Senior Web Developer Resume Example
Hiring managers evaluating senior web developers look for system architectural ownership measured by scalability, not feature delivery without technical direction.
This resume is for senior web developers who lead complex technical projects and mentor junior staff, but aren't yet responsible for departmental budgeting or high-level engineering roadmaps.
- Ownership of system architecture and technical decision-making
- Evidence of cross-team influence and mentorship impact
- Ability to solve ambiguous performance and scalability challenges
- Professional summary emphasizing technical leadership
- Experience sections highlighting architectural impact over task completion
- Skills categorized by core languages and specialized engineering domains
Gabriel Garcia
Summary
Experience
- Architected a modular dashboard plugin system using React and TypeScript, enabling 4 internal teams to deploy independent features without deployment conflicts.
- Optimized client-side data fetching logic for the SQL Editor, reducing initial load times by 42% for large database schemas.
- Mentored 3 junior web developers on state management patterns and testing strategies, resulting in a 30% increase in test coverage across the main repository.
- Directed the migration of the merchant analytics dashboard to a server-side rendering architecture, supporting a 2.4x increase in concurrent user traffic during peak periods.
- Developed the incident response console's real-time update engine using WebSockets and Redux, handling up to 1,500 events per second.
- Refined the onboarding flow for the PagerDuty Dashboard, increasing user activation rates from 34% to 48% through A/B testing and performance tuning.
- Spearheaded the adoption of a shared UI component library across 5 services, cutting frontend development time for new features by 22%.
- Built internal data labeling tools using React and Node.js, streamlining the workflow for 1,200+ contractors.
- Decreased frontend bundle size by 35% by implementing code-splitting and tree-shaking, improving Time to Interactive (TTI) for remote users.
- Owned the maintenance and feature development of the internal merchant analytics dashboard, delivering 12 major feature updates over 2 years.
Education
Skills
Python · JavaScript · TypeScript · SQL · Git · REST APIs · React · Node.js · PostgreSQL · System Design · Architecture · Performance Optimization · CI/CD · GraphQL · Redis
What makes this resume effective
- This resume meets the hiring bar for a senior web developer by demonstrating architectural ownership, measurable performance optimizations, and technical mentorship.
- Notice how Gabriel highlights his impact at Supabase by detailing the creation of a modular dashboard plugin system that enabled four internal teams to work independently.
- The PagerDuty experience shows how he spearheaded the adoption of a shared UI component library, proving he can scale his influence across five different services.
How to write better bullet points
Mentored junior developers on the team.
Mentored 3 junior web developers on state management patterns, resulting in a 30% increase in test coverage across the main repository.
It moves from a vague activity to a specific outcome that proves the effectiveness of the mentorship.
Improved dashboard performance.
Optimized client-side data fetching for the SQL Editor, reducing initial load times by 42% for large database schemas.
It specifies the exact feature improved and provides a clear metric to validate the technical achievement.
Worked on a UI library for the company.
Spearheaded the adoption of a shared UI component library across 5 services, cutting frontend development time for new features by 22%.
It demonstrates leadership and cross-team influence rather than just participating in a project.
Senior Web Developer resume writing tips
- Highlight architectural decisions that unblocked other teams or reduced technical debt.
- Quantify mentorship by showing how your guidance improved team velocity or code quality.
- Focus on end-to-end ownership of complex systems rather than individual feature tickets.
Common mistakes
- Focusing too much on code syntax rather than system design, which fails to show you understand how components interact across the stack.
- Omitting the impact of mentorship, which suggests you are still operating as an individual contributor rather than a technical leader.
- Listing tools without context, as hiring managers care more about how you applied technology to solve a business problem than the tool itself.
Frequently asked questions
Is this resume right for someone with 6 years of experience? Yes if you have transitioned from feature implementation to leading system design and mentoring junior developers.
Yes if you have transitioned from feature implementation to leading system design and mentoring junior developers.
Yes, if you have moved beyond feature implementation into system design and mentoring. No, if your primary focus is still completing assigned tickets without influencing technical direction.
What if I haven't worked at high-growth startups like Supabase or PagerDuty? Yes, provided you emphasize architectural ownership and how you improved internal tools or standardized processes at your previous companies.
Yes, provided you emphasize architectural ownership and how you improved internal tools or standardized processes at your previous companies.
The principles of architectural ownership and performance optimization apply regardless of company size. You can highlight how you improved internal tools or standardized processes within a more traditional corporate environment.
What if I don't have access to specific performance metrics like load time percentages? Describe impact through the scale of the user base affected or the number of engineering teams that adopted your tools.
Describe impact through the scale of the user base affected or the number of engineering teams that adopted your tools.
The scale of impact can be described by the number of users affected or the number of teams that adopted your tools. Focusing on the complexity of the problem solved is a valid alternative to hard percentages.
How much should I change before applying to a role with a different tech stack? Swap the specific languages in your skills list, but maintain the bullet points emphasizing leadership and technical outcomes.
Swap the specific languages in your skills list, but maintain the bullet points emphasizing leadership and technical outcomes.
The specific languages in the skills section should be swapped, but the bullet structure emphasizing leadership and outcomes should remain. For example, the mention of TypeScript could be replaced with another typed language while maintaining the focus on modular systems.
What do hiring managers focus on for this level? Evidence that you can solve ambiguous technical problems and that your presence elevates the performance of the entire engineering team.
Evidence that you can solve ambiguous technical problems and that your presence elevates the performance of the entire engineering team.
They look for evidence that you can be trusted with ambiguous problems and that your presence makes the surrounding team better. In this resume, the work on the incident response console at PagerDuty signals the ability to handle high-stakes, high-concurrency systems.
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