Software Engineer Senior

Brook Tarekegn Assefa

Las Vegas, NV 702-***-**** **********@*****.*** https://www.linkedin.com/in/brook-tarekegn/ PROFESSIONAL EXPERIENCE

LLM Engineer Intern - Hum Works LLC January 2024 - Preset

● Developed Lodestone v2.0, a long-context text embedding LLM, for millions of daily users and over 100 B2B clients.

● Performed data ingestion, preprocessing, and curation for over 1 billion training and testing pairs.

● Researched Low-Rank Adaptors (LoRA) and Single Value Decomposition (SVD), achieving an 80% improvement in rank estimation.

● Engineered prompts for Gen AI models, improving recommendation accuracy by 55%.

● Refined model hyperparameters through iterative testing and enterprise software tools, enhancing predictive accuracy by 18% and reducing computation time by 38%

● Collaborated with product teams and machine learning engineers on model deployment.

● Applied statistical techniques for data-driven insights and used Kusto for data querying. Enhanced data querying efficiency by 45%. Tools: Google Cloud Platform (GCP), Colab, GCP Vertex AI, GCP Functions, GCP Storage, GCP Datastore, GCP Document AI, GCP Pub/Sub, Snowflake, Hugging Face, NVIDIA GPUs, Milvus, Pinecone, Llama2-7B, Mistral 7B. Skills: Python, R, TensorFlow, Keras, PyTorch, Apache Spark, MySQL, SQLite, ML Modeling,Text Preprocessing, NLP, Large Language Models

(LLMs), Hugging Face Transformers, Langchain, Llamaindex, PEFT, RLHF, Adaptability, Attention to Detail, Problem-solving Skills. Project Lead and Data Scientist - Steven Stone March 2023 – March 2024

● Led a team to develop a competitive e-commerce product, resulting in a 74% revenue increase.

● As a technical lead, I contributed to informed business decisions and achieved 40% sales precision.

● I improved data accuracy and efficiency by 30% by analyzing complex, high-volume data.

● I enhanced project success rates by 27% by leveraging data science to communicate insights effectively. My customized solutions increased operational efficiency by 15%.

● Designed and delivered customized reporting, analysis, and modeling solutions tailored to specific business needs, increasing decision-making efficiency by 44% through advanced data science approaches. Tools: AWS EC2, SageMaker, Redshift, Lambda, QuickSight, DynamoDB, Docker, Kubernetes. Skills: NLP, LLM, Tokenization, Python, Semantic Analysis, JavaScript, Vue.js, Databricks, Distributed Training, statistical analysis, Prompt Engineering, market segmentation, data visualization, Model Performance Monitoring, Business Insights, Analytical Skills, DevOps, Communication, Collaboration, Problem-solving Skills. Team Lead and Senior Software Engineer - Excellerent & Rideau Solutions March 2021 – March 2023

● Developed customized solutions for over 15 Fortune 500 companies, using ML and AI for predictive analytics and fraud detection.

● Achieved 95% test coverage through conducted testing, while managing core features and leading frontend/backend development.

● Researched static code analysis tools, achieving a 55% code quality improvement. Tools: ESLint, SonarQube, ReSharper, Veracode, Plunker. Skills: Azure VMs, Cognitive Services, Power BI, Excel, Angular.js, .NET, Research Writing, management skills, work cross-functionally, data analysis, analytics tools, program management, analytical problem solving. Senior Backend Blockchain Developer (Contract) - MyCointainer August 2022 – March 2023

● Built a Cryptocurrency Mining Application, applying logistic regression and time series models to improve efficiency, reducing costs by

$300 per day.

● Integrated with top third-party pool providers using machine learning for predictive analytics, boosting productivity by 3 folds.

● Developed a Cryptocurrency miner reward distribution subgraph with TDD and data-driven analysis, increasing reward accuracy by 47%. Tools: Ropsten, Testnet, MetaMask, Electrum, CGMiner, GitLab, Remix for Solidity. Skills: TypeScript, C++, Jest, Apollo Federation GraphQL, Docker, confident interpersonal communication, analytical & innovative decisions. Core Frontend Developer - Proxify January 2021 – July 2022

● Enhanced the Administrator section of the Internal Platform, increasing usability and performance by 83%.

● Deployed products and resolved over 200 technical issues, significantly improving system stability and user satisfaction.

● Wrote comprehensive Core API documentation for more than 10,000 freelancer community members. Tools: Sentry, JetBrains Profiler, Visual Studio Code, DataDog, Selenium. Skills: PHP, Microservices, global sales, project actionable plan, TypeScript, MySQL, MongoDB, PostgreSQL, React.js, Figma, Node.js, Event-driven architecture, collaboration, Consulting. Senior Software Engineer - Beez Social ERP July 2019 – December 2020

● Led the development of Enel Group's ERP system, enhancing efficiency for over 50,000 employees.

● Managed a team of 10 in enhancing frontend functionalities for Customer and Administrator Web Applications.

● Optimized SPA deployments and automated CI/CD Pipelines, achieving 99.3% uptime. Tools: Visual Studio Code, HP UFT, LoadRunner, Postman. Skills: JavaScript, React.js, React Native, Flutter, Laravel, Vue.js, Node.js, management skills, statistical analysis, problem solving, collaboration skills. Senior Software Engineer - DVentus Wind Technologies November 2018 – June 2019

● Achieved 88% test coverage through comprehensive end-to-end testing of Electric and Water Smart Meter Administrator dashboards.

● Implemented a Payment System Integration for Smart Meters, improving ease of payment and usability by 200%. Tools: AWS EC2, S3, SoapUI, Selenium, Postman, API Gateway, Jenkins, Docker, Kubernetes, Terraform, GitHub Actions, CircleCI. Skills: Java, Spring Framework, Hibernate, JDBC, Maven, JUnit, innovation, adaptability, Java EE/WebAPIs, Angular.js, collaboration. Full Stack Engineer - Encubators January 2017 – July 2022

● Developed a range of core platform features from inception to MVP, including payment gateway integration and funding locations.

● Promoted to Senior Developer for significant contributions, developing major features, and maintaining 75% of the company's codebase.

● Achieved 91% test coverage for implemented features in both customer and administrator sections as the foundational base, ensuring robust functionality and usability.

Tools: GitHub, AWS S3, EC2, Social media content creation platforms. Skills: Leadership, Research, Python, JavaScript, TypeScript, Project Management, Vue.js, Node.js, self-motivated, brain-storm innovation. EDUCATION

University of Virginia - School of Data Science Charlottesville, VA M.S. Data Science (CeDiD: 24WN-SITZ-BBA3, Name: Br), GPA: 3.75/4.00 Graduated May 2024

• Notable Courses: Deep Learning, Big Data Systems, Bayesian Machine Learning, Statistical Learning, Operations Research. University of North Dakota - School of Mathematics Grand Forks, ND MATH 166: Calculus II in Mathematics, GPA: 4.00/4.00 Graduated August 2022 Addis Ababa University- School of Natural and computational Sciences Addis Ababa, ET B.Sc. Computer Science, GPA: 3.6/4.00 Graduated June 2018 Languages:- English C1 level proficiency (Emmersion Certification), French (Elementary), Amharic (Native)

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