The Sr. Full Stack Developer will design and implement backend services, develop frontend features, maintain APIs, and support production systems for a large-scale debit card platform.
102269 - Sr. Full Stack DeveloperSummary
We are seeking a Senior Full Stack Developer (contract) to drive the evolution and scalability of a large-scale debit card platform within Consumer Financial Services. This hands-on role offers the opportunity to work on mission-critical, high-availability systems that support significant transaction volume and customer impact.
The role requires strong backend and frontend expertise across Java, NodeJS, ReactJS and Oracle, and involves building reliable APIs and services that enable core debit card functionality. This is a 6+ month engagement on a high-visibility client team focused on performance, reliability, and scalable design.
Responsibilities- Design and implement scalable backend services for the debit card platform using Java and NodeJS
- Develop and maintain frontend features and user interfaces with ReactJS
- Build, document, and maintain RESTful APIs and GraphQL endpoints as needed
- Write high-quality, testable code and contribute to unit, integration, and non-functional testing
- Participate in architecture and design discussions to improve system scalability and availability
- Collaborate with product and cross-functional teams to deliver features on schedule
- Troubleshoot and support production systems as part of an on-call/rotation model
- Optimize SQL queries and data access patterns against Oracle databases
- 7+ years of hands-on software development experience
- Strong backend development experience in Java
- Strong experience with NodeJS
- Solid frontend experience with ReactJS
- Strong SQL skills; Oracle experience preferred
- Experience building and maintaining RESTful APIs
- Experience working in distributed, scalable production environments
- Proven experience working on large-scale, high-availability systems
- Strong ownership mindset and ability to work independently
- Comfortable working in fast-paced, agile environments with strong communication skills
- Experience with GraphQL
- Experience with messaging platforms such as Kafka
- Prior experience in financial services or other high-availability transaction systems
- Experience with Service-Oriented Architecture (SOA)
Top Skills
GraphQL
Java
Kafka
Node.js
Oracle
React
Restful Apis
SQL
Similar Jobs
Artificial Intelligence • Consumer Web • Digital Media • Machine Learning • Software
As a Senior Full Stack Engineer at Quora, you'll design and implement developer APIs, collaborate with cross-functional teams, and enhance the developer experience on the Poe platform.
Top Skills:
C++GraphQLJavaPythonReactTypescript
Blockchain • Fintech • Payments • Consulting • Cryptocurrency • Cybersecurity • Quantum Computing
The Consultant, Customer Success will engage with customers on Mastercard products, deliver training sessions, analyze data, and ensure project success, fostering strong relationships for strategic growth.
Top Skills:
ExcelPower BIPowerPointSaaSTableauWord
14 Hours Ago
Big Data • Food • Hardware • Machine Learning • Retail • Automation • Manufacturing
This role involves managing risk assessments for third parties and internal technologies, performing compliance activities, and maintaining risk and control registers.
Top Skills:
ArcherCisGrc ToolsNist
What you need to know about the London Tech Scene
London isn't just a hub for established businesses; it's also a nursery for innovation. Boasting one of the most recognized fintech ecosystems in Europe, attracting billions in investments each year, London's success has made it a go-to destination for startups looking to make their mark. Top U.K. companies like Hoptin, Moneybox and Marshmallow have already made the city their base — yet fintech is just the beginning. From healthtech to renewable energy to cybersecurity and beyond, the city's startups are breaking new ground across a range of industries.
