
Role and Responsibilities:
- To ensure success as a js developer, you should possess extensive knowledge of Node.Js based services like Express js, Multer.
- Candidate must be well aware of the JS concepts like promises, async-await, callback, fetch, and array methods like map, filter, reduce.
- Knowledge of GIT is a must.
- Must have sound knowledge of creating API through postman or similar tools, developing and maintaining all server-side network requests, ensuring optimal performance of the central database, collaborating with front-end developers on the integration of elements.
- Deep Understanding of mongo and MySQL.
- Working knowledge of Microservices.
- Good understanding of AWS services, Like Instance,S3, Route53, Elastic Bean Etc.
- Best writing code understanding.

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Java Technical Lead
We are solving complex technical problems in the financial 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.
Experience: 10+ years
Location: Mumbai
Job Description:
• Experience in Core Java, Spring Boot.
• Experience in microservices.
• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
• Good knowledge of multi-threading
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should be able 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.

What We’re Looking For
Required Skills & Experience
Backend Development (5+ Years of Experience)
•
Proficiency in backend programming: Python, Go, Rust, or Java.
•
Experience with distributed systems, microservices, and event-driven architectures.
•
Strong grasp of software engineering principles, design patterns, and scalable system design.
API Development & Web Services
•
Expertise in RESTful API and GraphQL design and development.
•
Experience with API security protocols, including OAuth 2.0, JWT, and HMAC authentication.
Blockchain & Web3 Technologies
•
Familiarity with blockchain protocols: Ethereum, Hyperledger, Polkadot, Corda.
•
Understanding of smart contracts, decentralized applications (dApps), and tokenization frameworks.
Database & Data Transformation
•
Strong experience in SQL (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis, Cassandra).
•
Knowledge of financial data transformation standards (ISO 20022, FIX, Open Banking).
Security & Compliance
•
Experience implementing security best practices, including encryption, authentication, and RBAC/IAM-based access control.
•
Understanding of regulatory frameworks: AML/KYC, GDPR, SOX, FISMA, HIPAA.
Cloud & DevOps (2+ Years of Experience)
•
Hands-on experience with AWS, GCP, or Azure for scalable infrastructure deployment.
•
Familiarity with containerization (Docker, Kubernetes) and CI/CD automation (GitHub Actions, Jenkins, Terraform).
Bonus Points For:
•
Experience integrating financial APIs (SWIFT, FIX, Open Banking).
•
Hands-on smart contract development (Solidity, Rust, Go).
•
Contributions to open-source blockchain or fintech projects.
•
Experience with real-time event streaming using Kafka, RabbitMQ, or Pub/Sub architectures.
We are looking for a Senior Node.js Developer responsible for managing the interchange of data between the server and the users. Your primary focus will be the development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well. Collaborate with front-end and back-end developers and designers to build website following client requirements.
Responsibilities
- Create clear, simple, and reusable code
- Develop all server-side logic, including data storage to optimize website performance
- Identify programming bottlenecks and bugs and find fixes
- Test, update and validate web applications to be used on different web browsers
- Execute automated testing platforms and system tests
- Familiarity with front-end technologies
- Attention to detail, especially in identifying and fixing errors.
Required Skills
- 3+ Years of experience in back-end development
- Knowledge and experience in Node js and Mongo DB
- Experience in Microservices Architecture

Great opportunity to work in Roots Innovations Pvt.ltd., We simplify the RPA (Robotic Process Automation) platform with AI-powered Bots to manage business processes & compliance for all types of industry sectors.
Profile – Backend Developer (Node JS)
Educational Qualification: BE/B.Tech/BCA/BCS/MSC/MCA/MCS/M.Tech(Certification course will be Advantage)
Experience - Fresher
Job Description:
· Implement a robust set of services and APIs to power the back-end application
· Optimize application for maximum speed and scalability
· Implementation of security and data protection
· Follow and understand architecture design and implementation on
development, testing, implementation, and documentation.
· Conduct reviews and conduct team training on the complex features of NodeJS.
· Analyze business/functional requirements and translate them into
concrete tasks
· Manage Product releases
Skill Set Required:
· Knowledge on NodeJs or any NodeJS frameworks
· Good knowledge of Relational and NoSQL databases (MongoDB)
· Exposure to Cloud Environments like AWS, MS Azure or Google Cloud
· Knowledge of an interest in Agile Methodologies, such as Extreme Programming (XP) and Scrum
· Knowledge of software best practices, like Test-Driven Development (TDD) and Continuous Integration (CI)

● At least 5 years' experience that includes at least 3 years of experience as Salesforce
developer in translating business requirements into working solutions using Salesforce
● Architect, design, implement, test and deliver applications and systems in Salesforce.
● Design and implement solutions to automate development tasks, releases, and
maintenance of the Salesforce platform.
● Build internal solutions, with custom front ends (web, mobile) and backend services that
automate business processes.
● Integrate third party products into internal systems as well as support and upgrade
implemented systems. Author design documents and present design reviews
● Work in an agile development environment making regular incremental progress. Partner
with LAM developers, Business Analysts in NYC to define and implement solutions that
improve internal business processes
● Expertise in batch, queueable and scheduled jobs, future methods, Apex and triggers
● Build shareable components with HTML, CSS, JavaScript and lightning framework like –
Aura and / or Lightning Web Components
● In depth understanding of SFDC Profiles/Roles and Sharing Rules, Validation Rules,
Tasks, Workflow rules, and Triggers, etc.
● Experience with developer practices for code bulkification to adhere to Salesforce
governor limits on such items as SOQL queries
● Ability to communicate effectively with the team
● Ability to identify gaps in functional/business requirements and should be able to
effectively communicate this to both Business analysts, Project lead / manager
● Experience Salesforce CRM with Sales & Service Cloud
Desired Qualifications:
● 5+ years of experience in coding with minimum 3 years in Salesforce
● Must have in Java/Web Services development.
● Must have 1+ year of Lightning Web Component & 2+ years of Aura (Lightning)
Component experience.
● Must have Salesforce Platform Developer 1 and / or Salesforce Advanced Developer
certification.
● Masters / Bachelors in Computer Engineering, Information Technology or relevant
engineering field.
● 3+ years Java development experience including solid experience in HTML, JavaScript,
jQuery, JSON, XML, REST, SOAP, CSS, SOQL & SOSL.
● 1+ year of experience with integrations using REST, SOAP Webservices.
Please Note, Job Timings are from 12 PM - 9 PM
● A Bachelor's degree in Computer Science or related field(or combined with related experience)
● Strong Expertise in Node.js/Javascript
● Hands-on experience in writing Node.js applications
● Deep knowledge of Restful APIs, Web Services, command-line programs and solid design principles.
● Knowledge of Node.js and frameworks like Express.js,Sails.js,StrongLoop, Meteor,Loopback.js, etc
● Knowledge of SQL and NoSQL database(MongoDB)
● Knowledge of tools like Docker, Git, Postman, JSdocs, etc.
● Well versed with front-end technologies - HTML5, and CSS3, AWS, GCP, Azure, Good hold on CLI
command, OS
● Proficiency in multiple programming languages, both dynamic(Javascript, Python, Ruby, etc.) and
strongly typed object-oriented language.
● Implementing automated testing platforms and unit tests.
● Must be a proven performer and team player that enjoys challenging assignments in a high energy,
fast growing and start-up workplace.
● Good communication and interpersonal skills

- Good experience on RESTful services
- .Hands on experience on NodeJs
- .Should have previous working experience on Sql and Postgresql
- Must have relevant experience in NodeJS from 3-5years.

Minimum 3+ Years of hands-on experience in developing Python Applications.
Excellent knowledge of Python and experience in or in-depth understanding of core Python
Knowledge in Lists, Tuples, and Dictionaries
Excellent knowledge of Python Constructor- Parameterized and Non-Parameterized
Must have experience in core python concepts about data structure, OOPS concepts, XML parsing, XML to JSON, optimizations
Developers should have developed Web Based applications., back end, SQL
Agile and scrum methodology
Should not be test automation, Application development frame work
Excellent Communication Skill
Good to Have
Django/ Flask
Strong Hands-on experience in HTML, CSS, DTL(Django Template Language), SASS.
knowledge of SQL


