
Job Description:
As per our conversation, please find below the job description for your review.
· Strong written/verbal communication skills
· Minimum 5-14 Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Forkjoin pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
· Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
· Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.
· Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
· Expert level understanding of Object-Oriented Concepts and Data Structures
· Good experience in Database (Sybase, Oracle, or SQL Server) like indexing (clustered, non clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.
· While you may already know about Wissen and the company history, here is a quick rundown for you.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
Connect with the team
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Skill: Java Developer – Mumbai
Job Description:
4.5 -8 years of Experience
- Java 8
- Spring boot
- API development
- MVC architecture
- web services
- OOPS

- Experienced in automated deployment tools such Continuous Integration (Azure DevOps/Git).
- Excellent debugging skills; able to debug complex technical issues involving multiple system components. Good to have knowledge on online & offline sync capabilities in Progressive Web Application (PWA) implementation.
- Knowledge on Azure DevOps is optional.
- Knowledge on INFORM, WARN and ERROR logging in Azure Application Insights, error handling, access authorization, data connectivity in C# is mandatory.
- Knowledge on publisher/subscriber queueing such as RabbitMQ.
- All C# code must contain descriptive comments to functions, or complex/nested loops, if, or case statements.
- Knowledge on NetSuite is an advantage.
- Knowledge on Azure Active Directory is an advantage. Knowledge on OAuth 2.0 & JWT Tokens is mandatory. Writing high-level design and technical analysis documents.
- Should have worked on Agile framework
- Strong Experience on. NET Core, . NET Microservices, C# 5.0 Xunit - Unit Test Framework - C#, Entity Framework/Entity Framework and RESTful Design, Redis
- Experience with SQL Server 2012 & above
- Should be well versed with RabbitMQ
- Knowledge on Azure Active Directory, Application Insights, Azure Devops/Git/Bitbucket Pipeline, Serverless / Azure functions, Azure Service Fabric / Functions
- Hands-on JWT Tokens, API Authorization, OAuth 2.0 JSON or XML
- Exposure to NetSuite, Workato will be an added advantage


XpressBees– a logistics company started in 2015 – is amongst the fastest growing companies of its
sector. While we started off rather humbly in the space of ecommerce B2C logistics, the last 5 years
have seen us steadily progress towards expanding our presence. Our vision to evolve into a strong full-
service logistics organization reflects itself in our new lines of business like 3PL, B2B Xpress and cross
border operations.
Our strong domain expertise and constant focus on meaningful innovation have helped us rapidly evolve
as the most trusted logistics partner of India. We have progressively carved our way towards best-in-
class technology platforms, an extensive network reach, and a seamless last mile management system.
While on this aggressive growth path, we seek to become the one-stop-shop for end-to-end logistics
solutions. Our big focus areas for the very near future include strengthening our presence as service
providers of choice and leveraging the power of technology to improve efficiencies for our clients.
Job Description
XB is looking for driven & talented engineers to build highly scalable, reliable and performant cloud-
based platforms to drive the logistics business. You will have opportunities to make a big impact at XB
on the software solutions being built for Logistics businesses. We build a variety of technology products
that span multiple businesses.
The challenges that SDEs at XB solve are big (handle 50 Lakh shipments per day!) and influence the E-
Commerce business in India in coming years. We are looking for individuals who are passionate about
creating new products, features, and services from scratch while managing ambiguity and the fast pace
of the company. The challenges span areas like highly scalable and reliable orchestration
platforms, Client Integration API frameworks, Billing Solutions, Workforce Engagement. Further you may
solve complex optimization problems like Vehicle routing, Allocation, Network Optimization etc.
Roles & Responsibilities
You will be responsible for working with cross functional teams to deep dive into the
business and technology problems related to our portfolio of products, understanding the
gaps that exist in our current tools, and work within our team and with partner teams to
design best in class solutions.
You will have the opportunity to influence, invent, and design system architecture
across multiple product and technology spaces.
You will lead and mentor other talented engineers. You will be responsible for building
the best customer experience, keeping latency, security, and usability in mind.
You will interact with Product Managers and Designers and convert their vision into
a technical solution.
You will own portions of software deliverables including major critical path code from
your designs while finding opportunities to grow and mentor the team around you.
You will collaborate with other engineering leads and guide the team on software
development best practices and set examples by using them in solutions that you build.
You will own the end-to-end design of major deliverables, working closely with a team
of SDEs and Front-End Engineers to execute them. This is a high visibility and fast-paced
environment where you will make a direct impact on the customer experience and the
bottom line of the company.
You should have a commanding understanding of object-oriented design, data
structures and algorithms which you use to mentor a team of engineers. You should have
experience with agile methodologies, experience building scalable services and robust user
interfaces. We make extensive use of AWS Services (API Gateway, Lambda, SQS, etc.) and
prior experience is a plus. Experience with modern JavaScript frameworks (like angular,
react, backbone, and node.js) would be a plus.
Qualifications
Experience developing cloud software services and an understanding of design for
scalability, performance, and reliability.
Development experience defining, developing and maintaining web service API's
Demonstrated ability to mentor other software developers to maintain architectural
vision and software quality.
Experience in communicating with users, other technical teams, and senior
management to collect requirements, describe software product features, technical designs,
and product strategy.
Experience taking a leading role in building complex software systems that have been
successfully delivered to customers.
Knowledge of professional software engineering practices & best practices for the full
software development life cycle, including coding standards, code reviews, source control
management, build processes, testing, and operations.
Experience with distributed computing and enterprise-wide systems
Deep understanding of CS fundamentals including data structures, algorithms and
complexity analysis.
Experience building large-scale, high-performance systems in a complex, multi-tiered,
distributed environment.
Design and architecture expertise as well as familiarity with object-oriented analysis and
design patterns (OOA/OOD).
Ability to thrive in a fast-paced, dynamic environment.
standing of Java and the different frameworks like Spring, etc., and have experience working on Cloud and Containers.
The Developer will perform duties and tasks to support a complete life cycle management (example: Analysis, Technical
Requirements, Design, Coding, Testing and implementation of Systems, etc.).
The Developer will work closely with the Product and Technical teams across different regions primarily Europe and will
be part of an Agile Team. The role includes research and Continuous Development of new Products based on new Tech-
nologies. This position collaborates with the operations team routinely and henceforth excellent English communication
skills (bothwritten and verbal) are essential.
A clean coder who will always leave the code in better shape than they found it.
A curious person who never stops learning and loves to try new things, even when theydon’t succeed on the
first try
A team-oriented developer with the motivation to bring out the best in others
A person who shares our appreciation for transparency and is willing to share theirexperience and knowledge
for the benefit of the team
Someone who is willing to take a stand for something they believe in.
Somebody that takes pride in their work and knows that development is a craftsmanship
Duties & Responsibilities
Conducts systems and requirements analysis, creates and contributes to task lists, cost and time analysis
Performs assigned functions and tasks to meet project plan and quality review requirements.
Raises issues as appropriate to support effective resolutions.
Analyzes specifications and user requirements to perform assigned applications development work.
Assists with system and componentdesigns to meet requirements.
Participates and documents design and code reviews to improve quality.
Analyzes, designs, codes, tests, and documents to develop application software.
Develops unit tests and unit test plans to deliver quality code.
Performs applications maintenance and support functions to support problem resolution.
Qualifications:
• Bachelor’s degree in Computer Science or IT related field
• 4-7 years of experience working across different product domains in a product development/engineering role
• Good communication skills necessary to manage business requests and work with different teams across differ-
ent geographies and time-zones; experience working with remote and distributed teams will be an added ad-
vantage
• Hands-on working knowledge and experience is requiredin:
a. Java (Spring, Spring Boot, etc.)
b. Experience working in GCP or AWS or Azure
c. Experience working in Containers & Unix Platforms
d. Relational Databases (PostgreSQL, MySQL, SQL, etc.)
e. Messaging (RabbitMQ, ActiveMQ, Kafka etc.)
f. Agile Methodologies (Scrum, TDD, BDD, etc.)
g. Understanding of Microservices Architecture, Domain Driver Design, Test Driven Development and
Secure Design patterns and architecture is a must
h. Data Structures and Algorithms using Java or other Programing Languages
i. Strong organizational skills
j. Agile Methodologies (Scrum, TDD, BDD, etc.)
• Experience with several of the following tools/technologies is desirable:
a. GIT (Bit Bucket, Gitlab, etc.), Jira, Gradle, Maven, Jenkins, SharePoint, Eclipse/IntelliJ.
b. Multiple Java technologies around Spring, Spring Bootetc.
c. Design Patterns and implementing the Design Patterns
d. Development of Complex Application and System Architectures
e. NoSQL Databases (Redis, Mongo, etc.)
f. Experience working with CI/CD pipelines with for example GitHub Actions.
• Knowledge of the following technologies is a plus:
a. Other Programming Languages (NodeJS, etc.)
b. Continuous Integration and Continuous Delivery Tools like Jenkins, Git, etc.
c. Application Servers like Tomcat, etc.
d. HTML5, CSS, AJAX, React
e. Full stack development
f. Secure Development based on OWASP standards
Job Description
Who are we looking for?
A senior level Java-J2EEE lead to manage a critical project for one of the biggest clients in banking domain. The Individual should be passionate about technology, experienced in developing and managing cutting edge technology applications.
We are looking for people from the trading background
Technical Skills:
- An excellent tech Lead or application architect with strong experience in monolithic Java legacy applications, modern cloud-native
- Strong hands-on experience in Spring, Core Java specifically on multi-threading, concurrency, memory management process, and fair understanding on network communication & protocols.
- experience working in software development on low-latency and high performing systems
- Experienced to guide & mentor the offshore team members, validating application deliverables on regular basis
- Ability to work in a collaborative manner with peers across different time zones.
- Passionate about good design and code quality and have strong engineering practices
- Experience working on GCP will be preferred.
Process Skills:
- Experience in analyzing requirements and develop software as per project defined software process
- Develop and review design, code
- Develop and document architecture framework, technical standards, and application roadmap
- Guide development teams to comply with the architecture and development standards and ensure quality application is designed, developed, and delivered
- Must have excellent communication skills.
Behavioral Skills:
- Resolve technical issues of projects and Explore alternate designs
- Effectively collaborates and communicates with the stakeholders and ensure client satisfaction
- Mentor, Train and coach members of project groups to ensure effective knowledge management activity.
Certification:
- Ultimate sun Java and GCP Certified
Experience required
-
Strong hands-on experience in Core Java, JSP, Spring , Struts and Web Services (SOAP and REST)
-
Should have good understanding Object Oriented Design , Domain Driven Design , Database (Oracle,DB2), ORM framework like Hibernate and JavaScript framework
-
Should have awareness on OWASP security vulnerabilities. Knowledge on Security tools like Fortify Checkmarx CAST SonarQube etc will be value added
-
Good understanding on DevOps concept (preferably working experience on Teamcity or Jenkins or Docker)
-
Ability to quickly troubleshooting and diagnosis of the application issues.
-
Provide support delivery and cross functional teams
-
Strong in reviewing technical design
-
Excellent communication skills
-
Excellent customer handling skills
-
Experience in OO, DI, IoC design patterns
-
Recommend changes on project design concepts to improve efficiency.
-
Develop design specifications, installation instructions and other system-related information.
-
Verify stability, interoperability, portability, security and scalability of java system architecture.
-
Evaluate current or emerging technologies to consider monetary factors of java program.
-
Knowledge of Enterprise message bus
- Experience in designing and developing web-based applications using Java, J2EE, Web Services, MVC framework, Servlets Spring, Hibernate, Struts, REST, MYSQL.
- Experience in Database application programming for MySQL server using
Stored Procedures, Triggers, Views etc. - Experienced in implementing presentation layer using JSP, HTML, CSS, Ajax, JQuery. Java script.
- Experienced in Analysis, Design, Development, Integration, Deployment
and Maintenance of Web services, Client Server and Web based applications. - Well versed with Agile development process, Scrum.
- Good knowledge in version control system tools like GIT.
- Ability to take independent responsibility as well as ability to contribute and be a productive team member.
- Excellent analytical, logical and programming skills, Self-Motivated, Self-Starter, Team Player can work with minimal supervision with effective Communication skills and Organizational skills combined with attention and Time management skills.


