Data Engineer @ Volvo Cars · Bengaluru

Kumar Aditya

Data Engineer

I build the plumbing that lets 6,000+ engineers at Volvo Cars ship data without filing a ticket with me first. Before that, I kept 500M+ rows of trading data flowing for S&P Global. Mostly, I make data boring. The good kind of boring.

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impact

A few numbers I'm proud of.

The ones I'm allowed to share, anyway. All from systems running in production today. yes, I double-checked them

0+
engineers on a self-serve platform I architected
dbt · airflow · ci/cd
0+
dbt models governed with policy-as-code
snowflake · github workflows
0M+
trading records processed per pipeline
pyspark · kinesis · aws emr
0%
availability on critical capital-markets data
slas · monitoring · on-call
0%
compute cost cut with a metadata-driven framework
aws emr · databricks
0+
teams writing data contracts with my builder
odcs · llm-assisted
about

Hi, I'm Aditya.

I'm a Data Engineer at Volvo Cars. My job is to make sure product teams can build, test and govern their own pipelines on dbt, Airflow and Snowflake, so nobody has to wait on a central data team (including me).

Before that I spent 3+ years at Cognizant on the S&P Global account, looking after batch and streaming pipelines for U.S. capital-markets data on AWS. Somewhere in there I became the only engineer on the account promoted in 2024.

I care a lot about the unglamorous stuff that makes data trustworthy: tests, contracts, SLAs, and alerts that wake up the right person at 2am. Ideally not me.

my favourite way to write a bio
~/kumar_aditya — zsh
selected work

Stuff I've built (and still answer for).

No to-do apps here. These are real systems with real users, who would message me pretty quickly if any of them broke.

Volvo Cars
2026

Self-serve dbt + Airflow platform

CI/CD that deploys dbt models with default tests and generates Airflow DAGs automatically, so any team can ship a production pipeline without a data-platform ticket.

2–3 days → <4 hrspipeline onboarding · 6,000+ engineers
dbtAirflowSnowflakeGitHub ActionsKubernetes
Volvo Cars
2026

Data contract builder

An Open Data Contract Standard (ODCS) builder with schema validation, Snowflake DDL import, data-quality rules and LLM-assisted drafting.

~2 hrs → ~1 minper contract · 30+ teams
ODCSPythonSnowflakeLLM
Volvo Cars

Data product platform

FastAPI + React app that publishes data products to OpenMetadata, with Azure OpenAI auto-tagging of tables and columns.

100+products in 2 months
FastAPIReactOpenMetadataAzure OpenAI
Volvo Cars

Policy-as-code governance

Teams declare data classification and country-of-origin in dbt config; a GitHub workflow applies Snowflake tags through per-team roles.

24,000+models governed
dbtSnowflakeGitHub Actions
S&P Global
via Cognizant

Capital-markets pipelines

Multi-step PySpark batch and Kinesis streaming pipelines on an AWS EMR + S3 lake, tuned with caching, multithreading and broadcast joins.

500M+records · −15% latency
PySparkKinesisEMRAirflow
S&P Global
via Cognizant

Metadata-driven execution framework

One framework across AWS EMR and Azure Databricks that reads each workload's profile and allocates compute to match, instead of one-size-fits-all clusters.

−25%runtime cost
AWS EMRDatabricksPySpark
Open source

data-contract-x contributor

Co-authored a merged feature pull request to data-contract-x, an open-source CLI for working with data contracts.

View merged PR ↗
PythonCLIData contracts
experience

Where I've been.

Four years, two companies, one recurring theme: making pipelines someone else can rely on.

Data Engineer · Volvo Cars

Jan 2026 — present · Bengaluru
  • Architected a self-serve dbt + Airflow platform for 6,000+ engineers, cutting pipeline onboarding from 2–3 days to under 4 hours.
  • Built a data contract builder adopted by 30+ teams, cutting each contract from ~2 hours to ~1 minute.
  • Shipped Snowflake models for 1,000+ users, cutting time-to-data from 3–4 days to ~2 hours.

Associate · Cognizant

Oct 2024 — Nov 2025 · Pune
client: S&P Global · U.S. capital markets
  • Owned critical trading-data pipelines end to end, sustaining 99.9% availability.
  • Cut compute cost 25% with a metadata-driven framework across AWS EMR and Databricks.
  • Delivered 20 curated datasets for data science and product teams; mentored 2 engineers.
★ only engineer on the account promoted in 2024

Programmer Analyst · Cognizant

Sep 2022 — Oct 2024 · Pune
client: S&P Global · U.S. capital markets
  • Built PySpark and Kinesis pipelines over 500M+ trading records on AWS, cutting latency 15%.
  • Designed data models and Power BI / Looker Studio dashboards, cutting manual reporting 20%.

Programmer Analyst Intern · Cognizant

Mar 2022 — Jul 2022 · Pune
  • AWS cloud data engineering training track.
stack

My toolbox.

What I reach for, roughly in order of how lost I'd be without it. The highlighted ones I use pretty much daily.

Languages 03

PythonSQLPySparkFastAPI

Transform & orchestrate 04

dbtApache Airflowdbt testsCI/CD

Processing & streaming 05

Apache SparkApache KafkaAWS KinesisSpark StreamingAthena

Lake & warehouse 06

SnowflakeDatabricksBigQueryRedshiftAWS S3Azure ADLS

Reliability & governance 05

Data contracts (ODCS)SLAsMonitoring & alertingOpenMetadataTag-based access

Cloud, DevOps & AI 07

AWSAzureTerraformKubernetesArgoCDAzure OpenAIClaude Code
credentials

A few receipts.

AWS Certified Data Engineer – Associate

Amazon Web Services · valid Jul 2025 – Jul 2028

Promoted to Associate (SDE-2 equivalent)

Cognizant, 2024: the only engineer on the S&P Global account promoted that year

B.Tech, Computer Science & Engineering

Amity University, Noida · 2018 – 2022

contact

Got a data mess? Let's talk.

I'm open to Data Engineer and Senior Data Engineer roles on platform, reliability and governance teams, and happy to relocate. Or just say hi. I reply faster than a well-tuned Spark job.

adimd718@gmail.com
— Aditya