Daniel Lockyer
Performance and scaling consultant who analyzes the full stack - frontend, backend and infrastructure - to generate more revenue and cut costs for businesses.
Remote • Available for monthly retainer and bespoke projects.
Services
Bespoke Projects
Hourly consulting for specific performance challenges and one-off optimizations.
- One-off cost analysis and optimization
- Specific performance issue investigation
- System architecture review
- Database optimization
- Code profiling and bottleneck identification
Billed hourly • Project-based
Monthly Retainer
2 spots leftOngoing performance monitoring, optimization, and support for your entire application.
- Performance monitoring and roadmap management
- Automated alerts and dashboards setup
- Monthly reporting
- Process improvements and best practices
- Unlimited pull request review & async support via Slack/chat
Starting from $6,000/month
Custom Arrangements
Looking for something different? I also offer workshops, team coaching, training sessions, and other custom arrangements tailored to your specific needs.
Let's talkAreas of Expertise
Profiling & Optimization
Find what's making things slow, and make them fast. Raise the performance ceiling of your system.
Cost Analysis
Cut your cloud bill without breaking anything. Understand the complex cloud billing you have.
Stability & Monitoring
Stop things from breaking when they shouldn't, and know before your users when they do.
Previous Clients
Notable Open Source Contributions
Improved performance of Gumroad by 65% and reduced CPU usage by 50%
Improved search performance by caching key derivation - 10x faster encryption/decryption
Improved performance when importing posts via JSON file by 92%
Optimized settings cache - 30% more requests per second by avoiding JSON.parse hotpath
Optimized loading dynamic redirects - 3x faster by eliminating O(n²) algorithm
Added DB index for conversations.merged_into_id - 99.95% performance improvement on slow queries
Optimized Resources constructor - 15% less CPU during boot by replacing Object.assign
Added partial caching to GScan rules - prevents unnecessary work in theme checking
Optimized Admin dashboard stats - 85x faster (1ms vs 85ms) by replacing recursion with reduce
Optimized integrity check DB calls - reduced from 70+ queries to 1 single grouped query