Staff Software Engineer

ApplyMint; New York (NY); On-site; USD 243,000 - 297,000; Full time

Benefits offered by this job

Health insurance

Dental insurance

Vision insurance

Unlimited PTO

Equity grant (ISOs)

Job summary

Onshore is seeking a Staff Software Engineer in New York City to lead architectural direction and impactful engineering initiatives across multiple pillars. You will own durable systems and develop scalable tax- computation platforms while mentoring peers and aligning teams without direct authority.

You will influence long-term strategy, prototype critical components, and collaborate closely with founders and leadership to ensure reliable, compliant software delivery in a fast-evolving domain.

Qualifications

• 8+ years of software engineering experience at staff-level or equivalent scope.
• Designed and shipped systems that are highly available and correct across critical domains.
• Strong architectural judgment; prototyping informs strategy and code.
• Able to influence direction and align teams without direct authority; communicates well.

Responsibilities

• Define and drive the technical strategy for one pillar, including long-term architecture decisions across agent infrastructure, tax computation, and data pipelines.
• Own end-to-end technical solutions for durable agent workflows, versioned tax computation, evaluation infrastructure, and filing pipelines.
• Identify and lead infrastructure investments enabling new study types, broader entity/state coverage, and higher operator leverage.
• Make principled build-versus-buy decisions and create roadmaps balancing delivery with platform health.
• Advise founders and engineering leadership on technical trade-offs and downstream business implications.
• Multiply the team: your designs and reviews raise the quality of work shipped by others.

Skills

Leadership across teams

Systems design

Architectural judgment

Cross-functional collaboration

Technical mentorship

In-person collaboration

Job description

STAFF SOFTWARE ENGINEER

About Onshore

Onshore is the modern standard for U.S. companies claiming the R&D tax credit.
We find, document, and defend the tax credits and deductions that farms,
manufacturers, architects, and engineers have earned. Claiming the R&D tax
credit has historically been an ordeal full of consultants, spreadsheets, and
hidden fees. Now, our software and AI-powered solutions read every line of a
client's records against the tax code, produce verified computations, and are
reviewed by a credentialed tax professional before filing.

About the team

Engineering at Onshore is three teams, and Staff engineers own their technical
direction. Platform & Agents builds the infrastructure everyone else runs on:
the agent execution framework behind every study, the evaluation harness that
proves agent output is correct before an expert sees it, and the tooling
operators use to run engagements. Agriculture turns farm records into defensible
R&D credit computations and is expanding into livestock, dairy, and soil
fertility deductions. Corporate Tax & Compliance is taking Onshore from credit
studies to the filing itself, with full corporate returns targeting general
availability in early 2027.

Staff is the top of our ladder and it is an engineering role in the fullest
sense. We run a technical leadership model: no direct reports by default, and
your influence comes through architecture, code, and technical direction rather
than headcount. You will never be asked to trade your editor for a calendar. The
first Staff engineers here set the direction the next ten engineers inherit.

What you'll do

• Define and drive the technical strategy for one of Onshore's three pillars, including multi-year architecture decisions across agent infrastructure, tax computation, and data pipelines
• Own end-to-end technical solutions for the systems that can't be wrong: durable agent workflows, versioned tax computation, evaluation infrastructure, filing pipelines
• Identify and lead the infrastructure investments that unlock what's next: new study types, new entity and state coverage, and higher leverage for the operators who run engagements
• Make principled build-versus-buy decisions and produce technical roadmaps that balance near-term delivery against long-term platform health
• Advise the founders and engineering leadership on technical trade-offs and their downstream implications for the business
• Multiply the team: your primitives, designs, and reviews raise what every other engineer ships

Minimum requirements

• 8+ years of software engineering experience, with demonstrated impact at staff or equivalent scope: leading initiatives across multiple teams or systems.
• A proven track record designing and shipping systems that are both highly available and correct, in domains where wrong output has consequences.
• Deep architectural judgment paired with genuinely fast hands. You prototype to think, and your strategy shows up as code.
• The ability to influence technical direction and align teams without direct authority, with excellent written and verbal communication across engineering and leadership.
• High ownership: comfortable with ambiguity, able to define the problem and the plan rather than execute a predefined spec.
• Able to work in person at our New York City office.

Preferred qualifications

• Experience making LLM-powered systems production-reliable: agents, evaluation infrastructure, structured extraction at scale. You know the distance between a demo and a system users rely on.
• Experience owning platforms other teams built on, and the judgment about primitives versus one-offs that comes with it.
• Compliance-aware system design: audit trails, data lineage, financial controls, or regulated-domain experience.
• Experience with correctness-critical computation: ledgers, billing, rules engines, or anything compiler-shaped.
• A track record of raising senior engineers through technical direction and of contributing meaningfully to hiring and engineering culture.

Pay and benefits

The annual base salary for this role is $270,000, with a total equity grant
valued at $100,000. Equity is ISOs valued at our Series B preferred price, on a
standard four-year vest with a one-year cliff and early exercise available.
Benefits include health, dental, and vision coverage and unlimited PTO.

Our interview process

Three conversations, about two hours of live time, with a decision typically one
day after each step.

1. Resume deep dive, 30 minutes. We go through your experience and projects at
real depth: what you built, the decisions you made, and what you'd do
differently. Bring the work you're proud of.

2. Take-home assessment, then a one-hour review. You build something on your
own time, then walk us through it live: your assumptions, patterns, and
tradeoffs. We care as much about how you reason through the decisions as the
code itself.

3. Behavioral interview, 30 minutes. How you work, how you handle ambiguity and
disagreement, and whether Onshore is the right place for you, in both
directions.

No six-round gauntlets, no trick questions, no waiting weeks to hear back.