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Company profile

Rain Tech Stack

Earned wage access and financial health platform for hourly workforces

Financial Services Santa Monica, CA 51–200 employees Founded 2019 Privately Held
rain.aero LinkedIn

Rain runs an employer-integrated earned wage access and financial wellness app on a Go and Python backend with Kafka, Flink and RabbitMQ for event streaming. Hiring is overwhelmingly engineering and skewed to senior, staff and lead levels across European hubs like Spain, Portugal and Romania, focused on ledger precision, reconciliation and banking-partner integrations. A heavy security toolchain (Semgrep, Snyk, Trivy, Burp Suite) signals compliance-driven fintech engineering.

Tech Stack 68 technologies

Core StackGo Python PostgreSQL Kafka AWS RabbitMQ Apache Flink Docker Kubernetes GitLab CI/CD Snyk C++ Looker Grafana Snowflake Metabase Superset dbt Fivetran Pandas NumPy Azure GCP AWS ECS Semgrep Trivy Burp Suite eBPF AWS Security Hub DLP+36 more

What Rain Is BuildingChallenges and projects from their job posts

◆Challenges

  • Scaling backend platform for hyper growth
  • Maintaining ledger precision and reconciliation
  • High availability across microservices and APIs

▲Active Projects

  • Banking partner integrations
  • Core systems for banking, payroll and timekeeping
  • Designing novel financial product systems
  • Third-party vendor and partner API integrations
  • Personal financial health product development
  • Monitoring and performance optimization

Hiring Activity

Decelerating60 roles · 6 in 30d

Department

Engineering
53
Sales
4
Finance
1
Legal
1
Ops
1

Seniority

Senior
21
Lead
20
Staff
14
Mid
2
Director
1
Junior
1
Manager
1

Notable leadership hires: Tech Lead

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About Rain

Rain is a Santa Monica, CA–based fintech founded in 2019 that offers employees on-demand access to earned wages alongside budgeting, spending analysis and wealth-building tools. The product is distributed through employers as a workforce benefit and connects to payroll and timekeeping systems. The company is privately held with 51–200 employees. Its engineering organization spans the United States and several European countries, including Spain, Portugal, Romania, Italy, the United Kingdom, the Netherlands and Sweden.

HeadquartersSanta Monica, CA
Company Size51–200 employees
Founded2019
Hiring MarketsSpain, Portugal, Romania, Italy, United Kingdom, Netherlands, United States, Sweden

Frequently Asked Questions

What tech stack does Rain (rain.aero) use?

Rain builds on Go and Python with PostgreSQL, Kafka, RabbitMQ and Apache Flink, runs on AWS, Azure and GCP with Docker and Kubernetes, and uses Snowflake, dbt, Fivetran and Looker for analytics.

Is Rain hiring engineers?

Yes. Engineering dominates Rain's open roles, mostly at senior, staff and lead levels, though overall hiring velocity is currently decelerating.

What countries does Rain hire in?

Rain hires in the United States, Spain, Portugal, Romania, Italy, the United Kingdom, the Netherlands and Sweden.

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How this profile is built

Rain's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →

This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.