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Start.io Tech Stack

Real-time mobile advertising platform with AI-powered audience targeting

Advertising Services New York, NY 51–200 employees Founded 2010 Privately Held

Start.io operates a sell-side advertising platform that processes hundreds of millions of ads daily across mobile apps and websites, powered by real-time audience data and ML inference. The tech stack reveals a production ML infrastructure heavy on inference (Triton, TorchServe, BentoML) and streaming (Kafka, Pub/Sub), with active projects spanning low-latency inference, feature stores, and LLM/RAG systems—indicating a shift toward AI-driven campaign optimization and real-time decisioning. Hiring velocity is accelerating across data (3 roles) and sales (3 roles), suggesting both platform maturation and sales expansion.

Tech Stack 30 technologies

Core StackPython FastAPI Kafka Kubernetes AWS Redis Prometheus Grafana OpenTelemetry Docker PySpark MongoDB Jira Triton Inference Server TorchServe BentoML Pub/Sub GCP OCI Aerospike Bigtable SQL AWS SQS Vertica Testmo TestRail XGBoost LightGBM Kibana Excel

What Start.io Is Building

Challenges

  • Low-latency inference services
  • High availability scalability observability
  • Optimizing latency throughput cost-efficiency
  • Meeting revenue targets
  • Campaign issue resolution

Active Projects

  • Low-latency inference services
  • Real-time decision-making engines
  • Model versioning shadowing a/b testing
  • Batch data pipelines
  • Real-time nlp applications
  • Llm and rag systems
  • Real-time production algorithmic solutions
  • Low-latency feature store
  • Scalable data pipelines
  • Real-time data models

Hiring Activity

Accelerating9 roles · 4 in 30d

Department

Data
3
Sales
3
Engineering
2

Seniority

Senior
4
Junior
2
Lead
1
Mid
1
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About Start.io

Start.io is a mobile marketing and audience platform that delivers advertising at scale across thousands of publishers globally. The company monetizes access to over 100 billion first-party data signals per day, which marketers use to predict consumer behavior and optimize user acquisition campaigns. Founded in 2010 and based in New York, Start.io operates as a privately held company with 51–200 employees. The platform integrates directly with mobile publishers and uses AI to improve ad targeting efficiency and precision across omnichannel campaigns.

HeadquartersNew York, NY
Company Size51–200 employees
Founded2010
Hiring MarketsIsrael, United States, Poland, Ukraine, China

Frequently Asked Questions

What is Start.io's tech stack?

Start.io uses Python, FastAPI, Kafka, Kubernetes, AWS, GCP, and inference frameworks (Triton, TorchServe, BentoML) for real-time ad delivery. Data layer includes Aerospike, Redis, Bigtable, Vertica, and MongoDB. Monitoring via Prometheus, Grafana, OpenTelemetry.

Is Start.io hiring engineers?

Yes. Start.io has 2 active engineering roles posted, with 4 total positions open across data (3), sales (3), and engineering (2). Hiring is accelerating and spans United States, Israel, Poland, Ukraine, and China.

What is Start.io working on?

Active projects include low-latency inference services, real-time decisioning engines, LLM/RAG systems, feature stores, and batch/streaming data pipelines—reflecting a focus on ML-powered, real-time ad optimization at scale.

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