Principal Engineer

JOB DESCRIPTION:

Location: bangalore

Mode of Work : 3 days from Office

DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API

• Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
• Implement and integrate APIs using Spring Framework and Apache CXF.
• Build microservices-based architecture for scalable and distributed systems.
• Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
• Optimize performance through efficient multithreading, memory management, and algorithm design.
• Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
• Work with RDBMS (preferably Sybase) for backend data integration.
• Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
• Work in Unix/Linux environments for deployment and troubleshooting.

Required Skills & Experience:

• 3– 8 years of strong hands-on experience in Core Java, Spring boot, microservices, data structures.
• Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
• Proven experience with Spring, CXF, and REST/SOAP web services.
• Solid understanding of microservices architecture and distributed systems.
• Experience working with Sybase or other relational databases.
• Expertise in multithreading, concurrency, and high-throughput server-side development.
• Exposure to capital markets, sales & trading platforms, or similar financial services applications.
• Good working knowledge of Unix/Linux environments.
• Experience in solution architecture and design documentation is a strong plus.
• Strong problem-solving skills, analytical thinking, and a proactive attitude.
• Excellent communication and interpersonal skills to work effectively with global teams.

Preferred Qualifications:

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
• Previous experience in investment banking, capital markets, or financial technology domains

Company Name – Wissen Technology

Group of companies in India – Wissen Technology & Wissen Infotech

Work Location - Senior Backend Developer – Java (with Python Exposure)- Mumbai

Experience - 4 to 10 years

Kindly revert over mail if you are interested.

Java Developer – Job Description

We are seeking a Senior Backend Developer with strong expertise in Java (Spring Boot) and working knowledge of Python. In this role, Java will be your primary development language, with Python used for scripting, automation, or selected service modules. You’ll be part of a collaborative backend team building scalable and high-performance systems.

Key Responsibilities

• Design and develop robust backend services and APIs primarily using Java (Spring Boot)
• Contribute to Python-based components where needed for automation, scripting, or lightweight services
• Build, integrate, and optimize RESTful APIs and microservices
• Work with relational and NoSQL databases
• Write unit and integration tests (JUnit, PyTest)
• Collaborate closely with DevOps, QA, and product teams
• Participate in architecture reviews and design discussions
• Help maintain code quality, organization, and automation

Required Skills & Qualifications

• 4 to 10 years of hands-on Java development experience
• Strong experience with Spring Boot, JPA/Hibernate, and REST APIs
• At least 1–2 years of hands-on experience with Python (e.g., for scripting, automation, or small services)
• Familiarity with Python frameworks like Flask or FastAPI is a plus
• Experience with SQL/NoSQL databases (e.g., PostgreSQL, MongoDB)
• Good understanding of OOP, design patterns, and software engineering best practices
• Familiarity with Docker, Git, and CI/CD pipelines

• Strong experience in Core Java, Multi-Threading, data structures (List/Map/Set) and unit testing with (Junit, Mockito)
• Strong experience with Spring Framework (Spring MVC, Spring REST, Spring Data), ORM frameworks (JPA, Hibernate) and RDBMS (Oracle/MySQL/Postgres)
• Strong experience in applying Object-Oriented design principles and Design Patterns
• Good knowledge of Multi-Tier architecture, Micro Services architecture and Service Oriented Architecture 
• Exposure to AWS Cloud, NoSQL Database (Mongo, Cassandra), Message Broker (Active
• MQ/RabbitMQ/Apache Kafka) and Big Data Technologies (Hadoop/Hive/Spark)
• Additionally, must possess capability to review code, produce technical specification document
• and knowledge of code quality tools (PMD/FindBugs/Sonar)

Required Skills/Qualifications: 

∙         B.Tech/MCA in Comput

Required Skills/Qualifications: 

Any Backend Technology is acceptable

∙         B.Tech/MCA in Computer Science or equivalent with 1-3 years’ experience with server-side web application development.

∙         Extensive development experience using LAMP or MEAN stack, RESTful web services or Node.js, HTML and CSS.

∙         Good understanding of Data structures and Relational Databases like MySQL or NoSQL Databases like MongoDB.

∙         Experience working with services in AWS such as EC2, RDS, and ELBs and have knowledge of VPCs.

∙         Experience with server side and client side MVC frameworks, Kafka Ansilble,Jenkins.

∙         Exposure to Continuous Integration (CI) and Continuous Deployment (CD), automated testing and agile development methods.

∙         Understanding of Version Management Tools like GitHub.

er Science or equivalent with 1-3 years’ experience with server-side web application development.

∙         Extensive development experience using LAMP or MEAN stack, RESTful web services or Node.js, HTML and CSS.

∙         Good understanding of Data structures and Relational Databases like MySQL or NoSQL Databases like MongoDB.

∙         Experience working with services in AWS such as EC2, RDS, and ELBs and have knowledge of VPCs.

∙         Experience with server side and client side MVC frameworks, Kafka Ansilble,Jenkins.

∙         Exposure to Continuous Integration (CI) and Continuous Deployment (CD), automated testing and agile development methods.

∙         Understanding of Version Management Tools like GitHub.

Position – Software Engineer

Essential Job Functions:

• Develop code for system changes or new modules within company and architecture according to specifications and standards
• Participates and contribute in formal and informal code reviews
• Prepares and executes accurate unit test plans, test data, and test modules and scripts
• Documents code changes and unit test results per Best Practices
• Performs production support and troubleshooting and maintenance (defect resolution)

Required Skills:

• 3-6 years of hands-on experience
• Expert level understanding of all phases of SDLC, preferably with Agile methodology.
• Strong coding experience with Java, J2EE, SQL. Strong experience in java frameworks, especially spring framework.
• Solid experience developing with SQL queries, stored procedures, views and triggers for Oracle databases.
• Understanding of multi-tier architecture, Web based development, and Services Oriented Architecture. Experience coding REST and SOAP services.
• Excellent communication (verbal and written) and interpersonal skills. Able to step into complex situations and take responsibility.
• Solid knowledge working with version control systems like bitbucket and build tools like maven.
• Strong problem solving and conflict resolution skills.

Preferred Skills:

• Able to guide junior developers.
• Ability to learn and master internal frameworks quickly.
• Deep knowledge in writing complex unit tests.
• XML and knowledge of generating Java data binding code from XSDs
• Knowledge of Tomcat, WebSphere, WebLogic and IBM MQ
• Experience with Agile methodology.

About CapitalCloud, A Bottomline Company:

Bottomline Technologies provides collaborative payment, invoice and document automation solutions to corporations, financial institutions and banks around the world. The company's solutions are used to streamline, automate, and manage processes involving payments, invoicing, global cash management, supply chain finance and transactional documents. Organizations trust these solutions to meet their needs for cost reduction, competitive differentiation, and optimization of working capital.

Serving industries such as financial services, insurance, health care, technology, communications, education, media, manufacturing, and government, Bottomline provides products and services to approximately 80 of the Fortune 100 companies and 70 of the FTSE (Financial Times) 100 companies.

Bottomline is a participating employer in the Employment Verification (E-Verify) program EOE/AA/M/F/V/D/E-Verify Employer

Bottomline Technologies is an Equal Employment Opportunity and Affirmative Action Employer.

1. Should be very strong Scala development(Coding)
2. With Any combination of Java/Python/Spark/Bigdata
3. 3+ years experience in Core Java/Scala with good understanding of multithreading
4. The candidate must be good with Computer Science fundamentals
5. Exposure to python/perl and Unix / K-Shell scripting
6. Code management tools such as Git/Perforce.
7. Experience with large batch-oriented systems 
8. DB2/Sybase or any RDBMS
9. Prior experience with financial products, particularly OTC Derivatives
10. Exposure to counterparty risk, margining, collateral or confirmation systems

Who we are

ixigo is an AI-based travel app that helps millions of users plan and book their trips every day. Launched in 2007, ixigo is proud to have built numerous industry-first AI-innovations over the last decade. With pre-emptive help from ixigo at every touch-point of their journey, 150 million Indians are now making smarter travel decisions every year. ixigo uses Artificial Intelligence for deal discovery, personalized recommendations, dynamic marketing, airfare predictions, train delay information, PNR confirmation status, infrastructure cost optimization, business intelligence and providing fully-automated customer service over chat and voice. This makes ixigo a lean, tech-intensive and capital-efficient travel business, serving millions of travelers with a team size of under 200. Founded in 2007 by Aloke Bajpai & Rajnish Kumar, ixigo’s investors include Sequoia Capital India, Fosun RZ Capital, SAIF Partners, MakeMyTrip & Micromax.

Role & Responsibility

As a Backend Developer, You will be involved in all aspects of development playing a critical role in the design, planning, development, and deployment and help develop best practices for future development. You will be working closely with Tech, Design and Quality team to build and launch the product.

• Code, develop, design and architect features related to the existing application. We expect you to own modules end to end and take pride in the work products you ship
• Design, implement and maintain highly scalable, multi-tier, distributed server software applications
• Deliver across the entire app life cycle, design, build, deploy, test, release to app stores and support
• Working directly with developers and product managers to conceptualize, build, test and release products
• Take responsibility for performance and stability for all server functions
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

Skills & Qualifications:

• At least an undergraduate degree in Computer Science, Engineering, preferably from IITs/Top RECs
• 2-5 years of experience at cutting edge organizations or startups
• Extensive experience in a Java server-side software design and development
• Proficiency in the implementation of algorithms and the use of advanced data structures to solve problems in computing.
• Experience with e-business/e-commerce applications and business environment is a must
• Any experience with internet companies or the travel industry will be a plus

Must have

• Good understanding of Java/J2EE and design patterns
• Strong knowledge of data structures and designing for performance, scalability and availability Knowledge in MongoDB and Web services
• Extensive use of Instruments and Shark to detect memory leaks and for performance optimization
• Good grasp of algorithms, memory management, and multithreaded programming
• Good to have - Python, NodeJS, Mysql, Redis, ElasticSearchGreat people skills!
• Able to fit in well within an informal startup environment and to provide hands-on management
• The high energy level and untiring commitment to drive oneself & the team towards goals

Compensation: Commensurate to skills & experience; comparable to the best in the industry.

Culture: ixigo is proud to have built an entrepreneurial culture that has become a folk-lore in the startup ecosystem. One in every four ixigems has gone on to build successful startups and companies. Our cultural values of integrity, empathy, ingenuity, awesomeness, and resilience have stood the tests of time and we’ve built a fun, flexible and creative work environment that is driven by people with a high degree of ownership. You will get to work with some of the smartest folks in the Indian startup ecosystem, and solve some of the toughest problems for the next billion users by using bleeding-edge technologies. Oh, and we have an awesome “play” area, great chai/coffee, free lunches (yes, they exist!) and a workspace you will fall in love with.