Senior Software Engineer - Growth Infrastructure

Up Closets of Charleston; New York (NY); Remote; USD 200,000 - 251,000; Full time

Job summary

Join a forward-thinking company as a Senior Software Engineer in Growth Infrastructure, where you'll play a pivotal role in scaling a revolutionary public API. This role offers the chance to enhance partner integrations, optimize performance, and drive user acquisition through innovative API solutions. Collaborate with cross-functional teams to shape the future of financial services and unlock new growth opportunities. If you're passionate about API development and thrive in a dynamic environment, this is the perfect opportunity to make a significant impact.

Qualifications

• 6+ years of software development experience with a passion for APIs.
• Strong product thinking and experience in system design and architecture.

Responsibilities

• Develop a public-facing API to drive adoption and scale Mercury’s reach.
• Design and implement API security measures for safe integrations.

Skills

Software Development

API Design

Haskell

System Design

API Security

Cross-functional Collaboration

Product Thinking

Job description

Senior Software Engineer - Growth Infrastructure

San Francisco, CA, New York, NY, Portland, OR, or Remote within Canada or United States

Growth Infrastructure at Mercury plays a crucial role in scaling our product. Our public API initiative is our next navigational chart—an infrastructure that enables businesses to integrate Mercury into other ecosystems, unlocking massive new growth opportunities.

As a member of the Growth Infrastructure team, you will be at the forefront of Mercury’s expansion, developing a public-facing API that drives adoption, increases activation, and scales Mercury’s reach.

As part of this role, you will:

• Grow Mercury’s Public API to enable seamless partner integration, making Mercury’s financial services more accessible across diverse ecosystems.
• Expand and refine our public endpoints to drive distribution and scale Mercury’s presence in partner products, accelerating new customer acquisition.
• Design and implement API security measures including authentication, authorization, and compliance to ensure safe and scalable integrations.
• Optimize performance and scalability to handle high-throughput traffic and provide a seamless experience for partners embedding Mercury.
• Develop and maintain versioning strategies to ensure stability and backward compatibility while quickly iterating on features.
• Unlock new partnership opportunities by refining tools and levers that remove friction in integrations, enhancing adoption, and driving growth.

The ideal candidate for this role:

• Has 6+ years of software development experience, with a knowledge of or excitement to learn Haskell.
• Is highly autonomous and thrives in a fast-moving environment, capable of making impactful product and technical decisions.
• Is passionate about APIs and understands how to design and maintain robust, developer-friendly interfaces that drive adoption and engagement.
• Has strong product thinking—you should be excited about working on growth-related challenges and be comfortable prioritizing impactful work that increases user acquisition.
• Has experience with system design and architecture, with a track record of making tradeoff decisions and measuring their impact over time.
• Has expertise in API security and understands best practices for protecting sensitive data.
• Enjoys cross-functional collaboration, working closely with stakeholders across product and sales to align API development with Mercury’s growth strategy.
• Is comfortable navigating ambiguity, iterating quickly, and focusing on the highest-leverage opportunities to scale Mercury’s distribution through API partnerships.

The total rewards package at Mercury includes base salary, equity (stock options), and benefits. Our target new hire base salary ranges for this role are the following:

• US employees (any location): $200,700-250,900 USD
• Canadian employees (any location): CAD 189,700 - 237,100

Mercury values diversity & belonging and is proud to be an Equal Employment Opportunity employer. All individuals seeking employment at Mercury are considered without regard to race, color, religion, national origin, age, sex, marital status, ancestry, physical or mental disability, veteran status, gender identity, sexual orientation, or any other legally protected characteristic.

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