
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. - 4 to 10 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.

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.
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Key Responsibilities:
- Rewrite existing APIs in NodeJS.
- Remodel the APIs into Micro services-based architecture.
- Implement a caching layer wherever possible.
- Optimize the API for high performance and scalability.
- Write unit tests for API Testing.
- Automate the code testing and deployment process.
Skills Required:
- At least 3 years of experience developing Backends using NodeJS — should be well versed with its asynchronous nature & event loop, and know its quirks and workarounds.
- Excellent hands-on experience using MySQL or any other SQL Database.
- Good knowledge of MongoDB or any other NoSQL Database.
- Good knowledge of Redis, its data types, and their use cases.
- Experience with graph-based databases like GraphQL and Neo4j.
- Experience developing and deploying REST APIs.
- Good knowledge of Unit Testing and available Test Frameworks.
- Good understanding of advanced JS libraries and frameworks.
- Experience with Web sockets, Service Workers, and Web Push Notifications.
- Familiar with NodeJS profiling tools.
- Proficient understanding of code versioning tools such as Git.
- Good knowledge of creating and maintaining DevOps infrastructure on cloud platforms.
- Should be a fast learner and a go-getter — without any fear of trying out new things Preferences.
- Experience building a large-scale social or location-based app.
Roles and Responsibilities
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.
Lead from the front, when it comes to delivering high quality work products. Serve as a mentor to the team members
Create and define performance metrics. Ideate, innovate and hack through the existing systems to improve performance
Perform code reviews, set coding practices and guidelines within the team.
Make sense of the product specs, be nimble in getting the issues resolved. Be a thought leader.
Critical Functional Skills
Solid understanding and knowledge of Java/C/C++. You should understand the concepts of multithreading, I/O, messaging, instrumentation etc and their implementation in Java/Any other ObjectOriented Language.
Proficiency in the implementation of algorithms and the use of advanced data structures to solve problems in computing. A solid foundation in the principles of computer science is desired.
Ability to write clean, modular, and loosely coupled code by the use of design patterns.
He/She should be able to break down and architect complex software systems. For example
BuildCars Availability Engine for Ola.
Strong decisionmaking ability
Deep expertise in at least one programming language & tech stack.
Substantial experience in building complex and scalable solutions.
Strong object oriented design skills, ability to apply design patterns, and an uncanny ability to design intuitive module and class level interfaces
The ability to do deep problem solving and build elegant, maintainable solutions to complex problems.
Experience leading multi engineer projects and mentoring junior engineers
Experience with full life cycle development in any programming language on a Linux platform
Comprehensive operational experience including, optimizations, deployments and tuning servers like apache/mysql/tomcat/solr
Prior experience in working with Agile software methodologies (XP, Scrum), TDD, and Continuous Integration(CI/CD) a plus.
Experience in building data driven web application design and development is a plus
Expert level experience in building a scalable, large and complex business application
.Experience Required
:Typically with an experience of 5+ years of development experience in a product firm.
Must have lead, designed, architected and delivered at least 1 project in his previous assignments independently.
Minimum Qualifications Required
Btech/MS from a reputed Institute
Deep expertise with any or combination programming languages: Java, C++, C#, Ruby, Scala,
Go any object oriented high level proprietary or open source language with strong programming constructs. We are not skill specific but go by strength in competencies Machine coding Single machine in memory program
Need a working code with functionality Readable and well designed code with right abstractions, separation of concerns,right design patterns
Performant code with concurrency and efficient data structures
Write test cases covering the happy path and edge cases
Problem Solving
Choose the right combination of data structures to solve the problem
Identify most edge cases for the problem
Identify opportunities of parallelism: utilizes multicore solutions where applicable
Design & Architecture
Distributed systems design and system interaction
Identify API signatures
LLD with class design
Solve for performance & availability
- 3+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 4+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
- 3+ years of professional software development experience
- 3+ years of object-orientedJava/ J2EE development
- Full SDLC experience (requirements gathering, architecture, development, QA, etc…)
- Experience with Spring (MVC, IOP/DI, REST, Security) & Hibernate/Spring
- Experience with SOAP / REST web services
- Knowledge of SQL
- Knowledge of No SQL concepts, understanding of Solr, Redis and Mongo DB is desirable
- Understanding concepts of CDN & Content Management
- Must have worked on any one messaging solutions
- Bonus Points for micro service design and development experience
- Bonus points for any mobile development experience
- Used Agile methodology
- Experience leading or working with cross geography teams
- Bonus Points for experience working on Unix, shell scripting & Build Systems
- Experience in performance optimization is an added advantage
POSITION
- You will be actively involved during the entire technology development lifecycle. Responsibilities will include all aspects from design, coding, testing, customer feedback cycle changes and support.
- Primary role in software development with object-orientedJava
- The customized solutions that you will be architecting and developing will also require knowledge and experience with spring / Hibernate, SOAP / REST, and SQL.
- Ability to learn new technologies quickly and willingness to read and digest large existing source code and take ownership on complex component or subsystem to drive improvements and re-architecture
- Work with a team of amazing developers and designers involved in the design and development of global platforms
- Invent and prototype new features, build, test and ship them to customers as SaaS, cloud based or hosted product platforms
- Drive the implementation of new technologies which improve our ability to build great customers products.
- Participate in a fun, open learning environment with great benefits and smart talented folks that represent among the best globally.
QUALIFICATION
- A Bachelor’s degree in Computer Science (or equivalent experience)
- M-Tech or advanced degree a plus
- Hackathon participation and accolades are a plus
●3+ years of Software Engineering or Software Development experience, preferably in a related field.
● Good knowledge of Core Java (Minimum Version 8)
● J2EE with a good understanding of Servlets and JSP
● Experience in Spring Modules – Spring IOC and AOP, Spring Boot (version 2 plus), JDBC
● Expertise in design and development of various web and enterprise – level applications using Java/J2EE
technologies such as Spring, Hibernate, Rest services.
● Web Services (including SOAP, XML, XML Schema, JSON, and REST)
● Tools required: Maven,Eclipse, Github, and Swagger
● Good knowledge of SQL and Redis (NOSql)
● Ability to document requirements and specifications
● Proven work experience as a Software Engineer or Software Developer
● Ability to develop software in Java or any other OOPS languages
● Excellent knowledge of relational databases, SQL and ORM technologies (JPA2, Hibernate)
● Experience in developing Web Applications using at least one popular Web Framework (Spring)
● Experience with test-driven development
● Proficiency in software engineering tools
Remote (Pan India)
SHIFT TIMINGS: UK Shift
Summer - 1:30pm-10:30pm IST
Winter - 2:30pm-11:30pm IST
Role: Java developer
Location: Gurgaon
Exp-3-5 yrs
Description:
- 3+ years of Coding and development experience
2. Hands on technical experience in must have technical requirements.
3. Strong working knowledge of Developing, Designing and implementing large scale enterprise applications.
4. Possess strong analytical skills, organizational skills, attention to detail, and excellent verbal and written communication skills.
5. Ability to establish and maintain effective working relationships with co-workers, managers and internal and/or external customers.
6. Knowledge of Agile process
REQUIRED TECHNICAL SKILL SET
Must have: AWS, Java, J2EE, Angular, React, Javascript, Spring MVC, Webservices (REST), Servlets, Hibernate
Nice to have: EXTJS, JBoss Drools Rules Engine, JQuery
RESPONSIBILITIES
1. Analyses and evaluates detailed business and technical requirements.
2. Codes and maintains complex components of information systems.
3. Develops and performs unit testing and fixes defects identified during testing and re-executes unit tests to validate results.
4. Ensure code quality by performing technical design and code reviews
5. Perform integration via Services/Batch with external and internal systems; develop presentation, business/application services and persistence components
6. Module level ownership and ensure that any development that occurs in that module is as per the agreed solution.
7. Profiling & Performance turning of Javaapplications
Hiring Java Developers across hierarchical level for Datametica Solutions Pvt. Ltd.
Designation: Developer / Lead / Architect - JAVA
Experience - 4+ Years
Work Location - Pune
Responsibilities:
- Own, drive and evolve product systems/subsystems
- Develop, architect highly scalable, highly available, reliable, secure and fault-tolerant systems with minimal guidance
- Suggest new architectural elements to improve the existing architecture
- Design and implement low latency RESTful services; Define API contracts between services; Version APIs and make them backward compatible
- Translate business requirements into scalable and extensible design
- Create platforms, reusable libraries and utilities wherever applicable
- Continuously refactor applications to ensure high-quality design
- Choose the right technology stack for the product systems/subsystems
- Write high-quality code that are modular, functional and testable; Establish the best coding practices
- Formally mentor junior engineers on design, coding and troubleshooting
- Plan projects using agile methodologies and ensure timely delivery
- Work with automation engineers to automate end-end flows and non-functional requirements
- Troubleshoot issues effectively in a distributed architecture
- Communicate, collaborate and work effectively in a global environment
- Operationalize releases by partnering with Tech operations on capacity planning and operability of the product.
Skills Required:
- Proficient in JVM based language(like Java, Groovy), J2EE technology stack
- Expertise in API design and development
- Experience in dealing with a large dataset
- Strong in Data Structure, collections, algorithms, multithreading, etc
- Practicing the coding standards (clean code, design patterns, etc)
- Very strong object-oriented design skills, awareness of design patterns and architectural patterns
- Performance tuning and Troubleshooting memory issues, GC tuning, resource leaks, etc.
- Strong problem-solving skills, algorithmic skills and data structures
- Experience in agile methodologies like Scrum
- Good understanding of branching, build, deployment, continuous integration methodologies
- Experience in leading a team (min 5)and mentoring engineers
- Attitude to getting Stuff Done!
- Ability to make decisions independently.
Interested candidate must shoot up their resume immediately.
Note: Candidates who are immediately available or have a notice period of 30 to 45 Days are highly preferred.
**Sr. Backend Developer Responsibilities:**
* Commitment towards delivering features on the estimated time
* Follow standard code guidelines for writing code and code review of your fellow team member's code
* Strong understanding of REST Framework
* Designing and developing REST APIs
* Ensuring scalability of code written
**Sr. Backend Developer Requirements:**
* Strong understanding of Node or any other equivalent language
* Strong understanding of database technology such as MySQL and MongoDB
* Good understanding of AWS, Redis, ElasticSeacrh, Newrelic, sentry, etc
* Have experience in monitoring and managing production level systems
* Degree in Computer Science
* Excellent verbal communication skills
* Good problem-solving skills
* Attention to detail
**About Easy Eat**
Easy Eat is reimagining the experience of dining in at a restaurant. We're starting with Malaysia and South East Asia but we believe, 5 years from now, you'll experience it in the same way across the world.
We've achieved Product Market Fit and are growing rapidly across geographies. We crossed the $10M annual run rate in just 12 months and we're really excited for the journey ahead.
**About the team**
We're a group of experienced founders who have *been there, done that* in the past. Raised funds from global VCs in industry. Have operated at scale, know how to leverage data and grow culture and teams.









