Senior Frontend Software Engineer- Hybrid

Tenet3 • Dayton, OH

7d • Hybrid

About The Position

Tenet3 is seeking a Senior Frontend Software Engineer to drive the delivery of large, complex UI features, lead architecture and design improvements, and mentor engineers across the team. Working as a senior technical contributor, this role focuses on advancing modern front-end technologies, design systems, and user-centered engineering while contributing significantly to technical strategy. You will have the opportunity to lead major UI initiatives, promote scalable architecture and accessibility, and elevate engineering best practices across the organization. The ideal candidate is a seasoned engineer (7+ years) who understands that front-end architecture is the bridge between technical feasibility and exceptional user experience. This position will lead complex UI initiatives, mitigate technical debt, and ensure our front-end ecosystem is performant, accessible, and built for long-term scalability.

Requirements

• Deep technical expertise in JavaScript, TypeScript, React, HTML, CSS, and modern front-end architectural patterns.
• Experience with testing frameworks (e.g., Playwright, Vitest, Jest, React Testing Library), modern build tools/bundlers (e.g., Vite, Webpack), CI/CD pipelines, and AI developer workflows.
• Hands-on experience building interactive 2D/WebGL frontends using Pixi.js, optimizing browser performance via Web Workers, and utilizing profiling tools.
• 7+ years (or equivalent demonstrated depth) of experience in front-end software engineering, with a proven track record of mentoring junior and mid-level developers and driving architecture reviews.
• Deep knowledge of web accessibility standards, system-level performance optimization, and design system engineering.
• Exceptional written and verbal communication skills across technical and non-technical audiences, with a proven ability to build consensus and refine user flows.
• Demonstrated ability to align front-end technical strategy with business goals, deconstruct complex features into iterative components, and mitigate technical debt.
• Bachelor’s degree in computer science, electrical engineering, mechanical engineering, civil engineering, mathematics, physics, or a related technical field.

Responsibilities

• Lead the implementation of large-scale frontend features with minimal oversight
• Design reusable architecture patterns and contribute to the evolution of shared tooling and design systems
• Identify and resolve performance bottlenecks and accessibility issues at a systemic level
• Serve as a mentor to associate and mid-level engineers, providing technical guidance, code review feedback, and pair programming support
• Collaborate with cross-functional partners and design teams to clarify ambiguous requirements and align UI implementation with product strategy
• Influence roadmap priorities through technical feasibility insights and proactive risk mitigation
• Build interactive 2D/WebGL frontends using Pixi.js and optimize performance via Web Workers
• Integrate AI developer workflows and AI capabilities into front-end applications
• Optimize applications using code splitting, lazy loading, performance profiling tools, and CI/CD testing frameworks

Benefits

• Generous Paid Time Off : Including PTO, sick days, and floating holidays to help you recharge.
• Comprehensive Health Coverage : 100% paid medical, vision, and dental insurance for you and your family.
• HSA Contribution: Company contribution to help offset costs of the health insurance deductibles.
• Retirement Plan : 401(k) with company match
• Educational Support : Reimbursement for higher education, conferences, and self-study programs to support your continued learning.
• Disability & Life Insurance : Short-term and long-term disability, along with life insurance.
• Flexible Work Hours : Flex time to accommodate your work-life balance.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior