
JOB DESCRIPTION
Experience: 5-8 years
Location: Mumbai
Wissen Technology is now hiring for 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 consulting.
Required Skills:
- Exp. - 5-8 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 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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🔥 High Priority – Senior Lead Java Developer (10+ Years) | Bangalore – Onsite
Summary :
We are hiring Senior Lead Java Developers with 10+ years of experience for an onsite role in Bangalore.
If you're a hands-on expert with a strong background in Java, Spring Boot, Microservices, and Kubernetes, this is your opportunity to lead, mentor, and deliver high-quality solutions in a fast-paced environment.
🔹 Position : Senior Lead Java Developer
🔹 Experience : 10+ Years (12+ preferred)
🔹 Location : Bangalore (Onsite)
🔹 Openings : 6+
✅ Must-Have Skills :
- 8+ years of hands-on experience with Core Java & Spring Boot
- Expertise in Multithreading, Dependency Injection, and AOP
- Strong in Microservices Architecture and RESTful services
- Good exposure to SQL & NoSQL databases
- Proficient with Git (GitLab preferred)
- Experience with Kubernetes deployments and APM tools (New Relic preferred)
- Solid understanding of distributed tracing and log analysis
- Proven debugging and performance optimization skills
💼 Responsibilities :
- Design and develop high-quality, scalable microservices
- Act as SME for multiple services or subsystems
- Own service performance, SLAs, and incident resolutions
- Mentor junior developers and conduct technical interviews
- Participate in production war rooms and troubleshooting
- Lead development efforts and drive code quality
🎓 Qualification :
- BE/B.Tech or equivalent degree
About Blitzy
Blitzy is a Cambridge, MA based AI software development platform on a mission to revolutionize the software development life cycle by autonomously building custom software to unlock the next industrial revolution. We're transforming how enterprises build software, turning enterprise requirements into production-ready code with an agentic software development platform that can autonomously execute 80% of the quantum of software development work. We're backed by multiple tier 1 investors, and have proven success as founders of previous start-ups.
The Role
We're seeking an experienced POC Engineer to join our India HQ2 team. This critical role sits at the intersection of cutting-edge AI technology and enterprise customer success. You'll lead the technical design, development, and delivery of proof-of-concept implementations that demonstrate the transformative power of Blitzy's agentic software development platform to Fortune 500 clients. This role requires deep technical expertise, strong customer-facing skills, and the ability to rapidly prototype and iterate on complex AI-driven solutions.
What You'll Do
- Lead Technical Pilots and POCs: Design, architect, and implement end-to-end proof-of-concept solutions that showcase Blitzy's platform capabilities to enterprise customers
- Customer Collaboration: Work directly with Fortune 500 clients to understand their technical requirements, challenges, and success criteria for POC engagements
- Rapid Prototyping: Build functional demonstrations and prototypes that prove technical feasibility and business value, often under tight timelines
- AI/ML Integration: Leverage LLMs, agentic workflows, and multimodal AI capabilities to solve complex customer use cases
- Technical Architecture: Design scalable, production-grade architectures that can transition from POC to full implementation
- Performance Optimization: Conduct performance analysis, identify bottlenecks, and optimize solutions for speed, efficiency, and reliability
- Documentation & Knowledge Transfer: Create comprehensive technical documentation and effectively communicate architecture decisions to both technical and non-technical stakeholders
- Cross-functional Collaboration: Partner with Sales, Product, and Engineering teams to refine platform capabilities based on customer feedback
- Innovation Leadership: Stay at the forefront of AI/ML advances and identify opportunities to incorporate new techniques into POC solutions
What We're Looking For
Required Qualifications
- 10+ years of software engineering experience with proven track record in enterprise software development and production systems
- Deep expertise in AI/ML technologies, particularly with LLMs, agentic systems, and generative AI applications
- Strong background in building enterprise-grade solutions that have shipped to production
- Extensive experience with modern software architecture, including cloud-based platforms (AWS, GCP, or Azure)
- Proficiency in multiple programming languages (Python, TypeScript/JavaScript, Go, Java, or C++)
- Demonstrated experience leading technical teams and mentoring engineers
- Proven ability to translate complex technical concepts for diverse audiences
- Track record of working directly with enterprise customers in technical consulting or solutions engineering capacity
- Strong analytical and problem-solving skills with focus on performance optimization
- Excellent communication skills with ability to present to C-level executives
Preferred Qualifications
- Background in developing AI agentic workflow orchestrators or similar multi-agent systems
- Experience with GPU-based computing and optimization
- Experience with sequence-to-sequence models and deep neural network architectures
- M.S. or Ph.D. in Computer Science, Engineering, or related field
- Experience leading distributed teams across geographies
- Track record of innovation (patents, publications, or open-source contributions)
- Experience with Responsible AI practices and frameworks
Key Success Metrics
- Successfully deliver POCs that convert to paid customer engagements
- Achieve high customer satisfaction scores and build strong customer relationships
- Reduce time-to-value for POC implementations through reusable frameworks and components
- Contribute technical insights that improve core platform capabilities
- Build scalable POC processes and best practices for the India team
Our Culture
Who we are: Led by two pioneering co-founders we are one of the fastest growing companies in the U.S., creating our own category of enterprise autonomous software development. We automate thousands of hours of software development for our customers, which includes strong representation within the Fortune 500.
How we work:
- We move Blitzy Fast: Time is both our company's and our clients' most precious asset. We move quickly and decisively to innovate internally and deliver exceptional software externally.
- Championship Mindset: We operate like a professional sports team. We win as a team by holding ourselves and each other to high standards, collaborating in-person, and remaining focused on the mission.
- Passion for Invention: We're pushing the frontier of what's possible, requiring constant innovation and iteration.
- We Work for the Customer: We focus on delivering outsized value to the customers we work with and expanding those relationships into deep, meaningful partnerships.
We believe in being 'everyday athletes'—taking care of ourselves so we can bring our best minds to work. We promote great sleep, movement, and restorative activities for optimal mental performance. It makes for a happier and more productive team.
What We Offer
- Opportunity to shape Blitzy's expansion in India as a founding member of HQ2
- Work with cutting-edge AI technology and Fortune 500 enterprise clients
- Competitive compensation package including equity
- Collaborative, high-performance team environment
- Professional growth opportunities in a fast-scaling startup
- Chance to make significant impact on product direction through customer insights
- Culture that values innovation, technical excellence, and work-life balance
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
Greetings from HashStudioz Technologies!
We are happy to share the details of 'Java Developer'. Kindly read the job description carefully before your technical Interview Round.
Company Profile :
- We are a global leader in product development, having a wide range of technology experts under the same roof. You would be surprised to meet our enthusiastic team of blockchain, cloud, Mobility & Automation.
- Our mission is to help companies adopt new technologies and simplify complicated issues that arise amid technology evolution.
- We are designers, engineers, developers, analysts, programmers, testers, cloud experts, blockchain specialists, automation freaks & smart workers who have developed applications that are now being used by millions of consumers worldwide.
- We know how to build successful software products and welcome startup minds to discuss their product feasibility & scalability.
Company Profile:- https://www.hashstudioz.com/">https://www.hashstudioz.com/
Job Profile: "Java Developer"
Industry: IT-Software / Software Services
Job description
Role:
- Ensure effective Design, Development, and Support activities in line with client needs and architectural requirements.
- Ensure continual knowledge management
- Adherence to the organizational guidelines and processes
- Define best practices, coding standards, and development methodology as part of the master solution design and ensure compliance with these guidelines
- Highlight and resolve solution dependencies on enterprise systems
- Good problem-solving capabilities and troubleshooting skills
- Should have excellent communication (oral and written) and interpersonal skills
Requirements:
- 0 -6 Years of experience in Java, J2EE Development
- Must have Hands-on Experience in Angular/ React
- Fluency in programming constructs and working with Spring/Spring Boot/Spring MVC and Hibernate framework
- Good experience with 1-2 Frontend Technologies eg JavaScript/Angular/React/jQuery
- Good experience with MySQL/MongoDB
- Design and Development of project modules independently
- Handle SDLC individually
- Good understanding of Object-Oriented Programming and Design Concepts.
Job Details:
- Three plus years of experience in IT systems analysis and application program development
- Experience in an Object Oriented Programming language such as Java is a must
- The candidate must be a hands-on coder doing active development
- Extensive experience programming in Java Application Development & RESTful API
- Experience in AWS Cloud technologies is optional but good to have
- Proficient in Object-Oriented Programming (OOP) concepts, workflows, and design patterns
- A minimum of 3 years experience as a Technical Lead in Java., Strong experience in design and implementation of high performing and highly scalable websites/applications
- Strong experience in Spring MVC framework and experience in design patterns, unit testing etc..
- Strong experience in AWS services such as EC2, Lambda, S3, ECS, API Gateway and using tools such as Terraform, Ansible
- Strong experience in Endeca, ATG and BCC, Solr, any Headless CMS
- Considerable experience in databases such as SQL Server/Mongo DB is an added advantage
- Good experience in JavaScript frameworks such as Angular/React/VueJS is an added advantage
- Experience in Adobe AEM is an added advantage
- Creative problem-solving skills and ability to effectively communicate and translate feedback, needs and solutions
- Excellent verbal and written communication skills required
- Provide strategic thinking and leadership pertaining in cloud technologies and building scalable websites
- Provide technical leadership and guidance internally to the team and externally to management
- Communicate effectively across all levels of the organization
- Collaborate within and across teams with strong teamwork orientation
- Help maintain a culture of high quality
- Showcasing excellent work ethic and strong sense of ownership of end result
- Understand the structured software development methodologies including design, development and testing in an Agile environment
- Follow all security practices and identify areas and processes where performance and scalability can be improved
- Make and justify recommendations for improvement., Participate in development of solutions in cases of new technology direction and/or proof of concepts
- Should translate business needs into technical solutions with Strong analytical, conceptual and technical skills
- Support the evaluation, selection, design, development and maintenance of the platforms.
Role: Backend Developer-SDE2
- 3-5 years of exp into
Responsibilities:
- Work on the development backend systems for our first product.
- Build reliable, secure and performant backend systems.
- Drive test coverage and continuous delivery automation within the team.
Requirements:
- 3-4 years of software development experience.
- Strong computer science fundamentals.
- Good knowledge of Java ecosystem.
- Can write code that is readable, maintainable and performant.
- Good understanding of relational databases, transactions, entity-relationship modeling.
- Comfortable writing multi-threaded programs.
- Create a platform to change the way kids learn: Because company is solving a unique problem, we have the chance to reimagine education. Be it collaboration or puzzles or interactive videos or even 3D experiences, there is a huge scope for innovation. You can help us get there.
- Tackle challenging and impactful problems: You'd jump between product, marketing, internal tools, process — participating in every phase from inception to implementation. Absolutely no boredom.
- Join us at a magical time: We went through Y Combinator, have raised funding and are seeing strong traction with a very lean team. You get to be among the first employees in one of the strongest and most passionate teams in the EdTech space.
So, what will you do as a Full Stack Lead at company?
- As one of the early employees, there will be a lot on your plate. All the time!
- You'll take ownership and build new product features from start to finish. We love to hire ‘Product Engineers’ who care about “why” behind a feature and suggest changes to hit the objectives even better
- You'll build improvements to performance, reliability, and product polish — for example, improving the efficiency and performance of our replicated state systems.
- You will mentor new joiners, review the pull requests and help with expanding the team as we grow
This might be for you if...
- You have strong knowledge of both front and back end technologies
- You have been professionally coding for at least 4 years
- You have worked in a startup and relish the chaos and pressure
- You've built and maintained quality user interfaces that have reached a large audience, ideally while the product is experiencing rapid growth.
- You can readily learn most technologies as you go. To you, technologies are about tools and tradeoffs, not an ideology.
- You care about the business implications of anything you build. You're not just going after cool stuff — you understand the balance between craft, speed, and the bottom line.
- Bonus: You're fluent with Typescript, Python, Go, NodeJS, Postgres, Docker.
- Bonus: You're familiar with multiple frameworks such as React, Django
- Bonus: You understand AWS infrastructure and can put out a fire if one happens
We are looking for Product Developers-Java Technology with hands-on experience in Core java and socket programming with the flair for working on cutting-edge solutions.
Responsibilities and duties:
- Responsible for the development and unit testing of various modules in JAVA and other related technologies.
- Need to do requirement understanding, preparing initial concept and possible architecture design.
- Responsible for feasibility analysis and POC development.
- Ability to understand the product architecture and end-to-end system flow.
- Ability to relate and analyze tasks as per overall product architecture and philosophy.
- Work in Agile SCRUM development model and be able to plan, estimate, execute and deliver quality work as per committed timeline.
- Ability to continuously analyze and contribute to lean processes, quality improvements, product growth, and productivity improvements within the team.
Required Skills:
- JAVA - Core JAVA Concepts, Socket Communication, Multithreading, Exception Handling, Collections Framework, Reflections, I/O, XML, HTML, JSON, YML
- Database version management tools like Liquibase etc.
- Version control system like GIT. Hands-on experience with strong knowledge of branching, merging,
- Build systems like Maven, Gradle, Ant etc.
- Hands-on experience in running development environment on Unix/Linux (Ubuntu, CentOS).
- Cloud computing experience, Integration with third-party devices, experience in writing REST APIs, shell scripting knowledge will be an added advantage.
We are looking for Product Developers-Java Technology with hands-on experience in Core java and socket programming with the flair for working on cutting-edge solutions.
1. Design, develop and deliver web services and jobs that powers Niki, India's first transactional bot.
2. Write code that are clean, testable, performant, scalable, documented and secure
3. Design and architect new sub-systems, identity perf bottlenecks and suggest design/architect improvements
Qualifications:
1. Minimum of 5 years of software development experience preferably developing e-commerce applications
2. Bachelor’s and/or Master's degree in Computer Science or related field of study
Preferred Qualifications:
1. Fluent in Java or any other object oriented programming languages
2. Knowledge of Design patterns and design principles
3. Experienced in delivering REST style web services
4. Significant experiences in asynchronous and multi-threaded programming
5. Strong CS fundamentals with good hold on DS and Algo.
Good to have:
1. Knowledge of Spring
2. Experience with AWS, Azure or Google Cloud









