programs

📌 Candidate Snapshot

Attribute

Details

Role

Senior Full Stack Engineer (Java/React)

Clearance

Active DoD Secret

Location

Dedham, MA (Onsite)

Stack

Java, React, SQL

Experience

5+ years

Industry

Defense / Cybersecurity

Travel

Occasional

💡 Why This Role Matters

This is not just another full-stack role. You’ll be building secure software systems that directly support national defense and cybersecurity missions, where your code has real-world consequences and long-term impact.

Software Engineer (TS/SCI CI Poly) | San Diego, Aurora, Annapolis Junction, Alexandria | $DOE | Full-Time Onsite

💻 Software Engineer – TS/SCI CI Poly Required

📍 Locations: San Diego, CA | Aurora, CO | Annapolis Junction, MD | Alexandria, VA
🏢 Onsite: 100% (Active clearance access required)
🎯 Openings: 10 positions available
🕓 Employment: Full-Time | Permanent

🌟 The Opportunity

Join a high-impact federal technology program supporting mission-critical national security initiatives. As a Software Engineer, you’ll work within an elite agile development team using modern frameworks and DevSecOps best practices to design, build, and deliver cutting-edge enterprise systems that protect and advance U.S. interests worldwide.

This is your chance to contribute to an operationally significant program—developing software solutions that enhance data integrity, security, and performance across large-scale environments. You’ll be surrounded by forward-thinking technologists and have access to continual technical training and certifications to help you stay ahead of the curve.

🧠 Key Responsibilities

• Design, develop, and maintain robust, scalable software solutions in support of national-level mission systems.

• Collaborate within Agile and SAFe environments, participating in sprint planning, reviews, and retrospectives.

• Analyze complex system requirements and produce well-structured, efficient, and reusable code.

• Utilize Behavior Driven Development (BDD) and test automation tools to enhance software reliability and performance.

• Implement and support DevOps pipelines, leveraging tools like Jenkins and version control systems.

• Conduct software debugging, optimization, and tuning to ensure high availability and reliability.

• Author and maintain clear technical documentation and automation scripts to support deployment and testing.

• Collaborate cross-functionally with system engineers, testers, and architects to ensure end-to-end solution integrity.

🧩 Required Qualifications

• Active TS/SCI clearance with CI Polygraph (mandatory)

• Bachelor’s degree in Computer Science or related field (or equivalent relevant experience)

• Strong Java development experience

• Experience with one or more of the following:

• Python, C/C++, SQL, SOAP, WSDL, PERL, PowerShell, VBS, Eclipse, Oracle, Postgres, Jenkins

• Experience with User Interface (UI) development, HTML/XHTML/XML/XSLT, and database structures

• Knowledge of both Windows and Linux environments

• Deep understanding of software engineering principles, algorithms, and secure coding practices

• Strong communication and problem-solving abilities; comfortable working independently and collaboratively

🚀 Preferred Qualifications

• Experience with JEE, Tomcat, WebLogic, or JBoss

• Familiarity with BDD / TDD frameworks (FITNesse, Mockito, Cucumber, Selenium, UFT)

• Secure software development and Layer 7 Policy implementation experience

• Hands-on experience with Scaled Agile Framework (SAFe) or Agile Developer practices (Pair Programming, Refactoring, ATDD)

• Background in requirements decomposition, trade-off analysis, and systems integration

• SAFe Agilest Certification or prior experience in Agile teams preferred

💼 Benefits & Perks

• Competitive total compensation package

• 3 weeks Paid Time Off + 11 Federal Holidays

• Medical, Dental, Vision, Life, and Disability insurance

• 401(k) with up to 4% match + annual profit sharing

• Relocation assistance available

• Continuous technical training and certification support

• Opportunity to work on mission-critical national programs with emerging technology stacks

🎯 Candidate Snapshot

• Experience: 7–10 years in software development (enterprise or government systems)

• Education: Bachelor’s in Computer Science or equivalent experience

• Security Clearance: TS/SCI w/ CI Poly (active)

• Work Environment: 100% onsite – secure facility access required

• Travel: None

This is a career-defining opportunity for software engineers seeking to apply their technical expertise toward high-impact, classified initiatives that shape the future of national defense and intelligence. If you thrive in fast-paced, mission-driven environments and value continuous learning — this is the role for you.