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Michael Roker Data Analytics 📊 Profile
Michael Roker Data Analytics 📊

@michaelroker

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Following
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Helping others to learn | Udacity Mentor | Data Analyst at Cable Bahamas | Daily tweets on Data | Feel free to DM me!

Nassau, Bahamas
Joined June 2021
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@michaelroker
Michael Roker Data Analytics 📊
4 years
Putting your work on GitHub probably is the best decision you can make to build your portfolio. But what makes a good project stand out? A good README. Here are 4 ways to make a good README: đź§µ
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@michaelroker
Michael Roker Data Analytics 📊
4 months
Analytics Engineer = translator between pipelines and BI. Stack: SQL • Git • dbt • Snowflake • Airflow. Deliverables: clean models, tests, docs, and a dashboard the business trusts. Start small, ship weekly, iterate.
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@michaelroker
Michael Roker Data Analytics 📊
4 months
nice add-ons: S3 for files, GitHub Actions for CI, MWAA to host Airflow, and dbt docs for the team. what would you swap in this stack?
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@michaelroker
Michael Roker Data Analytics 📊
4 months
guardrails: small warehouses per workload, 60s auto-suspend, query tags for cost. roles per layer + masking policies for PII. simple rules, big savings.
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@michaelroker
Michael Roker Data Analytics 📊
4 months
how it fits: Airflow pulls + lands data, then kicks off dbt. dbt builds RAW → INTERMEDIATE → REPORTING in Snowflake. clear ownership, quick debugging.
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@michaelroker
Michael Roker Data Analytics 📊
4 months
Snowflake = warehouse. elastic compute, separate storage/compute, auto-suspend/resume. zero-copy clone + time travel for safe testing and quick fixes.
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@michaelroker
Michael Roker Data Analytics 📊
4 months
dbt = transform. SQL-first models as code. tests out of the box. lineage + docs your execs can click. easy reviews in Git. keeps you portable across warehouses.
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@michaelroker
Michael Roker Data Analytics 📊
4 months
Airflow = orchestration. control run order, dependencies, retries, and alerts. schedule jobs, call APIs, watch files. one place to see the whole pipeline.
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@michaelroker
Michael Roker Data Analytics 📊
4 months
The “ultimate” data stack for small teams: Airflow + dbt + Snowflake. simple, fast, proven. here’s why:
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@michaelroker
Michael Roker Data Analytics 📊
10 months
Dumping your data into S3 doesn’t make it a data lake. A real data lake has: - ✅ A catalog (what's in there) - ✅ Permissions (who can access what) - ✅ Structure (partitioning, schema) - ✅ Query tools (Athena, Redshift, etc) Without these you just have expensive storage.
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@michaelroker
Michael Roker Data Analytics 📊
10 months
Pretty dashboards are great — they should be visually appealing. But if they aren’t helping your team make better decisions, what’s the point? A good dashboard doesn’t just look good. It drives action. It answers real business questions. Are your dashboards helping your team
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@michaelroker
Michael Roker Data Analytics 📊
1 year
Your first job in analytics is closer than you think. Keep pushing! đź’Ş
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@michaelroker
Michael Roker Data Analytics 📊
1 year
Upskill with Cloud & Advanced Tools: As you grow, learn tools that can give you an edge: •Cloud Platforms: AWS, GCP, or Azure. •Data Warehousing: Snowflake, Redshift, BigQuery. •Advanced SQL: Learn window functions, CTEs, and joins.
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@michaelroker
Michael Roker Data Analytics 📊
1 year
Network Like Crazy: Jobs are often found through connections. •Join data analytics communities (LinkedIn, Discord, Slack groups). •Attend meetups and conferences (virtual or local). •Reach out to professionals for advice – many are happy to help!
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@michaelroker
Michael Roker Data Analytics 📊
1 year
Showcase Your Work Online: Your portfolio isn’t enough if no one sees it. •Post on LinkedIn. •Write blog posts about your process on Medium. •Share visuals on platforms like Tableau Public.
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@michaelroker
Michael Roker Data Analytics 📊
1 year
Learn to Understand Business Problems: It’s not just about analyzing data – it’s about solving problems. Ask: •What does the business want to achieve? •How does this data help decision-making? Show that you can connect data to real-world outcomes.
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@michaelroker
Michael Roker Data Analytics 📊
1 year
Build a Portfolio: Your portfolio will make you stand out. •Use free datasets from Kaggle, Google Dataset Search, or open data portals. •Create: •Dashboards •SQL queries •Data cleaning projects
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@michaelroker
Michael Roker Data Analytics 📊
1 year
Learn ONE programming language: Start with Python (or R). •Python libraries like Pandas, Matplotlib, and Seaborn will help with data manipulation and visualization. •Don’t stress about coding perfectly. Focus on solving problems.
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@michaelroker
Michael Roker Data Analytics 📊
1 year
Start with the BASICS: Master the core tools you’ll use every day: •Excel/Google Sheets: For cleaning & analyzing data. •SQL: To extract and query data from databases. •Visualization Tools: Learn Tableau or Power BI to tell a story with your data.
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@michaelroker
Michael Roker Data Analytics 📊
1 year
Want to break into Data Analytics? Here’s your ultimate guide to learning the skills, building a portfolio, and landing your first job as a Data Analyst. 🧵👇
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