
Java Backend Developer (AVP Role)
at one of the world's leading multinational investment bank
2. Data structure (HashMap, treemap, arraylist, linklist),
3. Streaming concepts (partitioning), Junit
4. Exception handling and workflow, Test coverage (why its important, how it gets handled at
java and spring layer, morckito library if the candidate knows that would be great),
5. OOPS concepts (inheritance),
6. Threading (mutex, threadpool, threading implementation, singleton factory, builder pattern,
abstract)
7. Real world problems (atleast 1 to be asked in IAAS interview) (movie ticket booking, parking
booking), To be asked to only selected candidates: Puzzle (probability/)
8. Memory management: Garbage Collection (GC), Heap dump, Thread dump, apache, google
library.
9. Spring frameworks and database. Data lakes, star lakes, schemas, indexing, partitioning,
optimize query, hibernate.
10. Data warehouse vs nosql vs time series database (KDB, DB2), data storage patterns.
11. Types of transaction control. Column level.
12. Query formation, grouping, nested queries, joints (inner joints, outer joints)
13. If candidate has spring exp: Architecture and various layers of Spring, coupling concepts,
dependency injections, inheritance, Bean level, JMS connection pooling concepts, Lambda,
Annotation vs XML, Kafka, Hibernates.
14. Good to have AI/ML inclination.
Bifurcation of Must have and good to have skills:
Must have skills Good to have skills
Core java (60%), spring (15%), and databases
(15%).
Mockito library
Data structure (HashMap, tree map, array list,
link list)
Threadpool
Streaming concepts (partitioning) Memory management
Exception handling Lambda, Annotation vs XML, Kafka, Hibernates
OOPS GCP or any cloud technology
Threading (singleton factory, builder pattern) AI/ML inclination
Real world problems (movie ticket booking,
parking booking)
Spring frameworks and database (indexing,
partitioning, layers of Spring, JMS connection)
Data warehouse vs NoSQL vs time series
database
Junit

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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.
Hello Candidate,
Greetings from Suventure!
PLease find the Job description below.
Job Title: Senior Python Developer (with or without Rust API experience)
Location: Bangalore, India
Company: Suventure Services Pvt. Ltd.
Work Mode: Work From Office (WFO)
Experience: 5+ Years
About Suventure Services Pvt. Ltd.
Suventure is a technology-driven organization delivering end-to-end solutions across Product Development, Cloud, AI, Analytics, and Mobility. We work with global clients to build innovative, scalable, and secure applications that power digital transformation and business growth.
Job Summary
We are seeking a highly skilled and motivated Python Developer with over 5 years of hands-on experience in backend development, API design, and scalable application architecture. Candidates with exposure to Rust API development will have an added advantage, though it is not mandatory. You’ll collaborate closely with cross-functional teams to deliver high-quality, performant, and maintainable code.
Key Responsibilities
- Design, develop, and maintain scalable backend applications using Python (Flask / FastAPI / Django).
- Develop RESTful or GraphQL APIs and ensure seamless data integration between systems.
- Work on microservices architecture and implement clean, modular, and testable code.
- Optimize application performance, ensuring high availability and responsiveness.
- Collaborate with DevOps, frontend, and product teams for feature development and release cycles.
- Participate in code reviews, troubleshooting, debugging, and system enhancements.
- (Optional) Integrate and maintain APIs written in Rust or other high-performance languages.
- Write automated unit tests and follow best practices for CI/CD and version control (Git).
Required Skills & Experience
- Minimum 5 years of professional experience in Python development.
- Strong understanding of OOPs, design patterns, Data structures and software engineering principles.
- Hands-on experience with frameworks such as Flask, Django, or FastAPI.
- Experience with RESTful APIs, microservices, and asynchronous programming.
- Good understanding of SQL/NoSQL databases (MySQL, PostgreSQL, MongoDB, Redis).
- Knowledge of Docker, Kubernetes, or AWS Cloud Services is a plus.
- Familiarity with Rust and its API ecosystem is an added advantage.
- Excellent problem-solving skills and ability to work in a fast-paced environment.
Oister Global (www.oisterglobal.com) is India’s premier Alternative Assets Manager. We combine robust diligence, deep domain expertise, and an extensive network to create high quality private market opportunities for our investors.
We are seeking a Senior Backend Developer who will be pivotal in architecting and developing scalable, reliable backend systems from scratch. You will work closely with product managers, designers, and other engineers to build new products, design backend architectures, and ensure high performance and responsiveness of the systems. This role requires strong backend fundamentals, cloud experience, a deep understanding of databases, and a passion for system design and architecture.
Key Responsibilities:
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● System Design: Take ownership of system design and architecture decisions for new modules, ensuring scalability, reliability, and security. ● API Development: Build efficient and reusable APIs and backend services using Node.js.
● Database Management: Design data models, optimize queries, and manage MongoDB clusters efficiently.
● Cloud Management: Deploy, maintain, and optimize services on AWS, ensuring high availability and performance.
● Best Practices: Maintain coding standards, ensure code reviews, and champion best practices in security, testing, and maintainability.
● Collaboration: Work closely with frontend developers, product managers, QA, and other cross-functional teams to define, design, and ship new features.
● Performance Optimization: Monitor system performance and ensure system uptime and responsiveness.
● Mentorship: Provide guidance and mentorship to junior developers as required.
● Documentation: Maintain thorough documentation of systems, processes, and best practices. Must-Have
Qualifications:
● Education: Bachelor’s degree in computer science, Software Engineering, or a related technical field.
● Experience: 4–5+ years of hands-on backend development experience.
● Expertise in: Node.js (Express.js, Nest.js or similar frameworks) MongoDB (including indexing, replication, sharding concepts) AWS Services (EC2, S3, Lambda, RDS, API Gateway, CloudWatch, IAM, etc.) Proficient in: System design principles Microservices architecture Event-driven architecture Strong understanding of: RESTful APIs.Authentication and authorization best practices (OAuth, JWT) Experience with: CI/CD pipelines Docker and containerization principles Hands-on experience in: Building scalable, distributed, and fault-tolerant systems Good knowledge of : Logging, monitoring, and debugging distributed applications
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- Troubleshoot and debug integration issues to ensure seamless data flow and automation.
- Collaborate with stakeholders to gather requirements and implement best practices for integration.
- Ensure compliance with security standards and industry best practices.
- Required Skills & Experience:5+ years of experience in MuleSoft development, including Mule ESB, Anypoint Platform, API Management.
- Hands-on experience with MuleSoft RPA & IDP for automating business processes.
- Strong experience in designing RESTful APIs, SOAP services, and DataWeave transformations.
- Expertise in integrating cloud-based and on-premise applications using MuleSoft Connectors.
- Knowledge of error handling, logging, security, and performance optimization in MuleSoft.
- Experience in CI/CD deployment processes for MuleSoft applications.
- Strong problem-solving skills and ability to work independently.
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- Prior experience in banking, healthcare, or financial domains is a bonus.
- Application Process:Immediate joiners preferred. Candidates currently serving their notice period and available to join before month-end will be given priority.
- Strong experience in core Java programming.
- Good experience in Spring and Hibernate
- Proficiency with JSF/third party JSF components framework
- Must have at least 2+ years exp. of Web application development with exp. in using any MVC framework
- Knowledge of OOP concepts, industry best practices, and design
- Professional, precise communication skills
- Work experience writing Unit tests
- Good understanding of web technology and enterprise-level applications
- Work experience in applying the best practices of Web Application development
- Working experience in an Agile team especially with SCRUM
- Good to have experience in JavaScript frameworks
- Good to have experience in JSON, HTML5, CSS and XML
Following Skills will be an added advantage
- Working experience of Prime-Faces
- Knowledge of Spring Web Flow
Behavioral Skill
- Should be self-motivated and a quick learner with a problem-solving mind-set
- Attention to detail and follow-through to achieve good quality and meet deadlines.
- Ability to work effectively in a team as well as in an individual environment
- Should have excellent written and verbal communication skills
Job Roles and Responsibilities – Java Developer
Primary Role and Responsibility: .
· Bachelor’s degree in computers / Electronics/Any Graduate
· 3-6 years of relevant experience.
· Contribute to all phases of the development lifecycle
· 3 to 6 years of experience.
· Write well designed, testable, efficient code
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· Prepare and produce releases of software components
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· Work from Office
Expertise You ll Bring
· Development skills in Language and Framework
· Strong coding skills in Core Java 8.0
· Expertise in J2EE
· Spring Boot
· Spring Data JPA
· Hibernate
· Expertise in REST API development and deployment using a microservices paradigm
· A good understanding of RDBMS concepts
· Knowledge of deployment and build tools
· A good understanding of Terraform scripts (needing only minor changes / enhancements)
• Analyze user and system requirements
• Design flowcharts to illustrate software solutions
• Write efficient code based on feature specifications
• Develop user interfaces
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• Design database architecture
• Test and debug Java applications
• Validate software functionality and security
Requirements:
• Work experience on Java, Spring, Strurts , Hibernate, Microservice etc.
• Experience building Java EE applications.
• God knowledge of Database tool, Frontend Skills.
• Familiarity with Object-Oriented Design (OOD)
• Good knowledge of popular Java frameworks like JSF and Spring MVC
• Experience with test-driven development
• Problem-solving skills
Looking for someone who can join in a month's notice
Role- Java Developer
Location- Bangalore, Mumbai
Experience- 5-8 yrs
Job Description
- 5-7 Yrs of experience building enterprise level applications using Java Restful API’s, Spring(Core, aspect ,boot & batch) and related frame works.
- Development experience in core java
- Expertise in multi-tiered Java EE design and programming , solid understanding and multi-tiered web based applications
- Solid data structures and algorithm experience
- Strong expertise in all the following Java-based technologies
- Spring
- Hibernate Framework (integration layer and Web MVC)
Who are able to work individual as well as Team work with Good Speed and accurecy.










