
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.
Connect with the team
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Job Description:
We are looking for a highly experienced Java Developer with expertise in Spring Boot and Microservices architecture. The ideal candidate will have 4+ years of experience in building scalable, high-performance applications.
Key Responsibilities:
- Develop and maintain Java-based applications using Spring Boot and Microservices.
- Create and implement RESTful APIs and integrate with third-party services.
- Design and build scalable, resilient microservices.
- Perform code reviews and optimize applications for performance and security.
- Deploy and manage applications on cloud platforms (AWS, Azure, or GCP).
- Implement CI/CD pipelines for continuous integration and deployment.
- Diagnose and resolve technical issues and production bugs.
Required Skills:
- Java 8+ or 11+ (strong proficiency)
- Spring Boot, Spring MVC, Spring Security
- Microservices architecture and distributed systems
- RESTful APIs and API gateways
- SQL and NoSQL databases (PostgreSQL, MongoDB, etc.)
- Cloud platforms (AWS, Azure, or GCP)
- Containerization (Docker, Kubernetes)
- CI/CD pipelines (Jenkins, GitLab CI)
- Message brokers (Kafka, RabbitMQ)
Immediate Joiners Preferred. Notice Period - Immediate to 30 Days
Interested candidates are requested to email their resumes with the subject line "Application for [Job Title]".
Only applications received via email will be reviewed. Applications through other channels will not be considered.
About Us
adesso India is a dynamic and innovative IT Services and Consulting company based in Kochi. We are committed to delivering cutting-edge solutions that make a meaningful impact on our clients. As we continue to expand our development team, we are seeking a talented and motivated Backend Developer to join us in creating scalable and high-performance backend systems.
Job Description
We are looking for an experienced Backend and Data Developer with expertise in Java, SQL, BigQuery development working on public clouds, mainly GCP. As a Senior Data Developer, you will play a vital role in designing, building, and maintaining robust systems to support our data analytics. This position offers the opportunity to work on complex services, collaborating closely with cross-functional teams to drive successful project delivery.
Responsibilities
- Development and maintenance of data pipelines and automation scripts with Python
- Creation of data queries and optimization of database processes with SQL
- Use of bash scripts for system administration, automation and deployment processes
- Database and cloud technologies
- Managing, optimizing and querying large amounts of data in an Exasol database (prospectively Snowflake)
- Google Cloud Platform (GCP): Operation and scaling of cloud-based BI solutions, in particular
- Composer (Airflow): Orchestration of data pipelines for ETL processes
- Cloud Functions: Development of serverless functions for data processing and automation
- Cloud Scheduler: Planning and automation of recurring cloud jobs
- Cloud Secret Manager: Secure storage and management of sensitive access data and API keys
- BigQuery: Processing, analyzing and querying large amounts of data in the cloud
- Cloud Storage: Storage and management of structured and unstructured data
- Cloud monitoring: monitoring the performance and stability of cloud-based applications
- Data visualization and reporting
- Creation of interactive dashboards and reports for the analysis and visualization of business data with Power BI
Requirements
- Minimum of 4-6 years of experience in backend development, with strong expertise in BigQuery, Python and MongoDB or SQL.
- Strong knowledge of database design, querying, and optimization with SQL and MongoDB and designing ETL and orchestration of data pipelines.
- Expierience of minimum of 2 years with at least one hyperscaler, in best case GCP
- Combined with cloud storage technologies, cloud monitoring and cloud secret management
- Excellent communication skills to effectively collaborate with team members and stakeholders.
Nice-to-Have:
- Knowledge of agile methodologies and working in cross-functional, collaborative teams.
Essential Skills (Two top
skills)
Java 8
AWS – ECS, SQS
B) Other Information
Educational
Qualifications
Graduate
Experience Mid-level (5+)
Minimum Qualifications:
Java 8 bases web application developer
hands on experience with writing sql queries (RDS)
AWS knowledge like ECS, SQS;
understands CICD and git
webserver – tomcat
uses best practice for code quality, static & dynamic
security scans
Bachelor’s in computer science/Information
Technology or related field
Outstanding at triage or analysis of situations for
production support
Excel with on time delivery with minimal direction
Effective verbal and written communicator
Effective participant of requirements gathering
requirements analysis
Introduction:
Tyroo’s Vidtech.ai is one of the largest independent marketing automation cloud built for the video first world. We build softwares and platforms that allow our partners to derive maximum yields on their marketing spends on various video first social platforms. We work on problems that involve building high availability, low latency solutions which require computing optimal decisions using various self-created modules as well as pre-available modules popular in the ML and Big Data world.
We are looking for a back-end developer who has at least 1 years professional experience in building systems on either Python or Node.js and is able to become an anchor/pillar for the team. The role will require you to architect and develop systems/features needed for our marketing automation products. Strong leadership and mentoring skills are also necessary so that the individual can train, educate and manage junior resources.
Key Requirements:
- Must be able to tackle complex business problems by breaking it down into set of simpler problems and architect solutions for the same
- Must exhibit thought leadership and should be committed towards mentoring and team building
- Must have excellent communication skills as the individual needs to collaborate with Business and Product team
- Must be proactive towards changing software development landscape and keep upskilling
- Must be able to contribute in setting up best practices and effective design patterns in complete development lifecycle.
Technical Requirements:
- Must have 1+ years’ experience in developing scalable systems on Python/Node.js with strong grasp on microservices and serverless architectural patterns
- Must have prior experience with databases like MySQL, Elasticsearch, MongoDB, Redis
- Must be exposed to cloud platforms like AWS or GCP and containerization using Dockers
- Must have worked with RESTful APIs and WebSockets
- Must have deep understanding of HTTP, web browsers and token-based authentication/authorization (OAuth, JWT)
- Must be experienced on Version Control Tools (Git) and Package Managers (npm, yarn, pip)
- Must adhere to coding standards and have the habit of doing unit testing along with regular and rigorous code reviews
- Should know about microservices orchestration using Kubernetes, web servers like Nginx/Apache and queuing systems like Kafka/Kinesis
- Working knowledge of XML, JAVA, REST, SOAP etc
- Basic knowledge of SQL, including the ability to author ad-hoc database queries.
- Is comfortable writing code in Ruby, Python, JavaScript, and Java and enjoys learning new languages and technologies.
- Has experience integrating APIs (major plus)
- Experienced integrating RESTful APIs into web applications (a plus)
- Is experienced with Github or the likes.
- Should have worked on Payment Gateway Applications.
- Has a technical degree in Computer Science, Engineering or Mathematics (MBA is an asset)
- Technical Product/Software certifications an asset
- Has 3 to 5 years of experience in a similar client-facing role
- Has previous experience in a traditional software engineering or Implementation role.
- Has strong analytical and debugging skills.
- Experienced with Salesforce is a plus
- Solution-driven, able to grasp new concepts quickly and efficiently, able to work alone or in a team, able to work with no supervision and under pressure
- Excels in a collaborative and cross-functional environment.
- Demonstrates professional communication skills on technical and business-related subjects
- Experience working with payment gateways a major plus including ecommerce and Retail Experience with continuous integration and test-driven development methodologies a plus
- Excellent time management, organization, and planning skills are essential
- Flexibility to travel as required to meet with clients
- Ability to comprehend and translate complex technical issues and apply to business solutions
- Demonstrate ability to articulate complex technical terms or processes into business language
- Ability to synthesize technical information and apply to business solutions
- Able to set priorities, influence others, and manage customer and partner expectations
- Demonstrated success in customer and partner relationship management
- You are motivated, think outside of the box, and understand the purpose of process and procedures
Card91 is simplifying business payments by providing a plug and play issuance infrastructure
to businesses for domestic and cross-border payments. Our full stack platform enables
businesses to gain control and visibility into their payment flows, controlling the entire payment
lifecycle from onboarding, to issuance, to transaction and data reconciliation. The platform
aims to provide holistic solutions around payment issuance and distribution management. Our
deep focus in payments will help us in bringing new issuance formats as well as technologies
to businesses.
The company has been founded by seasoned technology entrepreneurs who have founded
successful companies like Myntra, Mastiff Technologies earlier. Headquartered in Bangalore,
with presence in Mumbai and NCR, Card91 aims to disrupt the payment infrastructure space
in the issuer-processor segment.
Position: Java Developers
We are building our core team which will be responsible for a highly scalable, always available
microservices based backend for payment processing. The developer will be involved with the
design, implementation, and execution from day one and build a robust, secure, and scalable
payment processing engine.
Roles & Responsibilities
● Individual Contributors talking full ownership of the micro services
● Design and Implement the micro services from scratch
● Be creative and always try to evaluate new strategies to execute faster
● Team player and always eager to teach new team members about the code, structure
and design
● Not afraid of bringing new designs (even languages) which will make the system
execute faster
Experience and Qualifications
● Having 2 - 5 years of experience
● Degree from a premier institute like IIT/NIT/BITS is desirable
● A strong expertise in Java/Spring/Spring Boot/Hibernate/Java
● Experience in developing highly scalable and reliable web applications, including
integration with internal and external systems.
● Experience building web services in REST with technologies like Spring Boot, Spring-
WS, spring MVC or JAX-RS
● Should be able to write test cases (unit and functional) to cover most of the code
● Experience in databases like MySQL and NoSQL db like Cassandra, etc.
● Experience with Cloud computing AWS & Microservices architecture
● Exposure to front end technologies like VueJS, ReactJS etc is an advantage
● Knowledge on Redis, ELK stack or Temporal BPM is a big plus
● Docker & Kubernetes experience is a big plus
● Previous experience of Fintech company is an added advantage
What’s on offer
● Vibrant, fun and rewarding culture that nurtures and promotes excellence
● Opportunities to learn and interact with payment industry leaders
● Competitive remuneration, group health insurance & PF
● Other office perks of being part of an early-stage Start-up
● Location: HSR Layout, Bangalore
- Having around 8+ years of Experience in IT industry in Software Development.
- Sound knowledge in Core Java
- Having work experience in SDN/NFV, Orchestration
- Having work experience in Open source and Open Flow Controller(SDN).
- Experience in Aglie methodology.
- Good Knowledge on MySQL ,Postgresql or any Timeseries DB,Kafka, Zookeeper
- Good Knowledge on ONOS, ODL (OpenDaylight) OpenKilda,Mininet.
- Having work experience in MVT/MVC architecture.
- Having good knowledge networks, devices, service modeling and automation in systems.
- Having work experience on API & JSON implémentation.
- Knowledge in OpenStack,Ansible, Shellscript, Chef, Puppet,
- Good Understanding of Software Development (i.e. SDLC)
- Good team player enthusiastic and quick learner
- Good interpersonal skill, commitment, result oriented with a quest and learn new technologies and understanding challenging tasks
- Knowledge in AWS, AZURE Cloud
• Strong technical experience with Java 8 and above
• Sound understanding of Database concepts & experienced with MySQL.
• Strong technical experience with JavaScript/Ajax/jQuery
• Good knowledge of Angular 2+ version.
• Good knowledge of REST APIs and Spring Boot.
• Awareness with any of version control systems like Git/SVN/TFS/VSS etc
• Awareness and exposure of AWS architecture components such as S3, SQS, Lambda, EKS etc
Good to Have:
• Knowledge of Docker and Containerization.
• Working in Agile env will be plus.
• Understanding of Code Optimization techniques, Code coverage tool and code analysis tool.
• Working knowledge of CI/CD process.
• Experience of onshore/offshore team collaborations.
• Makes a valuable contribution to team objectives, displays trust and mutual understanding, accepts constructive feedback, and handles confrontation constructively
- Experience with Hybris 6.x/ 1905/ 2005 with knowledge of Hybris B2C-ACCELERATOR/HYBRIS -B2B-ACCELERATOR, Hybris back- office, Hybris Frontend WCMS cockpit, product cockpit, Hybris core, Hybris Commerce, Hybris Search, Hybris OCC, Solr Customization
- Experience working on core Java, JSP/Servlets, JEE, Spring, Services (SOAP, REST), Design Patterns, Apache, Tomcat, Build Tools- Ant/Maven/Jenkins, SCM Tools - CVS/SVN/ GIT Hub
- Knowledge of one or more modules HYBRIS-PIM, HYBRIS-PROMOTIONS, HYBRIS-OMS, HYBRIS -TRAVEL-ACCELERATOR
- Additional skills in SOA, ESB, JMS
- Knowledge of high-quality professional software engineering practices for agile software development cycle, including coding standards, code reviews, source control management, build processes, testing, and deployment
- Experience in eCommerce/Hybris payment integration, 3rd Party integration development.
- Preferable to have development experience in Spartacus Hybris module.
- Preferable to have exposure to Azure cloud (Hybris CCV2)
- Fundamental knowledge of design patterns.
- Experience in communicating effectively with users, other technical teams, and management to collect requirements, describe software product features and technical designs
- Passionate about building great solutions
- Mentoring the team members to meet the clients’ needs and holding them accountable for high standards of delivery
- Willing to work in Shifts to support Production environment and Samsung.com Global eCommerce client requests.









