Senior Associate Java Developer

Posted 2 Days Ago
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Mumbai, Maharashtra, IND
In-Office
Senior level
Fintech • Payments • Financial Services
The Role
Develop Java-based smart card and secure payment applications, SDKs, APIs, libraries, and developer tools. Build and validate Java Card applets compliant with EMV, GlobalPlatform, and ISO standards; manage applet lifecycles, cryptographic operations, key management, and secure element interactions. Debug card-host transaction flows, support personalization and certification, resolve production issues, and maintain technical documentation. Collaborate with host system, manufacturing, certification, and cross-functional engineering teams.
Summary Generated by Built In
Key Responsibilities:
• Design and develop Java-based applications, SDKs, libraries, and developer tools for smart card and secure payment platforms.
• Build APIs and frameworks for interaction with Secure Elements, Java Cards, and mobile wallets.
• Develop sample applications, reference implementations, and technical documentation for SDK consumers.
• Implement EMV, GlobalPlatform, and ISO 7816/14443 compliant applications.
• Develop secure and optimized code considering memory and performance constraints.
• Perform applet debugging, testing, and validation using industry-standard tools.
• Manage applet lifecycle (installation, personalization, deletion) using GlobalPlatform.
• Work on secure key management, cryptographic operations, and data protection.
• Collaborate with cross-functional teams including host system, personalization, and certification teams.
• Analyse and resolve issues in card-host interaction and transaction flows.
• Maintain technical documentation and support production deployments.

Skills:
• 5+ years’ experience in software development and qualification of Java Card Payment Application
• Prior Experience to developed payment card applet with any SCHEME
• In depth knowledge of EMV standard and global platform standard.
• Programming experience in Java or Python
• Experience developing SDKs, APIs, libraries, or developer tools.
• Experience with card personalization tools like MULTOS, GPPro, Gemalto IDV or similar.
• Should possesses the functional knowledge of ISO 14443 / 7816 / 8583 / 9564. Experience with debugging tools like PyAPDU, GPShell, or JCOP tools.
• Strong knowledge of chip manufacturing industry is needed.
• Strong understanding of EMV standards, cryptographic algorithms (AES, RSA, ECC, PQC).
• Familiarity with HSM and secure element programming.
• Experience in card manufacturing industry.
• Experience in PKI and Certificate Management
• Collaborate with teams on certification processes (EMVCo, PCI DSS, etc.)
• Good to have EMV certifications. Soft Skills
• Strong problem-solving and analytical skills
• Ability to work independently and in a team
• Good communication and documentation skills
• Attention to detail with a focus on security

Requirements

Preferred Qualifications:
• Bachelor’s or master’s degree in computer science or in a related field.
• 5 years of relevant experience is must.
• Previous experience in payment networks requirements likes (Visa, Mastercard, Rupay, etc.) is
a plus.

Skills Required

  • 5+ years of experience in software development and qualification of Java Card payment applications
  • Previous experience developing payment card applets for a payment scheme
  • In-depth knowledge of EMV and GlobalPlatform standards
  • Programming experience in Java or Python
  • Experience developing SDKs, APIs, libraries, or developer tools
  • Experience with card personalization tools such as MULTOS, GPPro, Gemalto IDV, or similar
  • Functional knowledge of ISO 14443, ISO 7816, ISO 8583, and ISO 9564
  • Experience with debugging tools such as PyAPDU, GPShell, or JCOP tools
  • Strong knowledge of the chip manufacturing industry
  • Knowledge of EMV standards and cryptographic algorithms including AES, RSA, ECC, and PQC
  • Familiarity with HSM and secure element programming
  • Experience in the card manufacturing industry
  • Experience with PKI and certificate management
  • Experience collaborating on EMVCo and PCI DSS certification processes
  • Strong problem-solving and analytical skills
  • Ability to work independently and collaboratively
  • Good communication and documentation skills
  • Attention to detail with a focus on security
  • Bachelor's or master's degree in computer science or a related field
  • Previous experience with Visa, Mastercard, RuPay, or other payment network requirements
  • EMV certifications
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The Company
HQ: Mumbai, Maharashtra
2,124 Employees
Year Founded: 2005

What We Do

NPCI is an umbrella organisation for all retail payment systems in India. It was set up with the support & guidance from Reserve Bank of India (RBI) & Indian Banks Association (IBA). A registered company under Section 8 of the Companies Act, 2013. Watch the NPCI Corporate AV - https://youtu.be/RGl9YQ6CB20 Products & Services Unified Payments Interface Unique payment solution which empowers a recipient to initiate the payment request from a smartphone. It facilitates 'virtual payment address'​ as a payment identifier for sending & collecting money & works on single click 2 factor authentication. Immediate Payment Service A 24X7, real time, cost effective, independent channel, retail payment service, introduced by NPCI, empowering customers to transfer money instantly with banks & RBI authorised PPIs across India. RuPay Robust card scheme designed to offer payment products with superior features & processes specifically designed to cater to diverse consumer needs. *99# USSD based mobile banking platform that makes banking services accessible to all the bank account holders on their mobile phones. National Automated Clearing House Centralised payment system developed with an aim to consolidate multiple ECS systems running across the country & provide a framework for the removal of local barriers/inhibitors. Aadhaar Enabled Payment System Bank led model which allows online financial inclusion transactions at micro-ATMs through the business correspondent of any bank using the Aadhaar authentication. e-KYC Electronic way of conducting authentic & real time KYC of a customer using Aadhaar authentication. Cheque Truncation System Electronic image of the cheque is transmitted to the drawee bank by the clearing house, along with relevant information. National Financial Switch Facilitates routing of ATM transactions through inter-connectivity between its member institutions thereby enabling the citizens of the country to utilise any ATM of a connected entity

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