Hire the Best MapReduce Specialists in London, UK

Summary ✓ Total 10+ years of experience in developing enterprise data warehousing applications. ✓ 4+ years of experience in implementing end to end Snowflake data warehouse solutions. ✓ Experience in implementing snowflake platform solutions such as RBAC, Row Access Policies, Replication etc. ✓ Experience in Data modelling techniques such as Dimensional Modelling, Data Mesh. ✓ Demonstrated expertise in crafting complex SQL queries to analyze and manipulate large datasets. ✓ Experience working on SQL and NoSQL databases. ✓ Well versed in tools like Pentaho Data Integration, Informatica. ✓ Experience working with multiple clients like Schroders, Equifax, Logitech. ✓ Good experience in converting business requirements into Technical Requirements ✓ Collaborative team player with a track record of successfully tackling intricate data challenges. ✓ Excellent communication and interpersonal skills. ✓ Experience leading a data team from onshore. Technical Skills: ✓ Database: Snowflake, SQL Server, Oracle. ✓ Cloud Technologies: AWS, Azure. ✓ Programming: Python, JavaScript ✓ Scripting: SQL, Unix ✓ Processing Tools: DBT, Pentaho, Informatica. ✓ Orchestration: Airflow ✓ Reporting: Tableau, Streamlit ✓ Collaboration: GIT, SVN ✓ Operating systems: Windows, Linux

Data professional with over 6+ years of experience, I specialize in providing comprehensive data consulting and services. My primary focus is on empowering businesses to unlock the potential of their data, enabling strategic decision-making and operational efficiency. 💯 Top-Notch Data Services: ⭐ Data Engineering ⭐ Data Architecture ⭐ Data Modeling ⭐ Data Warehousing [ MDM, CDC, SCD ] ⭐ Data Lakes / Data Mart / Delta Lakes ⭐ Data Migration and Integration / Data Quality Assessment / Data Governance ⭐ Data Analytics and Visualization ⭐ Data Strategy And Consulting. ⭐ Database Design & Management ⭐ Project Documentation [ ISD / SMX / ERD ] ⭐ Training and Support. 🥇 Domain Experience ⚡ Insurance / Healthcare / Banking / Telecom / Microfinance ✅ Amazon Web Services ⚡ Redshift / RDS / S3 / Athena / Glue / Lambda / QuickSight / EC2 ✅ Microsoft Azure ⚡ Azure Data Lake / Azure Databricks / Azure Data Factory / Synapse ✅ Big Data Stack ⚡ Apache Spark / Apache Hadoop / Apache Airflow / Apache Hive / Apache Kafka / Cloudera / Databricks ✅ Data Visualization ⚡ PowerBI / Tableau / Azure Synapse / AWS QuickSight / Excel / Google Data Studio / IBM Cognos ✅ Languages & Libs ⚡ SQL / Python / Java / PL/SQL / C++ / .Net / JavaScript / JSON / Node.js / PySpark / Pandas / Numpy / Matplotlib / ReactJs / HTML / CSS / Django ✅ ETL & Other Tools ⚡ Teradata / Talend Data Integration / IBM Datastage / Informatics / Alteryx / Apache Airflow / Docker / Jenkins / Confluence / Jira ✅ Databases ⚡ Vertica / IBM DB2 / Teradata / Greenplum / PostgreSQL / Oracle / MySQL / MS SQL / Oracle Goldengate / Cassandra

A ❄ Snowflake Cloud Data Platform certified professional, Working as a Freelancer, strong experience in the filed of Data Engineering. Integrating Data From multiple sources, writing complex SQLs, analysing data. I have majorly worked on Snowflake Cloud Data Warehouse Projects. Below tasks I executed as my role : - Loading billion of record into Snowflake via Bulk Data Loading utility. - writing complex snowsql's and automating data refresh via task. - Create and Managing Snowflake objects like Database, Schema, tables, tasks. - Involved in admin activities eg. new users/roles creation, providing secure access. - Working on streams and Tasks to perform CDC on Snowflake. - Building Snowpipes to automatically ingest data. - Strong hold on writing SQL scripts of various business use case. Below are my other Skill Sets: - Databases: Snowflake, Oracle, SQL Server - ETL Tools: Talend Open Studio - DB Languages: SQL, SnowSQL. - Source Control: GitHub - Scripting/ Programming language - Java, Python, Unix. - Cloud Ecosystem: AWS

With over 6 years of hands-on experience in building and optimizing data pipelines, I specialize in delivering end-to-end data engineering solutions that scale. Whether it's setting up robust ETL workflows, migrating to the cloud, or implementing real-time data streaming, I bring a performance-driven approach to every project. 🔧 Core Skills & Technologies: Cloud Platforms: AWS (Glue, S3, Redshift, EMR), GCP (BigQuery, Dataflow), Azure Data Engineering Tools: Apache Spark, Airflow, Kafka, DBT, Hadoop Languages: Python, SQL, PySpark, Bash Databases: PostgreSQL, MySQL, Snowflake, MongoDB DevOps & CI/CD: Docker, Terraform, Git, Jenkins

Welcome to My Profile! Are you seeking a seasoned Data Engineer with a proven track record of delivering exceptional results? Look no further! With over 9 years of hands-on experience in Data Engineering and Data Warehousing, I bring a wealth of expertise to the table. Who Am I? I'm Waleed Malik, a dedicated and results-driven professional specializing in ETL & Data Warehouse Development, Data Engineering, and Data Analytics. Throughout my career, I've had the privilege of working with multinational organizations, managing vast amounts of data on a daily basis, and spearheading complex projects from conception to completion. What Sets Me Apart? My passion for data and relentless pursuit of excellence set me apart in the field. I thrive on challenges and am committed to delivering top-notch solutions tailored to meet your specific needs. Whether you're looking to build robust data pipelines, implement self-service BI solutions, or design bespoke data warehouses, I've got you covered. Why Should You Hire Me? Proven Expertise: With a solid background in SQL, AWS, Python, and other cutting-edge technologies, I have the skills and know-how to tackle even the most demanding projects. Reliability: I pride myself on my professionalism, integrity, and commitment to excellence. You can trust me to deliver high-quality work on time, every time. Clear Communication: Effective communication is key to any successful project. I provide regular updates, solicit feedback, and ensure that we're always on the same page. Customer Satisfaction: Your satisfaction is my ultimate goal. I go above and beyond to ensure that you're happy with the end result, offering a 100% money-back guarantee if you're not completely satisfied. Long-Term Support: I believe in building lasting relationships with my clients. Even after the project is completed, I'm here to provide ongoing support and assistance as needed. Let's Work Together! Whether you're embarking on a big project or need assistance with smaller tasks, I'm here to help. From data modeling and analysis to cloud server management and everything in between, I've got the skills and expertise to bring your vision to life. Let's collaborate to turn your data into actionable insights and drive your business forward. Get in touch today, and let's make great things happen together!

Who Am I? I’m a Senior Data Engineer with 7+ years of experience designing and deploying scalable data platforms, customer data platforms, real-time pipelines, and AI-ready analytics solutions. I've worked with global enterprises like WizzAir, Cisco, and Grainger My focus is on building robust, fault-tolerant data systems - from ETL/ELT frameworks to real-time stream processing and fully automated cloud-native infrastructures. Services I Offer - Full-cycle ETL/ELT pipeline development (batch & streaming) - Complex AI multi-agent systems - RAGs - Cloud migration from CRMs, blob storage or legacy infrastructure to AWS, Azure, or GCP - Real-time data architecture design (Kafka, Spark, Event Hub) - AI-ready platforms: from feature engineering to ML-triggered alerting - Interactive dashboarding, visualizations and modeling Key Project Highlights - Hadoop to AWS migration for a Fortune 500 company:: S3, EMR, Airflow, API integrations, and Terraform-based IaC - Real-time KPI platform for US telecom: Spark Structured Streaming, Kafka, Kubernetes, sub-second latency - AI-driven analytics platform (Danish retailer): medallion architecture, custom ETL builder, personalized offers, Power BI dashboard - CRM migration (Crio → Medidata): automated data transfer, schema validation, error alerts - Google Ads optimisation system: 11% cost reduction, 7% traffic increase, with GA & custom attribution modeling - WizzAir data platform POC: DBT in Azure containerized architecture, orchestrated via Data Factory, with Great Expectations for quality control Let’s Talk If you're looking for a senior data engineer who brings production-level thinking, scalable systems, and deep cloud expertise - let's chat. I can help turn your data infrastructure into a reliable growth engine. Reviews: ⭐⭐⭐⭐⭐ - Nima Sotoadeh, CEO of Broya Nick has been an incredible asset to us at Broya. His data engineering expertise is not only profound but also practically applied to real-world problems. His work has significantly contributed to the success of our projects and data pipeline creations. He is a true professional and a pleasure to work with. ⭐⭐⭐⭐⭐ - Ruslan Kravets, CEO of Medikit Working with Nick has transformed our approach to data management at Medikit. His contributions were crucial in developing an efficient and automated data management system, complemented by real-time dashboarding, which has streamlined our operations and decision-making processes. Beyond his technical expertise, Nick's commitment to excellence has played a key role in enhancing our data handling capabilities and overall operational efficiency.