Java / J2EE Developer

Java Technical Lead

We are solving complex technical problems in the financial 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.

Experience: 10+ years

Location: Mumbai

Job Description:

• Experience in Core Java, Spring Boot.

• Experience in microservices.

• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.

• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.

• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2

• Good knowledge of multi-threading

• Basic working knowledge of Unix/Linux

• Excellent problem solving and coding skills in Java

• Strong interpersonal, communication and analytical skills.

• Should be able 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.

About us:

TAPPP(https://tappp.com/) is building the next-generation digital platform by leveraging cell-based architecture to integrate technologies like Artificial Intelligence, Rules, Workflows, Microservices, FaaS (Function as a Service), Micro-frontends, and Micro apps to create a highly extensible and cutting-edge technology platform that brings together sports fans with broadcasters, sports teams, and sportsbooks to create a marketplace for all aspects of sports and we are available across platforms via the Web, Mobile, Roku, and Tablets.

Building out this brand presents significant product and engineering challenges. At the center of solving those challenges is the TAPPP Product Engineering team which is responsible for the TAPPP product end to end.

TAPPP is led by a very able leadership team drawn from Industry leaders from companies like ESPN, Amazon, Blackhawk, Kargocard, Visa, and

many others.

The organization is flat, processes are minimal, individual responsibility is big, and there is an emphasis on keeping non-productive influences out of the everyday technical decision-making process. Upholding these philosophies will be imperative as we execute our aggressive plan of global expansion over the next 2 years.

Who are we looking for:

A coding enthusiast who loves writing elegant code and developing software systems.

As a senior java developer, you will be a part of the core product development team that is responsible for building high-performant components of the TAPPP platform.

Your responsibility:

• You will be responsible for designing, coding, reviewing, testing, and bug-fixing different modules of the software product that needs to work seamlessly across different environments.
• Write production-quality code in Java, J2EE, and Spring
• You will work in an agile team, working on the TAPPP revolutionary platform. You‘ll be using cutting-edge solutions (Spring Boot, Docker, Kafka, Redis, Continuous Delivery) for creating and maintaining high-load distributed services that are part of our messaging platform.

Mandatory technical skills:

• Hands-on experience with
• Java 1.7+
• RDBMS (MySQL/PostgreSQL)
• JPA (Hibernate or any other ORM framework)
• Spring Boot, Spring MVC, Spring Security
• Hands-on experience in writing extensible RESTful APIs
• Hands-on in Java development (all facets of development) with a sound understanding of OOAD.
• Should have excellent debugging, code review, and design review skills
• Should have a sound understanding of a Microservice based architecture

Good to have technical skills:

Kafka

GraphQL

Redis

AWS (ECS, Cloudwatch)

Other

• Strong independent contributor
• Comfortable working in a start-up environment

The position is based in Pune, India.

• Experience in designing & developing systems/software for large business environments (Java, J2EE).
• Strong design and coding skills in Enterprise Java, REST & SOAP web services, ORM (JPA/Hibernate), Spring, Maven, JMS (ActiveMQ), Caching, XML, JSON.
• Experience with multiple integration technologies / frameworks.
• Must have good experience in Unix/Oracle/SQL.
• Experience in Agile Development, Scrum, and Iterative approaches.
• Experience and exposure to AWS Cloud Services and DevOps mindset and expertise is a plus Experience with Mule or any ESB (Enterprise Service Bus) is a plus.

• HTML/CSS/ES6 Javascript, Java 8 and any Java based web framework
• Adobe experience Manager (AEM) Apache Sling, JCR, OSGI
• Good knowledge in Apache Sling framework
• Good knowledge in Java content repository API
• Good knowledge in Apache Jack rabbbit framework
• Knowledge of OSGI and Declarative Services
• Strong understanding of REST Principles and Hands on experience REST based API  development
•  Knowledge of Patterns and good practices to design and develop quality and clean code
• Experience in Pair programming and code reviews
• Experience with testing at all levels unit, integration, functional and performance
• Experience in Agile Project (Scrum or SAFe) execution is a must
• Familiarity with git, basic git branching strategies, working in a peer-reviewed  environment,able to code to existing patterns/styles
• Familiarity with task management, bug tracking and wiki-based documentation tools like Jiraand confluence

• AEM BE developers must have modern ES6 javascript experience as well as java developer experience
• Must be comfortable working with AEM workflows, scheduled jobs, creating/modifying jcr
• nodes via java code, and accessing REST endpoints via java code
• Ability to create custom AEM CQ components and a good exposure to both core and
•  foundation components that can be inherited in AEM
• Good understanding of AEM web development framework using Apache Sling
• Create multiple OSGI Bundles in the AEM stack based on the requirements of the Project

Position Responsibilities:
1.     Design, implementation, and deployment of applications
2.     Expert knowledge in performance, scalability, enterprise system architecture, and engineering best practices.
3.     Functionally decompose complex problems into simple, straight-forward solutions.
4.     Work extensively with cross-functional teams across.
5.     Work with the business team and project managers to convert functional requirements into detailed technical specifications.
6.     The ideal candidate will be a leader, builder, and operator. He/she should be able to operate in a very fast-paced environment where time to hit the market is supercritical.

Desired Candidate profile: 
1.     A Bachelor's/Master’s degree in Computer Science or equivalent combination of technical education from Elite College or institution and work experience.
2.     4+ years of Software Development experience.
3.     Excellent object-oriented design and coding skills (Java, C++ on a UNIX or Linux platform).
4.     Very strong software development background including design patterns, data structures, test-driven development.
5.     Ability to design and implement systems end to end on your own while maintaining highest coding standards.
6.     Excellent knowledge of design patterns and ability to reflect it in their code.
7.     Ability to lead projects and mentor junior engineers on the same.
8.     Mandatory work experience in skills sets: REST API, JDBC, RDBMS (PostgreSQL, MySQL)
9.     Solid Experience with distributed (multi-tiered) systems, algorithms, and relational databases.
10.  Software development experience in Servlet, JSP, Spring, AWS, S3, SQS, building web services and highly scalable applications or Google Cloud Suite.
11.  Excellent verbal and written communication skills.

Responsibilities: 

• Develop backend systems for our first product
• Build reliable, secure and performant backend systems
• Drive test coverage and continuous delivery automation within the team
• Mentor and provide feedback to teammates

Requirements:

• 5+ years of software development experience
• Strong computer science fundamentals
• Deep and wide knowledge of Java ecosystem
• Can write code that is readable, maintainable, secure and performant
• Know the importance of tests and how to approach writing different types of tests
• Good intuition for REST API design
• Deep understanding of relational databases, transactions, entity-relationship modeling
• Comfortable writing highly concurrent systems
• Experienced in using profilers, tuning garbage collection, optimizing SQL queries

Bonus:

• Understanding of domain-driven design concepts like ubiquitous language, bounded contexts, aggregates and domain events
• Know how to use test driven development as a design tool
• Good intuition for the principles underlying object-orientation, particularly encapsulation
• Understand the importance of immutability and of reducing the state-space of objects
• Know how to refactor large codebases safely
• Seek to identify key underlying ideas and use those as building blocks before reaching for shiny new tools