
Experience: 5 TO 8
Location: MUMBAI
Wissen Technology is now hiring for a Java Developer - MUMBAI with hands-on experience in Core Java, algorithms, data structures, multithreading and SQL. We are solving complex technical problems in the industry and need talented software engineers to join our mission and be a part of a global software development team. A brilliant opportunity to become a part of a highly motivated and expert team which has made a mark as a high-end technical consulting.
Required Skills:
- Exp. - 5 TO 8 years
- Experience in Core Java and Spring Boot.
- Extensive experience in developing enterprise-scale applications and systems. Should possess good architectural knowledge and be aware of enterprise application design patterns.
- Should have the ability to analyze, design, develop and test complex, low-latency client- facing applications.
- Good development experience with RDBMS.
- Good knowledge of multi-threading and high-performance server-side development.
- Basic working knowledge of Unix/Linux.
- Excellent problem solving and coding skills.
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
About Us:
At Wissen Technology, we deliver niche, custom-built products that solve complex business challenges across industries worldwide.
Founded in 2015, our core philosophy is built around a strong product engineering mindset—ensuring every solution is architected and delivered right the first time. Our commitment to excellence translates into delivering 2X impact compared to traditional service providers. How do we achieve this? Through a combination of deep domain knowledge, cutting-edge technology expertise, and a relentless focus on quality.
We don’t just meet expectations—we exceed them by ensuring faster time-to-market, reduced rework, and greater alignment with client objectives. We have a proven track record of building mission-critical systems across industries, including financial services, healthcare, retail, manufacturing, and more.
Wissen stands apart through its unique delivery models. Our outcome-based projects ensure predictable costs and timelines, while our agile pods provide clients the flexibility to adapt to their evolving business needs. Whether it’s AI/ML for unstructured data processing, cloud enablement, or data engineering, Wissen leverages its thought leadership and technology prowess to drive superior business outcomes. Our success is powered by top-tier talent. Our proprietary Interview Ninja platform ensures we hire the best, building high-performing teams that deliver unmatched results.
Today, Wissen Technology has a global footprint with 2200+ employees across offices in the US, UK, UAE, India, and Australia. Our mission is clear: to be the partner of choice for building world-class custom products that deliver exceptional impact—the first time, every time.

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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Python Software Engineer (3–5 Years Experience)
Location: [Pune]
Role Overview
We are seeking skilled Python engineers to join our core product team. You will work on backend services, API development, and system integrations, contributing to a codebase of over 250,000 Python lines and collaborating with frontend, DevOps, and native code teams.
Key Responsibilities
· Design, develop, and maintain scalable Python backend services and APIs
· Optimize performance and reliability of large, distributed systems
· Collaborate with frontend (JS/HTML/CSS) and native (C/C++/C#) teams
· Write unit/integration tests and participate in code reviews
· Troubleshoot production issues and implement robust solutions
Required Skills
· 3–5 years of professional Python development experience
· Strong understanding of OOP, design patterns, and modular code structure
· Experience with MongoDB (PyMongo), Mako, RESTful APIs, and asynchronous programming
· Familiarity with code quality tools (flake8, pylint) and test frameworks (pytest, unittest)
· Experience with Git and collaborative development workflows
· Ability to read and refactor large, multi-module codebases
Nice to Have
· Experience with web frameworks (web.py, Flask, Django)
· Knowledge of C/C++ or C# for cross-platform integrations
· Familiarity with CI/CD, Docker, and cloud deployment
· Exposure to security, encryption, or enterprise SaaS products
What We Offer
· Opportunity to work on a mission-critical, enterprise-scale product
· Collaborative, growth-oriented engineering culture
· Flexible work arrangements (remote/hybrid)
· Competitive compensation and benefits
Experience in Core Java, Spring Boot.
• Experience in microservices.
• Extensive experience in developing enterprise-scale systems for global organization. Should possess good architectural knowledge and be aware of enterprise application design patterns.
• Should be able to analyze, design, develop and test complex, low-latency client-facing applications.
• Good development experience with RDBMS in SQL Server, Postgres, Oracle or DB2
• Good knowledge of multi-threading
• Basic working knowledge of Unix/Linux
• Excellent problem solving and coding skills in Java
• Strong interpersonal, communication and analytical skills.
• Should be able to express their design ideas and thoughts
About Tamasha
Tamasha is building next-generation live, social, and real-time consumer
experiences across gaming, audio, video, and interactive platforms. Our backend
systems power millions of real-time interactions, low-latency data flows, and high
throughput event-driven services.
Role Overview
As a Software Development Engineer III (Backend), you will operate as a senior
individual contributor owning mission-critical backend systems. You will design
scalable architectures, solve complex distributed systems problems, and influence
engineering standards across teams.
Roles & Responsibilities
Own backend systems end-to-end, from design and implementation to
production reliability and long-term evolution.
Design scalable, fault-tolerant, and low-latency backend architectures for real
time and event-driven use cases.
Lead system design decisions including data models, service boundaries, async
workflows, and scalability strategies.
Build and operate high-throughput services handling millions of events, requests,
or messages per day.
Own reliability metrics such as p95/p99 latency, uptime, error budgets, and
participate in incident resolution and post-mortems.
Drive architectural migrations including monolith to microservices and
synchronous to asynchronous flows.
Collaborate with product, frontend, and data teams to translate complex
requirements into robust backend solutions.
Improve developer productivity by contributing to internal platforms, tooling,
CI/CD pipelines, and coding standards.
Mentor engineers through design reviews, code reviews, and technical guidance
without direct people management.
Proactively identify performance bottlenecks, cost inefficiencies, and scalability
risks and resolve them at the system level.
Tech Stack
Backend: Node.js (NestJS / Express), Golang, Java
Databases: PostgreSQL, MySQL, MongoDB, Redis
Messaging & Async: Kafka, SQS, RabbitMQ, Pub/Sub
Real-time: WebSockets, Server-Sent Events
Cloud & Infra: AWS / GCP, Docker, Kubernetes
Observability: Prometheus, Grafana, OpenTelemetry
What We’re Looking For
• 5+ years of backend engineering experience
• Proven ownership of production systems at scale
• Strong understanding of distributed systems and async architectures
• Experience handling production incidents and system reliability
• Ability to independently design and evolve backend systems
*forward your resume to (ambikadotj@semperfidotcodotin)(dot - .)
) 2+yrs of strong experience in Java/J2EE technologies (Core Java, Spring, Springboot, Hibernate,
JPA, Microservices)
*) Experience with working on Java 8.0 and its emerging road map for 11
*) Hands on experience in Springboot and good knowledge of MySQL, MongoDB
*) Hands on experience in working with Angular 6 and above. Experience working with product
management and UI/UX designers having knowledge of advanced Javascript, JQuery
*) Working knowledge on components, modules, data/event bindings, templates, using and creating
directives, writing routes, services, forms and models
*) Solid understanding of the full frontend and backend development life cycle
*) Strong experience in Spring Framework (Spring MVC, Spring security, Spring data, OAuth)
*) Experience with Webservices (SOAP and REST) and API integration. Good knowledge of JSON and
Swagger and Postman is required
*) Experience with web application servers like Tomcat, Jetty, JBoss. Knowledge of Kafka with MQTT
would be an added advantage
*) Experience with TDD, code testability standards, JUnit
*) Experience in managing configurations and deploying and hosting applications in AWS
*) Experience with DevOps tools like Git, Maven, SourceTree, Jenkins, Docker and CICD model of
development
• BS/MS in Computer Science or equivalent from a premier institute Strong development, coding experience in one or more programming languages like OO Programming (Java), Functional/Scripting languages.
• Expertise in Data Structures, Algorithms, Concurrency.
• Expertise in Micro-services Architecture, multi-threading, performance-oriented programming and designing skills
• Strong software design/development experience in building massively large-scale distributed internet systems and products
• Experience of working on Big Data technologies and applications
• Expertise in one or more persistence technologies (Cassandra, Redis, ElasticSearch, RDBMS).
• Superior organization, communication, interpersonal and leadership skills
• Must be a proven performer and team player that enjoy challenging assignments in a high-energy, fast-growing and start-up workplace
• Must be a self-starter who can work well with minimal guidance and in a fluid environment
• Provide good attention to details
• Must be excited by challenges surrounding the development of highly scalable & distributed system for building audience targeting capabilities
• Agility and ability to adapt quickly to changing requirements and scope and priorities

Java with cloud
|
Core Java, SpringBoot, MicroServices |
|
- DB2 or any RDBMS database application development |
|
- Linux OS, shell scripting, Batch Processing |
|
- Troubleshooting Large Scale application |
|
- Experience in automation and unit test framework is a must |
|
- AWS Cloud experience desirable |
|
- Agile Development Experience |
|
- Complete Development Cycle ( Dev, QA, UAT, Staging) |
|
- Good Oral and Written Communication Skills |
Job Role & Responsibility:
VMWare NSBU HCX team is looking for passionate engineers with a startup mindset and ready to solve business problems by applying technical engineering knowledge. You will be a part of enterprise class HCX cloud mobility platform to help customers solve datacenter evacuation, consolidation and hybrid cloud use cases. You’ll be part of a dynamic engineering team where a passion for innovation is a key to address technical problems, improve performance and scalability and focus on continuous improvement is of paramount importance. You will be a part of R&D development team focused on various aspects of HCX ranging from workload mobility to networking in the context of hybrid cloud paradigm. As part of the job, you will work with senior architects and other engineers of the team to deliver world class enterprise class product.
Required Skills:
- Background with Computer Science fundamentals (based on a BS or MS in CS or related field) with 4+ years of substantial professional experience
- Strong programming skills in Java/Go/Python
- Knowledge of distributed systems
- Understanding of Micro Services architecture, REST APIs Design and Development
- Understanding of Kubernetes, Kafka, No-sql, Java/Sprint, Client MVC
- Exposure to one or more UI technologies
- Organized and passionate about details; able to effectively perform multiple/concurrent tasks within deadlines in a dynamic environment
Preferred Skills:
- Strong knowledge about virtualization, and/or container technologies
- Experience in SDN/Networking/Network Management domain is added plus
- Exposure to AWS, Azure is added plus
Job Description
Primary Skills
- Server Side (Java) & AWS serverless framework.
- Must have hands-on experience on serverless framework.
- Design knowledge/experience of cloud-based web application. Familiarity with software design representation tools like astah, visio etc.
- Must have good experience on AWS (Overall knowledge, EC2 Volume, EC2 Security Group, EC2 AMI, Lambda, S3, AWSbackup, CloudWatch, CloudFormation, CloudTrail, IAM, SecretsManager, StepFunction, CostExplorer, KMS, VPC/Subnet)
- Understanding business requirements w.r.t UI/UX.
- Working experience on development/staging/production servers.
- Good testing and verification skills
- Knowledge on SSL certificates and encryption.
- Knowledge on Docker containerization.
Soft Skills
- Excellent interpersonal, oral and writing communication skills.
- Strong Analytical and Problem-solving skills.
- Should have skills to understand and analyzecustomers requirements and expectations.
- Must have experience in interaction with customer
- Work experiences with international cross-culture teams (Good to have)
Secondary SKills
- Scripting using Python
- Good to have knowledge of identity management
- UI/UX
- Knowledge of ReactJS/typescript/bootstrap
- Understanding business usecases w.r.t UI/UX
- Fixing issues wrt to integration on cloud(front end/back end/system/services APIs)










