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This Is NOT a Typical Java Role If your experience is mostly CRUD APIs, controller wiring, or shallow service layers — this role is not for you. We are looking for a top tier backend engineer who thrives on:
* Designing complex algorithms
* Building high-performance, memory-efficient systems
* Owning deep backend logic that actually moves the needle
You will work close to the core engine of the product, not the edges.
What You’ll Be Trusted With
* Architect and build backend systems that must perform under load
* Design and implement custom algorithms for real-world, non-trivial problems
* Solve performance bottlenecks involving CPU, memory, I/O, and concurrency
* Build backend services where latency, throughput, and correctness matter
* Own document & PDF processing pipelines end-to-end:
-Composition
-Rendering
-Optimization
- High-volume generation
* Make hard technical decisions and stand by them
Non-Negotiable Skills
* Exceptional Java expertise (Core Java, Spring Boot, Java 8+)
* Strong command over:
- Data structures & algorithms
- Multithreading & concurrency models
- JVM internals & memory management
* Proven experience building custom algorithms (this will be evaluated)
* Deep backend engineering experience with Spring / Spring Boot
* Strong understanding of:
- API design principles
- Fault tolerance & resilience
- Performance tuning & profiling
* Ability to reason about time complexity, space complexity, and trade-offs
* Strong database fundamentals (query optimization, indexing, transactions)
* Experience with message brokers (ActiveMQ, Kafka, RabbitMQ)
* Exposure to Kubernetes-based deployments or large-scale microservices
Interview Focus (Be Prepared)
* Algorithm design & problem solving
* Deep Java fundamentals
* System design discussions (backend-heavy)
* Performance tuning scenarios
* Real-world debugging and optimization challenges
Role Overview:
We are looking for a Lead Software Engineer with 7-10 years of experience to join our team in Bangalore. The ideal candidate should have strong expertise in financial services, databases, microservices. This role requires a mix of hands-on technical skills, leadership capabilities, and client engagement experience.
Looking for candidates from IIT/NIT/BITS/VIT
Investment Banking Domain Preferred
Key Responsibilities:
- Technical Leadership: Lead a team of developers, perform code reviews, and ensure high-quality software delivery.
- Microservices & Databases: Design, develop, and optimize microservices architecture with robust database integrations.
- Solution Delivery: Drive end-to-end software development, from design to deployment, ensuring on-time and high-quality project completion.
- Team Collaboration: Mentor junior engineers, provide technical guidance, and foster a culture of innovation and continuous improvement.
Required Skills & Experience:
- 7-10 years of experience in software development & leadership
- Expertise in financial services domain.
- Strong knowledge of databases (SQL, NoSQL) and microservices architecture
- Excellent client communication skills and ability to manage stakeholder expectations
- Hands-on experience in designing, building, and deploying scalable enterprise solutions
Why Join Wissen Technology?
- Work on cutting-edge projects for Fortune 500 financial institutions
- Be part of an innovation-driven team that values technical excellence and leadership
- Opportunity to work directly with business and technology leaders
- Competitive compensation and a dynamic work environment
We are looking for a skilled Java Developer with hands-on experience in Java, Spring Boot, and Microservices architecture to join our dynamic development team. The ideal candidate will be responsible for designing, developing, and maintaining high-performance, scalable applications that meet the needs of modern enterprise systems.
Key Responsibilities:
💠Design, develop, test, and deploy Java-based applications using Spring Boot and Microservices.
💠Collaborate with product managers, architects, and cross-functional teams to understand requirements and deliver solutions.
💠Build and maintain RESTful APIs for various business functionalities.
💠Participate in code reviews, debugging, and performance tuning.
💠Ensure best practices in code quality, security, and software development lifecycle (SDLC).
💠Maintain and improve existing systems and troubleshoot issues as needed.
💠Implement and manage containerized applications (e.g., using Docker, Kubernetes) where applicable.
💠Integrate third-party APIs and work with database systems (SQL and/or NoSQL).
💠Monitor and maintain application performance and scalability.
Required Skills & Qualifications:
💠Bachelors/Masters degree in Computer Science, Engineering, or related field.
💠Strong proficiency with Spring Boot and the broader Spring Framework.
💠Proven experience in building and deploying Microservices.
💠Knowledge of RESTful web services and API design.
💠Experience with databases like MySQL, PostgreSQL, or MongoDB.
💠Familiarity with CI/CD tools (e.g., Jenkins, GitLab CI) and version control systems like Git.
💠Understanding of containerization tools (Docker, Kubernetes is a plus).
💠Strong problem-solving and communication skills.
About Company
Our client is in the business of delivering cutting-edge software solutions, hardware systems, and IT services. It lends the right technological edge to governments and businesses. This enables them to achieve their organizational objectives efficiently and effectively to scale their businesses to newer heights.
Minimum Requirements/Qualifications:
• Bachelor’s/Master’s degree in computer science, Computer Engineering or a related field is preferred.
• Must have at least 5 to 7 years of experience in PostgreSQL.
• Sound knowledge of Object-Oriented Programming (OOP) Patterns and Concepts.
• Knowledge & hands-on experience with PostgreSQL, Java, and Spring Framework is a must.
• Additional knowledge of JDBC, Apache TomCat Server & relevant open-source technologies is required.
• Must have experience with Bootstrap CSS, jQuery, etc.
• Basic Understanding of the concepts of MVC (Model-View-Controller) Pattern, JDBC (Java Database
Connectivity), and RESTful web services.
• Experience in handling external and embedded databases.
Roles & Responsibilities
• Maintaining the Database, creating efficient queries, and understanding and improving the current database structure.
• Develop new modules, patches & Updates/upgrades for an existing application (developed in house by the client)
• Analyze user requirements to define business objectives.
• Maintain Java-based applications that can be high-volume and low-latency.
• Identify and resolve any technical issues arising.
• Write well-designed, testable code.
• Conducting software analysis, programming, testing, and debugging.
• Support continuous improvement, investigating alternatives and technologies, and presenting for architectural review.
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
- Ability to understand business requirements and translate them into technical requirements
- You will ensure that these components and the overall application are robust and easy to maintain.
- Have a good understanding of design and user experience principles.
- Open-minded, flexible, and willing to adapt to changing situations
- Ability to work independently as well as on a team and learn from colleagues
- High adaptability in a dynamic start-up environment
- Ensuring technologies are used efficiently, profitably, and securely. Evaluating and implementing new systems and infrastructure.
- Excellent troubleshooting, analytical and problem-solving abilities with a tenacious commitment to finding the root cause of issues.
Qualifications :
- B. Tech/ B.E. /M. Tech/ BCA / MCA or a related technical discipline from reputed universities
Skills Required :
- Minimum 1+ years of experience in REST API development using python.
- Must have experience with anyone popular python frameworks like Django, Flask, and FastAPI Framework.
- Experience in designing and developing Restful Web services and Remote procedure calls.
- Able to integrate multiple data sources and databases into one system
- Knowledge of load testing and optimizing code for performance, security, and scalability
- Experience with Unit testing frameworks in Python
- Knowledge of modern authorization & authentication mechanisms.
- Able to create database schemes that represent and support business processes
- Knowledge of Version Control System & basics of CI/CD
- Write and maintain technical documentation
- Solid foundation in OOPS, Data structures, and Algorithms
- Knowledge of SDLC phases of project development.
- Experience in one or more No SQL Databases such as MongoDB, and Cassandra.
- Experience with event-based databases and programming
- Good experience in synchronous programming and thread-based programming.
- Experience with schedulers.
- Good to have knowledge of Linux shell commands.
- Good to have experience in Kubernetes & Docker
- Knowledge of any Cloud Service like GCP or AWS would be an added advantage
- Cares deeply about writing Quality, Testable & Modular code
- Good to have an understanding of NLP.
We are looking for a Experienced Backend Developer, who is motivated to work on startup
culture and has working knowledge in Product development.
Duties and Responsibilities:
Design and Write Efficient and Structured code
Sound knowledge of Product lifecycle
Auto test and deployment using CICD
Experience in cloud technologies and understanding of the overall product architecture.
Collaborate with the product and tech team to design and launch new features.
Understanding and implementation of security and data protection.
God code versioning practices and experience on tools like GIT
Experience in Microservice architecture and API development using Java Springboot.
SQL
AWS working knowledge is an added advantage.
Role Specification: Knowledge of Java, Spring Boot, Mysql/SQL, Data Structures and algorithms
Responsibilities:
- Develop backend systems for our first product
- Build reliable, secure and performant backend systems
- Drive test coverage and continuous delivery automation within the team
- Mentor and provide feedback to teammates
Requirements:
- 5+ years of software development experience
- Strong computer science fundamentals
- Deep and wide knowledge of Java ecosystem
- Can write code that is readable, maintainable, secure and performant
- Know the importance of tests and how to approach writing different types of tests
- Good intuition for REST API design
- Deep understanding of relational databases, transactions, entity-relationship modeling
- Comfortable writing highly concurrent systems
- Experienced in using profilers, tuning garbage collection, optimizing SQL queries
Bonus:
- Understanding of domain-driven design concepts like ubiquitous language, bounded contexts, aggregates and domain events
- Know how to use test driven development as a design tool
- Good intuition for the principles underlying object-orientation, particularly encapsulation
- Understand the importance of immutability and of reducing the state-space of objects
- Know how to refactor large codebases safely
- Seek to identify key underlying ideas and use those as building blocks before reaching for shiny new tools
Job Description :
We are currently building a next generation consumer tech product at the intersection of AI ML through Mobile and Commerce. The product requires building proprietary frameworks using latest technologies.
We have an urgent requirement of a Backend Developer/ Fresher/ Intern, who would become core member of our Product Team, is a great problem solver, can learn quickly, and communicate clearly.
Must Have Skill Set :
-
Efficient software development background including design patterns, data structures, test driven development
-
Individual contributor with strong analytical skills, with excellent problem solving abilities. Excellent verbal and written communication skills
-
Should be able to work under tight deadlines and stretch as and when required
-
Self starter with the ability to research solutions independently and solve problems Strong, object oriented design and coding skills, c++/Java on a Linux platform Preferably with internship experience of Product based companies Working on products with strong Knowledge of SpringBoot and REST API frameworks Strong knowledge of Data structures and Algorithms
-
Hands on expertise in Database/Datastores - MongoDB, MYSQL, Elastic Search, Redis and Kafka will be a big plus
Key Responsibility :
-
Tasks will include complete responsibility for application design, code development, testing, deployment and maintenance
-
Develop code as part of an agile team to deliver new features enhancements Design and develop REST APIs
-
Follow approved life cycle methodologies, create design documents, and perform program coding and testing Develop plans outlining steps and time tables for developing programs and communicate plans and status to management
-
Work independently or with minimal supervision and utilize knowledge, experience and judgment to accomplish well defined goals
-
You should be at ease with maintaining cloud instances on AWS and other cloud services
-
You have experience in identifying, debugging and resolving complex production issues End to End ownership of various applications and microservices
-
Architect, design, develop, deploy and operate services that serve millions of users
What You Get :
1. You work with a team of passionate folks who love design and technology 2. Immense learning and growth opportunities in small, multi functional, tightly
knit teams
3. Flexible work timings; 5 days a week
4. Accelerated learning
5. Huge Responsibility early in your career which will come handy in future
6. Ownership and independence
Qualifications :
B.Tech/ MCA in Computer Science or equivalent
About QuHu
QuHu is an audio first content platform where users can create, share & distribute their content and the discovery happens via a feed based on interest graph. We aim to build an audio ecosystem with a global presence consisting of audio-based social networks and audio communities.
At QuHu, we want to cultivate a vibrant and growing online UGC audio community and interactive audio entertainment platform where users are encouraged to create, share, discover and enjoy audio, and experience immersive and diversified entertainment features through audio. QuHu envisions a global audio ecosystem – a place where everyone can be connected through voices and across cultures.
The two pillars around which QuHu is built are:
Users - for whom we want to solve the problem of discovery basis interest (algorithmically driven feed) and provide an impressive experience through audio- bites (short content), live audio, audio rooms & audio games.
Creators - for whom we want to make creation & editing a seamless process through a suite of 'creator tools' like sound mixing, trim, pitch shifter, voicemojis, voice filters, noise reduction, etc & help them monetise
Required Experience : 2 to 6 Years
Technical Skillsets Required :
- 2+ years of professional software development experience
- 2+ years of object-oriented Java / J2EE development
- Full SDLC experience (requirements gathering, architecture, development, QA, etc- )
- Experience with Spring (MVC, IOP/DI, REST, Security) & Hibernate/Spring
- Experience with SOAP / REST web services
- Knowledge of SQL
- Knowledge of No SQL concepts, understanding of Solr, Redis and Mongo DB is desirable
- Understanding concepts of CDN & Content Management
- Must have worked on any one messaging solutions
- Bonus Points for micro service design and development experience
- Bonus points for any mobile development experience
- Used Agile methodology
- Experience leading or working with cross geography teams
- Bonus Points for experience working on Unix, shell scripting & Build Systems
- Experience in performance optimization is an added advantage
- Bonus points on having Hands-on Experience at least at basic level with Solr / ElasticSearch
- Knowledge on Micro-service architecture must
POSITION :
- You will be actively involved during the entire technology development lifecycle. Responsibilities will include all aspects from design, coding, testing, customer feedback cycle changes and support.
- Primary role in software development with object-oriented Java
- The customized solutions that you will be architecting and developing will also require knowledge and experience with spring / Hibernate, SOAP / REST, and SQL.
- Ability to learn new technologies quickly and willingness to read and digest large existing source code and take ownership on complex component or subsystem to drive improvements and re-architecture
- Work with a team of amazing developers and designers involved in the design and development of global platforms
- Invent and prototype new features, build, test and ship them to customers as SaaS, cloud based or hosted product platforms
- Drive the implementation of new technologies which improve our ability to build great customers products.
- Participate in a fun, open learning environment with great benefits and smart talented folks that represent among the best globally.
QUALIFICATION :
- A Bachelor's degree in Computer Science (or equivalent experience)
- M-Tech or advanced degree a plus
- Hackathon participation and accolades are a plus
Job Role :
- Quinbay is an upstart digital platforms and products company with a core focus on disrupting traditional markets and business models with the strength of our innovation driven digital value. We harness the power of our open innovation culture, our unique talent selection approach, the skills and expertise of our people across various industries, domains and technologies and a unique blend of analytics driven strategies for creating future digital platforms.
- OPPORTUNITIES : Pursue opportunities in and learning/growth interests in Mobile, product development, product management, Analytics, Machine learning, UI/UX design, DevOps, Automation, Drones, bots and Java / open source development frameworks and methodologies - on a variety of domains like eCommerce, Logistics and fulfilment, Mcommerce and a whole lot others.
- Opportunities to be part of fastest growing eCommerce platforms in exciting application areas like core commerce, supply chain, logistics and fulfilment, merchant, mobile commerce, analytics, automation and a lot more for the global markets positioned for Asia.









