Java Developer

Job Summary

We are seeking an experienced Java Drools Developer to design, develop, and maintain rule-based applications using Drools. The ideal candidate will have strong backend development skills and hands-on experience with business rule management systems in enterprise environments.

Key Responsibilities

• Design, develop, and maintain business rules using Drools (BRMS)
• Create and manage Drools Rule Files (DRL), decision tables, and rule flows
• Integrate Drools with Java / Spring Boot applications
• Optimize rule execution, performance, and scalability
• Develop and consume RESTful APIs
• Collaborate with business analysts to translate requirements into rules
• Participate in code reviews and ensure best practices
• Support testing, debugging, and production issues

Required Skills

• Strong hands-on experience in Java
• Solid experience with Drools Rule Engine / BRMS
• Experience with Spring / Spring Boot and microservices architecture
• Knowledge of REST APIs and backend integrations
• Understanding of rule lifecycle management and versioning
• Good problem-solving and analytical skills

Job Role 

·  Position Title: Expert Java Engineer

·  Experience Range: 9 to 12 yrs 

·  Location: Pune 

Notice Period : Immediate Joiner

Must have Requirements

● 9+ years’ of experience working as a software developer.

● Strong proficiency in Java and Spring Boot.

● Strong experience in building applications that interact with relational databases using SQL.

● Some experience of Enterprise Java (J2EE / JavaEE / Spring) application architectures.

● History of delivering high-cadence modern applications with applied Agile methodologies, test-first development approaches, adopting CI/CD pipelines and using Git version control.

Backend – Software Development Engineer II

Experience: 4–7 years

Location: Bangalore

Work Mode - Hybrid

About Wekan Enterprise Solutions

Wekan Enterprise Solutions is a leading Technology Consulting company and a strategic investment partner of MongoDB. We help companies drive innovation in the cloud by adopting modern technology solutions that help them achieve their performance and availability requirements. With strong capabilities around Mobile, IOT and Cloud environments, we have an extensive track record helping Fortune 500 companies modernize their most critical legacy and on-premise applications, migrating them to the cloud and leveraging the most cutting-edge technologies.

Job Description

We are looking for passionate software engineers eager to be a part of our growth journey. The right candidate needs to be interested in working in high-paced and challenging environments. Interested in constantly upskilling, learning new technologies and expanding their domain knowledge to new industries. This candidate needs to be a team player and should be looking to help build a culture of excellence. Do you have what it takes?

You will be working on complex data migrations, modernizing legacy applications and building new applications on the cloud for large enterprise and/or growth stage startups. You will have the opportunity to contribute directly into mission critical projects directly interacting with business stakeholders, customer’s technical teams and MongoDB solutions Architects

What you will do

• Own backend features and migration workstreams end to end, from understanding the existing codebase and data model to delivering production-ready implementations.
• Build and enhance Java/Spring Boot services used in modernization, migration, and cloud transformation projects.
• Design and implement backend flows that are safe under retries and partial failures, with clear thinking around validation, transaction boundaries, idempotency, and downstream side effects.
• Work across application, database, and deployment layers to improve reliability, maintainability, and operational visibility.
• Model data based on access patterns and business workflows, with sound choices around schema design, indexing, and query performance.
• Investigate production issues using logs, request traces, database state, and service behavior; identify root causes and implement durable fixes.
• Collaborate with internal teams, customer engineering teams, architects, and stakeholders to deliver high-quality solutions on mission-critical projects.
• Write clean, modular, testable code and participate actively in sprint ceremonies, code reviews, design discussions, and release activities.

What we’re looking for

• 4–7 years of backend engineering experience, with strong hands-on delivery in Java-based systems.
• Solid experience with Java, Spring Boot, and microservice-style backend development.
• Demonstrated ownership of at least one meaningful backend service or feature area in production.
• Strong understanding of backend engineering fundamentals, including service reliability, data consistency, failure handling, and production-grade design considerations.
• Strong database fundamentals, including schema design, query writing, indexing, and performance reasoning.
• Strong depth in MongoDB or a relational database such as Oracle, with working comfort across both styles being a plus.
• Ability to investigate and resolve real production issues across services and databases, including consistency, performance, and reliability problems.
• Hands-on experience with testing frameworks such as JUnit and Mockito.
• Proficiency with Git, including branching, code review workflows, and conflict resolution.
• Strong communication skills and the ability to collaborate effectively with engineers, stakeholders, and customers.

Preferred qualifications

• Experience working on legacy modernization, data/service migrations, or decomposition of existing systems into cleaner service boundaries.
• Exposure to both MongoDB and relational databases, including query tuning, indexing, and production troubleshooting.
• Familiarity with Oracle PL/SQL or migration of logic from database-heavy systems into service-layer Java code.
• Exposure to CI/CD deployment and cloud environments like AWS, Azure, or GCP.

Required Skills:

• 2+ year of experience in Development in JAVA technology.
• Strong Java Basics
• SpringBoot or Spring MVC
• Hands on experience on Relationl 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.

Key Responsibilities:

• Lead and manage a team of Java developers, providing guidance and support
• Oversee the entire software development lifecycle, from requirements gathering to deployment
• Design, develop, and implement Java-based solutions that meet project requirements
• Collaborate with cross-functional teams to ensure project milestones are achieved
• Conduct code reviews, provide technical guidance, and ensure code quality and best practices

Requirements:

• Minimum 4 years of experience in Java development
• Strong knowledge of Java frameworks and technologies (Spring, Hibernate, etc.)
• Experience in leading and mentoring a team of developers
• Excellent problem-solving and analytical skills
• Good understanding of software development methodologies and processes

• Having around 8+ years of Experience in IT industry in Software Development.
• Sound knowledge in Core Java
• Having work experience in SDN/NFV, Orchestration
• Having work experience in Open source and Open Flow Controller(SDN).
• Experience in Aglie methodology.
• Good Knowledge on MySQL ,Postgresql or any Timeseries DB,Kafka, Zookeeper
• Good Knowledge on ONOS, ODL (OpenDaylight) OpenKilda,Mininet.
• Having work experience in MVT/MVC architecture.
• Having good knowledge networks, devices, service modeling and automation in systems.
• Having work experience on API & JSON implémentation.
• Knowledge in OpenStack,Ansible, Shellscript, Chef, Puppet,
• Good Understanding of Software Development (i.e. SDLC)
• Good team player enthusiastic and quick learner
• Good interpersonal skill, commitment, result oriented with a quest and learn new technologies and understanding challenging tasks
• Knowledge in AWS, AZURE Cloud

Key Responsibilities 

Minimum Qualification 

Experience: 2 - 5 years

Talents from Product/eComm/Internet firms Only

Key Skills: Spring boot, RESTful web services, JSON, Servlet, JSP, MySQL, MongoDB, Kafka, AWS Solr, Design Patterns, Java, Distributed systems, AWS

Looking for team members passionate about building platforms for next billion users and re-imagine the e-commerce for mobile-first users. You will be building solutions for personalization, logistics, search & discovery, payments, fraud prevention, and scalability that works and solve problems elegantly

Responsibilities:

• Develop server-side components, REST APIs

• Assume ownership for existing and new modules including design, development, and unit testing for enhancements of existing modules and development of new modules.

• Analyse problems logically and exercise sound judgment in defining, evaluating, and solving difficult technical and operational problems where solutions may be of a precedent-establishing nature.

• Lead the design and architectural improvements

• Participate and collaborate with team members in design discussions, determines areas of complexity, potential risks to successful implementation, suggest enhancements to architecture, implement POCs, and enhance application.

• Reduce technical debt with quality coding

 
Requirements:

• A solid grounding in Computer Science fundamentals (based on a BS or MS in CS or related field) from IITs and Premier Engineering College.

• Excellent Object Orientation, coupled with excellent problem solving and debugging skills.

• Highly skilled at Java and related technologies, including Java Frameworks like Spring-boot or Drop wizard, RESTful web services, JSON, Servlet, JSP, MySQL, MongoDB, Kafka, AWS Solr.

• Must have hands-on experience in building scalable and secure back end systems.

• Have hands-on experience with systems that are asynchronous, RESTful and demand concurrency

• Good to have knowledge of best software engineering practices for all stages of the software development life cycle, including coding standards, code reviews, testing, deployment.

• Experience level: 2-5 years of software development experience in Java with web architecture and scalable design