What does a Data Engineer do?

A data engineer owns major decisions around Python, SQL, Apache Spark and sets the technical direction for data & analytics projects. You'll spend your days splitting time between hands-on work, mentoring other team members, and working with stakeholders to figure out what's worth building next. This isn't a role where you just write specs and hand them off. You're expected to stay close to the work.

The people who do well in this role tend to be strong in Airflow, Snowflake, AWS (S3, Glue, Redshift), but more importantly, they know how to figure out what they don't know. Data & Analytics moves fast, and the best data engineers are the ones who can adapt without needing someone to hand them a playbook every time something changes.

Right now, data engineer roles pay in the range of $115,000 - $170,000, and most positions are looking for mid-senior level candidates. It's a competitive field, but companies are hiring. If you've got the right skills and can show real project work, you're in a strong position.

How to get there

Build your foundation in data engineer

Before anything else, get solid on the fundamentals. For data engineer roles, that means understanding Python and SQL at a level where you can explain them to someone else. Don't try to learn everything at once. Pick the core topics that show up in every job posting for this role and get genuinely good at them.

Get hands-on with Python and SQL and Apache Spark

Reading docs and watching tutorials won't get you hired. You need to actually build things with Python and SQL and Apache Spark. Set aside time every week to write code, run experiments, or practice in a real environment. Hiring managers can tell the difference between someone who has used a tool and someone who has just read about it.

Work on real projects

Find a messy dataset and clean it, analyze it, and present your findings. Kaggle competitions work, but a self-directed project stands out more. The goal is to have something concrete you can talk about in interviews. "I built X, it does Y, and here's what I learned" is worth more than any course certificate.

Get certified in Databricks Certified Data

For data engineer roles, certifications like Databricks Certified Data Engineer Associate actually carry weight with hiring managers. They won't get you the job on their own, but they signal that you've put in structured effort. If you're choosing between certifications, pick the one you see mentioned most in job postings for roles you want.

Target your first data engineer role

Most data engineer positions are mid-senior level and pay around $115,000 - $170,000. When you're applying, tailor your resume for each job. Use the exact skills and keywords from the posting. Don't be picky about company size or brand name early on. A role where you'll learn fast is more valuable than a prestigious name on your resume.

Grow from here

Once you've got a couple years as a data engineer, you'll have options. Roles like Quantitative Analyst, Data Architect, Decision Scientist are natural next steps in data & analytics. The key is to keep building depth in your specialty while picking up broader skills like leadership, architecture, and cross-team collaboration. Your career path isn't a straight line, but this gives you a strong starting point.

Skills you'll need

These are the skills that show up most often in data engineer job postings. You don't need all of them on day one, but you should be working toward them.

PythonSQLApache SparkAirflowSnowflakeAWS (S3, Glue, Redshift)KafkadbtData ModelingETL/ELTDelta Lake

Certifications that help

These won't get you hired on their own, but they show hiring managers you've put in real study time. Worth it if you're switching careers or don't have much experience yet.

Databricks Certified Data Engineer Associate

AWS Certified Data Analytics - Specialty