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About the Role

Self Financial is seeking a Python engineer to join the Business Systems team. This role involves building and operating the integration layer that connects core platforms (CRM, payments, internal services) to essential customer-facing tools in a high-traffic, latency-sensitive environment.

Responsibilities

• Design, build, and maintain Python services (REST APIs) that integrate our CRM platform with downstream systems like payments, account management, and internal data services.
• Diagnose and resolve performance issues in production, including blocking I/O, connection handling, caching strategy, and API latency under load.
• Use async Python (asyncio) to safely parallelize I/O-bound work without degrading service throughput.
• Implement and tune caching layers (e.g., Redis) for high-throughput endpoints.
• Build and maintain integrations with a CRM platform (e.g., Salesforce), including data queries and REST-based sync.
• Deploy and operate services in a cloud environment (AWS or similar): serverless functions, containerized services, and monitoring/alerting.
• Use observability/APM tooling to trace requests, identify bottlenecks, and validate fixes with real production data.
• Write clean, well-tested, maintainable code following solid architectural patterns (clear separation of API, business logic, and infrastructure layers).
• Participate in a rotating on-call/production-support role: triage alerts, coordinate fixes across teams, and help prevent incidents from becoming outages.
• Collaborate closely with other engineering teams, DevOps/SRE, and product stakeholders to scope and ship integration work.

Requirements

• Strong professional experience with Python, including async programming and building/maintaining REST APIs.
• Solid understanding of data integration between services - how to reliably move, sync, and reconcile data across systems (batch or event-driven), handle failures/retries, and keep data consistent when systems disagree.
• Solid understanding of HTTP and API design (pagination, timeouts, rate limiting, caching), and experience debugging performance issues in a live service.
• Experience with at least one major cloud provider (AWS preferred) - serverless functions, containerized services, or similar.
• Comfort reading logs and distributed traces to debug systems issues, not just local code.
• Strong written and verbal communication - this team documents root causes and coordinates fixes across other engineering teams.
• Experience with Twilio (Voice, Studio, Flex, or similar telephony/IVR platforms) is helpful.
• Experience integrating with Salesforce (SOQL, Apex, REST APIs).
• Familiarity with an APM/observability platform (e.g., Dynatrace, Datadog, New Relic), including instrumenting services with distributed tracing (e.g., OpenTelemetry) or structured logging.
• Comfort writing SQL for debugging and data validation across systems (e.g., data warehouse queries, CRM query languages like SOQL).
• Familiarity with API documentation tooling (OpenAPI/Swagger).
• Experience with AWS Step Functions, container autoscaling, or infrastructure-as-code (Terraform).
• Prior on-call/production-support experience in a fast-moving environment.
• Must successfully pass a background check.
• Must be a U.S. Citizen or Green Card Holder.

Skills

• Python
• async programming
• REST APIs
• data integration
• HTTP
• API design
• performance debugging
• Redis
• AWS
• serverless functions
• containerized services
• monitoring
• alerting
• observability/APM tooling
• distributed tracing
• structured logging
• SQL
• SOQL
• OpenAPI/Swagger
• AWS Step Functions
• container autoscaling
• infrastructure-as-code
• Terraform
• Twilio
• Salesforce

Location

• Remote

Work Type

• Full-time
• Remote

Experience Level

• Professional

Salary/Compensations

• $140,000-170,000 annually

Benefits

• Company equity in the form of Stock Options
• Performance-based bonuses
• Generous employer-paid health, vision and dental insurance coverage
• Flexible vacation policy
• Educational assistance
• Free gym membership
• Casual dress code
• Team building events and activities
• Remote work arrangements/ flexible work schedule
• Paid parental leave

About the Company

• Self Financial is a venture-backed, high-growth FinTech company with a mission to increase economic inclusion and financial resilience by empowering people to build credit and build savings.
• We're looking for people who share our passion and are driven to tackle challenges, find solutions and make the financial space better for the communities we serve.
• Our team is passionate about challenging the status quo of the credit industry by providing people accessible tools to take control of their credit.
• Executing on our mission requires deep collaboration across our teams to ensure our products reach the people who can benefit from them the most, particularly the 100 million+ Americans who have no or low credit.

Equal Opportunity

• We are an Equal Opportunity Employer.
• We celebrate diversity and are committed to creating an inclusive environment for all employees. To that end, we seek to recruit, develop and retain the most talented people from a diverse candidate pool.