Senior UI Engineer, Lattice C2

📍 Job Overview

Job Title: Senior UI Engineer, Lattice C2

Company: Anduril Industries

Location: Costa Mesa, California, United States

Job Type: Full-time

Category: Engineering (Frontend/Full-Stack)

Date Posted: April 14, 2026

Experience Level: Mid-Senior (3+ years)

Remote Status: On-site

🚀 Role Summary

• Focus on building and maintaining foundational web application components for the Lattice Command and Control (C2) system, directly impacting engineering velocity and product quality across Anduril's divisions.

• Drive the design and implementation of shared UI building blocks that enable seamless interaction with Lattice OS backend services for common operating picture visualization, intent conveyance, and data management.

• Proactively identify and address pain points within the development experience and infrastructure, contributing to a more efficient and robust developer ecosystem.

• Collaborate across the full technology stack, including front-end, back-end, build systems, and CI/CD pipelines, to deliver comprehensive solutions.

📝 Enhancement Note: This role is positioned within the core engineering team responsible for the foundational UI framework of Anduril's Lattice C2 system. The emphasis on "common web application components" and "shared building blocks" indicates a platform engineering-like function within the UI domain, focused on empowering other engineering teams rather than direct product feature development. The "Senior" title and 3+ years of experience suggest a need for individuals who can independently drive initiatives and mentor others.

📈 Primary Responsibilities

• Design, develop, test, deploy, and maintain robust and scalable UI components and frameworks that enhance engineering velocity and product quality for Lattice C2 applications.

• Proactively identify friction points, inefficiencies, and opportunities for improvement within the development workflow and infrastructure, proposing and implementing elegant solutions.

• Contribute to the entire software development lifecycle, including front-end development, back-end integration, build system configuration, and CI/CD pipeline management.

• Support and mentor fellow engineers by sharing expertise on engineering best practices, effective utilization of shared tools and frameworks, and contributing to a culture of continuous learning.

• Collaborate closely with backend engineers and product teams to ensure seamless integration of UI components with Lattice OS services, facilitating real-time data visualization and interaction with autonomous systems.

📝 Enhancement Note: The responsibilities emphasize a blend of hands-on development, infrastructure improvement, and mentorship, typical of a senior role within a platform or foundational engineering team. The "work across the stack" requirement highlights the need for versatile engineers comfortable with both frontend and backend considerations, as well as build/deployment processes.

🎓 Skills & Qualifications

Education: Bachelor's degree in Computer Science or a related field, or equivalent industry experience.

Experience: Minimum of 3 years of professional software engineering experience, with a focus on building production-ready web applications.

Required Skills:

• Proven experience in building production web applications using JavaScript or TypeScript (TypeScript, React, and RxJS are specifically mentioned).

• Proficiency in at least one modern backend programming language such as C++, Rust, or Golang.

• Solid understanding of fundamental computer science principles, including algorithms, data structures, and automated testing methodologies.

• High degree of empathy for fellow engineers, recognizing them as primary stakeholders and "customers" for the developed tooling.

• Ability to work effectively in a fast-paced, mission-driven environment.

Preferred Skills:

• Demonstrated bias for action and a proactive approach to problem-solving and ownership.

• Experience maintaining and optimizing continuous integration (CI) systems, specifically CircleCI.

• Familiarity or interest in working within monorepos and with modern build systems like Bazel, Buck, or Nx.

• Experience or strong interest in developing with Golang.

• Experience with gRPC/protobuf or similar remote procedure call (RPC) technologies for inter-service communication.

📝 Enhancement Note: The requirement for U.S. Person status is critical and tied to national security and export control regulations, common in defense technology companies. The explicit mention of TypeScript, React, and RxJS indicates the primary frontend stack, while C++, Rust, and Golang point to the backend languages the team interacts with or potentially contributes to. Bazel as a build system is a significant differentiator and a key skill to highlight.

📊 Process & Systems Portfolio Requirements

Portfolio Essentials:

• Showcase projects demonstrating the design and implementation of reusable UI components or libraries, emphasizing modularity and maintainability.

• Include examples of applications or features that required significant integration with backend services, highlighting efficient data fetching, state management, and error handling strategies.

• Provide evidence of contributions to development infrastructure, such as tooling, build scripts, or CI/CD pipeline improvements, illustrating an impact on team efficiency.

Process Documentation:

• Document the lifecycle of a significant feature or framework you developed, from initial problem identification and requirements gathering through design, implementation, testing, deployment, and ongoing maintenance.

• Illustrate how you have optimized development workflows or implemented automation to reduce manual effort and accelerate delivery cycles within a team context.

• Detail how you have measured the impact of your contributions, using metrics related to engineering velocity, product quality, system performance, or developer satisfaction.

📝 Enhancement Note: For a role focused on foundational UI engineering and developer tooling, a portfolio should emphasize not just finished user-facing features, but also the underlying architecture, reusability, and efficiency gains achieved. Demonstrating an understanding of developer experience (DevEx) and the ability to support other engineers is crucial.

💵 Compensation & Benefits

Salary Range: $166,000 - $220,000 USD per year (base salary).

Benefits:

• Healthcare: Comprehensive medical, dental, and vision plans with minimal employee cost for U.S. roles.

• Income Protection: Company-paid life and disability insurance.

• Time Off: Generous Paid Time Off (PTO) plan, including a holiday hiatus in December, and dedicated Caregiver & Wellness Leave.

• Family Planning: Support for fertility treatments, adoption, and gestational carriers, plus parenting resources.

• Mental Health: 24/7 access to free mental health resources, including therapy and life coaching, along with life services support.

• Professional Development: Annual reimbursement for professional development activities.

• Commuter Benefits: Company-funded commuter benefits based on region.

• Relocation Assistance: Available based on role eligibility.

• Retirement Savings: Traditional 401(k), Roth, and after-tax (mega backdoor Roth) options for U.S. employees.

• Equity: Highly competitive equity grants are typically included as part of the total compensation package.

Working Hours: Standard full-time hours (assumed 40 hours per week), with potential for flexibility given the nature of engineering work, though the role is on-site.

📝 Enhancement Note: The salary range provided is for base salary only, and the company explicitly states that highly competitive equity grants are part of the total compensation package. This is a significant factor for senior engineering roles, especially in growth-stage technology companies. The benefits package is comprehensive and emphasizes employee well-being and development, aligning with attracting top engineering talent.

🎯 Team & Company Context

🏢 Company Culture

Industry: Defense Technology. Anduril is a leader in modernizing military capabilities through advanced technology, focusing on AI, autonomy, computer vision, sensor fusion, and networking.

Company Size: The description implies a rapidly growing, established company that is still building out foundational infrastructure, suggesting a dynamic environment with significant impact potential.

Founded: Anduril was founded in 2017, indicating a relatively young company that has achieved substantial growth and market presence in a short period.

Team Structure:

• The Lattice C2 UI team is described as being in its "formative stage," suggesting it's a growing team with significant opportunity to shape its direction and processes.

• It functions as a foundational team, providing shared components and infrastructure for other engineering divisions building customer-facing web applications.

Methodology:

• Emphasis on "engineering velocity" and "product quality" suggests a focus on agile development principles, efficient workflows, and robust testing practices.

• The use of modern technologies like TypeScript, React, RxJS, and potentially Bazel points towards a commitment to leveraging cutting-edge tools for efficient development.

• Proactive problem identification and solution crafting are key to the team's operational methodology.

Company Website: https://www.anduril.com/

📝 Enhancement Note: Anduril's mission-driven nature in the defense sector creates a unique culture often characterized by a high sense of urgency, technical excellence, and a strong focus on impact. The "formative stage" of the UI team means there's an opportunity to influence processes and architectural decisions significantly.

📈 Career & Growth Analysis

Operations Career Level: Senior Engineer. This level implies a need for independent problem-solving, technical leadership within specific domains, and the ability to mentor junior engineers. The role focuses on building the foundational tools and frameworks that enable other engineers, positioning it as a critical enabler within the engineering organization.

Reporting Structure: While not explicitly stated, a Senior UI Engineer on a foundational team would likely report to an Engineering Manager or Lead responsible for the Lattice C2 platform or UI infrastructure. Collaboration will be extensive with other engineers on the UI team, backend teams, and potentially product managers.

Operations Impact: The role has a significant indirect impact on revenue and business decisions by directly improving the efficiency and capability of engineering teams. By accelerating the development and deployment of advanced defense technologies, this role helps Anduril bring innovative products to market faster and more reliably, which is critical for securing contracts and maintaining a competitive edge.

Growth Opportunities:

• Technical Specialization: Deepen expertise in frontend frameworks (React, RxJS), build systems (Bazel), and potentially backend languages (Golang, C++, Rust) through complex project work.

• Platform Engineering Leadership: Grow into a lead role within the Lattice C2 UI team, taking ownership of architectural decisions, roadmap planning, and driving best practices across the organization.

• Cross-Functional Expertise: Gain broad experience by working across the full stack, including CI/CD, backend services, and infrastructure, to become a more versatile engineer.

• Mentorship and Team Building: Develop leadership skills by mentoring junior engineers and contributing to the growth and onboarding of new team members in a rapidly scaling company.

📝 Enhancement Note: The "Senior" designation, combined with the focus on foundational tooling and infrastructure, suggests a pathway towards technical leadership, Staff/Principal Engineer roles, or management within platform engineering. The company's rapid growth provides ample opportunities for career advancement.

🌐 Work Environment

Office Type: On-site. The role is explicitly not remote, indicating a preference for in-person collaboration and a traditional office environment.

Office Location(s): Costa Mesa, California. This location is in Orange County, a significant hub for technology and engineering in Southern California.

Workspace Context:

• The environment is likely collaborative, given the emphasis on team-building and cross-functional work. Expect a dynamic office setting conducive to brainstorming and rapid iteration.

• Access to modern development tools and technologies is implied, essential for a defense technology company focused on innovation.

• Opportunities for direct interaction with a diverse engineering team, including those working on cutting-edge AI and defense systems, will be frequent.

Work Schedule: Standard full-time hours are expected, with the potential for some flexibility, though the on-site requirement suggests a structured work day. The fast-paced nature of the defense tech industry may also lead to periods of intense work to meet project deadlines.

📝 Enhancement Note: The on-site requirement in Costa Mesa suggests a company that values in-person collaboration, team cohesion, and potentially has specialized facilities or security protocols that necessitate a physical presence. This environment is likely geared towards high-impact, mission-critical work.

📄 Application & Portfolio Review Process

Interview Process:

• Initial Screening: A recruiter or hiring manager will likely conduct an initial call to assess basic qualifications, experience, and cultural fit, and to explain the interview process.

• Technical Interviews (Multiple Rounds): Expect several technical interviews focusing on:

  • Frontend Fundamentals: Deep dives into JavaScript, TypeScript, React, data structures, algorithms, and state management.
  • Backend/Full-Stack Concepts: Questions related to backend languages (Go, C++, Rust), API design (gRPC/protobuf), and system architecture.
  • Problem-Solving & System Design: Scenarios requiring you to design scalable UI components, optimize existing systems, or architect new features, potentially involving whiteboarding or collaborative coding.
  • DevOps & Infrastructure: Questions related to CI/CD, build systems (Bazel), and testing methodologies.

• Behavioral/Values Interview: An interview focused on assessing empathy for engineers, bias for action, ownership, and alignment with Anduril's culture and mission.

• Hiring Manager/Team Lead Interview: A final discussion to evaluate overall fit, career aspirations, and address any remaining questions.

Portfolio Review Tips:

• Highlight Reusability & Scalability: Showcase projects where you built components or libraries that were used by multiple developers or applications, emphasizing modularity and maintainability.

• Demonstrate Impact: For each project, clearly articulate the problem you solved, your specific contributions, the technologies used, and the measurable outcomes (e.g., reduced load times, increased developer efficiency, fewer bugs).

• Showcase Full-Stack Contributions: If possible, include examples where you touched backend systems, build pipelines, or CI/CD, demonstrating your ability to "work across the stack."

• Code Samples: Be prepared to walk through relevant code snippets from your portfolio, explaining design choices and trade-offs. Ensure code is clean, well-documented, and follows best practices.

• Focus on Developer Experience (DevEx): Since this role is about empowering other engineers, highlight projects where you improved tooling, documentation, or developer workflows.

Challenge Preparation:

• System Design: Practice designing complex UI architectures, considering scalability, performance, and maintainability. Be ready to discuss trade-offs.

• Coding Challenges: Sharpen your skills in data structures, algorithms, and idiomatic TypeScript/JavaScript. Be prepared for live coding sessions.

• Behavioral Scenarios: Prepare examples using the STAR method (Situation, Task, Action, Result) to demonstrate your problem-solving skills, collaboration, ownership, and empathy for fellow engineers.

• Company Mission Alignment: Understand Anduril's mission and be ready to articulate how your skills and contributions align with advancing defense technology.

📝 Enhancement Note: The emphasis on "formative stage," "foundational web frameworks," and "engineering velocity" suggests that interviewers will be keen to assess not just technical prowess, but also strategic thinking regarding developer productivity and the ability to build scalable, maintainable infrastructure. Portfolio examples demonstrating impact on other teams will be highly valued.

🛠 Tools & Technology Stack

Primary Tools:

• Frontend: TypeScript, React, RxJS. Deep expertise in these is essential.

• Backend Interaction: Familiarity with C++, Rust, or Golang is required. Experience with gRPC/protobuf for efficient inter-service communication is a significant plus.

• Build Systems: Experience or interest in modern monorepo build systems like Bazel is highly desirable. Understanding build optimization and dependency management is key.

• CI/CD: Experience with continuous integration systems, specifically CircleCI, is preferred. Understanding automated deployment pipelines is important.

Analytics & Reporting:

CRM & Automation:

• Not directly applicable to this role, as it's focused on internal engineering tooling rather than customer-facing CRM systems.

📝 Enhancement Note: The technology stack is modern and leans towards high-performance, robust systems. Bazel is a sophisticated build system often used in large, complex codebases, indicating a significant level of engineering maturity at Anduril. Proficiency in TypeScript and React is paramount, but understanding the backend systems they interact with is equally important.

👥 Team Culture & Values

Operations Values:

• Mission-Driven: A strong commitment to Anduril's mission of transforming defense capabilities through technology.

• Engineering Excellence: A dedication to building high-quality, robust, and scalable software solutions.

• Collaboration & Empathy: Valuing teamwork, open communication, and a deep understanding of the needs of fellow engineers (their "customers").

• Bias for Action & Ownership: Encouraging initiative, proactive problem-solving, and taking responsibility for outcomes.

• Innovation: A culture that embraces new technologies and approaches to solve complex problems in the defense sector.

Collaboration Style:

• Cross-Functional Integration: Expect close collaboration with backend engineers, other UI teams, and potentially product or program managers to ensure seamless integration and alignment of development efforts.

• Mentorship & Knowledge Sharing: A culture that encourages senior engineers to mentor others, share best practices, and contribute to a collective learning environment.

• Iterative Development: A willingness to gather feedback, iterate on solutions, and continuously improve the developer experience and infrastructure.

📝 Enhancement Note: The emphasis on "empathy for your fellow engineers" and "bias for action" are key cultural indicators. This team likely thrives on solving complex technical challenges and delivering tangible improvements that benefit the broader engineering organization.

⚡ Challenges & Growth Opportunities

Challenges:

• Building Foundational Infrastructure: Developing and maintaining a robust, scalable UI framework for a rapidly growing company with diverse product needs presents significant architectural challenges.

• Balancing Innovation and Stability: Keeping pace with modern web technologies while ensuring the stability and reliability of core infrastructure for critical defense applications.

• Cross-Team Dependencies: Managing dependencies and ensuring alignment across multiple engineering teams who rely on the UI framework for their product development.

• Evolving Technology Landscape: Staying ahead of rapid advancements in frontend technologies, build systems, and backend communication protocols.

Learning & Development Opportunities:

• Deep Dive into Advanced Technologies: Gaining hands-on experience with cutting-edge technologies like Bazel, gRPC, and potentially Rust or advanced C++ in a production environment.

• Platform Engineering Expertise: Developing specialized skills in building and scaling internal developer platforms and frameworks.

• Mentorship & Leadership: Opportunities to lead technical initiatives, mentor junior engineers, and contribute to shaping the team's technical direction.

• Industry Exposure: Working within the defense technology sector provides unique insights into high-stakes engineering and complex system integration.

📝 Enhancement Note: The "formative stage" of the team presents a challenge in terms of establishing best practices but also a significant growth opportunity for individuals who enjoy shaping processes and architectures from the ground up.

💡 Interview Preparation

Strategy Questions:

• Foundational Framework Design: "Describe how you would design a reusable UI component library for a platform like Lattice OS. What principles would you follow to ensure scalability, maintainability, and ease of use for other engineering teams?" (Focus on modularity, API design, documentation, and testing).

• Developer Experience Improvement: "Imagine you've identified a significant bottleneck in our frontend development workflow. How would you approach diagnosing the problem, proposing a solution, and getting buy-in from stakeholders?" (Highlight problem-solving methodology, data gathering, and communication skills).

• Cross-Functional Collaboration: "Tell me about a time you had to collaborate closely with backend engineers or teams with different technical priorities. How did you ensure successful integration and alignment?" (Emphasize communication, negotiation, and a shared understanding of goals).

Company & Culture Questions:

• Mission Alignment: "What interests you about Anduril's mission, and how do you see your role as a Senior UI Engineer contributing to our defense technology goals?" (Connect your skills to the company's impact).

• Empathy for Engineers: "Describe a situation where you went above and beyond to help a fellow engineer or improve their development experience. What was the outcome?" (Provide specific examples demonstrating your "customer-centric" approach to internal tooling).

• Ownership & Initiative: "Can you share an example of a time you identified a problem or opportunity that wasn't explicitly assigned to you, and how you took ownership to address it?" (Highlight proactivity and a results-oriented mindset).

Portfolio Presentation Strategy:

• Structure Your Narrative: For each project, clearly state the problem, your role and contributions, the technical challenges, the solutions implemented, and the measurable impact (e.g., "Reduced build times by 20%," "Enabled faster feature development for X team").

• Quantify Impact: Use data and metrics whenever possible to demonstrate the value of your work, especially concerning efficiency gains, performance improvements, or bug reductions.

• Focus on Reusability: For this role, emphasize projects where you built reusable components, libraries, or tools that were adopted by others. Explain the design choices that facilitated this reusability.

• Be Prepared for Deep Dives: Anticipate detailed questions about your code, design decisions, trade-offs, and testing strategies. Have specific examples ready to illustrate your technical depth.

• Connect to Anduril: Where possible, draw parallels between your past projects and the challenges or opportunities at Anduril, showing you've thought about how your skills apply.

📝 Enhancement Note: The interview process will likely assess not only technical skills but also strategic thinking around developer productivity and the ability to build foundational systems that scale. Demonstrating an understanding of the "why" behind technical decisions, especially in the context of empowering other engineers, will be critical.

📌 Application Steps

To apply for this Senior UI Engineer position:

• Submit your application through the provided greenhouse.io link.

• Tailor Your Resume: Highlight your experience with TypeScript, React, RxJS, and any experience with backend languages (C++, Rust, Golang). Emphasize projects where you built reusable components, improved developer tooling, or worked on infrastructure. Quantify achievements with metrics.

• Prepare Your Portfolio: Curate projects that showcase your ability to design and implement scalable, maintainable UI components and frameworks. Include examples of cross-functional collaboration and contributions to development infrastructure or tooling. Be ready to walk through your code and explain your design decisions.

• Research Anduril: Familiarize yourself with Anduril's mission, products (especially Lattice OS), and company culture. Understand their commitment to defense technology and innovation.

• Practice Technical & Behavioral Questions: Prepare for in-depth technical discussions on frontend development, system design, and backend integration. Practice answering behavioral questions using the STAR method, focusing on ownership, collaboration, and empathy for engineers.

⚠️ 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.

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