Meta Data Engineer Interview in San Francisco Bay Area (IC4)
Meta's Data Engineer loop ((IC4) short) emphasizes SQL-heavy with fast-paced coding expectations and a product-sense orientation. Candidates who clear it demonstrate shipped production pipelines end-to-end and can debug them when they break backed by roughly 2-5 years. The San Francisco / South Bay, CA office has its own hiring cadence; the page below adjusts comp bands accordingly.
Compensation
$175K–$215K base • $300K–$420K total (IC4)
Loop duration
3.8 hours onsite
Rounds
5 rounds
Location
San Francisco / South Bay, CA
Compensation
Meta Data Engineer in San Francisco Bay Area total comp
Offer-report aggregate, 2019-2026. Level mapped: L4. Typical experience: 4-9 years (median 6).
25th percentile
$234K
Median total comp
$268K
75th percentile
$356K
Median base salary
$176K
Median annual equity
$70K
Median total comp by year
Practice problems
Meta data engineer practice set
Meta data engineer practice set, mapped from predicted domain emphasis. Tap into any problem to work it in the live environment.
Event Ticketing System Data Model
We run an IT helpdesk platform. Users submit support tickets, which are assigned to agents. Tickets go through multiple status changes before being resolved. SLA compliance is critical: P1 tickets must be resolved within 4 hours, P2 within 24 hours. Design the schema, and describe how you would load data from a JSON API feed into it.
The Queue That Wouldn't Stop Growing
Your streaming video event pipeline shows consumer lag spiking from near-zero to over 500,000 messages within two hours. You need to diagnose whether the cause is a producer burst or a consumer slowdown, then design a monitoring and auto-remediation system that can detect, alert on, and automatically recover from future lag events.
Housing Marketplace Analytics
We run a housing marketplace. Sellers list properties, buyers view listings and submit leads. We need to measure conversion rate from view to lead by location and property type. Design the data model.
Employee Application Time Tracking
We need to track how much time employees spend in each application. HR wants daily summaries of time-per-employee-per-application, and wants to flag any employee spending more than 10 hours/day in a single application. Design the schema to capture this data.
Count distinct users active in the trailing 7 days for each date. Product analytics staple.
San Francisco / South Bay, CA
Meta in San Francisco Bay Area
The reference market for US tech comp. Highest base DE salaries in the US, highest cost of living, deepest senior-engineer hiring pool.
Offers in San Francisco Bay Area use the same reference compensation band; no local adjustment applies. San Francisco Bay Area candidates run the same loop as global peers; the differences show up in team assignment and local comp calibration.
The loop
How the interview actually runs
01Recruiter screen
30 minNon-technical. The recruiter confirms level, product area (Ads, Integrity, Instagram, Reality Labs), and motivations. How you describe past work signals IC3/IC4/IC5.
- →Quantify everything: row counts, daily event volumes, TB processed
- →Research the specific team. Meta has dozens of DE teams with different tech stacks
- →Ask whether the loop includes a Python round; some teams do, some don't
02Technical phone screen
45 minLive SQL coding, 1-2 problems, in a shared doc with no syntax highlighting. Problems emphasize window functions, multi-step logic, and event-stream schemas.
- →Think out loud from the start, silence worries the interviewer
- →Expect window functions: ROW_NUMBER, LAG, LEAD, running totals
- →Ask clarifying questions: NULL handling, duplicates, timezone of timestamps
03Onsite: SQL deep-dive
45 min2-3 SQL problems with increasing complexity. The last often adds an optimization discussion: 'Your solution works, now make it efficient on 500B rows.'
- →Practice writing SQL without autocomplete. Meta uses a shared doc
- →When discussing optimization, mention partition pruning, predicate pushdown
- →Use CTEs to break complex queries into readable steps
04Onsite: Python / data manipulation
45 minPractical data work, not LeetCode. Parse JSON logs, transform nested structures, write a data validation function, build a small ETL step.
- →Practice file I/O, dictionary manipulation, list comprehensions
- →Write helper functions instead of one monolithic block
- →Handle edge cases explicitly, empty inputs, missing keys, malformed data
Level bar
What Meta expects at Data Engineer
Pipeline ownership
Mid-level DEs own pipelines end-to-end. Interviewers expect stories about designing, deploying, and maintaining a data pipeline that has been in production for 6+ months.
SQL + Python or Spark fluency
SQL is the floor. Most teams also expect fluency in either Python for data manipulation (pandas, airflow DAGs) or Spark for larger-scale processing.
On-call debugging
You should have concrete stories about production incidents: what alert fired, how you diagnosed, what you fixed, and what post-mortem action you owned.
Meta-specific emphasis
Meta's loop is characterized by: SQL-heavy with fast-paced coding expectations and a product-sense orientation. Calibrate your preparation to that, generic FAANG prep will not close the gap on company-specific expectations.
Behavioral
How Meta frames behavioral rounds
Move Fast
Meta's culture rewards shipping and iterating. Stories about shipping a V1, measuring, and iterating land harder than stories about getting a design perfect before launch.
Focus on Long-Term Impact
Paired with Move Fast. Meta wants DEs who ship fast without creating 3-year tech debt. Balance matters.
Build Awesome Things
Meta wants people who care deeply about craft. Your ETL pipeline is not just a job, it is a thing you built.
Live in the Future
Senior and above: betting on the technology curve. Candidates who talk about where data infrastructure is going in 3 years land strongly.
Prep timeline
Week-by-week preparation plan
Foundations and gap analysis
- ·Do 10 medium SQL problems. Note which patterns feel slow
- ·Write out 2-3 behavioral stories per value, Meta weights this round heavily
- ·Read Meta's public engineering blog for recent architecture patterns
- ·Review your prior production work, pick 3-5 projects you can discuss in depth
SQL and coding fluency
- ·Practice window functions until DENSE_RANK, ROW_NUMBER, LAG, LEAD are reflex
- ·Do 20+ Meta-style problems in their domain
- ·Time yourself: 25 min per medium, 35 min per hard
- ·Record yourself narrating approach aloud, communication is graded
Pipeline awareness and behavioral depth
- ·Review pipeline architecture basics: idempotency, partitioning, backfill
- ·Practice explaining a pipeline you've worked on end-to-end in 5 minutes
- ·Refine behavioral stories based on mock feedback
- ·Do 10 more SQL problems at medium difficulty
Behavioral polish and mock loops
- ·Rehearse every story out loud. Cut to 2-3 minutes each
- ·Run 2 full mock loops with a mid-level DE or coach
- ·Identify your 3 weakest behavioral areas and draft additional stories
- ·Review recent Meta news or earnings call for fresh talking points
Taper and logistics
- ·No new content. Review your notes only
- ·Sleep. Mental energy matters more than one more practice problem
- ·Confirm logistics: laptop charged, shared-doc tool tested, snack and water nearby
- ·Remember: interviewers want to find reasons to hire you, not to reject you
See also
Related interview guides
FAQ
Common questions
- What level is Data Engineer at Meta?
- Data Engineer maps to IC4 on Meta's engineering ladder. This is an individual contributor level; expectations focus on shipped production pipelines end-to-end and can debug them when they break.
- How much does a Meta Data Engineer in San Francisco Bay Area make?
- Based on 95 offer samples covering 2019-2026, Meta Data Engineer in San Francisco Bay Area sees $234K at the 25th percentile, $268K at the median, and $356K at the 75th percentile, median base $176K and median annual equity $70K. Typical experience range: 4-9 years..
- Does Meta actually hire data engineers in San Francisco Bay Area?
- Yes, Meta maintains a San Francisco Bay Area office and hires Data Engineer data engineers there. Team assignment may be office-locked or global; confirm with the recruiter before the loop.
- How is the Data Engineer loop different from other levels at Meta?
- The rounds look similar, but the bar calibrates to seniority. Data Engineer is evaluated on shipped production pipelines end-to-end and can debug them when they break. Questions at this level probe production pipeline ownership and on-call debugging.
- How long should I prepare for the Meta Data Engineer interview?
- Plan for 6-8 weeks of prep if you're already a working DE. Under 4 weeks rushes the behavioral prep, which takes the most time.
- Does Meta interview data engineers differently than software engineers?
- They differ meaningfully. Meta's DE loop has heavier SQL, replaces the general system-design with a data-specific one (pipelines, warehouse design), and expects production data ops experience.
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