Java Developer

🚀 We’re Hiring: Senior Software Engineer – Backend | Remote | Full-time

Are you a backend engineering expert who thrives in high-growth startup environments?

Do you enjoy solving complex challenges with the latest technologies like Java 18+, Spring Boot 3+, and scalable microservices?

We’re looking for a Senior Software Engineer – Backend to help us build a world-class data science platform that powers cutting-edge AI solutions.

What You’ll Do:

🔹 Build and optimize scalable, secure backend systems

🔹 Collaborate with product owners & architects to shape business solutions

🔹 Deliver high-quality, production-ready code with best practices (unit testing, CI/CD, automation)

🔹 Work with modern tools like Kubernetes, Docker, NodeJS, React

🔹 Contribute to a high-performance engineering culture and drive innovation

What We’re Looking For:

✔️ 6+ years of experience with Java/Python, Spring Boot, REST APIs, microservices

✔️ Strong CS fundamentals, algorithms, and system design skills

✔️ Experience in secure web applications & scalable backend architectures

✔️ Knowledge of cloud (AWS/GCP/Azure), GitHub Actions, and Unix scripting

✔️ Startup mindset – fast learner, problem solver, impact-driven

🌍 Remote | High-growth environment | Global impact

Job Description:

As per our conversation, please find below the job description for your review. 

·       Strong written/verbal communication skills

·       Minimum 5-14 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Forkjoin pool and other threading concepts)

·       Good knowledge of the JVM with an understanding of performance and memory optimization.

·       Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).

·       Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.

·       Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.

·       Expert level understanding of Object-Oriented Concepts and Data Structures

·       Good experience in Database (Sybase, Oracle, or SQL Server) like indexing (clustered, non clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.

·       While you may already know about Wissen and the company history, here is a quick rundown for you.

• Strong in data structure and algorithms
• Experience in Java, Express, API Design & DOM
• Understanding of component based design or other design patterns
• Experience with unit testing, integration testing & continuous integration
• RDBMS and NoSQL databases preferably PostgreSQL, MongoDB
• Good to have passion for investing

• Attractive compensation package - competitive salary, flexible bonus scheme.
• We are always looking for ways to promote and inspire innovation.
• Individual career path - management and technical career growth, enhanced by learning and development program, regular performance assessment, teams of multi-national IT professionals.
• Healthy work environment - company-sponsored medical program, food, and beverage program, open communication.
• Friendly policies to support Work-life balance, team building, and celebrations.

• Must worked on Spring Boot as an individual contributor.
• Develop a distributed and scalable solution for high-performance financial solutions
• Design, code, test, debug, and document programs as well as support activities for the corporate systems architecture
• Develop tools for performance tracking, monitoring, and reporting on the suite of server-side applications
• Perform and manage stages of the SLDC and participate in the systems review with Project Lead/Manager
• Should have knowledge on Cloud applications preferably on AWS
• Devops with Jenkins, Shellscripting
• Must have experience / knowledge in Cluster Management Frameworks , Spark, Kafka,
• Elastic Search, Docker and database, build-and-test (preferred).
• Demonstrate skills in problem-solving and decision-making
• Experience with Test Driven Development using TestNG/Junit testing framework

• Minimum of 3+ years of experience with server-side core java development
• Hand-on experience in Micro Services with Spring Boot and use of tools like Sonar Qube, Jenkins, AWS.
• Test methodologies and testing tools e.g. JUnit.
• Shell scripting to handle basic scripting
• Able to work independently and produce high-quality solutions.
• Excellent team player and strong interpersonal skills.
• Participating in code reviews
• Knowledge in cloud and DevOps will be plus

• Compile and analyze data, processes, and codes to troubleshoot problems and identify areas for improvement.
• Collaborating with the front-end developers and other team members to establish objectives and design more functional, cohesive codes to enhance the user experience.
• Developing ideas for new programs, products, or features by monitoring industry developments and trends.
• Recording data and reporting it to proper parties, such as clients or leadership.
• Participating in continuing education and training to remain current on best practices, learn new programming languages, and better assist other team members.
• Taking lead on projects, as needed.