I am an application developer at IBM, where I develop iOS and android applications using native technologies, provide IT consulting for client companies, lead development teams, and support and test client applications. My work combines technical problem-solving with collaboration and leadership to deliver efficient, user-centered solutions. I hold a bachelor's degree in Computer Science from PUCPR, where I built a solid foundation in data structures, algorithms, databases, and software engineering. I am also an Apple Developer Academy PUCPR alumni, where I learned programming with Swift, interface design and UX interaction, business concepts, and metaskills. I completed several projects and challenges, both individually and in collaboration with other students, showcasing my creativity, communication, and problem-solving skills. My passion for software development and my desire to learn new technologies drive me to constantly improve my skills and explore new opportunities.

Performance Engineering Leader with 14+ years of experience specializing in end-to-end system performance across database, storage, network, and application layers. Expert in Oracle (12c/19c) and PostgreSQL performance tuning, including AWR/ASH analysis, SQL optimization, indexing strategies, and execution plan tuning. Strong expertise in storage performance engineering (SAN/NAS, Object Storage, S3 APIs) with hands-on benchmarking using fio, focusing on IOPS, throughput, and latency optimization. Experienced in network performance tuning using TCP/IP analysis and iperf, identifying latency bottlenecks and improving data transfer efficiency. Proven ability to design and execute large-scale performance tests (50K+ concurrent users, 10M+ API calls/day) using JMeter and BlazeMeter. Skilled in cross-layer bottleneck analysis spanning compute, database, storage, and network, delivering measurable improvements including 40% API latency reduction and 50% DB performance gains. Advanced experience in observability and monitoring (Dynatrace, Grafana, Splunk, AppDynamics), enabling proactive detection and resolution of performance issues in cloud-native and microservices environments.

Professional Summary: * 13+years Azure Cloud Software Azure Integrations Architect with a background in diverse of the .NET, analysis, design, development applications, with expertise in Cloud and Web applications. * Microsoft Certified Azure Developer (Certified Azure Developer) * Microsoft Certified Most Valuable Professional(MVP ) * Working as a Technical Architect- Azure Cloud with Microsoft Technologies * Collaborate with business stakeholders to understand business needs, strategies, objectives and translate them into technology solutions that drive business value. * Participate in code reviews and ensure code quality and adherence to standards. * Leading a Team both onsite and Offshore & Certificate in People Management * Ensure the scalability, performance, security of Application Development & Azure Services * Expertise with Azure Integration Services ( Azure Functions, LogicApps, ServieBusQueue, APIM) * Exploring with Large Language Models(LLMs), RAG, GenAI, Worked on Natural Language Processing(NLP), DeepLearning, Machine Learning Frameworks..

Principal Frontend Engineer / Staff Software Engineer with 20+ years of professional experience designing and delivering enterprise-scale software systems, frontend platforms, and technical architecture. Extensive background in enterprise application development, frontend architecture design, and system scalability across financial technology, healthcare, analytics, and enterprise platforms. Currently serving as Frontend Technical Lead Engineer at additiv AG, providing architectural leadership and technical strategy for enterprise financial platforms. Designed foundational frontend architecture adopted across the product ecosystem and contributed to research and development initiatives for core platform capabilities. Works closely with clients, product owners, and cross-functional teams to translate business requirements into scalable technical solutions.

Results-driven Data Analyst and BI Developer with 7+ years of experience helping businesses turn complex data into clear, actionable insights. I specialize in building interactive dashboards, automating reporting processes, and designing scalable data solutions that improve decision-making and operational efficiency. My expertise includes Power BI, SQL, Python, Excel, ETL pipelines, data modeling, and cloud platforms such as Microsoft Fabric, Snowflake, and Google Cloud. I have worked with global organizations across automotive, consulting, healthcare, and energy sectors, delivering solutions for executive reporting, KPI tracking, forecasting, customer analytics, and process optimization. I focus on understanding business needs first, then translating them into clean, accurate, and visually compelling analytics solutions. Whether you need a dashboard built from scratch, reports automated, messy data cleaned, or insights uncovered, I bring both technical expertise and business understanding to every project. If you're looking for someone reliable, detail-oriented, and committed to delivering measurable value through data, I’d be glad to help.

Hi, I’m Sacha 👋 I am a SaaS founder and former CTO with experience building and selling AI products. I help startups and businesses use data and AI to simplify complex problems, automate workflows, and build systems that scale. My background: ✅ Former CTO of ChatNode.ai where I scaled the product and exited in a $200K acquisition ✅ Ex CTO at a proprietary trading firm in Chicago supporting a business generating 8 figures annually ✅ Founder of multiple SaaS products in data and automation What I can do for you: ✅ Data Science & Analytics – cleaning, modeling, and visualizing data for better decision-making ✅ Automation & Workflows – streamlining operations and cutting manual work ✅ SaaS Consulting – helping you design, validate, and launch software products ✅ APIs & Integrations – building tools that connect smoothly with your existing stack Why work with me: ✅ Proven track record as SaaS founder and CTO ✅ Technical expertise combined with business insight ✅ Clear communication and fast delivery Let’s discuss your project. I’d love to help you build something impactful.

I have wide-range of commercial work experience in different organisations (from different industries), including Startup Companies to lead/setup their new business oriented products from scratch; and IT Services/Software Development Companies by doing rapid development on multiple projects in parallel. I feel comfortable in any work settings, as a team lead, as a team player or working independently. I have a strong software engineering background and a lot of experience in web development (MVC/Python/Javascript frameworks). My main area of expertise includes Data Engineering (Small or Big Data level), Data Mining, ETL/ELT Data Pipelines, Data Automation and Automated Bots/Crawlers. I have experience of handling up to 100s of billions of records and 100s of TBs of structured/unstructured data; migration to Big Data/SQL data stores and handling real-time data streams. I have experience of large scale data collection/scraping from web, I developed lot of crawlers in past and several jobs includes data collection up to 100s of millions of records in short period of time. Other areas of experience includes Full Stack Data Science and have professional master’s degree and research experience in Artificial Intelligence. Based on multi-dimensional experience, I helped setup several data heavy IT related startups from scratch and lead development on all aspects. I have solution providing skills and can adjust myself to any technical stack, programming language or framework to provide the solution. Following is a brief list of technical stacks, important skills, programming languages and tools that I have expertise or used in past: - Languages: Python (DJango, Flask), PHP (Laravel, Yii, Zend), Javascript (Typescript, Vue.js, Node.js, Angular), Java, C/C++, Perl, ASP Classic, Matlab - Databases/Data Streaming: PostgreSQL, MySQL, MariaDB, SQL Server, SSIS, Oracle, NoSQL (Redis, HBase, Hive, MongoDB), Kinesis, Kafka, RabbitMQ, Solr - Big Data Ecosystem: Hadoop, HBase, Athena/Hive, Spark, Redshift - Cloud: AWS (EC2, ECS, RDS, S3, Redshift, Kinesis, ElastiCache/Redis, Lambda, Cloudwatch), GCP - Data Science/AI: Machine Learning, Deep Learning, Scikit-Learn, Scipy, Pandas, Data Wrangling, Web Scraping - Customisation: Opencart, Magento, Wordpress, Drupal, Zencart, other - Other: DevOps, CI/CD, CircleCI, Ansible, Docker, Deployer, Datadog, Openwhisk, Nutch, Celery, Thrift, Selenium, Jupyter Notebook, Git, REST Apis, SSH, TDD, Reverse Engineering Skills, SEO, Good in adopting new stacks - Management: Agile, Scrum, Jira, Trello

- Full Stack Development Experience (ASP.NET MVC/ Django/Node.js ) - Understanding on how to build RESTFUL APIs and Web API - Frontend Technologies like JavaScript, HTML5, CSS3. - Wordpress/Woocomerce development/customization - Big data tools like Hadoop etc. - Adept in working with RDBMS/NoSQL databases - Sound knowledge of git(Version control) - Search platforms like Solr, Elasticsearch etc. - Ability to code following best practices with unit testing - NoSQL databases like Mongodb, CouchDB, Cassandra, Redis etc. - Understands Pros/Cons of client side caching and edge caching.Have a grip over the architecture. - Ability to work in a fast-paced and agile development environment. - Easily adapts and learns new things whether it's a new library,framework, process or a visual design concept. - Passion for releasing bug free code. - Working knowledge of Linux/Unix Based OS - Willingness to take on roles and responsibilities outside their comfort zone to get the job done. - Understanding of security related concepts/concerns within a full stack web application. - A smart and ambitious person with a passion to develop technologically advanced product with the ability to work in a team and having a willingness to learn new technologies.

I bring over 22 years of extensive experience in Full Stack development, specializing in sectors like insurance, banking, energy, and finance. My expertise spans Java (versions 8 to 21) and Spring, where I design secure microservices architectures and implement API Gateways with TLS encryption. I've successfully led the migration of legacy systems to modern technology stacks, ensuring smooth performance enhancements through advanced profiling. Additionally, I handle Big Data technologies like Spark and Kafka, and I leverage Python for automation and resilience. I also integrate Generative AI into business processes, enhancing automation and user experience. My proactive and curious approach allows me to tackle complex challenges head-on. If you're seeking a tech lead who combines strategic insight with robust technical skills, let’s discuss how I can contribute to your project.

Hello! Welcome to my profile. I am a professional with over 10 years of experience in Analytics and Data Engineering, specializing in leading teams and designing data architectures for the healthcare, insurance, credit, and technology sectors. I solve disconnected data challenges that prevent reliable decision-making by delivering automated pipelines, data governance frameworks, and production-ready models. Throughout my career, I have led hybrid and offshore teams, conducted proofs of concept (PoCs), and implemented governance practices aligned with DMBOK and Brazil's General Data Protection Law (LGPD). I have worked extensively with orchestration, analytical modeling, and deployments on AWS and Azure using Apache Airflow, Matillion, Snowflake, Databricks, and PySpark. Recent achievements: → Reduced resolution time for critical Data Warehouse incidents through hands-on support and effective prioritization of offshore teams; → Delivered variable books that supported scoring models, increasing the robustness of analytical datasets; → Implemented governance standards and automation solutions that reduced rework and accelerated the delivery of business insights. Day-to-day responsibilities: → Lead data engineering squads and offshore operations teams, defining priorities and technical requirements; → Orchestrate and automate pipelines using Apache Airflow and Matillion for Snowflake and Redshift; → Design data architectures and conduct proofs of concept to drive technological evolution. My key skills and areas of expertise include: → Systems – Snowflake, Databricks, Teradata, Oracle, Redshift, ServiceNow; → Tools – Apache Airflow, Matillion, Python, PySpark, Pandas, Scikit-Learn, Power BI; → Microsoft Office – Advanced Excel. Core Competencies: Data Leadership | Data Engineering | Data Architecture | Data Governance | Pipeline Orchestration | Analytical Modeling | ETL Automation | Feature Engineering