Mark Sikora Email & Phone Number

Boston, Ma, Us

Designs robust and scalable data architectures using AWS Glue, Lambda, S3, and Redshift.Architect data pipelines and ETL (Extract, Transform, Load) processes to ingest, process, and transform large volumes of data for agent distribution reporting and other use cases.Ensures data solutions align with business requirements, scalability needs, and performance objectives.Implement data governance practices to ensure data quality, integrity, and compliance with regulatory requirements (e.g., GDPR, CCPA).Provides technical leadership and mentorship to multiple teams, guiding them in best practices for data engineering and AWS services.

Chicago, Illinois, Us

Designed, developed, and maintained scalable backend APIs using Spring Boot to deliver nutrition information to mobile applications.Implemented RESTful services, ensuring high performance, reliability, and security of the APIs.Optimize API endpoints for efficiency and responsiveness to handle millions of concurrent users.Collaborated with cross-functional teams including frontend developers, mobile app developers, QA engineers, and product managers to deliver features and enhancements.Shared knowledge and mentored junior developers, contributing to the team's technical expertise and best practices.

Boston, Ma, Us

Leader of the technical implementation of the blockchain ledger system on AWS, ensuring robustness, security, and compliance with industry standards.Developed and implement data migration strategies from the legacy system to the new blockchain ledger system.Configured and optimize AWS services such as Amazon RDS, and AWS Lambda for seamless integration and performance.Provided training and technical support to internal teams, contract teams, and stakeholders on using and maintaining the blockchain ledger system.Communicated project status, issues, and risks to project stakeholders and management clearly and concisely.

Boston, Ma, Us

As the technical lead for an agile team, I oversaw the development of inbound and outbound data pipelines for a new Salesforce customer relationship management system, integration with enterprise third-party data services, and data warehousing of insurance policy data.Collaborated with technical architects and business partners on enterprise application design and business feature definition.Mentored senior and junior team members in AWS Glue/Spark ETL, Java Spring processes, and development best practices/security configurations.Developed webhook prototypes to demonstrate integration patterns for cross-domain real-time messaging, leading to a long-term solution.Led the design, development, and implementation of a new AWS Glue/Spark ETL pattern for ingesting and curating third-party data into an AWS Data Lake and a legacy Teradata warehouse environment.Responsibilities include:Worked with aligned technical architects and business partners on enterprise application design and business feature definition.

Boston, Ma, Us

Technical led for an agile team, focusing on creating user stories, mentoring team members, and resolving production incidents.Actively participated in the successful deployment of over 20 microservices to production.Developed Spring Batch servers to migrate and transform data from an on-premises relational database warehouse to an AWS cloud environment.Implemented job scheduling using Quartz, with an API providing metrics to an Angular front-end application.Utilized Atlassian’s Bamboo continuous integration pipeline for deploying applications to Pivotal Cloud Foundry PaaS. Built Spring Batch servers responsible for moving and transforming data from an on-premises relational database warehouse environment out to a cloud AWS environment. The service schedule jobs through a quartz enable process while exposing and API responsible for displaying metrics to an Angular front-end application. Applications leveraged an Atlassian’s Bamboo continuous build pipeline to deploy out to Pivotal Cloud Foundry PaaS.

Boston, Ma, Us

Designed a Command Query Response Segregation (CQRS) system for Policy Lifecycle Management, responsible for transactionally saving policy events and publishing them via AWS Simple Notification Service (SNS).Developed a graph database implementation using Neo4j to map policy XML documents into a generic graph structure, enabling efficient searching and analytical reporting.Developed a graph database implementation with Neo4j that mapped Policy XML documents into a generic graph structure which enables the ability for it to be searched and operated on for analytical reporting.

Boston, Ma, Us

Participated in a Pivotal Labs Dojo, where I developed a future policy data layer using extreme programming and pair programming techniques. Implemented domain-driven design components responsible for publishing state into an event store.

Boston, Ma, Us

Independently developed a testing application that parsed and validated XML payloads from enterprise message queues. This application ensured data accuracy by validating it against publishing and consuming internal sources. The result was significant cost savings and increased efficiency in quality assurance.

Boston, Ma, Us

Created an XML parsing layer using IBM Websphere in a Java application to map elements from an XML message source to the Policy Domain Model. Responsibilities included coding, generating unit tests, updating mapping documents, and communicating requirements to team members.

Arlington, Virginia, Us

Operate and maintain satellite communication systems.Ensure reliable satellite links and communications.Coordinate SATCOM integration into operational plans.Provide technical guidance and training.Maintain records and prepare performance reports.

Terre Haute, In, Us

Researched the Hadwiger-Neslon problem, an unsolved math problem, through the applied use of graph theory, which include the use of C programming, as well as the creation of a high-level algorithm visualization using Javascript|HTML|CSS.Conducted multiple presentations to faculty and students explaining the Hadwiger-Neslon problem where the primary focus was breaking down the abstract mathematical concepts into a digestible and understandable form.

Arlington, Virginia, Us

Served as a team leader for a Satellite Transportable Terminal (STT) that was responsible for long haul communications of Brigade sized elements that directly supported digital communication needs of over 50 users in a tactical environment. Directly responsible for the training and development of 4 soldiers that included Army communication training as well as tactical combat training. Personally cited for commendation and achievement on five individual occasions while performing these duties.Operated, maintained, and was responsible for over $500,000 worth of military communication and tactical equipment.

Arlington, Virginia, Us

Master Of Information Technology, Computer Software Engineering

Bachelor Of Science (Bs), Computer Science