Top 1898 Application systems developer Jobs in New York, Ny

Principal Software Engineer, AI Systems
ReClick.io —Brooklyn, NY
- $150,000 - $210,000 a year
- Full-time
- 6 years
- Office
- APIs
Quick Apply
Senior QA Automation / Manual Test Engineer
Donnelly & Moore Corporation —New York, NY
- From $90 an hour
- Contract
- Hybrid work
- Computer Science
- SQL
- Senior level
- Health insurance
- Dental insurance
Quick Apply
5d
Application Developer - AI Trainer
DataAnnotation —New York, NY
- $50 - $100 an hour
- Part-time
- Remote
- Writing skills
- English
- Mid-level
- Flexible schedule
Quick Apply
Full Stack Developer
Consumer Priority Service —Brooklyn, NY
- $28 - $32 an hour
- Full-time
- Hybrid work
- Salesforce
- Mid-level
- Office
- Health insurance
- 401(k)
Quick Apply
Senior Java Developer
Tavant Technologies, Inc. —New York, NY
- $120,000 - $140,000 a year
- Full-time
- Hybrid work
- Computer science
- Computer Science
- Bachelor of Science
- Relocation assistance
- Health insurance
Quick Apply
Systems Developer (New York)
Elliot Partnership —New York, NY
- $300,000 - $450,000 a year
- Full-time
- Computer Science
- 5 years
- Data analysis skills
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Application Developer
BRONX DISTRICT ATTORNEY —Bronx, NY
- $115,000 a year
- Full-time
- Computer Science
- Mid-level
- Office
- Loan forgiveness
5d
Application Developer
Research Foundation of The City University of New York —New York, NY
- $135,000 - $143,000 a year
- Full-time
- Hybrid work
- System design
- Research
- SQL
Linux Systems Developer
Elliot Partnership —New York, NY
- $450,000 - $650,000 a year
- Full-time
- Computer Science
- Senior level
- Python
Quick Apply
Application Developer
Barrow Wise Consulting —New York, NY
- $70,000 - $130,000 a year
- Full-time
- Computer Science
- Research
- Mid-level
- Health insurance
- Paid time off
Quick Apply
People Systems Developer
Datadog —New York, NY
- $145,000 - $215,000 a year
- Hybrid work
- Google Workspace
- System design
- Mid-level
- Paid parental leave
- Employee stock purchase plan
Quick Apply
Systems Anlst/Programmer Application Specialist
NJ Transit —Newark, NJ
- Computer science
- Computer Science
- Mid-level
- Commuter assistance
- Health insurance
3d
Business Systems Developer
ChemTreat —New York, NY
- $135,000 - $150,000 a year
- Full-time
- 7 years
- Bachelor's degree
- Experience equivalent to degree accepted
- Health insurance
- Dental insurance
Quant Systems: Systems Developer (New York)
D. E. Shaw & Co., L.P. —New York, NY
- $200,000 - $250,000 a year
- Computer Science
- 5 years
- Data analysis skills
- Health insurance
- 401(k) matching
ServiceNow Application Developer
Genpact —New York, NY
- $52 - $57 an hour
- Temporary
- Hybrid work
- Mid-level
- Office
- 3 years
Application Developer
DEPT OF CITYWIDE ADMIN SVCS —New York, NY
- $107,137 - $123,208 a year
- Full-time
- Computer Science
- System design
- Office
- Loan forgiveness
Java Developer
Contact Government Services, LLC —New York, NY
- $140,000 - $220,000 a year
- Full-time
- Mid-level
- 3 years
- SQL
- Health insurance
- Dental insurance
Quick Apply
Application Developer in Consulting
Campana & Schott Business Services GmbH —New York, NY
- $84,000 - $96,000 a year
- Full-time
- Computer science
- Azure
- Computer Science
- Paid holidays
- Health insurance
QA Automation Engineer
DEPARTMENT OF FINANCE —Manhattan, NY
- $115,000 - $130,000 a year
- Full-time
- Azure
- Office
- SQL
- Work from home
- Loan forgiveness
HL7 Application Developer
The Fund for Public Health in New York City —Queens, NY
- $80,000 - $123,000 a year
- Full-time
- Hybrid work
- Background check
- Microsoft Excel
- Computer Science
- Commuter assistance
- Health insurance
Quick Apply

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application systems developer jobs near new york, ny

Principal Software Engineer, AI Systems

ReClick.io
Brooklyn, NY

Quick Apply

Job Details

Full-time
$150,000 - $210,000 a year

Qualifications

AI models
Software engineering
React
AI tools proficiency
Production systems
Next.js
Web applications
TypeScript

Full Job Description

About Promobile

Promobile is an experiential marketing agency that designs and produces large-scale brand activations for major consumer brands. To scale what we do, we're building an AI-powered software platform that plans, prices, and operates those activations — used first by our own team, then offered to the wider experiential marketing industry.

You'd join the small software team behind that build, backed by an operating agency with real customers, real budgets, and deep domain expertise. We ship production AI systems, not demos.

What We're Looking For

You've shipped at least one production system that calls an LLM and reasons about the output structurally. Not chat completions or one-shot prompts, but a real pipeline with prompt caching, Zod-validated structured outputs, evaluation harnesses, and the ability to debug why a model returned the wrong shape three weeks after you shipped it.

On top of that, you've shipped full-stack TypeScript products in production. You've debugged a broken RLS policy. You know when to reach for a database function vs. application logic, when something should be configurable vs. static state. You have opinions about data fetching patterns and can explain why optimistic updates matter for UX.

You're comfortable being the most senior technical voice in the room. You'll push back on bad ideas, but you'll also execute on decisions even if it means adding complexity on the backend so the user gets the best experience.

Experience: 6+ years building production web applications, with at least 1 year of that on production AI/LLM systems.

Not The Right Fit If

You've used LLM APIs but haven't designed a production pipeline around them
You're transitioning from frontend-only or backend-only work and want to "grow into" full-stack
You need an engineering manager, a senior peer to learn from, or structured onboarding to ramp up
This would be your first Senior, Lead, or Principal role

Responsibilities

Own delivery of a modern SaaS web application with AI integrations
Architect modern web features deployed to serverless infrastructure and cloud (edge) functions for long-running tasks. Prioritize correctness, performance, and flexibility
Model complex problems in a relational database, manage schema migrations, optimize query performance, and secure data with RLS policies
Write production-quality TypeScript across the full stack: Next.js App Router (React) with TailwindCSS on the front end, Supabase Edge Functions (Deno) on the back end, and PostgreSQL with RLS for data integrity
Build and maintain the AI pipeline, an extensible orchestration system (Claude Haiku + Sonnet) that generates structured outputs with prompt caching and Zod-validated schemas
Implement and iterate on UI features using our Glow UI design system, making sure every interaction feels fast and intentional
Manage CI/CD pipeline via Github Actions and Vercel webhooks
Participate in and challenge product and UX discussions. We operate with full transparency, so you're expected to have opinions on what to build and why
Develop test suites that provide important feedback in a fast-moving startup environment. It's important to move fast, but also move forward, and a strong test suite prevents regressions

Culture

We're a small team that punches far above our weight. A few things define how we work:

We have strong architectural opinions. Enforcing strong architecture allows us to move fast without reinventing the wheel on every feature. Pick a direction and stick with it until it needs upgrading.

We move fast without cutting corners. Fast means clean builds, clean lint, and working tests, not skipping them. Surprises cost time, and minimizing them upfront allows us to move fast.

We don't hide from bad news. If something is broken, architecturally wrong, or likely to cause problems at scale, we address it head on and stay open to change. Prioritize the user always.

We treat AI as a collaborator. We use Claude heavily in our development workflow (Claude Code, Cowork, and in-product pipelines). You should be comfortable prompting, evaluating, and iterating on AI-generated code rather than rubber-stamping it.

Technology

Next.js 16 (App Router)
React 19 + Tailwind CSS v4
TypeScript
Supabase (PostgreSQL)
Supabase Auth (JWT)
Deno (Supabase Functions)
Anthropic Claude API (Haiku + Sonnet)
SWR + SWR Mutation
Vitest

Logistics

W-2 (US)
NYC-based: in-office at our Brooklyn office

Pay: $150,000.00 - $210,000.00 per year

Application Question(s):

Describe the most complex production system you've designed and shipped end-to-end. What was the hardest architectural decision you made, and what would you do differently now?
A link to something you've built (a GitHub repo, deployed product, technical writeup, or portfolio piece). Add one sentence on what we should look at and why.

Work Location: In person

Quick Apply

Refine Your Search

application systems developer jobs in new york, ny

Principal Software Engineer, AI Systems

Senior QA Automation / Manual Test Engineer

Application Developer - AI Trainer

Full Stack Developer

Senior Java Developer

Systems Developer (New York)

Application Developer

Application Developer

Linux Systems Developer

Application Developer

People Systems Developer

Systems Anlst/Programmer Application Specialist

Business Systems Developer

Quant Systems: Systems Developer (New York)

ServiceNow Application Developer

Application Developer

Java Developer

Application Developer in Consulting

QA Automation Engineer

HL7 Application Developer

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