Dariusz G. Email & Phone Number

Boise, Idaho, Us

I am excited to once again work on software solutions for the retail industry and to be part of the dynamic and talented team at Albertsons.

San Francisco, Ca, Us

As a founding engineer at Neon, I thrived in a dynamic, fast-paced environment, working closely with a small engineering team and collaborating with product and design to deliver significant functionality on a weekly basis.• Full stack development using React, TypeScript, NodeJS, and PostgreSQL.• Enhanced productivity and ensured type safety by refactoring OpenAPI specifications and creating a separate project used to generate code shared by the server API and the client React application.• Successfully integrated an exchange rate provider, from initial exploration to full production deployment, within one week.• Played a key role in a major redesign of the database entity model used for game storefronts.

San Francisco, California, Us

As the lead engineer I had the unique opportunity to work on greenfield projectswhere I was responsible for architecting, designing, and implementing solutions,taking them from proof of concept to production deployment. I served as a men-tor, conducted code reviews, and established office hours for collaborative work.During these sessions, any team member could join me to design, review code, ordiscuss potential solutions for their tasks.• Created PHP SDK that allows Dropbox acquired company to integrate with any internalservice using gRPC and Protobuf.• Using Domain Driven Design and hexagonal architecture, designed and implemented firstasynchronous microservice and reusable library used for digital signatures. The service allowed Sign application to easily scale given every increasing workload.• Established an inclusive and formal engineering review process for major decisions requiring collaboration and formal approval.• Implemented Single Sign On unifying access to Elixir workflow and PHP digital signatureapplications.

Neuilly Sur Seine, Ile De France, Fr

As a Store Systems Solutions Architect, I am was overseeing multiple applications that were deployed in Sephora stores and head office. I provided technical expertise for the development team to drive code quality, sound architecture, and design. My work included writing prototypes for a new generation of applications and improving existing applications as part of refactoring effort. I was involved in discoveries related to new solutions and have direct input related to technology choices and architecture.• Implemented ETL micro-service as a replacement for an existing monolith. Used Docker container and Go programming language to improve processing speed by 10 times while using fraction of the CPU and available memory. Lowered maintenance costs by decreasing code complexity.• Driving force for improvements and implementation of new architecture for Scan Gun inventory control application that is distributed among multiple Amazon Web Services (AWS) availability zones and consist of mobile client (scanner and mobile computer), RESTful Web API, batch processing component, and MySQL database.• Established coding standard that includes usage of Design by Contract in Scan Gun application. The new process combined with the new architecture allowed for major improvement in productivity and quality of produced code. • Involved in gathering business and non-functional requirements for reverse logistic module of Scan Gun application and translating these requirements to JIRA task for the development team. The new module was delivered on time and it was positively received by application users. The company realized major cost savings related to a new business process.• Re-implemented threading manager of the Scan Gun client and created concurrent tests in order to resolve issues that were present.• Mentoring of senior members of development team as part of pair programming in order to solidify usage of advanced programming techniques.

Fort Lauderdale, Florida, Us

As an Application Architect I led development and implemented major components of Mi9 Merchandise Management System, Back Office, and Data Warehouse. I was involved in successful implementations where these systems were replaced at such clients as Barneys of New York and Home Depot. I traveled to California and Mexico where I helped in integration efforts.• Designed, and implemented parts of a complex system responsible for processing Point of Sale (POS) transactions into Merchandising System in real time. The system is currently operating under heavy load as over 120 stores send POS and Back Office transactions in real time.• Designed and implement REST and SOAP versions of web service where, National Retail Federation’s (NRF) compliant POS transactions are sent and then processed in real time by the Merchandising System. Implemented initial prototype and a simulation engine that was used to test the architecture and implementation using multiple processes and varying sizes of transactions.• Defined data model, for storing transactions received from POS system. Increased productivity by using code generation to translate data model into database scripts that conformed to company standards.• Implemented integration RESTful web service that exposes logical data model of Mi9 Merchandise Management System using OData protocol and serves a feed of changes to subscribing clients using XML or JSON formatted events.• Implemented re-usable pivot grid control capable of displaying, using different views, data related to real time POS transaction. Implementation used .NET Framework, C# programming language, and WPF components.• Optimized web service session management in order to minimize data access from .NET. The overall architecture for the Retail Hub is highly scalable as the service proved to be capable of processing over a million transaction lines in 10 hours and is capable of much higher throughput based on the results obtained from simulation.

Fort Lauderdale, Florida, Us

Led a team of Software Engineers developing Mi9 Retail Merchandise Management System.• Performing code reviews targeting high quality of final code and compliance with company standards. • Mentoring of less experienced employees.• Involved in the design and implementation of the Extract Transform Load (ETL) process between Merchandising and Data Warehouse system.• Designed and implemented changes to batch solution in order to allow for concurrency and multi-threading.

Fort Lauderdale, Florida, Us

Promoted to Senior Engineering position after demonstrating a thorough expertise in developing both front and back end of Mi9 Merchandise Management System.• Developed purchasing and allocation subsystems used in the Mi9 Merchandise Management application.• Improved productivity and quality of software by using code generation to automatically create stored procedures as well as business objects from database views.

Fort Lauderdale, Florida, Us

After completing University, given a tough job market, I volunteered to work without compensation for Mi9 Retail, which at a time was a new start-up. I quickly become an expert in developing future rich user interfaces for Merchandise Management System. The purchasing screen I developed, contributed to the company acquiring a major client and in me being hired.• Developed many of the screens initially found in Mi9 Merchandise Management System.• Extensive use of Infragistics controls for the development of functionally rich user interface components using .NET Framework.• Developed and maintained BizTalk solution which allows for automatic transfer of purchase orders and receipt of invoices to and from various vendors using Electronic Data Interchange (EDI) protocol. Developed SharePoint web site that used XMLT to transform the received XML representation of the EDI invoice document to HTML representation used by the browser.

Toronto, Ontario, Ca

Offered full time employment after 16 months of co-op term and because of A+ evaluation by the management of memory manufacturing division.Major tasks and areas of expertise:• Programming for Pansert MVIIF High Speed Electronic Component Placement Machine.• Debugging of existing programs.• Making sure that all problems related to hardware and software faults are resolved across 5 different production lines.• Certified as a high speed placement machine trainer and operator.

Toronto, Ontario, Ca

16 months co-op employment followed by an A+ evaluation and offer of full time position.Major tasks and areas of expertise:• Improved line utilization by taking full advantage of the available software and hardware.• Became an expert at troubleshooting hardware as well as software related problems.

Bachelor’S Degree, Bsc Specialized Honours Computer Science

Electronics Engineering Technologist Diploma