Java Developer
at One of a largest retailers with half a million employees
Writing reusable, testable, and efficient code Design and implementation of low-latency, high-availability, and performant applications Integration of user-facing elements developed by front-end developers with server side logic Implementation of security and data protection
Skills and Qualifications :-
• Good Understanding of Java/J2EE programming language, Spring REST, Spring Boot, Spring Cloud , Microservices , NoSQL, Cassandra, couchbase, postgreSQL, Redis or any distributed cache stores, Kafka/spark
• Comfortable producing and refactoring code without assistance
• Hands on experience with dockers
• Hands on experience with cloud environments either AWS or Azure
• Able to do BDD or test driven development
• Hands on knowledge with test frameworks for automation
• Understands different major language paradigms (OOP/Functional)
• Knowledge of design patterns for REST application
• Can implement design patterns with guidance
• Understands CI and continuous delivery.
• Understands BDD/TDD/Performance/Security/Smoke testing
• Working knowledge of CI tooling
• Understands version control & branching strategies
• Comfortable translating small behaviour requirements into tasks & code

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JOB DESCRIPTION-
Exp - 5 to 8yrs
Job Summary
We are looking for a highly skilled and motivated Senior Software Engineer with strong expertise in Java (primary) and working knowledge of Python. The ideal candidate will be responsible for designing, developing, and maintaining scalable backend systems, while contributing to high-quality software delivery across the full development lifecycle.
Key Responsibilities
- Design, develop, and maintain robust, scalable, and high-performance applications using Java (Spring Boot / Microservices architecture)
- Develop reusable components and APIs with a focus on performance, security, and scalability
- Leverage Python for automation, scripting, data processing, or ML-related use cases (as applicable)
- Collaborate with cross-functional teams including Product, QA, DevOps, and Architecture
- Participate in system design discussions and contribute to technical decision-making
- Write clean, efficient, and well-documented code following coding standards and best practices
- Optimize applications for maximum speed and scalability
- Troubleshoot and debug complex production issues
- Contribute to CI/CD pipelines and DevOps practices
- Mentor junior engineers and perform code reviews
Required Skills & Qualifications
Technical Skills
- Strong hands-on experience in Core Java, Spring Boot, and Microservices architecture
- Solid understanding of RESTful APIs, multithreading, concurrency, and JVM performance tuning
- Practical experience with Python (automation, scripting, or backend development)
- Experience with databases: SQL (MySQL, PostgreSQL) and/or NoSQL (MongoDB, Cassandra)
- Familiarity with cloud platforms (AWS, Azure, or GCP)
- Strong knowledge of data structures, algorithms, and system design
- Experience with message brokers (Kafka, RabbitMQ)
- Exposure to containerization & orchestration (Docker, Kubernetes)
- Experience with version control systems (Git)
Preferred Skills
- Experience in distributed systems and event-driven architectures
- Knowledge of Python frameworks (Flask, FastAPI, Django)
- Exposure to big data technologies (Spark, Hadoop) or ML workflows
- Experience with CI/CD tools (Jenkins, GitHub Actions, etc.)
- Familiarity with observability tools (Prometheus, Grafana, ELK stack)
Soft Skills
- Strong problem-solving and analytical skills
- Excellent communication and collaboration abilities
- Ability to work in a fast-paced agile environment
- Proactive ownership and accountability
Greetings!
Wissen Technology is hiring for Java developers/Lead.
Required Skillset
- 6+ years of industrial experience
- Java and related frameworks.
- Experience in Core Java 1.8 and above, Data Structures, OOPS, Multithreading, Microservices, Spring and Swift Payments
- Exposure on Fintech domain is mandatory
- Should have the ability to analyse, design, develop and test complex, low-latency client-facing applications.
- Good development experience with RDBMS
- Good knowledge of multi-threading and high volume server side development
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
Company Profile:
Company Name : Wissen Technology
Group of companies in India : Wissen Technology & Wissen Infotech
Work Location - Bangalore
Website : www.wissen.com
Wissen Thought leadership : https://www.wissen.com/articles/
LinkedIn: https://www.linkedin.com/company/wissen-technology
Experience in Backend
Experience in Java ,Spring boot
Experience in Microservices
Experience in Data structure ,Algorithm
We’re doing things no one has ever done. From developing game-changing technology and solutions to
helping the world’s top brands connect like never before, every day brings new challenges and opportunities
to innovate. We offer the chance to make your mark on something awesome.
Skillset for : Java Developer
Experience : 4to 7 years
----------------------
Java basics, OOPs concepts, Thread concepts, Collections, Java 1.8 features
Database: SQL Joins
Experience in frameworks like SpringMVC, Springboot etc..
Experience in implementing Rest API
Some Java Design patterns
Good to have some experience on any Message broker, NoSQL db like Mongodb, ORM like Hibernate
Location: Bangalore
Education: Bachelor's degree in Computer Science or a related field or equivalent experience.
- Works towards developing Stable & Efficient Applications for
- Responsible for developing Applications which are Stable, Efficient and if required cross
- Responsible to create Native Applications for Android to achieve best performance.
- Responsible for understanding best UI Practices
- Responsible for creating Application UI utilizing latest Google UI Guide lines.
- Qualification: B.E. / B.Tech / M.C.A. in Computer Sciences.
- Should have Experience of at least one production environment Application in Google Play Store. GIT, Agile Frameworks, Jenkins
- Must have Java, Android, C, and C++.
industry experts.
● YOu will join the mission to create positive impact on millions of peoples lives
● You get to work on the latest tech stack and a team that is highly experimental.
● YOu get to work on AWS with a scalable, serverless and micro-services architecture.
● You get to work with super humans (Psst: Look up these super human1,super human2)
● You get to work in an accelerated learning environment
● All is possible when backed by investors who are committed and believe in the power of
decentralization of data using block chain technology
What you will do
● You will write clean and optimised codes that are well documented
● You will collaborate with and also mentor team members and
● You will contribute to the development effort of several Web Applications (internal as well
as customer-facing)
● You will adhere to best coding practices in front-end development across the team
● You will be agile, research oriented and experiment in learning new product disciplines.
● You will be responsible for the stability of your project and overall system health
post-release
● You will organize code reviews with peers and participate in tech brainstorming sessions.
What we need
● A Minimum 1 years of experience as a back-end engineer and minimum 1 years of
experience using Node JS or using Typescript/Java/Python/Golang.
● Skills to deliver quality APIs and systems using Node JS, Postgres and ElasticSearch
● Experience writing unit test cases
● Experience building Rest APIs using any ORM, bonus for GraphQL APIs
● Understanding of authentication patterns, logging and error handling
● Preferred having experience with working knowledge of React JS, AWS Lambda, API
Gateway, Pub-Sub model
● Understanding of design patterns and event driven architecture is an added advantage.
owners, business analysts and team members to analyse business requirements and proposed
solutions. A highly motivated and enthusiastic to join our Core Technology team and make a
difference.
Must-Have Skills:
• Candidate should have basic experience in Core Java and Advance Java design patterns
• Candidate should have basic experience in Advance Java frameworks – Spring, Hibernate,
JSP, Servlet.
• Good understanding of MAVEN & SVN is a must.
• Front end technologies knowledge is required to communicate with the web development
team. JavaScript, JQuery, AJAX, JSON.
• Collaborating with other teams. Excellent problem solving, debugging, design and debugging
skills required.
Good to Have Skills:
• Have good interpersonal and communication skills.
• E-commerce domain knowledge will be an add-on.
• Knowledge in API Design and docker.
• Knowledge of Agile methodologies
• Knowledge of Unit testing
Primary Responsibilities:
• Work closely with Tech Leads, Architects, Project Manager / Onsite Leads.
• Understand/apply reusable code design, leverage application architecture/framework
capabilities and functionality, and design/develop solutions that are highly reliable, scalable,
and perform to meet business-defined service levels.
• Contribute to the technical code and design documentation.
• Conduct code reviews and ensuring quality solutions are built and tested.
• Provide production support and issue triage for products.
Tatsam is a stealth mode, venture-backed mental healthcare company based in India. We're redesigning mental health and wellness experiences for the modern day working professional, have raised angel round from top-tier investors, and signed some of the largest Indian enterprises and startups for the upcoming private beta launch… and we’re just getting started.
The startup is led by a team of CXOs who are serial entrepreneurs (YC alumni, IIT alumni, CXO in large enterprises). They are supported by a team of behavioral design experts, clinicians and counsellors with vast experience, and technologists on a mission to improve mental health and wellbeing for the modern day working professional.
Responsibilities:
- Your primary responsibility as a senior backend engineer will be to architect and develop a scalable and robust micro-services backend with strong Java, Spring(Boot), MySQL, AWS/GCP.
- Experience being part of a software development team in an Agile/Lean/Continuous Delivery environment
- Be a key performer in a high-performance product engineering team
Qualifications:
- 1 to 4 years of overall IT experience. Most of this experience in Java (Core Java, J2EE, Springboot, Java collections, Java Multithreading)
- Should have experience designing database schemas - SQL and NoSQL.
- Exposure to frameworks like Spring, Hibernate, Play would be a plus
- Experience with microservices architecture would be beneficial.
- Working knowledge of any public cloud (AWS, GCP or Azure)
- Broad understanding and experience of real-time analytics, NoSQL data stores, data modeling and data management, analytical tools, languages, or libraries
- Bachelor's Degree in Computer Science or Engineering.
The Opportunity
You will enter a close group of exceptionally talented people who in the last 2-months have secured incredible investors, partners, clients and advocates. We will continue this momentum till our vision of being able to provide good mental health and wellbeing avenues for the modern day professionals is achieved. If we like each other and agree to partner in this journey, this has the potential of resulting in a compounded career and mental growth for you.
Ability to communicate across levels with excellent verbal and written communication skills
To be able to work in teams and collaborate with others to clarify requirements
To be able to assist in documenting requirements as well as resolve conflicts or ambiguities











