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Senior Fullstack Python + TypeScript Engineer

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Referral bonus: $800

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Olha Chopyk

Recruiter at Ralabs

[email protected]

We are seeking a Senior Fullstack Python + TypeScript Engineer for a US-based SaaS company in marketing analytics.

About the Client

The client is an American SaaS company in marketing analytics. Its platform helps e-commerce brands understand which ad spend truly drives revenue. It collects tracking data, combines it with data from major ad platforms, and uses ML modeling to turn it into reporting.

The company’s customers spend millions per month on advertising, so data volumes are large and business decisions depend on data accuracy.

About the Project

There are several projects in progress:

Conversion API (main project): reprocessing tracking signals and delivering them to ad-platform APIs in real time. Each platform’s API works differently and has its own quirks, so integrations require careful work. Stack: Python streaming, Google Pub/Sub, Shopify JS tracking.
Mobile attribution SDK (greenfield): a new SDK for JavaScript and iOS.
Analytics data pipelines: pipelines built as part of the SaaS product, not internal BI.
Full-stack product development: application features and integrations.

Requirements and responsibilities

Requirements:

Senior or Staff level, 7+ years of commercial experience in software engineering
5+ years of commercial experience with Python in production
Strong TypeScript skills for building application features on the frontend
Strong SQL and deep understanding of databases
Full-stack experience: delivering product features and integrations end to end, across backend and frontend
Experience with GCP and BigQuery
Track record of building customer-facing products, not just internal tools or dashboards
Ability to design engineering abstractions and discuss architectural decisions with the team, explaining trade-offs
Fluent English (C1) for daily communication with the US team: syncs, technical discussions and written communication

⏰ Important: Readiness to work with overlap with the US team until 10–11 PM Kyiv time

Responsibilities:

Work as a full-stack engineer on product features and integrations across frontend and backend
Develop application features as part of full-stack product development
Build integrations within the SaaS platform
Contribute to architecture discussions and engineering abstractions

Nice-to-have:

Experience with e-commerce and tracking analytics
Experience with Google Pub/Sub and Airflow

We offer

Work vibe

Flexible full-time/part-time hours
No micromanagement—time logging is for accounting only
High-quality equipment (MacBook or your own device)
Dynamic, low-bureaucracy environment
Team events, swag, and a great crew to hang with

Holidays and leaves

20 days of paid annual vacation;
15 days of paid sick leaves;
Possibility to use vacation during probation;
Maternity and paternity leave;
Days off on all government holidays.

Education

$100 annual education allowance
Mentorship program—learn or lead
English lessons with biannual reviews
Certification cost reimbursement
Free access to Udemy courses on request

Perks

Social package: medical insurance, sports compensation, or psychological training
IT Club Loyalty card (Lviv IT Cluster)
No overtime—work-life balance matters
Transparent payments in EUR/USD, on time every month
Assistance with military reservation procedure