Senior Full Stack Developer
$100k - $125kFoundation Finance Company, LLC
Senior Full Stack Developer Description & Duties: The Senior Full Stack Developer is a highly skilled individual who excels in several areas of focus, including Front-End, Middleware, and Back-End areas of development. Senior Full Stack Developers are crucial in helping lead the efforts for developing and designing front-end web architectures, that are driven by the middleware created to retrieve information from one of the several back-end sources that provide the lifeblood of our business.
This role will excel in leadership of our evolving technology stack, which currently includes JavaScript, GraphQL, Jest, Kafka, MERN (MongoDB, Express, React, Node.js), NestJS, Redis, SQL, and TypeScript, and demonstrate proficient skills in test-driven development, RESTful APIs, collaboration, communication, security best practices, and performance optimization. Pay Range
USD $100,000.00 - USD $125,000.00 /Yr. Essential Duties and Responsibilities included the following. Other duties may be assigned.
Lead design and development of front-end web architectures driven by middleware to retrieve information from back-end sources.
Lead development of software in our technology stack, which is constantly evolving but currently includes JavaScript, GraphQL, Jest, Kafka, MERN (MongoDB, Express, React, Node.js), NestJS, Redis, SQL, and TypeScript.
Help grow the development practice via coding, code reviewing, acting as a technical bridge on the team, as well as being able to dig into some of the more complex areas of the system when knowledge is lacking in house.
Lead team in test-driven development and proper unit testing.
Collaborate with cross-functional teams to define, design, and ship new features.
Maintain knowledge of security best practices in web development to safeguard customer and company data.
Scour and evaluate new technologies and contribute to the overall product roadmaps of both internal and external 3rd party systems.
Design performance optimized and scalable web applications.
Utilize agile methodologies and scrum planning tools like Jira to help the development team meet its sprint goal.
Other duties as assigned by management. Must be able to come to work promptly and regularly. Must be able to take direction and work well with others. Must be able to work under the stress of deadlines. Must be able to concentrate and perform accurately. Must be able to react to change productively.
Minimum Qualifications: Bachelor’s degree in Computer Science, Engineering or similar relevant field. 5 years of experience in a development role OR combination of education and experience in front end, middleware, or backend development. Any technical certifications from Amazon, Atlassian, Google, Microsoft, or in an essential duty mentioned above are a plus.
To perform this job successfully, an individual should have knowledge of Word Processing software; Spreadsheet software and Design software. About Foundation Finance: Foundation Finance Company (FFC), a Great Place to Work® certified company since 2017, is a fast-growing consumer finance company working with home improvement contractors across the U.S. to drive sales through flexible, customer-focused financing options.
Available Benefits: · Day-one Health Benefits (medical, dental, vision, and flexible spending options like HSA or FSA accounts).
· 401(k) with company match enrollment on day-one.
· Paid, Sick and Volunteer Time Off
· Paid Parental Leave Options
· Employer Paid Life and Disability
· Wellbeing on Demand Program
· Flexible Work Environment with a casual dress code *Employment status (full-time or part-time) may affect eligibility for certain benefits. Some benefits become available only after a specified period of employment. Please refer to our Benefits page for details.
Office environment with significant time spent sitting, typing and talking on the telephone.
Foundation Finance Company provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state or local laws. This policy applies to all terms and conditions of employment, including recruiting, hiring, placement, promotion, termination, layoff, recall, transfer, leaves of absence, compensation and training.
If you reside in the state of Colorado, please click on the following link to review our benefits: Foundation Finance Benefits
These benefits are designed to support our employees in their professional growth, health, and overall well-being. Eligibility, coverage details, and enrollment processes will be provided during the onboarding process. At Foundation Finance Company, we are committed to fostering a positive work environment where employees can thrive both personally and professionally. Remote Work Disclaimer Foundation Finance Company LLC requires that remote employees must reside in one of the following states to be considered for any of our remote positions: AL, AR, AZ, CO, FL, GA, IL, IN, KY, LA, MD, MI, MN, MO, MS, NC, NJ, NV, NY, OH, OK, OR, SC, TN, TX, UT, VA, WA, and WI.
Vacancy posted 1 day ago
Similar jobs that could be interesting for youBased on the Senior Full Stack Developer in Seattle, WA vacancy
- The following requirement is open with our client. Title: Senior Full Stack Developer Location: Bellevue,WA 98004 Pay Rate: $55/hr - $68/hr on W2 Duration: 3 Months Relevant Experience (in Yrs.): 10 yrs. Build end to end full stack web Apps, integrating UIUX, backend services...Senior
$110.7k - $218.3k
...remaining hands-on in development. As a Senior Consultant, Technical Transformation, you... ...business growth. This role combines full stack development, architecture leadership, and... ...practical technical solutions, mentoring developers, and driving quality across enterprise implementations...SeniorLocal areaVisa sponsorship- Boeing is seeking a mid-career React Native Developer for the Boeing Grading Application, based in Seattle, WA. You will build native iOS apps and web components, collaborating with DevOps to enhance CI/CD and deployment automation, while contributing to performance and...SeniorContract work
- Ethereum Technologies is seeking a Full Stack Developer to join our professional services team in Washington. You will collaborate with cross-functional groups, translate customer needs into scalable solutions, and guide migrations using our platform. You will work in...Senior
$70 - $75 per hour
...Nice to have skills Detailed Job Description Build end to end full stack web Apps, integrating UIUX, backend services, and customer... ...responsibilities you would expect the Subcon to shoulder and execute Develop Customer 360 Customer Journey web interfaces Build APIs and...SeniorContract work- Cloud Analytics Technologies, LLC in Washington is seeking a seasoned Full Stack Developer to join a fast-paced professional services team. You will collaborate with multiple software development teams to translate customer needs and design onboarding paths into our platform...Senior
- A global technology company based in Bellevue, WA is seeking an experienced Full Stack Developer. You will contribute to the design and deployment of scalable web applications, working closely with cross-functional teams. Ideal candidates should have over 5 years in web...SeniorHourly payContract work
- Quantum Technologies. LLC is seeking a seasoned Full Stack Developer in Washington to join a fast-paced professional services team. You will translate customer needs, help migrate and solve platform problems, and guide development teams through architecture and tooling...Senior
- ...Senior Full Stack Software EngineerWe are seeking a highly skilled Senior Full Stack Software Engineer with a strong background in software... ...experience shipping productions to production.ResponsibilitiesDesign, develop, ship, and maintain backend, full-stack platform solutions,...SeniorRemote work
$158.5k - $237.7k
...continue to innovate and build new ways to foster friendship and connection. That’s where you come in!Role summaryWe are seeking a Senior Full Stack Engineer II to join our Digital Innovations team and help bring our most beloved brands to digital channels. In this role, you...SeniorLocal area- ...and sets the foundation for delivering our full suite of capabilities. Comtech implements... ...improvements (8 years) • Mentoring developers in process and technology. • Leading projects... ...Information TechnologyExperience level: Mid-Senior LevelIndustry: Information Technology And...Senior
- ...Senior EngineerIn 2025, we launched Reunion PWA, a software solution that helps developers comply with prevailing wage and apprenticeship (PWA) requirements to unlock the full value of clean energy tax credits. Reunion... ...experience as a Full Stack Engineer.Proficiency in...SeniorApprenticeshipWork experience placementImmediate startRemote workHome office
$182.75k - $278.5k
...scaling their practice in record time. Our Stack Languages: TypeScript, Python 3... ...code generation, operational automation, or developer tooling. You bring a builder's mindset:... ...re building. Time Off: 13 holidays, a full week off in December, and flexible PTO....SeniorFlexible hoursShift work$160k - $300k
...creating a workplace where everyone feels welcome and can bring their full self to work. We have a huge, ambitious vision to rewire... ...engineering teams depend on during their day-to-day workflow Full Stack coding, 60% back end and 40% front end Mentor other engineers...SeniorWork at officeLocal areaRemote workFlexible hours$159k - $278.25k
...to operate seamlessly, covering areas such as: Global Payroll: Developing the systems for calculating, filing, and processing payroll... ...backend capabilities and user-facing features, working across the stack to make them shine Collaborate closely with PMs and designers to...SeniorWork at office3 days per week- ...strategies and experimentation needs into reliable technical solutions, and contribute to technical direction and architecture decisions.- Develop data and insights capabilities that enable actionable analysis of user behavior, growth performance, campaign effectiveness, and...Senior
$152k - $241.5k
...robotics, and more. The DGX Cloud team builds and operates the AI infrastructure that fuels this progress. We’re looking for a Senior Full-Stack Software Engineer to join the AI Hub team within the DGX Cloud AI Infrastructure organization. The AI Hub team accelerates AI...SeniorFull time$180k - $270k
...DOWorking on end-to-end lifecycle application development across the full stack (roughly 30% frontend and 70% backend, vary quarter by quarter... ...to use AI to generate over 70% of your code.Designing, developing and maintaining customer-facing and internal-facing web applications...SeniorWork at officeFlexible hours- Salesforce is seeking a senior software engineer to join a team that builds scalable B2C experiences on a large distributed platform.... ...ll collaborate with architects and SMEs to refine requirements, develop stories, data mappings and test plans, and ensure reliable...Senior
$148.5k - $260.1k
...of AI, and you are the future of Salesforce.The ExperienceAs a Full Stack Engineer on MeshMesh, you will build features end-to-end, from... ...maintain services and APIs that power the MeshMesh platform.Develop customer-facing features across the full stack.Collaborate with...SeniorFull timeRemote work$224k - $356.5k
...robotics, and more. The DGX Cloud team builds and operates the AI infrastructure that fuels this progress.We’re looking for a Senior Full-Stack Software Engineer to join the AI Hub team within the DGX Cloud AI Infrastructure organization. The AI Hub team accelerates AI...SeniorFull time$160k - $190k
...which skills are moving, where a team needs help - and to make those answers clear, fast, and trustworthy. It's work that spans the full stack: crafting polished, responsive dashboard UIs on the frontend, and the aggregation, metrics, and query systems that power them on...SeniorWork at office3 days per week$180k - $225k
...an engineer on the team, you'll apply your front-end-leaning, full-stack skillset to the customer challenges that matter most for growing... ...Kotlin, Java, Go.Excellent collaboration skills.About the Role:As a Senior Software Development Engineer on the High Value Send Experience...SeniorFull timeWork experience placementWork at officeWorldwideFlexible hours$121.5k - $145.5k
...San Francisco Bay Area, CA; Dallas, TX; Salt Lake City, UT; Seattle, WA; and Portland, MEAbout the Team/RoleWe are seeking a Full-stack Senior Software Engineer with deep expertise in backend development to contribute to the WEX Beyond Fuel and Expense Management initiative...SeniorFull timeRemote workFlexible hours- Tata Consultancy Services Limited in Bellevue, WA is seeking an experienced Engineer to design and build distributed systems in C#. You will work with .NET, Azure, Cosmos, and data services, contributing to scalable solutions. The ideal candidate has a Bachelor's in Computer...Senior
- Valiant Technologies LLC in Washington is seeking a seasoned Full Stack Developer to join our professional services team. You’ll translate customer needs, guide architecture, and collaborate with multiple engineering squads to deliver scalable cloud-based applications...Senior
$162.5k - $260.4k
...at Scale We are looking for a seasoned Senior Staff Fullstack Engineer (Sr. Consultant... ...who brings strong system design judgment, full-stack product engineering depth, and the... ...auditability, and enterprise system integration. Develop AI-native capabilities using OpenAI,...SeniorFull timeWork experience placementWork at officeLocal area- Tata Consultancy Services in Bellevue, WA seeks an accomplished senior software engineer with 10+ years of C# experience to design and build distributed systems in .NET on Azure. You will leverage Azure services, Cosmos DB, Kusto and SQL Server for scalable solutions,...Senior
$55 - $68 per hour
Senior Full Stack Developer is needed in Bellevue, WA to design, build, and operate end-to-end web applications that integrate UI/UX, backend services, and customer data across Azure and Databricks. You will collaborate across teams to deliver scalable, secure software...SeniorHourly payContract work- Artifintech is hiring a Full Stack Developer in Washington to join our professional services team. You will collaborate with client teams to translate needs into scalable platform solutions and help with onboarding paths to our platform. You will work across Cloud, Databases...Senior
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Senior Full Stack Developer. Be the first to apply!
Related searches
- full time engineer Seattle, WA
- senior full stack web developer Seattle, WA
- full stack developer remote Seattle, WA
- full stack / python developer (remote) Seattle, WA
- c# .net full stack developer Seattle, WA
- java full stack angular developer Seattle, WA
- lead full stack java developer Seattle, WA
- remote .net full stack web developer Seattle, WA
- mean stack developer Seattle, WA
- full stack engineer Seattle, WA




