Data Analyst resume example

A complete example below. The person is invented; the writing is not. The notes on the right point at what's worth copying — swap in your own names, companies and numbers.

Lan Su

Data Analyst

(555) 010-0000lan.su@example.comChicago, IL

Summary

Four years of business analysis across growth and retention. The work isn't reporting — it's breaking a question down until it can be tested, then answering it with an experiment or a quasi-experimental method. Every conclusion ends in a recommended action, and I track what happened after.

Education

2017 - 2021State UniversityB.S. Statistics

Coursework in regression, experimental design and causal inference. GPA 3.7/4.0.

Experience

Feb 2023 - PresentOnline Education CompanyData Analyst

Owned renewal attribution; used propensity score matching to remove selection bias and identified first-month lesson completion as the strongest leading signal, driving a scheduling change worth +6.2pp renewal

Rebuilt core metric definitions into one wide table — three teams had been computing 'active user' differently, and the disputes stopped

Designed and reviewed 34 A/B tests, 11 rolled out; also stopped 5 that looked like wins but weren't significant

Jul 2021 - Jan 2023E-commerce CompanyData Analyst

Built a new-user segmentation into 5 groups with differentiated outreach; 30-day repurchase rose 4.1pp

Traced a promotion-period conversion drop to a broken delivery-estimate display in one region; conversion recovered above baseline after the fix

Projects

Feb 2024 - Sep 2024Churn Early WarningSole owner

Flags high-churn-risk users 14 days ahead for targeted outreach.

Model AUC 0.79 — more importantly, ran it with a holdout so the 3.4pp retention lift is attributable to the intervention rather than to users who would have stayed anyway

Skills

Strong SQL: window functions, complex joins, query optimisation

Causal inference: A/B design, propensity score matching, difference-in-differences

Python for analysis and modelling (pandas, scikit-learn)

Metric system design and definition governance

Translating findings into actions, then measuring whether the action worked

Three mistakes this example avoids

'Built dashboards and produced daily reports' with no outcome
Listing SQL and Excel as the entire skill set
No business context — the reader can't tell if the number was big

Other resume examples

AI Product Manager

(555) 010-0000alex.chen@example.comSan Francisco, CA

Product manager with 5 years of experience, 2 of them building LLM applications. Shipped and iterated two enterprise lines — document QA and contract extraction. I scope problems down to what a model is actually good at before proposing a solution, ship nothing without an evaluation set, and watch cost and retention after launch.

2018 - 2021State University

M.S. Computer Science

Focus on natural language processing; ran requirements and acceptance for two industry projects.

May 2023 - PresentEnterprise SaaS Company

AI Product Manager

Own a B2B document QA product; narrowed scope to questions with a citable source, raising answer accuracy from 61% to 84%

Built a 320-item human-labelled evaluation set and ran it as a regression on every model and prompt change

Moved long documents to retrieve-then-answer, cutting cost per request 62% and P95 latency from 8.4s to 2.9s

Launched three reference customers; 1,400 monthly active seats and 100% six-month renewal

Jul 2021 - Apr 2023Consumer Internet Company

Product Manager

Owned the content moderation console; designed the automated/human routing rules, cutting manual review volume 43%

Led a workspace redesign that took handling time from 22s to 13s per item and dropped appeals by a third

Mar 2024 - PresentContract Clause Extraction

Extracts key contract terms into structured fields for legal review.

Defined the extractable boundary — 14 field types with stable phrasing, everything else stays manual, so coverage never came at the cost of trust

Added per-field confidence and source highlighting; legal review time per contract fell from 25 to 9 minutes

Problem scoping and capability-boundary judgement for model-backed features

Evaluation: labelled set construction, regression testing, pre/post-launch metric alignment

Working knowledge of RAG and function calling — the product shapes and the common failure modes

Cost and latency modelling; can hold a concrete token-budget and caching discussion with engineers

AI Product Manager

Prompt Engineer

(555) 010-0000jordan.lin@example.comSeattle, WA

Three years in NLP and LLM applications, focused on turning unstable model output into something shippable. Worked across support, moderation and structured extraction. I build the evaluation set before touching the prompt, so every improvement comes with a baseline and a cost.

2018 - 2022State University

B.S. Software Engineering

Coursework in machine learning and NLP; capstone on short-text intent classification.

Mar 2023 - PresentAI Startup

Prompt Engineer

Own answer quality for an AI support agent; built a 480-item evaluation set covering long-tail cases and raised human pass rate from 68% to 91%

Moved from free text to enforced structured output with a validation fallback, dropping downstream parse failures from 7.2% to 0.4%

Designed tiered routing — small model for simple intents, escalation only when needed — cutting average cost per call 55% and P95 latency by 1.8s

Set up a model-upgrade regression process so effectiveness drops surface before release, not after

Jul 2022 - Feb 2023Consumer Internet Company

Iterated a review sentiment classifier from 0.81 to 0.88 F1

Owned training-data cleaning and the labelling guidelines; inter-annotator agreement rose from 0.72 to 0.89

Jan 2024 - Aug 2024Content Safety Guardrail

A guardrail layer that blocks non-compliant generations and returns an explainable reason.

Combined few-shot classification with rule pre-filters: miss rate from 4.1% to 0.9% while holding false blocks under 1.2%

Shipped as an independently rollable and revertible layer, decoupled from the main path

Evaluation set construction and regression testing; every change quantified against a baseline

Structured output, few-shot and chain-of-thought techniques — and where each stops working

Token cost and latency modelling; caching and tiered routing

Python; comfortable building batch evaluation harnesses against major model APIs

Prompt Engineer

Frontend Engineer

(555) 010-0000sam.zhou@example.comNew York, NY

Five years in frontend on React and TypeScript, across two internal-tools platforms at 100+ person companies. Alongside feature work I've owned build tooling, the component library and frontend standards. I measure before I optimise, so every improvement here has a named metric.

2016 - 2020State University

B.S. Computer Science

Coursework in data structures, operating systems, networks and web development. GPA 3.6/4.0.

Apr 2022 - PresentConsumer Internet Company

Senior Frontend Engineer

Own the frontend architecture for trading back-office tools; split 12 modules into independent build units, taking local startup from 96s to 21s

Led the component library — 46 components with docs and visual specs — cutting average new-page build time about 35%

Drove first-paint work against LCP specifically: route-level code splitting and image lazy loading took LCP from 3.4s to 1.5s

Introduced frontend error monitoring; blank-screen incidents went from 4-6 per week to effectively zero

Jul 2020 - Mar 2022Enterprise Software Company

Frontend Engineer

Built modules of a B2B admin platform in Vue.js, owning permissions and workflow end to end

Ran code review and helped set standards; module defect rate fell about 20%

Delivered mobile web support across 10+ common device profiles

Jun 2023 - PresentLow-code Page Builder

Lets the marketing team assemble campaign pages by drag and drop instead of filing frontend tickets.

Designed the schema-driven rendering core and material protocol; time to publish a campaign page dropped from 3 days to 2 hours

Held 55fps+ in edit mode on 800-node canvases using virtual scrolling and incremental rendering

Deep React and TypeScript; practical understanding of Fiber scheduling and concurrent rendering

Build tooling: Webpack and Vite configuration, bundle analysis, dependency hygiene

Performance work driven by LCP and INP rather than guesswork

Component libraries end to end — docs, tests and release process

Node.js for BFF layers and API integration

Frontend Engineer

Product Manager

(555) 010-0000fang.xu@example.comAustin, TX

Six years in consumer product, mostly checkout and growth. I define the problem before discussing solutions, and I'll cut a feature that looks good this quarter if it doesn't move the long-term number. Led a three-person product pod; alignment with engineering and design starts from shared reasoning, not escalation.

2015 - 2019State UniversityB.B.A., minor in Statistics

Ran product and operations for a campus marketplace while studying.

Aug 2021 - PresentE-commerce MarketplaceProduct Manager

Own the order-to-payment path; restructured the checkout information hierarchy, taking payment success from 91.2% to 96.5%

Defined and shipped buy-now-pay-later for low-value baskets — 18% of orders, default rate held under 0.6%

Cut an already-scheduled membership revamp: data showed it touched 2% of users and no core metric, so the capacity went to checkout instead

Set up a monthly alignment between product, risk, support and settlement; cross-team delivery went from 5 weeks to 3

Jul 2019 - Jul 2021Local Services CompanyProduct Manager

Owned first-order conversion; simplified sign-up paired with a first-order incentive took conversion from 8.4% to 13.1%

Built the A/B testing process and metric definitions; 27 experiments in a quarter, 9 rolled out

Mar 2022 - Nov 2022Self-service RefundsProduct owner

Moved refund cases that needed an agent into a self-service flow where it was safe to do so.

Tiered by amount and risk, opening self-service only to the low-risk band: agent tickets down 47% with no increase in losses

Tracked for three months post-launch and only closed the project once complaints had also fallen 21%

Problem definition and prioritisation — able to explain why this and not that

Analysis: SQL, A/B test design, metric definition alignment

Cross-functional mechanisms with engineering, design and risk

Payments domain knowledge: checkout, refunds, reconciliation and their usual traps

Product Manager

Product Operations

Phone：(555) 010-0000

Email：wei.he@example.com

Location：Denver, CO

Four years in product operations, owning DAU and retention. I care more about mechanisms than campaigns — whether something can run every week beats whether one launch trended. Budgets and ROI are stated, including the bets that didn't work.

2017 - 2021State University

Ran the campus social account from zero to 12,000 followers.

Jun 2022 - PresentConsumer Utility App

Product Operations

Own day-1 retention; took it from 31% to 42% on a base of ~80k monthly new users, mainly by resequencing onboarding to deliver value on day one

Built a weekly plan-ship-review cadence, turning campaigns from ad hoc into a fixed rhythm — 11 launches last quarter, all with a written review

Managed a $85k quarterly acquisition budget, moving ROI from 1.4 to 2.3 and cutting two channels that missed target three months running

Tried referral loops for three rounds; CAC stayed above organic, so I stopped it and turned the findings into a channel evaluation checklist

Jul 2021 - May 2022E-commerce Marketplace

Operations Associate

Ran member-day campaigns end to end; per-event GMV rose from $250k to $430k

Documented the campaign SOP, cutting ramp time for a new hire to run one solo from 4 weeks to 2

Apr 2023 - Sep 2023Onboarding Rebuild

Operations lead

Reframed onboarding from a feature tour into getting the user one real result.

Cut 7 steps to 3 with product; day-one completion went from 38% to 64% and day-1 retention rose 5.8pp

Metric ownership: decomposing and attributing DAU, retention and conversion

Operating mechanisms — planning, scheduling and review as a repeatable process

Budget and ROI management, channel evaluation and knowing when to stop

SQL and dashboards; I pull my own numbers rather than waiting on a report

Product Operations

Phone：(555) 010-0000

Email：sicheng.li@example.com

Location：Boston, MA

Class of 2026 computer science graduate working in Java. One five-month backend internship and two course projects, each with shipped or load-tested numbers behind it. Solid fundamentals, happy to start on debugging, and I write down what I break.

Backend Engineer (New Grad)

2022 - 2026State UniversityB.S. Computer Science

Data structures, operating systems, networks, database systems. GPA 3.6/4.0, top 15% of the major, merit scholarship twice.

Jun 2025 - Nov 2025Enterprise Software CompanyBackend Engineering Intern

Built and integrated 6 endpoints in the order service covering creation, lookup and state transitions

Found and fixed an oversell bug under concurrency using optimistic locking with a unique-index fallback; zero oversells under the repro script

Added 38 unit tests to core endpoints, taking module coverage from 41% to 76%

Joined two production investigations and learned to use tracing on slow queries — one took an endpoint's P95 from 1.2s to 340ms

Feb 2025 - May 2025Campus MarketplaceBackend lead, team of 4

A second-hand marketplace for students; coursework project, piloted on campus.

Owned schema and endpoints for listings, orders and messaging on Spring Boot, MySQL and Redis

Cached hot listing pages in Redis, taking load-tested throughput from 240 to 1,100 QPS

320 students registered during the pilot with 87 completed transactions

Oct 2024 - Dec 2024Distributed URL ShortenerSolo project

A practice project focused on ID generation and cache breakdown.

Segment-based ID generator benchmarked at 8,000 QPS on one node; Bloom filter for lookups of codes that don't exist

Solid Java: collections, concurrency, JVM memory model

Spring Boot and MyBatis, including transaction propagation and its usual traps

MySQL indexing and execution plans; able to track down slow queries

Redis data structures and handling of cache penetration, breakdown and avalanche

Data Analyst (career changer)

(555) 010-0000hao.zheng@example.comPortland, OR

Moving into data analysis from retail store operations. I've spent four years making decisions from data — it was just called inventory planning rather than analysis. Over the past year I've filled the gaps with SQL, statistics and Python, and completed two independent analyses on public datasets. My edge is knowing what's happening in the store behind the number.

2017 - 2021State University

B.B.A. Business Administration

Coursework in statistics and operations management; completed an econometrics project.

Jul 2021 - PresentRetail Chain

Regional Operations Supervisor

Own assortment for 12 stores; re-tiered products by sell-through and sales per square foot, cutting regional inventory days from 68 to 44

Defined weekly store reporting metrics and rolled them out region-wide — stores had been counting differently, and transfer decisions kept contradicting each other

Built simple seasonal forecasts from sales history, narrowing holiday stocking error from ±35% to ±14%

Coached three store managers through weekly data reviews, replacing intuition-based ordering with a sell-through ranking

Mar 2025 - Jul 2025Convenience Store Siting Analysis

Analysed convenience store placement across a metro area using public population, POI and transit data.

Cleaned 42,000 POI records in Python, built 8 candidate features, and found 'within 300m of transit + office density' the strongest combination by regression

Delivered a 12-page report and an interactive dashboard; conclusions matched actual high-revenue store locations 76% of the time

Sep 2024 - Feb 2025Analytics Coursework

Completed structured courses in SQL, statistics and A/B testing, reproducing 6 case analyses on public datasets

SQL: joins, window functions, aggregation and cleaning

Python for analysis (pandas) and visualisation (matplotlib)

Statistics: descriptive analysis, hypothesis testing, regression

Retail domain knowledge — sell-through, turnover and stocking, and what each means on the floor

Dashboards and reporting; able to explain findings to people who don't read numbers

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