Senior / Lead - Java Developer - Bengaluru

Java Developer – Job Description  

Wissen Technology is now hiring 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 consultancy.  

Required Skills:  

• Exp. - 2 to 7 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 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. 

• Experience in Core Java, CXF, Spring.
• Experience in spring boot, microservices.
• Extensive experience in developing enterprise-scale n-tier applications for the financial domain. 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, preferably Sybase database
• Good knowledge of multi-threading and high volume server side development
• Experience in sales and trading platforms in investment banking/capital markets
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should have the ability to express their design ideas and thoughts.

Role - Senior Backend Developer

About

It is an AI powered GTM intelligence platform for B2B companies. We aims to become the

Master OS on top of the company's entire martech stack. We are integrating multiple sales and

marketing products into an all-in-one platform, adding smart workflows and machine learning/LLM

based intelligence applications to increase qualified pipeline and funnel conversions. It is growing

fast, has an experienced founding team and is funded by top tier investors.

About the Role

We are seeking a Senior Java Microservices Developer who is a highly skilled professional responsible for designing, developing, and maintaining microservices-based applications using Java technologies.

The job description for a Senior Java Microservices Developer typically includes the following responsibilities and requirements:

Responsibilities:

Design and develop microservices-based applications using Java technologies such as Spring

Boot, Spring Cloud, and Hibernate.

Collaborate with cross-functional teams including product managers, architects, and DevOps to

develop and implement scalable and reliable microservices.

Develop and maintain high-quality code by adhering to coding standards, best practices, and

software development methodologies.

Participate in code reviews, bug fixing, and troubleshooting to ensure high-quality code and

maintain system stability.

Work with stakeholders to understand business requirements and translate them into technical

designs.

Conduct performance analysis and optimization of microservices to ensure optimal system

performance.

Continuously improve the codebase through refactoring, code optimization, and documentation

Requirements:

Bachelor's or Master's degree in Computer Science or a related field.

5+ years of experience in Java development, with a focus on microservices development.

Strong knowledge of Java technologies such as Spring Boot, Spring Cloud, Hibernate, and RESTful

API development.

Experience in designing and developing highly scalable and reliable microservices.

Experience with containerization technologies such as Docker and Kubernetes.

Experience in developing and maintaining CI/CD pipelines.

Strong understanding of database technologies, SQL, and NoSQL databases.

Experience with cloud technologies such as AWS or Azure.

Excellent communication and collaboration skills to work effectively with cross-functional teams.

A Senior Java Microservices Developer is a critical role in the development of microservices-based

applications, and they must have a deep understanding of Java technologies and microservices

architecture to be successful in the role

Responsibilities:

 Develop and maintain high-quality, scalable, and efficient Java codebase for our ad-serving platform.

 Collaborate with cross-functional teams including product managers, designers, and other developers to

understand requirements and translate them into technical solutions.

 Design and implement new features and functionalities in the ad-serving system, focusing on performance

optimization and reliability.

 Troubleshoot and debug complex issues in the ad server environment, providing timely resolutions to ensure

uninterrupted service.

 Conduct code reviews, provide constructive feedback, and enforce coding best practices to maintain code quality

and consistency across the platform.

 Stay updated with emerging technologies and industry trends in ad serving and digital advertising, and integrate

relevant innovations into our platform.

 Work closely with DevOps and infrastructure teams to deploy and maintain the ad-serving platform in a cloud- based environment.

 Collaborate with stakeholders to gather requirements, define technical specifications, and estimate development

efforts for new projects and features.

 Mentor junior developers, sharing knowledge and best practices to foster a culture of continuous learning and

improvement within the development team.

 Participate in on-call rotations and provide support for production issues as needed, ensuring maximum uptime

and reliability of the ad-serving platform.

• You solve problems at their root, stepping back to understand the broader context.
• You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.
• You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.
• You recognize and use design patterns to solve business problems.
• You understand how operating systems work, perform and scale.
• You continually align your work with Amazon’s business objectives and seek to deliver business value.
• You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.
• You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.
• You communicate clearly with your team and with other groups and listen effectively.

• Back-end software development
• Software engineering and designing data models and write effective APIs
• Working together with engineers and product teams
• Understanding business use cases and requirements for different internal teams
• Maintenance of existing projects and New feature development
• Consume and integrate classifier/ ML snippets from Data science team

What we are looking for:

• 2+ years of industry experience with the Python and Django framework.
• Degree in Computer Science or related field
• Good analytical skills with strong fundamentals of data structures and algorithms
• Experience building backend services with hands-on experience through all stages of Agile software development life cycle. 
• Ability to write optimized codes,debug programs, and integrate applications with third party tools by developing various APIs
• Experience with Databases.
• Experience with writing REST-APIs.
• Prototyping initial collection and leveraging existing tools and/or creating new tools
• Experience working different types of datasets (e.g. unstructured, semi-structured, with missing information)
• Ability to think critically and creatively in a dynamic environment, while picking up new tools and domain knowledge along the way
• A positive attitude, and a growth mindset

Bonus:

• Experience with relevant Python libraries such as Requests, sklearn, Selenium
• Hands on experience in Machine learning implementations
• Experience with Cloud infrastructure (e.g. AWS) and relevant microservices
• Good Humor

Software Engineer - II (Backend)

As a Software Engineer – II, you'll bring a good understanding of design and coding practices and apply these independently in development. In this role - you could expect to:

• Own the lifecycle of a feature from requirement analysis to deployment and post production processes
• Perform code reviews and support your team implement best practices
• Explore trade off's on module designs
• Continuously improve performance metrics of modules owned. Performs RCAs and deploys long term fixes.
• Implement initiatives that improve engineering efficiency and excellence
• Participate in the hiring and interview process for junior developers on your team