Experience in Java 8
Experience in frameworks - Spring, Hibernate
Experience in Design Patterns

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ompany Name – Wissen Technology
Group of companies in India – Wissen Technology & Wissen Infotech
Job Title: Java Developer
Experience range:- 3-6 Years
Location:- Chennai
Face 2 Face Drive : Friday & Saturday (11th & 12th July 2025)
· Strong written/verbal communication skills
· Minimum 3+Years of Core Java Programming with Collections Framework, Concurrent Programming, Multi-threading (Good knowledge in Executor service, Fork joins pool and other threading concepts)
· Good knowledge of the JVM with an understanding of performance and memory optimization.
- Good experience in Spring boot.
- Extensive and expert programming experience in JAVA programming language (strong OO skills preferred).
- Excellent knowledge on collections like, Array List, Vector, LinkedList, HashMap, Hash Table, HashSet is mandate.
- Exercised exemplary development practices including design specification, coding standards, unit testing, and code-reviews.
- Expert level understanding of Object-Oriented Concepts and Data Structures
- Good experience in Database (Sybase, Oracle or SQL Server) like indexing (clustered, non-clustered), hashing, segmenting, data types like clob / blob, views (materialized), replication, constraints, functions, triggers, procedures etc.
About - The company is an online discovery platform that offers direct-to-home product trials for D2C brands.
Location- Bangalore
Series- B
Responsibilities
- Lead simultaneous development for multiple business verticals.Design & develop highly scalable, reliable, secure, and fault-tolerant systems.Ensure that exceptional standards are maintained in all aspects of engineering.Collaborate with other engineering teams to learn and share best practices.Take ownership of technical performance metrics and strive actively to improve them.Mentors junior members of the team and contributes to code reviews.
Requirements
- A passion to solve tough engineering/data challenges.Be well versed with cloud computing platforms AWS/GCPExperience with SQL technologies (MySQL,PostgreSQL)Experience working with NoSQL technologies (MongoDB,ElasticSearch)Excellent Programming skills in Python/Java/GoLangBig Data streaming services (Kinesis ,Kafka ,RabbitMQ)Distributed cache systems (Redis ,Memcache)Advanced data solutions (BigQuery, RedShift, DynamoDB, Cassandra)Automated testing frameworks and CI/CD pipelinesInfrastructure orchestration(Docker/Kubernetes/Nginx)Cloud-native tech like Lambda,ASG,CDN,ELB,SNS/SQS,S3 Route53 SES
Greetings!!
Wissen Technology is hiring for Architect role.
Required:
10+ years of experience in development.
Exposure on any of the backend tech stack.
Must have experience on working with Equity Swaps.
Must have experience on working with Banks.
Open to work from office on Hybrid mode.
Open to work from Bangalore location.
Company Profile:
Website : www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
https://www.youtube.com/watch?v=H_rLmHvlOKg
Employee Speak: https://www.ambitionbox.com/overview/wissen-technology-overview
LinkedIn: https://www.linkedin.com/company/wissen-technology
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.
•Hands on experience in Object oriented programming
•Hands on experience in Java, SpringBoot (min 2 years) or kafka or Cassandra or MongoDB
•Experience with developing/enhancing applications connecting to different Databases : Oracle/MySQL/Cassandra/MongoDB
•Strong knowledge of common Data structures and algorithms and when to use them.
•Experience in Xpath or XML or REST or JSON or protobuff
• Experience with software version control (such as git)
•Experience in working in an agile environment such as Scrum.
Preferable:
•Experience in public cloud PaaS (AWS, GCP, Azure)
•Real time stream data handling (Kafka, Kinesis
Job Responsibilities:
* Design, build, and maintain efficient, reusable, and reliable Java code
* Ensure the best possible performance, quality, and responsiveness of the applications
* Identify bottlenecks and bugs, and devise solutions to these problems
* Help maintain code quality, organization, and automatization
* Prepare the technical design of complex technology components
Mandatory Skills:
* Proficient in Java (JDK 1.7) or above JDK 8 preferable, with a good knowledge of its ecosystems with a knack for writing clean, readable Java code, writing reusable Java libraries along with knowledge of concurrency patterns in Java
* Solid understanding of object-oriented programming along with various design and architectural patterns
* Hands on experience with Spring, Spring Boot, JUnit
* Familiarity with concepts of MVC, Microservices, RESTful
Qualification & Experience
- A Bachelor’s / Master’s degree in Computer Science (or equivalent experience)
- M-Tech or advanced degree a plus Hackathon participation and accolades are a plus.
- Total Exp- 6-8 years with minimum 6+ years of professional software development experience on Java / J2EE
- Full SDLC experience (Requirements Gathering, Architecture, System Design, Development, QA, etc…)
- Experience with Spring Boot/Spring Framework ( IOP/DI, REST, Security)
- Experience with SOAP / REST web services Knowledge of SQL
- Knowledge of No SQL concepts.
- Work experience on Apache SOLR , REDIS / Relevant Cache Manager , Lucene , Elastic Search .
- Mongo DB & Postgres DB / RDBMS is desirable
- Understanding concepts of CDN & Content Management
- Must have worked on any one messaging solutions like Kafka or RabbitMQ
- Bonus Points for Micro Service Design and Development experience
- Used Agile methodology / Scrum
- 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
Responsibilities:
-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-oriented Java.
-The customized solutions that you will be architecting and developing will also require knowledge and experience with Spring / Spring Boot / Hibernate / ORM Concepts, SOAP / REST, and SQL / No 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.
➢ Design and develop core server side components for our consumer facing site
as well as for fulfillment and inventory logistics
➢ Prototype new ideas
Experience / Skills Required:
➢ B.Tech or advanced degree in Computer Science with 8-12 years of progressive industry
experience
➢ Strong experience with Python development and Django framework or NodeJS required
➢ Strong experience with JavaScript , HTML, CSS, AJAX and JSON
➢ Strong experience with building reusable server components
➢ Strong experience with WebServices, XML, REST interfaces
➢ Strong experience with object oriented programming
➢ Strong experience with backend performance optimization and algorithms
➢ Strong experience with SQL, RDBMS, data modeling and MySQL, Oracle or other RDBMS
➢ Strong leadership / technology mentoring skills a must. Ability to do code and design reviews is a
key part of this role.
➢ Experience with Microservices / Distributed event based architectures desired.
➢ Deep experience with Linux based development and deployment architectures.
➢ Experience with database query tuning.
➢ Experience with cloud platforms such as AWS is a great plus
➢ Experience with frameworks such as Angular / React JS is a great plus
➢ Awareness of and experience with reactive programming is a plus
➢ Experience with Ecommerce/Consumer facing applications serving a large volume of users is a
great plus.
➢ Exposure to technologies like Kafka, Redis, Spark, Kinesis, Solr, ElasticSearch etc is a plus.
➢ Experience with NoSQL or BigData is a great plus
➢ Hands on Full Stack experience desired.
➢ Must be adept at experimenting with new technologies
➢ Must have excellent communication (verbal & written), interpersonal, leadership, and problem
solving skills
➢ Must be able to work independently and enjoy working at a fast paced start-up environmen
As a Principal Software Engineer with Treebo, you’ll have the opportunity to own and deliver
product(s) that will help Treebo accomplish its goals. The engineering team is at the fore front
of implementing new technologies in order to gain a dominant foothold in the Hospitality
industry. You will design and deploy scalable, high performance, multi-tenant systems. You will
interact with other engineering teams and contribute back to the open source tech community.
Responsibilities
● Owns team's output and E2E definition and execution of SDLC. Drives sprint
planning, estimates & prioritizes tasks, Keeps key stakeholders updated on
progress, milestones and any potential slippages.
● Identifies pitfalls across code bases proactively. Writes model code that is looked
up to. Understands internals of programming languages & runtimes. Creates
common reusable components / libraries- Uses advanced data structures.
● Designs API contracts between large systems with end to end service design and
active leadership towards long term sustainability including versioning, complex
migration plans, impact analysis across products.
● Owns NFRs and pushes the envelop on performance, scalability and high availability
with cognisance towards cost of infra. Drives tech stack selection independently,
mentors junior engineers. Evangelises of generic platform building across the
organisation.
● Troubleshoots unseen issues across codebases. Solves large end to end cross
cutting problems with elegant solutions with an eye on long term sustainability.
● Partners with and influences product managers on “how”. Leads the pack on hiring
and evangalizes steeper hiring standards towards building A+ team. Represents
treebo on external platform / conferences.
Qualifications:
Bachelor's Degree in Computer Science or similar discipline
● 7+ years relevant work experience in software engineering while leading teams.
● Proficiency in more than one modern programming language such as
Python/Java/C++ & associated tech stack to write maintainable, scalable,
unit-tested code
● Experience in building complex software systems that have been successfully
delivered
● Deep understanding of design patterns, optimizations, deployments with a Strong
object oriented design skills
● Experience mentoring other software engineers.
● Experience with full life cycle development in any programming language










