Senior/Staff Fullstack Engineer
$180k - $240kBlackbird Labs
About Blackbird:
Blackbird Labs is a loyalty and payments platform establishing meaningful connections between the world’s best restaurants and their customers.
Served up in 2022 by Ben Leventhal, co-founder of Eater and Resy, Blackbird offers a fully customizable loyalty programming platform for restaurants and a consumer app designed to make every guest feel like a bonafide VIP no matter where they dine. Backed by Union Square Ventures, a16z, Amex Ventures, Variant Fund, and other forward-thinking investors, Blackbird is out to revolutionize the restaurant industry.
About Our Team:
At Blackbird, our values guide everything we do and our talent principles define the key traits we seek in our employees.
We have passion for our product – committed to our mission and instinctively think like and go the extra mile for our customers. We are elite performers – striving for excellence, going above and beyond to achieve exceptional results, and learning quickly with horsepower, drive, and grit. We make others better – taking initiative to elevate others, giving and receiving feedback, and championing a culture of growth. We hold one another accountable to living out our talent principles as we march together to achieving our mission.
About the Job
Blackbird is looking for a Senior Fullstack Engineer to own Flycar, our restaurant payments terminal used by thousands of restaurants. You'll build the software servers and managers rely on during every service, where downtime means a dining room that can't close checks.
This is a Next.js/TypeScript monorepo powering multiple apps across payments, loyalty, and restaurant operations. You'll work primarily in Flycar but contribute across the platform.
Responsibilities
Own end-to-end development of Flycar - UI, API integration, WebSocket flows, and fallback handling when things go wrong
Build interfaces that work reliably across FSR and QSR environments with inconsistent hardware, spotty networks, and dozens of POS configurations
Drive frontend architecture decisions — you'll shape how we build, not just what we build
Debug real-time payment flows that span our terminal, mobile app, and backend services
Requirements
5+ years with React and TypeScript
Experience with real-time data (WebSockets, polling) and graceful degradation on unreliable networks
Track record shipping software where failure has immediate, visible consequences — payments, POS, fintech, or similar
Comfort working across the stack: reading API contracts, debugging queries, reasoning about system design
Strong ownership instincts in a small, fast-moving team where scope is fluid
Nice to Haves
Experience with payments infrastructure, POS systems, or restaurant/hospitality tech
Background in multi-tenant systems or hardware-constrained environments (terminals, kiosks)
Exposure to blockchain, crypto, or web3
Experience with Datadog, Amplitude, or similar observability/analytics platforms
Pay Transparency Notice & Benefits
Depending on your work location and experience the target annual salary for this position can range from: [$180,000-$240,000] USD. This range does not include the equity component of the overall compensation package. Disclosure in accordance with New York City's Pay Transparency Law.
Commitment to Equal Opportunity
Blackbird Labs is committed to diversity in its workforce and is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, sex, gender expression or identity, sexual orientation or any other basis protected by applicable law. Blackbird will also consider for employment qualified applicants with criminal histories in a manner consistent with applicable law. For US applicants, you may view the Know Your Rights notice here . Additionally, Blackbird participates in the E-Verify program .
Join us and find out what the best work of your career could look like here at Blackbird.
- ...Senior / Staff / Principal Fullstack Engineer Location: Onsite New York (5 days onsite AND hybrid options) We have multiple startups interested in talent. Here is a generic summary. Instead of a perfect job description, we present talented individuals to companies and...SeniorFull time
$155k - $225k
...and technology to transform how people plan and book travel. About The Role We’re looking for a seasoned Senior / Staff Full Stack Engineer to help build Fora’s fast growing suite of AI-driven products and infrastructure. Our ideal candidate is someone who...SeniorFull timePart timeWork at officeWork from home$200k - $250k
...Senior / Staff Full Stack Engineer Our client is an early-stage, high-growth startup modernizing immigration infrastructure through software. They are building a platform that streamlines and automates complex visa and legal workflows for global talent and companies...SeniorH1bVisa sponsorship- ...Role We're building a dedicated growth engineering function at the org level, and this role... ...on targeting logic and layout Ship fullstack features end to end — writing frontend UI... ...within your domain without waiting for senior sign-off or a fully specced ticket Coordinate...SuggestedFull time
- ...-11Contact: Mike LaTulipEmail: ****@*****.*** Fullstack EngineerLocation: New York, NY (Remote Optional)About the Opportunity... ...ecosystems. We are looking for a veteran Full Stack Engineer to spearhead the technical evolution of our web platforms, ensuring...SuggestedContract workRemote workFlexible hours
- Flagler Health is building the clinical operating system for modern musculoskeletal care. We partner with MSK provider groups and specialty clinics to help them grow, operate more efficiently, and deliver better longitudinal care across patient acquisition, clinical...SeniorFull time
- ...are low latency, high throughput, live under constant load, and break if you get them wrong. What You’ll Do As a Senior Staff Frontend Engineer, you’ll remain deeply hands-on while shaping the technical direction of our frontend platform. You’ll own the hardest...SeniorFull timeImmediate start
$176k - $242k
...logistics, and operations to deliver reliable, cost-efficient service at scale. About the role We’re looking for a Senior or Staff Frontend Engineer to help build and scale Picnic’s real-time logistics and operations platforms. This role is ideal for someone who...SeniorFull timeTemporary workWork at officeLocal areaImmediate startFlexible hours- Company Descriptionðð¼ We're Nagarro. We are a digital product engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work at scale — across all devices and digital mediums, and our people exist...Senior
$170k - $200k
...Senior FullStack Engineer Location: Hybrid in NYC (3 day in-office requirement) Qualifications: ~7+ years of professional experience as a software engineer with frontend and backend development. ~3+ years of hands-on experience with the React framework. ~2...SeniorOngoing contractFull timeWork at office$170k - $200k
...advertising. For over 25 years, we’ve connected brands with consumers at the moment they express commercial intent beyond legacy search engines.Today, our Native Search solutions are exclusively integrated across next-generation platforms where discovery happens, including...SeniorSummer workWork at office- ...Job Opportunity We are seeking a skilled frontend-focused full-stack engineer to join our team in developing groundbreaking AI-powered product experiences. The ideal candidate will have a strong background in working closely with product, design, and machine learning...Senior
- ...Senior / Staff / Principal Frontend Engineer Location: Onsite New York We have multiple startups interested in talent. Here is a generic summary. Instead of a perfect job description, we present talented individuals to companies and allow them to share how that talent...SeniorFull time
$182.75k - $278.5k
...help change mental healthcare for the better. The Work Fullstack at Headway means end-to-end ownership. You’re building... ...not just shipping speed. You proactively improve your team's engineering velocity - whether that's refining tooling, improving automation...SeniorFull timeFlexible hoursShift work$250k
Sr. to Staff Full Stack Engineer - Consumer Marketplace Startup depending on your preference you could spend your time anywhere from 90% on backend to 90% on front end New York, NY (you can work from home 1x/week) The company's product is a p2p rental marketplace which...SeniorPermanent employmentFull timeWork from homeFlexible hours$225k - $300k
...stadium, or throughout your everyday life, CLEAR unlocks the magic of frictionless experiences. We're looking for Senior Fullstack Software Engineers to help build the next generation of CLEAR's identity platform. Beyond verifying identity, we're creating a secure, networked...SeniorFull timeCasual workWork at officeFlexible hours- ...Senior Staff EngineerWe're Nagarro. We are a digital product engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work at scale — across all devices and digital mediums, and our people exist...Senior
$208k - $349.66k
...Senior Staff EngineerNew York CityAt Braze, we have found our people. We're a genuinely approachable, exceptionally kind, and intensely... ...the moment it's delivered to a user's device. As a Senior Staff Engineer, you will be the technical anchor for the division, helping engineering...SeniorWork at officeFlexible hours$163.1k - $215k
...using Algolia, help create a new Growth platform, mentor software engineers, and introduce best practices.A few projects we’ve worked on... ...with JavaScript, TypeScript, React, HTML/CSS - this role is fullstack, we expect engineers to be able to ship across the stackNice to...SeniorWork at officeRemote workFlexible hours$225k - $300k
...at the airport, stadium, or throughout your everyday life, CLEAR unlocks the magic of frictionless experiences.As a Senior Fullstack Software Engineer on CLEAR’s Healthcare team, you will build and scale secure, interoperable identity and data solutions that connect patients...SeniorCasual workWork at officeFlexible hours- ...Senior Software Engineer Vendelux is building the category-defining platform for event marketing intelligence. Events are one of the largest and most impactful marketing channels, yet historically one of the least measurable. Vendelux brings transparency and performance...SeniorFull timeWork at office
$140k - $170k
...Senior Fullstack Engineer New York, NY • Full-time · In-Person About the Job We're building the AI-native compliance platform that will redefine the industry. Comp AI launched in April 2025 and crossed $1.2M ARR with a team of ten. We automate security and compliance...SeniorFull timeRemote workRelocationFlexible hoursNight shift- QAVION GROUP sucht einen erfahrenen Fullstack Engineer zur Design, Entwicklung und Implementierung von Microservices sowie Webanwendungen. Du entwickelst Frontends, gestaltest relationalen sowie NoSQL-Datenbanken und übernimmst umfassende Testautomatisierung inklusive...SeniorRemote job
$164.2k - $225.7k
...world's best data and AI infrastructure platform so our customers can use deep data insights to improve their business. Founded by engineers — and customer obsessed — we leap at every opportunity to solve technical challenges, from designing next-generation product...SeniorLocal areaWorldwide$123.69k - $170.08k
...Corning Incorporated is hiring a Senior Staff Engineer, Controls in Corning, NY . This is a full‑time onsite role that typically works Monday‑Friday, 40 hours per week, with flexibility as needed to support project objectives. Travel averages approximately 50%...SeniorFull timeFor contractorsRelocation packageMonday to Friday$150k - $190k
...committed to economic inclusion. Find out how TripleLift raises up the programmatic ecosystem at triplelift.com. Overview The Senior Staff Engineer plays a critical role in driving the performance, scalability, and intelligence of TripleLift’s Exchange — the real-time...SeniorFull timeFlexible hours$150k - $200k
...Senior Software Engineer Biograph is looking for senior software engineers to help us scale a data driven approach to preventative care. Our small and nimble engineering team thrives on ownership and autonomy. We're building foundational systems with an eye toward...SeniorWork at office3 days per week$286.2k - $326.7k
...Senior Distinguished Engineer, AI Compute (Remote Eligible)At Capital One, we are creating responsible and reliable AI systems, changing banking for good. For years, Capital One has been an industry leader in using machine learning to create real-time, personalized customer...SeniorFull timePart timeLocal areaRemote work- ...Job Description Job Description JOB DESCRIPTION The Role Are you an engineer interested in contributing to an experienced team that is rebuilding the healthcare experience for the modern consumer? You will get to: Work with team leads to architect key...SeniorRemote workWork from homeHome office
- Reference: BH-124963Senior / Staff Frontend Engineer - AI-Native Banking PlatformLocation: New York, Denver, AtlantaFunction: Frontend EngineeringThe... ...approved in real time. My client is assembling a small, senior team with startup-level autonomy. If you want your frontend...SeniorWork at officeWorldwide
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior/Staff Fullstack Engineer. Be the first to apply!
- project engineer assistant project manager New York, NY
- engineering aide New York, NY
- staff design engineer New York, NY
- senior staff engineer New York, NY
- assistant engineer New York, NY
- software engineer staff New York, NY
- staff engineer New York, NY
- assistant civil engineer New York, NY
- staff security engineer New York, NY
- assistant engineering manager New York, NY



