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# Senior Back-End Engineer (Fintech)

- **Company:** Remote Operation
- **Location:** United States (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Artificial Intelligence, Application Performance Management, Software as a Service, Software Quality, Data Stores, Cursor (Graphical User Interface Elements), Elasticsearch, Payment Systems, Python (Programming Language), NoSQL, Redis, Swagger, Software Engineering, SQL Databases, Data Streaming, Openapi, GitHub Copilot, Delivery Pipeline, Spring-boot, Caching, Backend, Apache Kafka, Graphql, Front End Software Development, Api Design, Grpc, Microservices
- **Published:** August 24, 2026
- **Apply:** https://arc.dev/remote-jobs/j/redirect/pecfk70usd

## About the Role

* Minimum of 7 years in a Software Development role
 * Strong architectural judgment and code quality ownership - the ability to design good systems, not just write good code
 * Solid command of Java and Spring Boot
 * Demonstrated, hands-on experience using AI coding assistants in a production engineering context - a practiced workflow, not just familiarity
 * Ability to critically evaluate AI-generated code for correctness, security, and maintainability
 * Experience designing and implementing micro-services
 * Knowledge of API design with REST, gRPC, GraphQL and API documentation with OpenAPI/Swagger
 * Experience with various data store, streaming and caching solutions (SQL and NoSQL databases, Redis, MQ, Kafka, Elasticsearch)
 * Ability to draw and document technical solutions prior to implementation
 * Ability to communicate effectively in a remote environment - clear written communication, reliable async collaboration

Preferred Skills

 * Experience decomposing complex tasks into agent-friendly subtasks, or building and configuring simple automation pipelines
 * TDD by default - especially important in an AI-assisted workflow where tests are the primary safety net on generated code
 * Experience working on a SaaS platform, or at least a custom-built product
 * Proven knowledge of Online Payment, Payroll or Invoicing domains
 * Some experience with Python
 * Strong sense of security and application performance
 * Strive to solve complex problems with simple, effective solutions
 * Self-directed and self-improving: you manage your own time, define your own growth path, and hold yourself to a high bar without waiting to be told

## Description

We're seeking an experienced Senior Back-End Engineer who combines strong architectural judgment with a high-ownership mindset and a genuine drive to operate at the frontier of modern engineering practices.

What you'll be doing
ⓘ View potential timezone restrictions

You'll join one of our cross-functional squads - working alongside a Product Manager, a Designer, Front-End, Back-End and QA Engineers - building the world's best Employer of Record platform. We are a remote-first team spread across Asia and Europe, so clear async communication and cross-timezone collaboration are part of how we work every day. You'll own meaningful pieces of the product end-to-end, from design to rollout, with the autonomy and responsibility to make technical decisions and the expectation to deliver value at speed without compromising quality. AI tooling is a first-class part of how we work: you'll leverage it to move faster, and you'll be the quality bar on everything that ships.

Responsibilities

 * Design, develop and document fast, secure and easy-to-use APIs consumed by both front-end and back-end applications
 * Build effective integrations with other applications and third-party software
 * Own the entire implementation cycle from design to rollout
 * Leverage AI coding tools (e.g. Cursor, Claude Code, GitHub Copilot) as a core part of your development workflow to accelerate implementation
 * Act as the quality gate on AI-assisted development: review, validate and refactor generated code to ensure it meets architecture, security and maintainability standards
 * Design and orchestrate lightweight automation and agent workflows to eliminate repetitive engineering tasks (test generation, data migrations, boilerplate, monitoring scripts)
 * Contribute to the squad's adoption of AI-assisted engineering practices and share learnings across the Back-End Chapter
 * Contribute to requirements review and work closely with Product Manager to design and plan new features
 * Participate in the Back-End Engineering Chapter and contribute to global architecture decisions


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