Qualifications
• 4+ years of professional software development experience
• 4+ 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
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, Ecommerce and a whole lot other.
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.

About Quinbay technologies
About
Quinbay Technologies is committed to being at the forefront of digital innovation and is building the future. The future of eCommerce is being shaped by their high-performing teams, which are composed of people that are exceptionally competent and devoted. The company's mission is to create cutting-edge technologies for use in eCommerce in the future. They are on a journey in which they are addressing basic concerns on the delivery of software and business.
The supply chain will be the factor that decides whether an e-commerce platform comes out on top. Quinbay Technologies makes improvements every day in the areas of speed, cost, and quality. Our specialists in the Supply Chain are working on developing one of the most innovative and scalable systems that are centered on the delight of customers.
Connect with the team
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Job Title : Backend Engineer (AI-First | FinTech/Crypto)
Experience : 3 to 6 Years
Location : Gurugram (Sector 49)
Working Hours : 10:00 AM – 6:00 PM
Work Mode : On-site | 6 Days Working
Employment Type : Full-time
Role Overview :
This is not a typical ticket-based engineering role. You will take end-to-end ownership of systems—designing architecture, building scalable solutions, and solving real-world performance challenges.
We operate in an AI-first engineering environment, leveraging advanced tools and automation workflows to build high-performance distributed systems.
Mandatory Skills :
Java/Spring Boot or Node.js, System Design (HLD/LLD), Distributed Systems, Event-Driven Architecture (Kafka/RabbitMQ), Low-Latency APIs, PostgreSQL/MongoDB, CI/CD, Docker/Kubernetes, AI-assisted development (Copilot/Cursor/Claude)
Key Responsibilities :
- Design and build scalable backend systems (Java/Spring Boot, Node.js, or similar).
- Architect and implement event-driven systems (Kafka, RabbitMQ, pub/sub).
- Develop secure and reliable financial systems with strong data integrity.
- Solve scalability and performance challenges in fintech/crypto environments.
- Own features end-to-end: design → development → deployment → monitoring.
- Work with real-time data pipelines (WebSockets, streaming, event sourcing).
- Define service contracts and optimize system architecture.
AI-First Engineering (Must-Have Mindset) :
You will :
- Use tools like GitHub Copilot, Cursor, and Claude in daily development
- Follow spec-driven development using structured instructions
- Review, validate, and ship AI-generated code with strong engineering judgment
Core Requirements :
- 3+ years of backend development experience.
- Strong expertise in Java (Spring Boot) or Node.js.
- Solid understanding of System Design (HLD/LLD, Distributed Systems).
- Experience with event-driven architectures (Kafka, RabbitMQ, async pipelines).
- Hands-on experience building low-latency, high-throughput systems.
- Strong database knowledge (PostgreSQL, MongoDB, etc.).
- Understanding of security, performance optimization, and reliability.
- Experience with CI/CD, Git, Docker, Kubernetes.
- Exposure to React / React Native is a plus.
Good to Have (Differentiators) :
- Experience in FinTech / Crypto / Web3 / Blockchain.
- Built systems for trading, payments, or real-time financial data.
- Experience with AI agents, automation pipelines, or agent-based systems.
- Exposure to parallel AI workflows (coding / testing / refactoring).
- Contributions to open source or technical blogs.
- Experience handling production-scale systems.
- Experience in Core Java, CXF, Spring.
- Experience in spring boot, microservices.
- Extensive experience in developing enterprise-scale n-tier applications for the financial domain. 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, preferably Sybase database
- Good knowledge of multi-threading and high volume server side development
- Experience in sales and trading platforms in investment banking/capital markets
- Basic working knowledge of Unix/Linux
- Excellent problem solving and coding skills in Java
- Strong interpersonal, communication and analytical skills.
- Should have the ability to express their design ideas and thoughts.
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 clientfacing 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.
Please find the attached study material.
Data structure and Algorithms-
1. Basic Strings, Array and Mathematical based problems.
2. Sliding window problems
3. Problems solved using HashMap, Set and Stack.
⚠️ Important Note (Please Read Before Applying):
- Only candidates with 5–8 years of relevant experience should apply.
- Freshers or candidates with less than 5 years of experience – please do not apply.
- Only immediate joiners or candidates currently serving notice will be considered.
Job Title: Java Developer (5–8 Years)
Location: Bangalore (Hybrid Mode)
Experience: 5 to 8 years
Joining: Immediate / Notice Serving Only
About the Role:
We are looking for passionate and highly skilled Java Developers to join our dynamic team in Bangalore. The ideal candidate will have strong expertise in Java, Spring Boot, Collections, Multithreading, and Data Structures & Algorithms (DSA), with proven problem-solving abilities.
Key Responsibilities:
- Design, develop, and maintain high-performance, scalable, and secure applications.
- Work with Spring Boot and related frameworks to build microservices-based solutions.
- Optimize code using Collections & Multithreading concepts for performance and reliability.
- Apply strong DSA and problem-solving skills to deliver efficient solutions.
- Collaborate with cross-functional teams to ensure timely delivery of high-quality software.
- Troubleshoot, debug, and resolve production issues efficiently.
Required Skills & Experience:
- 5–8 years of hands-on experience in Core Java and Spring Boot.
- Strong expertise in Collections, Multithreading, and Concurrency.
- Solid understanding of DSA, Algorithms, and System Design fundamentals.
- Experience in developing REST APIs and Microservices.
- Proficiency in writing clean, maintainable, and efficient code
- .Strong analytical and problem-solving skills.
Why Join Us?
- Opportunity to work on cutting-edge projects with modern architectures.
- Hybrid work setup in Bangalore.
- Fast-paced and growth-driven environment.
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Whom are we looking for?
Our groundbreaking technology, requires highly skilled and talented Web Backend Developers to understand the depth of the problem and device a solution for it.
We are seeking a Software Engineer, with a depth of experience in developing Web Applications enabled using REST APIs backed by a data warehouse solution, to join our growing company and be a part of our success story. We are looking for individual with great attention to detail, who is genuine, confident, committed and not only passionate about technology, but excited to work in a fun and friendly start-up environment. The ideal candidate will be passionate about technology and getting things to work while at the same time being able to mentor (and lead) other engineers by way of example to achieve excellence in their work.
What does the role involve?
As a Web Backend Software Engineer you will be responsible for creating REST APIs which are used to drive the User Interface. Given the nature of the application, these APIs needs to be very efficient and high performing. This requires optimising queries for faster execution and introducing database changes that may be required.
You would be working with a complex technology stack which includes (but is not limited to) Spring, Hibernate, HornetQ, Quartz, etc. This requires extensive understanding of transaction management and data handling across different application layers.
In addition to the technical ownership, you will also be involved in detailing requirements for requested functionalities and be responsible for providing technical insight into how requirements will be implemented and made available to users. Accurate estimation of tasks and planning are qualities we look for in our engineers.
Responsibilities include:
Develop, test, implement and maintain application software
Take part in software and architectural development activities
Transform requirements into implementation details
Debug application issues and helping support respond to client queries
Participate in application development meetings
Provide accurate estimates, clearly communicate status of tasks and identification of risks
Commitment to accomplishing the task at hand and identify the fastest and most reliable way to solve a problem
Performance tuning of application code at different service levels
Incorporate design changes to improve performance of the application
Interact with customers of the application and help address issues reported
Interact with customers of the application and collect requirements or potential uses cases and draft technical and user requirements
ESSENTIAL SKILLS / EXPERIENCE REQUIRED:
Minimum Bachelor's degree in Computer Science or equivalent
Minimum 2+ years experience with Java and J2EE/Java EE
Minimum 2+ years experience with Spring MVC, Spring Security and Hibernate
Strong understanding of relational database and normal forms
Strong understanding of SQL concepts and ability to write optimised and high performing queries
Strong understanding of Java concurrency, concurrency patterns, experience building thread safe code
Experience building RESTful web services
Experience with web application servers like JBoss
Strong written and verbal communication skills
Strong interpersonal skills and time management skills
Strong problem solving and analytical skills
Experience using task tracking systems e.g. Jira and distributed version control systems e.g. Git
DESIRABLE SKILLS / EXPERIENCE:
Understanding of testNg/JUnit
Unix/Windows shell and related command line tools
Experience in Continuous Integration and deployment tools such as Jenkins
Experience with database partitioning and column Indexing
Experience with query optimisation techniques
Why work for us?
Above market remuneration
Stimulating challenges that fully utilise your skills
Work on real-world technical problems to which solution cannot simply be found on the internet
Working alongside other passionate, talented engineers
Hardware of your choice
Our fast-growing company offers the potential for rapid career progression
Click Here to apply: https://hire.withgoogle.com/public/jobs/blueoptimacom/view/P_AAAAAAEAAADLjl0iWO3_0a?trackingTag=cutshort
|
Mandatory Skills |
Good to Have Skills |
|
JDK 1.8 + |
PLSQL |
|
Microservices |
Knowledge of SQL Performance Tuning |
|
Spring framework |
Experience with Cloud |
|
Spring Boot |
Knowledge of Cloud Foundry (Pivotal CF) |
|
Java Messaging Services (JMS) / Kafka / Rabbit MQ |
On-call support experience with PagerDuty, Service Now |
|
SOAP & REST APIs |
Knowledge of infrastructure monitoring tools like Nagios, New Relic |
|
SQL |
Knowledge of Splunk |
|
ORM technologies like Hibernate / IBatis / MyBatis |
Experience working with Lean and Extreme Programming (XP) |
|
Continuous integration tools like Jenkins/ Bamboo |
NoSQL databases such as MongoDB or any other NoSQL DB |
|
Code Quality tools/frameworks like Sonar / PMD |
Automated Integration Testing & Contract Testing |
|
Automated Testing. Unit Testing, |
|
|
Agile development methodologies |
|
You have 7 years or more of backend development experience with expertise in designing and
implementing high-performance applications.
Worked with and built high performance products using Node Js/GoLang/ Python and have seen
the product evolution cycle from PoC to Production
You have a deep understanding of design principles and can rightly judge/implement solutions to
complex problems
You are capable of writing high-quality code that conforms to the standards and best practices in a
particular language/framework.
You have experience building a product using a mainstream library or framework.
You love to own end to end responsibility, starting from defining the problem statement (either
yourself or alongside your peers), development (PoC if needed), testing, releasing in staging & then
production environment, and finally monitoring.
- Develop, maintain and support company
- Assist in technical specification and solution design documentation to address customer needs
- Ensure customer implementations are delivered to meet/exceed customer expectations
- Collaborate with cross-functional teams on project delivery, solution development, and deployment as needed
Requirements:
- 2+ years experience in a software development/consulting role, preferably in comprehensive eBusiness and Supply Chain Solutions
- 2+ years experience in Software Analysis, Design, and Development using J2EE technology stacks (Core Java, JSP, XML, Hibernate & Java scripts) and Oracle database (PL/SQL)
- 2+ years experience with the configuration and Installation of J2EE servers like Web logic, Web Sphere, and Oracle
- 2+ years experience with integration technology (knowledge of EAI and B2B tools)
- 2+ years working knowledge of UNIX system (Solaris and Linux)
- Exceptional verbal and written communications skills
- Excellent interpersonal & planning skills and cross-group coordination at all levels
- Bachelor Degree in Computer Science, or equivalent
- Willing to travel when needed.
Preferred (Optional) Skills:
- Supply-chain domain experience implementing and integrating Global Trade Management solutions
- Experience in the integration, deployment or support of an ERP, SCM, or similar systems from SA










