ETL Developer / Data Integration Engineer

Impact: Data / Analytics Impact

Designs and builds ETL/ELT pipelines that extract data from diverse sources, transform it for analytics, and load it into data warehouses, ensuring data quality and pipeline reliability.

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What does an ETL Developer / Data Integration Engineer do?

What the work is really like

You write code that moves data from where it lives to where analysts and scientists can use it. Most of your day goes into building pipelines that extract records from databases, APIs, and flat files, then transform those records to match a warehouse schema and load them into Snowflake, BigQuery, or Redshift. The work sits between software engineering and data architecture. You are not modeling predictions or building dashboards; you are making sure clean, reliable data arrives on schedule so others can do that work.

A typical day includes writing SQL to join and reshape tables, configuring Informatica or dbt transformations, and monitoring Airflow jobs that run overnight. When a pipeline breaks, you debug. Maybe the source schema changed without warning, or a join returned duplicates because someone added a row in an upstream system. You trace the error, patch the logic, and rerun the load. You also spend time writing data quality tests: row counts, null checks, uniqueness constraints. Those tests run after every load, and when they fail, you find out why before the data reaches production.

Your stakeholders are data analysts, business intelligence developers, and data scientists who depend on your pipelines to run on time. They need customer activity data refreshed every morning and financial records reconciled weekly. When something is late or wrong, they message you. Communication is steady but asynchronous. Most of your work happens alone in a code editor and a SQL client, though you attend standups and join Slack threads to explain delays or discuss new source systems. The cadence is predictable, and surprises come from upstream changes rather than shifting priorities.

Skills and strengths that matter

You need solid SQL. You will write joins, window functions, and CTEs every day, and the queries often run against millions of rows. Performance matters, so you learn to spot inefficient patterns and rewrite them. You also need to understand data warehouse design: star schemas, slowly changing dimensions, and partitioning strategies. These are not theoretical concepts; they shape how you structure every transformation.

You work with ETL and orchestration tools. That might mean Informatica PowerCenter, Talend, or dbt for transformation logic, and Apache Airflow or Prefect for scheduling and dependency management. Some pipelines are drag-and-drop visual workflows; others are Python scripts with error handling and retry logic. You will also work with newer ELT platforms like Fivetran or Stitch, where the tool handles extraction and you focus on transformation in the warehouse. The specific stack varies by company, but the skills transfer.

Process thinking is central. You think in directed acyclic graphs: this table depends on those two sources, and that downstream model depends on this one. You write pipelines that can recover from partial failures and restart without duplicating data. A strong data quality mindset matters too. You do not assume the source is clean. You check for nulls, duplicates, and orphaned foreign keys, and you build tests that catch problems before they reach analysts. When something breaks, you explain clearly what went wrong and when it will be fixed. Debugging is collaborative, even when the coding is solo.

Who tends to thrive here

You like structure. Tidy schemas, repeatable processes, and code that does the same thing every time you run it. The work rewards patience and attention to detail more than speed. You are comfortable spending half a day tracking down why a row count is off by twelve, and you find satisfaction in writing logic that handles edge cases cleanly. If you enjoy organising messy information into something orderly and reliable, this role will suit you.

You prefer deep focus over constant interaction. Most of your day goes into writing and testing code, not sitting in meetings. Collaboration happens in pull requests, design reviews, and Slack threads, and it matters when it happens, though the bulk of the work is individual. You also need to tolerate repetition. Many pipelines follow similar patterns: extract, clean, join, aggregate, load. You will write variations on the same logic dozens of times, and that steadiness is either calming or dull depending on your wiring.

This work drains people who want to see immediate impact or who need variety in their day. The feedback loop is long. You build a pipeline, it runs nightly for months, and if no one complains, it is working. People who want to shape product decisions or talk directly with end users often feel distant from the outcome. The role also fits poorly if you dislike technical firefighting. Pipelines break, sources change, and you will spend some of your time fixing things that were working yesterday.

How people get into the role and grow

Most ETL developers start with a bachelor's degree in computer science, information systems, or a related field. You do not need a specialised data engineering program; a solid grounding in databases and programming is enough. Some people enter from adjacent roles: a SQL-heavy analyst who starts automating reports, a database administrator who picks up Python, or a software engineer who moves into data infrastructure. Internships and early-career roles often focus on maintaining existing pipelines and writing basic transformations under supervision.

Your first one to two years go into learning the stack and building fluency in SQL and your company's ETL tooling. You take ownership of a few pipelines, add new data sources, and write quality checks. By year three to five, you are designing pipelines from scratch, making architectural decisions about how to model data, and mentoring newer developers. Senior roles involve less hands-on coding and more system design: choosing tools, setting standards, and planning migrations to new platforms.

Progression splits into two directions. You can move into a data integration architect or principal data engineer role, where you design enterprise-wide data platforms and make decisions about cloud infrastructure and governance. Or you can shift laterally into analytics engineering, where you focus more on modelling data for specific business use cases using tools like dbt. Some people also move into data platform or DevOps engineering, where the focus is on infrastructure rather than transformation logic. The field is growing steadily as more companies centralise their data and expect it to be accurate and available on demand. If you want to see whether this shape of work matches the way you already think, CareerMatch can plot it against the rest of who you are.

From people working as an ETL Developer / Data Integration Engineer

As an ETL Developer, I spend my days wrangling data, building robust pipelines, and ensuring data quality. It's a mix of coding, problem-solving, and collaborating with data scientists and analysts to deliver reliable data for insights.

Researched from r/dataengineering, dbt Community Slack, TDWI (The Data Warehousing Institute)

A day in the life of an ETL Developer / Data Integration Engineer

People interaction
Moderate
Team vs solo
45% Team / 55% Solo
Client facing
Rarely
Impact visibility
High
Travel
Minimal
Schedule flexibility
Flexible
Remote work
Mostly Remote
Typical work hours
40-45
Stress level
Moderate

ETL Developer / Data Integration Engineer salary, education and outlook at a glance

Median salary
$139,500
Derived/proxy occupation
Salary proxy: U.S. Bureau of Labor Statistics, May 2025 National OEWS · SOC 15-1243.00
Uses the closest published occupation because BLS does not publish a separate wage series for this exact title.
Entry-level
$86,240
Senior
$204,000
Growth by 2033
+10.0%
Demand
Growing
Freelance potential
High
10th-to-90th percentile pay range
137% from entry to senior
Typical student debt
Moderate

Skills you need as an ETL Developer / Data Integration Engineer

Hard skills

  • ETL Tools (Informatica/Talend/dbt/Fivetran)
  • SQL & Data Warehouse Design (Snowflake/BigQuery/Redshift)
  • Python / Apache Airflow / Data Quality Frameworks

Soft skills

  • Data Quality Mindset
  • Process Thinking
  • Stakeholder Communication

Technical complexity: High

Tools an ETL Developer / Data Integration Engineer uses

Core tools

  • Informatica PowerCenter (Software): Enterprise-grade data integration for building robust ETL pipelines.
  • Talend Data Integration (Software): Open-source and commercial solutions for data integration, ETL, and data quality.
  • dbt (data build tool) (Framework): Transforms data in the warehouse using SQL, enabling analytics engineering best practices.
  • SQL (Language): Querying and manipulating data in relational databases and data warehouses.

Commonly used

  • Snowflake (Platform): Cloud-based data warehousing platform for scalable data storage and analytics.
  • Python (Language): Scripting and automation for custom ETL processes and data manipulation.
  • Apache Airflow (Platform): Programmatically authoring, scheduling, and monitoring data pipelines.

Software worth learning

Freelancers who bill clients in other countries receive payments in local currencies and convert them through Wise.

How to become an ETL Developer / Data Integration Engineer

Minimum education
Bachelor's Degree
Licensing
No professional license required
There are no formal licensing requirements; employers value platform certifications (e.g., cloud provider or ETL tool certs) and hands-on experience with data engineering stacks.
Years to mid-career
5-9
Years to senior
5-10
Career switching
Easy

Where an ETL Developer / Data Integration Engineer comes from

  • Data Analyst: Often, data analysts transition to ETL development to gain more control over data sources and pipeline creation.
  • Database Administrator: DBAs with strong SQL skills and an interest in data movement can pivot into ETL roles.
  • Software Engineer: Software engineers with a focus on backend systems and data processing can easily adapt to ETL development.

Where an ETL Developer / Data Integration Engineer goes next

  • Data Architect: ETL Developers often advance to Data Architects, designing the overall data strategy and infrastructure.
  • Data Engineer: A natural progression for ETL Developers, focusing on broader data infrastructure and advanced processing.
  • Cloud Data Engineer: Specializing in cloud-based data solutions, building and managing data pipelines in cloud environments.

Typical ETL Developer / Data Integration Engineer progression

  1. ETL Developer
  2. Senior ETL Dev
  3. Data Integration Architect
  4. Principal Data Engineer

ETL Developer / Data Integration Engineer job outlook and future demand

Automation probability
0.2618
AI disruption risk
Moderate
Demand trend
Growing

Job satisfaction as an ETL Developer / Data Integration Engineer

Overall satisfaction
6.5/10
Meaning
6/10
Work-life balance
6.5/10
Prestige
6/10
Social perception
Moderate

Where an ETL Developer / Data Integration Engineer finds community

Professional organisations

Conferences

Podcasts and media

Reddit communities

  • r/dataengineering: A community for data engineers to discuss tools, techniques, and challenges in the field.

Online communities

  • dbt Community Slack: An active Slack community for users and developers of the dbt data transformation tool.

Questions people ask about an ETL Developer / Data Integration Engineer

How much does an ETL Developer / Data Integration Engineer earn?

Pay for an ETL Developer / Data Integration Engineer starts around $86,240 at entry level, reaches $139,500 at the median and climbs to $204,000 for the most experienced.

What does it take to become an ETL Developer / Data Integration Engineer?

Most employers look for a Bachelor's Degree, no professional license required and reaching mid-career takes about 5-9 years.

Is remote work possible as an ETL Developer / Data Integration Engineer?

Most of the work happens remotely. Many ETL roles are remote-friendly since pipeline development and monitoring can be done remotely, although some teams prefer on-site collaboration for architecture and incident management.

What is the job outlook for ETL Developer / Data Integration Engineer?

Projections put employment growth at +10.0% through 2033, with demand rated Growing. Demand is growing faster than average as organizations centralize analytics, migrate to cloud data platforms, and need robust data integration for AI and BI initiatives.

How exposed is an ETL Developer / Data Integration Engineer to automation and AI?

This work carries a moderate risk of disruption from AI. Automation and managed ETL services handle routine extraction and transformation tasks, but designing robust, scalable pipelines and handling edge-case data quality issues continue to require engineers.

Is ETL Developer / Data Integration Engineer a stressful job?

Stress is rated moderate for this work. Moderate stress is driven by delivery deadlines, incident response for broken pipelines, and pressure to ensure data quality and uptime for analytics consumers.

What is the difference between an ETL Developer / Data Integration Engineer and a Data Engineer?

Data Engineer is the closest adjacent role and a common next step from an ETL Developer / Data Integration Engineer: A natural progression for ETL Developers, focusing on broader data infrastructure and advanced processing.

What does a typical day look like for an ETL Developer / Data Integration Engineer?

As an ETL Developer, I spend my days wrangling data, building robust pipelines, and ensuring data quality.

How hard is it to switch into ETL Developer / Data Integration Engineer from another career?

Switching into this work from another career is rated easy. The entry requirement of a Bachelor's Degree sets the floor for anyone coming from another field.

Does an ETL Developer / Data Integration Engineer need a professional license?

No professional license required. There are no formal licensing requirements; employers value platform certifications (e.g., cloud provider or ETL tool certs) and hands-on experience with data engineering stacks.

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