Java Developer — Remote FinTech Banking & Payments

Andersen Lab; United States; Hybrid; USD 90,000 - 120,000; Full time

Benefits offered by this job

Private health insurance

Sports compensation

Mentoring & career growth

Job summary

Andersen Lab is hiring a Java Developer to work on a digital banking SuperApp, delivering secure, scalable backend services, payment processing, and seamless integrations.

You will own end-to-end banking workflows, trace and fix production issues, and deploy changes with a focus on reliability and performance.

The role offers remote, office, or hybrid options, mentoring, and opportunities to grow in FinTech, cloud, and modern development practices.

Qualifications

• Commercial Java development experience for 2+ years.
• Hands-on FinTech, banking, or payments experience including production backend systems.
• Experience with banking workflows: registration, verification, cards, transfers, loans, deposits, or currency exchange.
• Experience integrating external systems such as core banking, card processing, payment networks, or other services.
• Familiarity with secure banking flows like OTP, authentication, transaction signing, and biometric verification under load and failure scenarios.
• Strong knowledge of Java 17+, Spring Boot 3, Spring MVC, Spring Data JPA, Hibernate, and Spring Security.
• Experience with REST APIs, SOAP, OAuth2/OIDC, and JWT.
• Experience with Kafka or other messaging systems; understanding of idempotency, retries, and error handling.
• Good knowledge of PostgreSQL and SQL, including transactions and query optimization.
• Familiarity with microservices architecture and Camunda BPMN.
• Experience with Docker, Git, Maven, and CI/CD; basic knowledge of Kubernetes/OpenShift.
• Experience with application logging, monitoring, debugging, and production issue investigation.
• Experience with unit and integration testing using JUnit 5 and Mockito.
• Level of English – Intermediate and above.

Responsibilities

• Independently developing, delivering, and supporting end-to-end banking backend workflows using Java, taking ownership beyond individual development tasks.
• Tracing customer transactions across multiple backend services to analyze data flows, dependencies, and system behavior.
• Investigating and reproducing production incidents using application logs and database state to identify root causes.
• Implementing, testing, and safely deploying fixes to production, ensuring system stability and minimizing release risks.

Skills

Java development

FinTech experience

Backend design

REST APIs

Spring Framework

Security & auth

Troubleshooting & incident response

CI/CD

Cloud & DevOps

English (Intermediate+)

Tools

Docker

Git

Maven

CI/CD

Kubernetes/OpenShift

PostgreSQL

Spring Boot 3

Spring MVC

Spring Data JPA

Hibernate

JWT/OAuth2

Kafka

CI/CD pipelines

Job description

Andersen Lab is hiring a Java Developer to work on a digital banking SuperApp, delivering secure, scalable backend services, payment processing, and seamless integrations.

You will own end-to-end banking workflows, trace and fix production issues, and deploy changes with a focus on reliability and performance.

The role offers remote, office, or hybrid options, mentoring, and opportunities to grow in FinTech, cloud, and modern development practices.