
Java GS Java Developer – Job Description 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. - 2- 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 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 Java GS 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

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.
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Job Title: Java Engineering Manager/Lead
Experience range:- 10 + Years
Location:- Pune / Mumbai
Knowledge and Skills:
- Strong proficiency in Core Java, Spring Boot.
- Experience with RESTful APIs, microservices, and multithreading.
- Solid understanding of RDBMS (MySQL/PostgreSQL).
- Exposure to cloud platforms (AWS, GCP, or Azure) and containerization (Docker, Kubernetes).
- Familiarity with CI/CD tools like Jenkins, GitLab, or GitHub Actions.
- Background in Fintech, particularly Digital Lending, Supply Chain Finance, or Banking products.
- Experience working in agile/scrum environments.
- At least 3 years of experience leading/managing a team of Java developers.
Key Responsibilities:
- Lead and mentor a team of Java developers, ensuring technical excellence and timely delivery.
- Actively participate in coding, code reviews, architecture decisions, and system design.
- Collaborate with cross-functional teams including Product Managers, QA, and DevOps.
- Maintain a strong hands-on presence in backend Java development and microservices architecture.
- Own the end-to-end lifecycle of features from requirement to deployment and post-release support
Role: Sr. Java Developer
Experience: 6+ Years
Location: Bangalore (Whitefield)
Work Mode: Hybrid (2-3 days WFO)
Shift Timing: Regular Morning Shift
About the Role:
We are looking for a seasoned Java Developer with 6+ years of experience to join our growing engineering team. The ideal candidate should have strong expertise in Java, Spring Boot, Microservices, and cloud-based deployment using AWS or DevOps tools. This is a hybrid role based out of our Whitefield, Bangalore location.
Key Responsibilities:
- Participate in agile development processes and scrum ceremonies.
- Translate business requirements into scalable and maintainable technical solutions.
- Design and develop applications using Java, Spring Boot, and Microservices architecture.
- Ensure robust and reliable code through full-scale unit testing and TDD/BDD practices.
- Contribute to CI/CD pipeline setup and cloud deployments.
- Work independently and as an individual contributor on complex features.
- Troubleshoot production issues and optimize application performance.
Mandatory Skills:
- Strong Core Java and Spring Boot expertise.
- Proficiency in AWS or DevOps (Docker & Kubernetes).
- Experience with relational and/or non-relational databases (SQL, NoSQL).
- Sound understanding of Microservices architecture and RESTful APIs.
- Containerization experience using Docker and orchestration via Kubernetes.
- Familiarity with Linux-based development environments.
- Exposure to modern SDLC tools – Maven, Git, Jenkins, etc.
- Good understanding of CI/CD pipelines and cloud-based deployment.
Soft Skills:
- Self-driven, proactive, and an individual contributor.
- Strong problem-solving and analytical skills.
- Excellent communication and interpersonal abilities.
- Able to plan, prioritize, and manage tasks independently.
Nice-to-Have Skills:
- Exposure to frontend technologies like Angular, JavaScript, HTML5, and CSS.
Responsibilities
- Clarify feature requirements with product team
- Design end to end feature flow
- Write scalable and bug free code
- Take care of test and deployment pipeline
- Maintaining the existing products
Skills And Qualification
- Must have experience with any scripting language (Javascript/NodeJS preferred)
- Experience with API-driven and highly scalable application is a plus
- Good knowledge of non relational DB (MongoDB preferred)
- Good with data structure and algorithms
- Good to have an experience with testing framework and CI/CD pipeline

Roles:
- Design, develop, implement, and maintain java application phases, code, and software.
- Conduct software analysis, programming, testing, and debugging, as well as recommending changes to improve the established processes.
- Transform requirements into stipulations and identify production and non-production application issues
- Competence and comfort using multiple frameworks (e.g. Spark, Storm, Hadoop, Angular 2/4/5, Spring Boot)
- Strong attention to detail with the ability to identify errors and make adjustments in a testing environment.
Must-Have Technology Skills:
- OOP Concept, Java 8+, Spring Boot, API development, Agile Scrum knowledge, Strong Databases design concepts of RDBMS, and capable of writing and optimizing complex queries.
Good understanding of any Database tool e.g. Postgres, MySQL, etc., - DevOps basic knowledge e.g. implementation of logging in the code, Application Performance Management.
- Basic API & Application security, and Basics of tuning application performance.
- Basic Understanding of DevOps concepts e.g. CI & CD, Deployment lifecycle, Basic understanding of unit testing concepts e.g. TDD (test-driven development).
- A basic understanding of Microservices patterns
- A basic understanding of Java scripting.
- Good understanding of UI Frameworks like Angular 8+
Must-Have Soft Skills:
- Verbal & Written English communication, Good Problem-solving skills,
- Good Planning skills,
- Team Player,
- Good leadership skills
- Good written and verbal communication
Job Description
- Good experience as a full-stack developer in DB-centric applications and should be able to write and optimize complex database queries
- Requirement gathering & understanding, effort estimation, technical design, project planning, and monitoring in an Agile environment.
- Work proactively & independently to address project requirements, and articulate issues/challenges with enough lead time to address project delivery risks.
- Providing expertise in technical analysis and solving technical issues during project delivery.
- Customer interfacing - understand customer requirements, and propose technical solutions.
- Full Software Development Lifecycle (Agile).
- Code reviews, test case reviews and ensure code developed meets the requirements.
- Component Design/ Coding/ Unit Testing/ Debugging / Test Driven Development / Continuous Integration.
- Carry out adaptive changes necessitated by changes in Business Requirements and Technology
SaveIN is India’s first ‘Buy now, Pay later’ platform for healthcare products and services. We offer flexible, low-cost repayment plans for a host of healthcare products and treatments, delivered through our network of healthcare providers.
We aim to create India’s largest integrated private healthcare ecosystem and build technology-first solutions to facilitate timely and quality care through enhanced affordability for millions of Indians.
We are backed by a strong set of global investors including Silicon Valley based Y-Combinator.
Our promise to you:
● We aim to hire the best of talent, passionate about the vision of SaveIN
● We aim to create an equal opportunity, open, challenging as well as rewarding environment to bring the best out of our people
● We are here to be a large, prosperous, profitable, and resilient organization so that we may serve our customers sustainably across economic cycles, we aim to achieve this most ethically and transparently possible
● Being compliant is not only an obligation but a chosen way of life
● We would love to see you grow and are committed to doing our best to contribute towards your success
About the role:
SaveIN is looking for a Software Engineer | Java, who enjoys solving challenging problems
and can develop and deploy APIs and Web applications using Java MVC Frameworks and
power a variety of classing leading digital products. You will work with developers, product
and founding team and would also be expected to lead a team of junior developers in the future.
Location: Gurugram
Key responsibilities:
● Work with business users to gather functional requirements
● Combine your technical expertise and passion for problem-solving to deliver end-to-end solutions
● Design and implement high-quality, test-driven code for various projects
● Unit Testing/Integration Testing
● Code configuration and release management
● Document technical design as per internal compliance standards
● Work with senior management and external stakeholders to ensure that deliverables are met
Skills and competencies:
● Education: BE/BTech/MTech/MCA
● Minimum 3 Years of experience in Web Application and API development, in Java 8 and above
● Working experience with MVC frameworks like Spring, Play, etc.
● Experience with Multi-threading, Collections, and concurrent API
● Working experience with web services and APIs (REST, SOAP)
● Experience in developing microservices in Spring Boot
● Experience working with tools like Git, and Maven.
● Experience writing high-quality code with fully automated unit test coverage (Junit, Mockito, etc.)
● Experience in defining and applying design/coding standards, patterns and quality metrics
● Working experience with data platforms (relational and/or NoSQL) and messaging technologies
● Excellent OOPs, data structure, and algorithm knowledge
● Understanding & experience in API management, Swagger
● Working experience with LINUX/UNIX environment and shell scripts
● Experience in working on public cloud infrastructure- AWS (EC2, ECS, Cognito, CloudWatch, SQS, S3)
● Understanding/experience with 3rd party integrations like CRM, payment gateways, performance marketing tools
We are looking for Advance Java developers who want to help us design cutting edge scalable products to meet our rapidly growing business.
Key Responsibilities : -
Build high availability and extreme reliable high volume transactional systems.
Deliver reliable solutions that handle massive data and high traffic. - Complete ownership of problem-free execution of owned modules and solutions.
Focus on code optimization, code quality, maintainability etc.
Skills required : -
MS or BS/B.Tech in computer science or equivalent experience from top college.
Hands-on experience in Core J2EE or Core Java (collection, multithreading).
Proficiency in Struts, Spring, Hibernate, JDBC, JSP, Servlets.
Strong working knowledge of Databases - MySQL/NoSQL, OS Windows/Linux.
Experience and knowledge of open source tools & frameworks, broader cutting edge technologies around server side development. Excellent data structure & algorithm and problem solving skills. Should be an active contributor to developer communities like Stackoverflow, Topcoder, Github, Google Developer Groups (GDGs). Customer-focused, react well to changes, work with teams and able to multi-task. - 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 fluid environment
Senior Software Engineer (L4 - Tech Lead)
Because you belong at Twilio.
The Who, What, Why and Where
Twilio is growing rapidly and seeking a Staff Software Engineer to lead the design and implementation phases of cloud-based distributed systems built to seamlessly scale to several million transactions per day.
Who?
As a Staff, Software Engineer (L4 - Tech Lead) in the Account Security team, you will lead the design and implementation phases of cloud-based distributed systems built to seamlessly scale to several million transactions per day. Not only will you be responsible for tackling some of the most complex and exciting technical problems in the industry, you will also be sharing your technical expertise with other engineers and leading them through an accelerated learning process.
You are intrigued by the intersection of the cloud, telecommunications and security spaces, how to harness the power of SMS and voice to enable millions of consumers to securely sign up and sign in every day using the services from the global brands they trust. You enjoy the challenge of owning a mission critical service and engineering it to work reliably in any circumstance.
You are also passionate about collaborating with multiple R&D and product teams, crafting together microservices and APIs that developers around the world will demonstrate to deliver new applications. You have strong communication skills, and a belief that team output is more important than individual output.
Minimum Qualifications
- 7+ years of experience with at least two programming languages such as Java, Scala, Python, Ruby, JavaScript or Go.
- 5+ years of experience working with modern agile product development teams of engineers, product managers and designers.
- 5+ years of Experience with SQL/NoSQL technology such as PostgreSQL, MySQL, DynamoDB understanding common use cases and performance pitfalls
- 2+ years of Experience dealing with event-driven architectures and message brokers such as RabbitMQ, KAFKA, ActiveMQ, etc and an in depth understanding of their use cases and pitfalls
- Versed in concepts such as DDD, SOLID, Cloud Native Patterns, distributed systems and architecture. Capable of understanding pitfalls and anticipating common failure modes of a microservice environment.
- Experienced in implementing prototypes and in practices and concepts such as MVP, A/B testing and feature toggles for rolling-out features to production.
- Strong communication skills: able to communicate effectively with technical and non technical partners
- Bachelor’s degree in computer science or equivalent professional experience.
- Passion for new technologies and proven capability in analysis and problem-solving.
- Strong troubleshooting and monitoring skills with practical experience in modern tools such as Kibana, Datadog, PagerDuty or related.
Preferred Qualification
- Experience with https://stackshare.io/twilio/verify-telephony">our stack
- Track record as a full-stack engineer
- Experience with AWS related technologies
- Background in telecommunications domain
- Background in security domain
What?
- BE AN OWNER: Take full end-to-end ownership of your services, from designing to operations and monitoring in production.
- EMPOWER OTHERS: Provide a safe work environment that embraces failure as a way of learning and inspires our engineers to be inventive and motivated.
- NO SHENANIGANS: You always act in an honest, direct and transparent way and uphold our values.
- WEAR THE CUSTOMER’S SHOES: Besides technical excellence, always keep in mind what is the business problem we are trying to solve for our customers and how our decisions impact them.
- WRITE IT DOWN: Evaluate opportunities, risk and technical strategies and provide key findings to internal partners.
- RUTHLESSLY PRIORITIZE: Work in a fast paced environment. It is key for you to understand, document and define risks that drive and enhance the organization's ability to prioritize while advising the business of these priorities.
- BE BOLD: Drive architecture and building systems for multiple orders of magnitude of growth. Every big idea starts small: open up the boundaries and keep raising the bar as solving small problems can bring big results. Never settle and keep pushing yourself and the teams forward.
- BE INCLUSIVE: Coach, mentor and inspire engineering teams by building and ensuring a safe and inclusive environment where all voices can be heard.
- DRAW THE OWL: Influence teams to continuously be improving while supporting progressive ways to solve problems; adopt new technologies and strategies where applicable.
- DON’T SETTLE: Always look for the next opportunity for Twilio to improve our quality, reliability and security to continuously earn our customers trust.
Why?
Our developers build the leading Twilio Verify service used by millions of customers around the world. Every day we push the boundaries of web-scale service delivery, operating with utmost reliability the API services that secure the online presence of the biggest brands. We are passionate about crafting simple APIs that developers will love.
By joining us you will have the opportunity to work on the next generation of Twilio multi factor authentication and identity verification services with a team of forward-thinking and supportive professionals who will care about helping you on a successful career path. Twilio is truly unique; we are a company committed to your growth, your learning, your development, and your entire employee experience. We only win when our employees succeed, and we're dedicated to helping you develop your strengths. We have a cultural foundation built on diversity, inclusion, and innovation, and we want you and your ideas to thrive at Twilio.
Where?
This position will be located in our office in Bangalore, India. You will enjoy our office perks: catered meals, snacks, game room, ergonomic desks, massages, bi-weekly All Hands and more. What you will also get to experience is a company that believes in small teams for maximum impact; seeks well-rounded talent to ensure a full perspective on our customers’ experience, understands that this is a marathon, not a sprint; that continuously and purposefully builds an inclusive culture where everyone is able to do and be the best version of themselves.
About Us
Millions of developers around the world have used Twilio to unlock the magic of communications to improve any human experience. Twilio has democratized communications channels like voice, text, chat, video and email by virtualizing the world’s communications infrastructure through APIs that are simple enough for any developer to use, yet robust enough to power the world’s most demanding applications. By making communications a part of every software developer’s toolkit, Twilio is enabling innovators across every industry — from emerging leaders to the world’s largest organizations — to reinvent how companies engage with their customers.
Invest in weeks dedicated to tackling hard problems and creating your own ideas. We have a cultural foundation built on diversity, inclusion, and innovation, and we want you and your ideas to thrive at Twilio
- B.E/ B.Tech / MCA in computer science or a related field
- 6+ Years of Java/J2EE work experience.
- Minimum 6 months in Team Lead position.
- Object-Oriented design, patterns, algorithms, data structures
- Well knowledge about Spring Hibernate framework.
- Exposure to React JS / Angular JS.
- Experience with SQL/No-SQL database technologies – MySQL, Mongo dB, Cassandra, Redis, PostgreSQL, etc.
- Good working experience in OpenStack/AWS & cloud application development and deployment
- Experience in Web services (REST or SOAP)
- End to end web development experience is highly preferred
- Good understanding of unit testing methodologies.
- Good analytical and communication skills
- Startup work culture mindset.
| • Experience of over 5+ years with solid understanding of object-oriented design • Proficient in Java, J2EE and related technologies. • Experienced in using Spring Boot, messaging systems. • Good understanding of relational database performance concepts and usage of ORM frameworks such as Hibernate • Expert understanding of the object-oriented design and programming concepts • Strong Knowledge on Data Structures, Algorithms and Collections. • Solid experience building applications on top of RESTful APIs. • Knowledge/experience with Spring MVC • Stroing knowledge in developing and executing automated unit, functional and integration tests • Good communication and analytical skills. • Strong trouble shooting skills. |










