
JOB DESCRIPTION:
Location: mumbai
Mode of Work : 3 days from Office
DSA(Collections, Hash maps, trees, Linkedlist and Arrays, etc), Core Oops concepts(Multithreading, Multi Processing, Polymorphism, Inheritance etc) Annotations in Spring and Spring boot, Java 8 Vital features, database Optimization, Microsevices and Rest API
- Design, develop, and maintain low-latency, high-performance enterprise applications using Core Java (Java 5.0 and above).
- Implement and integrate APIs using Spring Framework and Apache CXF.
- Build microservices-based architecture for scalable and distributed systems.
- Collaborate with cross-functional teams for high/low-level design, development, and deployment of software solutions.
- Optimize performance through efficient multithreading, memory management, and algorithm design.
- Ensure best coding practices, conduct code reviews, and perform unit/integration testing.
- Work with RDBMS (preferably Sybase) for backend data integration.
- Analyze complex business problems and deliver innovative technology solutions in the financial/trading domain.
- Work in Unix/Linux environments for deployment and troubleshooting.
Required Skills & Experience:
- 3– 7 years of strong hands-on experience in Core Java, Spring boot, microservices, data structures.
- Deep understanding of Object-Oriented Programming (OOP), data structures, algorithms, and design patterns.
- Proven experience with Spring, CXF, and REST/SOAP web services.
- Solid understanding of microservices architecture and distributed systems.
- Experience working with Sybase or other relational databases.
- Expertise in multithreading, concurrency, and high-throughput server-side development.
- Exposure to capital markets, sales & trading platforms, or similar financial services applications.
- Good working knowledge of Unix/Linux environments.
- Experience in solution architecture and design documentation is a strong plus.
- Strong problem-solving skills, analytical thinking, and a proactive attitude.
- Excellent communication and interpersonal skills to work effectively with global teams.
Preferred Qualifications:
- Bachelor’s or Master’s degree in Computer Science, Engineering, or related field.
- Previous experience in investment banking, capital markets, or financial technology domains.

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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EDUCATION & EXPERIENCE :
- A professional degree in Computer Science from a reputable institution, backed by a consistent academic record.
- A knack for problem-solving, data structures, and algorithms.
- Proficiency in ElasticSearch.
- 6+ years of hands-on development experience, primarily in building products for large enterprises.
- Exceptional communication skills.
- Mastery in Java programming; familiarity with Python is a plus.- Experience with Spring Boot.
- Practical knowledge of one or more cloud-based technologies (e.g., ElasticSearch, Storm, Hazelcast, MongoDB, Ceph, Kafka) is highly desirable.
- Expertise in building concurrent and/or parallelized, highly performant scalable applications.
- A track record of identifying and addressing complex issues in scalable deployments.
- Exposure to Service-Oriented Architecture (SOA) and Test-Driven Development (TDD) is an added advantage.
ROLES & RESPONSIBILITIES :
- Dive deep into technical aspects (Analysis, Design & Implementation) as required.
- Take complete ownership of features within the product.
- Engage in debates and detailed discussions about functional and non-functional requirements with our Product Management team.
- Collaborate with the team to design solutions, seeking stakeholder input before implementation.
- Create essential artifacts such as functional specifications and detailed designs for your assigned features.
- Implement intricate features with an unwavering commitment to quality, following the Test- Driven Development (TDD) process.
- Maintain open lines of communication, promptly reporting risks and progress to your supervising manager.
- Share your expertise and mentor team members.
- Provide support by troubleshooting and creating Root Cause Analysis (RCA) for production issues, subsequently working on short-term and long-term solutions.
Job Description
We are looking for a hands-on Tech Lead – Java with strong software engineering fundamentals, a deep understanding of Java-based backend systems, and proven experience leading agile teams. This role involves a balance of individual contribution and technical leadership — mentoring developers, designing scalable architectures, and driving the success of product delivery in fast-paced environments.
Key Responsibilities
- Lead the end-to-end design, development, and deployment of Java-based applications and RESTful APIs.
- Collaborate with product managers and architects to define technical solutions and translate business requirements into scalable software.
- Guide and mentor team members in best coding practices, design patterns, and architectural decisions.
- Drive code reviews, technical discussions, and ensure high code quality and performance standards.
- Troubleshoot critical production issues and implement long-term fixes and improvements.
- Advocate for continuous improvement in tools, processes, and systems across the engineering team.
- Stay up to date with modern technologies and recommend their adoption where appropriate.
Required Skills
- 5+ years of experience in Java backend development with expertise in Spring/Spring Boot and RESTful services.
- Solid grasp of Object-Oriented Programming (OOP), system design, and design patterns.
- Proven experience leading a team of engineers or taking ownership of modules/projects.
- Experience with AWS Cloud services (EC2, Lambda, S3, etc.) is a strong advantage.
- Familiarity with Agile/Scrum methodologies and working in cross-functional teams.
- Excellent problem-solving, debugging, and analytical skills.
- Strong communication and leadership skills.
About HummingWave
HummingWave is a leading IT product development company specializing in building full-scale application systems with robust cloud backends, sleek mobile/web frontends, and seamless enterprise integrations. With 50+ digital products delivered across domains for clients in the US, Europe, and Asia-Pacific, we are a team of highly skilled engineers committed to technical excellence and innovation.
Thanks
Job description
Key Responsibilities
- Design, develop, and maintain serverless applications using AWS services such as Lambda, API Gateway, DynamoDB, and S3.
- Collaborate with front-end developers to integrate user-facing elements with server-side logic.
- Build and maintain RESTful APIs to support web and mobile applications.
- Implement security best practices for AWS services and manage IAM roles and policies.
- Optimize application performance, scalability, and reliability through monitoring and testing.
- Write clean, maintainable, and efficient code following best practices and design patterns.
- Participate in code reviews, providing constructive feedback to peers.
- Troubleshoot and debug applications, identifying performance bottlenecks and areas for improvement.
- Stay updated with emerging technologies and industry trends related to serverless architectures and Python development.
Qualifications
- Bachelors degree in Computer Science, Engineering, or related field, or equivalent experience.
- Proven experience as a Python backend developer, with a strong portfolio of serverless applications.
- Proficiency in AWS services, particularly in serverless architectures (Lambda, API Gateway, DynamoDB, etc.).
- Solid understanding of RESTful API design principles and best practices.
- Familiarity with CI/CD practices and tools (e.g., AWS CodePipeline, Jenkins).
- Experience with containerization technologies (Docker, Kubernetes) is a plus.
- Strong problem-solving skills and the ability to work independently and collaboratively.
- Excellent communication skills, both verbal and written.
Preferred Skills
- Experience with frontend technologies (JavaScript, React, Angular) is a plus.
- Knowledge of data storage solutions (SQL and NoSQL databases).
- AWS certifications (e.g., AWS Certified Developer Associate) are a plus.
Key Responsibilities:
- Development of a Single Page Application (SPA) and it's components in Typescript: deployed and optimized for progressive mobile and browsers using Angular 2 and Ionic 2 frameworks.
- Creating custom, general use modules and smart components which extend the elements and modules of core Angular framework.
- Creating self-contained, reusable, and testable modules and components in Typescript and using responsive HTML and CSS.
- Architecting and automating the build process for production, using task runners or scripts.
- Writing non-blocking code, and resorting to advanced techniques such as multi-threading, when needed
Skills and Qualifications:
- Should have experience with CSS 3, SCSS, Java script and HTML5.
- Full-time knowledge of Angular practices and commonly used modules based on extensive work experience. Or 2 Year or more experience with other industry-leading frameworks like React.
- Minimum 1-year experience in working and extending one of the CSS or UI frameworks like Ng-lightening, Angular-material
Education:
- BE / BTech / MCA
designers set out to redefine the credit card for you - the consumer. The result is OneCard - a credit card reimagined
for the mobile generation. OneCard is India's best metal credit card built with full-stack tech. It is backed by the
principlesofsimplicity,transparency,andgivingbackcontroltotheuser.
The Engineering Challenge
“Re-imagingcredit andpayments fromFirstPrinciples”
Payments is an interesting engineering challenge in itself with requirements of low latency, transactional guarantees,
security, and high scalability. When we add credit and engagement into the mix, the challenge becomes even more
interesting with underwriting and recommendation algorithms working on large data sets. We have eliminated the
current call center, sales agent, and SMS-based processes with a mobile app that puts thecustomers in complete control.
To stay agile, the entire stack is built on the cloud with moderntechnologies.
Checkoutourappshere:
OneCard(Bestcreditcardapp):www.getonecard.app
OneScore (Over 12 million downloads): www.onescore.app
JD - Sr. Software Engineer - Backend
FPL is hiring an experienced Backend Developer who is passionate about developing apps andloves to work in a fast
paced environment.
Desired Experience
3-5 years with technical hands-on experience in building large-scale B2C applications catering to millions of
users. Previous experience in building scalable products is a must
What you will do
• Be a part of our backend for frontend/ credit card processing engineering teams to build the best home-grown credit card
stack
• Partner with the product teams to understand the product features and specifications, translate them into high level and lowlevel design
• Work with frontend and backend developers to build out a customer-centric experience that will constantly evolve
• Respond to support team tickets as needed to resolve bugs and issues
• Participate in contributing ideas, updates, and product development areas to the team
Technical Expertise
• Strong insight into Java programming language (Class loading, Memory Management, Transactions, Executors, Lambdas
and Streams)
• Experience in distributed technologies, real-time, high throughput and low latency systems
• Hands-on prior experience with scalable Cloud based architectures
• Experience in one or more frameworks like Spring is a plus but not required
• Proficiency in data structures & algorithms
• Strong problem solving and analytical skills
• Any experience in payments is a plus
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
-
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.
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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
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Create reusable code
Should be able to join in 30 days or less.
Job Description:
- Code and test programming for software and mobile apps.
- Develop and deploy computer applications.
- Execute code builds to test and production environments.
- Fix bugs in existing code.
- Collaborate with product, design, and marketing teams.
- Creating top-quality applications.
- Collaborating with front-end developers.
- Ensuring that junior staff delivers according to standards.
- Improving functionality.
- Using the most updated and appropriate technologies.
- Designing and building application layers.
Sills required:
.Net, Java & SQL Database
It is a platform that connects new-age digital-first brands with "relevant" sellers to sell their products and services to trust deficit, less tech-savvy users by building trust through assisted sales and support. It acts as a bridge between brands and the end consumers who need a physical touchpoint, in-person interactions, training, push, and motivation before buying a product/service.
We are looking for a passionate, self-driven, motivated, hands-on Tech enthusiast who has a strong understanding and is willing to shape, drive, and implement technology at our company. We are looking for someone who can build a product from scratch with a successful track record of building scalable software systems. If you are someone who believes in our core values and loves working in early-stage startups and enjoys working in a challenging environment, we welcome you with open arms!
This opportunity is for you if
● You have 4-6 Years of work experience in building highly-interactive applications using Java, Spring MVC, Spring JMS, Spring JDBC, Spring IOC, Spring Boot, MySQL, MiBatis, ReactJS, JavaScript, jQuery, AWS, JMS and have knowledge on a wide range of web technologies, tools, and Frameworks.
● You have experience in working with Restful web services
● You have strong knowledge and understanding of design patterns and domain-driven design
● You understand fundamental design principles behind building scalable, resilient, and
maintainable applications
● You have functional knowledge of inclusive design: accessibility, and related tooling
● You have consumer web development experience for high-traffic, public-facing web
applications
● You have a knack for writing clean, readable, reusable code
● You have good knowledge of TDD and CI/CD practices.
● You have experience in managing and publishing releases using Git branching and tools like NPM and YARN.
● You have a penchant for learning
● You are a great analytical & logical thinker and someone who loves solving problems
● You are passionate, energetic, enthusiastic and a go-getter
● You are “ FUN @ Work “
scalability, accessibility, usability, design, and security in mind. If you don't have all
of these, that's ok, but be excited about learning the few you don't know.
Familiar with building complex web applications using Javascript / AJAX, XHTML,
CSS.
Experience with or knowledge of jQuery, Java, Struts, and other website technologies.
Strong, object-oriented design and coding skills (C/C++ and/or Java preferably on a
UNIX or Linux platform)
Solid software development background including design patterns, data structures,
test driven development
Knowledge of Perl or other scripting languages a plus
Experience with distributed (multi-tiered) systems, algorithms, and relational
databases
Software development experience in building highly scalable applications
Master’s degree in Computer Science, Computer Engineering or related technical
discipline
Experience in eCommerce and Deep hands-on technical expertise
Ability to handle multiple competing priorities in a fast-paced environment
Experience working with service oriented architectures and web based solutions.










