

Designing and developing high-volume, low-latency applications for
critical systems and delivering high-availability and performance
• Contributing in all phases of the development lifecycle
• Writing well designed, testable, efficient code
• Test cases should be upto the mark
• Performance tuning knowledge is a must. Experience is an added advantage.
• In Backend – fundamentals of all languages is a must• Good hands-on software development experience with proven working experience
in Python development
• Expert in Python, with knowledge of at least one Python web framework (such
as Django, Flask)
• Familiarity with some ORM (Object Relational Mapper) libraries
• Able to integrate multiple data sources and databases into one system
• Understanding of the threading limitations of Python, and multi-process
architecture
• Strong unit test and debugging skills
• Basic understanding of front-end technologies, such as JavaScript, HTML5, and
CSS3
• Understanding of memory model/GC from performance point of view.

About 91social
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Experience: 10 to 20 years
Location: Bangalore
We are seeking a passionate and skilled Java Technical Lead with 8 to 12 years of experience in product
development and team leadership. As a key member of our global software development team, you
will be responsible not only for solving complex technical problems but also for leading and mentoring
engineers, driving the design of scalable systems, and ensuring high quality delivery across projects.
Experience in leading development teams, managing end
to end project delivery, and working directly
with clients to translate business problems into technical solutions is essential.
Key Responsibilities:
Lead the design, development, testing, a nd deployment of scalable Java applications.
Break down client/business problems and define clear technical tasks for the team.
Provide technical guidance and mentorship to team members throughout the development
lifecycle.
Collaborate with cross functiona l teams to deliver new features and enhancements.
Participate in and lead code reviews, ensuring adherence to best practices and maintaining
code quality.
Own and drive the architecture and design discussions for new modules and systems.
Ensure timely deli very of project milestones and proactively resolve technical blockers.
Evaluate and integrate new tools and technologies to improve efficiency and product quality.
Serve as the primary technical point of contact for your team and stakeholders.
Required Ski
lls:
8+ years of hands on experience in Java development.
Proven experience in building products or applications from scratch (not just
maintenance/support).
Strong object oriented programming skills and hands on experience with Spring, Spring Boot,
Hibernate, etc.
Solid understanding of system architecture, design patterns, and microservices architecture.
Experience in leading small to mid sized teams and managing technical delivery.
Proficiency in data structures, algorithms, and performance optimiz ation.
Strong communication and stakeholder management skills.
Experience working with RESTful APIs and cloud platforms such as AWS, Azure, or GCP is a
plus.
Good understanding of SQL and NoSQL databases.
Strong debugging, troubleshooting, and problemStrong debugging, troubleshooting, and problem--resoresolution skills.lution skills.
Desired Attributes:
Desired Attributes: Excellent problemExcellent problem--solving and decisionsolving and decision--making skills.making skills. High levels of ownership, accountability, and selfHigh levels of ownership, accountability, and self--drive.drive. Strong team leadership and collaboration abilities.Strong team leadership and collaboration abilities. Proactive attitude and commitment to engineering excellenProactive attitude and commitment to engineering excellence.ce. Recognitions or awards in previous roles are a big plus.Recognitions or awards in previous roles are a big plus. Passion for continuous learning, coaching others, and improving team capabilities.Passion for continuous learning, coaching others, and improving team capabilities.
About Wissen Technology:
About Wissen Technology:
Wissen Technology is a niche global consulting and solutions company that brings unpa
Wissen Technology is a niche global consulting and solutions company that brings unparalleled domain ralleled domain expertise in Banking and Finance, Telecom and Startups. Wissen Technology is a part of Wissen Group 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 and was established in the year 2015. Wissen has offices in the US, India, UK, Australia, Mexico, and Canada, with bestCanada, with best--inin--class infrastructclass infrastructure and development facilities. Wissen has successfully delivered ure and development facilities. Wissen has successfully delivered projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall projects worth $1 Billion for more than 25 of the Fortune 500 companies. The Wissen Group overall includes more than 4000 highly skilled professionals.includes more than 4000 highly skilled professionals.
Wissen Technology provides exceptional
Wissen Technology provides exceptional value in mission critical projects for its clients, through value in mission critical projects for its clients, through thought leadership, ownership, and assured onthought leadership, ownership, and assured on--time deliveries that are always ‘first time right’.time deliveries that are always ‘first time right’.
Our team consists of 1500+ highly skilled professionals, with leadership and senior management
Our team consists of 1500+ highly skilled professionals, with leadership and senior management eexecutives who have graduated from Ivy League Universities like Wharton, MIT, IITs, IIMs, and NITs and xecutives 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.with rich work experience in some of the biggest companies in the world.
Wissen Technology offers an array of services including Application Development,
Wissen Technology offers an array of services including Application Development, Artificial Intelligence Artificial Intelligence & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process & Machine Learning, Big Data & Analytics, Visualization & Business Intelligence, Robotic Process Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.Automation, Cloud, Mobility, Agile & DevOps, Quality Assurance & Test Automation.
We have been certified as a
We have been certified as a Great Place to WorkGreat Place to Work®® for two consecutive years (2020for two consecutive years (2020--2022) and voted 2022) and voted as the Top 20 AI/ML vendor as the Top 20 AI/ML vendor by CIO Insider.by CIO Insider.
Software Engineer for Java
- Understanding of object-oriented programming and design patterns
- Strong with Java programming and Java Servlets.
- Proficient in API design and development using RESTful services (JSON, XML etc)
- Source code management using GIT
- Knowledge in Mongo DB and SQL or any equivalent No-SQL and Relational databases.
- Experience working with Bootstrap, JavaScript, jQuery & HTML would be preferred.
- Experience in Node JS would be an added advantage.

•Degree/Master Degree in Engineering/computer or equivalent subject
•Good Knowledge of Java (Core Java, XML, Java Script, UI5 etc).
•Experience of working in Java on cloud products would be an advantage.
•Excellent analytical skills
•Effectiveness in problem-solving, results-orientation
•Very good powers of comprehension, high quality commitment and self-motivating working style
•Ability to quickly acquire understanding in new areas
•Good communication skills
•Team spirit and ability to work with virtual and local teams
•Ability to present complex information in a clear and appealing manner
EXPECTATIONS AND TASKS
•Analysis, modeling, design, implementation of business requirements for the SuccessFactors
Onboarding Localization & Legal Compliance
•Responsible for development focusing on coding. Additional responsibility will entail testing and
quality assurance as per team backlog.
•Demonstrate full responsibility for accepted tasks and deliver with a high level of quality, speed,
reliability and efficiency.
•Maintenance and corrections to keep solution up-to-date in accordance with customer feedback
WORK EXPERIENCE
•2-3 years’ of coding experience in Java (Core Java, XML, Java Script, UI5)
•Experience in HCM products is preferred
•Experience in working on cloud products would be an advantage.

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
Roles & Responsibilities
As a member of our fast-growing engineering team, your responsibility will be to get involved in day-to-day development operations and solve complex problems of digitization to meet the demands of business.
To be successful, you must have a self-driven mindset, go getter attitude.
The responsibilities include:
- Writing the clean quality code & Understanding functional requirements thoroughly and analyzing the requirements in the context of the product
- Envisioning the overall solution for defined functional and non-functional requirements, and being able to define technologies, patterns and frameworks
- Determining and implementing design methodologies and tool sets
- Enabling application development by coordinating requirements, schedules, and activities
- Being able to lead/support UAT and production roll outs
- Creating, understanding and validating estimated effort for given module/task, and being able to justify it
- Addressing issues promptly, responding positively to setbacks and challenges with a mindset of continuous improvement
- Giving constructive feedback to the team members and setting clear expectations
- Helping the team in troubleshooting and resolving complex bugs
- Coming up with solutions to any issue that is raised during code/design review and being able to justify the decision taken
- Carrying out POCs to make sure that suggested design/technologies meet the requirements
- Carrying out DevOps activities which includes creating Jenkins pipeline
Key Skills
Should possess hands-on full life-cycle development experience (architect, design, code, test, release) be comfortable around both front-end and back-end coding languages, client/server-side development frameworks and third-party libraries.
- Should be strong in data structures and algorithms. Solid understanding of object-oriented programming
- Work with cutting edge technologies like Java 8, Scala, React, Akka, Docker, Puppet, and Salt
- Hands-on knowledge of Spring core, MVC, JPA. Working knowledge of Spring Boot
- Should have strong hands-on on one of the JavaScript frameworks: jQuery, AngularJS, ReactJS, and Vue.js.
- Willing to working with latest Cloud and Container technologies like AWS
- Experience with both external and embedded databases. NoSQL DB experience is good to have
- Implementing unit testing using frameworks like JUnit, Mockito, etc.
- Proficient understanding of code versioning tools, such as Git
- Familiarity with Maven (Other building tools Ant and Gradle are good to have)
- Familiarity with continuous integration
- Good understanding of Agile practices


Job Description :-
- Have intermediate/advanced knowledge of Python.
- Hands-on experience with OOP in Python. Flask/Django framework, ORM with MySQL, MongoDB is a plus.
- Must have experience of writing shell scripts and configuration files. Should be proficient in bash.
- Should have excellent Linux administration capabilities.
- Working experience of SCM. Git is preferred.
- Should have knowledge of the basics of networking in Linux, and computer networks in general.
- Experience in engineering practices such as code refactoring, design patterns, design driven development, Continuous Integration.
- Understanding of Architecture of OpenStack/Kubernetes and good knowledge of standard client interfaces is a plus.
- Code contributed to OpenStack/Kubernetes community will be plus.
- Understanding of NFV and SDN domain will be plus.
Must have skills : Experience with Core Java, Microservices, Oracle Database and SpringBoot.
Roles & Responsibility :
- Build new decentralized microservices based on decoupled Kafka architecture
- Thorough understanding of fundamentals including OOP, Design Patterns and Data Structures
- Good knowledge of design principles
- Produce clean, efficient code based on specifications
- Recommend and implement improvements
- Has proven ability to work independently or with minimal supervision
- Drive design discussions while also working with architects if a need arises
Required Skills :
- Experience building software applications professionally using Java.
- Strong understanding of troubleshooting methodologies and root cause analysis
Soft skills required :
- Excellent interpersonal and written communication skills.
- Able to pre-empt, identify and resolve problems that are non-routine or lacking in definition
- Ability to define, implement and work to a schedule
- Good time management skills.
- Attention to detail. Able to work with little or no supervision
- Ability to work with team members across the globe
- Experience with Core Java, Angular and SpringBoot is a plus.
Educational Qualifications : B.E./ ME (CS/EE) / MCA or equivalent higher-level degree
Location: Hyderabad, India
Nisum is a leading global digital commerce firm headquartered in California, with services spanning digital strategy and transformation, insights and analytics, blockchain, business agility, and custom software development. Founded in 2000 with the customer-centric motto “Building Success Together®,” Nisum has grown to over 1,400 professionals across the United States, Chile, India, and Pakistan. A preferred advisor to leading Fortune 500 brands, Nisum enables clients to achieve direct business growth by building the advanced technology they need to reach end customers in today’s world, with immersive and seamless experiences across digital and physical channels.
What You’ll Do
Coding in Java8, Spring, Microservices, WebFlux/Reactive Programing, Rest services, Kafka, PCF, Azure, Spring Cloud Config and NoSQL technologies.
Solve technical problems using cutting-edge technologies and best practices.
Ensure code meets the required development standards and is optimized for performance.
Unit testing for each line of new code introduced (JUnit/Mockito)
Peer code review process using GIT pull requests and Crucible (for SVN)
Propose multiple solutions to a problem, show how one option is better than another.
Ensure all aspects of technical design are correctly incorporated.
Contribute in research and implementing POC’s as required.
Collaborating with onsite team in scrum ceremonies.
Who you are
Senior developer using technical skills in Java8, J2EE, Spring boot(rest services), Web Services(Rest & SOAP), WebFlux, Spring Cloud Config, Maven/Gradle, JUNIT/TestNG, Mockito/JMock/EasyMock, JIRA, XML, JSON, EhCache/MemCache/Redis with skills in JMS, Kafka
Experience with hands on any one of the cloud platforms like PCF, Azure
Need hands on skills using NoSQL databases (Cassandra, MongoDB), SQL(Oracle/DB2/MySQL)
Experience with UI development skills to the level of debugging and enhancements.
Experience with expertise in code quality and coding standards.
Need to applying different design patterns, especially GoF, J2EE and Integration design patterns.
Making sure implementing unit testing for each line of new code introduced (JUnit/Mockito).
Ensuring the code meets the required development standards and is optimized for performance.
Education
Bachelor’s / Master’s degree in specific technical fields like computer science, math, statistics preferred; or equivalent practical experience.

Ability to communicate across levels with excellent verbal and written communication skills
To be able to work in teams and collaborate with others to clarify requirements
To be able to assist in documenting requirements as well as resolve conflicts or ambiguities
- 2+ years of experience in Java Development with sound knowledge of core Java
- Should have strong hands on experience with developing web applications using Servlets and JSP, Spring, Hibernate, Web Services, HTML, JavaScript
- Should have experience of working on Tomcat/Glassfish
- Experience of Google App Engine or AWS will be added advantage
- Strong knowledge of OOAD
- Comfortable working on Linux/Unix
- Good communication skills and good organization
- Willingness to work in a team environment, as well as
- Willingness to learn new
Responsibilities:
- Write production quality code in Java, J2EE, and Spring
- Adhere to software development and source control processes, git is added Advantage
- Design, build, configure, test, and document production quality software on an iterative
- Participate in design and implementation of new software.
- Work closely with users, technical leads, project managers, and other cross-functional development
- Execute on the provided design. Active coding in key technologies is required for this development position and includes: Java/J2EE, Tomcat, Web Services, REST, and spring, Hibernate/Ibatis, XML, UNIX and
- As part of the software development process you will need to create, review, and maintain all required technical documentation related to assigned software to ensure supportability and reuse.
- This individual must develop software using disciplined software development processes, adhering to team/company standards and software best practice guidelines, and corporate policies.

