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Senior Full Stack Net Developer Jobs in Mahwah, NJ

Understood

Senior Full-Stack Engineer

New York, NY · On-site

Who you are To advance Understood's mission and further our impact, we're hiring a Senior Full-Stack Engineer, reporting to an Engineering Manager, to work across our frontend, backend, and AI ...

Trunk Tools, Inc.

Senior Full Stack Engineer

New York, NY · Remote

$166K - $215K/yr

Both sessions will be attended by a panel of two senior engineers. Our full-stack interview covers candidate's familiarity with implementing features across the breadth of a TypeScript and Express ...

Fora

Senior/Staff Full Stack Engineer

New York, NY · Hybrid

$180K - $225K/yr

About The Role We're looking for a seasoned Senior/Staff Full Stack Engineer to join us as we continue to build Fora's products and infrastructure. In this role, you will be instrumental in building ...

Trunk Tools

Senior Full Stack Engineer

New York, NY · On-site +1

$166K - $215K/yr

Both sessions will be attended by a panel of two senior engineers. Our full-stack interview covers candidate's familiarity with implementing features across the breadth of a TypeScript and Express ...

Gamer's Choice

Senior Full-Stack Engineer

New York, NY · On-site

$120K - $150K/yr

... directed Senior Full-Stack Engineer to take full ownership of our core internal platform that ... Software Developer is expected to: Days 1-60 * Implement monitoring, logging, and a simple ...

GOAT Group

Senior Full Stack Engineer

New York, NY

$146K - $183K/yr

We are looking for a Senior Full Stack Engineer to join our Consumer team, with a strong emphasis on backend architecture and end-to-end feature delivery. This is an immediate, high-impact role, you ...

Fin

Senior Full-Stack Software Engineer

New York, NY · On-site

$125K - $250K/yr

About the role We are looking for a Senior Full Stack Engineer to join the early team and help define how money moves on Fin. You will work closely with the CEO, CTO, and a small group of senior ...

Fin

Senior Full-Stack Software Engineer

New York, NY · Remote

$125K - $250K/yr

About the role We are looking for a Senior Full Stack Engineer to join the early team and help define how money moves on Fin. You will work closely with the CEO, CTO, and a small group of senior ...

talentpluto

Full Stack Engineer

New York, NY · On-site

$250K - $260K/yr

The Opportunity Our partner is hiring Senior Full Stack Engineers to help build the next generation of their product. This is a backend-heavy product engineering role focused on developing customer ...

talentpluto

Full Stack Engineer

New York, NY · On-site

$250K - $260K/yr

The Opportunity Our partner is hiring Senior Full Stack Engineers to help build the next generation of their product. This is a backend-heavy product engineering role focused on developing customer ...

Nourish

Senior Full Stack Engineer

New York, NY · On-site +1

Nourish is looking for talented Senior Full Stack Engineers to join our fast-growing team! As a key early member of Nourish's engineering team, you'll play a pivotal role in shaping the future of our ...

Nourish

Senior Full Stack Engineer

New York, NY · On-site +1

Nourish is looking for talented Senior Full Stack Engineers to join our fast-growing team! As a key early member of Nourish's engineering team, you'll play a pivotal role in shaping the future of our ...

Nourish

Senior Full Stack Engineer

New York, NY · On-site +1

Nourish is looking for talented Senior Full Stack Engineers to join our fast-growing team! As a key early member of Nourish's engineering team, you'll play a pivotal role in shaping the future of our ...

talentpluto

Full Stack Engineer

New York, NY · On-site

$250K - $260K/yr

The Opportunity Our partner is hiring Senior Full Stack Engineers to help build the next generation of their product. This is a backend-heavy product engineering role focused on developing customer ...

Zenith Mind Inc.

Full Stack Developer

New York, NY

We are looking for a skilled Full Stack Developer to join our team. The ideal candidate will be ... NET. * Design and optimize database structures (SQL/NoSQL). * Ensure application performance ...

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All JobsFull Stack Net Developer JobsSenior Full Stack Net Developer JobsSenior Full Stack Net Developer Jobs in Mahwah, NJ

Senior Full Stack Net Developer information

See Mahwah, NJ salary details

$10

$56

$76

How much do senior full stack net developer jobs pay per hour?

As of Aug 10, 2026, the average hourly pay for senior full stack net developer in Mahwah, NJ is $56.42, according to ZipRecruiter salary data. Most workers in this role earn between $49.71 and $62.74 per hour, depending on experience, location, and employer.

What is the difference between Senior Full Stack Net Developer vs Software Engineer?

AspectSenior Full Stack Net DeveloperSoftware Engineer
Required CredentialsBachelor's in CS or related, .NET certificationsBachelor's in CS or related, general programming certifications
Work EnvironmentDeveloping web applications using .NET, working in Agile teamsDesigning and developing software solutions across various platforms
Employer & Industry UsageTech companies, finance, healthcare using Microsoft stackBroad industry use, including tech, finance, startups

Senior Full Stack Net Developers focus on building and maintaining web applications using the Microsoft .NET framework, often working in Agile teams. Software Engineers have a broader scope, designing and developing software across multiple platforms. While both roles require similar educational backgrounds, Senior Full Stack Net Developers specialize in the Microsoft stack, making them more suitable for roles centered around .NET technologies.

What cities near Mahwah, NJ are hiring for Senior Full Stack Net Developer jobs? Cities near Mahwah, NJ with the most Senior Full Stack Net Developer job openings:
Senior Full Stack Net Developer jobs near you

Senior Full-Stack Engineer

Understood

New York, NY • On-site

Full-time

Re-posted 20 days ago

Job description

About Understood
Understood is a nonprofit focused on shaping the world for difference. We raise awareness of the challenges and strengths of people who learn and think differently. Our resources help people navigate challenges, gain confidence, and find support and community so they can thrive.
Having a shared commitment to our values is a key factor in any hire we make. We have five core values:
  1. Continuously learn.
  2. Act with intention.
  3. Champion difference.
  4. Inspire change.
  5. Grow together.

Come be part of an organization with an entrepreneurial spirit that's helping to shape the world for difference. Together, we can build a world where everyone can reach their full potential.
To learn more about Understood, please visit: www.understood.org.
Who you are
To advance Understood's mission and further our impact, we're hiring a Senior Full-Stack Engineer, reporting to an Engineering Manager, to work across our frontend, backend, and AI systems. You'll join a cross-functional team and collaborate closely with product, design, data, and content teams to build and evolve the platforms that power Understood.org and our AI-assisted experiences.
The ideal candidate is comfortable working across the stack-from React and Next.js on the frontend to Python and Django on the backend-and brings demonstrated experience with LLM-powered products. You'll contribute to a growing portfolio of AI tools, including our conversational assistant and emerging multimodal experiences, while helping millions of families navigate learning and thinking differences.
This is a hybrid role that requires a minimum of three (3) days a week in our NYC office, with a focus on Monday, Tuesday, and Thursday. We are a Mac-based environment, and team members are provided a Mac laptop for their work.
What you'll do
  • Collaborate with cross-functional teams (product, design, data, content) to design, develop, and maintain features across the full stack
  • Build high-quality, accessible frontend experiences in Next.js, React, and TypeScript, including the stateful, streaming chat and multimodal (voice, text-to-speech, speech-to-text) interfaces that power our AI assistants.
  • Architect and ship the backend services and APIs (Python, Django, SQL) behind them, including integrations with PostgreSQL, Redis, Pinecone, and Contentful.
  • Monitor and improve AI performance KPIs, including system latency and time-to-first-token (TTFT)
  • You know how to build accessible and localized products
  • Own your work across the entire software development lifecycle, from architecture and planning through development, deployment, and monitoring
  • Ship early and often. Break big problems into small, releasable increments and get them in front of users using feature flags, A/B tests, and progressive rollouts rather than big-bang launches.
  • Stay close to the people we serve. Dig into user feedback, support tickets, and product analytics to find the real problem, then ship the smallest change that solves it.
  • Leverage tools such as DataDog, Sentry, and Langsmith for monitoring, alerting, and analytics to proactively identify and resolve issues; own your services' health
  • Collaborate effectively with both internal teams and external development partners to co-design solutions, troubleshoot integrations, and review code
  • Participate in code reviews, mentor junior engineers, and contribute to continuously improving development processes and best practices
  • Stay current with emerging technologies and industry trends, advocating for tools and practices that enhance our development process and product offerings
Must-haves
  • 7+ years of professional experience delivering production software, with meaningful depth in both frontend and backend development
  • Strong expertise in TypeScript, React, and Next.js, including experience building stateful, streaming interfaces
  • Demonstrated experience with Python and Django (or equivalent backend frameworks)
  • Proficiency in designing and building RESTful API's
  • Experience working with relational databases (PostgreSQL, MySQL) and vector databases (Pinecone)
  • Comfortable working in the cloud (GCP, AWS, or similar)
  • Experience monitoring and instrumenting production services; we use Datadog and expect engineers to own their services' health
  • Demonstrated ability leading projects as a technical lead
  • Ability to break complex projects into small, shippable increments and get them in front of real users quickly, using feature flags, staged rollouts, and experimentation platforms (Statsig or similar) to de-risk along the way, rather than sitting on a polished v3.
  • Genuine interest in user problems. You read the support inbox, watch session replays, and treat "is this actually working for people?" as part of the definition of done.
  • Excellent communication skills, particularly when explaining technical matters to non-technical stakeholders and more junior engineers
  • Thrives in a collaborative environment and is motivated to promote a culture of teamwork, knowledge sharing, and continuous improvement
  • Familiarity with observability tooling beyond basic monitoring (distributed tracing, log analytics)
Nice-to-haves
AI & Personalization
  • Production experience with LLM orchestration and agent design: LangChain / LangGraph / LangSmith or equivalents, multi-agent routing, memory and personalization layers (LangMem or similar), and Model Context Protocol (MCP).
  • A practical approach to making LLMs reliable in production: prompt engineering and tuning, systematic evaluation of outputs, guardrails and fallbacks, and designing around hallucinations and other failure modes.
  • Experience with retrieval-augmented generation (RAG) and vector databases (Pinecone, Weaviate, pgvector, or similar).
  • Experience building real-time, multimodal AI experiences (streaming text, voice, TTS/STT, Web Audio, WebRTC, real-time OpenAI SDKs), including optimizing latency and time-to-first-token (TTFT) in production.

Trust, Safety & Compliance
  • Experience building or contributing to trust and safety systems (content moderation, input/output filtering, guardrails for AI-generated content)
  • Familiarity with privacy-by-design principles, data classification, and consent management in user-facing products
  • Understanding of compliance frameworks relevant to health-adjacent or child-focused digital products (e.g., COPPA, state companion-app laws, SOC 2, ISO 42001)

General
  • Experience with Contentful
  • Experience with asynchronous programming and task queues
  • Experience with Docker and/or Kubernetes
  • Proven ability to collaborate with and integrate code from external development agencies or contractors
  • Experience with React Native or mobile app development
  • A background in the nonprofit sector or a strong passion for using technology for social good

The base salary range for this role is minimum $155,000 - $175,000 maximum, depending on years of experience and qualifications. We offer a comprehensive benefits package that supports wellness for our team members and their families. You can learn more about our benefits and offerings.
Understood.org does not sponsor applicants for work visas or legal permanent residence, including providing assistance with OPT extensions.
Commitment to diversity, equity, and inclusion
Understood encourages individuals of all learning styles and ethnic, racial, and socioeconomic backgrounds, including those whose life experiences may include the challenge of access due to a disability, to apply for this position. We are committed to maximizing the diversity of our organization, as we want to engage all those who can contribute to supporting this work.
Understood is an equal opportunity employer and considers all applications without regard to race, color, religion, creed, sex, national origin, ancestry, age, alienage or citizenship status, marital or familial status, domestic partnership status, caregiver status, sexual orientation, gender, gender identity or expression, change of sex or transgender status, genetic information, medical condition, pregnancy, childbirth or related medical conditions, physical or mental disability (where the applicant or employee is qualified to perform the essential functions of the job with or without reasonable accommodation), any protected military or veteran status, or status as a victim of domestic or dating violence, sexual assault or offense, stalking, or any other characteristics protected by federal, state, or local law or that of persons with whom that individual associates, or any other legally protected characteristics.
For additional information on learning and thinking differences, including ADD/ADHD, dyslexia, dyscalculia, dysgraphia, dyspraxia, executive function challenges, nonverbal learning disabilities, processing issues, and more, please visit www.understood.org.
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