Senior Full Stack Developer

Position Details:

Title: Senior Full Stack Developer

Location: Mountain View, CA 94043 (Hybrid - 3 days/week onsite)

Duration: 12 Months Contract (Possible extension)

Job Description: Project: Client's Digital Wallet App - Debit/Credit card integration for mobile purchases/payments
Experience Level: Looking for a senior developer
Role Type: Full Stack Developer (Senior, Independent Contributor)
Work Focus: 70% New architecture/system design, 30% coding

Day-to-Day:
•   Development teams are located in Korea, the Philippines, and the USA
•   Business and Product teams are based in New York and Mountain View
•   Collaborate closely with product and business teams
•   Explain architecture decisions and communicate changes and additions to the engineering team Responsibilities:

•   Technical architecture and system design
•   Work with client partners to understand needs, challenges, and propose system recommendations and best practices
•   Cross-team collaboration
•   Engage with product management, business teams, and partner teams
•   Explain architecture and integration strategies clearly (e.g., call center partner meetings, system integration discussions)
Top Skills Required: Java or Kotlin, Spring Boot, Spring, MySQL, PostgreSQL, Cassandra, CouchbaseDB, CI/CD, AWS, Basic knowledge of mobile app development is a strong plus

Note:
•   Either Java or Kotlin is acceptable
•   Either React or Angular is acceptable (team is currently using React)
•   Previous AWS experience and recent Azure experience are both acceptable
•   Experience in banking, financial services, mobile wallets, fintech, or payments is a plus, but not mandatory Interview Process (3 Rounds): Coding, System Design, Behavioral

Summary:
•   The main function of a software engineer is to apply the principles of computer science and mathematical analysis to the design, development, testing, and evaluation of the software and systems that make computers work. A typical software engineer researches, designs, develops and tests operating systems-level software, compilers, and network distribution software for medical, industrial, military, communications, aerospace, business, scientific and general computing applications. Top 3 Skills:
•   Java/kotlin, Spring, SQL Preferred Skills
•   Hands on experience on web frontend technologies - Good to have
•   Hands on experience on mobile application development and Android - Good to have
•   Prior experience in mobile wallets, fintech and payments space - Good to have Required Skills:
•   Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent professional experience.
•   At least 8 years of hands-on experience design, deploying and maintaining large scale production-grade, mobile-first client-backend applications and services with Java and Spring frameworks
•   An expert knowledge of Software Engineering best practices, Software Development Life Cycle including coding standards, code reviews, source control management, build processes, testing, and operations.
•   Experience with microservices architecture and API design.
•   Expertise in developing and consuming RESTful APIs.
•   Deep knowledge on database design and optimization for both relational and non-relational databases such as MySQL, PostgreSQL, Casandra, Couchbase, etc.
•   Expertise on building CI/CD pipelines using Docker, Git, and Jenkins.
•   Proven ability to troubleshoot complex backend issues, optimize system performance, and deliver high-quality, scalable solutions.
•   Familiarity with AWS cloud platforms including deployment, monitoring, and observability.
•   Proficiency in one or more programming languages, such as Java or Kotlin
•   Strong written and verbal communication skills and leadership skills
•   Ability to work independently, thrive in an ambiguity, fast-paced environment and drive continuous delivery
•   Ability to align with global direction from Headquarters but also influence and contribute to it.
•   Ability to navigate international cultures and work across time zones and willingness to work with a remotely located development and design team.
•   Able to travel domestic or internationally, when required, to meet partners, development team or other stakeholders. Position Summary
•   Client is Seeking a Full Stack Engineer to support the development of innovative, next-gen mobile wallet capabilities. In this role, you will be the lead engineer based in the US that closely collaborates with multiple offshore development teams across mobile app & platform, frontend, and backend. You will collaborate cross-functionally with product, program management, and business teams to deliver exciting new features on tight timelines. You will interact with our extensive partners, evaluate new use cases, platforms and integration options as well as manage existing features, root cause issues, identify improvements and help translate these needs to remote development teams. Responsibilities
•   Provide solution architecture recommendations and enablement across applications and services, acting as a trusted advisor to ensure customer success and business scalability.
•   Partner with engineering teams to drive company-wide initiatives and tackle complex technical challenges from design to launch.
•   Work closely with product managers, UX/UI designers, remote client and backend development teams to align on requirements and deliver seamless end-to-end solutions.
•   Analyze existing solutions, identify areas for improvement, and provide actionable suggestions to enhance app performance, stability, and overall user experience.
•   Build reference architecture, frameworks, and toolkits to influence development teams and drive adoption at scale
•   Author and deliver use case and implementation guides for customer and partner reference.
•   Act as a technical advisor to stakeholders and guide decision-making on new technology initiatives.
•   Be the technical liaison for new and existing Client Wallet partners.
•   Assist Client Wallet partners with integrating our solutions, investigate and resolve reported issues, and provide prompt troubleshooting support
•   Find opportunities for product improvements and new solutions during the implementation process. Collaborate with Product and Engineering teams to drive product advancements aligned with customer use cases.
•   Track and present status changes and recommendations to executives and customers based on product state and roadmap working with Product Managers and development teams to help set the right direction.