Fintech Engineer

NevkaSystems; EE. UU.; A distancia; USD 120.000 - 160.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Fully remote

Descripción de la vacante

NevkaSystems is hiring a backend engineer focused on fintech services. You will build and maintain APIs for accounts, payments and financial workflows, ensuring accurate records and reliable responses.

You will work with product, design and QA teams in a fully remote role, contributing to code quality, test coverage and robust failure handling across distributed systems. Experience with reconciliation, idempotency and currency handling is valued.

Formación

• Experience building backend services for fintech or payment systems.
• Ability to design robust APIs and reliable data models.
• Experience with automated testing and CI/CD pipelines.

Responsabilidades

• Design and implement APIs and services for accounts, payments and operations.
• Integrate providers via webhooks, auth, failure handling.
• Model transactions and balances with reconciliation.
• Build safe retry and idempotency to avoid double money movement.
• Implement access controls, audit trails, tests and monitoring.
• Collaborate with product, design and QA to release features.

Conocimientos

Fintech backend experience

TS/Java/Go/Python

SQL and relational DBs

API design

CI/CD & Git

System integration

Descripción del empleo

Build the services that connect financial products to the real world. You will work on account, payment and transaction workflows, connect external providers and help turn product requirements into dependable software. The role suits an engineer who understands that accurate records, clear failure handling and maintainable code matter as much as a successful API response.

Responsibilities

• Design and implement APIs and services for accounts, payments and financial operations.
• Integrate payment, banking and verification providers, including webhooks, authentication and failure handling.
• Model transaction states and financial records with careful handling of balances, currencies and reconciliation.
• Build safe retry and idempotency behaviour so interrupted or repeated requests do not duplicate money movement.
• Implement appropriate access controls, audit trails, automated tests and operational monitoring.
• Work with product, design and QA colleagues to release, investigate and improve features.

What you bring

• Experience building backend services for fintech, payments, banking or other transaction-heavy products.
• Strong engineering skills in a backend language such as TypeScript, Java, Go or Python.
• Practical experience with relational databases, API design and third-party integrations.
• Understanding of database transactions, asynchronous processing, idempotency and reconciliation.
• Experience writing automated tests and working with Git and CI/CD.
• Ability to explain technical decisions and investigate problems across connected systems.

Fully remote. Applicant location: Worldwide.