Senior Backend Engineer (Python)
Summary
StairwaySoft is hiring a Senior Backend Engineer to design REST APIs, data ingestion/scraping pipelines, and backend services for a compliance and business-verification platform serving financial institutions and fintechs. Core stack: Python, PostgreSQL/MySQL, cloud (GCP/AWS/Azure), and async queue-based distributed systems.
StairwaySoft is an Israeli-Ukrainian engineering provider of custom software solutions for SMBs and startups. We’re looking for a Senior Backend Engineer to join a product team building a compliance and business verification platform for financial institutions and fintech companies.
The product helps regulated businesses verify companies, process business data, and automate compliance workflows using real-time data and AI-driven automation. The platform operates in a security-sensitive environment where reliability, performance, and data quality are critical.
Responsibilities:
Design and develop customer-facing REST APIs and supporting documentation
Build and own backend services from architecture through implementation and production support
Develop secure and reliable data ingestion and processing pipelines
Build scraping and parsing components for collecting and structuring external data
Design backend systems with scalability, resilience, and performance in mind
Work with asynchronous processing, queues, pub/sub, retries, idempotency, and eventual consistency
Monitor how features perform in production and improve them based on real usage and customer feedback
Contribute to engineering standards, technical decisions, and development practices
Work closely with product and other stakeholders to understand problems and deliver practical solutions
Requirements:
5+ years of commercial backend engineering experience
3+ years of experience with Python, or strong experience with a similar backend language and willingness to work primarily in Python
Strong experience designing and maintaining REST APIs
Experience owning backend systems end-to-end in production
Good understanding of distributed systems and asynchronous processing
Strong experience with relational databases such as PostgreSQL or MySQL
Solid knowledge of data modelling, indexing, query optimization, and schema evolution
Experience working with cloud environments such as GCP, AWS, or Azure
Experience with CI/CD and production deployments
Strong product mindset and ability to understand the business problem behind a technical task
Upper-Intermediate English proficiency
Would be a strong advantage:
Experience building web scrapers at scale
Experience in fintech, KYC/AML, fraud, compliance, or other regulated domains
Experience with high-throughput data pipelines or stream processing
Experience with Kafka, Pub/Sub, Dataflow, or Flink
Experience with Rust, Go, or C++ for performance-critical components