MEAN Stack Developer - Node.js/Express.js/MongoDB

Oister Global (www.oisterglobal.com) is India’s premier Alternative Assets Manager. We combine robust diligence, deep domain expertise, and an extensive network to create high quality private market opportunities for our investors.

We are seeking a Senior Backend Developer who will be pivotal in architecting and developing scalable, reliable backend systems from scratch. You will work closely with product managers, designers, and other engineers to build new products, design backend architectures, and ensure high performance and responsiveness of the systems. This role requires strong backend fundamentals, cloud experience, a deep understanding of databases, and a passion for system design and architecture.

Key Responsibilities:

● Product Development: Architect, design, develop, test, and deploy new backend products and features from scratch.

● System Design: Take ownership of system design and architecture decisions for new modules, ensuring scalability, reliability, and security. ● API Development: Build efficient and reusable APIs and backend services using Node.js.

● Database Management: Design data models, optimize queries, and manage MongoDB clusters efficiently.

● Cloud Management: Deploy, maintain, and optimize services on AWS, ensuring high availability and performance.

● Best Practices: Maintain coding standards, ensure code reviews, and champion best practices in security, testing, and maintainability.

● Collaboration: Work closely with frontend developers, product managers, QA, and other cross-functional teams to define, design, and ship new features.

● Performance Optimization: Monitor system performance and ensure system uptime and responsiveness.

● Mentorship: Provide guidance and mentorship to junior developers as required.

● Documentation: Maintain thorough documentation of systems, processes, and best practices. Must-Have

Qualifications:

● Education: Bachelor’s degree in computer science, Software Engineering, or a related technical field.

● Experience: 4–5+ years of hands-on backend development experience.

● Expertise in: Node.js (Express.js, Nest.js or similar frameworks) MongoDB (including indexing, replication, sharding concepts) AWS Services (EC2, S3, Lambda, RDS, API Gateway, CloudWatch, IAM, etc.) Proficient in: System design principles Microservices architecture Event-driven architecture Strong understanding of: RESTful APIs.Authentication and authorization best practices (OAuth, JWT) Experience with: CI/CD pipelines Docker and containerization principles Hands-on experience in: Building scalable, distributed, and fault-tolerant systems Good knowledge of : Logging, monitoring, and debugging distributed applications

1. Need to have an understanding of Elastic Search, Kafka, mongo DB, etc.

2. Should have experience of Jupter noobooks, data bricks

3. Java, Pythons

4. Senior level, 5-10 years of experience

5. It is important they have those skills so that they can take over current work. There are codes written in both Java as well as Python. (Java is legacy but that is the main search engine code). So it will be counter-productive if engineers hired have experience in both.

6. Excellent communication, analytical, research, grasping skills

Roles & Responsibilities JOB TITLE: AEM Developer - Senior

RESPONSIBILITIES:

1. Participation in software development and maintenance

processes as per quality requirements, procedures and best

practices applicable.

2. Implementing, optimizing and supervising efficiency of IT

systems in accordance with specific standards, resolution or

escalation of problems, as appropriate.

3. Drawing up technical documentation.

4. Developing knowledge in scope of information technology used.

5. Developing knowledge in scope of best practices and standards

of creating software.

6. Developing soft skills in scope of effective communication and

efficient teamwork, solution presentation and knowledge sharing.

7. Interpreting business cases, preparing specifications and

analyzing functional and technical requirements.

8. Designing solutions and creating documentation, estimating

individual scope of works and time consumption of works.

9. Within the team and project/services, proactively identifying

problems and proposing measures to increase the level of services.

10. Developing knowledge in scope of information technology

used.

11. Developing knowledge in scope of best practices and standards

of creating software.

12. Spreading the knowledge throughout the organization by

educating and supporting less experienced Specialists.

13. Maintaining industry standards and practices in projects.

14. Performing tasks assigned by the superior.

PROFESSIONAL EXPERIENCE& TECHNICAL SKILLS

1. Minimum 3 years of experience in work related to CQ/AEM

development.

2. Minimum 5 years of experience in work related to Java

development in IT sector.

SOFT SKILLS:

1. Independence in performance of tasks assigned.

2. Team and end user communications skills.

3. Skills to acquire knowledge and put it in practice.

4. Work time estimation based on functional or technical

requirements.

5. Recommending employment in the case of reviewing technical

knowledge of candidates in recruitment process.

6. Work time estimation.

7. Designing and supervising implementation of solutions.

SPECIAL QUALIFICATIONS: Nice to have: AEM 6 Developer

certification

Skills Primary Skills –

1. AEM including Sling Models

2. Apache Sling

3. JCR

4. Sightly (must)

Secondary Skills –

1. OSGi (Apache Felix),

2. Java, JavaEE (Servlet, Filter, JSP)

3. Git

4. Junit

5. Maven

6. REST

7. Object Oriented Design Patterns, Basic HTML + JavaScript

Experience Total Experience – 4-6 years

Relevant Experience – 4-6 years

Qualification Required to perform the

Job (Any Certifications if Needed)

Bachelor’s in information technology or equivalent qualifications.

We're on a mission to make it possible for every person, team, and company to be able to tailor their software to solve any problem and take on any challenge. Computers may be our most powerful tools, but most of us can't build or modify the software we use on them every day. At Notion, we want to change this with focus, design, and craft.

We've been working on this together since 2016, and have customers like Pixar, Mitsubishi, Figma, Plaid, Match Group, and thousands more on this journey with us. Today, we're growing fast and excited for new teammates to join us who are the best at what they do. We're passionate about building a company as diverse and creative as the millions of people Notion reaches worldwide.

Millions of people use Notion — and this number is increasing every day. That means a million people trust us to deliver a fast, reliable, and secure experience, and we value this more than anything. We want to keep earning trust, while also continuing to amaze our users with the tools they can build in Notion. This is where you come in — to help us forge a performant and reliable path forward to the future.

• Write clean, secure, tested, and documented code.
• Design & enhance the Notion platform with new capabilities, as and when the need arises.
• Contribute to monitoring & scaling the architecture of the platform and the infrastructure.
• Write technical documentation, and contribute to determining internal processes.
• Contribute to recruiting of new backend employees

• 6+ years of experience building scalable platforms. 
• Good understanding of database (Relational Or Nosql) internals like transactions, indexes. Experience in schema design.
• 2+ years of experience working on the AWS platform, and acquaintance with technologies like Elastic Beanstalk, AWS Lambda, Elastic Load Balancer.
• Good understanding of docker internals.
• Good communication skills, good leadership skills, attention to detail, a sound understanding of algorithms, and object-oriented programming.

• You're proficient with any part of our technology stack: React, TypeScript, Node.js, Memcached, Postgres, Docker, and Elasticsearch.
• You've heard of computing pioneers like Ada Lovelace, Douglas Engelbart, Alan Kay, and others—and understand why we're big fans of their work.
• You have interests outside of technology, such as in art, history, or social sciences.

Our customers come from all walks of life and so do we. We hire great people from a wide variety of backgrounds, not just because it's the right thing to do, but because it makes our company stronger. If you share our values and our enthusiasm for small businesses, you will find a home at Notion.

Notion is proud to be an equal opportunity employer. We do not discriminate in hiring or any employment decision based on race, color, religion, national origin, age, sex (including pregnancy, childbirth, or related medical conditions), marital status, ancestry, physical or mental disability, genetic information, veteran status, gender identity or expression, sexual orientation, or other applicable legally protected characteristic. Notion considers qualified applicants with criminal histories, consistent with applicable federal, state and local law. Notion is also committed to providing reasonable accommodations for qualified individuals with disabilities and disabled veterans in our job application procedures. If you need assistance or an accommodation made due to a disability, please let your recruiter know.

Job Position: JAVA Software Engineer
Job Location: Bangalore

Experience: 2 to 12 years

Job Responsibilities:
• Responsible for developing Web Applications using J2EE components.
• Responsible for developing standalone applications using Core Java and JDBC.

Desired Qualification: BE / B.Tech / MCA / MSc in Computer Science or IT

Added advantage: Sun Certified Java Programmer (SCJP), Sun Certified Web Component Developer (SCWCD) certification

Desired Skills:

• Strong skills in JAVA programming languages and focus specially on the following areas Servlets, JSP, Web Services, Struts framework, JDBC/JPA/mybatis (ibatis)/Hibernate, Threads, Collections and Design Patterns.
• Strong skills in web technologies HTML 4/5, JQuery, AJAX, Java Script and CSS.
• Thorough understanding of Object Orientation.
• Above average skills in SQL with familiarity in any of the standard RDBMS – MySQL, MSSQL or Oracle.
• Must have good written and oral communication in English language.
• Must be completely hands-on and an individual contributor and a self-starter; must be able to complete assignments (suitable to his/her experience) with minimal assistance.
• Very good at Analytical and Logical skills.
• Solid understanding of the web development lifecycle.
• Ability to learn quickly and deliver software on time.

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.

Responsibilities and Duties
Primary Responsibilities:
- Write Elegant, Testable Code
- Design and implementation of low-latency, high-availability, and performant applications
- Implementation of security and data protection
- Build and Deploy Code
- Build Fast, Reliable REST APIs
- Adding New Features
- Enhancing Existing Code and Features
- Comfortable with Agile and Iterative Development along with code reviews

Job Description:

We are looking for a Ruby on Rails developer responsible for managing the interchange of data between the server and the users. Your primary focus will be 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.

Job Responsibilities:

• Design, build, and maintain efficient, reusable, and reliable Ruby code.
• Integration of data storage solutions.
• Integration of user-facing elements developed by front-end developers with server side logic.
• Identify bottlenecks and bugs, and devise solutions to these problems.
• Help maintain code quality, organization and automatization.

Job Requirements:

• Knowledge of Ruby on Rails, Ruby, SQL, JavaScript and Git.
• Experience with Shopify, ReactJs, JQuery CSS, HTML would be plus.
• Strong grasp of TDD and BDD.
• Experience with Heroku or AWS or DigitalOcean.
• A knack for writing clean, readable Ruby code.