11+ Sonar Jobs in Bangalore (Bengaluru) | Sonar Job openings in Bangalore (Bengaluru)

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.

We are seeking extremely smart programmers who are gung ho about building large scale systems that are going to have a big impact on millions of customers.

Responsibilities:

• Design and develop products by working closely with business team.
• Gain experience with hands on coding and independent ownership of software components.
• Build performant, scalable, enterprise ready back end architectures that can support millions of users in parallel.
• Follow strong engineering best practices and champion their adoption.

Requirements:

• 2+ years’ experience in software product development and delivery.
• Bachelors or Masters degree in engineering from a reputed institute(preferably IITs, NITs, or other top engineering institutes).
• Strong grasp of CS fundamentals, algorithms and excellent problem solving abilities.
• All experience should be from good product development or e-commerce background.
• Must have shown good stability in all your previous associations.
• Have strong backend knowledge and cloud development exposure.
• Expert at Java, Spring boot, Hibernate, REST API development.
• Worked with at least 1 RDBMS (Mysql preferred). NoSql is a plus.
• Have used or are very hands-on with Microservices, Docker, Kubernetes, Gradle/Ant, Kafka, GIT/bitbucket in a very agile work place.
• Writing high quality code which is made better by unit tests and integration tests is how you work.
• Comfortable with exploring proven open source tech stack like Grafana, Kibana, Jira, Prometheus, caches like Redis/Memcached, task queues like celery, to name a few.
• Knowledge of test driven development and AWS tech stack will be a good plus.

About the company:

Company is building the platform to drive global careers for millennials from emerging

economies. Leap work at the exciting intersection of the 2 hottest trends around - edtech & fintech!

And we love that we succeed as a business while powering the dreams of talented students! They create modern financial products and services that help Indian students pursue a global career. From choosing the right university and the best financing option to lining up job interviews and introductions, Leap Finance invests heavily in your success.

Summary :

Leap is building the core engineering team and looking for an Android developer who can

take ownership and deliver independently.

The best candidates will check all OR many of these boxes :

● 3-6 years of experience in an engineering role

● Essential skills required are Java, Springboot, MySQL, PostgreSQL & Kotlin Backend

Technologies.

● Good to have experience in Node.js, Nest.js

● Experience with an early-stage start-up

Why is this a great opportunity for the right candidate :

● Experienced founding team

● Right to win - The founding team knows the business & its secrets inside out. We are

starting with a significant head start and a precise plan of action

● Barriers to entry - This is a specialized play with natural barriers to entry, allowing for

significant value creation for all equity holders

● Backed by marquee global investors

● Exposure to all aspects of company building - exposure to investors, fund-raising,

decision making, building the team & culture

● All of the above perks of joining a high potential company very early, along with a

competitive market salary.

What we need from you

• You will bring very strong consulting skills, are customer focused and know how to navigate through tough project situations
• You are highly motivated, creative in your approach to technical problems and love all things about Data!
• You spend a significant amount of time to keep your technical skills updated and are constantly looking for the next big data challenge
• You will be a key contributor to our growth and our customer’s success
• You will bring both broad and deep knowledge in Efficient Java (JSP, Servlet) Developer and going forward build the ability to architect a solution by mapping a customer business challenges
• You are resourceful and confident under pressure
• Willingness to travel as needed to customer sites

Competencies:

• Relevant experience on using tools like JSP, Servlet for web applications
• MVC frame works - Struts or Spring
• Web services- SOAP and REST WebLogic, Hibernate
• Middleware technologies MQ OSB.
• Web/App Servers: Tomcat or WebLogic or JBoss
• Experience using Angular, Micro Services using Spring, jersey, Swagger
• Good knowledge of Backend and Front-end technologies
• Good knowledge of Core Java, J2EE, Ajax, Spring, Java Script, jQuery, HTML
• Good knowledge of any RDBMS database like SQL Server, Oracle, MySQL & Cluster set-up, performance benchmarking, client-side API evaluation, knowledge of various deployment strategies
• Strong knowledge with Core JAVA concepts – Exception handling, Multi-threading, Collection, String, OOPS etc…
• Advanced understanding of Windows and Linux based operating systems
• Mainly 3-4 months hands on with reverse engineering and old legacy solutions to new modern applications
• Working knowledge using REST, HTTP, TCP, SCTP protocols
• Hands-on with JAVA frameworks such as – Thread Pool Executor, Object Pooling, Logging (Log4j preferred), XML/JSON handling

Education Criteria:

• Preferred BE degree in CS, E&C, E&E
• Proficient being a J2EE Developer (courses or project done) and data analytics skills
• Flexible to work on any projects assigned

Note: Terms & Conditions

• This opportunity will be work from office

• Mandatory skills: Spring boot, Hibernate, Microservice
• Strong Java skills including Java 8 features 
• Good understanding of Microservices-based architecture and the related ecosystem 
• Exposure to MS SQL Server, Sybase etc. and NoSQL databases like MongoDB is also preferred.
• Great OO skills, including strong design patterns knowledge 
• Strong knowledge of software best practices, like Test-Driven Development (TDD) and
• Continuous Integration (CI) 
• Strong Knowledge of Data Structures & Algorithms
• Experience in working with data-driven RESTful APIs using web frameworks like SpringBoot,etc. 
• Should be able to do data modeling
• Good understanding of ORMs like Hibernate, JPA, etc. 
• Strong debugging skills
• Familiarity with architectural/ design patterns
• Advanced knowledge of Agile methodology.