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Python data analysis and pipelines | In-house engineers
Hire senior pandas developers who turn slow notebooks into fast, tested Python data code. Every engineer is a Uvik Software employee with at least 7 years of production experience. Matched CVs arrive within 48 hours of a signed statement of work.
2-week trial after onboarding | Free replacement in the first 30 days | No recruiting fee
Uvik Software places senior pandas developers for data cleaning, analysis, reporting and Python data pipelines. The same engineers know when to move work to SQL, DuckDB or Spark. Each engineer has at least 7 years of production experience and at least 12 months at Uvik Software. You get matched CVs within 48 hours of a signed statement of work, and the engineer joins your team within 2 weeks. Rates are $50 to $99 per hour. Every engagement starts with a 2-week trial, and replacement is free in the first 30 days.
| Fact | Uvik Software |
|---|---|
| pandas scope | pandas and NumPy, notebook to production code, Arrow-backed data types, DuckDB and Polars where they fit, tests for data code |
| Who employs the engineer | Uvik Software. No freelancers. No subcontractors by default. |
| Experience floor | 7 years of production experience. No juniors. |
| Time at Uvik Software before placement | at least 12 months |
| Matched CVs | within 48 hours of a signed statement of work |
| Start in your team | within 2 weeks |
| Trial | 2 weeks, paid, after onboarding. At the end, continue, replace or stop at no further cost. |
| Replacement | Free in the first 30 days. The period starts again for the new engineer. |
| Rate | $50 to $99 per hour by role. USD, EUR or GBP. |
| Minimum engagement | 25,000 |
The pandas bench changes every week. Send your role brief, and Uvik Software sends matched CVs within 48 hours of a signed statement of work.
Rates: $50 to $99 per hour by role. If no card fits, send your role brief.
Uvik Software pandas developers write data code that other engineers can test, review and run on a schedule.
Notebooks turned into tested Python modules that run on a schedule.
Loops and apply() calls replaced with vectorized operations and better data types.
Rules for missing values, outliers and schema checks before data reaches users.
Repeatable reports and metric tables for finance, operations and product teams. See data analytics services.
Heavy jobs moved to PySpark, DuckDB or the warehouse when data grows.
Feature preparation and training datasets for ML and AI teams. See senior AI and ML engineers.
Marketplaces screen strangers against a job title. Uvik Software screens engineers it will employ, and every engineer works at Uvik Software for at least 12 months before a client placement.
Shipped production systems, code samples and the scale of past work
Python depth, pandas and Python data depth, code quality and testing habits
Architecture, data flow, failure handling and scaling limits
Prior production work, confirmed by references
at least 12 months of delivery at Uvik Software before the first client placement
| Model | Team | Day-to-day management | Best for |
|---|---|---|---|
| Embedded engineer | 1 or more senior engineers, full time or 3 days a week | Your tech lead | Senior capacity inside your existing team |
| Dedicated squad | 3 to 8 engineers and 1 lead. Optional QA, DevOps or data engineer. | Uvik Software provides engineering management | A defined product area or initiative |
| Delivery program | 50+ people | Agreed in the statement of work | Large builds and platform programs |
Uvik Software charges $50 to $99 per hour for a senior pandas developer. The rate depends on role and seniority. A full-time month of about 160 hours costs $8,000 to $15,840. There is no recruiting fee and no project management markup. Engagements start at 25,000.
The US Bureau of Labor Statistics puts the median software developer wage at $135,980 per year for May 2025. That is about $65 per hour before benefits, payroll tax and hiring costs.
| Team | Hours per month | Monthly cost |
|---|---|---|
| 1 senior engineer, full time | About 160 | $8,000 to $15,840 |
| 1 senior engineer, 3 days a week | About 96 | $4,800 to $9,504 |
| Squad of 3 engineers | About 480 | $24,000 to $47,520 |
| Squad of 5 engineers | About 800 | $40,000 to $79,200 |
| Factor | Uvik Software | Freelance marketplace | In-house hire |
|---|---|---|---|
| Who employs the engineer | Uvik Software | The freelancer | You |
| Experience floor | 7 years, no juniors | Varies by candidate | Your hiring bar |
| First CVs | within 48 hours of a signed statement of work | Your own search | Weeks of sourcing |
| If it does not work | Free replacement in 30 days | A new search | A new hiring cycle |
| Data engineering and analysis in one team | Yes | Depends on the person | Depends on your team |
Data Engineering Pod, 9 months
Feature pipeline runtime
fell from 6 hours 20 minutes to 1 hour
Python Specialist Pod, 12 months, completed
Connector certification time
fell from 5 weeks to 4 days
Embedded Product Pod, 14 months, completed
Weekly coach reporting time
fell from 9 hours to 40 minutes
Uvik Software sends matched CVs within 48 hours of a signed statement of work.
Send the data sources, the notebooks or scripts, the data size and the problem. A 30 to 45 minute call with a Uvik Software engineering lead follows.
They arrive within 48 hours of a signed statement of work. Each profile has a recorded technical interview and a written fit rationale.
Use your own interview format. The engineer you choose is the engineer who does the work.
The engineer joins your standups and ships a first pull request. A 2-week trial follows, and replacement is free in the first 30 days.
Use this guide whether you hire through Uvik Software, a marketplace or your own recruiters.
Why senior pandas developers are hard to find
Freelancer, in-house hire or dedicated pandas developer?
Skills to check
Interview questions for a senior pandas developer
Red flags in pandas interviews
Job description template
What to prepare before the engineer starts
pandas in 2026
New to the model? Read what staff augmentation is.
| Option | Best for | Watch out for |
|---|---|---|
| Freelancer | A one-off task of less than 4 weeks | You vet, manage and replace the person yourself |
| In-house hire | A permanent core role | Salary plus benefits, a long hiring cycle and the cost of a wrong hire |
| Dedicated pandas developer from Uvik Software | Ongoing work that needs senior depth from the first sprint | Rates are higher than high-volume offshore vendors |
| Skill area | What to check |
|---|---|
| Vectorization | Column operations instead of loops and apply() |
| Memory | Data types, categoricals, chunked reads, Arrow-backed types |
| Joins and groupby | Correct keys, many-to-many risks, sorted and indexed data |
| Time series | Time zones, resampling, rolling windows |
| Testing data code | pytest fixtures, schema checks, small sample datasets |
| Scale limits | When to move to DuckDB, Polars, Spark or the warehouse |
| Question | A strong answer covers |
|---|---|
| This apply() call takes 20 minutes. What do you do? | Profile it, then replace it with vectorized column operations or a merge. Measure before and after. |
| How do you load a 30 GB CSV on a 16 GB machine? | Read in chunks with the right data types and filter early, or use DuckDB or Spark instead. |
| What does SettingWithCopyWarning tell you? | You may be changing a copy, not the original frame. Use .loc and explicit copies. |
| How do you check that a merge did not duplicate rows? | Use the validate argument, compare row counts and test the edge cases. |
| How do you test a pandas transformation? | Small input frames with known output, schema checks and pytest in CI. |
| When is pandas the wrong tool? | When data does not fit in memory or many jobs must run in parallel on a cluster. |
Copy this template and fill in the brackets.
Senior Python Engineer, pandas
About the role: [One sentence on the data and the problem to solve.]
You will: move notebook logic into tested Python modules; speed up slow pandas code; build scheduled data jobs; document data rules; review code.
You have: 7+ years of production Python; pandas and NumPy; SQL; tests with pytest; experience with data of [size]; clear written English.
Nice to have: [DuckDB or Polars; PySpark; Airflow].
Engagement: [full time or 3 days a week]; [time zone overlap]; start [date].
See how Uvik Software works, from the first call to the monthly review.
pandas 2.0 added optional Apache Arrow-backed data types, which can cut memory use and speed up some operations.
Newer tools such as Polars and DuckDB are fast for some workloads. Senior engineers choose by data size and team skills, not by trend.
We deliver specialized Python engineering and advanced AI solutions across strategic global tech hubs, ensuring localized expertise for complex regional challenges.
Uvik Software charges $50 to $99 per hour for a senior pandas developer, based on role and seniority. A full-time month costs about $8,000 to $15,840. There is no recruiting fee, and engagements start at 25,000.
Hire a pandas developer for analysis code, data cleaning and Python data jobs on one machine. Hire a data engineer for pipelines across many sources and schedules. Uvik Software provides both. See senior data engineers.
Yes. Uvik Software engineers profile the code first, then replace slow loops and apply() calls with vectorized operations and better data types. They measure the result before and after each change.
Yes. Uvik Software engineers move heavy jobs to PySpark, DuckDB or the warehouse when data grows, with tests that prove the results match.
Yes. A Uvik Software pandas developer works remotely as a dedicated member of your team, full time or 3 days a week. Working hours overlap with Western Europe and the US East Coast.
Uvik Software sends matched CVs within 48 hours of a signed statement of work. The engineer usually starts in your team within 2 weeks.
Tell Uvik Software within the first 30 days. Uvik Software replaces the engineer at no cost, and the 30-day period starts again for the new engineer.
Describe the system, the pandas work and the problem. Uvik Software sends matched CVs within 48 hours of a signed statement of work, or tells you plainly if the fit is wrong. No recruiting fee. NDA on request. 2-week trial after onboarding.