Java Engineer

Java Developer – Job Description

Wissen Technology is now hiring for a Java Developer - Bangalore with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the 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 a highly motivated and expert team which has made a mark as a high-end technical consulting. Required Skills: • Exp. - 5 to 12 years. • Experience in Core Java and Spring Boot. • Extensive experience in developing enterprise-scale applications and systems. 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. • Good knowledge of multi-threading and high-performance server-side development. • Basic working knowledge of Unix/Linux. • Excellent problem solving and coding skills. • Strong interpersonal, communication and analytical skills. • Should have the ability to express their design ideas and thoughts. About Wissen Technology: Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with best-in-class infrastructure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals. Wissen Technology provides exceptional value in mission critical projects for its clients, through thought leadership, ownership, and assured on-time deliveries that are always ‘first time right’. Our team consists of 1200+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and with rich work experience in some of the biggest companies in the world. Wissen Technology offers an array of services including Application Development, Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation. We have been certified as a Great Place to Work® for two consecutive years (2020-2022) and voted as the Top 20 AI/ML vendor by CIO Insider. 

Job Summary:

We are looking for a skilled and motivated Backend Engineer with 2 to 4 years of professional experience to join our dynamic engineering team. You will play a key role in designing, building, and maintaining the backend systems that power our products. You’ll work closely with cross-functional teams to deliver scalable, secure, and high-performance solutions that align with business and user needs.

This role is ideal for engineers ready to take ownership of systems, contribute to architectural decisions, and solve complex backend challenges.

Website: https://www.thealteroffice.com/about

Key Responsibilities:

• Design, build, and maintain robust backend systems and APIs that are scalable and maintainable.
• Collaborate with product, frontend, and DevOps teams to deliver seamless, end-to-end solutions.
• Model and manage data using SQL (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., MongoDB, Redis), incorporating caching where needed.
• Implement and manage authentication, authorization, and data security practices.
• Write clean, well-documented, and well-tested code following best practices.
• Work with cloud platforms (AWS, GCP, or Azure) to deploy, monitor, and scale services effectively.
• Use tools like Docker (and optionally Kubernetes) for containerization and orchestration of backend services.
• Maintain and improve CI/CD pipelines for faster and safer deployments.
• Monitor and debug production issues, using observability tools (e.g., Prometheus, Grafana, ELK) for root cause analysis.
• Participate in code reviews, contribute to improving development standards, and provide support to less experienced engineers.
• Work with event-driven or microservices-based architecture, and optionally use technologies like GraphQL, WebSockets, or message brokers such as Kafka or RabbitMQ when suitable for the solution.

Requirements:

• 2 to 4 years of professional experience as a Backend Engineer or similar role.
• Proficiency in at least one backend programming language (e.g., Python, Java, Go, Ruby, etc.).
• Strong understanding of RESTful API design, asynchronous programming, and scalable architecture patterns.
• Solid experience with both relational and NoSQL databases, including designing and optimizing data models.
• Familiarity with Docker, Git, and modern CI/CD workflows.
• Hands-on experience with cloud infrastructure and deployment processes (AWS, GCP, or Azure).
• Exposure to monitoring, logging, and performance profiling practices in production environments.
• A good understanding of security best practices in backend systems.
• Strong problem-solving, debugging, and communication skills.
• Comfortable working in a fast-paced, agile environment with evolving priorities.

Required Skills:

• 3+ year of experience in Development in JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka)
• Microservices
• Any Caching Mechanism
• Good at problem solving

Good to Have Skills:

• 4+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.

• Sound knowledge of Core Java, JSP, Servlets & MVC, Spring
• Good knowledge of Java Script, Ajax
• Good knowledge of My SQL database server
• Experience in working with IDE like Eclipse or Netbeans
• Knowledge of Spring would be an advantage
• Great problem-solving attitude
• Strong OOP & OOAD fundamentals
• Knowledge of Java EE Design pattern
• Technical hands on Spring, Spring Security, Hibernate, JPA, Struts, OO JS, XML, Webservices (Restful, JAX-WS).
• Nice to have knowledge of Liferay, Amazon EC2, Google App Engine, Restful services, jQuery, YUI, EstJS (Sencha), frameworks.

• Understand the BRS / SRS document
• Coordinate with Team lead/DBA to understand the System design and Database design
• Development and Unit Testing
• Bug fixing and Change Request implementation

Required Education:

B.Tech./ BE - Computer, IT, Electronics only

Required Skills:

• 3+ year of experience in Development in JAVA technology and springboot
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relational Databases (SQL query or Hibernate) + Mongo (JSON parsing)
• Proficient in REST API development
• Messaging Queue (RabitMQ or Kafka
• Any Caching Mechanism
• Good at problem solving

Good to Have Skills:

• 4+ years of experience in using Java/J2EE tech stacks
• Good understanding of data structures and algorithms.
• Excellent analytical and problem solving skills.
• Ability to work in a fast paced internet start-up environment.
• Experience in technical mentorship/coaching is highly desirable.
• Understanding of AI/ML algorithms is a plus.