SOFTWARE ENGINEER - UI - 7+ yrs of Experience - TS/SCI w/Poly clearance is required - ID

📍 Job Overview

Job Title: Software Engineer - UI

Company: Halogen Engineering Group, Inc

Location: Fort Meade, MD

Job Type: Full-Time

Category: Software Engineering / UI Development

Date Posted: May 04, 2026

Experience Level: 7+ Years

Remote Status: On-site

🚀 Role Summary

• This role focuses on enhancing and developing sophisticated User Interface (UI) prototypes and full-scale software systems for complex analytical tasks and large data sets.

• The position involves the full software development lifecycle, from initial design and prototyping to deployment, maintenance, and enhancement of diverse software systems.

• A key aspect is the potential to transition an initial UI prototype into an externally accessible interface, requiring a strong understanding of user experience and system scalability.

• The role may involve serving as a technical team lead, guiding development efforts and ensuring adherence to project constraints and best practices.

📝 Enhancement Note: While the title is "Software Engineer - UI," the responsibilities extend beyond typical UI development to encompass broader software engineering principles, including system design, algorithm development, and data manipulation, particularly within the context of government contracting and intelligence work.

📈 Primary Responsibilities

• Design, develop, test, deploy, document, maintain, and enhance complex and diverse software systems, focusing on UI prototypes and their evolution into production-ready interfaces.

• Analyze user requirements to derive software design and performance requirements, ensuring the UI meets functional and user experience standards.

• Debug existing software and correct defects, with a particular emphasis on UI-related issues and system performance.

• Design and code new software or modify existing software to add new features, specifically focusing on enhancing the user interface and its underlying functionalities.

• Integrate existing software components into new or modified systems, ensuring seamless operation and data flow, especially for external availability plans.

• Develop simple data queries for existing or proposed databases or data repositories to support UI functionality and data visualization.

• Utilize software development and software design methodologies, including Agile processes, appropriate to the development environment.

• Perform code reviews and test software components for adherence to design requirements, documenting test results and resolving software problem reports.

• Provide specific input to the software components of system design, including hardware/software trade-offs, software reuse, and the use of Open Source Software (OSS) or Commercial Off-The-Shelf (COTS) software.

• Develop and execute test procedures for software components, ensuring the quality and reliability of the UI and associated systems.

• Design, develop, and modify software systems using scientific analysis and mathematical models to predict and measure outcomes and consequences of design decisions.

• Serve as a technical lead for one or more software development teams, overseeing tasks, delegating responsibilities, and monitoring performance to ensure project completion.

📝 Enhancement Note: The core responsibility of enhancing a Streamlit UI prototype into a scalable, potentially external interface is a significant undertaking that requires not only UI/UX skills but also robust backend integration, security considerations, and deployment strategy. The mention of "processing-intensive analytics," "novel algorithm development," and "manipulation of extremely large data sets" indicates that the UI will be a front-end to complex data processing and analysis systems.

🎓 Skills & Qualifications

Education:

• Master’s degree in computer science or a related discipline from an accredited college or university, plus five (5) years of relevant software engineering experience.

• OR Bachelor’s degree in computer science or a related discipline from an accredited college or university, plus seven (7) years of relevant software engineering experience.

Experience:

• Minimum of 7+ years of progressive software engineering experience, with a strong focus on UI development and enhancement.

• Proven experience in designing, developing, testing, and deploying complex software systems.

• Experience working with large data sets, analytics, and algorithm development is highly beneficial.

• Experience in Unix environments and shell scripting is required.

Required Skills:

• Current TS/SCI with Polygraph clearance is mandatory.

• Proficiency in Python: Recent software development experience using Python is a requirement. Familiarity with Streamlit, a Python framework for building interactive web applications, is essential.

• Proficiency in Java: Recent software development experience using Java is a requirement. Experience with Java 2 Enterprise Edition (J2EE) applications and the Eclipse IDE is a plus.

• Front-End Development: Experience developing front-end applications using TypeScript, HTML, and CSS is required.

• JavaScript Frameworks: Experience with JavaScript frameworks such as React, Angular, and Vue is required.

• Data Wrangling & Preprocessing: Experience with data wrangling and preprocessing using tools like pandas and NumPy is required.

• Data Formats: Experience working with structured, semi-structured, and unstructured data formats such as Parquet, JSON, CSV, and XML is required.

• Version Control: Experience with Git Source Control System is required.

• Operating Systems: Experience using the Linux Command Line Interface (CLI) and Linux tools is required.

• Scripting: Experience developing Bash scripts to automate manual processes is required.

• Agile Development: Experience with agile development processes is required.

Preferred Skills:

• Big Data Technologies: Familiarity with Distributed Big Data processing engines, including Apache Spark.

• Data Analysis Tools: Experience using Jupyter Notebook for data analysis and exploration.

• Data Quality: Familiarity with data quality concepts, data validation, and anomaly detection.

• Orchestration Frameworks: Experience using orchestration frameworks such as Spring and Kafka.

• Queue Management Systems: Familiarization with queue management systems.

• Workflow Orchestration: Experience using Apache Airflow (DAG design, scheduling, operators, sensors) to orchestrate, schedule, and monitor complex workflows.

• SQL Technologies: Experience with SQL technologies such as MySQL, MariaDB, and PostgreSQL for querying, joining, and aggregating large datasets.

• HPC Job Scheduling: Familiarity with HPC Job Scheduling tools including Slurm.

• Collaboration Tools: Experience using collaboration and software development tools, such as the Atlassian Tool Suite (JIRA, Confluence).

• Container Technologies: Experience with container technologies, such as Docker.

• Cloud Development: Experience with cloud-based solutions and technologies.

• Event-Driven Architectures: Development of event-driven or data-driven analytics.

📝 Enhancement Note: The extensive list of required and preferred skills points to a role that demands a broad and deep technical skillset. Candidates should be prepared to demonstrate proficiency across the full stack, from UI development to backend data processing and system integration, within a secure government environment. The emphasis on recent Python and Java experience, combined with specific framework knowledge (Streamlit, React/Angular/Vue), indicates a need for modern development practices.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• UI/UX Design & Development: Showcase examples of user interfaces designed and developed, highlighting the transition from concept to functional application, ideally demonstrating the evolution of a prototype.

• Process Optimization & Automation: Include case studies demonstrating how software development processes were improved, automated, or made more efficient, particularly in areas related to UI deployment or data handling.

• System Integration & Scalability: Provide examples of how software systems were integrated, with a focus on solutions designed for scalability and potential external availability, reflecting the project's long-term vision.

• Data Handling & Analytics: Present projects that involved working with structured, semi-structured, and unstructured data, showcasing data wrangling, preprocessing, and the development of analytical capabilities accessible via a UI.

• Security & Compliance: For government contracting roles, if possible, anonymized examples demonstrating adherence to security protocols, data handling policies, and compliance requirements within development projects are highly valued.

Process Documentation:

• Workflow Design & Optimization: Demonstrate experience in designing and documenting software development workflows, including Agile methodologies, version control integration (Git), and CI/CD practices.

• System Design & Architecture: Provide examples of system design documentation, illustrating how requirements were translated into technical specifications, including UI/backend interactions and data flow diagrams.

• Testing & Quality Assurance: Showcase documentation related to test procedures, test results, and defect resolution for software components, particularly for UI elements and system integrations.

📝 Enhancement Note: For this role, a portfolio is crucial. Candidates should prepare to present detailed case studies on projects where they significantly enhanced a UI or system, automated processes, or worked with complex data. The ability to articulate the problem, the solution (including specific technologies and methodologies), and the measurable results (efficiency gains, performance improvements, user satisfaction) will be key. Given the government context, demonstrating an understanding of secure development practices and compliance is also vital.

💵 Compensation & Benefits

Salary Range:

The projected annual compensation range for this position is $234,000 to $241,000 USD.

Benefits:

• Medical Plans: Three options available through CareFirst:

  • Two Platinum PPO Plans with $0 Deductible.
  • One HSA Plan with a $1,500 Deductible.
  • Halogen pays 100% of Medical Premium Costs up to $25,000 annually.
  • Eligibility for the CareFirst Wellness Rewards Program.

• Dental Plan: Through Guardian Insurance; Halogen pays 50% of the plan costs.

• Vision Plan: Through Guardian Insurance; Halogen pays 100% of the plan costs.

• 401K Retirement Plan: Company contributes 10% automatically, vested and paid in each pay period.

• Life Insurance, AD&D: Coverage provided.

• Short and Long Term Disability Coverage: Provided.

• Paid Time Off (PTO): 20 days per year.

• Holidays: 6 Federal Holidays and 5 Floating Holidays.

• Bonuses: Performance and billable hour-based bonuses may be awarded.

Working Hours:

• Standard working hours are typically 40 hours per week, based on a day shift schedule.

• While the role is on-site, the company's benefits package, including PTO and floating holidays, offers flexibility.

📝 Enhancement Note: The salary range provided is at the higher end for software engineering roles, reflecting the critical TS/SCI with Polygraph clearance requirement, the extensive experience needed, and the specialized nature of the work with Halogen Engineering Group. The comprehensive benefits package, especially the 100% medical premium coverage up to $25,000 and the 10% 401K contribution, significantly enhances the total compensation value. The mention of "billable hours" for bonuses suggests a government contracting environment where performance is tied to contract fulfillment.

🎯 Team & Company Context

🏢 Company Culture

Industry: Government contracting, specifically focused on providing engineering and software solutions to defense and intelligence agencies. This industry demands high levels of security, precision, and reliability.

Company Size: Halogen Engineering Group, Inc. is likely a mid-sized to large company within the government contracting sector, given the specialized nature of its services and the scale of projects it undertakes.

Founded: The founding date is not explicitly provided, but the company's specialization suggests a history of serving government clients, likely with a focus on evolving technological needs.

Team Structure:

• The Software Engineering team is likely structured around specific projects or functional areas, with UI development and complex system engineering being key specializations.

• Reporting structure will likely involve a Project Manager or Technical Lead, with clear lines of communication to government stakeholders.

Methodology:

• Data-Driven Development: Emphasis on using data analysis and metrics to inform design decisions, validate requirements, and measure system performance.

• Agile & Iterative Development: Adoption of Agile methodologies to manage complex projects, allowing for flexibility and iterative improvements, particularly in UI prototyping and feature development.

• Secure Development Practices: Strict adherence to security protocols, coding standards, and compliance requirements mandated by government clients to protect sensitive information and systems.

Company Website: https://halogeneng.com/

📝 Enhancement Note: Halogen Engineering Group operates within a highly specialized and regulated sector. The company culture will likely prioritize mission accomplishment, technical excellence, and adherence to stringent security protocols. Candidates should expect a professional environment where attention to detail and a commitment to delivering secure, high-quality software are paramount.

📈 Career & Growth Analysis

Operations Career Level: This role is positioned as a senior-level Software Engineer, demanding significant experience and the ability to operate with a high degree of autonomy. The potential for team leadership elevates it beyond a standard individual contributor role.

Reporting Structure: The engineer will likely report to a Project Manager or a Lead Software Engineer, with direct collaboration and reporting to government client representatives for project specific tasks and progress.

Operations Impact: This role has a direct impact on the operational capabilities of government agencies. The UI developed will enable users to interact with and leverage complex data and analytical systems, directly influencing mission success, decision-making, and operational efficiency. The enhancement of a prototype into a production system signifies a significant contribution to the agency's technological infrastructure.

Growth Opportunities:

• Technical Specialization: Deepen expertise in UI/UX development, specific programming languages (Python, Java), front-end frameworks (React, Angular, Vue), and big data technologies (Spark).

• Leadership & Mentorship: Opportunity to serve as a technical team lead, mentor junior engineers, and guide project development, building leadership skills.

• Advanced Security & Systems Engineering: Gain exposure to and expertise in highly classified systems, advanced cybersecurity practices, and complex system integration within the government sector.

• Project Management & Architecture: Potential to move into roles involving project management, system architecture design, or specialized technical consulting within the intelligence community.

📝 Enhancement Note: The career path for a senior engineer in this domain often involves progressing into technical leadership, architecture, or specialized consulting roles. The TS/SCI with Polygraph clearance is a significant career asset within the government contracting space, opening doors to numerous high-impact, high-security projects.

🌐 Work Environment

Office Type: The role is strictly On-site, indicating a requirement for the candidate to work from the specified Fort Meade, MD location. This is common for roles requiring high-level security clearances and classified work.

Office Location(s): Fort Meade, MD. This location is a major hub for U.S. intelligence agencies, suggesting the work will be in close proximity to or directly supporting these entities.

Workspace Context:

• Secure Environment: The workspace will adhere to strict security protocols, likely involving controlled access, secure networks, and potentially cleared personnel only areas.

• Collaborative Setup: While on-site, the environment will likely facilitate collaboration through team spaces, meeting rooms, and access to necessary development tools and technologies.

• Technology Resources: Access to robust computing resources, development tools, and potentially specialized hardware/software required for government projects will be provided.

Work Schedule:

• The standard work schedule is a day shift, typically 40 hours per week.

• Given the on-site nature and potential project demands, occasional overtime or adjusted hours might be necessary, though the PTO and holiday benefits provide structured time off.

📝 Enhancement Note: The on-site requirement is non-negotiable due to security clearance mandates. Candidates must be prepared to work full-time from the Fort Meade location. The work environment will be highly professional and security-conscious, reflecting the sensitive nature of the projects.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A review of your resume and qualifications, with a strong emphasis on verifying the TS/SCI with Polygraph clearance and overall experience against the requirements.

• Technical Interview(s): Expect in-depth technical discussions covering your experience with Python, Java, front-end frameworks (TypeScript, React/Angular/Vue), data manipulation (pandas, NumPy), Linux/Bash scripting, and potentially system design principles. Be prepared to discuss specific projects and your role in them.

• Portfolio Presentation: A dedicated session where you will present your portfolio, showcasing relevant UI/UX projects, process improvements, and data handling examples. Focus on demonstrating impact and technical problem-solving.

• Security & Background Check: A rigorous process is expected given the TS/SCI with Polygraph clearance requirement. This will involve extensive background checks and interviews.

• Final Interview: A discussion with hiring managers and potentially government stakeholders to assess cultural fit, communication skills, and overall suitability for the role and client environment.

Portfolio Review Tips:

• Curate Strategically: Select 2-3 of your most relevant projects that best showcase your UI development, front-end expertise, data handling capabilities, and any experience with prototyping or system enhancement. Prioritize projects that demonstrate a clear problem, a robust solution, and measurable results.

• Focus on Impact: For each project, clearly articulate the challenge, your specific contributions, the technologies used, and the outcomes achieved (e.g., improved user efficiency by X%, reduced processing time by Y%, successfully launched a new feature). Quantify results whenever possible.

• Demonstrate Process: Explain your development process, including how you approached requirements analysis, design choices, testing, and any automation or optimization efforts. Highlight your experience with Agile and Git.

• Highlight Security Awareness: If possible, discuss how you incorporated security considerations into your development process, even in anonymized examples.

Challenge Preparation:

• Coding Exercises: Be prepared for live coding challenges or take-home assignments focusing on Python, Java, or JavaScript, likely involving data manipulation, algorithm implementation, or UI component development.

• System Design Scenarios: Practice discussing how you would design a scalable UI for a complex data system, considering factors like data flow, user roles, performance, and security.

• Behavioral Questions: Prepare to answer questions about teamwork, problem-solving, handling challenges, and your experience working in demanding environments. Use the STAR method (Situation, Task, Action, Result).

📝 Enhancement Note: The interview process is heavily weighted towards technical proficiency and security clearance. Candidates must be able to articulate their technical contributions clearly and demonstrate a deep understanding of the required technologies. The portfolio presentation is a critical component, serving as a tangible demonstration of skills and experience.

🛠 Tools & Technology Stack

Primary Tools:

• Programming Languages: Python (recent experience required), Java (recent experience required), TypeScript, HTML, CSS, Bash Scripting.

• UI/Frontend Frameworks: React, Angular, Vue (experience required for at least one).

• Prototyping Tool: Streamlit (required for UI prototype enhancement).

• Development Environment: Unix/Linux CLI, Eclipse IDE (for Java).

• Version Control: Git (required).

• Containerization: Docker (preferred).

Analytics & Reporting:

• Data Manipulation: Pandas, NumPy (required).

• Big Data Processing: Apache Spark (familiarity required), Distributed Big Data processing engines.

• Data Visualization/Exploration: Jupyter Notebook (experience required), potentially Tableau or similar for reporting (not explicitly listed but common).

• Databases: SQL technologies (MySQL, MariaDB, PostgreSQL) for querying, joining, and aggregating large datasets (preferred).

CRM & Automation:

• Workflow Orchestration: Apache Airflow (preferred), Kafka (experience with orchestration frameworks).

• Collaboration & Project Management: Atlassian Tool Suite (JIRA, Confluence) (preferred).

• Queue Management: Familiarization with queue management systems.

📝 Enhancement Note: The technology stack is a blend of modern web development tools and robust data processing/backend technologies, reflecting the need to build a sophisticated UI for complex analytical systems. Candidates should be ready to discuss their proficiency and experience with each of these tools, especially how they integrate them to solve problems.

👥 Team Culture & Values

Operations Values:

• Mission Focus: A strong commitment to supporting the mission objectives of government clients, prioritizing task completion and system reliability.

• Technical Excellence: Dedication to high-quality software development, code integrity, and continuous learning to stay abreast of evolving technologies.

• Security & Integrity: Upholding the highest standards of security, confidentiality, and ethical conduct, essential for working with classified information.

• Collaboration & Teamwork: Fostering a collaborative environment where team members share knowledge, support each other, and work together to overcome challenges.

• Problem-Solving: A proactive and analytical approach to identifying and resolving complex technical issues, with an emphasis on finding efficient and effective solutions.

Collaboration Style:

• Cross-Functional Integration: Expect close collaboration with systems engineers, cybersecurity experts, and potentially end-users to ensure the UI and underlying systems meet all requirements.

• Process Review Culture: An environment that encourages constructive feedback on code, designs, and processes to drive continuous improvement.

• Knowledge Sharing: Active participation in team meetings, code reviews, and documentation efforts to share expertise and best practices across the team.

📝 Enhancement Note: The culture will be professional, security-conscious, and mission-oriented. Team members are expected to be self-starters, technically proficient, and capable of working effectively within a highly regulated and sensitive environment. A strong sense of responsibility and a commitment to quality are paramount.

⚡ Challenges & Growth Opportunities

Challenges:

• Navigating Complex Security Requirements: Adapting to and strictly adhering to the stringent security protocols and clearance requirements inherent in government contracting.

• Evolving Technology Landscape: Keeping pace with rapid advancements in UI technologies, data processing, and security practices within the defense and intelligence sectors.

• Large-Scale Data & Analytics: Developing and maintaining performant UIs that effectively present and interact with massive datasets and complex analytical models.

• Balancing Prototype Enhancement with Production Readiness: Successfully transforming an initial UI prototype into a robust, scalable, and secure system suitable for external availability and long-term use.

Learning & Development Opportunities:

• Advanced Security Training: Opportunities to deepen knowledge in cybersecurity, secure coding practices, and compliance relevant to government contracts.

• Specialized Technology Exposure: Gaining hands-on experience with cutting-edge big data technologies, cloud platforms, and advanced analytics tools used in government operations.

• Leadership Development: Potential to take on team lead responsibilities, mentoring junior engineers and contributing to project strategy.

• Industry Certifications: Support for obtaining relevant certifications that enhance expertise in areas like cloud computing, cybersecurity, or specific programming languages.

📝 Enhancement Note: This role presents significant challenges, particularly related to security and the complexity of the systems being developed. However, these challenges are balanced by substantial growth opportunities, allowing engineers to develop highly specialized skills and advance their careers within a critical sector.

💡 Interview Preparation

Strategy Questions:

• "Describe a complex UI you've developed from a prototype. What were the key challenges in scaling it for production, and how did you address them?" (Focus on Streamlit experience, scalability, and problem-solving.)

• "How would you approach designing a secure and user-friendly interface for a system that processes sensitive, large-scale datasets? Walk us through your thought process, considering technologies and security implications." (Assess system design, security awareness, and UI/backend integration.)

Company & Culture Questions:

• "What attracts you to working for Halogen Engineering Group, and specifically on projects supporting the intelligence community?" (Research the company's mission and values.)

• "How do you handle working under strict security protocols and with classified information?" (Demonstrate understanding and commitment to security.)

Portfolio Presentation Strategy:

• Structure Your Narrative: For each project, clearly define the problem, your solution (including specific technologies and your role), and the quantifiable results. Use a story-telling approach to make it engaging.

• Quantify Impact: Emphasize metrics and data whenever possible. For UI projects, this could be user adoption rates, task completion times, or error reduction. For process improvements, focus on efficiency gains or time savings.

• Technical Depth: Be prepared to dive deep into the technical aspects of your projects, explaining why you made certain technology choices and how you overcame specific technical hurdles.

• Tailor to the Role: Highlight projects that align with the job description's requirements, especially UI development, Python/Java experience, data handling, and any experience with prototyping or system enhancement.

📝 Enhancement Note: Interview preparation should heavily focus on the specific technologies listed, especially Python, Java, Streamlit, and modern front-end frameworks. Candidates must be ready to articulate their experience with TS/SCI with Polygraph clearance and demonstrate an understanding of the government contracting environment.

📌 Application Steps

To apply for this operations position:

• Submit your application through the provided application link on the Halogen Engineering Group careers portal.

• Customize Your Resume: Tailor your resume to highlight your 7+ years of experience, focusing on UI development, Python, Java, front-end frameworks (TypeScript, React/Angular/Vue), data handling (pandas, NumPy), Linux/Bash scripting, and any experience with Streamlit or large-scale data projects. Explicitly mention your TS/SCI with Polygraph clearance.

• Prepare Your Portfolio: Curate 2-3 strong projects that showcase your UI development skills, process automation, and data wrangling capabilities. Be ready to present these with clear explanations of the problem, solution, technologies used, and measurable outcomes.

• Practice Technical Explanations: Rehearse explaining your experience with the required technologies and methodologies (Python, Java, Streamlit, React, Git, Linux CLI, Bash). Be prepared for coding challenges and system design discussions.

• Research Halogen Engineering Group: Understand the company's mission, its role in government contracting, and its commitment to security and technical excellence. This will help you tailor your responses and demonstrate genuine interest.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and operations industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.