JAVA Developer

Review Criteria

• Strong Senior Backend Engineer profiles
• Must have 5+ years of hands-on Backend Engineering experience building scalable, production-grade systems
• Must have strong backend development experience using one or more frameworks (FastAPI / Django (Python), Spring (Java), Express (Node.js).
• Must have deep understanding of relevant libraries, tools, and best practices within the chosen backend framework
• Must have strong experience with databases, including SQL and NoSQL, along with efficient data modeling and performance optimization
• Must have experience designing, building, and maintaining APIs, services, and backend systems, including system design and clean code practices
• Experience with financial systems, billing platforms, or fintech applications is highly preferred (fintech background is a strong plus)
• (Company) – Must have worked in product companies / startups, preferably Series A to Series D
• (Education) – Candidates from top engineering institutes (IITs, BITS, or equivalent Tier-1 colleges) are preferred

Role & Responsibilities

As a Founding Engineer at company, you'll join our engineering team during an exciting growth phase, contributing to a platform that handles complex financial operations for B2B companies. You'll work on building scalable systems that automate billing, usage metering, revenue recognition, and financial reporting—directly impacting how businesses manage their revenue operations.

This role is perfect for someone who thrives in a dynamic startup environment where requirements evolve quickly and problems need creative solutions. You'll work on diverse technical challenges, from API development to external integrations, while collaborating with senior engineers, product managers, and customer success teams.

Key Responsibilities-

• Build core platform features: Develop robust APIs, services, and integrations that power company’s billing automation and revenue recognition capabilities
• Work across the full stack: Contribute to both backend services and frontend interfaces, ensuring seamless user experiences
• Implement critical integrations: Connect company with external systems including CRMs, data warehouses, ERPs, and payment processors
• Optimize for scale: Build systems that handle complex pricing models, high-volume usage data, and real-time financial calculations
• Drive quality and best practices: Write clean, maintainable code while participating in code reviews and architectural discussions
• Solve complex problems: Debug issues across the stack and work closely with teams to address evolving client needs

The Impact You'll Make-

• Power business growth: Your code will directly enable billing and revenue operations for fast-growing B2B companies, helping them scale without operational bottlenecks
• Build critical financial infrastructure: Contribute to systems handling millions in transactions while ensuring accurate, compliant revenue recognition
• Shape product direction: Join during our scaling phase where your contributions immediately impact product evolution and customer success
• Accelerate your expertise: Gain deep knowledge in financial systems, B2B SaaS operations, and enterprise software while working with industry veterans
• Drive the future of B2B commerce: Help create infrastructure powering next-generation pricing models from usage-based to value-based billing.

Profile: 𝐍𝐨𝐝𝐞.𝐣𝐬 𝐁𝐚𝐜𝐤𝐞𝐧𝐝 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐞𝐫

Location: 𝐀𝐧𝐝𝐡𝐞𝐫𝐢 𝐄𝐚𝐬𝐭, 𝐌𝐮𝐦𝐛𝐚𝐢, 𝐌𝐚𝐡𝐚𝐫𝐚𝐬𝐡𝐭𝐫𝐚

Experience: 2+ 𝐘𝐞𝐚𝐫𝐬 𝐄𝐱𝐩

Work Mode: 𝐇𝐲𝐛𝐫𝐢𝐝

𝐓𝐞𝐜𝐡 𝐒𝐭𝐚𝐜𝐤:

✅ Node.js & Express.js

✅ MongoDB & Mongoose

✅ RESTful APIs & GraphQL

✅ JavaScript (ES6+) & TypeScript

✅ JWT Authentication

✅ Docker & Containerization

✅ Git Version Control

✅ Postman/Thunder Client

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

Location: Bangalore 

Experience: 7-10 years 

Job Type: Full-time 

Overview:

We are seeking a skilled Java Lead with 7-10 years of experience for our Bangalore office. The ideal candidate will have a strong background in Java development, team leadership, and client-facing roles.

Key Responsibilities:

- Lead a team of Java developers, providing guidance and mentoring to ensure high-quality code and timely delivery.

- Collaborate with clients to understand requirements, present solutions, and manage expectations.

- Design, develop, and maintain complex Java-based applications.

- Ensure the team adheres to best practices in coding, testing, and documentation.

- Manage project timelines, deliverables, and resources effectively.

- Troubleshoot and resolve technical issues, ensuring smooth project execution.

Required Skills:

- Java Development: Extensive experience in Java, including frameworks like Spring and Hibernate.

- Team Leadership: Proven ability to lead and mentor a team of developers.

- Client Interaction: Strong client-facing skills with experience in requirement gathering and solution presentation.

-Project Management: Experience in managing project timelines and resources.

Preferred Qualifications:

- Experience with microservices architecture and cloud platforms.

- Familiarity with agile development methodologies.

MUST HAVES:

• #java11, Java 17 & above only
• #springboot #microservices experience is must
• #cloud experience is must (AWS or GCP or Azure)
• Strong understanding of #functionalprogramming and #reactiveprogramming concepts.
• Experience with asynchronous programming and async frameworks/libraries.
• Proficiency in #sql databases (MySQL, PostgreSQL, etc.).
• WFO in NOIDA only.

Other requirements:

• Knowledge of socket programming and real-time communication protocols.
• Experience of building complex enterprise grade applications with multiple components and integrations
• Good coding practices and ability to design solutions
• Good communication skills
• Ability to mentor team and give technical guidance
• #fullstack skills with anyone of #javascript or #reactjs or #angularjs is preferable.
• Excellent problem-solving skills and attention to detail.
• Preferred experience with #nosql databases (MongoDB, Cassandra, Redis, etc.).

Looking for Software Developer - Node.js on urgent bases.

Job Description:

1.Hands on experience in Backend database.

2.Knowledge of Nodejs, React.

Exp: 1-2 Years

Qualification:Diploma/B.E/Technical Degree

Location :Andheri (E)

• Good understanding and experience of HTML / CSS / JavaScript.
• Hands-on experience with ES6 / ES7 / ES8 features.
• Thorough understanding of the Request Lifecycle (including Event Queue, Event Loop, Worker Threads, etc).
• Familiarity with security principles including SSL protocols, data encryption, XSS, CSRF.
• Expertise in Web Services / REST APIs will be beneficial.
• Proficiency in Linux and deployment on Linux are valuable.
• Knowledge about ORM like Sequelize and ODM like Mongoose and the ability to handle DB transactions is a necessity.
• Experience with Angular JS / React JS will be an added advantage.
• Expertise with RDBMS like MySQL / PostgreSQL will be a plus.
• Knowledge of AWS services like S3, EC2 will be helpful.
• Understanding of Agile and CI/CD will be of value.

Job Description :

LOCATION: Bangalore