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Principal Engineer

SunCore Digital


Job Location:

Scottsdale, AZ - USA

Yearly Salary: USD 200000 - 260000
Posted: 1 October 2026 (21 hours ago)
Application Deadline: 29 December 2026
Vacancies: 1 Vacancy

Job Summary

Location: Remote (Global) HQ: Bellevue WA
Team: Engineering
Type: Full-Time Deferred Compensation Bonuses
Reports To: CTO

We are looking for a Principal Engineer to own the architecture of our platform and lead it through its next stage. This is one role with three responsibilities in sequence. First a hands-on assessment of the platform as it exists today produced by reading the code the infrastructure and the data flows yourself working alongside our senior engineers and delivered in roughly three weeks as a written statement of what the architecture is what is sound what is fragile and where the security and scaling risks sit. Second a target architecture for handling user data and financial transactions securely at scale with a keep refactor or rebuild recommendation for every component and the cost of each path; whether we refactor or rebuild is an output of your assessment not a premise of this role and the target is approved by the CTO before anything is built. Third leading our engineering team through execution while staying hands-on yourself in the highest-risk components the money flows and the data layer. You will own architecture decisions made in writing and in the open subject to peer review and challenge with the CTO approving the target architecture. This is a hands-on senior engineering position rather than an advisory one: the assessment is produced from the code itself and the highest-risk components carry your commits. This is a remote-first role with deferred compensation until 60 days post-MVP launch plus equity bonuses and annual offsite perks. We value speed ownership and collaborative energy.

What Youll Do

Spend your first four weeks assessing the platform by reading the code the infrastructure and the data flows yourself with our senior engineers as your guides to the current system

Deliver that assessment in writing with industry standard notation accurate to the code as it currently exists: what the architecture is today what is sound what is fragile and where the security and scaling risks are

Design the target architecture for securely handling user data and financial transactions at scale

Recommend keep refactor or rebuild for each component state the cost of each path and defend the recommendation under challenge

Present the target to the CTO for approval before anything is built

Lead the engineering team through execution of the approved plan

Stay hands-on in the highest-risk components the money flows and the data layer with your own commits

Make architecture decisions in writing and in the open through peer review and change them when the evidence says to

Set the technical standards the team builds against and hold your own work to them

Report progress risks and tradeoffs directly to the CTO

Document decisions clearly so other engineers on the team do not have to ask you

What You Bring

12 years of software engineering experience with 5 years at staff or principal level on systems carrying real user data and real money

Current hands-on practice: you are writing production software today

Demonstrated experience assessing a production system you did not write and publishing findings its owners acted on

Experience designing and building systems that move money and hold sensitive user data including payments identity verification and the failure modes of both

Depth across our kind of stack: and TypeScript services Python data pipelines event-driven designs relational and document stores and Kubernetes in production

A track record of evidence-based recommendations in both directions: keeping systems worth keeping and rebuilding systems that warranted it

Experience leading senior engineers through significant architectural change while contributing code yourself

Comfort working under peer review and challenge: you put your reasoning in writing invite review and adjust when the evidence shows a better path

Clear written communication since much of this role is producing documents other people act on

Bonus: experience in fintech payments or digital assets with compliance frameworks such as SOC 2 or taking a company from first build to scale

Compensation & Benefits

Competitive pay range:

Offshore mid-senior rates:

Deferred compensation model:

Annual performance bonus (significant portion of total comp)

Milestone bonuses tied to product delivery

Health dental and vision plans for U.S.-based hires

Annual paid offsite (Caribbean Hawaii ski destinations)

Why Join Us

You will own the architecture of a platform that is close to reaching real customers with a direct line to the CTO and no committee between your assessment and the decision. What you conclude in your first month sets the companys technical direction and you will then build the riskiest parts of it with your own hands. If you want authority that is earned through evidence exercised in the open and paired with real code we would love to meet you.

Apply now or reach out directly to


Required Experience:

Staff IC