
Senior Backend Engineer
at Connecting new-age digital-first brands and end consumers
It is a platform that connects new-age digital-first brands with "relevant" sellers to sell their products and services to trust deficit, less tech-savvy users by building trust through assisted sales and support. It acts as a bridge between brands and the end consumers who need a physical touchpoint, in-person interactions, training, push, and motivation before buying a product/service.
We are looking for a passionate, self-driven, motivated, hands-on Tech enthusiast who has a strong understanding and is willing to shape, drive, and implement technology at our company. We are looking for someone who can build a product from scratch with a successful track record of building scalable software systems. If you are someone who believes in our core values and loves working in early-stage startups and enjoys working in a challenging environment, we welcome you with open arms!
This opportunity is for you if
● You have 4-6 Years of work experience in building highly-interactive applications using Java, Spring MVC, Spring JMS, Spring JDBC, Spring IOC, Spring Boot, MySQL, MiBatis, ReactJS, JavaScript, jQuery, AWS, JMS and have knowledge on a wide range of web technologies, tools, and Frameworks.
● You have experience in working with Restful web services
● You have strong knowledge and understanding of design patterns and domain-driven design
● You understand fundamental design principles behind building scalable, resilient, and
maintainable applications
● You have functional knowledge of inclusive design: accessibility, and related tooling
● You have consumer web development experience for high-traffic, public-facing web
applications
● You have a knack for writing clean, readable, reusable code
● You have good knowledge of TDD and CI/CD practices.
● You have experience in managing and publishing releases using Git branching and tools like NPM and YARN.
● You have a penchant for learning
● You are a great analytical & logical thinker and someone who loves solving problems
● You are passionate, energetic, enthusiastic and a go-getter
● You are “ FUN @ Work “

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Job Title: Senior Linux Kernel Engineer
Experience: 5–10 Years
Location: Bangalore / Chennai
Domain: Enterprise Linux / Kernel Development
Job Summary
We are seeking a highly skilled Senior Linux Kernel Engineer with deep expertise in kernel development, debugging, and performance optimization. The role involves working on enterprise-grade Linux distributions, kernel lifecycle management, security patching, and low-level hardware integration.
Key Responsibilities
1. Kernel Lifecycle & Maintenance
- Lead kernel upgrade strategies (e.g., LTS migrations such as 5.15 → 6.x) while ensuring stability and compatibility.
- Perform patch porting across kernel versions, resolving API and dependency conflicts.
- Track and mitigate security vulnerabilities by monitoring CVEs and upstream sources (e.g., LKML).
- Backport critical fixes to production kernels without impacting system stability.
2. Debugging & System Stability
- Act as an escalation point for kernel panics and system crashes.
- Perform post-mortem analysis using kdump, crash, and gdb.
- Debug early boot issues (UEFI, initramfs, kernel initialization).
- Conduct performance analysis using eBPF, ftrace, and perf to optimize system behavior.
3. Driver Development & Hardware Integration
- Design, develop, and maintain device drivers (network, storage, GPU, or character devices).
- Work closely with hardware through DMA, interrupts (MSI-X), and register-level programming.
- Maintain out-of-tree drivers using DKMS or similar frameworks.
- Ensure compatibility of drivers across kernel updates.
Required Technical Skills
- Programming: Strong expertise in C (mandatory) and C++
- Kernel Internals: Deep understanding of:
- Virtual File System (VFS)
- Memory Management (MMU, Paging)
- Process Scheduler
- Linux Networking Stack
- Debugging Tools:
- kdump, crash, gdb
- kprobes, trace-cmd, ftrace
- perf, valgrind
- Hardware debugging tools (JTAG, Serial Console)
- Build Systems:
- Kbuild, Makefiles
- Kernel packaging (RPM/Debian)
- Security:
- Experience with CVE patching and backporting
- Knowledge of SELinux/AppArmor
- Kernel hardening (FIPS, KSPP)
Preferred Skills
- Experience contributing to open-source kernel projects
- Familiarity with Linux Kernel Mailing List (LKML) workflows
- Exposure to enterprise Linux distributions (RHEL, Ubuntu, SUSE)
- Experience with performance tuning and system optimization at scale
1. Core Programming (C Language)
- Must have strong hands-on experience in C programming
- Comfortable with pointers, memory management, and low-level concepts
2. Kernel Internals Expertise
- Should have worked in at least one subsystem:
- VFS / File Systems
- Memory Management
- Scheduler / Networking
3. Debugging & Crash Analysis
- Experience handling kernel panics
- Hands-on with vmcore analysis tools
4. Security & Patching
- Understanding of CVE fixes and backporting
5. Driver Development
- Experience in writing or maintaining device drivers
6. Performance & Advanced Debugging
- Exposure to eBPF, ftrace, perf
7. Hardware-Level Understanding
- Knowledge of DMA, interrupts, hardware interaction
Soft Skills
- Strong analytical and problem-solving abilities
- Excellent communication skills
- Ability to work independently and in collaborative environments
- Quick learner with adaptability to new technologies
Position Overview: We are looking for a senior developer who must be capable of building services using modern microservices architecture with NodeJS & serverless frameworks. Should have strong knowledge of ObjectOriented Concepts, and Node. Js frameworks like loopback, RDBMS, and microservice patterns. The candidate should be comfortable with application coding based on design and specifications, and also be comfortable working with JSON and RESTful services. The candidate must be a top-notch developer committed to keeping learning new things and becoming an integral part of and fostering growth within our development team.
Roles & Responsibilities:
- Developing and maintaining the backend systems that support the application
- Designing and implementing APIs and Microservices architecture to handle the application workload
- Developing and optimizing queries for RDBMS (MySQL) to manage data and ensure performance and scalability
- Managing and deploying the application on AWS using Lambda, ECS and other related services
- Collaborating with front-end developers to ensure smooth communication between front-end and back-end systems and back-end systems
- Writing clean, neat and reusable code that follows coding standards and best practices.
- Participating in code reviews and ensuring that coding standards are maintained
- Troubleshooting and debugging issues that arise in production environments
- Optimizing the application for performance, scalability, and security
- Continuously learning and staying up-to-date with the latest technologies and best practices in software development
- Documenting technical specifications, processes, and system design
Backend .Net Developers
Vizag/Hyderabad/Remote
Contract / Fulltime
UK shift : 2- 11 PM IST
Exp Level: 6-10 years
Details:
.Net Core
C#
Experience in developing Microservices.
Experience deploying MicroServices in Docker containers
MVC or other design patterns
Container services in AWS/Azure
Experience with MS-SQL or Postgress
Knowledge on Message Queuing
EXCELLENT COMMUNICATION MUST
This role is a US Client facing, hence we need someone with excellent communication skills and also someone with prior US Client facing experience.
Interview Process:
Online Assessment
Call with our VP
End Customer Interview
- Participate in requirements analysis and design
- Development of Web applications and RESTful APIs using C#, .NET Core, ASP.NET Core, .NET Framework 4.7, C#, ASP.NET MVC, LINQ, Entity Framework 6.0, EF Core
- Development of Microservices using Clean Architecture, CQRS, .NET Design Patterns, SOLID Principles and Object-oriented design & analysis (OOA & OOD)
- Development of Microservices using Microsoft Azure or AWS, Dockers and Kubernetes
- Write clean, scalable code using .NET programming languages (C#)
- Write Microsoft SQL queries and optimize both external and internal DB processes and procedures.
- Use automation tools, following CI/CD best practices in an established DevOps team.
- Write unit and integration tests using Moq
- Collaborate with internal teams to produce software design and architecture
- Develop documentation throughout the software development life cycle (SDLC)
- Serve as an expert on applications and provide technical support

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Core Java, SpringBoot, MicroServices |
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- DB2 or any RDBMS database application development |
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- Linux OS, shell scripting, Batch Processing |
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- Troubleshooting Large Scale application |
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- Experience in automation and unit test framework is a must |
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- AWS Cloud experience desirable |
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- Agile Development Experience |
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- Complete Development Cycle ( Dev, QA, UAT, Staging) |
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- Good Oral and Written Communication Skills |
JAVA SPRING BOOT DEVELOPER - Immediate Joiners
Work Experience: 4-7 years
Work location: Hyderabad
Must Have Skills: Spring Boot
Desired Candidate Profile
Proficiency in core Java & Spring framework
Expertise in Web Service technologies.
Excellent knowledge in Databases and code integrations such as Postgres SQL, SQL Server, MySQL
Experience with Java Spring Boot, Hibernate Cloud Services, AWS, S3, Server-less lambda functions
Experience with security principles and frameworks
Knowledge of modern authorization mechanisms, such as JSON Web Token and OAuth2 - Familiarity with code versioning tools such as Git, etc.
Essential skills are Core Java/J2EE, functional aspects, Spring Framework, Swagger, Tomcat, SVN, Git, Postman/Newman.
Should have worked in Agile methodologies.
Good object oriented and problem solving skills.
Strong communication skills along with the ability to work in a highly collaborative environment.
Role & Responsibilities
- Design and develop features using Java, Spring, and Hibernate
- Ability to design database schema, develop views and stored procedures
- Maintain existing software systems by identifying and correcting software defects
- Review and analyse business requirements and provide technical feasibility and estimates
- Coordinate the workflow between the UX team and front end developers
Qualification
- 4-7 years of work experience developing Java-based backend applications
- Around 2 year of work experience using Spring Boot, Spring Cloud and Microservices
- Bachelor degree in computer science, or information technology, or other related field of study
- 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
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.
- 2+ years of experience building REST APIs with Java
- 1+ years of experience in maintaining REST APIs documentation.
- 2+ years of experience programming and delivering in a production environment
- Expertise working with data structures and algorithms
- Proficiency in object-oriented programming and experience applying modern design patterns.









