Full-Time
Senior Software Development Engineer Backend
Posted on 10/31/2025
Zeta
1,001-5,000 employees
Cloud-native payment card issuer platform
No salary listed
Bengaluru, Karnataka, India
In Person
 Software Engineering (1) |
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- Understanding of Java and worked with Java 8 and microservices architecture.
- Understanding of HTTP protocol.
- Worked with Spring Boot - writing REST API.
- Worked with Relational database system - PostgreSQL.
- Basic understanding of Linux and scripting.
- Good writing and communication skills.
- 5-6 years of experience
- Should have hands-on development experience with Object Oriented Programming (Java is highly preferred) on a large scale system
- Building a highly-scalable and secure payments platform.
- Discuss solutions with customers and ensure customer delivery.
- Primary owners of one or more components of the platform and will drive innovation in your area of ownership.
- Working with some of the smartest people in the industry and will have ample opportunity to learn and grow.
- Using cutting-edge cryptography to secure payments beyond industry standards.
- Deriving actionable insights by mining TBs of data.
- Building low-level infrastructure that aims to push the boundaries of network performance.
- Participating actively in the recruitment and nurturing of engineers as awesome as you.
Zeta provides cloud-native, API-connected payment card issuer processing platforms for banks, financial institutions, and fintechs. Its core product, Omni Stack, lets clients launch and manage digital credit, debit, and prepaid card programs through integrated APIs and cloud services. Transactions and card program management are handled via the platform, often with managed services and partner integrations (e.g., Sparrow) to offer comprehensive payment solutions. The company differentiates itself with a fully cloud-native, API-first approach combined with strong regulatory compliance (ISO IEC 27001, PCI DSS 4.0, SOC 2 Type 2), enabling rapid deployment and secure operation of embedded banking and payments. Zeta’s goal is to accelerate the world toward invisible payments by rethinking payment systems from core to edge.
Company Size
1,001-5,000
Company Stage
Late Stage VC
Total Funding
$430M
Headquarters
San Francisco, California
Founded
2015
Simplify's Take
What believers are saying
- Raised $50M from Optum in 2025, boosting valuation to $2B from $1.15B.
- Serves 25M accounts, plans 25M more, with $50M+ annual revenue.
- Digital Credit as a Service launched 2024 processes 2M daily UPI transactions.
What critics are saying
- Optum builds competing card processing, poaches Zeta customers within 12-24 months.
- Mastercard integrates issuer processing, bypasses Zeta for issuers in 18-36 months.
- Profitability target missed by March 2026, collapses investor confidence immediately.
What makes Zeta unique
- Zeta's Omni Stack enables rapid launch of compliant digital cards and loans.
- Tachyon platform powers Sparrow's top-rated credit card for underserved since October 2023.
- Cloud-native API stack supports issuing, fraud, and digital banking apps globally.
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Benefits
Professional Development Budget
Growth & Insights and Company News
6 month growth
↑ 0%1 year growth
↑ 1%2 year growth
↓ -2%Zeta, an Indian fintech firm, has raised $50 million from Optum, boosting its valuation to $2 billion, up from $1.15 billion in 2021 when it received $250 million from SoftBank Vision Fund 2. Founded in 2015, Zeta aids banks and fintechs in modernizing services with cloud tech. It serves 25 million accounts, plans to add 25 million more, and aims for profitability by March 2026. The US is its largest market, followed by India, generating over $50 million annually.
Acorns has acquired Zeta, a financial planning platform for couples and families, to enhance its financial wellness offerings across various life stages. This acquisition, which includes Zeta co-founders Kevin Hopkins and Aditi Shekar joining Acorns, marks the company's fifth strategic acquisition in under two years. Existing Zeta customers will gain access to Acorns' financial wellness benefits. Financial terms were not disclosed.
Zeta, a provider of banking software to banks and fintech startups, has raised $50 million from a strategic investor at a $2 billion valuation. The new Zeta, a provider of banking software to banks and fintech startups, has raised $50 million from a strategic investor at a $2 billion valuation.
Zeta, a modern banking tech company, has raised $50 million from an undisclosed strategic investor, valuing the company at $2 billion. Zeta became a unicorn in May 2021 with a $250 million Series C round from SoftBank Vision Fund 2. The company also received $30 million from Mastercard in March 2022 at a $1.5 billion valuation. Zeta's Indian entity reported a 9.42% revenue increase to ₹893.12 crore in FY24, with PAT rising 5.4x to ₹119.82 crore.
SAN FRANCISCO--(BUSINESS WIRE)--Zeta, a leading provider of next-gen card processing solutions to banks and credit unions, is proud to announce its partnership with Sparrow Financial to power the most modern credit card program in existence for non-prime customers.Sparrow is founded by industry veterans - Evan Feldman and Lisa Sturm - who have spent 30+ years building and managing large-scale credit card portfolios. They embarked on a quest for a modern card processing solution to launch a differentiated card program for underserved Americans. After meticulous evaluation of various card processors, they chose Zeta's Tachyon platform.Evan Feldman, Co-CEO of Sparrow Financial, said: “Sparrow has built the #1 credit card experience for the underserved in every respect, from a seamless application journey and instantaneous underwriting, a user-friendly mobile app, cutting-edge virtual card experience, a hassle-free repayment process, and an operations center that puts the customer first. This achievement has been made possible through the next-gen capabilities and integrated stack of Zeta.”The Sparrow credit card went live in October 2023, leveraging Zeta for card processing, mobile app, servicing, and advanced data & analytics capabilities. And, in under 6 months of launch, it has received glowing reviews for its intuitive and modern experience from customers with consistently high ratings on Credit Karma and mobile app stores, such as:Great card, easy to use app | ⭐⭐⭐⭐⭐“The virtual card is available right away on the app, which was super convenient. Overall the app is really easy to use, especially compared to some of my other cards.”| ⭐⭐⭐⭐⭐ “The virtual card is available right away on the app, which was super convenient