Assembly
Senior Software Engineer
New York
Get past the screening software and onto a recruiter's desk
hirly rewrites your resume for this job — matching the keywords and skills in the posting, moving your most relevant experience to the top, and writing a cover letter to fit. About 30 seconds.
- Keywords matched to this posting
- Fit score before you apply
- Cover letter included
Matched against 2.6M live jobs from 210,000+ employers in 200+ countries.
Tailor my resume for this job →Apply from your AI assistant
Connect hirly to Claude or ChatGPT and ask it to apply to this job. hirly tailors your resume, fills the employer’s form and asks before sending.
Some employer sites stop an application at a CAPTCHA or sign-in and hand it back with a link. Applying needs a paid plan. Works with any assistant that supports MCP.
hirly's read of this role
- Role family
- Engineering
- Seniority
- Senior
- Stated salary
- $145,000 – $190,000 per year
- Country
- US
- Work mode
- On-site / unstated
- First seen by hirly
- 28 Sept 2026
Derived automatically from the posting. Upload your resume above to see how the role scores against it.
the posting
Learn about us and our openings here: https://www.assembly.com/jobs
About the role
As a senior software engineer you will report to the CTO and be a core member of our engineering and product team. In this role you’ll lead complex technical projects, mentor junior team members, improve velocity through better process, shape the engineering roadmap, and help define our engineering culture. We will compensate you well, invest deeply in your development, and do everything we can to make sure this is the single best work experience of your life.
What you'll do
You'll design and build full stack features. You'll be working on scaling and enhancing our web platform, our flagship product. This involves overseeing the libraries we use, managing the component/design system architecture, and building the most robust testable features.
You'll be an owner. You'll work with EPD (engineering/product/design) leads team to help shape the roadmap. You’ll also be responsible for writing technical documentation, setting up infrastructure, and organizing engineering tasks.
You'll balance the short and long term. While knowing the importance of shipping quickly you also know how to craft thoughtful long-term technical strategy. You know when to address tech debt and when to improve infrastructure and processes (testing, code reviews, CI/CD).
You’ll make the engineering team more effective. You’ll help us implement better processes, refine our interview process, and help define our engineering culture.
You'll help build the team. The first 10 members of an engineering team dictate the next 100. You'll help interview and recruit more talented engineers.
You'll learn about startups . Aside from your core work, you'll have the opportunity to get involved in other areas - marketing, growth, ops, etc.
Who you are
You're experienced. You have 4+ years experience working on complex web applications built with modern tools and a proven track record as a lead developer. Familiarity with our tech stack is a bonus!
You're passionate about crafting software. Whether it's the thrilling moment when a scalable system design sparks excitement, or the deep satisfaction of engineering a seamless, robust frontend component, every line of code is a canvas for your creativity. You take pride in building systems that are as elegant as they are efficient, turning complex challenges into works of art that you love to share and showcase.
You design thoughtful solutions. You approach challenges by exploring multiple avenues, carefully weighing edge cases and dependencies to deliver the optimal user experience. You excel at articulating your ideas, ensuring that you remain focused on what truly matters: understanding customer needs.
You love to collaborate, discuss and debate. You engage in respectful, constructive debates—challenging ideas without being confrontational. You work collaboratively to weigh trade-offs and find balanced solutions, clearly explaining your reasoning when opinions differ and valuing the insights of your teammates.
You're hardworking. You understand that building a category-defining company requires people that work smart and that also work hard.
You love working in person. We're convinced that building a strong culture happens face-to-face, and we're looking for people who thrive in highly collaborative, in-person environments.
Tech
React, Typescript, Golang
Libraries: Tailwind, MUI, Redux (rtk-query), AmplifyJS
Infra (AWS): DynamoDB, Lambda, Cognito, Cloudwatch, Cloudformation, SQS
Listed on hirly, a job board. hirly is not the employer: Assembly is hiring for this role.
Similar jobs
- Senior Software EngineerNewmark · New York, NY, United StatesFirst seen today
- Software Engineer IIIAmerican Express · Phoenix, AZ, United StatesFirst seen today
- Sr Software Engineer - Streaming Data PlatformUber · Sunnyvale, CA, United States; San Francisco, CA, United States; Seattle, WA, United StatesFirst seen today
- Senior Software EngineerSAIC · El Segundo, CA, United StatesFirst seen today
- Senior Platform Software EngineerOracle · Santa Clara, CA, United StatesFirst seen today
Browse similar roles
Want this one?
Upload your resume and hirly rewrites it for this job and writes the cover letter — in about thirty seconds, before you sign up.
Tailor my resume for this job