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Top Full-Stack Engineer Jobs in Seattle

197+ Job Results
5 Days Ago
Seattle, WA
Hybrid
4,800 Employees
3-5 Years of Experience
4,800 Employees
3-5 Years of Experience
Fintech • Mobile • Software • Financial Services
Seeking a highly motivated and experienced Senior Fullstack Engineer (Contract) to join the Account Creation team at a next-generation financial services company. Responsible for full stack development, front-end and back-end development, architecture and design, testing and quality assurance, continuous improvement, code review and mentorship, and documentation.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
5 Days Ago
Seattle, WA
Remote
10,000 Employees
115K-175K Annually
5-7 Years of Experience
10,000 Employees
115K-175K Annually
5-7 Years of Experience
Cloud • Information Technology • Sales • Security • Cybersecurity
Seeking a Full Stack Engineer with 5-7 years of experience in software development for SaaS environments. Must have expertise in backend and frontend coding, UI technologies, high-level programming languages, automation, and database technologies. Strong understanding of object-oriented programming, distributed systems, and scalability is required. Bonus points for knowledge of IoT/ICS systems, Linux, cloud services, and endpoint security.
8 Days Ago
Seattle, WA
Hybrid
4,800 Employees
3-5 Years of Experience
4,800 Employees
3-5 Years of Experience
Fintech • Mobile • Software • Financial Services
Seeking a highly motivated and experienced Senior Fullstack Engineer to join our Account Creation team. Responsible for designing and implementing end-to-end solutions, both front-end and back-end. Strong sense of ownership, self-starter, and mentor. Collaborate with cross-functional teams to deliver high-quality software applications.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
2 Days Ago
Seattle, WA
Remote
12,000 Employees
139K-245K Annually
5-7 Years of Experience
12,000 Employees
139K-245K Annually
5-7 Years of Experience
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
Work as a Front End / Full Stack Developer at TIDAL, focusing on building and delivering product features for artists. Collaborate with the frontend and backend teams to empower musicians with tools for their artistic journey. Implement technical improvements and performance optimizations.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
14 Hours Ago
Seattle, WA
Remote
5,600 Employees
1-3 Years of Experience
5,600 Employees
1-3 Years of Experience
Fintech • Payments
Design and build intuitive features for Radar users to mitigate fraud attacks. Collaborate with various functions at Stripe to bring value to customers and improve engineering efficiency. Mentor junior engineers to help them grow and contribute to large-scale feature development.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+30 More
4 Days Ago
Seattle, WA
161 Employees
150K-170K Annually
3-5 Years of Experience
161 Employees
150K-170K Annually
3-5 Years of Experience
eCommerce • Software • Analytics • Business Intelligence • Consulting
Design and implement stable and performant SaaS products utilizing both frontend and backend technologies such as C#, Java, and Node.js.
Top Benefits:
401-K
401-K Matching
Company Equity
+25 More
11 Days Ago
Seattle, WA
Remote
350 Employees
7+ Years of Experience
350 Employees
7+ Years of Experience
Artificial Intelligence • Legal Tech • Professional Services • Software
Ontra is seeking a Staff Software Engineer with expertise in Ruby on Rails. The role involves tackling complex technical challenges, architecting robust and scalable systems, and collaborating with cross-functional teams. The ideal candidate should have a passion for innovation and a results-driven approach.
Top Benefits:
401-K
Commuter Benefits
Company Equity
+39 More
2 Days Ago
Seattle, WA
Remote
12,000 Employees
139K-245K Annually
5-7 Years of Experience
12,000 Employees
139K-245K Annually
5-7 Years of Experience
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
Design, build, and maintain backend services for Square Health & Beauty's online scheduling software. Collaborate with engineers and product managers, ship reliable software, and advocate for continuous investments in developer productivity and code quality.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
2 Days Ago
Seattle, WA
Remote
12,000 Employees
139K-245K Annually
3-5 Years of Experience
12,000 Employees
139K-245K Annually
3-5 Years of Experience
eCommerce • Fintech • Hardware • Payments • Software • Financial Services
As a Senior Full-Stack Engineer, you will be responsible for designing, building, and owning sophisticated underwriting services to expand access to credit for Square's sellers. You will work on backend systems with contributions to the frontend, collaborating with product, data science, and other teams to innovate new lending products.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
2 Days Ago
Seattle, WA
Remote
12,000 Employees
139K-245K Annually
5-7 Years of Experience
12,000 Employees
139K-245K Annually
5-7 Years of Experience
eCommerce • Fintech • Hardware • Payments • Software • Financial Services
Design, build, and maintain backend services for Square Appointments. Advocate for developer productivity and code quality. Collaborate with engineers and product managers to create software experiences. Ship reliable software through continuous integration and test automation.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
2 Days Ago
Seattle, WA
800 Employees
64K-73K Annually
1-3 Years of Experience
800 Employees
64K-73K Annually
1-3 Years of Experience
Social Impact
Support and develop web-based software application systems, add features and support existing systems, ensure stable and maintainable code, collaborate with other departments.
2 Days Ago
Seattle, WA
Remote
12,000 Employees
168K-297K Annually
7+ Years of Experience
12,000 Employees
168K-297K Annually
7+ Years of Experience
eCommerce • Fintech • Hardware • Payments • Software • Financial Services
As a Senior Software Engineer for the Orders Core team at Square, you will play a crucial role in building scalable and resilient backend API solutions for first and third-party customers. You will lead the design and development of Orders API solutions, collaborate with cross-functional teams, and foster a positive team culture. Square aims to empower sellers through innovative omnichannel solutions and financial services tools.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
2 Days Ago
Seattle, WA
Remote
12,000 Employees
168K-297K Annually
7+ Years of Experience
12,000 Employees
168K-297K Annually
7+ Years of Experience
Blockchain • eCommerce • Fintech • Payments • Software • Financial Services • Cryptocurrency
Senior Software Engineer role at Square focused on building scalable and resilient backend API solutions for empowering sellers to succeed in their business lifecycle. Responsible for leading the design and development of Orders API solutions used by first and third-party developers.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
2 Days Ago
Seattle, WA
1,400 Employees
196K-294K Annually
7+ Years of Experience
1,400 Employees
196K-294K Annually
7+ Years of Experience
Aerospace • Artificial Intelligence • Hardware • Robotics • Security • Software • Defense
Anduril Industries is seeking a Staff Software Engineer to lead high-impact projects, provide technical leadership, design and develop complex distributed software services, work on a modern tech stack involving Go services and React web apps, and collaborate with cross-functional teams to deliver results effectively.
Top Benefits:
401-K
Adoption Assistance
Child Care Benefits
+56 More
2 Days Ago
Seattle, WA
Remote
12,000 Employees
168K-297K Annually
7+ Years of Experience
12,000 Employees
168K-297K Annually
7+ Years of Experience
eCommerce • Fintech • Hardware • Payments • Software • Financial Services
Square Bank Accounts team is looking for a Senior Software Engineer to lead the development of new backend systems for Bank Accounts offerings. Responsibilities include ensuring instant access to sales revenue, providing banking tools, integrating with cash flow tools, and improving the customer experience. Full-stack background with experience in Java, Kotlin, and Ruby is required.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
5 Days Ago
Seattle, WA
Remote
1,400 Employees
138K-252K Annually
3-5 Years of Experience
1,400 Employees
138K-252K Annually
3-5 Years of Experience
Aerospace • Artificial Intelligence • Hardware • Robotics • Security • Software • Defense
Anduril Industries is seeking a Senior Full Stack Software Engineer to work on building out the software ecosystem supporting an electronic warfare platform. Responsibilities include architecting new features end-to-end, testing web app features, turning requirements into web application features, and collaborating with developers across the stack.
Top Benefits:
401-K
Adoption Assistance
Child Care Benefits
+56 More
2 Days Ago
Seattle, WA
Remote
Hybrid
12,000 Employees
168K-297K Annually
7+ Years of Experience
12,000 Employees
168K-297K Annually
7+ Years of Experience
eCommerce • Fintech • Hardware • Payments • Software • Financial Services
Square Bank Accounts team is looking for a Senior Software Engineer to work on building and improving Checking and Savings products used by merchants. Responsibilities include managing business finances, providing banking tools, integrating with other cash flow tools, and developing backend systems at scale.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
11 Days Ago
Seattle, WA
Remote
5,600 Employees
3-5 Years of Experience
5,600 Employees
3-5 Years of Experience
Fintech • Payments
As a full stack engineer working on Link, you'll join a team designing and building merchant experiences, consumer-facing UIs, and full-stack products. You'll collaborate with stakeholders, craft new products, and develop against roadmaps to impact millions of users worldwide.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+30 More
3 Days Ago
Seattle, WA
120 Employees
140K-210K Annually
7+ Years of Experience
120 Employees
140K-210K Annually
7+ Years of Experience
Artificial Intelligence • Computer Vision • Hardware • Machine Learning • Robotics • Software • Agriculture
Work as a Fullstack/Backend Software Engineer at Carbon Robotics to design and build AI and robotics products, focusing on backend services and related frontend features. Collaborate with teams to build labeling, monitoring, and data analysis services. Responsible for building and troubleshooting web and cloud applications to support machine learning model training and remote monitoring for fleet of Robots.
Top Benefits:
401-K
Company Equity
Company Outings
+37 More
4 Days Ago
Seattle, WA
Remote
4,800 Employees
155K-178K Annually
7+ Years of Experience
4,800 Employees
155K-178K Annually
7+ Years of Experience
Fintech • Mobile • Software • Financial Services
Research, design, and develop computer and network software. Update and enhance existing software capabilities. Work on full-stack development including front-end and back-end technologies. Collaborate with engineering and product stakeholders to build financial products and tools. Mentor other engineers, support technical culture, and help grow the team.
Top Benefits:
401-K
Child Care Benefits
Commuter Benefits
+45 More
4 Days Ago
Seattle, WA
Remote
20,000 Employees
137K-233K Annually
3-5 Years of Experience
20,000 Employees
137K-233K Annually
3-5 Years of Experience
Artificial Intelligence • Cloud • HR Tech • Information Technology • Productivity • Software • Automation
Build high-quality, clean, scalable, and reusable code, work with product owners to understand requirements, mentor colleagues, contribute to new products and features
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+42 More
3 Days Ago
Seattle, WA
Remote
2,500 Employees
169K-285K Annually
7+ Years of Experience
2,500 Employees
169K-285K Annually
7+ Years of Experience
Cloud • Consumer Web • Productivity • Software • App development • Automation • Data Privacy
Seeking a Senior Backend Product Software Engineer to lead the development of new products for collaboration and distributed work at Dropbox. Responsibilities include articulating a technical vision, writing code, collaborating with cross-functional teams, and improving team and company culture. Requires 8+ years of software engineering experience and expertise in building user-facing software and supporting systems.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
2 Days Ago
Seattle, WA
Hybrid
5,500 Employees
97K-171K Annually
7+ Years of Experience
5,500 Employees
97K-171K Annually
7+ Years of Experience
Artificial Intelligence • Cloud • Machine Learning • Mobile • Software • Virtual Reality • App development
Lead, design, and implement large-scale front-end applications to protect user safety. Architect and deploy infrastructure to handle at scale. Guide junior engineers, collaborate with stakeholders, and operate highly-available systems at scale.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
5 Days Ago
Seattle, WA
Remote
12,000 Employees
168K-297K Annually
5-7 Years of Experience
12,000 Employees
168K-297K Annually
5-7 Years of Experience
eCommerce • Fintech • Hardware • Payments • Software • Financial Services
Square is seeking a Senior Backend Software Engineer for the Payment Pricing & Cost Platform team. This role involves designing scalable systems related to pricing and costs, collaborating with cross-functional teams, and contributing to Square's global payments strategy. The ideal candidate should have 5+ years of experience, be curious, and interested in creating highly available, scalable data systems.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+55 More
11 Days Ago
Seattle, WA
Remote
5,600 Employees
5-7 Years of Experience
5,600 Employees
5-7 Years of Experience
Fintech • Payments
Join the Stripe Apps team as a Full Stack Engineer to work on critical business efforts, build high-polish user experiences, and collaborate with stakeholders to develop new products and features impacting millions of users worldwide.
Top Benefits:
401-K
401-K Matching
Adoption Assistance
+30 More
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