Senior Java API Engineer(Full PST Coverage)

We are seeking a highly skilled Java API Engineer to join our global technology team. In this role, you will design and develop secure, high-performance, and scalable RESTful APIs that power complex enterprise systems. You will collaborate with talented engineers worldwide, contributing to innovative software projects across diverse industries such as fintech, cybersecurity, and enterprise solutions.

• Design, develop, and maintain robust Java-based APIs and backend services.
• Implement multi-threaded and cache-enabled solutions for optimized performance.
• Write clean, efficient, and well-documented code following industry best practices.
• Perform unit testing, code reviews, and integration testing to ensure high-quality deliverables.
• Collaborate with cross-functional teams to design scalable and secure application architectures.
• Deploy, configure, and manage applications in Apache Tomcat or equivalent servlet containers.
• Work with AWS cloud services (EC2, S3, Lambda, RDS) to build cloud-ready systems.
• Develop and optimize SQL queries and stored procedures for MySQL, Oracle, or SQL Server.
• Use tools like Postman, Jira, and Kanban boards for testing, tracking, and collaboration.
• Contribute to continuous improvement by mentoring peers and sharing best practices.

• 8+ years of professional experience in Java software development (no gaps).
• 3+ years of experience designing and programming RESTful APIs in a Java-based environment.
• Strong command of Java (JDK 1.6 – 19+) and understanding of OOP principles, inheritance, and polymorphism.
• Proficiency in multithreading, semaphores, singletons, and design patterns.
• Ability to design and optimize systems using Big-O notation for performance analysis.
• Experience with data structures, collections, maps, and sorting algorithms.
• In-depth knowledge of Apache Tomcat, Eclipse IDE, and AWS environments.
• Working knowledge of relational databases and ERD design.
• Excellent communication skills with strong attention to detail (minimum 8.2 on TrueNorth English scale).
• Prior experience working with international or U.S.-based clients.

ABOUT ISHIR

ISHIR is a digital innovation and enterprise AI services provider. We work with startups and enterprises to shape the future through accelerated innovation, deep technical expertise, access to global digital talent and a passion for complex problem-solving. With our help, our clients overcome their most difficult digital challenges leveraging AI.

We are not just consultants, we are partners in our clients' success, assisting them with re(gaining) competitive edge by identifying opportunities for differentiation, industry disruption, scalable innovation, and go-to-market strategies that deliver successful outcomes.

At ISHIR, we help bold businesses accelerate innovation through Talent, Speed-to-Market, and AI. We help make an impact by solving real problems using innovation, improved customer experiences and the right technologies.

As an ISHIR employee, you will get the advanced training you need to be successful, and the opportunity to apply it. You must be passionate about technology, crave responsibility, and be eager to apply your knowledge to real business solutions for our startup and enterprise customers. These are the qualities of a person destined for success at ISHIR.

ISHIR attracts a special type of individual—someone who is proactive, thrives on challenges, feeds off success, and looks at moving targets not as obstacles but as opportunities. ISHIR is an exciting place to work. It is imbued with an entrepreneurial spirit and promotes self-reliance, open communication, and collaboration.