Senior Software Engineer - Full Stack

Worth AI•Miami, FL

3h•Remote

About The Position

Worth is seeking a Senior Software Engineer to join its Integrations Squad and own systems connecting Worth to external providers, customers, and internal services. The squad builds third-party data integrations that support crosswalking and decisioning; public APIs and SDKs; customer integrations with banks, lenders, processors, and ISVs; and internal service connectors. This hands-on role involves designing and delivering the integration layer through which more than 700 million SMB records flow, translating complex partner APIs and customer requirements into technical plans, and building for rate limits, schema changes, partial outages, and data-quality issues. The engineer will contribute directly while providing technical leadership across the squad and broader product.

Requirements

At least 8 years of professional software engineering experience.
Demonstrated ownership of major production features or subsystems, ideally with significant integration or platform API surface area.
Deep expertise in the Node.js and TypeScript ecosystem.
Strong system design skills, especially for resilient integrations, including retries, idempotency, circuit breakers, rate limiting, webhook handling, and graceful degradation.
Experience designing or operating a public API or SDK, including versioning, authentication, contracts, and developer ergonomics.
Hands-on experience with PostgreSQL, including schema design and query optimization.
Experience building or maintaining event-driven systems using Kafka.
Comfort operating containerized applications in Kubernetes.
Proven ability to refactor complex or legacy integration code into modular, swappable, well-tested adapters.
Demonstrated experience mentoring junior engineers and raising team quality standards.
Ability to work effectively in high-ambiguity environments, including when partner specifications are incomplete, contradictory, or changing.

Nice To Haves

Direct experience integrating with KYB, KYC/IDV, AML, fraud, banking, or identity data providers.
Experience building and shipping a public SDK in one or more languages.
Experience with AWS services including MSK, RDS, EKS, S3, and Lambda.
Experience with Infrastructure-as-Code tools such as Terraform.
Strong background in distributed caching strategies using Redis, including response caching, deduplication, and rate limiting.
Experience with Redshift schema design and ETL pipelines for vendor data.
Production experience with Python in backend systems.
Background in fintech, payments, lending, or regulated data environments.

Responsibilities

Own the design and implementation of major integrations and subsystems, from partner evaluation through production rollout and ongoing operation.
Build and maintain third-party data-provider integrations across KYB, KYC/IDV, AML, fraud, banking, and identity, and abstract them behind clean, versioned internal contracts.
Design, evolve, and operate public REST APIs and SDKs, emphasizing versioning, backward compatibility, authentication, rate limiting, and developer experience.
Translate ambiguous partner specifications, customer integration requirements, and vendor edge cases into clear technical designs and tradeoffs.
Write production code across backend and, where needed, frontend systems using Node.js, TypeScript, Nest.js, and React.js.
Design and evolve PostgreSQL schemas for vendor responses, normalization layers, and crosswalking metadata, with attention to indexing, performance, and data integrity.
Build event-driven workflows with Kafka and Redis to orchestrate enrichment, retries, dead-lettering, and backpressure across slow or unreliable upstream APIs.
Optimize slow queries and address systemic performance bottlenecks in high-throughput integration pipelines.
Deploy, monitor, and debug containerized integration services in Kubernetes, including alerts and runbooks for detecting vendor degradation.
Refactor legacy or accumulated integration code into modular, testable, swappable adapters.
Handle production incidents, including vendor outages, schema changes, authentication rotations, and quota exhaustion, and harden systems to prevent recurrence.
Lead by example in code reviews and coach others on integration patterns, resilience, testing strategy, and API design.
Communicate complex tradeoffs across engineering, product, partnerships, and customer-facing teams.