Senior Backend Engineer | SpringWater team
New
H
HostingerAffiliate marketing
Based in Europe
Department: Product
Location: Romania
Workplace: RemoteFull-TimeSenior
SalaryAt least 5,500 EUR per month
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Job Details
- Experience
- 5+ years of backend engineering experience
- Required Skills
- PostgreSQLPythonSQLRuby on RailsTypeScriptRESTful APIsBigQuerydbt
Requirements
- 5+ years of backend engineering experience, with strong proficiency in Ruby on Rails, or solid Python/TypeScript skills with a genuine willingness to learn our stack.
- Strong SQL skills, including writing complex queries, optimizing slow queries, and working with both PostgreSQL and BigQuery in production environments.
- Experience building and maintaining REST APIs and background job systems (e.g., Sidekiq, Celery, or similar), with an understanding of reliability, retries, and failure handling.
- Experience building internal tooling and dashboards - revenue reports, payout summaries, cohort analyses, or similar business-facing data products, ideally tied to financial or affiliate data.
- Async-first, high-ownership work style - comfortable communicating through written updates, making independent decisions, and taking full responsibility for features from build through monitoring.
- Practical experience using AI-assisted development tools (such as Cursor, Claude Code, GitHub Copilot, or similar) as a regular part of the development workflow to increase output quality and speed.
Responsibilities
- Build and maintain backend features - APIs, background jobs, integrations.
- Improve and maintain our data pipeline - write reports and queries in PostgreSQL and BigQuery.
- Build internal dashboards and reports - payout summaries, revenue attribution, cohort breakdowns, etc.
- Fix performance issues - bad queries, slow background jobs, bottlenecks.
- Use AI tools (Claude Code, Cursor) daily to move faster.
- Work async with a small team - few meetings, lots of ownership.
- Jump in on technical support.
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