Resume Senior Full Stack Developer in USA Pittsburgh

Senior Full Stack Developer
Handymen - Working specialties
100000 $
USA (Pittsburgh)
13-08-2025
Contact person: Kareem Maize
Country of Residence: USA
Age: 37
Phone number: show
Experience:
WORK EXPERIENCE 10/2024 – Present Senior Software Engineer, ONE MAIN FINANCIAL Remote Spearheaded a strategic overhaul of financial software utilizing Java Spring Boot, resulting in zero reported system outages during peak transaction periods in the first quarter. Engineered the design and implementation of a real-time data streaming platform employing Apache Kafka, attaining a 40% enhancement in the throughput of financial transaction processing, based on performance analysis. Devised fully documented custom Jenkins shared libraries that supported over 20 development teams, leading to a significant reduction in production incidents and earning recognition as the team's subject matter expert. Collaborated closely with data engineering teams to develop highthroughput data pipelines using BigQuery and SQL, optimizing analytics workflows and curtailing query time by 40%. Formulated operational tooling and monitoring dashboards utilizing Python and Splunk, augmenting observability and reducing incident response time by 60%. Revamped data handling by implementing high-performance stored procedures, yielding a 25% increase in transaction processing, while addressing the top three causes of system slowdowns across eight systems. Championing code review processes with SonarQube, fortified software against vulnerabilities and elevated code quality scores by 35%, achieving a 20% reduction in security-related production incidents annually. Reformed code review procedures, applying SonarQube to enforce stringent coding standards, securing a 99.99% uptime across all applications and earning the 'Team Choice' award. Piloted the re-architecture of legacy services into cloud-native GCP microservices, leveraging IAM, Cloud Functions, and Cloud Run to decrease infrastructure costs by 30% and enhance deployment velocity. Launched API documentation and testing with Postman, generating over 100 comprehensive documents and test suites that facilitated smoother onboarding for new developers. Guided agile development sprints utilizing JIRA, resulting in a 30% uptick in team velocity, aligning technical projects with business strategies, while mentoring three junior developers. Conducted application performance tuning, addressing over 10 code-level inefficiencies weekly, and consistently achieving sub-second response times for core financial services transactions for six months. Fortified AWS environments through the implementation of multi-factor authentication (MFA) and role-based access control (RBAC), limiting privilege escalation attempts to zero within six months. Deployed Ruby-based solutions for core banking systems, enhancing transaction processing speeds by 30% and increasing customer satisfaction scores by 15% across the platform. 08/2020 – 10/2024 Senior Software Engineer, BlackLine Woodland Crafted resilient Spring Boot microservices utilizing Spring Cloud and Spring Security for secure authentication, enhancing scalability across transaction management systems and achieving 30% faster integration with legacy systems. Leveraged PostgreSQL, MongoDB, and Redis databases with JPA and Kotlin extensions to expedite data processing speeds by 40%, supporting over 500,000 daily transactions. Pioneered a fraud detection system using the Ruby on Rails framework, successfully flagging over 90% of high-risk transactions and preventing an estimated annual loss of $500,000. Mastered Ruby scripting to build monitoring tools that identified 95% of system anomalies before user impact, averting at least five major production incidents per quarter. Championed the integration of financial APIs with third-party services, reducing fraudulent transactions by 22% and streamlining credit approvals, resulting in a 15% increase in new account openings. Transformed monolithic architecture into modular Spring Boot microservices using gRPC, achieving a 40% boost in system scalability and trimming maintenance time by 25%. Cultivated a team of five junior Java developers through continuous code reviews and architectural mentorship, expediting project delivery timelines by 15%. Instituted Terraform-based Infrastructure as Code (IaC), enhancing deployment frequency by 40% and eliminating configuration errors to zero, which improved application recovery time by 35% and consistency. Orchestrated high-throughput messaging pipelines with Apache Kafka, instigating replication for fault tolerance and achieving 99.9% message reliability across distributed services, which improved system uptime and elevated customer satisfaction. Initiated Apache Spark Streaming with Kafka and HDFS, facilitating realtime data processing of over one million records hourly through scalable streaming pipelines and snapshotting, enhancing fault tolerance. Reconfigured DynamoDB data models, achieving a 20% improvement in query performance and reducing AWS infrastructure costs by 15% through strategic application of on-demand capacity modes. Employed JUnit alongside advanced test automation, realizing 90% code coverage and accelerating testing cycles by 35% through parameterized testing and mocking external dependencies for robust code quality. Collaborated tightly with front-end teams using JavaScript/TypeScript (Next.js, React) to unify user-centric services, increasing RESTful API performance by 40% while reducing authentication time by 25%. Engineered event-driven architectures with AWS Lambda, enabling processing of 100,000 events per minute, enhancing scalability, and cutting healthcare data delivery times by 25%, thus meeting critical SLAs. Deployed microservices on Azure Kubernetes Service (AKS) for financial applications, configuring scaling policies that managed a 400% surge in transactions without performance degradation and ensured zero downtime. 06/2017 – 04/2020 Sr. Software Engineer, Ro NY Designed and executed REST-based microservices using Spring Boot, accelerating healthcare service delivery through API management, which increased operational throughput by 40% and decreased latency by 15 milliseconds. Piloted the deployment of AWS cloud services, including Lambda and S3, achieving a 99.99% uptime for critical healthcare applications while realizing a 40% cost savings on prior infrastructure. Architected a regulatory compliance monitoring system for telehealth using JEE Design Patterns, successfully averting 15 compliance breaches and facilitating seamless updates to operational standards across the organization. Enhanced patient data security by implementing Azure Active Directory (AAD) and role-based access control (RBAC), achieving HIPAA and GDPR compliance with 100% completion of assigned security tasks on time. Developed robust data pipelines with Apache Kafka, processing over 500,000 healthcare transactions per day with sub-10ms latency and ensuring 99.999% uptime, which was critical for immediate clinical decisions. Integrated MongoDB clusters and JavaScript, overseeing data storage for over 250,000 patient records and enabling secure retrieval within subsecond response times as verified by internal audits. Managed device-related datasets across a wide-area network, establishing robust storage solutions using PostgreSQL, Amazon RDS, and Oracle databases, achieving data integrity with 99.99% availability. Strengthened Aurora PostgreSQL clusters by configuring read replicas for load balancing and implementing automated failover protocols, ensuring near-zero downtime with 99.99% uptime. Revitalized legacy healthcare data processing by recoding algorithms to process 5,000 patient records per hour, significantly improving data retrieval times and optimizing accessibility. Engineered secure APIs for healthcare systems, streamlining data access and ensuring a 99.9% uptime, facilitating predictive analytics for enhanced patient care and improved healthcare outcomes. Established stringent security protocols with quarterly audits for healthcare data access; uncovered and remediated 10 previously unknown vulnerabilities during the first audit, surpassing HITECH requirements. Transformed software solutions by developing CI/CD pipelines with Jenkins and Docker, leading to 99.99% availability of backend applications and a 25% improvement in team velocity. 01/2014 – 03/2017 Full-Stack Developer, NextToll NY Accelerated the transition to a SaaS product by architecting and launching a Spring Boot-based cloud platform; enhanced user onboarding by 15% and bolstered platform reliability for global finance tasks. Pioneered the implementation of Apache Spark for processing large-scale financial data within AWS S3, achieving a 30% increase in data processing speeds through orchestrated data pipelines that delivered real-time investment insights. Deployed a new ReactJS component library for UI/UX teams, reducing front-end coding errors by 15% and enhancing code maintainability across the application. Fortified Hadoop's data security by implementing Kerberos authentication, exceeding compliance mandates during three audits and establishing encrypted communication channels across over 50 nodes within the big data ecosystem. Conceived a real-time device supervision dashboard for financial trading terminals using Angular, enabling clear monitoring of terminal states and secure communication, streamlining problem resolution by 60%. Implemented stringent Git branching protocols across three development teams, decreasing code merge conflicts by 40% and accelerating feature release cycles by approximately 25% within six months. 01/2010 – 01/2013 Java Developer, Boston SoftDesign Newton Engineered a real-time inventory platform using Object-Oriented design principles, improving order fulfillment accuracy to 99.9% and reducing order processing time by 35% within the supply chain. Developed interactive, customer-centric interfaces for high-traffic insurance platforms utilizing JavaScript, boosting user engagement by 20% and enhancing overall customer satisfaction scores. Implemented the Structs framework for Web-tier development. Created web applications using JSP, Struts Action classes, and Struts Forms.
Education:
the University of Pennsylvania Bachelor of Science, Computer Science
Skills:
Java 17/11/8 Kotlin Ruby Python JavaScript/TypeScript SQL Java/J2EE Struts Spring MVC Spring Boot Spring Security Spring Batch Spring AOP Spring Integration Spring Cloud Hibernate JPA Node.js React Next Vue Angular EC2 Lambda Fargate S3 EBS RDS DynamoDB IAM Amplify Azure AD RBAC AKS AAD PostgreSQL MySQL MongoDB Oracle Cassandra GitHub actions Gitlab Terraform Docker Kubernetes Shell PowerShell Bash Git (BitBucket, GitHub, GitLab) OAuth2.0 JWT Kerberos Jenkins Maven JUnit Selenium Mockito Apache Spark Java Application Development IT Infrastructure Management Project Coordination & Delivery Application Testing & Solutioning Software Development Lifecycle IT Integration & Enhancement Infrastructure as Code (IaC) Process Enhancement Cross-Functional Coordination
Language skills:
English
Additionally:
NA
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