Fullstack Software Engineer
Lever Test 11
Job Title: Senior Full Stack Software Engineer (React, MongoDB, TypeScript) Location: [Remote / Hybrid / On-site – specify] Employment Type: Full-Time Experience Level: Senior (5+ years) About the Role We are seeking a highly skilled Senior Full Stack Software Engineer to design, build, and scale modern web applications using React, MongoDB, and TypeScript. You will play a critical role in shaping architecture, mentoring developers, and delivering high-quality, performant software solutions. This role requires both deep technical expertise and strong collaboration skills. Key Responsibilities Full Stack Development Design and develop scalable, high-performance web applications using React (frontend) and Node.js (backend). Build and maintain RESTful and/or GraphQL APIs. Develop reusable, modular, and maintainable components using TypeScript across the stack. Implement responsive UI/UX designs with a focus on usability and performance. Backend & Database Design, implement, and optimize MongoDB schemas and queries. Ensure data integrity, security, and performance in distributed systems. Build robust backend services with proper error handling, logging, and monitoring. Architecture & System Design Lead system design discussions and contribute to architectural decisions. Optimize applications for maximum speed and scalability. Evaluate and introduce new technologies and best practices. Code Quality & Best Practices Write clean, testable, and well-documented code. Conduct code reviews and enforce engineering standards. Implement automated testing (unit, integration, end-to-end). Collaboration & Leadership Work closely with product managers, designers, and other engineers. Mentor junior and mid-level developers. Contribute to agile processes, sprint planning, and technical roadmaps. Required Qualifications 5+ years of professional experience in full stack development. Strong proficiency in: React (hooks, state management, component architecture) TypeScript (advanced typing, generics, interfaces) Node.js (Express or similar frameworks) MongoDB (schema design, aggregation pipelines, indexing) Experience building and consuming RESTful or GraphQL APIs. Solid understanding of HTML, CSS, and modern frontend tooling. Familiarity with version control systems (Git). Experience with cloud platforms (AWS, Azure, or GCP). Strong problem-solving skills and attention to detail. Preferred Qualifications Experience with Next.js or other React frameworks. Familiarity with microservices architecture. Experience with Docker and container orchestration (Kubernetes). Knowledge of CI/CD pipelines and DevOps practices. Exposure to testing frameworks (Jest, Cypress, Playwright). Experience with real-time technologies (WebSockets, event-driven systems). Soft Skills Excellent communication and collaboration abilities. Strong sense of ownership and accountability. Ability to work independently and lead initiatives. Mentorship and team leadership experience. What We Offer Competitive salary and equity (if applicable) Flexible work environment (remote-friendly) Health, dental, and vision insurance Generous PTO and paid holidays Professional development opportunities Collaborative and innovative team culture Success Metrics Delivery of high-quality features on time System reliability and performance improvements Code quality and maintainability Positive impact on team productivity and mentorship #J-18808-Ljbffr
- ...the company | Full Stack Software Engineer | Cambridge, MA | Full-time | ONSITE the company is building physical AI for science, and the world’s largest commercial dataset on real-world scientific execution. We are looking for a full stack engineer who can work at the...SuggestedFull time
- ...Full Stack Engineer Duration: Long Term Contract Location: Durham, NC | Westlake, TX | Boston, MA | Smithfield, RI | Merrimack,... ...contribute to develop and support digital capabilities. As a Software Engineer, you will be an integral member of a dynamic team building...SuggestedLong term contract
$90k - $210k
...and Seattle, WA with a history of fielding cutting‑edge technology. MORSE boasts a specially selected team of scientists, engineers, and software developers to deliver best‑in‑class technical solutions that solve difficult multidisciplinary problems faced by the US National...SuggestedFull time- ...helps organizations design, build, and deliver enterprise-class software and analytics platforms. Leveraging expertise in AI,... ...growing and have immediate opportunities for Full Stack Software Engineers to work with our premier clients. In this role, you will be responsible...SuggestedImmediate start
- ...Senior Full-Stack Engineer As a Senior Full-Stack Engineer at Cyvl, you will play a leading role in delivering intuitive, performant, and scalable applications for our customers. You'll be responsible for designing and building across the stack, from elegant, component...SuggestedImmediate startFlexible hours
- ...environment that values curiosity, innovation, and a bit of fun along the way. What We're Looking For We're looking for a Full-Stack Engineer to help build and scale Remark's platform. You'll work across the stack, touching both the backend and frontend, to create a...Work at officeWork from homeFlexible hours2 days per week3 days per week
$124.9k - $228.9k
...from identity to measurement to bidding, to deliver unified campaign experiences that span screens, formats, and moments.Our Software Engineers are end-to-end owners who participate in designing, building, and delivering data-focused products for our stakeholders. What...Full timeTemporary workWorldwide£45k - £65k per year
...'ve changed that. We’re Neutreeno, an emissions-to-performance platform, born out of the University of Cambridge's Department of Engineering. We help companies with supply chains and production processes turn emissions data into operational insight, the kind that cuts costs...Work at officeImmediate startRemote work3 days per week$105k
...KS, MA, MD, MI, MN, NC, NJ, NY, OH, RI, SC, SD, TX, UT, VA, WA, WI What You Will Be Doing: We are recruiting for a Full-Stack Software Engineer to join our team. In this role, you will be focusing on front and back end development working on our custom built data storage...Work experience placementRemote workWorldwide- A tech company is seeking an experienced Fullstack Developer to design and develop scalable cloud-native applications. The ideal candidate will have strong proficiency in TypeScript and Python, with hands-on experience in AWS services. Responsibilities include developing...
$107.45k - $199.55k
...anywhere you want to go. We are seeking a Senior .NET Full Stack Engineer to build and deliver scalable, enterprise-grade digital... .... Required Qualifications 8+ years of experience in full-stack software development in enterprise environments. Strong hands-on experience...Full timeTemporary workLocal areaFlexible hours- ...collaborating with Verisk to connect them with exceptional professionals for this role. Description We are hiring a Senior Software Engineer with deep expertise in AI/ML engineering and data-intensive systems to join our Catastrophic and Risk Solutions team. You will...Work at officeFlexible hours
$150k - $200k
...Senior Software Engineer (Backend) Title of Role: Senior Software Engineer (Backend) Location: Boston, hybrid Company Stage of Funding: Venture-Backed Office Type: Hybrid Salary: $150K–$200K Company Description We're representing a dynamic company...Work at office$125k - $175k
...empowers members to perform at a higher level through a deeper understanding of their bodies and daily lives. WHOOP is hiring a Software Engineer II (Backend, Health Records) to help build the systems that enable secure, scalable ingestion and utilization of health data....Full timeWork at officeRelocation$152.5k - $219.2k
...team builds and operates the time-series database and supporting software components that store and serve the telemetry behind Cisco... ...infrastructure in C++, take on real responsibility, and learn from the engineers around them. Your Impact As a member of the Time Series...Full timeTemporary workLocal areaFlexible hours$170k - $190k
...Senior Full-Stack Engineer As a Senior Full-Stack Engineer on the Growth pod, you'll own end-to-end implementation of features that... ...productivity tool, but as a genuine lever for building better software faster. Here's what you'll be doing: Build and ship features...Flexible hours- ...the future of cybersecurity, we’d love to meet you. As a Fullstack Engineer at Oneleet, you'll work across our entire stack to ship features... ...to the UI Qualifications: ~5+ years of fullstack software development experience with expertise in Go and JavaScript/TypeScript...Local areaImmediate startRemote work
- ...have built and brought to market a tax-smart investment strategy engine, portfolio trading and rebalancing, and advisor transition... ...portfolios across diverse product mixes and client segments. Software Engineer III 55ip’s Quantitative R&D team is looking for a software...
- Pryzm Job Opportunity Pryzm is a startup revolutionizing government contracting, reshaping the way that companies and governments work together. Founded by alumni of top Defense and Artificial Intelligence firms (including Palantir and Lockheed Martin), backed by preeminent...Full timeRelocationRelocation package
- ...Senior Fullstack Software Developer We are looking for a Senior Fullstack Software Developer to join us working on a suite of products... ...them fully searchable in real time. There is some serious engineering behind making all of that work and we want to find people that...Work at office
- ...Bachelor’s or master’s degree in a technology related field (e.g., Engineering, Computer Science, etc.) required. ~8+ years of demonstrable... ...(Java 1.8+) ~ Strong programming, debugging and secure software development skills (e.g., Veracode, Sonar etc.) ~ Good knowledge...Contract work
- A technology firm in New York City is seeking a Senior Fullstack Engineer to build foundational product features driving user acquisition and growth. The role involves full-stack development using React, TypeScript, Python, and Go, and requires a strong product intuition...
- ...code quality, unit testing, and source control organization REQUIRED EXPERIENCE ~ BS/BA in a relevant field (Mathematics, Engineering or Computer Science) ~5-12 years of relevant work experience; financial services industry experience preferred ~ Full-stack web...Work experience placement
- ...Sr. Full Stack Developer SS&C Intralinks is seeking a highly skilled and experienced Senior Full Stack Software Engineer to design, develop, and maintain robust and scalable web applications. This role involves contributing to all layers of our software stack, ensuring...Ongoing contract
$135k - $200k
...customers including ClassPass, Capital One, Cisco, and Rippling, just to name a few. Our focus is on building software with care and craftsmanship and our engineering blog posts offer a taste of that. Backed by top investors such as Matrix Partners, Battery Ventures,...Full timeVisa sponsorship- ...financial institutions to enhance efficiency, security, and customer satisfaction. We are seeking a talented and motivated Senior Software Engineer to join our dynamic Engineering Team and contribute to our mission of transforming financial services through technology....Work at officeRemote work
$77.1k - $123.3k
...that helps millions of learners improve their lives and achieve their dreams through education. What you'll do here: As a Software Engineer, you will deliver a world-class experience for learners and instructors on our Cengage Learning Platforms (CLP). Working on a...Live inLocal areaWorldwide$112k - $141k
...Software Development Engineer II At CarGurus, our mission is to give people the power to reach their destination. We started as a small team of developers determined to bring trust and transparency to car shopping. Since then, our history of innovation and go-to-market...Flexible hours- ...Full Stack Engineer Dynamic Work schedule - This is 5 days on site a month- in the same week then the remainder of the month is working... ...fast-paced environment ~ Working Knowledge of API management software such as Apigee ~ IDE’s - Spring Tool Suite, and Eclipse,...Temporary workWork at officeWork from home
$159k - $207k
...for autonomous vehicles. This is the system that executes the software and neural networks that make our vehicles autonomous.... ...team is part of CORE. We work at the intersection of software engineering, machine learning, sensors, and hardware compute platforms to...Work at office2 days per week
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