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Check out our Senior Product Engineer, Frontend job description and find the application below.

Senior Product Engineer, Frontend

Posting Open: May 13, 2026

Hiring goal: By June 2026 with a start date in June/July 2026

Applications will be reviewed as they are submitted, and the position may remain open until filled: Apply here.

The interview process may include: CEO Interview, CTO Interview on sideby, Authentic Task, Reference Check, Team Interview, Background Check

Although this role is remote, we are currently only considering candidates located in and authorized to work in the United States.

Job Description

As an early team member and core contributor, the Senior Product Engineer, Frontend helps define how sideby builds user-facing products from rapid prototyping to production-ready workflows to the feedback loops that drive iteration. You care about clarity, speed, and craft in the user experience, AND you’re excited to simplify complex, AI-enabled learning interactions into flows that feel intuitive, trustworthy, and genuinely useful. We have a weekly tech sprint planning and execution rhythm with strategic collaboration, but mainly you are working independently. You are helping our product engineering work mature with your expertise.

Working closely with the CTO and CEO, this role partners early in shaping product direction, translating ambiguous ideas into shipped experiences, and continuously refining them based on usage and feedback. You thrive in ambiguity, move fluidly between idea and implementation, and see building/prompting/writing code as designing experiences that unlock educator impact at scale. As a part of our start up engineering team, you are expected to take ownership and contribute to developing foundational practices around engineering at sideby.

The Senior Product Engineer, Frontend is a builder at heart, combining strong frontend craft with product intuition to shape how learners actually experience sideby. Equal parts engineer, product thinker, and UX collaborator, this role is about more than implementing interfaces. This role is about deciding what should exist, how it should feel, and how it evolves based on real user behavior.

Responsibilities

Product Ownership and User Experience

  • Own core learner-facing workflows from early concept through shipped experience and ongoing iteration

  • Partner with the CEO and CTO early to shape what gets built — not just how — by questioning assumptions, simplifying flows, and prioritizing what will drive real user impact

  • Translate ambiguous product ideas into intuitive, high-quality experiences that feel fast, clear, and trustworthy for educators and learners

  • Simplify and reduce complexity in workflows — knowing what to cut, sequence, or rethink to create clarity for users

  • Move fluidly from idea → prototype → production, using experiments, feedback, and data to guide what to build next while balancing speed, quality, and simplification

  • Own features beyond launch by continuously improving them based on real usage, feedback, and observed behavior

  • Instrument workflows and features to understand user behavior, and use that data to guide iteration and product decisions

  • Engage with user feedback and support signals to identify where workflows break or create friction, and translate those insights into clear product improvements, fixes, and iteration priorities

  • Bring strong frontend and product judgment while collaborating closely with domain experts to ensure experiences reflect real educator needs

Frontend Craft and Interaction Design

  • Design and build polished, performant frontend experiences using modern frameworks (e.g., React, TypeScript)

  • Own the quality of interaction details including state management, edge cases, responsiveness, accessibility, and performance

  • Raise the bar for frontend quality through attention to performance, accessibility, and interaction detail

  • Develop and evolve reusable UI patterns and workflows that enable faster iteration without sacrificing user experience

  • Craft AI-enabled interactions that feel intuitive and useful, including handling latency, feedback loops, uncertainty, and user control

Product-Driven Engineering Collaboration

  • Work closely with the CTO and backend systems to define API contracts, data flows, and technical tradeoffs that support strong user experiences

  • Serve as a product and frontend voice in scoping conversations to help the team understand tradeoffs, sequencing, and opportunities to simplify

  • Collaborate across product, design, and engineering to ensure what we build is grounded in real educator workflows and needs

Leadership and Culture

  • Model sideby’s values and norms. Seek and expect collaboration. Celebrate small wins.

  • Foster a culture of clean code, kind reviews, and joyful iteration by making engineering both rigorous and human.

  • Help shape the norms of a startup engineering team by balancing velocity with care, and craft with curiosity.

  • Coach, mentor, and support teammates as we grow by offering feedback that builds trust, sharpens thinking, and reflects a shared commitment to excellence.

  • Hold space for uncertainty, conflict, and learning to help build a culture where growth is expected, feedback is kind, and outcomes are shared.

Subject to Change

All of this is subject to change. All terms, including job responsibilities, compensation, and benefits, are subject to change depending on company needs and legal requirements.

Inclusive Hiring

sideby is committed to creating an inclusive and equitable workplace. We do not discriminate on the basis of race, color, religion, gender, gender identity or expression, sexual orientation, national origin, disability, age, veteran status, or any other protected characteristic. All employment decisions are made based on qualifications, merit, and business needs.

We strongly encourage folks to apply with nontraditional backgrounds, or if you’re not sure you check every box above. We are interested in your skills and potential, not just your credentials.

Overview

Status

At-Will, Full Time Employment reporting to the CEO

Compensation and Equity

  • Base Salary Range: $135,000 - $145,000 (full-time)

  • Plus Equity: Incentive Stock Options (ISOs) 0.4% - 0.6%

    • Granted under sideby's 2025 Stock Plan

    • Standard 4-year vesting with a 1-year cliff, followed by monthly vesting

Remote

This is a fully remote position, allowing you to work from anywhere in the United States. While the role is primarily remote, some travel (~<5%) may be required to support clients, engage in company-wide gatherings ~1/year, or provide in-person services as needed. Travel expectations will be determined based on client and company needs.

Retirement

sideby offers retirement benefits for employees. Currently, this is a 401k from Human Interest which becomes available after 3 months of employment. There is an employer 100% match up to 1% of compensation, with a 50% match up to 6% of compensation. Vests on a two year cliff.

Office Set Up, Co-Working Spaces, Phone Stipend

Up to $1,000 reimbursed for the initial set up of your sideby home office to support a safe, ergonomic home workspace. If you need a coworking space, sideby may pay the monthly fee directly up to $300/month. sideby also offers a $40/month mobile phone stipend on top of salary.

Educational Assistance Program

sideby offers up to $5,250 pre-tax for educational assistance in accordance with our plan starting with monthly reimbursements after one month of employment, including qualified cost of books, equipment, fees, supplies, and tuition. 

Work Calendar & PTO Policies - Flexible schedule, 36 hour work week, unlimited PTO, generous holidays (All major US Holidays plus a winter holiday break [~2 weeks], summer break [~2 weeks], Thanksgiving/Indigenous Peoples’ Day week, February break [~2 days]) with some shared on call potential for tech support

Biannual Bonus Eligibility

Eligibility to receive bonuses twice per year, typically in June and December, based on individual performance, team goals, and company profitability.

Growth and Development

We design for growth and are obsessed with learning, ensuring early team members have priority access to new roles, tools, responsibilities, and leadership opportunities.

Health and Wellness

sideby does not offer medical, vision, or dental benefits yet. This is planned for the future.

Qualifications

  • 5+ years building production web applications, with strong expertise in modern frontend frameworks

  • Demonstrated experience owning features from ambiguous problem → shipped product → iteration (not solely implementing pre-scoped tickets)

  • Strong product and UX judgment with the ability to simplify complex workflows and make clear decisions about what to build, cut, or refine

  • Experience building and refining user-facing workflows based on real usage, feedback, and observed behavior or data

  • Ability to move fluidly between prototyping and production, balancing speed with quality and maintainability

  • Comfort working in ambiguity and partnering closely with teammates to shape product direction

  • Strong attention to detail in interaction design, performance, accessibility, and overall frontend quality

  • Nice to have but not required: Experience in adult learning or edtech; Experience designing human-centered, AI-enabled or AI-assisted user experiences

Apply here.