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Software Developer with over 10 years in full-stack development, specializing in Golang, CI/CD, and cloud solutions. Proven track record in building scalable, API-driven applications and leading technical integrations. Skilled in optimizing backend processes and developing intuitive frontend interfaces, with strong experience in DevOps and cloud deployments.

■ I 'am a seasoned software engineer with more than 25 years of experience in developing great software & bringing to life awesome apps ■ I will take ownership of your project & bring it to fruition quickly & without burning a hole in your pocket ■ I have built several micro-services & REST-based services & applications ■ I have built desktop apps, web apps, & mobile apps for Fortune-500 companies as both an independent contractor & as part of large software development teams ■ I have experience in setting up & migrating apps & services on to the Cloud - be it AWS, Azure, or GCP ■ C, C++, GoLang, Java, Python, Javascript, Typescript, React, Vue, Flutter, Jenkins, Groovy, Docker, Kubernetes, SQL, Postgres, Informix, Oracle, SQL Server, Elastic-Search, Elastalerts, Grafana, Istio, Kiali, JUnit, Selenium, JMeter, K6.

I am a full-stack developer with over 20 years of experience. My skills cover a broad range of technologies and languages. This depth of experience has given me a comprehensive understanding of software development and delivery. I can take on projects solo or build a team, depending on the scope and schedule of the project. Project highlight: developed GM's eCommerce platform. I spent nearly seven years of my career bringing the car buying process online. First for GM, then for Ford. My specialty is custom software development with my favorite technology stack: Go, Firestore and Vue.js.

🔧 Golang Developer | Backend Systems Expert | Cloud & Microservices Enthusiast I am a highly skilled backend developer with deep expertise in Golang and extensive experience in building scalable, high-performance systems. My background includes working with microservices architecture, distributed systems, and cloud-native solutions. I specialize in designing robust, secure, and maintainable backend applications that power modern businesses. What I Do Best: 🚀 Backend Development Design and implement highly efficient backend systems using Golang & Python Build scalable microservices with a strong focus on performance & security Optimize and refactor existing codebases for better maintainability and speed 🔗 API Development & Integration Develop RESTful APIs that are well-structured, optimized, and secure Ensure APIs are scalable and follow industry best practices Seamlessly integrate third-party APIs into existing infrastructures 🗄️ Database Design & Optimization Expert in PostgreSQL, MongoDB, and SQL for efficient data storage and retrieval Optimize database performance through indexing, partitioning, and caching strategies Implement database migrations and schema evolutions in a controlled manner ⚙️ Cloud & DevOps Deploy and manage applications using Docker & Kubernetes Implement CI/CD pipelines for seamless deployments and automated testing Work with cloud services (AWS, GCP, or Azure) for scalable infrastructure 📊 Event-Driven Architecture & Messaging Systems Proficient in Apache Kafka for handling high-throughput data streams Build asynchronous processing pipelines for event-driven microservices Tech Stack & Skills: ✅ Languages & Frameworks: Golang, Python, SQL ✅ Databases: PostgreSQL, MongoDB, SQL ✅ API Development: RESTful APIs, gRPC ✅ Infrastructure & DevOps: Docker, Kubernetes, CI/CD, Cloud Deployments ✅ Messaging & Streaming: Apache Kafka, RabbitMQ ✅ Version Control & Collaboration: Git, GitHub Why Work With Me? 🔥 Problem-Solving Mindset: I love tackling complex challenges and optimizing systems for scalability and performance 🔍 Detail-Oriented Approach: Clean, maintainable, and well-documented code is my priority 📅 Reliability & Professionalism: I deliver high-quality work on time, ensuring smooth project execution Let's build something amazing together! 🚀

Currently, I am a full-stack developer with expertise in Go and over seven years of experience in creating CLI programs, desktop GUI applications for Linux and Windows, as well as mobile and web applications using Flutter (Dart). Additionally, I bring over 15 years of experience in other programming languages, including C/C++, PHP, and JavaScript (React, Vue), alongside extensive knowledge of networking spanning more than 15 years.

𝐌𝐢𝐜𝐫𝐨𝐬𝐨𝐟𝐭 𝐏𝐨𝐰𝐞𝐫 𝐁𝐈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫 // 𝐏𝐨𝐰𝐞𝐫 𝐁𝐈 𝐂𝐨𝐧𝐬𝐮𝐥𝐭𝐚𝐧𝐭 // 𝐄𝐱𝐞𝐜𝐮𝐭𝐢𝐯𝐞-𝐋𝐞𝐯𝐞𝐥 𝐃𝐚𝐬𝐡𝐛𝐨𝐚𝐫𝐝𝐬 I am Zeshan Ather, a Top 1% Expert-Vetted Professional on Upwork. Based in Silicon Valley, San Francisco, I bring over 11 years of experience in Data Analytics, Business Intelligence, and Data Science - including 9 years at Hewlett Packard Enterprise. With a Master’s in Computer Science (Data Science specialization, Software Development minor), I combine academic rigor with hands-on industry expertise to deliver enterprise-grade solutions. My career has been built on helping businesses unlock the full value of their data - whether through intuitive BI dashboards, scalable data pipelines, or AI/ML models that power predictive decision-making. 💡 What I Deliver: - Business Intelligence Dashboards: Power BI, Tableau, Qlik - executive dashboards, KPI tracking, drill-down analytics. - Data Engineering & Integration: ETL/ELT pipelines, SQL-based data modeling, Azure Synapse, Databricks, AWS Redshift, Snowflake. - Advanced Analytics & AI/ML: Forecasting, Churn Prediction, Recommendation Engines, NLP, Anomaly Detection, Predictive Maintenance. - Data Science Solutions: Machine Learning pipelines, Statistical Modeling, TensorFlow/Scikit-learn, Natural Language Processing, Experiment Design. - Cloud Data Platforms: Azure Data Factory, Azure Data Lake, Synapse Pipelines, AWS S3/Redshift, Snowflake, Delta Lake. - BI tools: Tableau/Tableau Server, Mode Analytics, Power BI, Oracle Hyperion, PowerPivot, PowerView, Looker, Mode, Sigma, Omni, Evidence - Database Platforms: SQL Server, MySQL, Amazon Redshift, Snowflake, Hadoop, Google Cloud, BigQuery, Postgres, Oracle, Supabase - SQL, Python, Hive, CMS integration, AWS - Agentic AI - Claude, Cursor 🔧 Technical Expertise: ✔️ BI Tools: Power BI, Tableau, QlikView, SSRS ✔️ Programming: Python, R, SQL, Scala, Spark, PSQL, DAX, MDX ✔️ Data Science: TensorFlow, PyTorch, Scikit-learn, Azure ML, NLP, Forecasting Models ✔️ Data Engineering: Azure Synapse, Data Factory, Databricks, Delta Lake, AWS Redshift, Snowflake ✔️ Databases: SQL Server, PostgreSQL, Vertica, MySQL ✔️ Modeling: Dimensional modeling, star/snowflake schemas, KPI frameworks ✔️ Security & Compliance: HIPAA, GDPR, PHI de-identification, RBAC, Row-Level Security 🌍 Trusted by Global Clients: - HPE (USA) - Data Analyst and Business Intelligence specialist - NHS (UK) – Healthcare dashboards & predictive models for patient outcomes. - Omni Tax Help (USA) – Sales analytics & forecasting models to improve client acquisition. - RealDefense (USA) – Product telemetry analytics + anomaly detection for cybersecurity products. - Inspire & Rozetree (USA) – Social media engagement analytics & automated campaign reporting. - MOTOR Magazine (USA) – Retail & operations analytics dashboards on AWS Redshift & Tableau. ✅ Why Work With Me: - 9+ years of end-to-end project delivery across BI, Data Science AI. - Strong communicator: making complex analytics clear to business leaders. - Proven success with 100% client satisfaction & 5★ reviews on Upwork. - Trusted by enterprises across healthcare, finance, marketing, retail, and cybersecurity. 👉 Whether you need BI dashboards, predictive ML models, or enterprise scale data pipelines, I deliver outcomes that move the needle for your business.