Java Developer at Card91 · Bengaluru (Bangalore) · 2 - 5 years · ₹15L - ₹30L / yr (ESOP available) · Raised funding · Posted 24 Aug 2021

Card91 is simplifying business payments by providing a plug and play issuance infrastructure
to businesses for domestic and cross-border payments. Our full stack platform enables
businesses to gain control and visibility into their payment flows, controlling the entire payment
lifecycle from onboarding, to issuance, to transaction and data reconciliation. The platform
aims to provide holistic solutions around payment issuance and distribution management. Our
deep focus in payments will help us in bringing new issuance formats as well as technologies
to businesses.
The company has been founded by seasoned technology entrepreneurs who have founded
successful companies like Myntra, Mastiff Technologies earlier. Headquartered in Bangalore,
with presence in Mumbai and NCR, Card91 aims to disrupt the payment infrastructure space
in the issuer-processor segment.
Position: Java Developers
We are building our core team which will be responsible for a highly scalable, always available
microservices based backend for payment processing. The developer will be involved with the
design, implementation, and execution from day one and build a robust, secure, and scalable
payment processing engine.
Roles & Responsibilities
● Individual Contributors talking full ownership of the micro services
● Design and Implement the micro services from scratch
● Be creative and always try to evaluate new strategies to execute faster
● Team player and always eager to teach new team members about the code, structure
and design
● Not afraid of bringing new designs (even languages) which will make the system
execute faster
Experience and Qualifications
● Having 2 - 5 years of experience
● Degree from a premier institute like IIT/NIT/BITS is desirable
● A strong expertise in Java/Spring/Spring Boot/Hibernate/Java
● Experience in developing highly scalable and reliable web applications, including
integration with internal and external systems.
● Experience building web services in REST with technologies like Spring Boot, Spring-
WS, spring MVC or JAX-RS
● Should be able to write test cases (unit and functional) to cover most of the code
● Experience in databases like MySQL and NoSQL db like Cassandra, etc.
● Experience with Cloud computing AWS & Microservices architecture
● Exposure to front end technologies like VueJS, ReactJS etc is an advantage
● Knowledge on Redis, ELK stack or Temporal BPM is a big plus
● Docker & Kubernetes experience is a big plus
● Previous experience of Fintech company is an added advantage
What’s on offer
● Vibrant, fun and rewarding culture that nurtures and promotes excellence
● Opportunities to learn and interact with payment industry leaders
● Competitive remuneration, group health insurance & PF
● Other office perks of being part of an early-stage Start-up
● Location: HSR Layout, Bangalore

About Card91
About
Connect with the team
Similar jobs (10)
Company Overview:
Euphoric Thought Technologies is a technology-driven firm focused on building scalable software solutions for the digital enterprise. Operating at the intersection of cloud computing and enterprise software, the company develops high-performance platforms that streamline complex business operations. With a strong presence in the Bangalore tech ecosystem, Euphoric Thought Technologies supports clients across diverse sectors by delivering robust, secure, and efficient backend architectures that power modern digital experiences.
Role Overview:
As a Java Developer, you will be responsible for designing and maintaining the core backend systems that drive our client platforms. You will work closely with cross-functional product and engineering teams to translate complex business requirements into high-quality, maintainable code. Your contribution will directly impact the scalability and reliability of our services, ensuring that our end-users experience seamless performance as we continue to expand our technical footprint.
Key Responsibilities:
- Develop and maintain high-performance backend services using Java and Spring Boot to ensure system reliability for our enterprise clients.
- Design and implement scalable microservices architectures that allow for modular growth and easier maintenance of complex application features.
- Optimize database interactions and data persistence layers using Hibernate to improve application speed and resource efficiency.
- Build and expose secure RESTful web services to facilitate seamless communication between internal systems and third-party integrations.
- Deploy and manage application infrastructure on AWS to ensure high availability and fault tolerance for mission-critical business processes.
- Collaborate with engineering leads and stakeholders to troubleshoot production issues and implement performance enhancements that improve the overall user experience.
Required Skillset:
- Demonstrated expertise in Java development with 3 to 6 years of hands-on experience in building enterprise-grade applications.
- Proficiency in Spring Boot and Hibernate for developing robust backend frameworks and managing complex data models.
- Strong understanding of microservices architecture and the ability to design decoupled, scalable service components.
- Practical experience in developing and consuming RESTful web services within a distributed environment.
- Hands-on experience with AWS services for cloud deployment, monitoring, and infrastructure management.
- Excellent communication skills with the ability to articulate technical concepts to both technical and non-technical stakeholders.
- Ability to work effectively in a hybrid office environment in Bangalore, collaborating with distributed teams to meet project milestones.
Job Title: Software Engineer / Senior Software Engineer – Java Backend
Experience: 5–10 Years
Location: Pune (Baner) – Work from Office (5 Days a Week)
About the Role :
We are looking for passionate Java Backend Engineers to build highly scalable, high-performance enterprise applications used by millions of users globally. The ideal candidate should have strong experience in Java, Microservices, Payment Gateway integrations, and Checkout platform development, with a product engineering mindset.
Candidates from FinTech, E-commerce, Payments, or Product-based companies will be preferred.
Key Responsibilities :
Design, develop, and maintain scalable backend applications using Java and Microservices.
Build secure, high-performance REST APIs and distributed services.
Develop and enhance Checkout platforms and Payment Gateway integrations for seamless payment processing.
Collaborate with Product, Architecture, QA, and DevOps teams throughout the SDLC.
Participate in system design, architecture discussions, and technical decision-making.
Ensure high code quality through unit testing, code reviews, and engineering best practices.
Build and support CI/CD pipelines and containerized deployments.
Troubleshoot production issues, optimize performance, and improve application reliability.
Mentor junior engineers and contribute to engineering excellence.
Required Skills :
5–10 years of backend development experience.
Strong expertise in Java, Spring Boot, Spring MVC, Hibernate/JPA.
Hands-on experience with Microservices Architecture.
Experience building RESTful APIs.
Strong knowledge of SQL/NoSQL databases.
Experience with Payment Gateway Integration (Stripe, Adyen, Razorpay, Worldpay, PayU, Checkout.com, etc.).
Hands-on experience developing Checkout and Payment Processing workflows.
Understanding of Payment Lifecycle, including Authorization, Capture, Refunds, Settlement, Webhooks, and Transaction Management.
Experience with Docker, Kubernetes, and containerized applications.
Good understanding of CI/CD pipelines using Jenkins or similar tools.
Familiarity with Git, Agile methodologies, and engineering best practices.
Strong problem-solving and debugging skills.
Preferred Skills :
Experience working in FinTech, Payments, E-commerce, or Product-based organizations.
Exposure to Cloud Platforms (GCP/AWS/Azure).
Experience with Kafka or event-driven architecture.
Knowledge of OAuth2, JWT, Keycloak, or similar authentication mechanisms.
Experience with Monitoring & Observability tools (Grafana, Prometheus, ELK, Splunk).
Performance tuning and scalability optimization experience.
Preferred Background :
Candidates from FinTech, Digital Payments, Banking Products, E-commerce, or Product Engineering companies.
Experience working on high-volume transaction systems handling secure payment processing and checkout experiences.
Key Technical Requirements
- Strong hands-on experience in Java
- Strong Java coding/programming skills
- Strong experience with Hibernate
- Strong experience in REST APIs
Mandatory Domain Experience
Candidates must have experience in the Financial Services, Banking, or Payments domain.
Screening Guidelines
- Look for candidates based in Pune only, as the 2nd/final round will be mandatory F2F.
- Prioritize Immediate Joiners or candidates currently serving their notice period.
- Candidates should demonstrate strong hands-on Java coding along with solid Hibernate and REST API experience.
- Immediate Joiners: We can plan their interview rounds during this week itself, if required.
About StrideOne
StrideOne is a leading fintech platform enabling businesses with innovative supply chain finance and working capital solutions. We partner with enterprises, MSMEs, and financial institutions to simplify access to credit through technology-driven lending solutions. At StrideOne, you'll work in a fast-paced, collaborative environment where innovation, ownership, and continuous learning are encouraged.
About the Role
We're building Credit Engine, a lending platform on top of Apache Fineract that powers credit assessment, disbursement, repayment, and portfolio management for our clients. We're looking for a Java Developer to help build and scale the backend services behind these workflows.
What You'll Work On
- Build and maintain backend services for lending functions — organisation/office management, portfolio and product configuration, cash margin engines, and credit workflows.
- Design and consume REST APIs integrating with internal modules and external banking/financial partners.
- Extend Apache Fineract to support custom lending products and business rules.
- Design and optimize MySQL schemas/queries for transactional, audit-heavy financial data.
- Translate lending/credit policies (interest computation, grace periods, margin calculations) into tested, production-grade code.
- Debug production issues in systems handling real money movement, with focus on correctness and data integrity.
- Participate in code reviews and API/service design discussions.
Must-Have Skills
- 2+ years hands-on Core Java (Java 8+) — OOP, collections, concurrency basics.
- Experience building REST APIs with Spring Boot.
- Strong MySQL skills — schema design, indexing, query optimization, transactions.
- Understanding of transactional consistency, data integrity, and audit trails.
- Comfortable with Git-based collaborative workflows.
Good to Have
- Experience with Apache Fineract or similar core banking/lending platforms.
- Exposure to microservices, message queues, or event-driven systems.
- Familiarity with cloud platforms (AWS/GCP/Azure) and CI/CD.
- Frontend exposure (Angular/React) for API contract collaboration.
- Prior experience in fintech, NBFC, banking, or supply chain finance
Job Summary:
We are seeking highly skilled Java Developers with hands-on experience in developing
enterprise-scale applications, preferably within the financial services domain. The role
requires expertise in Core Java, Microservices, and high-performance server-side
development.
Key Responsibilities:
• Design, develop, and maintain enterprise-scale n-tier applications in the financial
domain.
• Develop complex, low-latency, client-facing applications with a focus on performance
and scalability.
• Work with Microservices architecture, Data Structures, OOPs, Algorithms, and
Multithreading.
• Perform high-level and low-level design for critical applications.
• Collaborate with cross-functional teams to define, design, and deliver new features.
• Ensure best practices in coding, architecture, and application performance.
Requirements:
• Strong experience in Core Java 5.0 and above, Spring, and CXF.
• Extensive experience in enterprise application design patterns and architecture.
• Strong development experience with RDBMS (preferably Sybase).
Experience: 7+ years
Location: Mumbai
Mode of Work: Hybrid
• Hands-on expertise in multithreading and high-volume server-side applications.
• 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.
• Ability to express design ideas and collaborate effectively with teams
Urgent Requirement 🔥
👉 Java Backend with AWS
👉 Java Backend with React, Spring Boot, Microservices
Exp: 3+ Yrs
Loc: Chennai, Bangalore, Hyderabad
Immediate Joiners Preferred!
Java Developer – Playwright
Experience: 5–10 Years
Location: Bangalore
Primary Skill: Java Development – 80%
Secondary Skill: Playwright – 20%
Job Summary
We are looking for a skilled Java Developer with 5+ years of experience in designing, developing, and maintaining scalable Java applications. The candidate should have strong hands-on expertise in Core Java / Java 8+, backend development, and a good understanding of software development practices.
Experience with Playwright for UI automation and testing is required as a secondary skill. The role will involve approximately 80% Java development and 20% Playwright-based automation/testing.
Key Responsibilities
- Design, develop, and maintain scalable applications using Java.
- Develop clean, efficient, reusable, and maintainable code.
- Work on backend services, APIs, business logic, and application components.
- Troubleshoot and resolve application issues and performance bottlenecks.
- Participate in code reviews and follow coding and development best practices.
- Collaborate with product managers, architects, QA engineers, and other development teams.
- Develop and integrate RESTful APIs and backend services.
- Write unit and integration tests to ensure application quality.
- Contribute to CI/CD and Agile development processes.
- Develop and maintain automated UI test cases using Playwright.
- Use Playwright to validate web application functionality and support regression testing.
- Investigate and resolve automation failures in collaboration with QA and development teams.
Required Skills
- 5+ years of professional experience in Java development.
- Strong knowledge of Core Java, Java 8/11/17+, OOP, collections, exception handling, multithreading, and Java fundamentals.
- Strong experience with Spring / Spring Boot.
- Good experience developing REST APIs and microservices.
- Experience with SQL and relational databases.
- Good understanding of design patterns and software development principles.
- Experience with Git and build tools such as Maven or Gradle.
- Hands-on experience with Playwright for web automation.
- Good understanding of automated testing concepts.
- Experience working in Agile/Scrum environments.
- Strong analytical and problem-solving skills.
Good to Have
- Experience with Microservices architecture.
- Knowledge of Docker/Kubernetes.
- Experience with cloud platforms such as AWS, Azure, or GCP.
- Knowledge of Kafka or other messaging technologies.
- Experience with CI/CD tools such as Jenkins, GitHub Actions, or GitLab CI.
- Experience with JUnit/Mockito and API testing.
- Familiarity with Selenium or other UI automation frameworks.
Education
Bachelor’s degree in Computer Science, Engineering, or a related technical field.
Role Summary
Java Development: 80%
Playwright Automation: 20%
Experience: 5–10 Years
Location: Bangalore
Experience
9–18 Years
Education
IIT / NIT graduates only
Interview Process
Candidates must be available for a Face-to-Face interview in Bangalore or Mumbai.
Key Responsibilities
- Design and develop scalable, high-performance Java applications.
- Lead a team of engineers and drive technical excellence.
- Architect enterprise-grade solutions and provide technical guidance.
- Collaborate with cross-functional teams to define, design, and deliver high-quality software.
- Review code, mentor team members, and ensure engineering best practices.
- Drive system design discussions and resolve complex technical challenges.
Required Skills
- Strong expertise in Core Java and Java ecosystem.
- Excellent problem-solving and analytical skills.
- Very strong coding ability with clean coding practices.
- Strong understanding of System Design and distributed systems.
- Hands-on experience in Java Architecture and designing scalable applications.
- Experience leading engineering teams and mentoring developers.
- Good understanding of software design principles, design patterns, and performance optimization.
- Strong communication and stakeholder management skills.
Preferred Skills
- Experience with Spring Boot, Microservices, REST APIs, and cloud technologies.
- Exposure to CI/CD, containerization, and modern DevOps practices is an advantage.
Must have
Experience in the Core Java development
Good understanding of Object Oriented Design, Design Patterns and data structure algorithms
Experience in Multi-threading, Hashmaps, Collection arrays
Experience in Java collections
Experience in developing applications using Spring Boot
Proficient in building Micro Services with Java 1.8 or higher, J2EE, Spring, Spring Boot.
Proficient with No SQL and Relational Databases
Hands on experience in Unit testing frameworks like Junit / Mockito OR TDD
Role: Java Backend Lead
Experience: 9.5+ Years
Location: Hyderabad / Bangalore
Notice Period: Immediate to 15 Days
Interview Process: All Rounds Virtual
Mandatory Skills
- Strong hands-on experience in Java
- Spring Boot
- Microservices
- Kafka
- Strong technical/lead experience
Job Description
We are looking for an experienced Java Backend Lead with 9.5+ years of experience in backend application development and technical leadership.
The candidate should have strong expertise in Java, Spring Boot, Microservices, and Kafka, along with experience leading technical teams and delivering scalable backend solutions.
Key Responsibilities
- Design and develop scalable backend applications using Java and Spring Boot.
- Develop and maintain Microservices-based applications.
- Work extensively with Kafka for event-driven applications.
- Provide technical leadership and guide development teams.
- Participate in architecture, design, coding, code reviews, and troubleshooting.
- Collaborate with cross-functional teams to deliver projects successfully.












