Senior Software Engineer, Backend, Grab
Apr, 2019 - Present
Created a rule engine and aggregation system with features like - velocity rules, backtesting, segmentation, A/B testing, rate limiting, failsafe, parallel evaluation, retry mechanism, actions rules, etc handling 10000+ RPS to empower Risk analysts and keep fraud levels < 0.01%.
Responsible for scoping, design, implementation, code reviews, deployments, monitoring, on-call support for 4 apps across 3 stacks with a small team.
Increased test coverage by 30% on 75k lines, improved code quality, introduced sonarqube, git hooks and some best practices leading to increased team productivity.
Built a centralized risk investigation portal consolidating 300+ real-time data points for ops agent workflow automation, resulting in the deprecation of several external vendors, saving close to $1M.
Handled complex infra and data migration (due to compliance reasons, PII data, gateway migrations) requirements ensuring no downtime.
Led agile transformation, scrum master role, and mentored team members across multiple squads.
Delivered several risk integrations and compliance requirements with strict deadlines enabling Grab to continue smooth business operations.