Staff Software Engineer – Financial Platform
Employment Information
Report this job
Job expired or something wrong with this job?
Job Description
Staff Software Engineer building Block’s global card-issuing platform for Cash App and other financial brands. Driving network certification, payment reliability, and protocol-level engineering.
Responsibilities:
- Serve as a deep technical expert on global card networks and help Issuing teams interpret specifications, message flows, certification requirements, mandates, and production behavior
- Work directly with card networks to influence requirements, resolve ambiguity, and secure outcomes for Block
- Lead complex, ambiguous engineering problems spanning multiple teams, systems, or domains
- Partner with technical leads, program DRIs, and senior stakeholders to shape solutions where network requirements intersect with Block’s issuing platform
- Write production code, build certification and conformance tooling, analyze network messages, review designs and code, and debug at the protocol and field level
- Drive network certification and mandatory release cycles end to end
- Establish shared frameworks, standards, tooling, and practices
- Provide design guidance, code reviews, mentorship, documentation, and technical judgment
- Apply AI-powered tools throughout the engineering lifecycle and establish effective patterns for broader team use
- Participate in on-call, incident response, and continuous reliability and correctness improvements for critical financial systems
Requirements:
- Minimum of 12 years of related experience with a Bachelor’s degree; or 8 years and a Master’s degree; or a PhD with 5 years experience; or equivalent experience
- Deep, current expertise with at least one major card network, ideally Visa, including direct connectivity, ISO 8583, authorization and clearing flows, stand-in processing, specifications, certification, and mandate cycles
- Personally built, certified, or operated a live direct network connection, not only integrated through a processor
- Experience working directly with card networks to achieve rulings, exceptions, extensions, configuration changes, defect fixes, or certification outcomes
- Strong hands-on software engineering experience building and operating highly reliable financial or payments systems at scale
- Track record of leading technically complex, ambiguous work across team boundaries and influencing technical direction beyond the immediate area of ownership
- Experience creating frameworks, standards, tooling, architecture, or practices adopted by other engineers and teams
- Broad understanding of the card lifecycle, including issuance and fulfillment, provisioning and activation, authorization, ledgering, clearing and settlement, reconciliation, disputes, or fraud
- Working knowledge of Mastercard and American Express
- Fluency with AI-assisted engineering workflows and sound judgment in evaluating and applying AI-generated output
- Willingness to participate in an on-call rotation for critical financial systems
Benefits:
- Remote work
- Medical insurance
- Flexible time off
- Retirement savings plans
- Modern family planning
- Inclusive interview experience with reasonable accommodations for disabled applicants
Similar Jobs
Senior AI Software Engineer
Senior AI Software Engineer building Python, AWS, and GenAI products for Finanzen.net Group’s investment platform. Shipping scalable backend services and AI-powered features for retail and professional investors.
Team Lead Software Engineering
Team Lead Software Engineering leading cloud-based products for Finanzen.net’s investment and trading platform. Combining engineering leadership with architecture, quality, and Neo-Broker product development.
Staff Engineer – DevX
Staff Engineer leading AI-driven developer experience for Buildkite’s engineering team. Improving CI/CD, developer tooling, and agentic coding workflows in a product used worldwide.
Software Engineer, Privacy Engineering
Software Engineer building internal privacy services and infrastructure at Block. Protecting customer data while enabling responsible use across engineering, security, and legal teams.
Senior Software Engineer – Credit Commercial Engineering
Senior Software Engineer building scalable financial-data and payment infrastructure for Marqeta’s embedded finance platform. Designing services, automating releases, and resolving production issues across distributed systems.
Full Stack Engineer
Full Stack Engineer building AI agents and healthcare operations software at 3Y Health. Owning web, mobile, backend, infrastructure, and production workflows end to end.
Lead Engineer, Air
Lead Engineer owning UFORCE’s first Western-facing uncrewed aircraft product. Integrating, testing and industrialising reliable air systems for defence customers.
Principal Software Engineer
Principal Software Engineer architecting Node.js SaaS applications at Precisely, a data integrity and location intelligence company. Leading technical design, stakeholder requirements, and AI-enabled engineering workflows.
Senior Software Engineer, Full Stack
Senior full-stack engineer building AI-powered grant funding infrastructure for grant teams. Owning product development, production AI pipelines, AWS infrastructure, and technical architecture.
Mechanical Technical Lead
Mechanical Technical Lead leading HVAC design for data centers and mission-critical facilities at MEP consulting firm. Owning projects from concept through construction and mentoring engineers.
Senior Software Engineer, iOS
Senior iOS Engineer building scalable, reliable mobile experiences for DraftKings’ regulated gaming platform. Driving Swift architecture, performance, quality, and cross-functional feature delivery.
Software Developer, Java, AWS, Terraform
Software Developer construyendo plataformas digitales de microservicios para la empresa de transformación digital knowmad mood. Desarrollo backend con Java, AWS y Terraform.
Development Architect – Fullstack, Product Mindset
Development Architect construyendo productos digitales fullstack para knowmad mood, compañía de transformación digital. Combinando arquitectura, desarrollo, visión de producto y herramientas de IA.
Development Architect – Fullstack, Product Mindset
Development Architect creando productos digitales fullstack para knowmad mood, compañía española de transformación digital. Diseñando arquitecturas escalables y aplicando IA al desarrollo, testing y automatización.
Principal Engineer, Agentic AI
Principal Engineer architecting agentic AI, LLM workflows, and scalable infrastructure for Steer’s automotive repair CRM platform. Leading data processing, integrations, CI/CD, and full-stack architecture.
Senior Software Engineer – Visualization Services, Graphics
Engenheiro de Software Sênior desenvolvendo serviços AWS de visualização e streaming de modelos 3D. Liderando soluções escaláveis, resilientes e de alta performance.
C++ Software Engineer, P3
Engenheiro C++ desenvolvendo SDKs e tecnologias de streaming para visualização 2D/3D na NetSource. Otimizando performance, integração multiplataforma e processamento de modelos complexos.
Senior Software Engineer
Senior full-stack engineer building AI-powered data, search, and visualization tools for Vannevar’s defense and intelligence customers. Developing mission-critical workflows across TypeScript, React, Node.js, Postgres, and AWS.
Full-Stack Developer Intern
Stagiaire développeur full stack chez OHana Entreprise, société parisienne de logiciels et applications web et mobiles. Développement front-end, back-end, mobile, API, bases de données et CI/CD.
Staff Product Engineer
Staff Product Engineer building Ghost's open source publishing platform. Shipping JavaScript products and leading technical decisions within a distributed remote team.