Backend Software Engineer - Payments platform

Svitla Systems, Inc.; India; On-site; INR 1,500,000 - 2,100,000; Full time

Benefits offered by this job

US and EU projects

Competitive compensation based on your

Vacation and holidays

Medical insurance reimbursement

Learning program

Performance appraisals

Bonuses for article writing

Team celebrations

Friendly team

Job summary

Svitla Systems, Inc. is seeking a hands-on backend engineer to join the Payments platform. You will develop production Java/Spring Boot services, implement new capabilities, and improve reliability in distributed financial systems.

You will own feature work from design to tests, with an emphasis on correctness and performance. Responsibilities include delivering production-ready code via GitLab CI, building idempotent event handlers, and collaborating across teams to ensure transactional

Qualifications

• 5+ years of backend engineering with Java/Spring Boot in production microservices.
• Ownership of production services in distributed systems.
• Experience with GraphQL (Netflix DGS or Apollo client).
• Hands-on experience with AWS SQS, Kafka, or RabbitMQ.

Responsibilities

• Develop and maintain backend Java/Spring Boot services across Payments platform.
• Add new payment methods to platform capabilities.
• Deliver production-ready feature work and bug fixes via GitLab CI with test coverage.

Skills

Java/Spring Boot

Distributed systems

Unit testing

CI/CD pipelines

Observability

Transactional design

Idempotency

Event-driven

Code quality

Tools

GraphQL

Netflix DGS

Apollo GraphQL

AWS SQS

Apache Kafka

RabbitMQ

MySQL

Aurora

Hibernate/JPA

Gradle

GitLab CI/CD

Datadog

GitHub Copilot

Job description

We are seeking a hands-on backend engineer to add new capabilities to the Payments platform, applying deep backend engineering skills to high-stakes, distributed financial systems. The engineer will develop and maintain production Java/Spring Boot services, contributing to feature development, bug fixes, and reliability improvements across the platform.

Requirements

• 5+ years of backend engineering with Java and Spring Boot (Boot 3 preferred) in production microservices.
• Mid-to-senior level, with demonstrated ownership of production services in a distributed systems environment.
• Experience with GraphQL — either building APIs with Netflix DGS or consuming them via the Apollo Java/Kotlin client (Apollo GraphQL client experience required).
• Hands-on experience with AWS SQS, Apache Kafka, or RabbitMQ in event-driven, distributed systems.
• Strong JPA/Hibernate experience with MySQL/Aurora (Spring Data JPA), including transactional design and optimistic locking.
• Experience writing JUnit 5 unit tests with Mockito and integration tests against live environments.
• Proficiency with Gradle multi-module builds.
• Experience with GitLab CI/CD pipelines and Datadog (metrics and monitors).
• Comfortable using AI coding assistants (e.g., GitHub Copilot, Claude) responsibly to accelerate development while maintaining code quality and correctness.
• Experience with financial-grade backend systems where correctness, idempotency, and consistency are non-negotiable.
• Ability to reason clearly about transactional boundaries across external systems (e.g., a third-party billing platform plus a local metadata store).
• Have built or maintained a production Spring Boot service that consumes events from SQS, Kafka, or RabbitMQ.
• Have designed idempotent event handlers for workflows.
• Have written JPA entities and managed schema migrations against a production MySQL/Aurora database.
• Have integrated with an external REST- or SDK-based third-party platform.
• Have set up or worked with Datadog monitors as deploy quality gates in a CI/CD pipeline.

Will be a plus

• Prior experience in the Billing or Payments domain.
• Experience with DynamoDB (AWS SDK v2) and/or MongoDB (Spring Data) in a multi-store architecture.
• Experience with Netflix DGS.

Responsibilities

• Develop and maintain backend Java/Spring Boot services across the Payments platform.
• Add new payment methods to the platform's existing capabilities.
• Contribute to feature development, bug fixes, and reliability improvements across these services.
• Deliver production-ready feature work and bug fixes through GitLab CI, with unit and integration test coverage that meets Jacoco gates.
• Strengthen system reliability through improved observability, resilience patterns, and safe canary and production deploys gated by Datadog monitors.

WE OFFER

• US and EU projects based on advanced technologies.
• Competitive compensation based on skills and experience.
• Regular performance appraisals to support your growth.
• 15 vacation days, 10 national holidays, 10 sick days.
• Free tech webinars and meetups organized by Svitla.
• Reimbursement for private medical insurance.
• Personalized learning program tailored to your interests and skill development.
• Bonuses for article writing, public talks, and other activities.
• Fun corporate online\\offline celebrations and activities.
• Awesome team, friendly and supportive community!