Senior Software Engineer, Backend

zipcolimited; EE. UU.; A distancia; USD 150.000 - 175.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Remote-first for US-based employees

In-person option in Manhattan

Descripción de la vacante

zipcolimited is seeking a senior backend engineer to design and build the core systems powering card issuing, transactions, and settlement at scale. You will own complex financial workflows and influence architectural direction while applying AI-assisted development across the lifecycle.

The role is remote-first for US-based employees with an option to work from our Manhattan office. You will collaborate with Product, Engineering, and Infrastructure teams to deliver reliable, secure, and

Formación

• Bachelor's degree or equivalent practical experience.
• 10+ years of software engineering in production systems.
• Deep hands-on with .NET/C#, Azure, and distributed backends.
• Experience with Domain-Driven Design, CQRS, event-driven architectures.
• Background in payment infrastructure or card issuing platforms.

Responsabilidades

• Build and evolve card issuing, transaction processing, and settlement systems at scale.
• Design reliable integrations with payment platforms and banking partners.
• Own end-to-end technical initiatives balancing customer experience and reliability.
• Contribute to architecture of event-driven backend systems (C#, .NET, Azure, DDD, CQRS).
• Improve reliability, observability, and production incident response.
• Collaborate with Product, Engineering, and Infrastructure teams on tradeoffs.
• Mentor engineers via pairing, code reviews, and technical guidance using AI-assisted development.

Conocimientos

Backend design

C#/.NET

Azure

Distributed systems

Event-driven architecture

Educación

Bachelor's degree in Computer Science or related field

Herramientas

Stripe Issuing

Descripción del empleo

Role overview

A senior engineering role focused on designing and building the backend systems that power card issuing, transaction processing, and settlement at scale. The position emphasizes hands-on technical ownership of complex financial workflows, meaningful contribution to architectural direction, and the practical application of AI-assisted development across the software lifecycle. The role is remote-first for US-based employees, with the option to work in person from a Manhattan office.

Responsibilities

• Build and evolve scalable card issuing, transaction processing, and settlement systems that support high-volume customer experiences.
• Design reliable integrations with payment platforms and banking partners, ensuring transactions move securely and accurately at scale.
• Own complex technical initiatives end-to-end, making thoughtful tradeoffs across customer experience, reliability, security, and delivery speed.
• Contribute to the architecture of event-driven, distributed backend systems built on .NET, C#, Azure, Domain-Driven Design, and CQRS.
• Strengthen reliability, observability, and performance of production systems, including monitoring and incident response practices.
• Partner with Product, Engineering, and Infrastructure teams to navigate technical tradeoffs and deliver against customer and business outcomes.
• Apply AI-assisted development throughout the software lifecycle and mentor engineers through pairing, code reviews, and technical guidance.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field, or equivalent practical experience.
• 10 or more years of software engineering experience designing, building, testing, and maintaining complex production systems.
• Deep hands-on experience with .NET/C#, Azure Cloud Services, and distributed backend systems.
• Experience designing systems using Domain-Driven Design, CQRS, and event-driven architectures.
• Background building payment infrastructure, card issuing, or transaction processing systems, including platforms such as Stripe Issuing or comparable in-house solutions.
• Strong understanding of reliability, observability, automated testing, system performance, and production incident management.
• Experience navigating the security, compliance, and operational considerations of mission-critical financial systems.

Nice to have

• A graduate degree in a related technical field.

Benefits and work setup

• Annual base pay range of $150,000 to $175,000, with potential additional bonus, commission, and a full benefits package; final compensation varies by location, experience, and other factors.
• Remote-first arrangement for US-based employees, with optional in-person collaboration from a Manhattan office.
• Visa sponsorship is not available for this position.