Senior Product Engineer

About the role

Parafin builds financial tools for small businesses via integrations with partner platforms such as DoorDash, Amazon, Worldpay, and Mindbody. The role owns end-to-end delivery of user-facing products across interfaces, APIs, and services in collaboration with partners.

Software engineers turn product ideas into working code. Engineers work in small teams, review each other's work, and ship in small batches. Most teams follow agile practices such as sprints and daily standups. Engineers also write tests, fix bugs, and improve performance. The field values clear communication as much as technical skill. Engineers spend part of every week on planning, code review, and debugging, not just writing new code. The ability to explain a technical decision in plain words separates strong engineers from the rest.

Key facts

What you'll do

Production-quality user interfaces in React are crafted to deliver polished experiences, and APIs, data models, and backend services are owned to support reliability, performance, and responsiveness. Strong product context is developed to shape roadmaps and improve user experience, working with Product and Design rather than only executing on specifications. Sound technical decisions for architecture and design are contributed, with tradeoffs aligned through design reviews and collaboration with engineering peers. Code quality, systems, and team processes are improved, while engineers are mentored and a culture of craft and ownership is fostered.

Requirements

Five or more years of experience building and shipping user-facing products is required, with experience owning projects from scoping through execution and driving them to completion. The ability to work deeply across the stack is needed, including producing production-quality UIs in React, building APIs and databases, working with data stores, and debugging distributed systems. Edge cases in incomplete data or unexpected user behavior are analyzed to evaluate user experience quality and define appropriate responses. Software construction approaches, abstractions, architecture, and patterns are defined to simplify product development and long-term maintenance. Effective cross-functional collaboration with Engineering, Product, and Design drives projects forward, aligns on tradeoffs, and delivers high-quality outcomes.

Practical notes

Workplace is hybrid, and employment is full-time. Typical interview steps

Hiring for engineering roles usually starts with a recruiter screen, followed by one or two technical rounds. Candidates often solve a coding problem, discuss past projects, and answer system design questions. Some loops include a take-home task. Final rounds typically cover team fit and give candidates a chance to ask questions. Interviewers look for how you break down an unfamiliar problem, not just whether you reach the answer. Practicing a few problems aloud and reviewing your own past projects are the best preparation.

Good to know

Product engineering roles commonly involve cross-functional collaboration across design, product, and engineering. Strong frontend and backend skills help deliver reliable user-facing features. Clear communication of tradeoffs supports roadmap decisions and architecture. Mentoring raises team capability and code quality over time. Consistent patterns reduce maintenance burden across products.

Questions to ask

Worth asking in any interview: how the team measures success, who the role works with daily, what the onboarding looks like, and what the company is trying to achieve this year. Asking what past hires did well is a strong final question. Keep the list short and pick the questions that matter most to you.

Career growth

Engineering careers usually progress from individual contributor to senior, staff, and principal levels. Some engineers move into management and lead teams of five to twenty people. Others stay on the technical track. Growth follows demonstrated impact, not tenure alone. A typical engineering ladder has clear levels with defined expectations for scope, quality, and mentorship. Moving up usually requires owning outcomes end to end rather than completing assigned tickets.