Staff Backend Engineer, Platform, Consumer Apps - Klover

Attain

$120K — $160K *
Finance & Insurance
5 - 7 years of experience
Job Overview by Ladders

Qualifications

  • 5+ years of experience in backend services within production environments.
  • Background in financial technology, payments, or banking systems.
  • Familiarity with compliance and security standards like SOC 2, PCI DSS, and GDPR.
  • Skill in designing transactional and event-driven systems for payments or ledger applications.
  • Experience with microservice architecture and principles.
  • Proficiency with SQL and designing data models for integrity.
  • Comfortable using cloud environments like AWS, GCP, or Azure.

Responsibilities

  • Build and enhance microservices for high-volume financial data.
  • Design and implement secure APIs for payment processors and fintech partners.
  • Write clean, maintainable, and testable code.
  • Develop services for account management and financial insights.
  • Maintain high standards in development practices and code architecture.
  • Collaborate with cross-functional teams for user-centric feature releases.
  • Participate in agile processes and improve upon code review practices.

Benefits

  • Flexible hybrid work schedule depending on location.
  • Collaborative work environment with opportunities for professional growth.
  • Access to modern technologies and involvement in cutting-edge fintech solutions.
Full Job Description
About Attain

Klover's engineering team powers one of the fastest-growing fintech platforms in the U.S., supporting over one million active users each month. Our systems process and move more than $1.5 billion annually, enabling real-time access to financial tools, rewards, and services that help people improve their day-to-day lives.

As part of this team, you'll help design, build, and scale the systems that underpin Klover's core products and platform. You'll work on high-impact, production-grade systems that prioritize reliability, security, and performance, and that integrate with a broad ecosystem of internal and external services. The work you do will directly shape how users interact with Klover's products, access their money, and experience transparent, low-fee financial services.

Klover engineers collaborate closely with colleagues across backend, frontend, data science, and product teams to deliver scalable, high-quality solutions for a rapidly growing user base. You'll have the opportunity to work with modern technologies and architectures while helping define and evolve the next generation of inclusive, data-powered financial products-building systems and interfaces that emphasize reliability, privacy, and performance at scale.

Attain Office Hybrid Schedule (where applicable):
  • Redwood City, CA: Mondays (in-office for stand-ups, all-hands) and choice of three days between Tues-Friday
  • Chicago, IL & New York, NY: 4 days in-office; 1 day remote
You'll be a great fit for the role if
  • You are excited to build and scale backend systems that support financial products and real-time payments
  • You thrive in environments where data integrity, security, and performance are critical
  • You are excited to build microservices using Rust and Go
  • You have a willingness to learn and teach in a collaborative environment
  • You're eager to leverage and develop using AI tools
  • You've been complimented on how well you participate in an open feedback environment

What your day to day will look like
  • 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

Preferred Qualifications
  • 5+ years of experience building backend services in production environments
  • 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

We're excited to hear from you.

At Attain, we are passionate about finding people to continuously help us grow our organization. We encourage you to apply, even if your experience doesn't match every detail of the job description. If we don't see something that immediately fits, we will keep your resume on file for future opportunities.

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