
2+ years of experience working with backend development.
1+ year experience in GoLang Backend Development.
Must show your previous work.
Deployed at least 3 complete products which use REST APIs.
Exposure to making Postman docs.
Knowledge/ Experience of modern authorisation mechanisms, such as JSON Web Token and cookies.
Experience in handling business requirements and translate them into technical requirements.
Experience with version control such as Git and GitHub
Should have a knowledge of
- GoLang, GoLang Clean Arch, GoRoutines, GORM, Docker, Go Fiber, PostgreSQL
.

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Job Title : Senior Consultant (Java / NodeJS + Temporal)
Experience : 5 to 12 Years
Location : Bengaluru, Chennai, Hyderabad, Pune, Mumbai, Gurugram, Coimbatore
Work Mode : Remote (Must be open to travel for occasional team meetups)
Notice Period : Immediate Joiners or Serving Notice
Interview Process :
- R1 : Tech Interview (60 mins)
- R2 : Technical Interview
- R3 : (Optional) Interview with Client
Job Summary :
We are seeking a Senior Backend Consultant with strong hands-on expertise in Temporal (BPM/Workflow Engine) and either Node.js or Java.
The ideal candidate will have experience in designing and developing microservices and process-driven applications, as well as orchestrating complex workflows using Temporal.io.
You will work on high-scale systems, collaborating closely with cross-functional teams.
Mandatory Skills :
Temporal.io, Node.js (or Java), React.js, Keycloak IAM, PostgreSQL, Terraform, Kubernetes, Azure, Jest, OpenAPI
Key Responsibilities :
- Design and implement scalable backend services using Node.js or Java.
- Build and manage complex workflow orchestrations using Temporal.io.
- Integrate with IAM solutions like Keycloak for role-based access control.
- Work with React (v17+), TypeScript, and component-driven frontend design.
- Use PostgreSQL for structured data persistence and optimized queries.
- Manage infrastructure using Terraform and orchestrate via Kubernetes.
- Leverage Azure Services like Blob Storage, API Gateway, and AKS.
- Write and maintain API documentation using Swagger/Postman/Insomnia.
- Conduct unit and integration testing using Jest.
- Participate in code reviews and contribute to architectural decisions.
Must-Have Skills :
- Temporal.io – BPMN modeling, external task workers, Operate, Tasklist
- Node.js + TypeScript (preferred) or strong Java experience
- React.js (v17+) and component-driven UI development
- Keycloak IAM, PostgreSQL, and modern API design
- Infrastructure automation with Terraform, Kubernetes
- Experience in using GitFlow, OpenAPI, Jest for testing
Nice-to-Have Skills :
- Blockchain integration experience for secure KYC/identity flows
- Custom Camunda Connectors or exporter plugin development
- CI/CD experience using Azure DevOps or GitHub Actions
- Identity-based task completion authorization enforcement
JOB DESCRIPTION
Experience: 5-8 years
Location: Mumbai
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. - 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 2000+ 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
About Company:
Snapsight is an AI-powered platform that delivers real-time event summaries in 75+ languages. We work with conferences worldwide and won the 2024 Skift Award for Most Innovative Event Tech. We're an early-stage startup scaling fast.
Join us if you want to become part of a vibrant and fast-moving product company that's on a mission to connect people around the world through events.
Location: Remote/Work From Home
What you'll be doing:
- Writing reusable, testable, and efficient code in Node.js for back-end services.
- Ensuring optimal and high-performance code logic for the data from/to the database.
- Collaborating with front-end developers on the integrations.
- Implementing effective security protocols, data protection measures, and storage solutions.
- Preparing technical specification documents for the developed features.
- Providing technical recommendations and suggesting improvements to the product.
- Writing unit test cases for APIs.
- Documenting code standards and practicing it.
- Staying updated on the advancements in the field of Node.js development.
- Should be open to new challenges and be comfortable in taking up new exploration tasks.
Skills:
- 3-5 years of strong proficiency in Node.js and its core principles.
- Experience in test-driven development.
- Experience with NoSQL databases like MongoDB is required
- Experience with MySQL database
- RESTful/GraphQL API design and development
- Docker and AWS experience is a plus
- Extensive knowledge of JavaScript, PHP, web stacks, libraries, and frameworks.
- Strong interpersonal, communication, and collaboration skills.
- Exceptional analytical and problem-solving aptitude
- Experience with a version control system like Git
- Knowledge about the Software Development Life Cycle Model, secure development best practices and standards, source control, code review, build and deployment, continuous integration
Role: Backend Developer
Experience: 3-6 years
Duration: 1–3 months
Tech Stack: .NET Core, MongoDB
Domain: Clinical/Healthcare (Preferred)
Responsibilities
- Develop and maintain REST APIs using .NET Core
- Design scalable backend services and microservices
- Implement data storage and retrieval using MongoDB
- Optimize database queries and application performance
- Integrate with external systems (APIs, FHIR etc.)
- Ensure data security and compliance (GxP/FDA preferred)
- Support debugging and production issue resolution
Required Skills
- Strong experience in .NET Core/ASP.NET Core
- Hands-on experience with MongoDB or NoSQL databases
- Experience in REST API development
- Knowledge of microservices architecture
- Familiarity with Git and CI/CD pipelines
Preferred
- Healthcare/Clinical Trial domain exposure
- Experience with Azure cloud deployments
- Understanding of FHIR or Healthcare Data Standards
Technical Skills Desired:
- Must have experience in either of JavaScript frameworks: Angular (Preferred) / ReactJS/Node.
- Must have experience in either of backend software development in NODE Js or [J2EE, Spring Boot, Spring core, JPA]
- Must have experience in designing/implementing Hibernate/ORM, Restful web services, Micro Services using Java or Node Js
- Knowledge with relational/ NoSQL databases (e.g., Oracle, MySQL, MongoDB)
- Knowledge with versioning (Git or SVN) /build tools (Maven/Ant/Gradle/Junit), Unit testing & code coverage tools is desired
- Knowledge of App / Web servers (NGINX / Tomcat / Jboss Wildfly)
- Understands the process of new application development and has the ability to apply these concepts with minimal mentoring and supervision.
- Advanced knowledge experience using any of IDE (e.g., Eclipse, SonarQube, STS, VS Code)
- Knowledge on Cloud platform, technologies & deployments is an added advantage
- Resolves technical issues through debugging, research, and
- Must have experience with Agile tools
Functional Skills Desired:
- Good knowledge in product development domains
- Knowledge in Finance and Insurance domain preferred
- Maintain quality and ensure responsiveness of
- Complete application development by coordinating requirements, schedules, and activities contributing to team meetings;
- Troubleshooting development and production problems across multiple environments and operating platforms.
- Collaborate with the rest of the engineering team to design and launch new features
- Understanding and implementation of security and data
- Ensure designs are in compliance with specifications and standards and best industry
- Usage of Process tools – JIRA, TFS, HP QC or any other agile tools, also knowledge of CMM Level 3 development process.
- Self-motivated & working independently with minimal
- Maintain code integrity and
- Experience working with graphic designers and converting designs to visual
- Follow the coding standards for java/node and angular
Technical Skills Good to Have:
- Usage of troubleshooting tools like J Profiler, J Meter or application performance tuning
- Exposure to Non-web-based developments, for both mobile and
- Development experience using Docker, Kubernetes, Containerization etc in AWS or other cloud platforms
- Willing to take up proof of concepts and showcase the technical capability
- Usage of design tools Visio or draw io

· 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
Payment card industry preferred
Job Responsibilities
We are looking for Backend Developer who can move fast, are capable of breaking down and solving complex problems, and have a strong will to get things done.
Experience & skills required:
- Bachelor’s Or Master’s in computer science
- 1-3 years proven work experience, or demonstrated ability
- Significant experience in building secure, scalable RESTful APIs in NodeJs
- Understanding of Web services
- Strong troubleshooting and performance tuning skills for all layers of a web application.
- Proficient understanding of code versioning tools, such as Git
- Experience with multiple technology stacks on web and mobile
- Experience in different types of integrations like POS, PMS, Payment gateway, SMS gateway is a plus.

- Strong experience in Java Development
- Deep expertise and hands-on experience with Web Applications
- Experience in programming languages such as HTML, CSS, JavaScript, JQuery, React JS, and API.
- Expertise in Java, Spring Boot is an added advantage.
- Hands-on design experience with Web Services (REST, SOAP, etc ..).
- Strong grasp of security principles.
Abilities:
- Developer with strong ability to develop web application using Java and ReactJS
- Should be able to code, design, and implement
- Maintain code integrity and organization











