
Job Title: Java Backend Developer
Location: Bangalore
Experience: 3–6 years
Mode: Full-time
✨ Job Summary
We are looking for a skilled Java Backend Developer to join our engineering team. You will be responsible for building the backend services and APIs that power our web and mobile applications.
✅ Responsibilities:
- Design and develop RESTful APIs using Java and Spring Boot
- Write reusable, testable, and efficient backend code
- Integrate databases, caching layers, and data storage solutions
- Implement security and data protection best practices
- Monitor and optimize application performance
- Work with DevOps tools to manage builds and deployments
- Participate in code reviews and agile ceremonies
🧠 Required Skills:
- Strong programming experience in Java 8+
- Proficient in Spring Boot, Hibernate, JPA
- Hands-on with REST APIs, JSON, Postman
- Solid understanding of SQL and relational databases (MySQL/PostgreSQL)
- Experience with Maven/Gradle, Git, Jenkins
- Familiarity with Docker, Kubernetes, or AWS is a plus
- Understanding of OOP, design patterns, and microservice architecture
🎓 Qualifications:
- Bachelor's degree in Computer Science, Engineering, or a related field
- 3+ years of backend development experience
💼 Good to Have:
- Knowledge of NoSQL (MongoDB, Redis)
- Experience with CI/CD pipelines
- Familiarity with testing tools like JUnit or Mockito

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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About the Company:
Gruve is an innovative Software Services startup dedicated to empowering Enterprise Customers in managing their Data Life Cycle. We specialize in Cyber Security, Customer Experience, Infrastructure, and advanced technologies such as Machine Learning and Artificial Intelligence. Our mission is to assist our customers in their business strategies utilizing their data to make more intelligent decisions. As a well-funded early-stage startup, Gruve offers a dynamic environment with strong customer and partner networks.
Why Gruve:
At Gruve, we foster a culture of innovation, collaboration, and continuous learning. We are committed to building a diverse and inclusive workplace where everyone can thrive and contribute their best work. If you’re passionate about technology and eager to make an impact, we’d love to hear from you.
Gruve is an equal opportunity employer. We welcome applicants from all backgrounds and thank all who apply; however, only those selected for an interview will be contacted.
Position summary:
We are seeking an experienced and highly skilled Technical Lead with a strong background in Java, SaaS architectures, firewalls and cybersecurity products, including SIEM and SOAR platforms. The ideal candidate will lead technical initiatives, design and implement scalable systems, and drive best practices across the engineering team. This role requires deep technical expertise, leadership abilities, and a passion for building secure and high-performing security solutions.
Key Roles & Responsibilities:
- Lead the design and development of scalable and secure software solutions using Java.
- Architect and build SaaS-based cybersecurity applications, ensuring high availability, performance, and reliability.
- Provide technical leadership, mentoring, and guidance to the development team.
- Ensure best practices in secure coding, threat modeling, and compliance with industry standards.
- Collaborate with cross-functional teams including Product Management, Security, and DevOps to deliver high-quality security solutions.
- Design and implement security analytics, automation workflows and ITSM integrations.
- Drive continuous improvements in engineering processes, tools, and technologies.
- Troubleshoot complex technical issues and lead incident response for critical production systems.
Basic Qualifications:
- A bachelor’s or master’s degree in computer science, electronics engineering or a related field
- 8-10 years of software development experience, with expertise in Java.
- Strong background in building SaaS applications with cloud-native architectures (AWS, GCP, or Azure).
- In-depth understanding of microservices architecture, APIs, and distributed systems.
- Experience with containerization and orchestration tools like Docker and Kubernetes.
- Knowledge of DevSecOps principles, CI/CD pipelines, and infrastructure as code (Terraform, Ansible, etc.).
- Strong problem-solving skills and ability to work in an agile, fast-paced environment.
- Excellent communication and leadership skills, with a track record of mentoring engineers.
Preferred Qualifications:
- Experience with cybersecurity solutions, including SIEM (e.g., Splunk, ELK, IBM QRadar) and SOAR (e.g., Palo Alto XSOAR, Swimlane).
- Knowledge of zero-trust security models and secure API development.
- Hands-on experience with machine learning or AI-driven security analytics.
Toast is driven by building the restaurant platform that helps restaurants adapt, take control, and get back to what they do best: building the businesses they love.
As a Principal Engineer / Architect you will be responsible for creating a technical strategy and coordinating the designs for meeting the needs of Toast’s largest restaurant brands. You will partner with Product Managers to develop the technology roadmap that enables enterprise customers to leverage the power of Toast. You will also work closely with technical leaders and implementation teams across the organization to deliver robust, scalable solutions with integrations to customers’ external systems.
As the engineering leader on the Pricing & Funds Management team, you will be responsible for evolving our Funds Management platform (processing >$150B in annual GPV) to meet Toast’s growing needs across the world by both delivering best-in-class customer facing Fintech products and foundational capabilities that enable partner teams to accelerate their products time-to-market & scale.
If you’re a technical leader or a solutions architect, experienced with enterprise SaaS, passionate about customer value, and a great collaborator, read on!
About this roll*:
- Design mission critical platform components at scale to ensure Toast’s Funds Management platform accurately distributes funds to beneficial party in a timely manner
- Develop an expert understanding of Toast’s payments processing platform & adjacent products to enable funds flows across Toast’s financial product suite in a seamless manner
- Document solution design, write & review code, test and rollout solutions to production, capturing & actioning customer feedback to iteratively enhance customer experience
- Collaborate with peers to optimise for solution design performance, flexibility and scalable, including enablement of multi-product & engineering teams on a common framework & platform
- Partner with UX, Product Management, QA and adjacent engineering teams to build best-in-class solutions in a complex and fast-moving environment
- Champion best practices such as quality integration and unit testing
Do you have the right ingredients*?
- Strong technologist with 12+ years experience defining and implementing high scale SaaS solutions. Experience with a broad set of technologies that includes those used at Toast - tiered web applications, microservices, API design patterns, Java, Kotlin and data analytics
- Experience with integration design patterns across high-scale Fintech platforms
- Strong interpersonal skills and a proven track record of building partnerships across engineering, product, customer success, and other stakeholders.
- Experience shipping iterative value using agile or lean software delivery methods.
- Experience of tackling complex and ambiguous problems, communicate clearly with others to solve the problem, and share knowledge to help the whole team succeed
- Experience building payments & Fintech products, with at least 10+ years in the payments industry
Our Tech Stack
Toast’s products run on a stack that ranges from guest and restaurant-facing Android tablets to backend services in Java to internal, guest-facing and restaurant-facing web apps. Our backend services follow a microservice architecture written using Java 8 and DropWizard; we use AWS extensively, ranging from S3 to RDS to Lambda. We have our own platform for dealing with user management, service elevations and robust load balancing. Toast stores data in a set of sharded Postgres databases and utilizes Apache Spark for large scale data workloads including query and batch processing. The front-end is built primarily using React and ES6. The main Toast POS application is an Android application written in Java and Kotlin. For data between tablets and our cloud platform we operate RabbitMQ clusters as well as direct tablet communication to the back end.
Diversity, Equity, and Inclusion is Baked into our Recipe for Success
At Toast, our employees are our secret ingredient—when they thrive, we thrive. The restaurant industry is one of the most diverse, and we embrace that diversity with authenticity, inclusivity, respect, and humility. By embedding these principles into our culture and design, we create equitable opportunities for all and raise the bar in delivering exceptional experiences.
We Thrive Together
We embrace a hybrid work model that fosters in-person collaboration while valuing individual needs. Our goal is to build a strong culture of connection as we work together to empower the restaurant community.
We are looking for a highly skilled Senior Consultant Java Developer to join our team. As a Java Developer, you will play a crucial role in creating robust back-end applications and database structures. You will work closely with Frontend Developers and Lead Engineers to deliver high-quality backend code and APIs. The ideal candidate is a quick learner who can jumpstart development, highly motivated, and thrives in a collaborative environment.
Key Responsibilities:
- Develop and maintain back-end applications using Java/Java EE, Spring, and SQL.
- Design and develop RESTful services and APIs.
- Collaborate with Frontend Developers and Lead Engineers to ensure seamless integration of front-end and back-end components.
- Mentor junior team members and coordinate with lead/manager.
- Quickly adapt to new technologies and development practices.
Technical Skills and Experience:
- 6-7 years of experience in building software applications.
- Expertise in Java/Java EE, SQL, and database design (Oracle 11g, 12c).
- Strong experience with frameworks such as Spring, Spring Boot, Hibernate, and JPA.
- Knowledge of Microservices architecture and design patterns.
- Experience with application servers (Tomcat, WLS).
- Familiarity with XML technologies.
- Hands-on experience with Docker and Kubernetes.
- Experience with NoSQL databases.
- Proficient with code repository tools (e.g., SVN, Git, Mercurial).
- Prior experience with IDEs like JBuilder, Eclipse, and IntelliJ.
Key Attributes :-
- Self-starter with a high degree of motivation and a go-getter attitude.
- Ability to work in a dynamic, flexible, and collaborative environment.
- Excellent verbal and written communication skills.
- Strong leadership skills and technical ownership.
- Critical problem solver with the ability to anticipate and address issues promptly.
If you are a motivated Java Developer with a passion for back-end development and a desire to work in a collaborative and fast-paced environment, we encourage you to apply.
Zumen is a Cloud-based Source-to-Pay software for product manufacturing companies.Zumen enables product manufacturing companies to digitize their direct sourcing and procurement, and manage every detail of the process in a transparent, collaborative platform. With Zumen’s part life cycle management, BOM interface, supplier base visibility and product cost management, companies can build an agile, resilient supply chain and get their products to market faster. Zumen is headquartered in Delaware, USA
Responsibilities:
- Develop features and modules independently based on the overall product architecture provided.
- Research and find solutions to challenging new problems; align with technology needs of the future.
- Fully grasp the product concept and think through challenging customer variations and use cases.
- Proactively seek to identify issues and resolve them at the stages of design, deployment and QA.
- Maintain quality and ensure responsiveness of applications.
- Demonstrate a strong sense of milestone-based performance and adherence to overall development timelines.
Requirements:
Experience - 2 to 5 years experience in Java Tech stack
- Strong hands-on experience in Java, Spring Boot, microservices and Rest API.
- Good understanding of general data privacy and information security.
- Exposure to cloud securities for SAAS application development would be an added advantage.
- A good understanding of all facets of building and delivering data-centric products is desirable.
- Knowledge of code versioning tools.
About the company
Currently we are hiring for a VC backed startup a fast growing fintech startup based in Bangalore.
It is a super app to digitize India’s 50M+ sales agents where they can get access to relevant products & services, receive training through interactive videos on “how to sell, what to sell and whom to sell”, and earn money. For businesses, we help them save a huge effort in managing and training these agents and help them increase their reach to every nook and corner of the country.
India is a trust deficit market which cannot be accessed through Internet Marketing on Facebook and Google as the majority of the customers need training, push, motivation and a primer on why and how to use a product.
To solve this problem, traditional industries like BFSI, Telecom, Automobile, Real Estate etc. use 50M+ frontline sales executives to drive distribution. We believe that not just for these traditional industries but also for emerging companies in FinTech, EdTech etc these agents will play a pivotal role in accessing trust deficit customers.
They have grown to a 100,000+ agent network across India (growing 50% MoM) & are funded by tier1 VC’s and angels in India.
Summary of Role
As a lead of the consumer products software engineering division, you will take an active role in the definition and evolution of standard practices and procedures. You will be responsible for defining and developing software for tasks associated with the developing, designing and debugging of the software applications.
Responsibilities:
- Overlook development of all consumer products in JAVA
- Lead a team of 4-5 developers
- Optimize components for maximum performance across a vast array of web-capable devices and browsers
- Focus on code maintainability and performance of application
- Provide technical advice and assists in solving programming problems
- Continuously create new and interactive features that would help to improve user experience and user engagement.
- Assist with troubleshooting of issues as needed
- Lead the design and architecture of software solutions
- Assist in developing and maintaining continuous integration pipelines
Required Skills for this Role:
- JAVA
- Spring/Spring Boot
- Hibernate
- Linux
- REST
- Kafka
- Mysql
- AWS
- ELK Stack (Elasticsearch)
- CI/CD Pipelines
- Team Leadership experience of at least 3 year
Qualifications:
- 4+ years of experience in Java based technologies
- Experience in designing databases and system architecture
- Experience in building products from scratch at well funded start-ups
- Team Lead/Team Manager experience of at least 3 years

Key Responsibilities :
1. Work closely with client and team and understanding the requirement, design, analyze and do the code changes
2.Helping team and client to resolve issues
3.Should able to handle day to day activity like team management, daily meeting
Technical Experience :
- Net development work experience
- Proficiency in NET Development with Net Core.
- Strong object-oriented programming OOPS design skills, SOLID principles and proficiency in software design patterns
- Experience in database MS SQL Server, No SQL
- Solid understanding of Microservices
- Good understanding Azure, Docker and Kubernetes
- Experience with version control systems GitHub and Bitbucket
Professional Attributes :
1.Should have good communication Skills
2.Should be good team player
3.Should be able to work independently and under pressure
4.Should have good logical and analytical thinking

About the Role
The Engineering team in Bangalore, India is building products for the Martial Arts
fans across the world. As part of the engineering team, you would be expected to have
deep technology expertise with a passion for building highly scalable products.
This is a unique opportunity where you can impact the lives of people across 150+
countries!
Responsibilities
Own architecture, design, development, and implementation of different
modules/features of the services
Design, develop, deploy and support web applications.
Discover opportunities for performance improvements
Recommend ways to improve reliability, efficiency and code quality
Focus on continuous delivery and reducing complexity
Carry out code reviews and manage pull requests
Build applications based on micro-services architecture.
Requirements
Overall 1~3 years of experience in Backend development.
B. E/B. Tech in CS or equivalent streams from institute of repute (IITs, NITs, BITs,
IIITs or equivalent)
Strong object oriented design skills & knowledge of design patterns
Experience designing & developing distributed systems involving multiple web
services, databases (both SQL and NoSQL), caches, queues, etc. taking into
consideration scalability, availability, fault tolerance, consistency, etc. of the
overall system
Well-aware of and enforces development best practices: Unit Tests, Code Reviews,
Integration Tests, CI/CD, Monitoring, Alerting, etc.
- Develop, maintain and support company
- Assist in technical specification and solution design documentation to address customer needs
- Ensure customer implementations are delivered to meet/exceed customer expectations
- Collaborate with cross-functional teams on project delivery, solution development, and deployment as needed
Requirements:
- 2+ years experience in a software development/consulting role, preferably in comprehensive eBusiness and Supply Chain Solutions
- 2+ years experience in Software Analysis, Design, and Development using J2EE technology stacks (Core Java, JSP, XML, Hibernate & Java scripts) and Oracle database (PL/SQL)
- 2+ years experience with the configuration and Installation of J2EE servers like Web logic, Web Sphere, and Oracle
- 2+ years experience with integration technology (knowledge of EAI and B2B tools)
- 2+ years working knowledge of UNIX system (Solaris and Linux)
- Exceptional verbal and written communications skills
- Excellent interpersonal & planning skills and cross-group coordination at all levels
- Bachelor Degree in Computer Science, or equivalent
- Willing to travel when needed.
Preferred (Optional) Skills:
- Supply-chain domain experience implementing and integrating Global Trade Management solutions
- Experience in the integration, deployment or support of an ERP, SCM, or similar systems from SA


Looking for a Python Backend Developer to join our client’s award-winning, talented team,
building the next generation automated drone applications for our global customers.
Some Roles/Responsibilities
● Designing, implementing and deploying updates, features to the company’s cloud
backend system. The work typically requires writing RESTful APIs.
● Derive key metrics from the system to estimate system health and performance.
● Prepare automated test suites for continuous health monitoring of the backend
systems.
● Perform load testing to understand potential scale issues and take corrective
measures.
● Integrate tools for incidence report and response, to ensure high availability of
the backend system.
● Drive Security practices implementation. (Troubleshoot incidents, identify root
cause, configuration, fix and document problems, patching systems for
vulnerabilities, and implement preventive measures)
● Maintain codes, users and API documentation.
● Setting up the CI/CD automation environment for web applications using
Jenkins/ECS.
● Manage Linux Virtual machines on EC2 ensuring correct VPC, Security Group
settings.
● Integrate automated data pipelines to enable analysis of usage patterns on 3rd
party analytics platforms.
Experience required: 3+ years relevant experience
Must Haves Skils-
Flask/Django, Python Backend Exp, Exp in Websockets, Async IO
Notice Period- Immediate/1months/ 2 months negotiable

About Clari
Clari uses AI and automation to drive growth and retention for high-performing revenue teams. Clari’s Revenue Operations platform is currently processing over $300 billion in pipeline, and is used by over 50,000 marketing, sales and customer success professionals across 170 countries. Customers include market leaders like Symantec, Adobe, Alteryx, Workday, Lenovo, Zoom, Medallia, Alteryx and hundreds of others. Clari harvests and analyzes activity signals from dozens of different business systems, including email, calendar, CRM, marketing automation, to shorten sales cycles, increase win rates, and make revenue more predictable.
The result is passionate and frankly humbling customer loyalty. We consistently hear from our customers how we’ve changed their lives - just check out the reviews on https://www.g2crowd.com/products/clari/reviews">G2 Crowd. It never gets old, and we never take it for granted.
Clari is looking for several key experienced engineering who will focus on implementing many different areas of our solution, including but not limited to our overall web architecture, core application features such as data science driven analytics, user management, content management, social graph integration, personalization, emails, collaboration systems and enterprise content repositories as well as on unstructured data analytics, machine learning and our relevance engine.
Join our core applications team where you’ll work with truly remarkable colleagues on highly diverse, complex, and relevant problems while building scalable applications designed to service millions of mobile and web-based information workers. You’ll work closely with product managers, designers, and others in a cross functional environment on multiple projects, from concept phase through testing, launch and ongoing operations.
We work in an open, collaborative environment and seek exceptional developers who enjoy problem solving and straying outside the routine. You will also contribute to the growth of Clari by being a Brand Ambassador and assist in the hiring of great talent.
Qualifications
- 3+ years of professional server development experience using Java or similar object-oriented language
- Strong understanding of web-based architecture - web servers, load balancing, caching, databases etc.
- Basic knowledge of SQL (Postgres, MySQL) and NoSQL databases (MongoDB)
- Experience developing data driven web applications
- Up-to-date knowledge of latest trends in web application development, including Amazon AWS ecosystem
- Experience building and using RESTful APIs
Nice to Have
- Experience with multi-threading, replication etc. concepts in cloud applications
- Familiarity with large scale business intelligence applications
- Familiarity of JavaScript and other web technologies such as React
Why Clari?
Because we have a big mission, a winning product and an amazing fan base of passionate customers.
We’re changing the world and having a lot of fun on the way. Clari is a fun and fast-growing Silicon Valley company. Clari is one of Inc. Magazine’s best places to work in the US and was named as a 2019 Top Bay Area Workplace for the 5th consecutive year. In October 2019, we closed $60M in Series D funding and are growing at 200%. Our product is a winner - we have perennially been given the highest overall rating in G2 Crowd’s Top 20 Sales Analytics Software. We’re backed by top tier investors including Sequoia Capital, Bain Capital, Sapphire Ventures, Madrona Venture Group and Tenaya Capital, and have a superb and supportive board.
Our team is made up of veteran entrepreneurs, brilliant engineers, and tried-and-true sales professionals who have done this before and want to do it again, this time only bigger.
What’s left to add? You.

