
Job Title: Java Developer
Experience: 5 –14 Years
Location: Mumbai / Bangalore
Employment Type: Full-time
We are looking for experienced and passionate Java Developers with strong expertise in Core Java, multithreading, and performance tuning. You will be responsible for designing and developing high-performance, scalable, and resilient backend systems. This is an exciting opportunity to work on complex, enterprise-level systems and modern architectures like microservices and event-driven frameworks.
• 5–10 years of hands-on experience in Java (8 or above) development.
• Strong foundation in OOPs, data structures, algorithms, and design patterns.
• Deep understanding of multithreading, concurrency, and synchronization techniques.
• Experience with Spring Boot, Spring MVC, JPA/Hibernate.
• Good working knowledge of RESTful API development.
• Proficient in SQL and experience with relational databases like MySQL, PostgreSQL, etc.
• Familiarity with Git, Maven/Gradle, and CI/CD pipelines.
• Exposure to Agile/Scrum methodology

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
Similar jobs
Java Lead We are solving complex technical problems in the financial 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. 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 the year 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. Experience: 8–13 years in Java development. Domain Expertise: Background in product-based companies, investment banking experience preferred. Leadership: Proven ability to lead teams of 3–4 members. Technical Depth: Hands-on with complex systems and distributed architectures. Soft Skills: Strong analytical thinking, problem-solving, and excellent communication. Process Knowledge: Expertise in end-to-end SDLC and Agile methodologies. Tech Stack ● Languages & Frameworks: Core Java, J2EE, Spring Boot, Spring Framework. ● Architecture: RESTful APIs, Microservices. ● Persistence: Hibernate/JPA. ● Databases: Postgres, MySQL (or similar). ● Tools: Maven/Gradle, CI/CD pipelines. ● Cloud: AWS/Azure (nice to have).
Exp-Min Year
Location Kolkata-On site & Remote
Sal-Nego
JD
Hands on design and in depth development experience in Microsoft NET
· technologies including C#, ASP NET MVC, Web API, Entity Framework and LINQ
· knowledge of MS SQL Server 2014 above
· Experience with version control systems GIT
· Experience creating and consuming web services including REST JSON
· Skills (Technical / Specialist Skills)
· Proficiency in .NET Development with .NET Framework 4.5 or later, Asp.net MVC,
· C#, Web API, LINQ, Entity Framework, SQL Server 2014 or above, jQuery.
Company Overview
CareStack is a complete cloud-based dental software solution for scheduling, clinical, billing, patient engagement, and reporting needs of dental offices of any size - whether it's a single location or a large multi-site DSO with hundreds of locations.
The company was founded in 2015 and the commercial launch was done in early 2018. Since then, more than 1000 offices have chosen CareStack as their single source of truth. This is the fastest growth till date in the dental practice management software market, dominated by 100 year old distribution companies.
More about CareStack
● Rated by independent B2B software reviews and research analysts as the most modern, innovative and customer experience focussed company in the space with the fastest growth in the segment.
● Important strategic go to market partnerships with dental industry leaders like Delta Dental, Darby Dental and several others.
● Venture backed with over $60M raised from leading financial and strategic investors.
● HQ'd in Orlando, FL with offices in Minnesota, Bangalore, Trivandrum and Cochin.
Role Overview
CareStack seeks to hire Software Development Engineer - 1 to build its next generation healthcare platform. You will be reporting to a Staff SDE in your business unit , to develop and release services and solutions for our platform, aligning with your business unit’s goals and objectives.
Key responsibilities
● Technical Design
You can be a specialist in technology areas, but capable of creating complete designs to solve a specific problem that accomplishes a definitive product feature or enables a technical advancement.You should work with your lead to review your design and embrace the feedback
● Process Definition/Adherence
You should deliver estimations, review test scenarios/cases created by QAs in your team, participate in sprint grooming and planning meetings. You must learn, practice and evangelize standard techniques for grooming, defining complexity of stories and estimation.
● Code Quality
At Carestack we believe that your code reflects your character. Code for scale, produce maintainable reusable code. You must commit to clean coding, continuous refactoring to ensure a high level of code quality. Continuously learn, practice and evangelize coding patterns/best practices within and outside your team. You should ensure testability of team functional areas, facilitate integration testing, resolve deep rooted technical issues and proactively collaborate with team members in solving complex problems.
● Team Player
You should proactively communicate to resolve dependencies within and outside the team. Understand organizations culture code and streamline conversations and activities that will further instill this code. Mentor and coach new additions to your team.
● Value/Mission Alignment
Be a champion for CareStack within the Engineering team. Help drive workplace and cultural norms within your business unit that align with CareStack company values.
This role may be for you if you…
● Have an insatiable itch to join and the courage to scale an early-stage technology company.
● Have 2-4 years of experience in building modern day web platforms, using Microsoft technologies on the backend.
● Can be a generalist or specialist with deep understanding of building software components that meet defined requirements, with good understanding of .NET Core/ASP.NET.
● Are proficient in data structures and algorithms, and object oriented analysis and design of software systems.
● Are a backend specialist with good understanding of event driven programming, distributed systems, caching/in-memory computing systems, data modeling for transactional systems.
● Solid understanding of relational and non relational databases including warehouses.Preferably MySQL, MSSQL, Vertica and CosmosDB
● Solid understanding of CI/CD patterns and IaC.
● Expertise in building ETLs in both batch and streaming model.
● Expertise in building and testing APIs and micro services
This role may not be for you if you…
● Don’t have the itch to design solutions and write code and you don’t grab every other opportunity to review and write code.
● Don’t have the fire in you to fight for your design suggestions and debate with logical data points
● Don’t have the trait to be transactional in code reviews/design discussions, accept your mistakes and appreciate better ideas from your peers.
● Haven’t developed the habit of doing objective conversations that are data driven.
External Title: Backend Developer.
Location: Remote
Year of experience: 4+ years
Job Description:
- Understanding of the working of a web-based application.
- Expert Knowledge of Microservices architecture.
- Understanding the nature of asynchronous programming and its quirks and workarounds.
- Proficient understanding of code versioning tools, such as Git.
- Basic understanding of REST APIs and their concepts.
- Basic understanding of front-end technologies, such as HTML5, and CSS3, JavaScript.
Desired Skills
- Expereience in C#, Web API, .NET (Core and Framework), SQL Server.
- Leading a team designing and implementing software solutions using the Microsoft Azure stack primarily, with scope to also work with open-source technologies.
- Designing, building, testing, automating, monitoring, and supporting significant components within a modern digital service platform.
- Helping to build and lead an effective, cross-functional squad practicing agile ways of working (Scrum, DevOps, Design Sprints) in tight collaboration with local and remote teams
- Microservices and server less architecture with service fabric, functions and API apps, service bus.
- Visual Studio, Visual Studio Code and GIT, Azure CLI (Cloud Shell), Azure DevOps.
- Expertise in with Azure Active Directory, VNETs, NSGs, ASGs, OAuth and OpenID Connect, Azure traffic manager, CDN, App Gateway and load balancers.
- Hands on experience of executing cloud native projects in Azure with DevOps
Elastic is a search company built on a free and open heritage. Anyone can use Elastic products and solutions to get started quickly and frictionlessly. Elastic offers three solutions for enterprise search, observability, and security, built on one technology stack that can be deployed anywhere. From finding documents to monitoring infrastructure to hunting for threats, Elastic makes data usable in real time and at scale. Thousands of organizations worldwide, including Cisco, eBay, Goldman Sachs, Microsoft, The Mayo Clinic, NASA, The New York Times, Wikipedia, and Verizon, use Elastic to power mission-critical systems. Founded in 2012, Elastic is a distributed company with Elasticians around the globe and is publicly traded on the NYSE under the symbol ESTC. Learn more at https://www.elastic.co/">elastic.co.
The Observability team is in charge of developing solutions that focus on application developers and engineers that run infrastructure and services supporting these applications. Elasticsearch is an efficient datastore for logs, metrics, and application traces, supporting the three pillars of observability. The Observability team builds and maintains solutions that make getting insights from this data turnkey and efficient, such as our https://www.elastic.co/solutions/apm">APM, https://www.elastic.co/solutions/metrics">Infrastructure Monitoring, and https://www.elastic.co/uptime-monitoring">Synthetics solutions. When developing these solutions, we think about the problem end-to-end: how do we automatically collect data from common data sources, how do we store it efficiently in Elasticsearch, how do we present this information to the user, what actions do we take on the insights from the data? All of these aspects are important in bringing a turnkey solution to the market.
You will be working on Observability Integrations to collect logs and metrics from all the systems that matter to our users, using the current and next generation of data shippers: Beats and the new Elastic Agent.
Job Location : Bangalore, India
What you will be working on
- Work with product management to define the requirements for new https://github.com/elastic/integrations">integrations: data collection strategies, storage optimization, alerting and visualization options, refining requirements, translating requirements to stories and epics, and performing detailed scoping of features
- Develop, maintain and evolve https://github.com/elastic/integrations">integrations for multiple services using the Elastic Stack and https://github.com/elastic/elastic-package">specific tooling. For some projects, contributions to the https://github.com/elastic/beats">beats platform will be needed (Go).
- Work with our support team to help customers troubleshoot and solve their issues in production environments, ensuring SLAs are met.
- Interact with the community and help them use our products.
- Collaborate with other engineering, QA and documentation teams to execute on product deliverables.
What you will bring along
- Experience operating or developing monitoring products, such as Elastic (ELK, Elastic Observability), Prometheus, Grafana, ELK, Datadog, New Relic, etc.
- Proficiency in at least one programming language (Go, Java, PHP, Python, Ruby, C++, we use Go) with strong analytical, debugging, and troubleshooting skills.
- Excellent verbal and written communication skills and ability to work in a distributed team.
- Experience participating in technical decision-making across different engineering teams.
Bonus Skills
- Interest in learning new technologies.
- Experience contributing to open source projects.
- Hands-on experience managing cloud services at scale.
- Experience in SRE and / or DevOps roles.
- Experience monitoring or operating container orchestrators (Kubernetes, etc).
Additional Information - We Take Care of Our People
As a distributed company, diversity drives our identity. Whether you’re looking to launch a new career or grow an existing one, Elastic is the type of company where you can balance great work with great life. Your age is only a number. It doesn’t matter if you’re just out of college or your children are; we need you for what you can do.
We strive to have parity of benefits across regions and while regulations differ from place to place, we believe taking care of our people is the right thing to do.
- Competitive pay based on the work you do here and not your previous salary
- Health coverage for you and your family in many locations
- Ability to craft your calendar with flexible locations and schedules for many roles
- Generous number of vacation days each year
- Double your charitable giving - We match up to $1500 (or local currency equivalent)
- Up to 40 hours each year to use toward volunteer projects you love
- Embracing parenthood with minimum of 16 weeks of parental leave
Amplify looking for a Junior-Mid Java Developer for its backend platform development, responsible for developing of
micro services using Spring Boot, RESTful Services, Cloud and Container based solutions. Working closely with the
members of the UK team as well as the technical lead, the Senior Java Developer role at Amplify will be responsible for
development of the Amplify Backend platform while maintaining high-quality, robust, performance software which
meets the needs of our business and clients.
Key Areas of Responsibilities
• Functional features development of Amplify backend RESTful web services using Spring Boot.
• Ensuring coding standard, micro service system architecture is well-maintained as per standards and core
principles of business.
• Working closely with remote Product, BA and Technical teams to ensure product requirements are met.
• Working closely with members of the team to complete the tasks on time and high quality.
• Keeping current with new technologies and making recommendations to the team while maintaining and
enhancing existing product code base.
• Working with members of the QA, DevOps and delivery teams to ensure products are tested, installed and
maintained to a high standard.
• Maintaining high quality coding standards within the team and support team in code and design reviews.
• Working closely with Technical Lead to ensure dev tasks completed on-time.
• Responsible for building TDD documents, UML and functional specification documents.
Key Requirements
• At least 2+ years’ commercial experience in Java based technologies and RESTful web services. Solid Hands-on
experience of Java/J2EE and Spring Boot or Spring Framework.
• Experience in Java, its core libraries and any of open source frameworks such as Spring Boot, Spring
Integration as well as Gradle, Maven etc.
• Experience of RDBMS and SQL Knowledge as well as NoSQL databases (Highly Desirable).
• Demonstrable knowledge of at least one of software development methodology (Agile Kanban/Scrum, Agile
SAFe) and structured approaches to development. Capable of working to strict deadlines.
• Experience in working with Spring framework and cloud-based technologies like AWS. Always open to adopt
to new technologies, techniques and standards.
• Understands DevOps culture and develop software with CI/CD pipeline in-mind.
• Self-motivated, pro-active and working with the other team members in taking up initiatives appropriate to
the business and the team.
2) Strong experience with Spring and Spring Boot, Spring MVC, Spring Data, Spring Security
3) Experience building REST and SOAP web services using Java, Micro Services
4) Experience with Web Services (JSON, REST, Spring based REST services)
5) Experience with Java and J2EE/Java EE (including servlets, JSP, JDBC)
6) Strong Core Java development
7) Experience with development tools like Eclipse, Git,.etc
8) Experience with web application servers like Tomcat
9) Experience in scripting and working in a Linux/Windows environment
Exp - 5 - 9 years
Skills : Java, Spring MVC, Spring Boot, HTML, CSS, JavaScript, Angular.js, RESTful APIs
- Looking for Senior Java Developers with strong core java skills and event-driven - microservices development.
- Exp. in Banking Domain added as advantage
Responsibilities:
1. Experience working in Lean and agile environments and practising Scrum
2. Designing of robust and scalable solutions to support Enterprise application
3. Develop and support middle ware applications using Java / Open Source
4. Provide second level support to fixes and solutions for issues in production
5. Enhance and maintain applications and components for Liquidity functions.
6. Experience in Designing scalable solutions
7. Engineering architecture, platform configuration, and documentation experience.
8. Knowledge of modern development lifecycles, such as Agile and iterative development
9. Knowledge of Biodata with HBase and spark is an added advantage
10. Collaborate with BA, QA and PM team members for effective testing and delivery.
Requirements :
1. 5+ years of experience in core Java
2. Experience in Spring MVC, Spring Boot
3. Strong database and data management experience in relational databases
4. Excellent verbal and written communication skills in English Desired Qualifications
5. Knowledge of HTML, CSS, JavaScript, Angular.js
6. Experience in event-driven workflow processing using Kafka, ActiveMQ, or Netflix OSS or similar
7. Exp. in Banking Domain added as advantage
Job requirements
- A strong engineer with excellent Ruby experience working with Ruby on Rails
- Experience with Node.js
- Experience with SQL/nosql databases(Postgresql, cassandra, MongoDB)
- Experience with REST services and API design
- Experience with building the system for scale
- Experience with version control systems (bitbucket, git etc.)
- Experience working with AWS
- Experience with docker/microservices will be an added advantage
- Knowledge of unit & integration testing
- Knowledge of agile development process, jira
- Strong knowledge of algorithms and Data structures
- Basic understanding of the HTTP protocol
- Demonstrated experience working on application development projects and test-driven development. Experience in writing high quality code
- Knowledge of blockchain technology, smart contracts and cryptocurrency will be an added advantage
- Experience in fintech domain will be another added advantage
- Bachelor’s degree in computer programming, computer science, or a related field.
- Fluency or understanding of specific languages, such as Java, PHP, or Python, and operating systems may be required.
- 3+ years of experience with Ruby On Rails.
- Strong Project & Time Management Skills, along with the ability to apply these skills while working independently, or as part of a team.








