Senior Java Developer

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

Job Description

ToGo Infinity builds high‑performance financial technology systems, powering payments, digital banking, card processing, and cryptocurrency infrastructure. Our focus is security, scalability, and global‑grade reliability. This position is remote‑first, with need‑based meetings at our Karachi office.

Responsibilities

1. Design and implement Java‑based microservices using Spring Boot and Hibernate/JPA.
2. Develop secure RESTful APIs for payments, wallets, and account management.
3. Engineer fault‑tolerant, idempotent transaction systems with full audit trails.
4. Implement and optimize high‑volume, low‑latency transaction workflows.
5. Apply best practices in security (OAuth2, JWT, TLS, PCI‑DSS compliance).
6. Integrate with payment networks, banking APIs, and crypto custody solutions.
7. Write unit, integration, and load tests to ensure production‑grade quality.
8. Participate in architecture discussions while contributing actively to code development.
9. Support CI/CD, monitoring, and incident response as part of an engineering‑driven culture.

Job Specification

1. 5+ years of professional backend development in Java (8 or above).
2. Deep expertise in Spring Boot, Hibernate/JPA, and RDBMS (PostgreSQL, MySQL, or Oracle).
3. Strong background in financial services systems (core banking, payments, settlement, reconciliation).
4. Mastery of transaction integrity, concurrency, and distributed systems design.
5. Hands‑on experience with messaging queues / event streaming (Kafka, RabbitMQ).
6. Proficiency in secure coding standards and financial‑grade authentication.
7. Solid skills in Docker, Kubernetes, CI/CD pipelines, and Git.

Job Rewards and Benefits

• Accomodation
• Communication
• Gratuity
• Health Insurance
• Incentive Bonus
• Leaves
• Life Insurance
• Medical
• Pension
• Provident Fund
• Sports and Entertainment
• Transport