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 Lever Test 11
$190k - $240k
...hidden fees or compounding interest. Consumer Growth Experience Engineering (CGX) builds the platforms and end‑to‑end experiences that... ...JavaScript/TypeScript. You have a total of 4+ years of experience as a software engineer. You are experienced in designing, developing, and...SuggestedRemote workFlexible hours$125k - $175k
A health and performance technology company is seeking a Software Engineer II to join their Business Systems team in Boston. In this role, you will design and maintain internal tools, ensuring the scalability and reliability of business operations. Candidates should have...Suggested$120k - $140k
...in the promise and power of diversity. We value independent and critical thinking. We're looking for an experienced Software Engineer to join our team. In this role, you'll help design and develop backend systems, implement compelling user experiences, work on...Suggested$155k - $175k
...Full-Stack or Frontend Software Engineer Title of Role: Full-Stack or Frontend Software Engineer Location: Boston, MA, hybrid Company Stage of Funding: Venture-Backed — Healthcare Office Type: Hybrid Salary: $155K–$175K Company Description We're representing...SuggestedWork at officeLocal areaFlexible hours- ...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 - $190k
...human and artificial intelligence to lead the charge. As an AI software company who deploys its inventions directly into the facilities... ...ordinary robots to achieve extraordinary things. As a platform engineer, your work lies at the center of this challenge, orchestrating...Work at office- ...with the clients. Currently, we are looking for entry-level software programmers, IT enthusiasts, and Java developers. We welcome... ...Bachelor's degree or Master's degree in Computer Science, Computer Engineering, Electrical Engineering, Information Systems, IT. Highly...H1bRemote work
- ...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...Immediate start
- ...Square, with a collaborative, light-filled office and a provision for hybrid work schedules. We are committed to diversifying our engineering team because we know that diverse backgrounds and perspectives yield better solutions for our customers. Join our development...Work at office
- ...time and resources to explore new ideas, but always rooted in engineering best practices. As a result, we can innovate rapidly to produce... ...We sweat the details when it comes to UX. As a Full-Stack Software Engineer II, you will build AI-centric web applications in TypeScript...Work at officeWorldwide
- ...we disrupt the home security space and relentlessly pursue our mission of keeping Every Home Secure. AS A SENIOR FULL STACK SOFTWARE ENGINEER YOU WILL: Build solutions for our e-commerce platform including design, development, testing, and deployment Use the...Work at office
$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$100k - $145k
...Full-Stack Software Engineer Location: Boston, MA Open to Remote in EST or CST Locations About Us Clasp is a venture-backed, mission-driven startup transforming access to education and career pathways. We’re revolutionizing how employers attract and retain...Remote workWorldwideFlexible 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
$90.16k - $167.44k
...Join our Customer identity & access management engineering team as a full-stack engineer focused on CIAM using IBM Security Verify. You... ...senior guidance. Required Qualifications: ~1-2 years of software development experience (internships/co-ops included) or strong...Temporary workInternshipLocal areaFlexible hours$100k - $150k
...understand how those features work and contribute to different parts of the platform. What skills do I need? ~3-5+ years of software engineering experience, ideally at a SaaS enterprise software company. ~ Strong proficiency in TypeScript is required. ~...Temporary workWork at officeLocal areaFlexible hours3 days per week$98.4k - $164k
...Job Description Summary Job Description Summary Full-Stack Software Engineer & Science (Virtual Sensing) - Decentralized Grid Operations We’re building the foundation for next-generation decentralized grid operations—distributing intelligence to the resilient...Contract workWork experience placementRemote workRelocation package- Blink Charging Inc in Boston, Massachusetts is hiring Software Engineering Interns to work on their Energy Management System, optimizing EV charging operations. Ideal candidates are computer science students knowledgeable in TypeScript and React. Interns will develop features...Internship
- I did my part and supported the Regular Toilet is looking for a Software Engineer to join their team in Somerville, MA. In this hybrid role, you will contribute to exciting projects that improve the efficiency and quality of frontline operations using cutting-edge technology...Flexible hours
- A technology consulting firm is seeking a Fullstack Developer who will own core product surfaces end-to-end, spanning architecture and... ...include designing end-to-end systems, developing frontend and backend solutions, and upholding engineering quality standards. #J-18808-LjbffrRemote work
- ...Job Title: Full stack Software Engineer (React Native & Mobile Applications) Location: Dallas TX -Remote Employment Type: Contract About BigRio: BigRio is a remote-based, technology consulting firm with headquarters in Boston, MA. We deliver solutions...Contract workRemote work
$90k - $190k
...greater than the sum of its parts — a Tutor Intelligence. As an AI software company that deploys its inventions directly into the... ...deliver the future of automation. The Role As a Full Stack Software Engineer at Tutor Intelligence, you’ll design, build, and deploy user interfaces...Work at office- ...Skills Hands-on experience .. Visa Types Green Card, US Citiz.. Client: Asset Management firm Job Title: AI Fullstack Engineer Location: Boston, MA (Onsite 3 days/week) Duration: 9 months contract Local candidates only...Contract workWork experience placementLocal area3 days per week
$15k - $30k
...AI. We are an AI-native SaaS company that builds cutting‑edge software to help clients track and optimize their research, development,... ...are looking for an experienced and passionate AI-native Software Engineer to join our data science team. This is fundamentally a software...Immediate start- 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...
- ...Full Stack AI Software Engineer - CO-OP GenHealth.ai is transforming how healthcare works through cutting-edge generative AI and automation. We're building the world's leading Large Medical Model (LMM) to make healthcare smarter, faster, and more efficient. We're looking...
- A leading health technology company in Boston is seeking a Software Engineer III to develop full-stack solutions that enhance health management. You will work in a collaborative environment with tools like GitHub and Google Cloud, focus on implementing features that bridge...
$145k - $180k
...Fullstack Engineer We're looking for a Fullstack Engineer to work on LangSmith, our commercial AI observability and evals platform product... ..., and well-tested code 2+ years of experience in software engineering working on complex platform products Fullstack...Work at officeFlexible hours$165k - $180k
...products offered by a variety of different vendors. As a Senior Fullstack Engineer for the e-commerce PlatformTeam, you will help advance our... ...You have a history of contributing to reliable and scalable software projects Experience with one or more of the following is a...Work experience placementWork at office3 days per week$100k - $140k
...our employees. OVERVIEW We're hiring a Senior Full-Stack Engineer to turn our AI and machine learning capabilities into real products... ...Science, Engineering, or a related field. You've integrated software with AI/ML services, data APIs, or model endpoints — as a...Local areaRelocation package
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