Senior Full Stack Engineer
Better Impact
Role Description
We're looking for a senior full stack engineer with strong architectural sensibilities to take ownership of our global platform services. These are the foundational systems that sit beneath every product we build: single sign-on, control plane, and data plane services including the aggregation layer and data hub infrastructure.
Much of this work lives with our CTO today. This role exists to take it over, so the platform layer has a dedicated owner and our CTO can turn his focus to new product. You are not joining to assist. You are here to own the layer that everything else depends on.
This is a high-leverage role. The services you own are consumed by every product in our portfolio, so your decisions have outsized impact on reliability, developer experience, and our ability to scale.
What You'll Do
- Own core platform services: Design, build, and maintain SSO and auth services, profile services, and data aggregation layers that serve as the backbone for all products.
- Build across the stack: Write backend APIs and services, then build the frontend interfaces that consume them.
- Drive architectural decisions: Evaluate trade-offs, document decisions, and guide the evolution of our service architecture.
- Build for scale and reliability: Design systems that handle growth gracefully with appropriate observability, error handling, and recovery patterns.
- Build for a multi-region footprint: Make sound decisions about data residency and data movement across the US, Canada, the UK, and Australia.
- Ship production code: This isn't a whiteboard-only role. You'll write code daily and own features end to end.
- Collaborate across teams: Work with product engineers who consume your services to understand their needs and provide clean, well-documented APIs.
Qualifications
- 7+ years of professional software engineering experience.
- Strong full stack capabilities. You're comfortable owning features from database to UI.
- Production experience with Node.js/TypeScript.
- Modern React development (hooks, state management, component architecture).
- Solid understanding of relational databases (PostgreSQL/MySQL) and query optimization.
- Experience with OpenSearch, Elasticsearch, or similar search infrastructure.
- Working knowledge of AWS fundamentals: RDS, S3, ECS, SQS, and similar managed services.
- Hands-on experience building or operating identity and auth systems (OAuth, SAML, SSO federation), since you'll own SSO from day one.
- Track record of owning services in production: monitoring, debugging, incident response.
- Clear technical communication. You can explain complex systems to both engineers and non-engineers.
Nice to Have
- Backend experience with PHP/Laravel.
- Experience with .NET.
- Experience with event-driven architectures and async job processing.
- Prior experience as a tech lead or staff engineer.
Benefits
- Medical, dental & vision insurance (after 90 days).
- 401(k) (after 90 days).
- Unlimited vacation + 9 paid holidays.
- Paid parental leave.
- Competitive comp package.
$30 - $90 per hour
...As a Senior Full Stack Engineer, you will play a pivotal role in shaping the future of AI systems by leveraging your technical expertise to develop and maintain robust web applications. Your contributions will directly impact how models learn and perform, utilizing real...SeniorRemote jobHourly payContract work$145k - $200k
Role Description We are looking for a full stack engineer for our Enterprise Scale team. Our team is responsible for the stability of Scribe’s core functionalities and, as such, those responsibilities span across several technologies. We are looking for a curious person...SeniorFull time- Role Description As a Senior Full Stack Engineer on our Platform Extensions team, you will build and evolve integrations that connect platforms like WordPress, WooCommerce, and Webflow with partner ecosystems such as Google and others. You’ll work across backend and frontend...SeniorFull timeRemote work
- Role Description NexaFlow is seeking a Senior Full-Stack Engineer to develop a proof-of-concept code review tool powered by large language models (LLMs). ~Design and implement a prototype tool that leverages LLMs to automatically review pull requests. ~Integrate LLM...SeniorFull timeContract workFreelanceRemote work
- Role Description The Senior Data Engineer plays a critical role in designing, building, and maintaining robust data infrastructure to support business intelligence, analytics, and machine learning initiatives. This position requires expertise in managing large-scale data...SeniorFull timeRemote work
- Role Description The Sr. Full Stack Engineer on the Software Platform team is responsible for day-to-day delivery of software products, writing... ...code and reviewing the code of others on the team. As a Senior Engineer, you are the driving force behind implementation and...SeniorFull time
- ...AttainX Inc. is seeking a Senior Full Stack Developer for remote work, with options to be based in Alaska. The role focuses on backend development, system integration, and delivering highly interactive applications for government clients. You will design, implement,...SeniorRemote work
- Role Description You will join a small team of experienced engineers and contribute to a diverse range of internal tools and customer-facing... .... ~Payout automations with banking partners. Tech Stack ~React ~Typescript ~Golang ~Postgres ~Docker ~...SeniorFull timeImmediate startRemote work
- Role Description We’re looking for a Senior Full-Stack Engineer who thrives across the stack and refuses to be boxed in. You move fluidly between frameworks - Next.js to Hono APIs to SvelteKit to Postgres - without friction or hand-holding. AI tools are part of your daily...SeniorFull time
- Role Description We're looking for a Senior Agentic Platform Engineer who has hands-on experience building with AI-native tooling (Kiro, Cursor, Claude... ...programs. Benefits ~All our positions are Remote and are available as Full Time Employment or B2B Contracts....SeniorFull timeRemote work
- Role Description This is a remote position. We are hiring a Senior Full-Stack Engineer who wants to operate in a high-trust, high-ownership environment. This is not a role for someone looking to simply execute tickets—you will be expected to take problems from ambiguity...SeniorFull timeRemote work
$166.6k - $208.3k
...Mercury, we are committed to crafting an exceptional banking experience for startups. Our product engineering group is growing and we’re looking to hire senior full-stack engineers. We’re a team of pragmatic, product-minded engineers motivated by the desire to create lovable...SeniorFull time$187k - $271.92k
Role Description We are looking for a Full Stack Engineer who will bring technical know-how and enthusiasm to our team. You will report to one of our Engineering Managers and will be responsible for supporting features and architecture designed to maintain our users’ confidence...SeniorFull time$189.59k - $246k
...collaborating with BNY to connect them with exceptional professionals for this role. The Bank of New York Mellon seeks Senior Vice President, Full-Stack Engineer in Jersey City, NJ, to consult with internal business groups to provide high-level application software...SeniorTemporary workRemote work- ...in real time as agents run. It's one of the most complex surfaces we've ever built, and we are hiring for a highly experienced Senior Engineer to own this end-end, working within our AI Workforce Function. Role Responsibilities ~Design and own the interface for building...SeniorFull time
- Role Description We are seeking C++ Engineers with at least 10 years of experience who can lead by example, take ownership of complex systems, and help scale our platform. You should be capable of working independently and collaborate in a fast-paced, high-accountability...SeniorFull timeRemote work
$180k - $250k
...hire exceptional talent to join our teams in building the open source security infrastructure stack for the AI era. We’re looking for an exceptional Senior Full Stack Engineer to help us build, optimize, and expand the foundation of the platform. ~Develop and maintain...SeniorFull time- Role Description We are looking for a Senior Full Stack Engineer to own production reliability and troubleshooting on a high-scale live hiring events platform serving enterprise clients. You will diagnose and resolve issues across distributed backend systems built on Java...SeniorFull timeRemote workFlexible hours
- Role Description Shuru is looking for a Senior / Mid Engineer to build polished AI product experiences, use cases, examples, and demo applications for new AI capabilities. This role is for someone who can understand newly released AI features, work across frontend and backend...SeniorFull timeRemote work
- Role Description This is a remote position. Supercharge Your Career as a Senior Full-Stack Engineer at Technoidentity! At Technoidentity, we're a Data & AI product engineering company with over 15 years of expertise in building durable digital products, intelligent...SeniorFull timeRemote work
- Role Description ~Design, develop, and maintain scalable backend services using NestJS. ~Architect and implement robust RESTful APIs for mobile applications. ~Lead the development and enhancement of custom Buildfire plugins. ~Ensure seamless integration between...SeniorFull time
- Role Description As a Senior Software Engineer, you will be a technical leader driving initiatives that... ...large-scale web applications. ~Core Stack: Strong expertise in TypeScript, React,... ..., tracking, and telemetry systems. ~Full-Stack Familiarity: Experience working across...SeniorFull timeRemote work
- Role Description We are looking for a seasoned Senior Full Stack Engineer to join a high-impact contract engagement with one of our premier international clients. This strategic initiative focuses on a massive modernization effort, migrating complex enterprise data systems...SeniorContract workRemote work
$95k - $200k
...you want; it builds a plan, previews it, and executes across the timeline. We've built the early AI pipeline. Now we need a full-stack engineer to own the entire product experience on top of it: the chat-driven interface, timeline integration, streaming UI for AI plan...SeniorRemote workHome office$175k
Role Description We're looking for a highly skilled Senior Full Stack Engineer who is excited about building in an AI native, agentic world. This is not a traditional frontend or backend role! It’s for engineers who: ~Use AI coding tools (Claude Code, Cursor, Copilot...SeniorFull timeWork from homeFlexible hours- ...to develop high quality applications based on requirements and designs. Qualifications ~5+ years of experience in a Full Stack Software Engineering role. ~Strong knowledge of Java 21, preferably in a microservices environment. ~Solid experience with Object-...SeniorFull time
- ...live events, promoters, and brands with the tools to drive more sales and streams around their most important moments. As a full stack engineer, writing code and building beautiful user experiences is just one part of your job. You'll also talk to users, get involved...SeniorFull timeSummer workWork at officeRemote work
- Role Description We’re looking for a Full-Stack Engineer to join our GTM (Go To Market) Activation team - a cross-functional group focused on increasing signup, integration, trial usage, and time-to-value for new users. Your job is to work at the intersection of engineering...SeniorFull timeRemote work
- Role Description We are looking for a software engineer with the following qualifications: ~5+ years of professional software engineering experience. ~Advanced English is required. ~Successful completion of a four-year college degree is required. ~Strong experience...SeniorFull timeRemote work
- Role Description We’re seeking a Senior Full Stack Engineer to help drive the evolution of our platform—building robust web applications, APIs, and data systems that power our products. This role is a global opportunity that requires a 4 hour overlap with US Mountain Time...SeniorFull timeRemote work
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Full Stack Engineer. Be the first to apply!
- full stack react developer Remote
- junior full-stack web developer Remote
- full stack developer contract Remote
- java full stack angular developer Remote
- lead full stack java developer Remote
- full stack java developer Remote
- full stack developer Remote
- c# .net full stack developer Remote
- mid level full stack developer Remote
- senior full stack developer Remote




















