Senior Java Developer

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

• 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, banking APIs, and crypto custody solutions.
• Write unit, integration, and load tests to ensure production‑grade quality.
• Participate in architecture discussions while contributing actively to code development.
• Support CI / CD, monitoring, and incident response as part of an engineering‑driven culture.

Job Specification

Job Rewards and Benefits

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