– Led development of RealProton, a regulated digital asset platform for tokenized real estate, translating product requirements into secure

backend services and production workflows; Java, Spring Boot, PostgreSQL, AWS.

– Integrated enterprise custody and wallet infrastructure for custodial digital asset flows, including wallet creation, policy controls,

transaction approvals, and transfer execution; Fireblocks, BitGo, webhooks, signing workflows.

– Built transaction lifecycle services for deposits, withdrawals, internal transfers, and settlement style state machines with idempotent

processing, reconciliation hooks, and replay safe event handling; Kafka, PostgreSQL, Redis.

– Implemented non custodial wallet support with signature based authorization and key handling practices, including safe nonce

management and tamper resistant request signing; cryptographic keys, signatures, EIP style signing patterns.

– Developed KYC and compliance enforcement including identity verification status gates, allowlists, transfer restrictions, audit trails,

and role based administrative controls aligned to regulatory expectations; KYC standards, RBAC, audit logging.

– Led architecture and delivery of a microservices platform, defining bounded contexts, API contracts, and data ownership; improved feature delivery speed by 35% and reduced cross-team dependencies by 40%; Java, Spring Boot, Node.js, PostgreSQL.

– Designed event-driven workflows with idempotent consumers, retries with exponential backoff, and dead-letter handling; reduced production incidents by 45% and improved recovery time by 38%; Kafka, Redis.

– Implemented transactional outbox publishing for reliable event delivery; eliminated duplicate side effects and improved data consistency across services by 90%; PostgreSQL, Kafka.

– Optimized hot-path APIs with query plan tuning, indexing, and selective caching; reduced p95 latency by 42% and lowered database CPU by 28%; PostgreSQL, Redis, REST APIs.

– Built an assignment management system with role-based permissions, validation, and workflow automation; reduced administrative overhead by 30% and improved submission correctness by 15%; Node.js, Express, Sequelize, PostgreSQL.

– Automated submission processing using serverless event notifications with idempotent handlers; reduced processing time from 6 minutes to 25 seconds and improved reliability by 35%; AWS Lambda, SNS, S3.

– Added observability with structured logs, metrics, dashboards, and alerts; reduced time-to-detect issues by 40%; Winston, StatsD, dashboards.

– Provisioned environments and infrastructure using IaC and standardized setup; reduced onboarding time by 45%; Pulumi, Docker, CI checks.

– Improved quality with automated tests and CI validation; reduced regressions by 20%; Jest, integration testing, CI CD.

– Built full-stack KYC and KYB verification workflows with reviewer tooling and deterministic state transitions; increased case throughput by 30% and reduced manual steps by 25%; Spring Boot, Angular, REST APIs.

– Integrated 6+ identity and risk providers using adapter services with standardized mapping and error taxonomy; improved completion rate by 11% and reduced provider-related failures by 33%; Java, REST APIs, structured logging.

– Implemented multi-tenant authentication, authorization, and auditing with PII-safe logging; passed compliance review with 50% fewer findings; OAuth2, OpenID Connect, JWT, RBAC.

– Reduced endpoint latency through query optimization, pagination, and caching; improved p95 response time by 29% under peak traffic; SQL, Redis.

– Introduced CI gates and expanded automated tests; reduced regressions by 28% and improved release cadence from weekly to 3x per week; JUnit, Mockito, Cypress, Jenkins.

– Delivered end-to-end product features across frontend and backend; reduced customer request turnaround time from 2 weeks to 4 days by tightening delivery loops; Angular, Node.js, REST APIs.

– Modernized the application into a progressive web experience with offline-first caching and notifications; improved retention by 12% and reduced support tickets by 22%; Angular, service workers.

– Built CI CD pipelines with automated tests, versioned artifacts, and staged deployments; reduced release cycle time by 48% and lowered rollback frequency by 27%; Jenkins, Git, automated testing.

– Optimized APIs by profiling slow endpoints, tuning SQL queries and indexes, and enforcing pagination; reduced p95 latency by 37% and reduced timeouts by 31%; SQL, relational databases.

– Introduced caching for high-frequency reads and session-heavy flows; reduced database load by 34% and improved throughput by 21%; Redis, caching patterns.

– Added structured logging with correlation IDs and standardized error taxonomy; reduced debugging time by 40% and improved incident triage speed; structured logs, dashboards.

– Expanded automated testing across unit and end-to-end suites; reduced regression escapes by 26%; Jest, Cypress, integration testing.

– Implemented analytics and referral tracking with serverless processing; reduced reporting latency from hours to minutes; AWS Lambda, event processing.