
JOB DESCRIPTION
Experience: 3-5 years
Location: Bangalore
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. - 3-5 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
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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Job Description:
Role: Senior Backend Developer
Mode of work: WFO
Supercharge Your Career as a Senior Backend Developer at Technoidentity!
Are you ready to solve people challenges that fuel business growth? At Technoidentity, we’re a Data+AI product engineering company building cutting-edge solutions in the FinTech domain for over 13 years—and we’re expanding globally. It’s the perfect time to join our team of tech innovators and leave your mark!
What’s in it for You?
We are looking for a highly motivated Senior Backend Developer with 4-6 years of experience to join our team. The ideal candidate will have strong backend development expertise, a deep understanding of distributed systems, and a high sense of ownership. This role requires working independently on POCs and projects while also mentoring junior team members and enabling scalable delivery.
What Will You Be Doing?
- Design, develop, and maintain scalable backend systems and services.
- Work independently on project implementations and backend solution development.
- Implement distributed architecture design patterns to build reliable and high-performance systems.
- Collaborate with cross-functional teams to deliver robust backend solutions.
- Guide and mentor junior developers, ensuring quality implementation and adherence to best practices.
- Participate in system design discussions, code reviews, and technical decision-making.
- Ensure high ownership in delivering solutions aligned with project timelines and goals.
What Makes You the Perfect Fit?
- 4-6 years of backend development experience with strong expertise in Java or Go,
- Hands-on exposure to distributed systems, and solid knowledge of PL/SQL, with the ability to work independently and take high ownership of deliverables.
- Strong problem-solving and critical thinking abilities.
- Experience working with distributed systems and architecture design patterns.
- Strong database development skills with PL/SQL.
- Excellent team coordination and collaboration skills.
- High sense of ownership, accountability, and commitment towards project delivery.
- Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related technical field is required.
Good to Have Skills
- Exposure to Cloud platforms (AWS or GCP).
- Understanding of Frontend technologies or DevOps practices.
- Experience with workflow orchestration tools such as Temporal or similar platforms.
Work Requirements:
- Willingness to work in US or flexible shift timings based on project requirements
- Ability to work independently on POCs/projects and help scale additional pods of work
- Guide and direct junior team members to ensure proper implementation
Job Summary
We are seeking an experienced Java Drools Developer to design, develop, and maintain rule-based applications using Drools. The ideal candidate will have strong backend development skills and hands-on experience with business rule management systems in enterprise environments.
Key Responsibilities
- Design, develop, and maintain business rules using Drools (BRMS)
- Create and manage Drools Rule Files (DRL), decision tables, and rule flows
- Integrate Drools with Java / Spring Boot applications
- Optimize rule execution, performance, and scalability
- Develop and consume RESTful APIs
- Collaborate with business analysts to translate requirements into rules
- Participate in code reviews and ensure best practices
- Support testing, debugging, and production issues
Required Skills
- Strong hands-on experience in Java
- Solid experience with Drools Rule Engine / BRMS
- Experience with Spring / Spring Boot and microservices architecture
- Knowledge of REST APIs and backend integrations
- Understanding of rule lifecycle management and versioning
- Good problem-solving and analytical skills
Key Responsibility Areas:
- Design, build and deliver Enterprise software solutions.
- Write code with standards and conventions and follow best practices.
- Encourage and lead innovation and solid lifecycle processes.
- Collaborate with development teams on work definition, estimation and prioritization
- Lead and grow as a professional software engineer.
- 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
Required Skills:
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
- Must have strong knowledge and experience in Agile based software development methodologies. Knowledge of an Agile tool like Jira.
- Strong knowledge of working in Integrations of 3rd party APIs and creating the new APIs.
- Must have good knowledge of creating Flow diagrams, UMLs and all the required documentations.
- Domain Preference
- BFSI, FinTech
Job Description:
We are seeking an experienced Java Back-end Developer to join our team. The ideal candidate
will be responsible for designing, developing, and maintaining robust and scalable back-end
solutions using Java and related technologies. The Back-end Developer will work closely with
cross-functional teams to deliver high-quality software solutions that meet our business needs.
Responsibilities:
Design, develop, and maintain Java-based back-end applications, services, and APIs.
Write efficient, reusable, and well-documented code following industry best practices
and coding standards.
Collaborate with front-end developers, product managers, and other stakeholders to
understand requirements and translate them into technical solutions.
Implement and maintain database schemas, write complex SQL queries, and optimize
database performance using Oracle SQL.
Develop and consume RESTful web services to enable seamless integration with
external systems.
Utilize Spring framework and its various modules (e.g., Spring Boot, Spring Batch) for
building enterprise-level applications.
Manage project dependencies and build processes using Maven.
Work with version control systems such as Git for code management and collaboration.
Perform unit testing, integration testing, and debugging to ensure the quality and
reliability of back-end components.
Stay updated on emerging technologies, trends, and best practices in back-end
development.
Additional Requirements:
Strong knowledge of application servers such as Tomcat and WebLogic.
Experience with continuous integration tools such as Jenkins.
Familiarity with automated testing frameworks such as JUnit.
Understanding of authentication and authorization mechanisms, including OAuth.
Knowledge of SOAP web services and related technologies.
Requirements:
Bachelor's degree in Computer Science, Engineering, or a related field.
5 Plus years of experience in Java back-end development.
Proficiency in Java programming language and related frameworks (e.g., Spring, Spring
Boot, Spring Batch).
Strong understanding of object-oriented programming principles, data structures, and
algorithms.
Experience with Oracle SQL and database design principles.
Familiarity with RESTful web services and API development.
Experience with build tools such as Maven.
Knowledge of version control systems, particularly Git.
Strong problem-solving skills and attention to detail.
Excellent communication and collaboration skills.
Ability to work effectively in a fast-paced, agile environment.
Preferred Qualifications:
Experience with other databases such as MySQL, PostgreSQL, or MongoDB.
Familiarity with continuous integration/continuous deployment (CI/CD) pipelines.
Understanding of software development best practices and design patterns.
*forward your resume to (ambikadotj@semperfidotcodotin)(dot - .)
) 2+yrs of strong experience in Java/J2EE technologies (Core Java, Spring, Springboot, Hibernate,
JPA, Microservices)
*) Experience with working on Java 8.0 and its emerging road map for 11
*) Hands on experience in Springboot and good knowledge of MySQL, MongoDB
*) Hands on experience in working with Angular 6 and above. Experience working with product
management and UI/UX designers having knowledge of advanced Javascript, JQuery
*) Working knowledge on components, modules, data/event bindings, templates, using and creating
directives, writing routes, services, forms and models
*) Solid understanding of the full frontend and backend development life cycle
*) Strong experience in Spring Framework (Spring MVC, Spring security, Spring data, OAuth)
*) Experience with Webservices (SOAP and REST) and API integration. Good knowledge of JSON and
Swagger and Postman is required
*) Experience with web application servers like Tomcat, Jetty, JBoss. Knowledge of Kafka with MQTT
would be an added advantage
*) Experience with TDD, code testability standards, JUnit
*) Experience in managing configurations and deploying and hosting applications in AWS
*) Experience with DevOps tools like Git, Maven, SourceTree, Jenkins, Docker and CICD model of
development
Knowledge on Model to Code Generation
Ability to work independently, with minimal training and direct guidance
Ability to respond to customer inquiries quickly
Ability to quickly modify/setup routes
Familiarity with Rhapsody Secure transmission protocols (e.g. Secure File Transfer (SFT) and Secure Object Access Protocol (SOAP) routes process, etc.
Prior experience with protocols like OSLC, SOAP and REST APIs
Ability to identify and resolve exceptions with electronic data exchange between EMR data submitters, and data recipients.
Knowledge of HL7/XML/FHIR/EDI standards
Strong in building JUnit tests during development
Responsibilities:
- Taking initiative in the Design and Development of Android applications.
- Ship reliable software practicing robust software design and in-depth code reviews.
- Design major software components, systems, and features and implement full-stack app foundation features and core app features.
- Take ownership, design, develop and deploy in a collaborative environment with other team members
- Knowledge of architect solutions using innovative technology ideas and industry-leading methodologies.
Requirements:
- Good hands-on experience in developing and deploying Android apps Android native/cross-platform.
- Comfortable with JAVA and Kotlin both.
- Experience implementing integrated solutions with APIs built using RESTful web services.
- Strong analytical and debugging skills.
- Good understanding of Data Structure and Algorithms.
- Adapt to a dynamic work environment. Stay updated with the latest in technology and always think customer first.
- Study and understand the product specifications thoroughly to design appropriate software solutions. Suggest improvements and optimize existing implementations.
- Ability to identify and deliver POCs and Demos in a record timeframe.
- Encourage and coordinate with the team around new technologies, processes, and approaches.
- Proficiency in various Design Principles and app development methodologies.
- Strong communication skills with a people-first approach without compromising on engineering tasks
Swift is building a next generation checkout stack for India - a platform rolling up payments and logistics solution for all fulfillment needs. We give businesses the opportunity to provide a customer experience at par with the likes of Amazon and Flipkart, all the while saving money and time.
Its basically Amazon without the website listing - we let our sellers design their own sales channel :-)
We believe there are many things a seller or small business has to worry about when selling online, logistics/payments/etc shouldn't be one of them. With our solution, SMBs and D2C brands get access to technologies and services like next day delivery, same day delivery, live package tracking, Card/Cash on delivery, scheduled delivery etc, making parcel delivery just as simple as collecting payment.
We also provide robust APIs which makes it easy for developers to add shipping capabilities to their multichannel online store.
We want to be the #1 checkout platform that’s reliable, easy to use and affordable.
About you:
You have experience in Java/Scala/JVM based languages and have an understanding of server design and implementation. You are looking for challenges in growing a product from hundreds to millions of visitors per month making thousands of transactions a day.
You like working with streaming/reactive architectures and have experience/interest in setting up MongoDB based cloud infra from scratch. You generally prefer to use a minimal set of simple tools to a diverse range of complex ones.
We are looking to build a back-end cloud infrastructure (on Java/Scala with Google Cloud Platform preferably) which will be a fault-tolerant real-time stream processing system on the cloud - Our system will need to meet liveliness guarantees from a web/API application perspective (and not a big data/ETL perspective).
You like to work on a variety of projects - at this job, you’ll be developing a complex backend API infra, a reactive streaming architecture and a cloud-native, highly available API for our customers.
You have:
Experienced in any JVM based language.
Have some experience in NoSQL and architecting APIs
Strong verbal and written communication skills and the ability to work well cross-functionally.
We offer:
You to be a part of a small, but a super capable team.
The opportunity to work closely with founders to define, scope, estimate and plan various aspects of the product. Being one of the first hires at Swift, you will be involved in both high and low-level decision making. This means a lot of ownership, which we cultivate by having a flat structure.
Competitive salary and stock options from a high-growth company.
Required Skills
- As a Senior Core Java Developer, you will have a range of responsibilities from shaping and implementing strategic products to ensuring that company stays on the leading edge of technology
- You will have generic capabilities across application development stack and strong technical expertise in one / two application layers
- Excellent working knowledge of the following technologies:
- Implementation exp (hands-on) on Server Side Java technologies (Core Java, Multithreading, Concurrent API’s, Executor services, collections, concurrent packages, DS/Algo, design patters/principles, basic data case, Junit/agile)
- Design Patterns
- SQL and Relational Databases such as DB2
- Hands-on experience on Spring and Hibernate










