Backend SDE-2

🚀 Job Title : Backend Engineer (Go / Python / Java)

Experience : 3+ Years

Location : Bangalore (Client Location – Work From Office)

Notice Period : Immediate to 15 Days

Open Positions : 4

Working Days : 6 Days a Week

🧠 Job Summary :

We are looking for a highly skilled Backend Engineer to build scalable, reliable, and high-performance systems in a fast-paced product environment.

You will own large features end-to-end — from design and development to deployment and monitoring — while collaborating closely with product, frontend, and infrastructure teams.

This role requires strong backend fundamentals, distributed systems exposure, and a mindset of operational ownership.

⭐ Mandatory Skills :

Strong backend development experience in Go / Python (FastAPI) / Java (Spring Boot) with hands-on expertise in Microservices, REST APIs, PostgreSQL, Redis, Kafka/SQS, AWS/GCP, Docker, Kubernetes, CI/CD, and strong DSA & System Design fundamentals.

🔧 Key Responsibilities :

• Design, develop, test, and deploy backend services end-to-end.
• Build scalable, modular, and production-grade microservices.
• Develop and maintain RESTful APIs.
• Architect reliable distributed systems with performance and fault tolerance in mind.
• Debug complex cross-system production issues.
• Implement secure development practices (authentication, authorization, data integrity).
• Work with monitoring dashboards, alerts, and performance metrics.
• Participate in code reviews and enforce engineering best practices.
• Contribute to CI/CD pipelines and release processes.
• Collaborate with product, frontend, and DevOps teams.

✅ Required Skills :

• Strong proficiency in Go OR Python (FastAPI) OR Java (Spring Boot).
• Hands-on experience building Microservices-based architectures.
• Strong understanding of REST APIs & distributed systems.
• Experience with PostgreSQL and Redis.
• Exposure to Kafka / SQS or other messaging systems.
• Hands-on experience with AWS or GCP.
• Experience with Docker and Kubernetes.
• Familiarity with CI/CD pipelines.
• Strong knowledge of Data Structures & System Design.
• Ability to independently own features and solve ambiguous engineering problems.

⭐ Preferred Background :

• Experience in product-based companies.
• Exposure to high-throughput or event-driven systems.
• Strong focus on code quality, observability, and reliability.
• Comfortable working in high-growth, fast-paced environments.

🧑‍💻 Interview Process :

• 1 Internal Screening Round
• HR Discussion (Project & Communication Evaluation)
• 3 Technical Rounds with Client

This is a fresh requirement, and interviews will be scheduled immediately.

Job Description:

1. Experience in Core Java, Spring Boot.
2. Experience in microservices.
3. Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
4. Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
5. Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
6. Good knowledge of multi-threading
7. Basic working knowledge of Unix/Linux
8. Excellent problem solving and coding skills in Java
9. Strong interpersonal, communication and analytical skills.
10. 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.

We are looking for a skilled Backend Developer with strong experience in building, scaling, and optimizing server-side systems. The ideal candidate is proficient in Node.js, FastAPI (Python), and database design, with hands-on experience in cloud infrastructure on AWS or GCP.

Responsibilities:

Design, develop, and maintain scalable backend services and APIs using Node.js and FastAPI

Build robust data models and optimize performance for SQL and NoSQL databases

Architect and deploy backend services on GCP/AWS, leveraging managed cloud services. 

Implement clean, modular, and testable code with proper CI/CD and observability (logs, metrics, alerts)

Ensure system reliability, security, and high availability for production environments

Requirements:

2–5 years of backend development experience

Strong proficiency in Node.js, FastAPI, REST APIs, and microservice architecture

Solid understanding of PostgreSQL/MySQL, MongoDB/Redis or similar NoSQL systems

Hands-on experience with AWS or GCP, Docker, and modern DevOps workflows

Experience with caching, queueing, authentication, and API performance optimization

Good to Have:

Experience with event-driven architecture, WebSockets, or serverless functions

Familiarity with Kubernetes or Terraform

Job Location: Gurugram, Haryana, India

Industry: Artificial Intelligence

Role : Nodejs developer

Please find below the JD for the Nodejs developer..

 Role: NodeJs Developer 

We are looking for a 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. A basic understanding of front-end technologies is necessary as well. Responsibilities

 • Collaborate with other members of the team, such as front-end developers

 • Writing reusable, testable, and efficient code 

• Design and implementation of low-latency, high-availability, and performant applications 

• Implementation of security and data protection

 • Integration of data storage solutions • Writing unit test cases • Documenting application changes and developing updates. 

Skills 

• Strong proficiency with JavaScript 

• Experience of Node.js and frameworks available such as Express

 • Practical experience with REST, PostgreSQL, WebSocket, MongoDB, Redis. 

• Understanding the nature of asynchronous programming and its quirks and workarounds 

• User authentication and authorization between multiple systems, servers, and environments 

• Integration of multiple data sources and databases into one system 

• Understanding differences between multiple delivery platforms, such as mobile vs. desktop, and optimizing output to match the specific platform • Creating database schemas that represent and support business processes

 • Implementing automated testing platforms and unit tests

 • Proficient understanding of code versioning tools, such as Git

 • Good understanding of front-end technologies, such as HTML5, and CSS3  

• Develop and maintain server-side logic using Node.js, JavaScript, and Python.
• Collaborate with front-end developers, designers, and product managers to create scalable and responsive web applications.
• Design and implement APIs and web services to facilitate seamless integration with other systems.
• Optimize applications for maximum speed, scalability, and reliability.
• Identify and troubleshoot performance bottlenecks and implement effective solutions.
• Ensure the security and data protection of the backend systems.
• Write efficient and reusable code, following industry best practices and coding standards.
• Conduct code reviews and provide constructive feedback to improve code quality.
• Stay up-to-date with the latest industry trends and technologies to drive continuous improvement.
• Participate in the entire software development lifecycle, from requirements gathering to deployment and maintenance.

1. Hands on experience in designing and developing applications using NodeJS and have at least 3 - 4
2. years’ experience on the same.
3. Should have excellent in-depth knowledge on Nodejs and Mongo DB.
4. Working knowledge of RESTful web services.
5. Basic understanding of front-end technologies, such as HTML5, and CSS3.
6. Integration of user-facing elements developed by front-end developers with server side logic
7. Design and implementation of low-latency, high-availability, and performant applications
8. Proficient understanding of code versioning tools, such as Git
9. Good communication skills.
10. Experience in working effectively within a team.

• Work with product managers to understand product requirements and make them live.
• Ownership of end to end development

• Startup mindset of getting things done and focussing on business goals
• Proven problem solving skills
• 3+ years Hands on experience in designing and developing applications using server side technology (Java, Spring Boot / Node.js, Express)
• Excellent knowledge of Relational Databases, SQL and ORM technologies
• Good knowledge of design patterns
• Proficiency in REST architecture
• Experience with test-driven development
• Experience with Git/CI/CD/Gradle/Maven
• Inclination towards writing quality and performant code

• Experience in Agile development
• Performance tuning, testing, refactoring and automation
• Experience working with AWS Cloud and Devops technologies (terraform , cloudformation, ansible)
• Experience running a production environment
•  

• Minimum 2 years experience on MEAN Stack
• Extensive hands-on experience in Node JS/Express/Hapi JS, Moleculer and NoSQL DBs (Mongodb and Redis are preferred)
• Strong coding and designing skills
• Working understanding of Continuous Integration and Continuous Deployment concepts and tools such as (Gitlab CI/CD), Development tools (Git), Application Servers (nginx, Apache)
• Experience in consuming and developing secure RESTful API/web-services
• Comfortable using Unix / Linux machines from command prompt
• As a full-stack architect in the team, you'll bring your ideas to life on a technology stack of Node JS and NoSQL Databases among others.
• We are looking for tech geeks who are hands-on and in love with building scalable, distributed and large web / mobile products.
• You must be an excellent problem solver with passion to self-learn and implement backend technologies
• You would be responsible for the architecture design, code review and technology build and deployment activities of web/mobile applications.
• Own the product development from scratch - Architect scalable, distributed and large scale web and mobile solutions from scratch
• You would be responsible for writing SRS and require strong technical writing and communication skills
• You would be responsible for managing and mentoring your team members and help them advance in their learning and career goals
• Ensure test driven development (TDD) methodologies are deployed to execute project
• Define and ensure right coding practices
• Code for fresh development and to troubleshoot and resolve issues
• Lead web development efforts, including hiring, mentoring and advising peers

The ideal candidate is a highly resourceful and innovative developer with extensive experience in the Node Js . You must also possess a strong knowledge of Mongo DB

Responsibilities

• Perform a mix of maintenance, enhancements, and new development as required
• Work in a data analyst role and with business intelligence applications
• Document features, technical specifications & infrastructure Responsibilities
• Work cross-functionally to convert business needs into technical specifications

Qualifications

Back-end technologies& Front-end (HTML, JavaScript, CSS), Node js,Mongo Database, MySQL databases

• 1+ years' of experience in web development and software design
• Expertise in Strapi will be a plus point
• should be able to create the APIs
• Payment Gateway Integration( Stripe)