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I am a Senior .NET Software Engineer with 11+ years of experience designing and building scalable, domain-driven platforms across wealth management, e-commerce, digital health, and logistics. I thrive on delivering secure, high-performance systems through well-structured APIs and event-driven architectures, and I enjoy collaborating with product, compliance, and business stakeholders to ship production-grade solutions. In my work, I translate complex requirements into maintainable software, robust data models, and intuitive dashboards. I value data integrity, regulatory compliance, reliability, and user-centric design at scale, and I continuously pursue improvements in security, observability, and maintainability.…I am a Senior .NET Software Engineer with 11+ years of experience designing and building scalable, domain-driven platforms across wealth management, e-commerce, digital health, and logistics. I thrive on delivering secure, high-performance systems through well-structured APIs and event-driven architectures, and I enjoy collaborating with product, compliance, and business stakeholders to ship production-grade solutions. In my work, I translate complex requirements into maintainable software, robust data models, and intuitive dashboards. I value data integrity, regulatory compliance, reliability, and user-centric design at scale, and I continuously pursue improvements in security, observability, and maintainability.

Dillon Drobena

Full Stack Developer, Back-End Developer, Web Developer, +2

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I am a Senior .NET Software Engineer with 11+ years of experience designing and building scalable, domain-driven platforms across wealth management, e-commerce, digital health, and logistics. I thrive on delivering secure, high-performance systems through well-structured APIs and event-driven architectures, and I enjoy collaborating with product, compliance, and business stakeholders to ship production-grade solutions. In my work, I translate complex requirements into maintainable software, robust data models, and intuitive dashboards. I value data integrity, regulatory compliance, reliability, and user-centric design at scale, and I continuously pursue improvements in security, observability, and maintainability.…I am a Senior .NET Software Engineer with 11+ years of experience designing and building scalable, domain-driven platforms across wealth management, e-commerce, digital health, and logistics. I thrive on delivering secure, high-performance systems through well-structured APIs and event-driven architectures, and I enjoy collaborating with product, compliance, and business stakeholders to ship production-grade solutions. In my work, I translate complex requirements into maintainable software, robust data models, and intuitive dashboards. I value data integrity, regulatory compliance, reliability, and user-centric design at scale, and I continuously pursue improvements in security, observability, and maintainability.

Available to hire

I am a Senior .NET Software Engineer with 11+ years of experience designing and building scalable, domain-driven platforms across wealth management, e-commerce, digital health, and logistics. I thrive on delivering secure, high-performance systems through well-structured APIs and event-driven architectures, and I enjoy collaborating with product, compliance, and business stakeholders to ship production-grade solutions.

In my work, I translate complex requirements into maintainable software, robust data models, and intuitive dashboards. I value data integrity, regulatory compliance, reliability, and user-centric design at scale, and I continuously pursue improvements in security, observability, and maintainability.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Senior .NET Software Engineer at Range

March 1, 2022 - Present

Led architecture and implementation of scalable wealth management platforms using C#, ASP.NET Core, SQL Server, and Angular. Built real-time portfolio valuation, performance calculations, and secure investor dashboards supporting 2M+ investor accounts with accurate holdings and returns across portfolios. Implemented secure trade workflows with state machines, idempotent APIs, and audit logs to ensure regulatory traceability. Designed flexible data models for multi-asset portfolios and integrated external brokers, custodians, and market data providers via REST and asynchronous processing. Established RBAC-based security and immutable transaction logs to protect sensitive financial data. Advocated for event-driven architectures using Kafka/RabbitMQ and Docker/Kubernetes to decouple services and enable reliable asynchronous processing at scale. Collaborated with product, compliance, and finance teams to define domain-driven workflows and deliver production-grade investment systems.

Senior Full Stack Developer at LedgerFlow Technologies

January 1, 2019 - February 1, 2022

Implemented dynamic tax calculation workflows with rule-based logic and third-party tax APIs; designed auditable persistence models using SQL Server and immutable order snapshots for reporting and audits. Built real-time shipping rate calculations using carrier APIs and RESTful ASP.NET Core services, improving shipping accuracy and reducing cart abandonment. Integrated multi-carrier shipping workflows with asynchronous retries to improve fulfillment reliability during outages. Modeled refund and return workflows with item-level transactions and state machines, supporting partial or full refunds and reducing manual handling by 30%. Ensured data consistency across orders, payments, and refunds via idempotent APIs and transactional boundaries. Optimized data access with Dapper, ADO.NET, EF Core, and SQL Server to deliver low-latency queries under high load. Implemented end-to-end observability using New Relic, Grafana, Prometheus, and structured logging; built unit and integration tests w

Software Engineer at Pager

September 1, 2016 - December 1, 2018

Architected patient engagement platforms using C#, ASP.NET Core, SQL Server, and React to provide secure access to appointments, medical records, test results, and care communications. Built patient-facing features with React and TypeScript, improving usability and participation. Implemented HIPAA-compliant protections with encryption, RBAC, and audit logging. Integrated healthcare systems via FHIR/REST APIs and background sync to consolidate fragmented data into unified patient profiles. Developed scalable backend services with ASP.NET Core and async processing to handle peak usage; enabled self-service scheduling and reminders to reduce no-show rates and administrative overhead. Implemented automated API tests to validate contracts and reduce regressions.

.NET Developer at FulfillCore Systems

July 1, 2014 - August 1, 2016

Designed and delivered an end-to-end warehouse management platform using C#, ASP.NET Core, SQL Server, and React to support high-volume receiving, putaway, picking, packing, and shipping. Implemented concurrency controls and inventory reservation logic to maintain accurate stock counts. Built scalable inbound/outbound logistics APIs, integrating ecommerce platforms, ERP systems, and carriers into a unified fulfillment pipeline. Optimized performance with SQL queries, indexes, and transactional boundaries to achieve low-latency lookups. Ensured data integrity and auditability with idempotent endpoints, structured logging, and inventory audit trails. Integrated barcode scanning workflows and a role-based admin panel to monitor inventory and KPIs in real time.