Senior Software Engineer at OneCard · Pune · 2 - 5 years · ₹10L - ₹15L / yr (ESOP available) · Raised funding · Posted 6 Feb 2023
designers set out to redefine the credit card for you - the consumer. The result is OneCard - a credit card reimagined
for the mobile generation. OneCard is India's best metal credit card built with full-stack tech. It is backed by the
principlesofsimplicity,transparency,andgivingbackcontroltotheuser.
The Engineering Challenge
“Re-imagingcredit andpayments fromFirstPrinciples”
Payments is an interesting engineering challenge in itself with requirements of low latency, transactional guarantees,
security, and high scalability. When we add credit and engagement into the mix, the challenge becomes even more
interesting with underwriting and recommendation algorithms working on large data sets. We have eliminated the
current call center, sales agent, and SMS-based processes with a mobile app that puts thecustomers in complete control.
To stay agile, the entire stack is built on the cloud with moderntechnologies.
Checkoutourappshere:
OneCard(Bestcreditcardapp):www.getonecard.app
OneScore (Over 12 million downloads): www.onescore.app
JD - Sr. Software Engineer - Backend
FPL is hiring an experienced Backend Developer who is passionate about developing apps andloves to work in a fast
paced environment.
Desired Experience
3-5 years with technical hands-on experience in building large-scale B2C applications catering to millions of
users. Previous experience in building scalable products is a must
What you will do
• Be a part of our backend for frontend/ credit card processing engineering teams to build the best home-grown credit card
stack
• Partner with the product teams to understand the product features and specifications, translate them into high level and lowlevel design
• Work with frontend and backend developers to build out a customer-centric experience that will constantly evolve
• Respond to support team tickets as needed to resolve bugs and issues
• Participate in contributing ideas, updates, and product development areas to the team
Technical Expertise
• Strong insight into Java programming language (Class loading, Memory Management, Transactions, Executors, Lambdas
and Streams)
• Experience in distributed technologies, real-time, high throughput and low latency systems
• Hands-on prior experience with scalable Cloud based architectures
• Experience in one or more frameworks like Spring is a plus but not required
• Proficiency in data structures & algorithms
• Strong problem solving and analytical skills
• Any experience in payments is a plus

About OneCard
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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.
Strong Backend Software Engineer Profile with strong Core Java expertise
2
Mandatory (Experience 1): Must have 2+ years of hands-on backend software engineering experience.
3
Mandatory (Experience 2): Must be able to design and implement moderately complex features with minimal supervision, and contribute to system design and architecture discussions.
4
Mandatory (Experience 3): Must be comfortable owning business-critical production components — maintaining connectors, handling customer escalations, security fixes, bug fixes, and building new features end-to-end.
5
Mandatory (Tech skill 1): Must have strong, current Core Java depth with solid, clear coding fundamentals — Java is the primary skill for this role. Deep hands-on core engineering strength matters more than framework knowledge.
6
Mandatory (Tech skill 2): Must have strong core backend engineering fundamentals and experience with scalable systems (connectors handle millions of events/data points daily across customers).
7
Mandatory (Tech skill 3): Must have microservices experience.
8
Mandatory (AI Fluency 1): Must have demonstrated, hands-on use of AI coding assistants (Claude, GitHub Copilot, Cursor, etc.) as a core part of the daily workflow — scaffolding, writing tests, reviewing code, and debugging.
9
Mandatory (AI Fluency 2): Must be able to write precise, effective prompts for production-quality output, decompose tasks so AI assistance is effective, and critically evaluate AI-generated code for correctness, security, and standards before merging.
10
Mandatory (Company): Must come from a product company background (B2B SaaS or B2C both acceptable).
11
Mandatory (Note1): This is a 3-month contract role. Candidate must be comfortable with the contract engagement and able to join immediately (urgent — onboarding within ~a week)
12
Mandatory (Note 2): Must be based in or near Chennai, Bangalore, or Ahmedabad (Chennai: hybrid, Tue & Thu in office)
13
Preferred (Backend): Hands-on Python experience is a plus.
14
Preferred (Database): Hands-on database / JDBC integration experience in a production environment.
Strong Backend Software Engineer Profile with strong Core Java expertise
2
Mandatory (Experience 1): Must have 2+ years of hands-on backend software engineering experience.
3
Mandatory (Experience 2): Must be able to design and implement moderately complex features with minimal supervision, and contribute to system design and architecture discussions.
4
Mandatory (Experience 3): Must be comfortable owning business-critical production components — maintaining connectors, handling customer escalations, security fixes, bug fixes, and building new features end-to-end.
5
Mandatory (Tech skill 1): Must have strong, current Core Java depth with solid, clear coding fundamentals — Java is the primary skill for this role. Deep hands-on core engineering strength matters more than framework knowledge.
6
Mandatory (Tech skill 2): Must have strong core backend engineering fundamentals and experience with scalable systems (connectors handle millions of events/data points daily across customers).
7
Mandatory (Tech skill 3): Must have microservices experience.
8
Mandatory (AI Fluency): Must have demonstrated, hands-on use of AI coding assistants (Claude, GitHub Copilot, Cursor, etc.) as a core part of the daily workflow — scaffolding, writing tests, reviewing code, and debugging — with the ability to write precise, effective prompts for production-quality output, decompose tasks so AI assistance is effective, and critically evaluate AI-generated code for correctness, security, and standards before merging.
9
Mandatory (AI-Native): Must have actually built and deployed AI/LLM-powered features in production (e.g. RAG, LLM-based scoring, AI assistant) — demonstrable AI-native engineering, not merely using AI tools to write code.
10
Mandatory (Database): Hands-on database / JDBC integration experience in a production environment.
11
Mandatory (Company): Must come from a product company background (B2B SaaS or B2C both acceptable).
12
Mandatory (Note1): This is a 3-month contract role. Candidate must be comfortable with the contract engagement and able to join immediately (urgent — onboarding within ~a week)
13
Mandatory (Note 2): Must be based in or near Chennai, Bangalore, or Ahmedabad (Chennai: hybrid, Tue & Thu in office)
14
Preferred (Backend): Hands-on Python experience is a plus.
Position Title: Software Engineer
Position Type: Full Time
Department: Research and Development
Reports to: First Level Manager, Indian Development Centre.
Company Background:
Affiliated with US Group companies, CGLIA Solutions LLP is an innovative Software Product Development Organization developing high available, highly secure, cloud-based enterprise software products catering to the needs of Large Research facilities, University medical centres, Hospitals, Pharma companies in US and worldwide ultimately leading to the development of life saving medications.
CGLIA is known for helping Software professionals to unleash their creativity, turning them into world class professionals, and building their career.
Job Summary:
As a Software Engineer, you assist in the design development of new products for our renowned customers worldwide.
Enhancing the existing applications by identifying the areas of improvements, making recommendations and designing and implementing them.
Ideal candidate should be a self-starter and, should have excellent problem-solving skills and passionate about developing high quality innovative products exceeding the customer expectations and needs. A keen interest for quality at every stage of development is a must.
Looking for a highly motivated individual who is looking to grow their career in a challenging environment.
Responsibilities:
- Participating in discussion with Product Management teams and Generating the Requirement Specification document that has covers both the functional and Non-functional requirements.
- Participating in discussion with the technical teams and generating the design documents.
- Develop code and update the existing code, ensuring that all the code meets the agreed upon requirements.
- Perform intensive testing of all new and existing programs to ensure they are free of errors and function as intended
- Work closely with the cross functional teams like UI Developers, Business Analysts and Management teams.
- Cultivate an environment of collaboration, commitment, accountability, and creativity and deliver products and services on time with quality delight the customer.
- Actively participating in the hiring process, for Organization growth.
- Updates job knowledge by studying latest development tools, programming techniques, and participating in professional organizations.
- Willing to undertake additional tasks and responsibilities as may be reasonably expected of the role and as necessary in order to achieve the objectives of the organization.
Qualifications: (Education, Experience, Skills and Knowledge)
· Bachelor’s Degree in Computer Science or Information Technology or any equivalent degree.
· At least 4 plus years of hands on experience in developing cloud-based software.
· Expertise in developing cloud based distributed applications and must have experience in object-oriented design.
· Strong hands on experience in using Java, Hibernate, Spring technology stack (Spring MVC, Spring Data, Spring Cloud, Spring Batch, Spring security etc.) along with open source technologies.
- Experience building web and mobile applications using frontend technologies Angular (Angular 1/Angular 2), Bootstrap, Material Design, UX/UI, JavaScript, HTML5, and CSS.
· Experience on any one of databases like MySQL, MS SQL, PostgreSQL, and Oracle.
· Exposure with more than one of the Software Development Methodologies.
· Knowledge on the Code Static Analyzer tools like SonarQube, PMD etc. and, DevOps Tools.
· Expertise in Security related to Web Applications and mobile applications. and other open source and commercial tools.
· Ability to work independently and along with teams.
· Impeccable written English skills, and Oral communication skills along with outstanding interpersonal skills.
· Eagerness and willingness to learn new technologies.






