
⚠️ Important Note (Please Read Before Applying):
- Only candidates with 5–8 years of relevant experience should apply.
- Freshers or candidates with less than 5 years of experience – please do not apply.
- Only immediate joiners or candidates currently serving notice will be considered.
Job Title: Java Developer (5–8 Years)
Location: Bangalore (Hybrid Mode)
Experience: 5 to 8 years
Joining: Immediate / Notice Serving Only
About the Role:
We are looking for passionate and highly skilled Java Developers to join our dynamic team in Bangalore. The ideal candidate will have strong expertise in Java, Spring Boot, Collections, Multithreading, and Data Structures & Algorithms (DSA), with proven problem-solving abilities.
Key Responsibilities:
- Design, develop, and maintain high-performance, scalable, and secure applications.
- Work with Spring Boot and related frameworks to build microservices-based solutions.
- Optimize code using Collections & Multithreading concepts for performance and reliability.
- Apply strong DSA and problem-solving skills to deliver efficient solutions.
- Collaborate with cross-functional teams to ensure timely delivery of high-quality software.
- Troubleshoot, debug, and resolve production issues efficiently.
Required Skills & Experience:
- 5–8 years of hands-on experience in Core Java and Spring Boot.
- Strong expertise in Collections, Multithreading, and Concurrency.
- Solid understanding of DSA, Algorithms, and System Design fundamentals.
- Experience in developing REST APIs and Microservices.
- Proficiency in writing clean, maintainable, and efficient code
- .Strong analytical and problem-solving skills.
Why Join Us?
- Opportunity to work on cutting-edge projects with modern architectures.
- Hybrid work setup in Bangalore.
- Fast-paced and growth-driven environment.

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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Role Overview
We are hiring a Principal Datacenter Backend Developer to architect and build highly scalable, reliable backend platforms for modern data centers. This role owns control-plane and data-plane services powering orchestration, monitoring, automation, and operational intelligence across large-scale on-prem, hybrid, and cloud data center environments.
This is a hands-on principal IC role with strong architectural ownership and technical leadership responsibilities.
Key Responsibilities
- Own end-to-end backend architecture for datacenter platforms (orchestration, monitoring, DCIM, automation).
- Design and build high-availability distributed systems at scale.
- Develop backend services using Java (Spring Boot / Micronaut / Quarkus) and/or Python (FastAPI / Flask / Django).
- Build microservices for resource orchestration, telemetry ingestion, capacity and asset management.
- Design REST/gRPC APIs and event-driven systems.
- Drive performance optimization, scalability, and reliability best practices.
- Embed SRE principles, observability, and security-by-design.
- Mentor senior engineers and influence technical roadmap decisions.
Required Skills
- Strong hands-on experience in Java and/or Python.
- Deep understanding of distributed systems and microservices.
- Experience with Kubernetes, Docker, CI/CD, and cloud-native deployments.
- Databases: PostgreSQL/MySQL, NoSQL, time-series data.
- Messaging systems: Kafka / Pulsar / RabbitMQ.
- Observability tools: Prometheus, Grafana, ELK/OpenSearch.
- Secure backend design (OAuth2, RBAC, audit logging).
Nice to Have
- Experience with DCIM, NMS, or infrastructure automation platforms.
- Exposure to hyperscale or colocation data centers.
- AI/ML-based monitoring or capacity planning experience.
Why Join
- Architect mission-critical platforms for large-scale data centers.
- High-impact principal role with deep technical ownership.
- Work on complex, real-world distributed systems problems.
• 3+ years of hands-on experience developing and testing highly scalable software.
• Excellent coding skills in Java 17 or above.
• Very good understanding of any RDBMS and/or messaging queues
• Proficient in Core java, Solid foundation in object-oriented development and design patterns.
• Excellent problem-solving skills and attention to detail.
• Ability to engineer complex features/systems from scratch and drive it to completion.
• Good knowledge of multiple data storage systems.
• Prior experience in micro services and event driven architecture.
• Experience with Spring boot and Spring Security Framework
• Spring web-flux understanding is desirable
• Understand OWASP Top 10/CWE, DAST and SAST
🚀 Hiring: Python Developer
⭐ Experience: 2+ Years
📍 Location: Mumbai
⭐ Work Mode:- 5 Days Work From Office
⏱️ Notice Period: Immediate Joiners
(Only immediate joiners & candidates serving notice period)
Looking for a skilled Python Developer with experience in Django / FastAPI and MongoDB / PostgreSQL.
⭐ Must-Have Skills:-
✅ 2+ years of professional experience as a Python Developer
✅Proficient in Django or FastAPI
✅Hands-on with MongoDB & PostgreSQL
✅Strong understanding of REST APIs & Git
Java Developer – Job Description
Wissen Technology is now hiring a Java Developer - Bangalore 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 consultancy.
Required Skills:
• Exp. - 2 to 7 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 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 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.
- 2.5+ year of experience in Development in JAVA technology.
- Strong Java Basics
- SpringBoot or Spring MVC
- Hands on experience on Relationl Databases (SQL query or Hibernate) + Mongo (JSON parsing)
- Proficient in REST API development
- Messaging Queue (RabitMQ or Kafka)
- Microservices
- Any Caching Mechanism
- Good at problem solving
Good to Have Skills:
- 3+ years of experience in using Java/J2EE tech stacks
- Good understanding of data structures and algorithms.
- Excellent analytical and problem solving skills.
- Ability to work in a fast paced internet start-up environment.
- Experience in technical mentorship/coaching is highly desirable.
- Understanding of AI/ML algorithms is a plus.
- Bachelor’s degree in computer science, engineering, or a related field.
- At-least more than 1+ Years of Experience in a similar role would be desired.
- Excellent technical, diagnostic, and troubleshooting skills.
- Strong leadership skills to drive good coding and design practices across multiple engineering teams
- Willingness to build professional relationships with staff and clients.
- Excellent communication, motivational, and interpersonal skills.
- Expertise in architecting, building, and maintaining ultra-low latency, cost-efficient systems in cloud environments
- Excellent track record in modernizing cloud-based applications using micro services, containers, and other architectures
- Experience and working knowledge in building large-scale, data-intensive Text search applications using Solr / Elastic Search is a Must
- Experience and working knowledge of AI/ML/ML Ops with respect to building large-scale, data-intensive applications would be a Plus
- Experience and working knowledge in building Java based Spring Boot micro-services integrated with any messaging framework
- Driven, Highly-motivated and passionate towards development & innovation
- Determining project requirements and developing work schedules for the team.
- Delegating tasks and achieving daily, weekly, and monthly goals.
- Liaising with team members, management, and clients to ensure projects are completed to standard.
- Identifying risks and forming contingency plans as soon as possible.
- Analyzing existing operations and scheduling training sessions and meetings to discuss improvements.
- Keeping up-to-date with industry trends and developments.
- Updating work schedules and performing troubleshooting as required.
- Motivating staff and creating a space where they can ask questions and voice their concerns.
- Being transparent with the team about challenges, failures, and successes.
- Writing progress reports and delivering presentations to the relevant stakeholders.
- Extremely hands-on in delivering Development and R&D tasks
- Design, plan and perform dev-analysis to determine effort estimates on every sprint for the team
- Running Demo's, ensuring thorough documentation of the features built
- Identify & Plan upgrades to technologies & frameworks from time-to-time
Collaborate with clients and internal teams to develop appropriate solutions
• Brainstorm with team members and prove the ability to think on the fly.
Requirements
• Core Java
• Spring Boot, Spring Rest, Spring Data
• Testing framework - Junit, Mockito
• Experience in deploying applications on one of public cloud preferably Microsoft Azure. (Other
- AWS or Google Cloud)
• Experience in one of messaging platform preferably Kafka (Other - Rabbitmq or Active MQ)
• Docker
• Kubernetes
• Others – Linux, Git, Maven, CI/CD pipeline
• Experience in working with Agile teams
Good To Have
• Git (6+ years of experience)
• Develop test cases, conduct SIT, load test, and tune the performance of systems to meet
acceptance criteria.
• Perform and manage stages of the SCRUM and participate in the systems review with Project
Lead/Manager.
• Experience in the development of cloud-native applications is an added advantage.
• Experience working in Agile teams
What We Offer
• National and International Business Trips (if there is an opportunity)
• Culture of Knowledge Sharing and Training
• Modern & lively working environment
• Opportunity to write books, participate in conferences
• International assignment
The role of software engineer here is, to develop the application software that is being used on compactors and to do thorough software testing methodically. Expertise is needed on both embedded & application development.
- Expertise on Object oriented programming.
- Highly proficient in C# & C++. Expertise on .NET Framework, ASP.NET, JavaScript, HTML & CSS.
- Proficient in windows frameworks like WPF, WCF, etc for developing desktop applications.
- Knowledge on Microsoft Azure / other cloud technologies.
- Good knowledge on C programming and some exposure to embedded software development.
- Good at unit testing and testing frameworks like gmock, gtest, etc.
- Good at developing solutions in efficient way. Good at solving problems, quick grasper & solid analysis skills.
- Automating manual activities, drive the test automation strategy by architecting new solutions.
- Analyse test results and debug test failures in fast & efficient manner.
- Strong interpersonal & communication skills – written, verbal and presentation.











