Back End Developer

Job Title: Senior Backend Developer (Java/Python)

Location: Remote

Experience: 12+ years

Domain: FinTech

Role Overview

Senior Backend Developer

Key Responsibilities

• Design, develop, and maintain scalable backend systems using

  Java (Core, J2EE)

  and

  Python

  .
• Architect and implement

  microservices

  -based solutions for enterprise-grade applications.
• Develop, consume, and optimize

  RESTful APIs

  and web services (JSON, JAX-RS, Spring REST).
• Apply advanced concepts of

  Java Multithreading, Concurrency, and Performance Tuning

  .
• Work with both

  NoSQL (MongoDB, Cassandra)

  and

  Relational Databases

  to design optimized data models.
• Leverage

  Docker, Kubernetes

  for containerization and orchestration of applications.
• Implement CI/CD pipelines using

  Git, Maven/Gradle, Jenkins, SonarQube, Artifactory

  .
• Apply

  Test-Driven Development (TDD)

  with

  JUnit, Mockito, PyTest

  and ensure high test coverage.
• Use Python for automation scripting, data processing, and backend integrations.
• Apply

  OOP, design patterns, and enterprise architecture best practices

  in daily work.
• Collaborate with product managers, architects, and cross-functional teams in an

  Agile (Scrum/Kanban)

  environment.
• Conduct

  code reviews, mentorship, and technical guidance

  to junior developers.
• Ensure compliance with

  FinTech security and regulatory standards

  .

Mandatory Skills

• Java (Core, J2EE)

  and

  Python

  (enterprise-level expertise).
• Spring ecosystem (

  Spring Boot, Spring MVC, Spring Data, Spring Security

  ).
• Microservices design and development at scale.
• REST API development and integration.
• Java

  Multithreading, Concurrency, Performance Tuning

  .

• Docker, Kubernetes

  containerization/orchestration.
• CI/CD tools (

  Git, Maven/Gradle, Jenkins, SonarQube, Artifactory

  ).
• Unit testing frameworks (

  JUnit, Mockito, PyTest

  ).
• Agile methodologies (

  Scrum, Kanban

  ) with

  JIRA

  .
• Strong communication and leadership skills.

Preferred / Nice-to-Have Skills

• Exposure to

  Cloud Platforms

  (AWS, Azure, GCP).
• Experience with

  Event-Driven Architecture

  and messaging systems (

  Kafka, RabbitMQ

  ).
• API Gateways, Service Mesh implementations.
• Knowledge of

  FinTech domain security and compliance standards

  .