Senior Frontend Software Engineer

DAT; Denver (CO); Hybrid; USD 140,000 - 190,000; Full time

Benefits offered by this job

Remote flexibility

Wellness allowance

Parental leave

Career development

Stock purchase

401(k) matching

Mental health support

FSA/HSA options

Life insurance

PTO & holidays

Leadership training

Merit increases

Health coverage

Job summary

DAT is seeking a Senior Frontend Software Engineer to shape the architecture, quality, and long-term direction of our customer-facing products. You will drive the technical strategy for the end-to-end user experience, ensuring it scales with growth and complex business requirements.

Design, build, and maintain highly performant, accessible web applications using our core frontend stack. You will own key UI components and design system elements, mentor engineers, and collaborate with UX designers

Qualifications

• 7+ years of frontend software development experience.
• Experience designing and evolving component libraries or design systems.
• Excellent written and verbal communication skills.
• Strong command of RESTful and GraphQL APIs.
• Experience with AI and Spec Driven Development.
• Mastery of modern JavaScript/TypeScript and tooling.
• Proven ability to lead technical discussions and drive consensus.

Responsibilities

• Shape architecture, quality, and long-term direction of customer-facing products.
• Drive technical strategy for end-to-end user experience at scale.
• Design, build, and maintain high-performance, accessible web apps.
• Own key UI components and design system elements.
• Mentor junior and mid-level engineers through code reviews and pairing.
• Collaborate with UX designers and engineering leaders to translate requirements.
• Write comprehensive unit, integration, and end-to-end tests.
• Define frontend observability and alerting using Datadog.
• Lead frontend incident response and root-cause analyses.

Skills

Frontend architecture

TypeScript

JavaScript

React

Angular

Web components

Performance optimization

RESTful APIs

GraphQL

Accessibility WCAG

Cross-browser compatibility

Observability

Code reviews

Mentorship

Education

Bachelor's degree in CS or related field

Tools

Datadog

AWS (CloudFront, S3)

Docker

Job description

• As a Senior Frontend Software Engineer, your expertise will directly shape the architecture, quality, and long-term direction of our customer-facing products
• You will drive the technical strategy for our end-to-end user experience, ensuring it scales with exponential growth and increasingly complex business requirements
• Design and Development: Design, build, and maintain highly performant, accessible, and responsive web applications using our core frontend stack and frameworks
• Component Ownership: Take end-to-end ownership of key UI components and design system elements, including long-term strategy for performance optimization, cross-browser compatibility, and accessibility standards
• Mentorship: Actively mentor junior and mid-level engineers through code reviews, pair programming, and knowledge sharing, fostering a culture of continuous growth and technical excellence
• Collaboration: Partner closely with UX designers and engineer leaders (Principals and Staff) to translate business requirements and design specs into polished, production-ready interfaces
• Quality Assurance: Champion a culture of quality by writing comprehensive unit, integration, and end-to-end tests, leading code reviews, and advocating for best practices in accessibility and maintainability
• Observability: Define and implement frontend monitoring and alerting strategies using Datadog to track performance metrics, error rates, and user experience health in production
• Incident Management: Lead the response and resolution of frontend-related production incidents, conduct root cause analyses, and drive the implementation of preventative measures at a systemic level

Benefits

• Remote/hybrid flexibility
• Wellness allowance
• Parental leave
• Career development paths
• Stock purchase program
• Immediate 401(k) matching
• Mental health support
• FSA/HSA options
• Life insurance
• 20 days PTO from day one, plus 10 paid holidays annually
• Leadership training, mentorship programs, education reimbursement & industry certifications
• Performance bonuses & annual merit increases
• Premium health coverage, plus dental & vision

This role is ideal for a seasoned engineer who leads by example — someone who thrives on translating complex data and workflows into intuitive interfaces, takes deep ownership of the full frontend lifecycle, and is energized by mentoring others while delivering high-impact work across our portfolioDeep expertise in Datadog or equivalent tools for frontend monitoring, distributed tracing, logging, and observabilityHands-on experience deploying and managing frontend applications on AWS (e.g., CloudFront, S3), with an understanding of CDN strategy, caching, and infrastructure as it relates to frontend performanceMastery of web performance best practices, browser rendering pipelines, and accessibility (WCAG) standards — and the ability to evangelize these across the organizationExcellent written and verbal communication skills, with experience presenting technical concepts to both technical and non-technical audiencesStrong command of RESTful and GraphQL APIs and patterns for integrating complex frontend applications with backend servicesAt least 7 years of experience in frontend software development with a consistent track record of delivering high-quality, high-impact work at scaleProven experience designing, building, and evolving component libraries or design systems used across multiple teams or productsDemonstrated ability to lead technical discussions, influence cross-functional stakeholders, and drive consensus on complex decisionsExperience working with AI and/or Spec Driven DevelopmentDeep proficiency in modern JavaScript/TypeScript and the broader ecosystem, including build tooling, bundlers, and performance optimizationExpert-level knowledge of frontend frameworks such as Angular, React, and/or web components, with the ability to make and defend architectural choices between themA Bachelor’s degree in Computer Science, a related technical field, or equivalent practical experienceSolid understanding of containerization (Docker) and CI/CD pipelines as they apply to frontend development workflows