
Qualifications:
- Bachelor's degree in Computer Science Engineering, or a related field (or equivalent experience).
- At least 7 years of experience in back-end development, specifically with Node.js.
- Strong understanding of JavaScript and TypeScript would be a plus.
- Experience with asynchronous programming and event-driven architecture.
- Familiarity with RESTful APIs and/or GraphQL.
- Proficient in working with databases (e.g., PostgreSQL).
- Knowledge of version control systems, particularly Git.
- Experience with cloud services (e.g., Azure Cloud) and containerization tools (e.g., Docker).
- Strong problem-solving skills and the ability to work independently as well as part of a team.
- Excellent communication and collaboration skills.

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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1) Be open to learn new frameworks like Hapi.JS , Typescript , Nest.JS
2) Strong DB concepts , and hands on knowledge on MongoDB , REDIS
3) Experience working with micro-services will be a plus
4) Experience working with JWT and IAM systems will be a plus
5) Experience working with Postman , Swagger will be a plus
6) TDD knowledge is an advantage and also working with Unit Test code and familiar with test code coverage concepts.
7) Strong operating system knowledge is a plus with knowledge of how to manage threads.
8) Working experience with RabbitMQ , Kafka will be a plus
9) Strong knowledge of JS internals is a must.
About OJ Commerce:
OJ Commerce is a fast-growing, profitable online retailer based in Florida, USA with a full-fledged India office based in Chennai driven by a sophisticated, data-driven system to run the operations with virtually no human intervention. We strive to be the best-in-class ecommerce company delivering exceptional value to customers by leveraging technology, innovation and brand-partnerships to provide a seamless & enjoyable shopping of high-quality products at the best prices to our customers.
Responsibilities:
Work with business-stakeholders to understand requirements, prototype, build and deploy it.
CRUD the backend code you own keeping maintenance, performance and security in mind.
Keep up breast of latest technologies and its ecosystem and adopt ones that aid safe product delivery at speed.
Automate the boring and mundane stuff for you prefer to be productive than being busy.
We are flat. Be responsible for professional growth of self and the team.
- Tune application for performance.
- Take initiatives and manage change to work towards business goals at speed without compromising safety.
- Coach full-stack developers on backend skills.
- Provides problem resolution support, specific to application issues, identifies and resolves problems in application software, determines symptoms and ensures accurate problem definition
Develop functional, architectural and other documentation as required for productive functioning of teams.
- Be the brand ambassador for OJ Commerce by speaking at meetups, conferences, etc.
- We are fluid. Be ready for changing dynamics in responsibilities from time to time. Exciting isn't?
- Take the lead in digital transformation of legacy applications.
What you need to shine?
- You have the prior experience in modernising legacy applications.
- You are a passionate hands-on developer with deep experience in building enterprise grade software in Microsoft ASP.NET Core, ASP.NET MVC, Web API, SOA, Micro-Services and RESTful Services with knowledge of SQL Server database.
- You have the ability to see and work on the big picture (Application Architecture) and devilish details (Complex Code).
- Strong experience in developing web applications using C#, VB.Net, .NET, LINQ, Net Framework 4.0, MVC 3/4/5, ASP.NET Web API, .Net Core etc.
- You are Cloud savvy, preferably Google Cloud.
- You have rich experience in Object-Oriented Programming (OOP) with good knowledge of practical design-patterns and its applications.
Hands-on experience in building SOA or Micro-services preferably on .NET Core.
Proven Architectural skills with high standards in Code quality
Knowledge of ReactJS/Typescript would be added advantage.
Practical experience in Agile development methodologies of using CI/CD.
Extreme Programming (TDD) experience is sought after by us.
What we Offer
- Greenfield opportunity to transform legacy backend applications to latest technology stack.
- Fast-paced start-up environment: This is not for the faint hearted; you need grit and passion as much as you need the core skills.
- Work in an interdisciplinary team where learning from one another and developing solutions cross-functionally is a key part of our culture.
- Golden opportunity to make history by making big business impact.
- Competitive salary to take good care of self and family.
- Insurance Benefits: Medical and Accident cover.
- Flexible Working Hours
Job Description
Duties & Responsibilities
Qualifications & Experience
BE / B-Tech degree and 2+ years of work experience, or ME / MS degree and 2+ years of work experience, in Computer Science.
Server Development. Frontend Development can be an advantage.Preferred Skills & Knowledge
- Strong programming skills in Python/Django
- Experience with Angular, JavaScript frameworks/libraries
- Hands on experience with MySQL, PostGreSQL or other RDBMS
- Experience with Web application security and Secure coding practices
- Strong Analytical thinking and problem solving ability
- Familiarity with software collaboration tools – GIT
- Ability to work with a distributed and diverse team of researchers and developers.
- Excellent English language communication skills, both written and verbal.
- High level of innovation and motivation
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Must Have: •At least 6+ years in web services development and solid understanding of web technologies in JAVA •Strong Expertise in building & deploying application on any of the major cloud platforms (GCP, AWS, Azure) •Strong expertise with Docker/Kubernetes •Working knowledge of building Micro Services, RESTful web Services using any framework (Spring Boot, JaxRS, Jersey) •Strong Expertise of writing JUnits & How to configure it through maven •Good understanding of NoSQL databases and have worked upon any one of them (HBase, Cassandra, Big query, Mongo) •Good understanding of Message Queues and have worked upon any one of them (Kafka, RabbitMQ, Pub Sub) •Good understanding of Maven, Git •Good understanding of Jenkins, CI/CD architecture •Good understanding of Programming Algorithms and Data Structures •Experience with BDD & Cucumber
Good to Have: •Monitoring experience – Stackdriver or Prometheus or Azure equivalent •Operational readiness – SLI/SLO, DevOps experience •Service mesh – ex: Istio •Any OpenShift experience •Knowledge on Graph technology •Have worked upon any of the big data technologies •Have worked upon tools like white source, Veracode... •Knowledge of Python and Angular •Integration tests using BDD Framework (Cucumber) •Good understanding of Streaming technologies and processing engines (Dataflow, Flink, Spark) •Knowledge of VSTS |
Working on APIs, web apps, asynchronous message processing systems,& desktop applications
2) developing and testing software and resolving technical issues that arise
3) Prepare and maintain all applications utilizing standard development tools
4) Utilize backend data services and contribute to increasing existing data services API
5) Lead the entire development life cycle right from concept stage to delivery and post-launch support
6) Convey effectively with all task progress, evaluations, suggestions, schedules along with technical and process issues
7) Document the development process, architecture, and standard components
8) Coordinate with co-developers and keeps project manager well informed of the status of development effort and serves as a liaison between development staff and project manager
9) Keep abreast of new trends and best practices in web development
10) Fixing bugs
Responsibilities:
- Ability to work in an existing codebase and collaborate with a diverse team
- Experience in building enterprise-scale backend REST APIs with frameworks such as Nest.js & Express.js using an API-first paradigm
- Intimate knowledge of crafting highly performant database queries
- Hands-on experience implementing relational database structures, including tables, indexes, views, etc.
- A mindset towards building systems for the cloud and DevOps fundamentals
- Working knowledge of cloud infrastructure services is good to have. If not then willingness to learn should be there.
- Focus towards building security, performance, and scalability into services from the beginning
- Experience with debugging code and troubleshooting technical issues in order to craft appropriate solutions
Responsibilities
- Work with the architect in identifying modules, interfaces, functionality to be developed
- Participate in the entire application lifecycle, focusing on coding and debugging
- Write clean code to develop functional web application, addressing technical and design requirements
- Understand and implement heuristic algorithms as necessary
- Troubleshoot and debug applications
- Create and maintain upto date documentation
- Collaborate with Front-end developers to integrate user-facing elements with server side logic
- Provide training and support to internal teams
- Build reusable code and libraries for future use
- Liaise with developers, architects, designers and system administrators to identify and incorporate new features
Requirements
- Proven work experience in Java as a Back-end developer
- In-depth understanding of the entire web development process (design, development and deployment)
- Hands on experience with programming languages like https://resources.workable.com/back-end-developer-job-description" target="_blank">Java and Python
- Hands on experience in relational and non relational databases
- Working knowledge of CMS framework
- Familiarity with front-end languages (e.g. HTML, JavaScript and CSS)
- Excellent analytical and time management skills
- Teamwork skills with a problem-solving attitude
- BE/ MS degree in Computer Science or relevant field








