Technical Advisor

Fiserv•King of Prussia, PA

1d•Onsite

About The Position

Fiserv is a global leader in payments and financial technology, moving money and information in a way that moves the world. The Technical Advisor serves as the primary technical point of contact for clients integrating with our payment gateway API, blending deep technical expertise with consultative problem-solving. This high-impact role is suited for seasoned experts or high-potential Computer Science graduates eager to translate complex business requirements into technical solutions within a fast-evolving fintech landscape.

Requirements

Professional Background: 10+ years of experience in technical integration, solutions engineering, or API-focused support; or a Bachelor’s degree in Computer Science or a related technical field with a strong grasp of software fundamentals.
API & Data Standards: Strong understanding of REST APIs, JSON, webhooks, and authentication models (OAuth, API keys, HMAC).
Programming Competency: Proficiency in at least one modern language (e.g., Java, Python, JavaScript, C#, PHP, Ruby) with the ability to read and interpret code across multiple languages.
Systems Diagnosis: Experience troubleshooting integrations involving HTTP requests, API responses, network issues, and application logs.
Communication Skills: Excellent ability to simplify complex concepts for both technical and non-technical audiences.
Adaptability: Ability to thrive in a fast-paced environment and support emerging features with minimal guidance.

Nice To Haves

Fintech Expertise: Direct experience with global payments, e-commerce, and Card Present (CP) integrations is highly preferred.
Security Knowledge: Familiarity with encryption standards including TLS, PGP, and tokenization.
Enterprise Navigation: Experience managing integrations for enterprise-scale clients with complex organizational hierarchies.
Data & Cloud: Working knowledge of SQL/NoSQL databases, SFTP protocols, and modern cloud infrastructure.
Soft Skills: Strong analytical and critical-thinking abilities with a consultative, client-success mindset.

Responsibilities

Client-Facing Technical Support: Act as the primary technical liaison for clients integrating with our payment gateway API and provide consultative guidance from initial design to production deployment.
Strategic Implementation: Interpret client business requirements and translate them into practical implementation strategies.
API Integration & Troubleshooting: Support clients across multiple programming languages and frameworks, offering hands-on troubleshooting for authentication, transaction flows, and webhook delivery.
Root Cause Analysis: Review client API payloads, logs, and code samples to identify issues and provide actionable solutions.
Technical Expertise & Learning: Maintain deep knowledge of our API specifications, SDKs, and authentication models, adapting quickly to new feature launches.
Product Partnership: Partner with product and engineering teams to relay client feedback, identify usability gaps, and drive platform improvements.
Cross-Functional Collaboration: Support Client Implementations, Solution Engineers, and Product teams while creating integration guides and troubleshooting playbooks.
Engagement: Participate in client calls, technical workshops, and integration reviews.

Benefits

Fuel Your Life program to support your physical, financial, social, and emotional well-being
Paid holidays and generous time away policies
No-cost mental health support through Employee Assistance Programs
Living Proof program to recognize your peers’ extra effort with points redeemable for rewards
Eight Employee Resource Groups to foster a collaborative culture and expand your network
Unparalleled professional growth with training, development, and internal mobility opportunities
Medical, dental, vision, life, and disability insurance options available from day one
Retirement planning and discounted shares with the Employee Stock Purchase Plan
Tuition assistance and reimbursement program
Paid parental, caregiver, and military leave