Senior Full-Stack Engineer: Build Scalable Systems
Harmonic
Harmonic, the startup discovery engine, is hiring a senior full-stack engineer in New York. You will own customer-facing features end-to-end and design scalable, observable systems that power discovery for investors and operators. You have 5-8 years building full-stack products at scale, and a track record of shipping high-quality releases. You thrive turning ambiguity into clarity, balancing technical tradeoffs while delivering customer value. #J-18808-Ljbffr Harmonic
- Propel, Inc. is hiring a Senior Fullstack Engineer to build consumer-scale products with real ownership. You... ...work across mobile apps, backend systems, internal tools, and new product lines... ...with Product and Design to deliver scalable, user-first experiences. #J-18808-Ljbffr...SeniorRemote job
- Unknown is building shared backend platforms and services operating at significant scale. We collaborate across engineering, data science, product, design, and business teams, using... ...designs, builds, and maintains scalable backend systems, participates in architecture discussions...Senior
- Huckleberry Labs is a parenting app trusted by millions, seeking a senior visual designer to own the visual identity across web,... ...collaborate with the Creative Director and partners to build a scalable brand system centered on typography and cohesive visuals that resonate...Senior
- We are hiring for one of our clients, seeking a Backend Engineer to work on a Full-Time basis. The role involves designing, building, and maintaining scalable backend systems to support high-traffic applications. You will collaborate with cross-functional teams to deliver...SeniorFull time
- Courier Health is seeking a Senior Software Engineer, Frontend in New York City to lead frontend architecture and a growing design system. You’ll shape how patients, clinicians, and... ...-sciences engagement platform by building scalable components from the ground up. You’...SeniorWork at office
- Intuit Inc. is seeking senior software engineers in New York to drive end-to-end technology initiatives and architect scalable systems. You will integrate AI, build durable software solutions, and collaborate with global teams across time zones to deliver impactful customer...Senior
- Datadog is seeking distributed systems engineers in New York, NY to design, implement, and run the core platforms that process real-time, huge-scale event streams. You will build fault-tolerant, scalable data pipelines and own components of our service in a fast-growing...Senior
$160k - $300k
A leading technology firm is seeking a Backend Engineer with 5+ years of experience to develop scalable systems and optimize performance. The ideal candidate will have expertise in backend development, proficiency in Python, Java, or Go, and a strong background in cloud...- ...Integrate LLMs into production systems using APIs, function calling, and... ...AI teams to deliver secure and scalable solutions.Responsibilities5+ years of software engineering experience Strong C# / .NET and Azure expertise Experience building production APIs and backend...Senior
$175k - $225k
...Founding Senior Full-Stack Engineer (AI & Growth Infrastructure) Location: New... ...operate and grow. The company is building an AI-powered platform... ...and building the core systems powering the platform. You'... ...Be Working On Building scalable data infrastructure capable...SeniorFull timeImmediate start$190k - $250k
...Senior / Staff Full Stack Engineer – Applied AI New York City $190,000–$250,000... ...expanding its engineering team to build intelligent products that... ...AI agents, orchestration systems and intelligent automation... .... Improving latency, scalability and reliability across AI-...SeniorFull timeWork at office$180k - $225k
...growing HealthTech company, are hiring a Senior Full Stack Engineer to join their team In New York City.... ...using React and TypeScript. Build scalable backend services with Node.js, TypeScript... ...and connect the platform with EMR systems. Monitor system performance and...Senior- We are building a next-generation API Review Agent platform... ...Our platform enables engineers to validate, review,... ...GitHub, GitLab, CI/CD systems, IDEs, and developer... ...to drive reliability, scalability, security, and... ...Requirements Core Tech Stack: Strong proficiency in...Senior
$175k - $225k
...Senior Full Stack Engineer About Fonzi AI We're a well-funded, fast-growing... ...platform. Our vision is to build an AI-powered recruiting marketplace... ...balance between speed and scalability that defines successful... ...Build robust backend systems using TypeScript and Node.js...SeniorWork at officeImmediate startFlexible hours3 days per week$200k - $275k
...We’re continuing to build out our NYC engineering team and are looking... ...ownership across the stack. Responsibilities... ...throughput data pipelines and scalable FastAPI services.... ...latency across the system: caching, model selection... ...who combines strong full‑stack fundamentals...SeniorFlexible hours$106.9k - $147k
...Excellence (CoE) is building enterprise capabilities... ...provides operational engineering support, technical... ...seeking a highly motivated Senior Full-Stack Software Engineer to... ...operational support, systems integration, DevOps,... ....Reliable and scalable integrations and data...SeniorFull timeTemporary workApprenticeshipLive inImmediate start$160k - $220k
Senior Full-Stack Qlik Sense Engineer Location New York Business Area Engineering... ...objectives into robust, scalable technical architectures... ...Predict.App Automation & System Integration: Design and... ...or ISO 27001.Experience building analytics for issue tracking...SeniorTemporary workFor contractorsWork experience placementWork at office- ...We are currently seeking a Senior Full-Stack Engineer to play a key role in shaping... ...with back-office systems and operations - such as trade... ...first approach, leveraging scalable, resilient, and secure cloud... ...Enterprise Data Platform: We are building a next-generation data...Senior
$120k - $200k
...the global financial system, we influence nearly 2... ...member for the role of Senior Vice President to join our Middle Office Engineering Platform team. This role... ...platforms.Build scalable pipelines to handle growing... ...performance, and market factors.Full timePosting Date: 2026...SeniorTemporary workWork at officeWorldwideFlexible hours- ...developers face when building video: video encoding... ...conference for video engineers in the world. We’re... ...the Role As a Senior Full Stack Engineer at Mux, you... ...will build and manage scalable and highly available... ...engineers that love both systems and application-level...SeniorTemporary workWork at officeFlexible hours
- ...team member for the role of Senior Director, Full-Stack Engineering to join our Data... ...develop, test, and maintain scalable full-stack applications using... ..., and distributed systems.Knowledge of software architecture... ...QualificationsExperience building and deploying AI-enabled...SeniorWorldwideFlexible hours
$102k - $250k
Senior Vice President, Full-Stack EngineerAt BNY, our culture allows us to run our... ...of the global financial system, we influence nearly 20%... ...Vice President, Full-Stack Engineer to join our Equities... ...Development: Design and build flexible, scalable trade-flow software capable...SeniorTemporary workWork experience placementWorldwideFlexible hoursShift work$95k - $209k
...with a passion for building robust and scalable design systems? Do you thrive on creating... ...'re looking for a Senior Front-End Developer... ...with a modern tech stack to build and... ...systems.Manage the full lifecycle of design... ...product, and other engineering teams to translate...SeniorTemporary workWorldwideFlexible hours- Justworks in New York City is seeking a Senior Frontend Engineer to build and scale frontend web apps for both internal and public use. You will collaborate with product and design to deliver on-brand experiences and raise the bar for UI quality. You’ll own implementing...SeniorWork at office
- ...features. You will collaborate with product, infra, and data teams to architect and build highly scalable, low-latency systems, designing critical APIs, evolving infrastructure, mentoring engineers, and driving decisions that impact millions of users. The role requires 5+...Senior
$343.4k - $392k
...Senior Staff Full-Stack Engineer As a Senior Staff Engineer at Capital One, you will... ...actively recruiting to keep building our community. Senior Staff... ...authoritative expert on non-functional system characteristics, such as performance, scalability and operability Continue...SeniorFull timePart timeLocal area$185k - $225k
...firm dedicated to helping companies build exceptional teams. We partner... ...clients and candidates. Title : Senior Full Stack Engineer – Core UX Location : New York,... ...and platform improvements. Build scalable backend systems and APIs that support user-facing functionality...SeniorFull timeWork at office- ...per week We are seeking a senior software engineer with AI expertise to help design... ...role sits within our core systems team and partners closely... ..., and product teams to build scalable, secure, and highly available... ...program.Our BenefitsWe provide a full package of benefits for...SeniorLocal area3 days per week
- Hebbia, an AI platform for investors, is seeking a Backend Software Engineer on the Growth and Data team. You will build and maintain backend systems, architect robust APIs, and deliver scalable services that power personalized data views and integrations. Collaborating...Senior
$179.4k - $204.7k
Do you love building and pioneering in the technology space?... ...customer needs. We are seeking Full-stack Software Engineers who are passionate about... ...Towers, which build the scalable platforms and data driven... ...HRTech innovations to build systems used on an enterprise-...Full timePart timeInternshipH1bLocal area
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