Is this actually your fit?
Three short trait quizzes scored against this exact role. No card. ~10 minutes — less if you've already done some.
Every career on ClarUP carries a 6-trait blueprint scored from real practitioners. Take the trait quizzes to see your fit.
High Conscientiousness87/100
The strongest signal for this role. People who score 70+ on this dimension report higher day-to-day satisfaction.
Three short trait quizzes scored against this exact role — your fit %, no card. ~10 minutes, less if you've already done some.
India-first salary signal — fresh-grad to leadership, the cities where it pays best, and what each level is worth on the open market.
Junior (0-2 yrs): TCS/Infosys/Wipro ₹3.5-5.5L; mid-tier services ₹4-7L; GCC support roles ₹5-9L. Mid (3-5 yrs): services ₹7-15L, GCCs ₹12-22L, senior-track at top GCCs ₹18-28L. Senior ETL developer/lead: services firm architect ₹20-40L, GCC lead ₹30-60L, FAANG-India / fintech ₹55-90L. Principal/Architect 12+ yrs: large services ₹45-80L; top GCCs and fintech product cos ₹80L-1.5Cr.
Not the brochure version. The actual block-by-block reality of the role on a typical Tuesday.
Log in and check the overnight batch dashboard in Informatica Workflow Monitor — scan for failed sessions across the Customer, Sales, and Finance domain pipelines. One session for the Sales Fact load shows a timeout; pull the session log to identify the root cause.
Diagnose the failed session — the source Oracle ERP server had a maintenance window at 2:30 AM that caused a connection timeout mid-run. Restart the workflow, monitor the first 10 minutes of the reload, and confirm it completes cleanly before the 10 AM reporting window.
Team standup — 20 minutes covering overnight batch health, sprint task status, and one blocker: the source-system team changed a column data type in the CRM without raising a change-management ticket. Assign a mapping fix to yourself for the afternoon.
Development work: implement SCD Type 2 logic for the Product Dimension table — write the Informatica mapping using a sequence generator, a lookup transformation to detect changed rows, and a router to split inserts and updates. Unit-test against a 500-row sample extracted from the staging database.
Review a junior developer's mapping document for the Region Hierarchy dimension — identify two issues: missing NULL handling for optional parent-region column, and no error logging configured on the target load. Add review comments and schedule a 20-minute walkthrough.
Fix the CRM column change: update the output column definition in the mapping from VARCHAR2(100) to VARCHAR2(500), redeploy the session to the development repository, run an integration test against the full delta load from yesterday, and confirm row counts and reconciliation totals match.
Update the source-to-target mapping document in Confluence with the CRM column change, add a note in the change log, and raise a process violation ticket against the source-system team for the undocumented schema change. Send daily batch summary email to the project lead.
Brief call with the business analyst to clarify a new requirement: Finance wants the Loan Fact table to capture both the sanctioned and disbursed amounts as separate measures. Sketch the mapping design in the STM document and schedule the development task for tomorrow's sprint.
The real entry pathway for this role — eligibility, the qualifying exam, training, and licensing — in the order most people follow it.
Bachelor's degree in Computer Science, IT, or a related engineering field (B.Tech, B.E., BCA) — the standard entry bar at TCS, Infosys, Cognizant, and most enterprise ETL teams.
B.Sc Computer Science, BCA, or MCA for non-tier-1 services firms and GCC support roles; a strong SQL + Informatica/SSIS hands-on portfolio compensates for non-CS branches.
degree from IIT, NIT, IIIT, or BITS — useful mainly for senior or architect-track roles at top GCCs (Walmart Global Tech, Fidelity, Goldman Sachs) and product-company data engineering transitions.
Certifications that matter in India: Informatica Certified Developer (ICDL), Microsoft Certified: Azure Data Engineer Associate (DP-203), IBM DataStage certification, Oracle Data Integrator (ODI) Certified Implementation Specialist, AWS Certified Data Engineer Associate — most useful at 2-4 years for differentiating within services-firm ETL pools.
a portfolio project (source MySQL/Postgres → Informatica or SSIS transformation → Snowflake/SQL Server DW target, documented end-to-end with mapping docs) plus SQL fluency at the level of passing Infosys/Wipro written tests is an accepted route at mid-tier services firms.
Core skills you must own, the support skills you'll grow into, and the tools you'll have open all day.
People already doing this work — and the rooms (subreddits, Discords, Slacks) where they hang out.
Ralph Kimball
Data Warehouse Architect and Author
Joe Caserta
Data Architect and Co-author
Informatica India (Pune Office)
Enterprise ETL Platform Vendor
William Inmon
Data Warehouse Pioneer
Prashanth Southekal
Data Analytics Author, Consultant and Educator
r/dataengineering
RedditThe largest English-language data engineering community on Reddit with 200K+ members. Covers ETL, ELT, Informatica, dbt, Airflow, Spark, and cloud data platforms. Useful for ETL developers researching tool migration patterns, salary benchmarks, and job-switch advice — active participation from Indian GCC and services-firm professionals.
Informatica Community
Informatica (vendor forum)Official Informatica developer community with forums for PowerCenter, IICS, and IDQ. Contains thousands of solved issues for common ETL problems — session failures, pushdown optimisation, SCD Type 2 patterns, and CDC setup. Indispensable for ETL developers working on Informatica estates at Indian banks and services firms.
Data Engineering Weekly Newsletter
Substack / EmailCurated weekly newsletter covering data engineering tools, architecture patterns, and industry trends — including ETL/ELT migration case studies, dbt and Airflow updates, and cloud warehouse comparisons. Widely read by Indian data professionals upskilling from traditional ETL toward modern data engineering.
dbt Community Slack
SlackActive 50K+ member Slack community for dbt (data build tool) users — particularly useful for ETL developers making the transition to ELT / modern data engineering. Channels for SQL modeling, Snowflake/BigQuery, and career advice from ETL-to-DE switchers.
The traps real practitioners wish someone had named for them in year one. Read these before you commit, not after.
Implementing SCD Type 1 when the requirement says 'maintain full history'
Using full-table truncate-and-reload instead of incremental/CDC loads for large tables
Skipping error logging and bad-record handling in ETL mappings
Not documenting source-to-target mapping changes after production fixes
The upside that makes this work worth it, set honestly against the parts people quietly resent. Both sides, before you commit.
Straight answers to what people genuinely wonder before stepping into this work — no brochure spin.
Books, longreads, and references practitioners come back to.
The Data Warehouse Toolkit: The Definitive Guide to Dimensional Modeling
by Ralph Kimball and Margy Ross
The Data Warehouse ETL Toolkit
by Ralph Kimball and Joe Caserta
Fundamentals of Data Engineering
by Joe Reis and Matt Housley
Microsoft SQL Server Integration Services (SSIS) Step by Step
by Tim Stinson and Wee-Hyong Tok
Two short artifacts go beyond the general DNA test — a per-career simulation tests how you make real workplace decisions, and a per-career aptitude test checks your capability with the actual work. Sign in with Pro to start.
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