
Experience: 6 - 10 years
Location: Bangalore

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JOB DESCRIPTION
Experience: 5-8 years
Location: Mumbai
Wissen Technology is now hiring for a Senior 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. - 5-8 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 Us:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.
Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality.
We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more.
Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results.
Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.
Website : www.wissen.com
Java Developer – Job Description 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. - 4 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 the year 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.
Mandatory Criteria
- Strong knowledge of React Native fundamentals — components, hooks, navigation, and state management.
- Ability to build iOS and Android apps from the same codebase.
- Experience with Expo SDK for building, testing, and deploying apps.
- Familiar with Expo’s managed vs. bare workflow, push notifications, deep linking, and app store deployments.
- Understanding of mobile app performance optimization and experience integrating with REST/GraphQL APIs.
- Proficiency in local storage, offline sync, and permissions handling.
- Ability to implement pixel-perfect UI from Figma/Sketch with cross-device responsiveness.
- Hands-on experience with Git/GitHub workflows, CI/CD tools (Expo EAS, Fastlane), and testing frameworks (Jest, Detox).
- Comfort using VS Code, debugging tools, and running Docker, emulators, or local test servers without lag.
If interested kindly share your updated resume on 82008 31681
CTC: up to 20 LPA
Exp: 4 to 7 Years
Required Qualifications
- Bachelor's degree in Computer Science, Information Technology, or related field
- 4+ years of experience in software development
- Strong proficiency in Java with deep understanding of web technology stack
- Hands-on experience developing applications with Spring Boot framework
- Solid understanding of Python programming language with practical Flask framework experience
- Working knowledge of NATS server for messaging and streaming data
- Experience deploying and managing applications in Kubernetes
- Understanding of microservices architecture and RESTful API design
- Familiarity with containerization technologies (Docker)
- Experience with version control systems (Git)
Skills & Competencies
- Skills Java (Spring Boot, Spring Cloud, Spring Security)
- Python (Flask, SQL Alchemy, REST APIs)
- NATS messaging patterns (pub/sub, request/reply, queue groups)
- Kubernetes (deployments, services, ingress, ConfigMaps, Secrets)
- Web technologies (HTTP, REST, WebSocket, gRPC)
- Container orchestration and management
- Soft Skills Problem-solving and analytical thinking
Job Summary:
We are looking for a skilled and motivated Backend Engineer with 2 to 4 years of professional experience to join our dynamic engineering team. You will play a key role in designing, building, and maintaining the backend systems that power our products. You’ll work closely with cross-functional teams to deliver scalable, secure, and high-performance solutions that align with business and user needs.
This role is ideal for engineers ready to take ownership of systems, contribute to architectural decisions, and solve complex backend challenges.
Website: https://www.thealteroffice.com/about
Key Responsibilities:
- Design, build, and maintain robust backend systems and APIs that are scalable and maintainable.
- Collaborate with product, frontend, and DevOps teams to deliver seamless, end-to-end solutions.
- Model and manage data using SQL (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., MongoDB, Redis), incorporating caching where needed.
- Implement and manage authentication, authorization, and data security practices.
- Write clean, well-documented, and well-tested code following best practices.
- Work with cloud platforms (AWS, GCP, or Azure) to deploy, monitor, and scale services effectively.
- Use tools like Docker (and optionally Kubernetes) for containerization and orchestration of backend services.
- Maintain and improve CI/CD pipelines for faster and safer deployments.
- Monitor and debug production issues, using observability tools (e.g., Prometheus, Grafana, ELK) for root cause analysis.
- Participate in code reviews, contribute to improving development standards, and provide support to less experienced engineers.
- Work with event-driven or microservices-based architecture, and optionally use technologies like GraphQL, WebSockets, or message brokers such as Kafka or RabbitMQ when suitable for the solution.
Requirements:
- 2 to 4 years of professional experience as a Backend Engineer or similar role.
- Proficiency in at least one backend programming language (e.g., Python, Java, Go, Ruby, etc.).
- Strong understanding of RESTful API design, asynchronous programming, and scalable architecture patterns.
- Solid experience with both relational and NoSQL databases, including designing and optimizing data models.
- Familiarity with Docker, Git, and modern CI/CD workflows.
- Hands-on experience with cloud infrastructure and deployment processes (AWS, GCP, or Azure).
- Exposure to monitoring, logging, and performance profiling practices in production environments.
- A good understanding of security best practices in backend systems.
- Strong problem-solving, debugging, and communication skills.
- Comfortable working in a fast-paced, agile environment with evolving priorities.
Key Skills: OpenText AppWorks, OpenText Process Suite (all sub components), Java, JavaScript, XML, SQL, BIRT.
Required Skills:
- Ability to translate complex business requirement into functional technical requirements using OpenText AppWorks (erstwhile Process Suite) low code design and integration framework.
- Knowledge on implementing OpenText AppWorks integration services using REST, SOAP, and Email etc.
- Good understanding of OpenText AppWorks case management features and BPM features.
- Experience in various rules and features like LifeCycle, Activities, User Interface (XForms and Low Code design), SLA, KPI, OTDS, CARS, AppWorks Gateway, Single-Sign-On, External Authentication, SAML, Listeners (File, MQ), SOAP Services, Email integration, HTTP Connector, AppWorks integration with Content/Document Management, etc.
- Experience in full OpenText AppWorks implementation including Entity modelling and Rulesets design.
- Expertise in Java, JavaScript, SQL Server Database.
- Expertise in building Web Services, REST Services API’s (nice to have) Familiar in designing and developing applications in cloud environments (preferably Azure).
- Authentication SAML 2.0, OT.
- Knowledge of OTDS and integration with OTDS
- Exposure to HTML5 ,angular and integration of AppWorks to with angular will be plus
- Exposure to another OpenText platform (ECM, xECM, Captiva, iHUB).
A strong passion for learning and adapting to new technologies.
The ideal candidate should be a self-motivated, multi-tasker, and demonstrated team player. You will be responsible for the production support of software products and coordinating with various teams for support. You should have outstanding communication and Team-Player skills.
Educational Qualification: BCA, MCA or BE/B.Tech (CS)
Must-know technologies: Java,
Good to know technologies: DMN tools
Experience: 02 Years - 05 Years
Skill Level: Good
Responsibilities:
- Contribute to Java development work as well as the latest Decision model and notation tools
-
Comply with coding standards and directions given by his direct manager Collaborate with an international and diverse team of Data Architects, Business Analysts, and Project Managers
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Tasks will be assigned and after completion, code need to be committed and task assigned for review by Senior Java developer
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Work with technology stakeholders to devise solutions that will fulfill business requirements and meet organizational strategic goals
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Develop application functionality which meets business requirements with high quality within given deadlines - develop maintainable, well-documented application functionality with an eye toward standardization, common components, simplicity, performance, robustness and other attributes of enterprise-strength solutions
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Thoroughly test all functionality - utilize detailed and thorough practices including negative testing, testing of boundary conditions, , and work collaboratively with business areas.
-
Support interfaces between the deployment of developed applications and the decommissioning of legacy applications
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Support with the Development and Infrastructure Teams
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Design, and develop scalable, high-performance, highly reliable and secure applications using waterfall and agile methodologies
-
Create reusable code
Areas of responsibilities:
Involvement in the full software development life cycle within broadly defined parameters and providing
software solutions keeping into consideration the software quality needs
Design and defining the interaction between the different component pieces
Write efficient code based on brief given by team lead.
Fast prototyping of proof-of concept features / application based on brief.
Develop and maintain new features on Java stack
Own the delivery of an entire piece of a system or application
Management and execution against project plans and delivery commitments
Work closely with the peers and Leads to develop the best technical design and approach for new product
development
Build software solutions for complex problems.
Compliance with build/release and configuration management process
Responsibility to develop unit test cases for his/her project module.
Execution of appropriate quality plans ,project plans ,test strategies and processes for development
activities in concern with business and project management effort
Desired Profile:
GoodunderstandingofObjectOrientedProgrammingConcepts,hands-onknowledgeonJavastack
(Spring/Hibernate)
Development across multiple browsers/platforms on Website
Good Understanding of SQL/NoSQL data stores
Fair Understanding of Responsive High Level Designs
Work experience in product/start-up company is a plus
Familiarity to MVC, SOA, RESTFull web services
Work with other teams and manage time across multiple projects and tasks in a deadline driven, team
environment
Good to have knowledge of Javascript (AngularJS/ReactJS)/HTML/CSS/JQuery front-end code across a
broad array of Interactive web
Understand agile methodology and instill best practices into the process.
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Whom are we looking for?
Our groundbreaking technology, requires highly skilled and talented Web Backend Developers to understand the depth of the problem and device a solution for it.
We are seeking a Software Engineer, with a depth of experience in developing Web Applications enabled using REST APIs backed by a data warehouse solution, to join our growing company and be a part of our success story. We are looking for individual with great attention to detail, who is genuine, confident, committed and not only passionate about technology, but excited to work in a fun and friendly start-up environment. The ideal candidate will be passionate about technology and getting things to work while at the same time being able to mentor (and lead) other engineers by way of example to achieve excellence in their work.
What does the role involve?
As a Web Backend Software Engineer you will be responsible for creating REST APIs which are used to drive the User Interface. Given the nature of the application, these APIs needs to be very efficient and high performing. This requires optimising queries for faster execution and introducing database changes that may be required.
You would be working with a complex technology stack which includes (but is not limited to) Spring, Hibernate, HornetQ, Quartz, etc. This requires extensive understanding of transaction management and data handling across different application layers.
In addition to the technical ownership, you will also be involved in detailing requirements for requested functionalities and be responsible for providing technical insight into how requirements will be implemented and made available to users. Accurate estimation of tasks and planning are qualities we look for in our engineers.
Responsibilities include:
Develop, test, implement and maintain application software
Take part in software and architectural development activities
Transform requirements into implementation details
Debug application issues and helping support respond to client queries
Participate in application development meetings
Provide accurate estimates, clearly communicate status of tasks and identification of risks
Commitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problem
Performance tuning of application code at different service levels
Incorporate design changes to improve performance of the application
Interact with customers of the application and help address issues reported
Interact with customers of the application and collect requirements or potential uses cases and draft technical and user requirements
ESSENTIAL SKILLS / EXPERIENCE REQUIRED:
Minimum Bachelor's degree in Computer Science or equivalent
Minimum 2+ years experience with Java and J2EE/Java EE
Minimum 2+ years experience with Spring MVC, Spring Security and Hibernate
Strong understanding of relational database and normal forms
Strong understanding of SQL concepts and ability to write optimised and high performing queries
Strong understanding of Java concurrency, concurrency patterns, experience building thread safe code
Experience building RESTful web services
Experience with web application servers like JBoss
Strong written and verbal communication skills
Strong interpersonal skills and time management skills
Strong problem solving and analytical skills
Experience using task tracking systems e.g. Jira and distributed version control systems e.g. Git
DESIRABLE SKILLS / EXPERIENCE:
Understanding of testNg/JUnit
Unix/Windows shell and related command line tools
Experience in Continuous Integration and deployment tools such as Jenkins
Experience with database partitioning and column Indexing
Experience with query optimisation techniques
Why work for us?
Above market remuneration
Stimulating challenges that fully utilise your skills
Work on real-world technical problems to which solution cannot simply be found on the internet
Working alongside other passionate, talented engineers
Hardware of your choice
Our fast-growing company offers the potential for rapid career progression
Click Here to apply: https://hire.withgoogle.com/public/jobs/blueoptimacom/view/P_AAAAAAEAAADLjl0iWO3_0a?trackingTag=cutshort

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1. POSITION DESCRIPTION |
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Job Title: |
Switch Developer/ Integration/ Java Developer |
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Job Type: |
Permanent | Work from Home |
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Qualifications: |
Bachelor’s degree of Engineering, Computer Science or relevant field |
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2. JOB DIMENSIONS: |
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Experience |
3-7 years |
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Primary Skills |
Core Java, Spring Boot, MySQL, Oracle, REST APIs, knowledge of card scheme specifications, ISO8583 Payment standards, EMV Data, Switch payment integration |
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Job Location |
Mumbai/Bangalore | open to remote work |
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3. REQUIREMENTS: |
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· Looking for a Switch developer with 3-7 years of hands on working experience with minimum of 3-4 years in Card and Payment Domain. · Strong knowledge of core java & spring boot · Hands-on experience on payment switch integration · Good knowledge of ISO8583 and EMV Data. · Hands-on experience on any database like MySQL, oracle...etc. · Should be strong in creating/ defining Swagger specs for REST APIs, understand REST principles, Guidelines. · In depth knowledge of Card Scheme Specifications (VISA, MasterCard, Rupay and AMEX), Card · Well versed with payment standards and ISO8583 and EMV data (mandatory), · Hands on experience with Switch payment integration · Resolve technical issues for designers and developers during project lifecycle · Excellent problem solving/troubleshooting skills on Java/J2EE technologies · Result oriented and a versatile engineer who is expert in providing solutions, creating architecture and designs. · Excellent communication (written and verbal) and interpersonal skills |










