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 Object-Oriented 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- Build
• Cars Availability Engine for Ola.
• Strong decision-making 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 multi-core solutions where applicable
• Design & Architecture
• Distributed systems design and system interaction
• Identify API signatures
• LLD with class design
• Solve for performance & availability

About Olacabs.com
About
Connect with the team
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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 7 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 clientfacing 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.
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Key Responsibility Areas:
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· Technical Project Manager · Software Architect · Solution design · Project Management and Resource management · Development, Deployment, testing · DB architect and design · Full ownership of product deliveries and mentoring junior team members. · Preparing curriculum to train junior developers for Java Web Development · Strong client interactions to provide excellent Quality of Service. · Owning the code base and making sure all code is reviewed and is of very high quality. · Write and modify coding conventions and standards documents for all development
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Required Skills:
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Project Manager and resource manager · Resource management o Leaves, attendance, queries and grievances · Project Management o Capacity/resources requirement o Scheduling and planning and o Client negotiation o Tracking o Allocation of work o Risk and dependencies management o Issues management o Requirement management o Client interaction o Governance o Client relations o Feedback for project and resources o Delivery and Deployment management o Team building
Technical Project Manager · Technical Delivery management · Deployment management · Requirement analysis, breakdown, estimation · Technical Risk and issues management · Technical issues management · Team support Software Architect/Solution Designer · Software architect · Solution design · DB Architect and Design · Application performance monitoring and suggesting the changes accordingly. · DB performance monitoring and suggesting the changes accordingly. · Expertise in SQL/MySQL
Team lead · Team monitoring · Work allocation · Tracking and follow-up · Addressing and resolving the queries (technical and non-technical) · Support and motivation of team · Coding and review · Testing and documentation · Delivery and deployment. · Issues resolution and support.
· Technologies/Frameworks – - Core Java, J2EE, - Spring Core and Spring MVC, Sprint Boot, Spring Security, - JDBC, Hibernate, RESTful APIs, SOAP WebServices - Knowledge of JavaScript, JQuery, AJAX, HTML5, and CSS3, Angular is added advantage - Junit or Mockito frameworks - Maven, Git - Knowledge Data Structures, - SQL, MySQL - Designing relational database schemas - Basics of AWS, Cloud, Microservices
· Good spoken, verbal, and written communication · Availability for extended hours. · Proactive, responsible and accountable
- BFSI, FinTech
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Qualification
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B.E., B.Tech. from reputed institutes with good academic record |
Who are we?
Whatfix is the #1 Digital Adoption Platform (DAP) for Enterprises. We are disrupting the way Learning, Training and Application Support content is consumed. We provide large enterprises with a SaaS platform that helps accelerate product adoption and reduce support & training efforts by providing contextual and step by step guidance inside any web application at the exact time a task is being performed. The product has redefined the way companies onboard, train, and provide support to users.
What sets us apart from the rest?
With over 100 of the Fortune 500 companies already onboard as customers, Whatfix has been named among the top 20 B2B tech companies alongside the likes of Adobe, PayPal, and Cisco.
With a YoY growth of 300%, we have also been recognized among the top 50 fastest growing SaaS companies worldwide in the SaaS 1000 list and as a Market Leader by Gartner in the Digital Adoption space.
We are pleased to have an Employee rating of 4.6 on Glassdoor and our Customer obsession can be seen in our reviews on platforms like G2 Crowd & Gartner Peer Insights.
The employees are happy, the customers are happy, but what about the investors? Take a look for yourself - Sequoia Capital || Stellaris || Cisco || Eight Roads || Helion Ventures
“Hustle Mode ON” is something we live by.
Our Team:
The Engineering team at Whatfix provides end to end engineering throughput that forms part of core platforms and services that drive Whatfix business.
Our team is responsible for creating the Customer Platform and everything around it be it Analytics, Infrastructure or Core Algorithms. The team owns and is responsible for all pieces that we design, build and support end to end for Whatfix product/ business.
Your Opportunity:
As part of the Core Engineering Team @Whatfix, you’ll have the opportunity to make a difference by being a part of the development team that builds future forward products. At Whatfix it’s all about scale. One of the key attributes of this job is that you are required to continuously innovate and apply technology to provide business 360 views of Whatfix customers.
Your Responsibility:
- Define architecture blueprints & take complete technical ownership of high-level design, tech stack, non-functional attributes of one or more components of various platforms
- Design, build, test and deploy cutting edge solutions at scale, impacting millions of customers worldwide
- Work closely with other architects in the team and ensure architectural consistency and technical excellence of the products and platforms
- Work with engineering teams in building high-quality and highly resilient scalable products and platforms at Whatfix
- Work with cross-functional teams to address all technical dependencies
- Drive some of the company-wide tech initiatives striving towards continuous technical excellence of our platforms
- Actively participate in technical innovations, external presentations, technical publications etc.
- Identify right open source tools to deliver product features by performing research, POC/Pilot and/or interacting with various open-source forums
- Deploy and monitor products on Cloud platforms
Our Ideal Candidate:
You have a deep interest and passion for technology. You love writing and owning code and enjoy working with people who will keep challenging you at every stage. You have strong problem solving, analytic, decision-making and excellent communication with interpersonal skills. You are self-driven and motivated with the desire to work in a fast-paced, results-driven agile environment with varied responsibilities.
Your Qualifications:
- 11+ years of experience as an Engineer
- Ability to work with teams in a collaborative and productive manner
- Strong computer science fundamentals in data structures and algorithms
- A self-motivated learner and builder with strong customer focus and obsession with quality
Must-Have:
- Strong Expertise in Backend Technologies- Java, Spring Boot, etc
- Expertise in working with AWS or other cloud infrastructures like Azure or Google Cloud, and using Infrastructure-as-Code tools
- Analyze Functional & Non-Functional requirements with effort estimation and deployment strategies
- Hands-on in Architecting and developing large scale applications
- Hands-on debugging skills
- Design for performance, scalability, fault tolerance and high availability
Good to have:
- Experience in Client-side technologies such as jQuery
- Experience in Front End Technologies is good to have (Javascript, React)
- Experience with Storage systems - NoSQL (Cassandra/MongoDB)
- Leveraging cutting edge technologies like Kubernetes, Docker, etc. to design and build new infrastructure features
Behavioural traits:
- Excellent communication and technical leadership skills
- Can-do attitude to take BIG problems by their horns and solve them
- Ability to inspire others & be a role model and mentor for upcoming engineers in the organization
- Entrepreneurial spirit to conceive ideas, turn challenges into opportunities and build products
We are an equal opportunity employer and value diversity at our company. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status
Requirements & Responsibilities:
- 3+ years of experience developing web applications using J2EE.
- 3+ years of experience in Spring Boot.
- Understanding of MicroServices.
- Experience working with tools like Git, Maven, and AWS.
- Expertise in developing RESTful APIs.
- Experience writing Unit and Integration tests.
- Background working with Linux/UNIX environments.
- Strong working knowledge with RDBMS like MySql, Postgres and NoSQL databases like Mongo
- Passion to stay on top of the latest happenings in the tech world and an attitude to discuss and bring those into play.
- Experience with agile/scrum development
- Strong collaboration and communication skills
- Excellent written and verbal communication skills
Education: Bachelor’s degree in Computer Science, Electrical/Electronic Engineering, Information Technology or another related field or Equivalent
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Mandatory Skills |
Good to Have Skills |
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JDK 1.8 + |
PLSQL |
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Microservices |
Knowledge of SQL Performance Tuning |
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Spring framework |
Experience with Cloud |
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Spring Boot |
Knowledge of Cloud Foundry (Pivotal CF) |
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Java Messaging Services (JMS) / Kafka / Rabbit MQ |
On-call support experience with PagerDuty, Service Now |
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SOAP & REST APIs |
Knowledge of infrastructure monitoring tools like Nagios, New Relic |
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SQL |
Knowledge of Splunk |
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ORM technologies like Hibernate / IBatis / MyBatis |
Experience working with Lean and Extreme Programming (XP) |
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Continuous integration tools like Jenkins/ Bamboo |
NoSQL databases such as MongoDB or any other NoSQL DB |
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Code Quality tools/frameworks like Sonar / PMD |
Automated Integration Testing & Contract Testing |
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Automated Testing. Unit Testing, |
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Agile development methodologies |
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• Participation in the requirements analysis, design, development and testing of applications.
• The candidate is expected to write code himself/herself.
• The candidate is expected to do code review, unit testing and deployment.
• Practical application of design principles with a focus on the user experience, usability, template
designs, cross browser issues and client server concepts.
• Contributes to the development of project estimates, scheduling, and deliverables.
• Works closely with QA team to determine testing requirements to ensure full coverage and best
quality of product.
• There is also the opportunity to mentor and guide junior team members in excelling their jobs.
Java/ Core Java
Frames works: Springboot
Web Services: REST API
Spring stack: Spring integration, Jersey, Spring boot, annotations based Spring configuration, Spring Data
Micro services – Must have
Roles & Responsibility:
Requirement gathering & understanding, effort estimation, technical design, project planning and monitoring in Agile environment
Work proactively & independently to address project requirements, and articulate issues/challenges with enough lead time to address project delivery risks
Providing expertise in technical analysis and solving technical issues during project delivery
Customer interfacing - understand customer requirements, propose technical solutions
Full Software Development Lifecycle (Agile)
Code reviews, test case reviews and ensure code developed meets the requirements
Component Design/ Coding/ Unit Testing/ Debugging / Test Driven Development / Continuous Integration
Carry out adaptive changes necessitated by changes in Business Requirements and Technology
We are looking for Product Developers-Java Technology with hands-on experience in Core java and socket programming with the flair for working on cutting-edge solutions.
Responsibilities and duties:
- Responsible for the development and unit testing of various modules in JAVA and other related technologies.
- Need to do requirement understanding, preparing initial concept and possible architecture design.
- Responsible for feasibility analysis and POC development.
- Ability to understand the product architecture and end-to-end system flow.
- Ability to relate and analyze tasks as per overall product architecture and philosophy.
- Work in Agile SCRUM development model and be able to plan, estimate, execute and deliver quality work as per committed timeline.
- Ability to continuously analyze and contribute to lean processes, quality improvements, product growth, and productivity improvements within the team.
Required Skills:
- JAVA - Core JAVA Concepts, Socket Communication, Multithreading, Exception Handling, Collections Framework, Reflections, I/O, XML, HTML, JSON, YML
- Database version management tools like Liquibase etc.
- Version control system like GIT. Hands-on experience with strong knowledge of branching, merging,
- Build systems like Maven, Gradle, Ant etc.
- Hands-on experience in running development environment on Unix/Linux (Ubuntu, CentOS).
- Cloud computing experience, Integration with third-party devices, experience in writing REST APIs, shell scripting knowledge will be an added advantage.
We are looking for Product Developers-Java Technology with hands-on experience in Core java and socket programming with the flair for working on cutting-edge solutions.
• Build data pipelines for structured/unstructured, real-time/batch, events/synchronous/asynchronous using MQ, Kafka, Steam processing using Java / Python
• Design the Data stores for Big Data systems with expertise in Cassandra, HBase
• Implementation of Indexing and Search using Elasticsearch
• Setup and Deployment of Cassandra, Elasticsearch clusters
Required Qualifications and Competencies:
• Strong hands-on experience with Cassandra, data modeling, data replication, clustering, indexing for handling for large data sets
• Experience with SQL, NoSQL, relational database design, and methods for efficiently retrieving data for Time Series Analytics
• Strong understanding of CQL, Data Modeling in-order to achieve highly performant data access
• Strong experience in data modeling in Cassandra to design efficient storage model to meet variety of business needs
• Should have Elasticsearch skill with significant experience working with large Elasticsearch clusters, cluster performance optimisation, capacity planning, enhancing monitoring capabilities for early issue detection, driving operational readiness and ongoing maintenance
• Strong hands-on experience of programming with Java / Python
• Ability to troubleshoot and investigate stability, performance issues







