
Job Title: Java Developer (Low Latency)
Location: Bangalore
Experience: 7 to 11 Years
Work Location: Cessna Business Park, Wissen office, Bangalore
Work from office in a Hybrid mode (Thrice a week)
Notice Period: Immediate candidates who could join us within 30 days. (Should be serving Notice period - Mandatory)
Required Skills:
8+ years of hands-on experience in Core Java (8 or above).
Strong experience in low latency system development and performance tuning.
Proficiency in multithreading, concurrency, and memory management (GC tuning).
Solid understanding of data structures, algorithms, and design patterns.
Experience with messaging systems (Kafka, RabbitMQ, etc.) and distributed systems.
Familiarity with microservices architecture, REST APIs, and Spring Boot.
Experience in trading or risk systems is required.
Exposure to FX or equity trading applications would be a big plus.

About Wissen Technology
About
The Wissen Group was founded in the year 2000. Wissen Technology, a part of Wissen Group, was established in the year 2015. Wissen Technology is a specialized technology company that delivers high-end consulting for organizations in the Banking & Finance, Telecom, and Healthcare domains.
With offices in US, India, UK, Australia, Mexico, and Canada, we offer 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.
Leveraging our multi-site operations in the USA and India and availability of world-class infrastructure, we offer a combination of on-site, off-site and offshore service models. Our technical competencies, proactive management approach, proven methodologies, committed support and the ability to quickly react to urgent needs make us a valued partner for any kind of Digital Enablement Services, Managed Services, or Business Services.
We believe that the technology and thought leadership that we command in the industry is the direct result of the kind of people we have been able to attract, to form this organization (you are one of them!).
Our workforce consists of 1000+ highly skilled professionals, with leadership and senior management executives who have graduated from Ivy League Universities like MIT, Wharton, IITs, IIMs, and BITS and with rich work experience in some of the biggest companies in the world.
Wissen Technology has been certified as a Great Place to Work®. The technology and thought leadership that the company commands in the industry is the direct result of the kind of people Wissen has been able to attract. Wissen is committed to providing them the best possible opportunities and careers, which extends to providing the best possible experience and value to our clients.
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Overview:
We as a global leader in software consultancy, is hiring a Senior Consultant skilled in backend technologies (Node.js / Java) with strong experience in Temporal.io (BPM/Workflow platform). This role offers an exciting opportunity to work remotely on cutting-edge, scalable enterprise solutions involving modern microservices, BPM workflows, and cloud-native technologies.
As part of our high-performance engineering team, you will contribute to designing, building, and maintaining distributed systems that drive critical client projects. The ideal candidate is hands-on with Temporal.io, backend development (Node.js or Java), and familiar with modern cloud, DevOps, and automation practices.
Key Roles and Responsibilities:
- Design, develop, and maintain backend services using Node.js (NestJS) or Java integrated with Temporal.io workflow engine.
- Model and implement business processes using BPMN workflows, including managing external task workers, Operate, and Tasklist in Temporal.
- Build and manage RESTful APIs and microservices that are scalable, secure, and maintainable.
- Collaborate closely with cross-functional teams including frontend engineers, DevOps, cloud architects, and QA.
- Implement secure authentication and authorization flows using Keycloak IAM.
- Develop and optimize database interactions with PostgreSQL in a process-driven architecture.
- Utilize Azure services such as Blob Storage, API Gateway, and AKS for cloud infrastructure.
- Automate cloud infrastructure provisioning using Terraform and manage containerized deployments with Kubernetes.
- Ensure high-quality deliverables by implementing unit and integration tests using Jest, and documenting APIs with Swagger/Postman/Insomnia.
- Participate in peer code reviews, technical discussions, and contribute to architectural decisions.
- Maintain and improve CI/CD pipelines (Azure DevOps/GitHub Actions desirable).
Technical Requirements:
Must-Have Skills:
- Temporal.io BPM Platform:
- BPMN modeling, external task workers, Operate, Tasklist (Hands-on experience mandatory)
- Backend Development:
- Node.js (with TypeScript, NestJS framework) OR Java (Strong proficiency)
- Frontend Exposure (Nice-to-Have):
- Modern React.js (v17+) with TypeScript (component-driven design)
- Cloud & Infrastructure:
- Experience with Azure Services: Blob Storage, API Gateway, AKS
- Infrastructure automation using Terraform
- Container orchestration via Kubernetes
- Database:
- Strong understanding of PostgreSQL and its role in process-driven applications
- Authentication & Authorization:
- Experience integrating Keycloak IAM for user role and token-based authorization
- Testing & API Management:
- Testing with Jest
- API documentation and testing using Swagger / Postman / Insomnia (OpenAPI)
- Version Control:
- Git and GitFlow branching strategy
Nice-to-Have / Bonus Skills:
- Blockchain integration for secure KYC/identity flows
- Building custom Camunda Connectors or writing exporter plugins
- Experience with Azure DevOps or GitHub Actions for CI/CD automation
- Authorization enforcement using identity-based access patterns
Additional Information:
- Work Mode: Remote (occasional office visits for team meetings)



Responsibilities:
• Take on complex problems that span multiple components and teams.
• Independently own one or more multiple modules, which include: requirement analysis, design, development, maintenance & support
• Write extensive, efficient code to address complex modules that handle the interaction between multiple components.
• Rapidly iterate to add new functionalities and solves complex problems with simple and intuitive solutions
• Produce architecture with clean interfaces, that are efficient and scalable
• Participate and contribute to architectural discussions
• Solve production issues. Investigate and provide solutions to minimize the business impact due to the outage
• Continuously improve performance metrics of modules you own.
• Collaborate effectively across teams to solve problems, execute and deliver results
Requirements:
• Experience: 3+ years
• A Bachelor's or Master's Degree in Computer Science
• Software engineering and product delivery experience, with a strong background in algorithms
• Experience in architecting & building real-time, large-scale e-commerce applications
• Experience with high-performance websites catering to millions of daily traffic is a plus
• Excellent command over Data Structures and Algorithms
• Experience with web technologies, Go/Java/Python
• Language: GO or Python
• Strong expertise in DS and Algo
• Strong leadership skills - have experience mentoring, building products from scratch or incumbent in design and architecture.
• Have worked in the scaling of the system right from scratch.
• Someone worked in small user base to a large user base and wrote optimized code
• Both HLD and LLD

Essential Duties and Responsibilities
- Contribute in all phases of the development lifecycle
- Write well designed, testable, efficient code
- Ensure designs are in compliance with specifications
- Prepare and produce releases of software components
- Support continuous improvement by investigating alternatives and technologies and presenting these for architectural review
Adhere to Experian policies and procedures
- Work under the Experian behaviors and values
- Facilitate and drive performance management processes
- Champion a culture where the fair treatment of customers is at the heart of the Experian business
- Ensure that by leading by example, you adhere to all regulatory requirements and apply appropriate controls in the interests of customers
- Through the adoption of a top down approach, demonstrate a culture where all our people understand their regulatory obligations, including what the fair treatment of customer’s means to them and our organization
Qualifications
- Should have years of experience in developing and supporting Java/J2EE based application
- Should provide consultation on new development, enhancements, bug fixes and deployment and involve in complete product life cycle
- Should undertake any development/coding activities that might require during project life cycle
- Should have good core java concept like Collection, Multi-Threading JDBC File handling etc.
- Should have experience in Spring, Spring Boot, JPA, Hibernate
- Should have experience in Web service testing tool like SOAP UI, PostMan
- Should have working experience with database like Oracle, MSSQL Server, MySQL
- Should have enriched experience in client interfacing
- Should have good communication skills
Technologies
- Java, Java EE
- Spring, Spring Boot, JPA, Hibernate
- Java Multi-Threading
- Web service using SOAP/REST
- JIRA, Confluence, Bitbucket
- Oracle, SQL Server, MySQL
- WebLogic, Tomcat , JBOSS

Description:
For over 10 years, Zscaler has been disrupting and transforming the security industry. Our 100% purpose-built cloud platform delivers the entire gateway security stack as a service through 150 global data centers to securely connect users to their applications, regardless of device, location, or network in over 185 countries protecting over 3,900 companies and have detected 100 Million threats/day.
We work in a fast-paced, dynamic and make it happen culture. Our people are some of the brightest and passionate in the industry that thrives on being the first to solve problems. We are always looking to hire highly passionate, collaborative and humble people that want to make a difference.
About the role :
This is a senior staff backend engineer role in the engineering team that designs, implements and maintains our state of the art product IllusionBLACK. The team is responsible for designing and implementing secure, highly performant and maintainable product.
Responsibilities:
- Architect, develop and maintain high performance, fault tolerant and scalable cloud hosted service using NodeJS
- End to end responsibility to continuously create and monitor the services you build
- Help design reusable and clean API's for our frontend React app
- Guide team members with handling complex issues
- You will also be responsible for database schema design and development of migration scripts
- Experiment with new technologies and ideas and help shape our stack and processes
Requirement:
- 10+ years professional SW development experience
- All our production applications are built with either Typescript or Python. You must have a strong understanding of NodeJS express apps written in Typescript and ES6
- Must have good experience with Python
- Solid experience with databases is a must. We use and love Postgres here at Smokescreen
- You should be able to design a complex database SQL schema normalized to 3NF on the back of a napkin at 3am in the morning
- Deep understanding and working knowledge of Redis cache
- Experience with Solr or Elasticsearch is a must. We use Solr for our event analytics exclusively
- Experience with AWS, Azure or GCP is a plus. We have a large distributed application running on AWS
- Experience with Docker/Swarm is a plus
- Experience in some stream processing platforms like Kafka/Redis stream is a plus
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


-A premium college gratduate is required.
-Strong experience in Data Structures and Algorithms.
-Should have good understanding of databases and storage fundamentals.
Job brief
As an Application Developer at Bridgei2i, you will participate in development and implementation of custom projects and products of Bridgei2i in Business Intelligence Applications. The role includes working closely with lead, testers, project managers, designers.
You are expected to develop prototypes of the system design and work with lead, backend developers, testers and project managers as appropriate throughout development cycle. You will be developing bug free, maintainable, scalable web applications.
Requirements
- Working knowledge in JavaScript, CSS and HTML, Java/J2EE
- Experience of 1 + year's atleast in application development
- Possess good knowledge of object-oriented design and development (OOA/OOD), algorithm and data structure
- Basic knowledge of web services (SOAP & Restful)
- Basic knowledge of relation database, SQL
- Knowledge in any of one of UI frameworks (AngularJS, ReactJS, NPM, node.js, JQuery) , or Spring or Struts
- Curiosity and attention to detail
- Adaptable to changing technology and restrictions, design challenges, deadlines, and project requirements



