Java Developer

This Is NOT a Typical Java Role If your experience is mostly CRUD APIs, controller wiring, or shallow service layers — this role is not for you. We are looking for a top tier backend engineer who thrives on: 

* Designing complex algorithms 

* Building high-performance, memory-efficient systems 

* Owning deep backend logic that actually moves the needle 

You will work close to the core engine of the product, not the edges.

What You’ll Be Trusted With 

* Architect and build backend systems that must perform under load 

* Design and implement custom algorithms for real-world, non-trivial problems 

* Solve performance bottlenecks involving CPU, memory, I/O, and concurrency 

* Build backend services where latency, throughput, and correctness matter 

* Own document & PDF processing pipelines end-to-end:     

-Composition     

-Rendering     

-Optimization     

- High-volume generation 

* Make hard technical decisions and stand by them

Non-Negotiable Skills 

* Exceptional Java expertise (Core Java, Spring Boot, Java 8+) 

* Strong command over:     

• Data structures & algorithms 
• Multithreading & concurrency models     
• JVM internals & memory management 

* Proven experience building custom algorithms (this will be evaluated) 

* Deep backend engineering experience with Spring / Spring Boot 

* Strong understanding of:     

• API design principles     
• Fault tolerance & resilience     
•  Performance tuning & profiling 

* Ability to reason about time complexity, space complexity, and trade-offs 

* Strong database fundamentals (query optimization, indexing, transactions) 

* Experience with message brokers (ActiveMQ, Kafka, RabbitMQ) 

* Exposure to Kubernetes-based deployments or large-scale microservices 

Interview Focus (Be Prepared) 

* Algorithm design & problem solving 

* Deep Java fundamentals 

* System design discussions (backend-heavy) 

* Performance tuning scenarios 

* Real-world debugging and optimization challenges

Java Developer – Job Description  

Wissen Technology is now hiring 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 consultancy.  

Required Skills:  

• Exp. - 2 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 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 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. 

Greetings!

Wissen Technology is hiring for Java developers/Lead.

Required Skillset

• 6+ years of industrial experience
• Java and related frameworks.
• Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
• Exposure on Fintech domain is mandatory
• Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS
• Good knowledge of multi-threading and high volume server side development
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.

Company Profile:

Company Name : Wissen Technology

Group of companies in India : Wissen Technology & Wissen Infotech

Work Location - Bangalore

Website : www.wissen.com

Wissen Thought leadership : https://www.wissen.com/articles/

LinkedIn: https://www.linkedin.com/company/wissen-technology

• JAVA Microservices with AWS needed
• Provide solution architecture & design involving Cloud and DevOps
• Develop new microservices in a cloud-native way.
• Ensure the unit testing and code coverage are achieved as per the agreed percentage.
• Build reusable code and libraries for future use.
• Optimize application for maximum performance and scalability.
• Collaborate, and coordinate with team members and key stakeholders.
• Communicate effectively with different stakeholders.
• Ensure best practices & standards are followed during SDLC.
• Takes ownership of the whole solution from a technical perspective and ensures adherence to defined Architecture & Design.
• Ensures the latest technology standards, and guidelines are utilized for development.
• Performs consistent & adequate code reviews & feedback to the team.
• Training and induction of new resources on the projects.

Skills and Qualifications

• Deep understanding of OOPs and OOAD.
• Expert and hands-on in Java JEE and Spring framework, Spring Boot.
• Should have experience with RESTful web services and API standards.
• Should know various integration patterns in distributed environments.
• Working knowledge of microservice architecture and different design patterns.
• Hands-on in writing unit tests with Mockito and code coverage tools.
• Hands-on data modeling (Logical physical).
• Knowledge of RDBMS, SQL and any ORM framework (JPA, Hibernate etc.)
• Should know Event-driven and asynchronous programming using message broker.
• Should know about cloud IaaS, PaaS, SaaS and Serverless models of any cloud provider (AWS, Azure, GCP), preferably AWS.
• Knowledge of JavaScript frameworks like NodeJS (For the Backend) and Angular React (For Frontend) will be added advantage.
• Good to have DevOps related technologies like Container (Docker), Container Orchestrator (Kubernetes EKS)
• Excellent in communication

You’ll be our: Application Developer 

You’ll be based at: IBC Knowledge Park, Bengaluru

You’ll be Aligned with: Application Development Lead 

You’ll be the member of:VehicleSoftware Team 

What you’ll do at Ather:

• You will be developing the various Applications for the cloud to process data connecting with the vehicle 

• You shall work with the Lead and product team to define and deliver features. 

• Be part of the Agile team, to define Sprint work content definition. 

• Work with cross functional teams to drive overall feature delivery. 

• Be part of the initiatives that achieve the functional requirements of the team. Explore technical feasibility of solutions, propose and evaluate tech stacks. 

• Performance tuning and benchmarking of the features 

Here’s what we are looking for: 

• Strong knowledge and Hands on experience with Nodejs, RestAPI, Java Script, Java Development experience in cloud based infrastructure 

• Strong fundamentals in any fullstack of your choice, OOPS concepts, Google Cloud Platform. Knowledge of Java, React, React Native, Android Native , HTML5, Firebase and Go Programming is a plus. 

• Knowledge on CI/CD pipelines, JIRA, UML, Static Code Analysis tools and Unit test framework is required 

• Knowledge on the S/W communication protocols like gRPC, HTTP, MQTT is a plus Cross platform development experience would be needed. 

• Knowledge of Cloud Based solutions would be a plus. 

• App development for a product which is beyond a mobile platform would be a plus. Experience with Telematics/Infotainment projects would be a great advantage. 

• Strong experience with Agile methodology, along with tools such as JIRA, Confluence. 

• Flashing and debugging tools experience is a plus.

You bring to Ather: 

• Bachelor’s/Master’s in computer science or any other equivalent degree

• Experience level of 6 to 9 years of experience in very large-scale applications.
• Strong problem-solving skills, computer science fundamentals, data structures and
• algorithms their space & time complexities
• Design (LLD & HLD) and architect technical solutions for the business problems of a very large-scale portal.
• Strong hands-on and practical working experience with Java as the programming language
• Strong debugging skills - Code, Logs, DB, JVM
• Excellent coding skills - should be able to convert design into code fluently.
• Hands-on experience working with Databases and Linux platform