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Senior Full Stack Software Engineer

Alloy is where you belong!

Alloy helps solve the identity risk problem for companies that offer financial products by enabling them to outpace fraud and confidently serve more people around the world. Over 600 of the world’s largest financial institutions and fintechs turn to Alloy to take control of fraud, credit, and compliance risk, and grow with the clearest picture of their customers.

Through our values: Be Bold, Get Scrappy, Collaborate, and Celebrate Our Differences, we are creating a workplace where you can grow, thrive, and belong. See how we’ve been continuously recognized and named one of Inc. Magazine’s Best WorkplacesForbes America’s Best Startup EmployersBest Fintech to Work for by American Banker, year after year.

Check out our investors and read more about us here.

JOB TITLE & LOCATION:
Senior Full Stack Software Engineer
New York City

What you'll be doing

  • Leverage a strong CS foundation to design and implement performant algorithms for a variety of applications such as graph traversal, among others.
  • Build, test, and ship modern customer-facing features and frontend software products using React, TypeScript, Redux, React-Query, JSS tools like Styled-Components, and other industry-standard libraries. Champion best practices across our frontend product and promote high-quality code across our teams.
  • Craft performant backend server features using Node.js and Python to be consumed by our dashboard and clients, following REST and other best practices.
  • Adopt a client/server and asynchronous Pub/Sub queue-based architectures using Redis as the inter-process message queue.
  • Utilize non-relational data stores such as ElasticSearch, OpenSearch, DynamoDB, and Redis to perform efficient and responsive search queries across large datasets. Know when to index and denormalize data in different structures to achieve near-instant searching on customer data, providing the user with a responsive Alloy experience.
  • Write efficient SQL queries to read and write data from our relational Postgres database hosted in AWS clusters, upholding our performance standards.
  • Produce high-quality, well-tested code to meet the needs of our clients using modern automated unit & integration testing libraries such as Mocha, Jest, Vitest & Supertest. Establish strong testing patterns and best practices, and guide other engineers to raise coverage and quality of tests.
  • Own and tech-lead projects across our product, from planning and design phases to release and monitoring. Write thorough Engineering Requirement Documents (ERDs) to lay out solutions and generate buy-in from other engineering stakeholders across the organization.
  • Provide technical mentorship and review the code of junior and mid-level engineers, fostering a culture of learning and growth within our rapidly expanding team. Participate in and guide some of our cross-cutting engineering guilds, helping to create a culture of technical inclusivity and collaboration.
  • Collaborate with other software engineers to build internal tools and React components pushing for adoption across teams.
  • Engage with designers and product managers to turn our product and technical vision into a tangible deliverable, keeping user needs as your driving principle, and provide a technical point of view that assertively informs deadlines and requirements.
  • Iterate quickly based on product and client feedback, maintaining a user-centric perspective across every feature and line of code you write.

Who we’re looking for

  • Bachelor’s degree in Engineering, or any closely related field.
  • 1 or more years of work experience as a Software Engineer, or a closely related position.

Wage Range
Salary: $161,000/year to $217,000/year

We're a lean team, so your impact will be felt immediately, and opportunities will grow as the company scales up. If this all sounds like a good fit for you, why not join us?

At Alloy, we strive to attract and retain talent with a total rewards program that is competitive with other organizations of our size and stage. We are committed to ensuring each new team member has what they need to be successful in their role with a balanced range of compensation, equity, perks, and benefits. We actively share our philosophy with employees, with the goal of fostering openness and clarity. Finally, we work to administer our philosophy and drive consistency in order to promote equity and monitor the fairness of outcomes.

Benefits and Perks 

  • Hybrid work environment: employees are expected to work Tuesdays and Thursdays from our HQ in Union Square, Manhattan. Tasty lunches catered from a variety of local restaurants and frequent employee-organized cultural events contribute to our positive office energy. On Monday/Wednesday/Friday most employees Zoom into work from home while some take advantage of the quieter office.
  • Unlimited PTO and flexible work policy
  • Employee stock options
  • Medical, dental, vision plans with HSA (monthly employer contribution) and FSA options
  • 401k with 100% match up to 4% of annual employee compensation 
  • Eligible new parents receive 16 weeks of paid parental leave 
  • Home office stipend for new employees
  • Annual Learning & Development annual stipend
  • Well-being benefits include access to ClassPass, OneMedical, and Spring Health 

How to apply

Apply right here! You've found the application!

Alloy is proud to be an equal-opportunity workplace and employer. We’re committed to equal opportunity regardless of race, color, ancestry, religion, gender, gender identity, parental or pregnancy status, national origin, sexual orientation, age, citizenship, marital status, disability, or veteran status. We are committed to an inclusive interview experience and provide reasonable accommodations to applicants with visible and invisible disabilities. We encourage applicants to share needed accommodations with their recruiter.

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CEO of Alloy
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Joel Beal
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Average salary estimate

$189000 / YEARLY (est.)
min
max
$161000K
$217000K

If an employer mentions a salary or salary range on their job, we display it as an "Employer Estimate". If a job has no salary data, Rise displays an estimate if available.

What You Should Know About Senior Full Stack Software Engineer, Alloy

Are you ready to take your career to the next level as a Senior Full Stack Software Engineer with Alloy in the vibrant heart of New York City? At Alloy, we're not just solving the identity risk problem for financial institutions and fintechs; we're uniquely positioned to help these companies confidently serve their customers while combating fraud. You'll find an empowering environment here, where our core values—Be Bold, Get Scrappy, Collaborate, and Celebrate Our Differences—guide everything we do. Imagine using your strong computer science foundation to design cutting-edge algorithms, creating attractive frontend features with modern technologies like React and TypeScript, and crafting server-side solutions in Node.js and Python. You will be an integral part of our team, owning projects from design to release and leading other engineers through mentorship. Your expertise in leveraging databases such as Postgres, ElasticSearch, and Redis will be crucial in ensuring we deliver responsive, high-performance applications. If you're passionate about coding, enjoy collaborating with designers and product managers, and are eager to make a real impact in a fast-paced startup, Alloy might just be your perfect fit. Here, you'll enjoy a hybrid work environment, unlimited PTO, stock options, and a culture of innovation and inclusivity that keeps us at the forefront of the fintech revolution. So, why not join us and help shape the future of financial technology?

Frequently Asked Questions (FAQs) for Senior Full Stack Software Engineer Role at Alloy
What are the main responsibilities of a Senior Full Stack Software Engineer at Alloy?

As a Senior Full Stack Software Engineer at Alloy, your primary responsibilities will include designing and implementing performant algorithms, crafting frontend features with modern technologies like React, and developing robust backend features using Node.js and Python. Additionally, you'll be responsible for writing efficient queries for both non-relational and relational databases, guiding junior engineers, and collaborating closely with designers and product managers to ensure user needs are met across every feature.

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What qualifications are required for the Senior Full Stack Software Engineer position at Alloy?

To qualify for the Senior Full Stack Software Engineer position at Alloy, candidates should hold a Bachelor's degree in Engineering or a closely related field. Additionally, a minimum of 1 year of experience in a Software Engineering role or a closely related position is required. Strong knowledge of frontend technologies like React and backend technologies like Node.js and Python is critical for success in this role.

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What technologies will I work with as a Senior Full Stack Software Engineer at Alloy?

At Alloy, as a Senior Full Stack Software Engineer, you'll work with a diverse tech stack including frontend technologies like React, TypeScript, and Redux, as well as backend technologies such as Node.js and Python. You'll also engage with databases like ElasticSearch, DynamoDB, and Postgres to optimize query performance and data handling, ensuring you're utilizing the best tools for the job.

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How does Alloy support the professional development of its Senior Full Stack Software Engineers?

Alloy is committed to the continuous professional development of its employees. As a Senior Full Stack Software Engineer, you will have access to an annual Learning & Development stipend, which allows you to invest in courses, certifications, and other resources that enhance your skills. Moreover, you'll have ample opportunities for mentorship, collaboration with cross-functional teams, and involvement in engineering guilds focused on personal and professional growth.

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What can I expect in terms of work environment and culture as a Senior Full Stack Software Engineer at Alloy?

At Alloy, you can look forward to a hybrid work environment where you’ll work from the office in Union Square, Manhattan on designated days, while enjoying the flexibility of working from home as well. Our culture is vibrant and inclusive, fostering collaboration with regular team events and catered lunches. You'll be encouraged to be bold in your ideas and contributions, and you can expect to be part of a team that celebrates diversity and promotes a positive workplace.

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Common Interview Questions for Senior Full Stack Software Engineer
Can you explain your experience working with React and how it applies to the Senior Full Stack Software Engineer role at Alloy?

When answering this question, share specific projects where you've implemented React. Discuss how you leveraged React’s features to enhance user experience and performance. Highlight your familiarity with state management tools like Redux, and share how you ensure best practices in your coding, including testing and component reusability, which align with Alloy's emphasis on quality and innovation.

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Describe a challenging backend problem you solved using Node.js.

To effectively respond, outline a specific challenge, your approach to debugging or optimizing the existing solution, and the results you achieved. Make sure to mention the importance of designing efficient APIs and how your solution improved application performance, benefiting user experience in line with Alloy's goals.

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What strategies do you use to ensure high code quality and testing across your projects?

Share the testing methodologies and frameworks you prefer and explain how they help maintain code quality. Discuss continuous integration practices you've used, along with any tools for tracking code coverage and ensuring peer code reviews for fostering a culture of quality, which is crucial for Alloy.

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How do you handle tight deadlines and high-pressure situations?

When discussing this, provide an example of a time you successfully dealt with a tight deadline by prioritizing tasks, collaborating with your team, and effectively communicating with stakeholders. Highlight that maintaining a user-focused approach helped you deliver despite pressures, showcasing qualities that Alloy values.

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Can you provide an example of how you mentored a junior developer?

Illustrate a specific experience where you guided a junior developer, emphasizing the importance of knowledge sharing and fostering their growth. Discuss the methods you employed, such as pair programming, code reviews, and regular feedback loops, and how it benefited your team’s dynamics at Alloy.

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What considerations do you take into account when designing an algorithm?

In your response, focus on aspects like time complexity, space complexity, and edge cases. Discuss your methodical approach to research and design, which will help strengthen Alloy’s product and enhance user experience, showing that you can think critically about performance.

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How do you prioritize features for development?

Discuss your collaboration with product managers to gauge user needs and market demands. Explain how you balance technical feasibility with business goals and customer value, showing that you align with Alloy's user-centric focus in product development.

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What is your experience with cloud technologies, especially AWS?

Give specific examples of how you've utilized AWS in previous roles, such as using it for hosting applications or utilizing services like DynamoDB. Discuss how you ensure scalability and reliability of applications, aligning with Alloy's technological needs.

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How do you stay updated with emerging technologies in software development?

Share specific ways you engage with the tech community, such as attending workshops, joining meetups, or following tech blogs. Mention how this continuous learning process influences your work, thereby contributing to Alloy's innovative environment.

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Why do you want to work for Alloy as a Senior Full Stack Software Engineer?

This is your opportunity to show your enthusiasm about Alloy’s mission and values. Talk about how you resonate with the company culture and how your skills and experiences perfectly align with the goals of the company, making you a great fit for the role and team.

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Alloy is the modern analytics and planning software solution for consumer goods brands. We empower these companies, which make the items we use, wear and consume every day, to evaluate, predict, and respond to true demand. Our SaaS platform autom...

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DATE POSTED
March 23, 2025

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