Java developer

Wissen Technology is now hiring for Java Developer with hands on experience in Core Java, multithreading, algorithms, and data structure.

We are solving complex technical problems in the financial industry and need talented software engineers to join our mission and be a part of a global software development team.

A brilliant opportunity to become a part of highly motivated and expert team which has made a mark as a high-end technical consulting.

Required Skills:

Experience - 3+.

Experience in Core Java 5.0 and above, CXF, Spring.

Extensive experience in developing enterprise-scale n-tier applications for financial domain. Should possess good architectural knowledge and be aware of enterprise application design patterns.

Should have the ability to analyze, design, develop and test complex, low-latency client-facing applications.

Good development experience with RDBMS, preferably Sybase database.

Good knowledge of multi-threading and high-volume server-side development.

Experience in sales and trading platforms in investment banking/capital markets.

Basic working knowledge of Unix/Linux.

Excellent problem solving and coding skills in Java.

Strong interpersonal, communication and analytical skills.

Should have the ability to express their design ideas and thoughts.

We are seeking a skilled and experienced Senior Backend Engineer proficient in Java to join our dynamic team. The ideal candidate will have 4-7 years of hands-on experience in Java development, particularly in building robust backend systems and microservices architecture. As a Senior Backend Engineer, you will collaborate with cross-functional teams to design, develop, and deploy scalable and efficient backend solutions to support our products and services.

Responsibilities:

1. Design, develop, and maintain high-performance backend systems and microservices using Java.
2. Collaborate with product managers, frontend engineers, and other stakeholders to understand requirements and translate them into technical specifications.
3. Implement best practices in software development, including code reviews, testing, and documentation.
4. Optimize and refactor existing codebase for improved performance, scalability, and maintainability.
5. Troubleshoot and debug issues in production environments and provide timely resolutions.
6. Stay updated with industry trends and emerging technologies to propose innovative solutions and improvements.
7. Mentor junior engineers and contribute to their professional growth and development.
8. Participate in agile ceremonies such as sprint planning, stand-ups, and retrospectives.

Requirements:

1. Bachelor's degree in Computer Science, Engineering, or a related field.
2. 4-7 years of professional experience in backend development with a focus on Java.
3. Strong proficiency in Java programming language and its ecosystem.
4. Experience with building scalable and distributed systems using microservices architecture.
5. Proficiency in Spring Framework (Spring Boot, Spring MVC, Spring Data, etc.).
6. Solid understanding of relational and NoSQL databases (e.g., MySQL, PostgreSQL, MongoDB).
7. Experience with RESTful API design and implementation.
8. Familiarity with cloud platforms such as AWS, Azure, or Google Cloud Platform.
9. Knowledge of containerization and orchestration tools like Docker and Kubernetes is a plus.
10. Excellent problem-solving skills and attention to detail.
11. Strong communication and collaboration skills.
12. Ability to work independently and in a team-oriented environment.
13. Experience with Agile/Scrum methodologies.

Preferred Qualifications:

1. Master's degree in Computer Science or a related field.
2. Experience with DevOps practices and CI/CD pipelines.
3. Knowledge of reactive programming frameworks like Akka or Vert.x.
4. Familiarity with message broker systems such as Kafka or RabbitMQ.
5. Contributions to open-source projects or active participation in the developer community.

Job Description:
We are looking for a Software Engineer with solid development experience in Java and related frameworks. We are looking for a self-motivated, go-getter, out-of-the-box thinker who is ready to work in a high-energy start-up environment. He/she must demonstrate a high level of ownership, integrity, and creativity.
Required Skills:
• Core Java (Proficient)
• Spring, Spring MVC OR Spring boot
• Hibernate – Good to have
• Oracle/MySQL DB - Hands-on (Intermediate)
• REST API and AWS– Good to have
• Hands-on experience of working on Spring boot based Microservices (Intermediate)
• Good to have knowledge of Microservice DevOps tools (Git, Jenkins, JUnits, deployment, monitoring, tracing)
• Sound understanding of core Java, SOAP Services, REST Services, Spring & maven, having expertized to work on Unix platform
• Should have working knowledge on web servers (e.g. Apache HTTP) and application servers (e.g. Tomcat, WebLogic)
• Should have a working knowledge of any relational database. Preferred will be Oracle and MySQL.
Roles and Responsibilities:
• You will design, develop, modify, debug and/or maintain software code according to functional, non-functional and technical design specifications.
• You will follow software engineering standards, applicable software development
methodology and release processes, to ensure code is maintainable, scalable,
supportable and demo the software products to stakeholders
• You will investigate issues by reviewing/debugging code, providing fixes and workarounds, and reviewing changes for operability to maintain existing software solutions.
• You will work within a team, collaborate and add value through participation in peer code reviews, provide comments and suggestions, work with cross-functional teams to achieve goals.

Why should you join Opcito?
We are a dynamic company that believes in designing transformation solutions for our customers with our ability to unify quality, reliability, and cost-effectiveness at any scale. Our core work culture focuses on adding material value to client products by leveraging best practices in DevOps like continuous integration, continuous delivery, and automation, coupled with disruptive technologies like cloud, containers, serverless computing, and microservice-based architectures.
Here are some of the perks of working with Opcito:
• Outstanding career development and learning opportunities
• Competitive compensation depending on experience and skill
• Friendly team and enjoyable work environment
• Flexible working schedule
• Corporate and social events.

• Augmenting, improving, redesigning, and/or re-implementing Dolat's low-latency/high-throughput production trading environment, which collects data from and disseminates orders to exchanges around the world
• Optimizing this platform by using network and systems programming, as well as other advanced techniques
• Developing systems that provide easy access to historical market data and trading simulations
• Building risk-management and performance-tracking tools
• Shaping the future of Dolat through regular interviewing and infrequent campus recruiting trips
• Implementing domain-optimized data structures
• Learn and internalize the theories behind current trading system
• Participate in the design, architecture and implementation of automated trading systems
• Take ownership of system from design through implementation

Qualification & Experience

As a Senior Software Engineer - I,you'll take on complex problems that span multiple components and teams. As SSE - I, you could expect to: 

• Independently own one or more multiple modules, which includes: requirement analysis, design, development, maintenance & support
• Write extensive, efficient code to address complex modules and that handles interaction between multiple components. 
• Rapidly iterate to add new functionalities and solves complex problems with simple and intuitive solutions
• Produce architecture with clean interfaces, that are efficient and scalable
• Participate and contribute to architectural discussions
• Perform design and code reviews
• Perform technical feasibility and trade off studies & guides others to perform these studies
• Solve production issues. Investigate and provide solutions to minimize the business impact due to outage
• Continuously improve performance metrics of modules you own.
• Actively mentor and develop junior developers in all software development practices
• Participate in the hiring process (referrals, interviews, attending recruiting events or writing blogs)
• Onboard and mentors new team members, helps shape the culture of the team
• Collaborate effectively across teams to solve problems, execute and deliver results

Minimum Requirements: 

• A minimum of 4 years of relevant software development experience

We are looking for a Java Developer with experience in building high-performing, scalable, enterprise-grade applications.

You will be part of a talented software team that works on mission-critical applications. Java developer roles and responsibilities include managing Java/Java EE application development while providing expertise in the full software development lifecycle, from concept and design to testing.

Java developer responsibilities include designing, developing and delivering high-volume, low-latency applications for mission-critical systems.

• Contribute in all phases of the development lifecycle
• Write well designed, testable, efficient code
• Ensure designs are in compliance with specifications
• Prepare and produce releases of software components
• Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review

• BS/MS degree in Computer Science, Engineering or a related subject
• 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.
• Profound insight of Java and JEE internals (Classloading, Memory Management, Transaction management etc)
• Excellent knowledge of Relational Databases, SQL and ORM technologies (JPA2, Hibernate)
• Experience in the Spring Framework
• Experience as a Sun Certified Java Developer
• Experience in developing web applications using at least one popular web framework (JSF, Wicket, GWT, Spring MVC)
• Experience with test-driven development