# Senior Backend Engineer, Platform, Consumer Apps

**Company:** [Attain](https://hotfix.jobs/companies/attain)
**Location:** Chicago, IL
**Role:** Backend Engineering
**Experience:** 5+ years
**Skills:** Rust, Go, SQL, gRPC, protobuf, GraphQL, Kafka, RabbitMQ, AWS, GCP, Azure, Microservices, Event-Driven Architecture
**Posted:** 2026-07-15

> Senior Backend Engineer building and scaling microservices for Klover's fintech platform, focusing on real-time payments, financial data integrity, and integrations with banks and processors using Rust, Go, and event-driven systems.

## Job Description

## Responsibilities
- Build and evolve microservices that handle high-volume financial and transactional data
- Design and implement APIs that securely connect to third-party payment processors, banks, and fintech partners
- Write thoughtful & quality code that is readable, testable, and easily maintainable
- Develop data-driven services that power account management, transaction history, and financial insights
- Strive for excellent development practices and careful code architecture that is built around rapid releases
- Work cross-functionally with backend, mobile, and product teams to consistently release high-quality, customer-focused financial features
- Adhere to, and improve upon, our agile process through requirement documents, sprint retrospectives, and other regular cadence meetings

## Requirements
- 5+ years of experience building backend services in production environments
- Experience building and scaling backend systems that support financial products and real-time payments
- Experience in environments where data integrity, security, and performance are critical
- Experience building microservices using Rust and Go
- Experience in the financial technology, payments, or banking systems industry
- Familiarity with compliance, security, and data privacy standards (e.g., SOC 2, PCI DSS, GDPR)
- Experience designing transactional and event-driven systems for payments, reconciliation systems, or ledger-like applications
- Familiarity with microservice or Service-oriented Architecture
- Experience using gRPC, protobuf, or GraphQL
- Expert knowledge of SQL and experience designing data models for financial data integrity
- Experience with message queues or event streams (e.g., Kafka, RabbitMQ)
- Experience with cloud environments such as AWS, GCP, or Azure

## Nice-to-Haves
- Willingness to learn and teach in a collaborative environment
- Eagerness to leverage and develop using AI tools
- Strong participation in an open feedback environment

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**Apply:** https://hotfix.jobs/jobs/85db5582-e016-4b18-8f2f-e137501d81aa
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