Technical Lead/Staff Software Engineer (FTE – no C2C) – California

Overview

CITIZENSHIP: Must be US Citizen or Legal/Permanent Resident Green Card (no C2C)

TITLE: Technical Lead/Staff Software Engineer – Payments (Credit Card Lead Developer)

LOCATION(S): New York, NY 10017 or Southlake, TX 76092 or California (open for discussion)

IN OFFICE POLICY IF LOCAL TO NY or TX location: If local, 4 days a week onsite. If not local, arrangements for 2-3 days a week in office, or possibly remote for a perfect candidate.

SALARY RANGES: $200-$280K DOE

CITIZENSHIP: Must be US Citizen or Legal/Permanent Resident Green Card (no C2C)

HIERARCHY/REPORT TO: Director of Engineering and Partner

SIZES OF STAFF TO MANAGE: none at first, but proven experience mentoring and building a development team

SIZES OF TEAMS: TBD

EDUCATION/ DEGREES/ CERTIFICATIONS REQUIRED: Bachelors+

INDUSTRY: Fintech, Banking, Financial Services Platforms, Start-ups

PRIVATE COMPANY

# of EMPLOYEES: <200 and growing

REQUIREMENTS:

• Hands-on, in-the-weeds/ day-to-day technical leadership (experience reading code, mentoring and building development teams). Great if still a coder. Most of the applicants have been too far removed from the day-to-day technical, too managerial and from too large of environments.
• 5+ years backend engineering experience (production systems) 

• Background in fintech, banking, or financial services platforms. 

• Strong expertise in .NET / C# 

• Strong hands-on expertise in Azure SQL 

• Deep experience running systems in Microsoft Azure (production environment) 

• Proven ability to work in a product-driven environment and deliver outcomes (not just code)

• Demonstrated AI-first mindset (automation, AI-assisted workflows, LLM integration exposure is a plus)

• Strong fundamentals in: 
  • Distributed systems
  • Microservices architecture
  • API design
  • Transactional data systems
  • System design and data modeling

Preferred 

• Front-end development experience with Angular expertise 

• Experience with payments (Domestic, Cross border payments), credit card issuance, or virtual card Payment. 

• Familiarity with PCI DSS concepts, tokenization, and payment security practices. 

• Experience supporting high-volume, financial transaction systems. 

• Experience with event-driven systems, queues/pub-sub 

 

Standard Application questions – Part 1

• Legal name and if you have a preferred or nickname:
• Linked In:
• Best contact info (Email, cell):
• Citizenship:
• Availability:
• Where you live: (City, St, Zip)
• Willing to work 100% onsite, hybrid or remote:
• Willing to relocate if necessary:
• City, State, Zip and desired geographical work locations:
• Active passport and willing to travel if necessary
• Hourly/salary history and expectations:
• Sizes of Staff overseen:
• Budgetary Responsibility:
• Hierarchy/Report to:
• Education/Degrees/Active Certs:

JOB SCREENING QUESTIONS – Part 2

Need these answered next to each question please. It’s how we present to the client and there is a lot of competition.

JOB SCREENING QUESTIONS – elaborate as needed. The focus is hands-on technical strength, expertise in payments and a great leader to eventually build teams.

• How many years of experience and how recent is your hands-on experience as a leader with deep expertise in .NET/C# and Microsoft Azure designing and owning backend architecture (scalability, reliability, security)?
  • Feel free to elaborate on leadership accomplishments and current, hands-on, in-the-weeds technical skills:
• How many teams have you mentored and built? When, where, and what were the teams?
• Start Up experience: When and where, and what was your role?
• Front-end development experience with Angular expertise? When and where, and what was your role?
• Expert level experience with payments (Domestic, Cross border payments), credit card issuance, or virtual card payment? When and where, and what was your role?
• Familiarity with PCI DSS concepts, tokenization, and payment security practices?  When and where, and what was your role?
• Experience supporting high-volume, financial transaction systems?  When and where, and what was your role?
• Experience with event-driven systems, queues/pub-sub?  When and where, and what was your role?

 

Role Summary

This role is a hands-on technical lead position requiring deep expertise in .NET and Microsoft Azure. The engineer is expected to design, implement, review, and deliver core backend services that must be robust, secure, and scalable. 

We’re looking for a Staff Software Engineer to lead the design and delivery of payment rails across:

• Bank Integrations (ACH, Wire, RTP, check services, cross-border payments and balance/transaction reporting)

• Virtual Card Payments (STP /single-use / multi-use, authorization/ capture/ clearing/ settlement flows)

• T&E Cards (corporate card programs, card controls, near-real-time expense signals)

 

The role carries technical ownership and decision-making responsibility for system architecture, reliability, and performance.
The primary requirement is the ability to build and scale complex backend systems, apply strong cloud and security fundamentals, and take end-to-end responsibility for production-quality engineering outcomes.  

This role sits at the intersection of core engineering, security, fintech integration, and product execution.

Key Outcomes (What this role delivers) 

• Scalable, fault-tolerant backend services built in .NET 

• Cloud-native production systems on Azure with strong observability 

• Payment and transactional workflows that are idempotent, auditable, and correct 

• Improved platform reliability, performance, and long-term scalability 

• Higher engineering standards through strong reviews, mentorship, and architecture leadership  

Core Responsibilities 

• Set technical directions, lead code/design reviews, mentor engineers, and build core services
• Design and own backend architecture (scalability, reliability, security, cost trade-offs)
• Collaborate with the product team to define and own the product roadmap

• Build, review, and deliver production-grade .NET services end-to-end 

• Operate services in Azure with high operational maturity (logging, metrics, alerts, incident response) 

• Identify and resolve bottlenecks and failure modes proactively 

• Ensure correctness of transactional and financial data; apply secure coding practices 

• Lead code/design reviews and mentor engineers; raise overall backend capability 

•  Collaborate with onboarding and support teams to make sure the product meets delivery and support standards

What You Need

• • Track record of shipping scalable high-quality products and features
  • 5+ years of experience in architecting and building distributed systems using .Net/C# and Azure cloud
  • Solid engineering craft: automated testing, code reviews, CI/CD, and observability.
  • Desire to work in a fast-paced environment

• Nice to Have:

• • Payment domain experience

Required Qualifications 

• 5+ years backend engineering experience (production systems) 

• Background in fintech, banking, or financial services platforms. 

• Strong expertise in .NET / C# 

• Strong hands-on expertise in Azure SQL 

• Deep experience running systems in Microsoft Azure (production environment) 

• Proven ability to work in a product-driven environment and deliver outcomes (not just code) 

• Demonstrated AI-first mindset (automation, AI-assisted workflows, LLM integration exposure is a plus) 

• Strong fundamentals in: 

Distributed systems 

Microservices architecture 

API design 

Transactional data systems 

System design and data modeling 

 

Preferred 

• Front-end development experience with Angular expertise 

• Experience with payments (Domestic, Cross border payments), credit card issuance, or virtual card Payment. 

• Familiarity with PCI DSS concepts, tokenization, and payment security practices. 

• Experience supporting high-volume, financial transaction systems. 

• Experience with event-driven systems, queues/pub-sub 

Connect with us on Linked In: www.LinkedIn.com/in/DianeKrehbiel 

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