Sr Front End Engineer SME

Applied Information Sciences, Inc.; Washington, Northern (District of Columbia, KY); Hybrid; USD 117,000 - 177,000; Full time

Job summary

Applied Information Sciences, Inc. is seeking a Senior Front End Engineer SME to architect, build, and optimize modern user interfaces for mission‑critical applications.

You will lead scalable front‑end solutions using React, TypeScript, JavaScript, and AWS-hosted environments, ensuring seamless integration with .NET services. You will mentor mid‑level developers, set engineering standards, and champion accessibility and performance.

Qualifications

• Active Top-Secret clearance; SCI eligibility.
• 8+ years frontend experience with React, JavaScript, TypeScript, and Node.js.
• Advanced HTML, CSS, Sass, and responsive design skills.
• Experience consuming REST APIs and handling JSON/XML data.
• Proficient with Git and GitLab for source control and reviews.
• Ability to design, refactor, and maintain scalable frontend architectures in AWS.
• Familiar with YAML and CI/CD pipelines (GitLab CI preferred).
• Experience integrating with .NET APIs or full-stack environments.

Responsibilities

• Lead design and development of responsive, high‑performance UIs using React, TypeScript, HTML, and CSS.
• Architect modular, scalable UI components and libraries aligned with modern standards.
• Mentor mid‑level and junior frontend developers, reviewing code and coaching.
• Integrate frontend with .NET back‑end services via REST APIs.
• Drive client‑side state management, performance tuning, and accessibility.
• Collaborate with designers, backend engineers, and product owners for end‑to‑end functionality.
• Establish coding standards, quality controls, and reviews across the frontend codebase.
• Use Git and GitLab for version control, branching, and merge requests; oversee CI/CD.
• Troubleshoot UI issues across environments, browsers, and platforms; provide root‑cause analysis.
• Operate in AWS cloud environments; support deployments and environment troubleshooting.

Skills

React

TypeScript

JavaScript

Node.js

AWS

REST APIs

Mentoring

Frontend architecture

Tools

Git

GitLab

CI/CD

AWS

Jira

Job description

## Sr Front End Engineer SMEApply: Hybrid: Client Site - Washington, D.C.: Full time: Posted 3 Days Ago: JR2026001358# **Why AIS?**### When you join AIS, you’re joining a mission-driven team that’s passionate about making a difference. You’ll work on projects that matter, alongside industry-leading experts, in an environment that fosters innovation, driving client success, and empowering our team to make a lasting impact. As an employee-owned company, we value collaboration, inclusivity, continuous growth, and shared success.* **Employee Ownership**: Your contributions directly impact the company’s success, and you share in its achievements.* **Continuous Learning**: Access to resources, training, and mentorship to support your professional growth.* **Inclusive Culture**: A workplace where diversity is celebrated, and everyone’s voice is valued.* **Mission-Driven Work**: Engage in projects that make a meaningful difference for our clients and communities.# **What are we looking for?**### At AIS, we're looking for more than just skills - we're looking for driven individuals who are passionate about making a difference, eager to grow, and aligned with our core principles.# **Working@AIS**At AIS, we are dedicated to providing our employees with diverse opportunities to grow their careers while supporting a variety of impactful projects. For this position, we are seeking a talented individual to join AIS as a Lead Software Engineer.* **Core Knowledge & Skills:** Operates independently or as a team lead, selects appropriate persistence technologies (e.g., EF, Dapper), defines source control strategies, and designs subsystem infrastructure.* **Work & Complexity:** Tackles complex problems with thorough analysis, manages cross-functional delivery, and improves system reliability and scalability.* **Quality & Independence:** Consistently meets deadlines even under challenging conditions, enforces standards through detailed reviews, and establishes productivity benchmarks for the team.* **Teamwork & Communication:** Provides functional leadership by setting objectives, organizing resources, resolving conflicts, and engaging confidently with both internal and external stakeholders.* **Consulting & Engagement:** Troubleshoots advanced client issues, supports requirements gathering, and contributes to vendor presentations or proposal activities.As your initial project assignment, you will support the unique needs of our client as a Sr Front End Engineer SME.### **Project Summary**As a Senior Front‐end Developer, you will play a pivotal role in architecting, building, and optimizing modern user interfaces that support mission‐critical applications. You will lead the development of scalable, high‐performance front‐end solutions using React, TypeScript, JavaScript, Node.js, and AWS‐hosted environments, ensuring seamless integration with .NET back‐end services. In this role, you will mentor mid‐level developers, set engineering standards, and champion best practices in code quality, accessibility, and performance. You will collaborate closely with designers, back‐end engineers, product owners, and mission stakeholders to deliver intuitive, secure, and reliable user experiences that meet evolving customer and program needs. Drawing on deep technical expertise and strong problem‐solving skills, you will help guide architectural decisions, drive continuous improvement, and ensure front‐end components operate effectively within enterprise‐grade systems.### **Key Responsibilities**• Lead the design and development of responsive, high-performance user interfaces using Node.js, React, JavaScript, TypeScript, HTML, and CSS• Architect modular, maintainable, and scalable UI component libraries aligned with modern engineering standards• Mentor and provide technical guidance to mid level and junior frontend developers, including reviewing code, coaching on best practices, and supporting skill development• Integrate frontend applications with backend .NET services using REST APIs, JSON, and XML• Drive client-side state management patterns, rendering optimization, and performance tuning for enterprise-grade applications• Collaborate closely with UX/UI designers, backend engineers, and product owners to ensure seamless end-to-end functionality• Establish and enforce coding standards, accessibility guidelines, and quality controls across the frontend codebase• Use Git and GitLab for version control, branching strategies, and merge request workflows• Troubleshoot complex UI issues across environments, platforms, and browsers, providing root-cause analysis and actionable remediation• Operate within AWS cloud-hosted environments and support integration, deployments, and environment troubleshooting• Promote a culture of high-quality engineering through code reviews, design reviews, and knowledge-sharing sessions• Support planning, estimation, and architectural discussions for new features and modernization efforts• Partner with teams to ensure frontend solutions meet accessibility, security, and performance requirements• Review code and container scans and remediate both code and package vulnerabilities on a regular basis.### **Required For This Opportunity**• Must have an active Top-Secret clearance and be eligible for SCI.• 8+ years of experience developing modern frontend applications using React, JavaScript, TypeScript, and Node.js• Advanced experience building UI components with HTML, CSS, Sass, and responsive design frameworks• Strong experience integrating with REST APIs and working with JSON and XML data formats• Proficiency with Git and GitLab for source control, collaboration, and code review workflows• Ability to design, refactor, and maintain scalable frontend architectures in cloud environments (AWS preferred)• Deep understanding of frontend performance optimization, browser behavior, debugging techniques, and application profiling• Demonstrated ability to mentor developers and lead best-practice discussions across the engineering team• Experience building cloud-native solutions in AWS• Experience with YAML and CI/CD pipeline development (GitLab CI preferred)• Experience with package scan vulnerability remediation• Experience with integration with .NET APIs or full stack environments### ### **Nice to Have Skills**• Experience with automated UI testing frameworks (Jest, React Testing Library, Cypress)• Familiarity with accessibility standards (Section 508, WCAG)• Familiarity with JFrog Artifactory• Familiarity with Jira for DevOpsAt AIS, we are committed to offering competitive and fair compensation that reflects the skills, experience, and contributions of each team member.The targeted base salary range for this role is $117,000-$177,000 per year. Please note that this range is provided as a guideline and the final offer will be based on several factors, including but not limited to, skillset and competencies, level of experience, education, certifications, and location.We value transparency in our hiring process and are happy to discuss how your unique qualifications align with our compensation structure during the interview process.