Core Java - Multithreading, Exception handling, Garbage collection.
at OpexAI

About OpexAI
About
We at opexAI strive to make business strategies and provide effective solutions to your complex business problems using AI, machine learning and cognitive computing approaches. With a 40+ years experience in analytics and a workforce of highly skilled and certified consultants, we provide a realistic approach to help you chart an optimal path to success.
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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
- Experience in corporate training with minimum 3.5 years of experience in Technical training
- Exposure into Core Java & Advanced Java
- Candidate should have good Presentation, verbal & written communication Skills.
- Good to have knowledge on FET
Job Location: New Delhi
What you’ll do:
- Contribute to all phases of the Software development lifecycle
- Write well-designed testable, efficient code and complex code with Data Structure & Algorithms.
- Ensure designs are in compliance with specifications on Java and RestAPI.
- Prepare and produce releases of software component
- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
- A Developer whose job includes writing complex code, testing, and fixing bugs.
- Maintain, design the database and organize collected information.
- A specialized programmer who focuses on multiple types of development.
What you’ll bring:
- 2 year to 5 years of proven hands-on Software Development experience.
- Strong experience in Java programming
- Expertise Knowledge of Data structures and Algorithms
- Proven working experience in a product-based organization (preferred)
- Understanding with Java frameworks Spring boot, Microservices and ORM frameworks.
- Must have the experience to design and build scalable REST APIs.
- Object-oriented analysis and design using common design patterns.
Job Description :
We are currently building a next generation consumer tech product at the intersection of AI ML through Mobile and Commerce. The product requires building proprietary frameworks using latest technologies.
We have an urgent requirement of a Backend Developer/ Fresher/ Intern, who would become core member of our Product Team, is a great problem solver, can learn quickly, and communicate clearly.
Must Have Skill Set :
-
Efficient software development background including design patterns, data structures, test driven development
-
Individual contributor with strong analytical skills, with excellent problem solving abilities. Excellent verbal and written communication skills
-
Should be able to work under tight deadlines and stretch as and when required
-
Self starter with the ability to research solutions independently and solve problems Strong, object oriented design and coding skills, c++/Java on a Linux platform Preferably with internship experience of Product based companies Working on products with strong Knowledge of SpringBoot and REST API frameworks Strong knowledge of Data structures and Algorithms
-
Hands on expertise in Database/Datastores - MongoDB, MYSQL, Elastic Search, Redis and Kafka will be a big plus
Key Responsibility :
-
Tasks will include complete responsibility for application design, code development, testing, deployment and maintenance
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Develop code as part of an agile team to deliver new features enhancements Design and develop REST APIs
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Follow approved life cycle methodologies, create design documents, and perform program coding and testing Develop plans outlining steps and time tables for developing programs and communicate plans and status to management
-
Work independently or with minimal supervision and utilize knowledge, experience and judgment to accomplish well defined goals
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You should be at ease with maintaining cloud instances on AWS and other cloud services
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You have experience in identifying, debugging and resolving complex production issues End to End ownership of various applications and microservices
-
Architect, design, develop, deploy and operate services that serve millions of users
What You Get :
1. You work with a team of passionate folks who love design and technology 2. Immense learning and growth opportunities in small, multi functional, tightly
knit teams
3. Flexible work timings; 5 days a week
4. Accelerated learning
5. Huge Responsibility early in your career which will come handy in future
6. Ownership and independence
Qualifications :
B.Tech/ MCA in Computer Science or equivalent
About QuHu
QuHu is an audio first content platform where users can create, share & distribute their content and the discovery happens via a feed based on interest graph. We aim to build an audio ecosystem with a global presence consisting of audio-based social networks and audio communities.
At QuHu, we want to cultivate a vibrant and growing online UGC audio community and interactive audio entertainment platform where users are encouraged to create, share, discover and enjoy audio, and experience immersive and diversified entertainment features through audio. QuHu envisions a global audio ecosystem – a place where everyone can be connected through voices and across cultures.
The two pillars around which QuHu is built are:
Users - for whom we want to solve the problem of discovery basis interest (algorithmically driven feed) and provide an impressive experience through audio- bites (short content), live audio, audio rooms & audio games.
Creators - for whom we want to make creation & editing a seamless process through a suite of 'creator tools' like sound mixing, trim, pitch shifter, voicemojis, voice filters, noise reduction, etc & help them monetise

- Understand the overall requirements of the product/platform and specifically for the assigned feature/module.
- Design and Develop Software as per the product architecture and requirements.
- Code and unit testing of the feature/modules including appropriate design reviews and code inspections.
- Ensure adherence to the software development processes.
- Investigates software/system problems to isolate the root cause and provides innovative solutions.
- Collaborates with cross-functional teams (locally & globally) to ensure product releases meet quality, performance, scalability, reliability, and schedule goals.
Qualifications
- Bachelor’s or Master’s degree in Computer Science, Software Engineering or Information Technology.
- 6-10 years of experience in software development using J2EE technologies
- Experience with Core Java, JEE5 (JSP/JMS/Web Services/Servlets), Spring, Hibernate, REST, JBOSS/Tomcat Servers
- 1+ years of experience using Azure IOT technologies
- Work experience in Azure IoT Suite: IoT HUB, Azure TSI, DPS, Service Bus, Azure Functions, Azure KeyVault, MCI/AKS, Azure AD
- Knowledge in Azure Data Lake, Azure SQL
- Strong understanding of object-oriented programming
- Knowledge in ReactJS, JQuery is a plus
- Good knowledge in SQL -preferable
- Must have worked in agile/scrum environment
- Good understanding of software development processes, preferably for a regulated medical devices environment (ISO13485/FDA)
- Ability to work with cross-functional and remote teams.
- Flexibility to work on different areas of the product/platform
- Good written and verbal English communication
- Ability to travel as needed (minimal)
Qualification & Experience:
- Bachelor of Engineering, preferably in Computer Science/or related fields or Masters, from a premier college
- 2 to 6 years overall software development experience
- Proven hands-on Software Development experience
- Ability to work with an agile mindset
- Having a polyglot mindset to think beyond one programming language/framework to choose the right tech stack for the right problem and exhibit learnability to pick up new technologies
- Proven working experience in Java development/Python development with reasonable exposure to Python/Java respectively or willingness to learn Python/Java
- Hands on experience in designing and developing applications using Java EE platforms/Python Frameworks
- Object Oriented analysis and design using common design patterns
- Good Understanding of Data Structures & Algorithms
- Hands on multi-threading
- Experience in the Relational Databases, SQL and ORM technologies (e.g. JDBC, JPA2, Hibernate, Django ORM)
- Experience with test-driven development

About Clari
Clari uses AI and automation to drive growth and retention for high-performing revenue teams. Clari’s Revenue Operations platform is currently processing over $300 billion in pipeline, and is used by over 50,000 marketing, sales and customer success professionals across 170 countries. Customers include market leaders like Symantec, Adobe, Alteryx, Workday, Lenovo, Zoom, Medallia, Alteryx and hundreds of others. Clari harvests and analyzes activity signals from dozens of different business systems, including email, calendar, CRM, marketing automation, to shorten sales cycles, increase win rates, and make revenue more predictable.
The result is passionate and frankly humbling customer loyalty. We consistently hear from our customers how we’ve changed their lives - just check out the reviews on https://www.g2crowd.com/products/clari/reviews">G2 Crowd. It never gets old, and we never take it for granted.
Clari is looking for several key experienced engineering who will focus on implementing many different areas of our solution, including but not limited to our overall web architecture, core application features such as data science driven analytics, user management, content management, social graph integration, personalization, emails, collaboration systems and enterprise content repositories as well as on unstructured data analytics, machine learning and our relevance engine.
Join our core applications team where you’ll work with truly remarkable colleagues on highly diverse, complex, and relevant problems while building scalable applications designed to service millions of mobile and web-based information workers. You’ll work closely with product managers, designers, and others in a cross functional environment on multiple projects, from concept phase through testing, launch and ongoing operations.
We work in an open, collaborative environment and seek exceptional developers who enjoy problem solving and straying outside the routine. You will also contribute to the growth of Clari by being a Brand Ambassador and assist in the hiring of great talent.
Qualifications
- 3+ years of professional server development experience using Java or similar object-oriented language
- Strong understanding of web-based architecture - web servers, load balancing, caching, databases etc.
- Basic knowledge of SQL (Postgres, MySQL) and NoSQL databases (MongoDB)
- Experience developing data driven web applications
- Up-to-date knowledge of latest trends in web application development, including Amazon AWS ecosystem
- Experience building and using RESTful APIs
Nice to Have
- Experience with multi-threading, replication etc. concepts in cloud applications
- Familiarity with large scale business intelligence applications
- Familiarity of JavaScript and other web technologies such as React
Why Clari?
Because we have a big mission, a winning product and an amazing fan base of passionate customers.
We’re changing the world and having a lot of fun on the way. Clari is a fun and fast-growing Silicon Valley company. Clari is one of Inc. Magazine’s best places to work in the US and was named as a 2019 Top Bay Area Workplace for the 5th consecutive year. In October 2019, we closed $60M in Series D funding and are growing at 200%. Our product is a winner - we have perennially been given the highest overall rating in G2 Crowd’s Top 20 Sales Analytics Software. We’re backed by top tier investors including Sequoia Capital, Bain Capital, Sapphire Ventures, Madrona Venture Group and Tenaya Capital, and have a superb and supportive board.
Our team is made up of veteran entrepreneurs, brilliant engineers, and tried-and-true sales professionals who have done this before and want to do it again, this time only bigger.
What’s left to add? You.



