Sr. Java Developer

Wissen Technology is now hiring for a Java Developer

Location : Bangalore (The candidate must be based in Bangalore, as an in-person interview is a mandatory part of the selection process)

Notice Period: Immediate to Serving Notice Period & Up to 30 Days max

Skills: Hands-on experience in Core Java, Spring Boot, Microservices, Algorithms, Data Structure and SQL

Note: Bachelor's or Master's degree from a top-tier college or university is must.

Key Responsibilities:

• Design, develop, and test low-latency, high-volume client-facing applications.
• Develop and maintain enterprise-scale, n-tier applications for the investment banking/capital markets domain.
• Implement microservices-based solutions using Spring Boot and other modern frameworks.
• Work extensively with Core Java 5.0 and above, Spring Framework, and CXF
• Optimize applications for multi-threading and high-performance server-side development
• Collaborate with cross-functional teams to design and implement scalable, secure, and efficient solutions
• Work with RDBMS (preferably Sybase) to handle large-scale data processing.
• Develop and maintain applications on Unix/Linux environments
• Utilize enterprise application design patterns to build robust and scalable solutions.
• Troubleshoot and resolve complex technical issues while ensuring application stability and performance.

Required Skills & Experience:

• 1 to 6 years of hands-on experience in Java development
• Strong knowledge of microservices architecture and cloud-based deployment.
• Expertise in Spring Framework, Spring Boot, and CXF
• Experience in developing and optimizing applications for high-volume, multi-threaded environments
• Solid understanding of financial domain applications, sales, and trading platforms
• Proficiency in working with relational databases (Sybase preferred)
• Familiarity with Unix/Linux environments and shell scripting.
• Strong analytical, problem-solving, and communication skills.
• Ability to articulate and present design ideas effectively.
• Education: Bachelor's or Master's degree from a top-tier college or university is must.

We're looking for highly skilled experienced engineers to design and build high-scale, cloud-based data processing systems that can handle massive amounts of data with low latency. You'll work with a team of smart, motivated, and diverse people and be given the autonomy and support to do your best work. This is a rare opportunity to make a meaningful impact in society while working in a dynamic and flexible workplace where you'll belong and be encouraged.

Qualifications:

• Bachelor's Degree required
• Significant experience with distributed systems.
• Experience with modern programming languages such as Java, C#, C/C++, or Ruby.
• Experience with container platforms such as DC/OS, Kubernetes
• Fluency in technologies and design concepts around Big Data processing and relational databases, such as the Hadoop ecosystem, Map/Reduce, stream processing, etc.
• Experience with production operations and good practices for putting quality code into production and troubleshooting issues when they arise.
• Effective communication of technical ideas verbally and in writing, including technical proposals, design specs, architecture diagrams, and presentations.
• Ability to collaborate effectively with the team and other stakeholders.
• Preferably, production experience with Cloud and data processing technologies.

Responsibilities:

As a member of the software engineering division, you will take an active role in the definition and evolution of standard practices and procedures. Define specifications for significant new projects and specify, design and develop software according to those specifications. You will perform professional software development tasks associated with the developing, designing and debugging of software applications or operating systems.

• Design and build distributed, scalable, and fault-tolerant software systems.
• Build cloud services on top of the modern OCI infrastructure.
• Participate in the entire software lifecycle, from design to development, to quality assurance, and to production.
• Invest in the best engineering and operational practices upfront to ensure our software quality bar is high.
• Optimize data processing pipelines for orders of magnitude higher throughput and faster latencies.
• Leverage a plethora of internal tooling at OCI to develop, build, deploy, and troubleshoot software.

• You are a great teammate with proven capabilities working on SaaS product and a passion for writing exception code.
• You are hungry for an opportunity to join a start-up and become a member of core platform team driving the company forward.
• Has good analytical and problem-solving skills and is able to break down a solution into smaller units of work and produce a solution roadmap.
• Has written high quality, well-tested shared components that can be leveraged by multiple systems. Can step into specific projects to supply additional management, coding and engineering capacity as needed.
• Has expert knowledge in distributes systems and high-volume transactions.
• Understand the product mission, goals, and tasks and execute with the team to achieve them.
• Understand the design and architecture and build modules in accordance with it or recommend and make the necessary changes that adds more stability to our product.
• Improve the quality of our front-end code and our overall front-end user experience.
• Takes requirements (business features, technical debts and internal enhancements) and designs resilient solutions. 

• 1+ years of hands-on experience in Java/Kotlin.
• Demonstrable understanding of Design Patterns.
• Experience in Context & Dependency Injection or Spring framework, Hibernate/JPA.
• Experience in RESTful/SOAP web services in integrating with 3rd Party API Integrations.
• Proficient in SQL (PostgreSQL) and NoSQL databases.
• Experience in multi-threading and concurrency is a plus Experience in JMS messaging using Apache Zookeeper and Kafka is a plus.
• Experience in Angular is a plus. Knowledge of modern CI/CD environments: Git, Gradle, GitLab Familiarity with tools like Postman, SOAPUI, IntelliJ

• Willing to learn our tech-stack (Kotlin | CDI | Angular).
• Develop API integrations using RESTful/SOAP web services.
• Significant technical academic course work or equivalent work experience
• Excellent communication and interpersonal skills.
• Knowledge on cloud infrastructure is a plus.

About Company

Helical Insight an open source Business Intelligence tool from Helical IT Solutions Pvt. Ltd, based out of Hyderabad, is looking for a product engineer having strong knowledge on Java. Helical Insight has more than 50+ clients from various sectors. It has been awarded the most promising company in the Business Intelligence space. We are looking for rockstar developers to join our product team.

Job Brief

We are looking for some good candidates with the below-mentioned skill set. We are open to really good candidates with a knack to learn & with the right attitude, even if they don't fulfill the entire criterion mentioned below.

Skill set and Qualification required

Mandatory Experience/knowledge with

• Java , J2EE, Junit
• Servlets , JSP
• SQL
• Spring Framework, Hibernate
• Data Structure, Design Patterns, Multi-threading
• JSON
• Apache Tomcat Web Server
• Problem Solving and Algorithms.

Nice to have

• Knowledge in Business Intelligence and Data Warehousing Knowledge, Database knowledge, Machine Learning.

Work Experience: 2-4 Years

Education: BE/ BTech/ MTech/ MS in Computer Science, or equivalent preferred.

• Proven hands-on Software Development experience
• Proven working experience in Java development
• Hands on experience in designing and developing applications using Java EE platforms
• Object Oriented analysis and design using common design patterns.

• Involved in entire SDLC lifecycle including analysis, development, fixing and monitoring of issues on the assigned product lines.
• Meets and exceeds standards for the quality and timeliness of the work products.
• Implements, unit tests, debugs and leads integrations of complex code.
• Identify opportunities for further enhancements and refinements to best practices, standards and processes.
• Ensure robust, securely accessible, highly available and highly scalable product that meets or exceeds customer and end-user expectations

Experience

Technical Duties & Responsibilities

3 – 6 Years

With 2-4 years of experience in Scalable Architecture development. We are looking for Independent Contributors, who have good understanding of Microservices based architecture, and a comprehensive awareness of various architectures & their suitability as per product requirements: -

• Can solve problems independently, be responsible for the requirement analysis and design implementation of important business modules, and be familiar with the online deployment environment, able to independently analyse and quickly troubleshoot online faults.

• Familiar with JAVA programming principles, understand their advanced features and class libraries, network and server programming, multi-threaded programming, common open source products
• Experience in SOA EIP using Apache Camel Spring Integration

• High quality coding ability, reusability, low coupling, scalability, high performance, maintainability, high security

• Have the architectural design capabilities of modules and subsystems, master common architectural design methods and patterns

• Understand SOA, event-driven, distributed system principles, large-scale network application structure, message middleware, caching, load balancing, clustering technology, data synchronization, NoSQL

• Have the project experience of RabbitMQ or Kafka

• If the candidate has air fare industry experience, might be priority