Senior Java Backend Engineer - FinTech, Secure, Remote

ToGo Infinity; Karachi Division; Remote; PKR 16,963,000 - 22,619,000; Full time

Job summary

A leading financial technology firm is seeking a skilled backend developer to design and implement Java-based microservices. You will engage in secure API development and support high-volume transaction systems in a remote-first setting, with occasional meetings in Karachi. The ideal candidate has over 5 years of experience in Java and related technologies, with a strong understanding of financial services systems and security best practices.

Benefits

Accommodation

Communication

Gratuity

Health Insurance

Incentive Bonus

Leaves

Life Insurance

Medical

Pension

Provident Fund

Sports and Entertainment

Transport

Qualifications

• 5+ years of professional backend development in Java (8 or above).
• Deep expertise in Spring Boot, Hibernate/JPA, and RDBMS (PostgreSQL, MySQL, or Oracle).
• Strong background in financial services systems (core banking, payments, settlement, reconciliation).
• Mastery of transaction integrity, concurrency, and distributed systems design.
• Hands-on experience with messaging queues / event streaming (Kafka, RabbitMQ).
• Proficiency in secure coding standards and financial-grade authentication.
• Solid skills in Docker, Kubernetes, CI/CD pipelines, and Git.

Responsibilities

• Design and implement Java-based microservices using Spring Boot and Hibernate/JPA.
• Develop secure RESTful APIs for payments, wallets, and account management.
• Engineer fault-tolerant, idempotent transaction systems with full audit trails.
• Implement and optimize high-volume, low-latency transaction workflows.
• Apply best practices in security (OAuth2, JWT, TLS, PCI-DSS compliance).
• Integrate with payment networks and banking APIs.
• Write unit, integration, and load tests to ensure production-grade quality.
• Participate in architecture discussions while contributing to code development.
• Support CI/CD, monitoring, and incident response.

Skills

Java backend development

Spring Boot

Hibernate/JPA

RDBMS

Financial services systems

Message queues

Docker

Kubernetes

CI/CD pipelines

Git

Job description

A leading financial technology firm is seeking a skilled backend developer to design and implement Java-based microservices. You will engage in secure API development and support high-volume transaction systems in a remote-first setting, with occasional meetings in Karachi. The ideal candidate has over 5 years of experience in Java and related technologies, with a strong understanding of financial services systems and security best practices.