Bachelor's degree in Computer Science, Engineering, or related field
8+ years of experience in production web applications
1+ years of experience as a principal engineer
Expert-level proficiency with TypeScript
Strong experience with React and server-side rendered Next.js
Deep understanding of functional programming and immutability
Advanced knowledge of automated testing strategies
Responsibilities
Take ownership of quality through design and code reviews
Collaborate cross-functionally with product and design teams
Architect systems that are composable and resilient
Improve performance and catch subtle quality issues
Champion functional programming to simplify debugging
Lead AI-assisted prototyping and refactoring
Build and maintain a comprehensive automated test suite
Benefits
Collaborative environment with cross-functional teams
Focus on engineering judgment over quick coding solutions
Opportunity to leverage modern AI tools
Emphasis on high-quality, maintainable code
Room for technical leadership and mentorship
Full Job Description
About the Role:
Engine by Gen partners with leading Financial Institutions to surface the richest, most comprehensive set of personalized financial product offers to the consumer. We are looking for an experienced Lead Engineer to support our world-class financial products marketplace.
We're looking for a deeply experienced front-end engineer with full-stack fluency who brings strong judgment and a thoughtful critical perspective. This role is not about producing baseline code quickly. Modern AI tools can do that. It's about collaboration, setting direction, making sound decisions, and driving technical quality. You will leverage AI agents as force multipliers while maintaining a high bar for correctness, maintainability, testability, and operational excellence.
Success here depends on engineering judgment-choosing the right solution, not just producing code.
Key Responsibilities:
Take Ownership: You'll be accountable for upholding a high bar for quality through design reviews, code reviews, test strategy, and production readiness.
Collaborate cross-functionally: Partner with product, design, and fellow engineers to shape solutions, clarify tradeoffs, and deliver reliably.
Architect for change: Design and build full-stack, frontend-leaning systems that are intentionally small, composable, and resilient to evolving product requirements.
Improve Performance & Quality: Enforce architectural and operational quality, catching subtle issues that are easy to miss in fast-moving, AI-assisted development.
Champion Functional Patterns: Champion functional programming principles and immutability to reduce side effects and make systems simpler to reason through and debug.
Lead AI-assisted development: You'll use AI assistants/agents for prototyping, scaffolding, refactoring, and exploratory development, then harden the result and rigorously validate through tests, reasoning, and edge-case review.
Raise quality through testing: Build and maintain a strong automated test suite of unit, integration/contract, component/UI, and end-to-end coverage, with fast feedback loops in CI.
About you:
Bachelor's degree in Computer Science, Engineering, or a related field.
8+ years of experience building production web applications and 1+ years as a principal engineer.
Expert-level proficiency with TypeScript, strong experience with React, server-side rendered Next.js (or similar), and performant component-driven development (e.g. Reshaped UI).
Ability to articulate complex technical trade-offs to stakeholders and translate product vision into high-fidelity technical direction.
Demonstrated development of simple, reusable, changeable systems (with examples of refactors, platforming work, or scalable patterns).
Preference for functional programming and a deep understanding of why immutability is critical in modern frontend development.
Advanced knowledge of the testing pyramid and how to use automated tests as a safety net for rapid, iterative development.
Proven technical leadership through mentorship, delegation, and high-quality code reviews.
Hands-on experience with tools like Cursor (or equivalent AI-augmented IDEs) and all modern coding models.
Practical understanding of where AI is strong vs. where it falls short, paired with sound discernment in its application.
Ability to use AI agents to quickly project multiple approaches, compare tradeoffs, and converge on the best solution without shipping "AI-shaped" code.
What's next:
Code Review Assessment
Recruiter Interview
Hiring Manager Interview
Technical Interview
Culture Fit Interview
About Avast
Avast is a cybersecurity company that develops and markets security software for personal computers and mobile devices. The company's products include antivirus software, VPN services, and password management tools. Avast has over 435 million active users worldwide and is headquartered in London, England. The company was founded in 1988 and has offices in the Czech Republic, the United States, and other countries.
