Senior Java Developer

Java Developer – Job Description

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. - 5-8 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.

• Design, build and maintain efficient, reusable, and reliable Java code. 
• Providing technical oversight to the team, involved in design and code review.
• You would also be spending most of the time in development activities in varied technologies and should have a passion to write code.
• Should be able to create good technical documents.
• Translate application storyboards and use cases into functional applications.
• Ensure the best possible performance, quality, and responsiveness of the applications.
• Identify bottlenecks and bugs, and devise solutions to these problems - Help maintain code quality, organization, and automatization. 
• Prepare the technical design of complex technology components as well as suggest the pros and cons of using a certain technology stack or component or design pattern versus another, to the clients.
• Team Management.

• Qualifications: BTECH/MTECH/MCA/MSc.
• Proficient in Java, with a good knowledge of its ecosystems with a knack for writing clean, readable Java code, writing reusable Java libraries along with knowledge of multithreading, concurrency patterns, and collections in Java. 
• Solid understanding of object-oriented programming along with various design and architectural patterns.
• Hands on experience with JMS, JPA, Spring (MVC, Boot & Cloud preferred) & Hibernate.
• Familiarity with concepts of MVC, JDBC, and RESTful.  Experience with Presentation Layer (JSP/Servlets), JS Frameworks (Angular, jQuery, react, etc.).
• Creating database schemas that represent and support business processes and experience with both external and embedded databases. Implementing automated testing platforms and unit tests.
• Proficient understanding of code versioning tools, such as Git, Ant, Maven, and Gradle; continuous integration.
• Knowledge in xml based mappings, SAML, rest clients, CAS authentication and Jetty.
• Knowledge of Apache Camel and Kafka and Drools Rule Engine is preferred.

Job Title: Java Team Lead

Experience: 4.5 to 8 years

Notice Period: Up to 30days (Negotiable)

Job Description :

• Experience in Java/J2EE technologies - design development of high-volume, high-performance, high-availability, service-oriented applications
• Design and govern the reusable accelerators, design patterns and reusable technical components (e.g. error handling, logging etc.)
• Strong knowledge in developing scalable web applications using Spring Boot with JDBC, JPA, Security,  RESTful Web Services
• Experience in front end development using HTML5, JQuery, React JS or Angular
• Research and implement new tools, frameworks and patterns to build a hybrid cloud applications
• Strong knowledge in Database – MySQL / PostgreSQL
• Knowledge of deploying applications in Ubuntu on Cloud Infrastructure
• Knowledge of Docker and Kubernetes for automatic application deployment will be an added advantage
• Lead a team and provide technical knowledge to team members during development

Roles & Responsibilities

• Understand the Requirement
• Convert them into Document
• Deliver the Work Product (software components / modules) with Quality
• High level design & Defining Architecture
• Following Coding best practices

• You are a great teammate with proven capabilities working on SaaS product and a passion for writing exception code.
• You are hungry for an opportunity to join a start-up and become a member of core platform team driving the company forward.
• Has good analytical and problem-solving skills and is able to break down a solution into smaller units of work and produce a solution roadmap.
• Has written high quality, well-tested shared components that can be leveraged by multiple systems. Can step into specific projects to supply additional management, coding and engineering capacity as needed.
• Has expert knowledge in distributes systems and high-volume transactions.
• Understand the product mission, goals, and tasks and execute with the team to achieve them.
• Understand the design and architecture and build modules in accordance with it or recommend and make the necessary changes that adds more stability to our product.
• Improve the quality of our front-end code and our overall front-end user experience.
• Takes requirements (business features, technical debts and internal enhancements) and designs resilient solutions. 

• 1+ years of hands-on experience in Java/Kotlin.
• Demonstrable understanding of Design Patterns.
• Experience in Context & Dependency Injection or Spring framework, Hibernate/JPA.
• Experience in RESTful/SOAP web services in integrating with 3rd Party API Integrations.
• Proficient in SQL (PostgreSQL) and NoSQL databases.
• Experience in multi-threading and concurrency is a plus Experience in JMS messaging using Apache Zookeeper and Kafka is a plus.
• Experience in Angular is a plus. Knowledge of modern CI/CD environments: Git, Gradle, GitLab Familiarity with tools like Postman, SOAPUI, IntelliJ

• Willing to learn our tech-stack (Kotlin | CDI | Angular).
• Develop API integrations using RESTful/SOAP web services.
• Significant technical academic course work or equivalent work experience
• Excellent communication and interpersonal skills.
• Knowledge on cloud infrastructure is a plus.

Must skills:

Hands- on in the following:

• Java 8/J2EE
• Spring boot
• Gradle/Maven
• REST API
• ORM- hibernate/ JPA
• Unit Testing and Integration Testing- Junit/ TestNG

Good to have:

Hands-on in the following:

• CI/CD pipeline deployment
• Messaging- ActiveMQ/RabbitMQ/MQ
• DB2
• Kafka
• NoSQL framework exposure

At Cityflo, we are solving the problem of commuting to the office which affects employees in big, populated Indian cities every day. Cityflo provides a bus experience like no other - we run premium AC buses for daily commuters. We’re changing the way urban Indians commute and enabling everyone to reclaim hours of their time every day. Before the imposed lockdown due to coronavirus, we were serving about 7500 commuters per day. We plan to scale to 5,00,000 per day in the next 4 years in a profitable and sustainable manner.

You can read more about our engineering and culture on our blog: https://blog.cityflo.com/tag/engineering/" target="_blank">https://blog.cityflo.com/tag/engineering/

Role & Requirements

• 2+ year experience in application development
• ability to write efficient SQL queries and design schemas for relational databases
• good knowledge of operating systems and networking concepts
• experience in using and understanding code from Open Source
• experience with implementing best software engineering practices like version control with git, code reviews, writing unit-tests, writing readable code
• experience with Python and Django is a plus.
• inclination towards researching new technologies and adapt them to solve challenges we face

We look for engineers who

• Are committed to their growth and learning
• care about working in and building a strong engineering culture
• want to take significant ownership and decision making power
• want to make an impact in the real world while working with a great team in a hyper-growth environment