11+ OSS Jobs in Mumbai | OSS Job openings in Mumbai

We are looking for an experienced Telecom OSS/BSS Architect with strong expertise in designing and implementing end-to-end telecom solutions.

Key Skills:

• Telecom OSS & BSS Architecture

• CRM, Product Catalog, Order Management

• Billing, Charging & Revenue Assurance

• Service Provisioning, Network Inventory & Service Assurance

• Fault & Performance Management

• Telecom Digital Transformation

• TM Forum (eTOM, SID, Open APIs, ODA)

• API Integrations, ESB & Microservices

• Cloud-Native Architecture

• System Integration & Modernization

Responsibilities:

• Design and implement scalable OSS/BSS solutions.

• Translate business requirements into technical solutions.

• Drive telecom transformation and modernization initiatives.

• Integrate OSS/BSS platforms with enterprise systems.

• Collaborate with business, IT, network operations, and vendor teams.

• Support automation, operational efficiency, and customer experience improvements.

Looking For:

• 5–8 years of relevant Telecom OSS/BSS experience
• Strong understanding of Telecom domain architecture
• Experience in large-scale telecom transformation projects
• Excellent stakeholder management and communication skills

Job Title: KDB+ Developer (Q Programming)

Location: Mumbai, India

Experience: 3 to 5 Years

Employment Type: Full-time

Job Description

We are seeking a highly skilled KDB+ Developer with hands-on experience in Q programming language to join our dynamic team in Mumbai. As part of our organization, you will play a key role in designing, developing, and maintaining time-series databases and analytics systems for high-performance financial applications.

Key Responsibilities

Develop and maintain KDB+ databases and applications.

Design, implement, and optimize data models and queries using Q programming language.

Work closely with stakeholders to gather requirements and deliver technical solutions for large-scale, real-time analytics.

Integrate KDB+ with other technologies and platforms.

Troubleshoot and resolve issues in the KDB+ environment to ensure optimal performance and uptime.

Collaborate with cross-functional teams to deliver end-to-end solutions in a fast-paced environment.

Required Skills and Qualifications

3 to 5 years of experience in KDB+ development with strong proficiency in Q programming language.

Expertise in building scalable, high-performance applications using KDB+.

Strong analytical and problem-solving skills.

Familiarity with real-time data processing and time-series databases.

Knowledge of financial markets and trading systems is a plus.

Ability to work collaboratively in a team-oriented environment.

Excellent communication skills and attention to detail.

Preferred Skills

Knowledge of Python, Java, or other programming languages is a bonus.

Experience in Linux/Unix environments.

Exposure to cloud technologies is an added advantage.

If you are passionate about working on large-scale data systems and solving complex problems, we would love to hear from you!

We’re looking for a Backend Developer (Python) with a strong foundation in backend technologies and

a deep interest in scalable, low-latency systems.

Key Responsibilities

• Develop, maintain, and optimize backend applications using Python.

• Build and integrate RESTful APIs and microservices.

• Work with relational and NoSQL databases for data storage, retrieval, and optimization.

• Write clean, efficient, and reusable code while following best practices.

• Collaborate with cross-functional teams (frontend, QA, DevOps) to deliver high quality features.

• Participate in code reviews to maintain high coding standards.

• Troubleshoot, debug, and upgrade existing applications.

• Ensure application security, performance, and scalability.

Required Skills & Qualifications:

• 2–4 years of hands-on experience in Python development.

• Strong command over Python frameworks such as Django, Flask, or FastAPI.

• Solid understanding of Object-Oriented Programming (OOP) principles.

• Experience working with databases such as PostgreSQL, MySQL, or MongoDB.

• Proficiency in writing and consuming REST APIs.

• Familiarity with Git and version control workflows.

• Experience with unit testing and frameworks like PyTest or Unittest.

• Knowledge of containerization (Docker) is a plus.

Job Description: Python-Azure AI Developer

Experience: 5+ years

Locations: Bangalore | Pune | Chennai | Jaipur | Hyderabad | Gurgaon | Bhopal

Mandatory Skills:

• Python: Expert-level proficiency with FastAPI/Flask
• Azure Services: Hands-on experience integrating Azure cloud services
• Databases: PostgreSQL, Redis
• AI Expertise: Exposure to Agentic AI technologies, frameworks, or SDKs with strong conceptual understanding

Good to Have:

• Workflow automation tools (n8n or similar)
• Experience with LangChain, AutoGen, or other AI agent frameworks
• Azure OpenAI Service knowledge

Key Responsibilities:

• Develop AI-powered applications using Python and Azure
• Build RESTful APIs with FastAPI/Flask
• Integrate Azure services for AI/ML workloads
• Implement agentic AI solutions
• Database optimization and management
• Workflow automation implementation

Greetings!

Wissen Technology is hiring for Java developers/Lead.

Required Skillset

• 6+ years of industrial experience
• Java and related frameworks.
• Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
• Exposure on Fintech domain is mandatory
• Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS
• Good knowledge of multi-threading and high volume server side development
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.

Company Profile:

Company Name : Wissen Technology

Group of companies in India : Wissen Technology & Wissen Infotech

Work Location - Bangalore

Website : www.wissen.com

Wissen Thought leadership : https://www.wissen.com/articles/

LinkedIn: https://www.linkedin.com/company/wissen-technology

hiring for the position of Backend Developer / Senior Backend Developer responsible for managing back-end services and 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.

We are looking to recruit a candidate for a role that will require:

• Create and consume restful APIs
• Design, develop, and maintain internal and external applications
• Build efficient, testable, and reusable modules
• Write high quality, structured application/interface code and documentation
• Identify solutions through research and collaboration that resolves the root of problems as they arise
• Define functional and technical requirements for application software to develop skills and knowledge
• Troubleshoot, test and maintain the core product software and databases to ensure strong optimization and functionality
• Contribute in all phases of the development lifecycle

Requirement

∙ Proficient in Node.JS

∙ 2+ years’ experience designing, querying, and updating databases in MySQL/nosql 

∙ Passion for best design and coding practices and a desire to develop new bold ideas

∙ Good to have knowledge of AWS, Redis, ElasticSearch

Education: Min. Graduate in related discipline

Work experience: 2 years relevant experience

Requirements / Experience:

• 4-8+ years of PHP application development experience
• Strong Experience using Laravel/CodeIgniter/ Symfonyframeworks
• Strong experience and theoretical knowledge of PHP
• Front end and back end development expertise
• JavaScript (Vue.js, React, node, Typescript, RequireJS)
• Front end frameworks (Bootstrap, Tailwind, etc.)
• Good background with SQL Databases (writing queries, optimization, query builders usage, ORMs)
• API development and documentation (OpenAPI)
• Troubleshooting (ability to react in the most effective manner to eliminate technical issues)
• Solution-Making (ability to propose the most effective technical solutions)
• NoSQL experience is nice to have
• Ability to work on existing live projects and do the modifications as required. 
• Ability to work independently and in a team as well