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Overview
Built In Chicago is the online community for Chicago startups and tech companies. Find tech jobs, read articles and research companies in the Chicago tech scene.
News
'Good Managers Should Be Good Listeners': How These Women Leaders Made Their Way Into Management Built In Chicago
Four women in tech share their tips for breaking the glass ceiling.
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Report
Ocient lands $10M Series A
Ocient, which is building a platform for storing and analyzing enormous data sets, announced on Wednesday that it has raised a $10 million Series A.
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Led by Grubhub's co-founder, this tech startup is a trade school in disguise
Fixer, a home repair startup led by Grubhub co-founder Mike Evans, wants to bring handyperson services into the on-demand economy.
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Technologies
Tech DNA
C++
Java
Python
PyTorch
Hadoop
Flink
Apache Iceberg
ClickHouse
PostgreSQL
Claude
LLM
AI/ML
C++
Python
MATLAB
SQL
Scala
pySpark
PyTorch C++
TensorFlow C++
Dask
PyTorch
Claude
Hadoop
Time Series Forecasting
Spark
Flink
Pandas
JAX
TensorFlow
Airflow
Dagster
Jupyter Notebook
NumPy
Quantization
CUDA Toolkit
TensorRT
CNN
SciPy
Polars
AI Agents
AutoGen
Embeddings
Fine-tuning
LangChain
LangGraph
LLM
Ansible
Configuration Management
Kubernetes
Prometheus
Puppet
Docker
Alertmanager
Grafana
Opsgenie
CI/CD
Git
GitLab CI
GitOps
eBPF
AWX
Jenkins
Platform Engineering
TeamCity
Vector
Apache Iceberg
Databricks
ClickHouse
PostgreSQL
Hardware
SystemVerilog
Verilog
VHDL
Rust
Cocotb
UVM
Vitis
Other
Java
Kotlin
Bash
Celery
Apache Kafka
Tcpdump
HashiCorp Vault
Vault
DeFi
MEV
Smart Contracts
Stack modernity
79/100
How modern this stack is, based on technology relevance, AI adoption and the share of legacy tools.
Industry adoption
Python
22%
CI/CD
18%
SQL
17%
Kubernetes
16%
Docker
15%
PostgreSQL
14%
Share of companies in the same industry that use each technology.
Stack changes
Kotlin
Aug 2026
PostgreSQL
Aug 2026
Vector
Aug 2026
LLM
Aug 2026
LangGraph
Aug 2026
LangChain
Aug 2026
Fine-tuning
Aug 2026
Embeddings
Aug 2026
Technologies recently added to or removed from this company's stack - a signal of tech migrations and new initiatives.
Jobgether
Booz Allen Hamilton
Thales Alenia Space
Weekday
Citi
NVIDIA