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 800 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 Workplaces, Forbes America’s Best Startup Employers, Best Fintech to Work for by American Banker, year after year.

Check out our investors and read more about us here.

About the team

Alloy's engineering org is built around speed, ownership, and deep collaboration. Our Platform and Infrastructure/Site Reliability teams report into the same leadership, which ensure seamless cross-team collaboration. Platform engineers here don't just build APIs in isolation, they work hand-in-hand with SRE to think about how systems run, scale, and recover in production. It's a setup that rewards engineers who care about the full lifecycle of the software they ship.

The backend powers everything from fraud detection and transaction classification to data ingestion and third-party integrations. We are a high performing team where engineers have significant ownership over core systems. There’s no separate “architecture layer”—the people writing the code are the ones making the decisions.

We're a hybrid team based in Greenwich Village, NYC, and we're looking for someone local to the Greater NYC area who will attend the office Tuesdays through Thursdays.

What you'll be doing

As a Senior Platform Engineer, you will:

• Architect and build backend systems. You'll own features end-to-end: from database design through to API endpoints, triggered events, and data pipelines. That means collaborating with Solutions Architects and Product Managers to spec out what clients actually need, then making it real in Node.js with a Postgres backend.
• Partner with Infra and SRE. With Platform and Infra/SRE under the same roof, you'll be involved in conversations about reliability, deployment, and production health– not just as a consumer of infrastructure, but as a collaborator. Observability, failure modes, and operational readiness are part of how we build at Alloy.
• Drive platform-level initiatives. Beyond feature work, you'll take on the kind of foundational improvements that make the whole team faster and more resilient, whether that's improving data ingestion pipelines, tightening up integrations with third parties, or reducing toil for the engineers around you.
• Own incident response and follow-through. When things break, you help get them back up. More importantly, you stick around for the blameless post-mortem and make sure the same thing doesn't happen twice.
• Mentor and multiply the team. You'll be given the trust and authority to tackle ambiguous, high-impact problems end-to-end, making architectural tradeoffs that hold up in production, and raising the bar for how the team builds and operates systems.

Who we’re looking for

• Experience: 8+ years of production software engineering experience, with a track record of owning meaningful backend systems on a collaborative team.
• Technical depth: Strong command of our core stack, or the clear ability and willingness to get there fast:
  • Node.js (TypeScript preferred)
  • Data systems expertise: Deep expertise in relational databases and experience with analytical databases. You think in terms of query plans, indexing strategies, and data access patterns. Our data layer powers real-time decisions and analytics, so you’re expected to actively optimize how services interact with databases for performance, scalability, and reliability.
  • Cloud expertise: You’re comfortable designing systems in public cloud, understand tradeoffs between managed services and custom infrastructure, think about scalability, reliability, and cost as first-class concerns
  • Observability
• Nice to have: Experience designing high-throughput data pipelines, working with event-driven systems, or operating services under real production load is a strong plus.
• Collaboration over credentials: We care far more about how you think, communicate, and work with others than about your degree or resume formatting. If most of your experience is through contracting or ambitious personal projects, tell us about it, we're open!
• Ownership mindset: You don't wait to be told what to fix. You notice problems, flag them, and help solve them.

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?

Alloy is committed to fair and equitable compensation practices. Below is the anticipated starting base compensation range for this role; however, pay may vary depending on job-related knowledge, in-demand skills, relevant experience, and/or geography. In addition to a competitive base salary, this position is also eligible for equity awards in the form of stock options (ISOs) as well as a competitive total benefits package. Your recruiter will be happy to walk you through the details and what compensation could look like for you specifically!

This position has a salary range of $198,000 to $250,000.

Benefits and Perks 

• 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, UrbanSitter, and Spring Health 
• Hybrid work environment: employees are expected to work Tuesdays through 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/Friday most employees Zoom into work from home while some take advantage of the quieter office.

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.

All Alloy jobs are listed on our careers page. Any communication during the recruitment process, including interview requests or job offers, will come directly from a recruiting team member with an alloy.com email address. We do not use outside applications or automated text messaging in our recruiting process. We will not ask for any sensitive financial or identification information during the recruiting process. If you’re ever unsure, please contact us directly via our website before sharing personal information.

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 800 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 Workplaces, Forbes America’s Best Startup Employers, Best Fintech to Work for by American Banker, year after year.

Check out our investors and read more about us here.

About the team

Alloy operates in a hybrid-work environment. We look to foster collaboration and community by having our local employees onsite three times per week. 

The Advance team is a group of full stack engineers focused on making the experience of using Alloy more and more “advanced” over time. They do this by working on features that leverage our differentiated data set to provide our customers with optimizations of their risk policies, more insights into their data, and proactive alerting of previously unknown risks. The team works all across the Alloy platform, striving to improve the usability of our rules engine and end-to-end case management system. Advance is a highly product-oriented team working on the most promising areas of the Alloy platform, which involves collaborative work across various functions.

What you'll be doing

• Collaborate with engineers, designers, and product managers to translate our product and technical vision into a concrete roadmap, guiding the team towards success.
• Architect, develop, test, and deploy significant customer-facing features and projects using cutting-edge tools and technologies.
• Work on both the front-end and backend, with the ability and willingness to lean in on either side of the stack at different times as needed, depending on the project. Our tech stack includes TypeScript, JavaScript (ES6/React), Node.js, PostgreSQL, OpenSearch, and AWS.
• Craft high-quality, thoroughly-tested code that meets the unique requirements of our clients, ensuring robustness,reliability, and continuous improvement of our platform.
• Embrace an iterative approach, swiftly iterating on features and solutions based on valuable feedback from both our product team and clients, ensuring continuous improvement and alignment with user needs.
• Provide technical mentorship and guidance, and foster a culture of learning and growth.

Who we’re looking for

We’re actually hiring for two new teammates at the Senior 1 & Senior 2 levels. There is some overlap in qualifications, given that we like to see technical leadership and expertise across senior levels in general. Ultimately, an offer and leveling will come down to depth of experience and interview performance.

We’re looking for:

• 5+ years (or for the Senior 2 role, 8+ years) of hands-on experience in developing production-ready software, demonstrating a proven track record of delivering robust and scalable solutions.
• Demonstrated expertise in steering both front-end and backend technical projects, prioritizing tasks, defining requirements, and facilitating productive discussions within the team to drive informed technical decisions.
• A collaborative mindset and experience in effectively leading engineering teams in collective pursuits, fostering an environment of cooperation and shared success.
• Strong ability to adapt swiftly to the evolving needs of our growing organization and dynamic product landscape, ensuring alignment with strategic objectives.
• Proficiency in client-side technologies such as TypeScript, JavaScript (ES6/React), HTML/CSS, as well as server-side proficiency in Python (Django), enabling seamless development across the entire stack.
• Practical experience in managing relational databases, with a strong command over PostgreSQL and its intricacies, ensuring efficient data management and retrieval.

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?

Alloy is committed to fair and equitable compensation practices. Below is the anticipated starting base compensation range for this role; however, pay may vary depending on job-related knowledge, in-demand skills, relevant experience, and/or geography. In addition to a competitive base salary, this position is also eligible for equity awards in the form of stock options (ISOs) as well as a competitive total benefits package. Your recruiter will be happy to walk you through the details and what compensation could look like for you specifically!

• The Senior Software Engineer 1 position has a base salary range of $166,000 - $209,000. 
• The Senior Software Engineer 2 position has a base salary range of $198,000 - $250,000. 

Benefits and Perks 

• 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, UrbanSitter, and Spring Health 
• Hybrid work environment: employees are expected to work Tuesdays through 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/Friday most employees Zoom into work from home while some take advantage of the quieter office.

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.

All Alloy jobs are listed on our careers page. Any communication during the recruitment process, including interview requests or job offers, will come directly from a recruiting team member with an alloy.com email address. We do not use outside applications or automated text messaging in our recruiting process. We will not ask for any sensitive financial or identification information during the recruiting process. If you’re ever unsure, please contact us directly via our website before sharing personal information.

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 800 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 Workplaces, Forbes America’s Best Startup Employers, Best Fintech to Work for by American Banker, year after year.

Check out our investors and read more about us here.

About the team

The Predict team builds Alloy’s real-time machine learning systems  at scale. Our immediate focus is on fraud detection, where we believe machine learning can simplify and accelerate decision-making in ways traditional rule-based systems can’t. Managing rules and policies to detect fraud is complex and constantly evolving; we use ML to make it smarter, faster, and more adaptive. Our approach is identity-centric, combining signals from a wide range of data sources to build a comprehensive understanding of risk.

You will work on advancing our core models while also partnering directly with customers to drive strong outcomes from fraud studies.

Alloy operates in a hybrid work environment. We look to foster collaboration and community by having our local employees onsite three days a week.

What you'll be doing

• Contribute to the design, training, and evaluation of machine learning models that power Alloy’s fraud detection capabilities.
• Develop testing plans, metrics, performance reports, and translate findings into actionable recommendations.
• Support production ML workflows, including feature generation, model training, and monitoring, to ensure models remain accurate and reliable at scale.
• Document findings and communicate insights to internal teams, contributing to shared learning and continuous improvement.
• Maintain up-to-date model documentation and support Alloy’s model governance processes to ensure transparency and compliance.
• Stay current with industry trends in applied ML and fraud detection, and contribute to Alloy’s mission of making financial services safer and more accessible.

Who we’re looking for

• Always building with end-solution in mind. 
• Able to communicate complicated concepts to a non-technical audience without diluting the complexity of the work.
• Able to build strong cross-functional relationships within Alloy.
• Naturally curious with a knack for asking tough questions.
• Solid understanding of core ML concepts such as supervised learning, feature engineering, and model evaluation.
• A team player. You believe that big things happen when the right people are working together.
• A fast learner
• Humble. Mistakes happen and owning them helps us learn and move on quickly

You have:

• 8+ years as an individual contributor in Applied Fraud Research, Data Science, or Machine Learning with a proven track record in a “Solutions” or client-facing capacity.
• Expertise in working with highly imbalanced datasets and building production-grade Machine Learning models with specific interest in tree-based models.
• Advanced proficiency in scripting languages like Python and querying languages like SQL
• Proven ability to wrangle and think thoughtfully about data at scale (processing billions of records).
• Experience developing metrics and dashboards.
• Able to communicate their findings effectively to technical and nontechnical members
• Someone who embodies our shared Alloy values: be bold, get scrappy, collaborate, and celebrate our differences.
• You have experience in a highly analytical role in fast-paced environments
• Must be local to Greater New York City.

Nice to Haves:

• Previous experience in financial fraud detection.
• Advanced Degree (Masters or PhD) in a quantitative field.
• Experience managing the end-to-end lifecycle of a technical pilot or Proof of Concept.
• Experience with BI tools like Looker.
• Experience with modeling on graph structures.

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?

Alloy is committed to fair and equitable compensation practices. Below is the anticipated starting base compensation range for this role; however, pay may vary depending on job-related knowledge, in-demand skills, relevant experience, and/or geography. In addition to a competitive base salary, this position is also eligible for equity awards in the form of stock options (ISOs) as well as a competitive total benefits package. Your recruiter will be happy to walk you through the details and what compensation could look like for you specifically!

This position has a salary range of $212,000, to $251,000.

Benefits and Perks 

• 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, UrbanSitter, and Spring Health 
• Hybrid work environment: employees are expected to work Tuesdays through 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/Friday most employees Zoom into work from home while some take advantage of the quieter office.

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.

All Alloy jobs are listed on our careers page. Any communication during the recruitment process, including interview requests or job offers, will come directly from a recruiting team member with an alloy.com email address. We do not use outside applications or automated text messaging in our recruiting process. We will not ask for any sensitive financial or identification information during the recruiting process. If you’re ever unsure, please contact us directly via our website before sharing personal information.

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 800 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 Workplaces, Forbes America’s Best Startup Employers, Best Fintech to Work for by American Banker, year after year.

Check out our investors and read more about us here.

About the team

Alloy is actively hiring experienced full stack engineers to join the Partner Ecosystem Platform Engineering team to design and build a future data provider integration platform. Alloy partners with hundreds of data vendors that perform work across identity verification, fraud mitigation and many others. To scale this out Alloy is building the next generation integration platform, which will make it easy to build, operate and maintain data integrations. Alloy is hiring experienced engineers who can lead this effort, creating a new platform that enables the new stage of Alloy’s growth.

Alloy operates in a hybrid-work environment. We look to foster collaboration and community by having our local employees onsite twice a week.

What you'll be doing

Reporting to the Head of Engineering, you will:

• Design and build a scalable platform that simplifies the creation/operation of hundreds of data partner integrations. 
• Collaborate with engineers, designers, and product managers to translate our product and technical vision into a concrete roadmap, guiding the team towards success.
• Partner with third-party vendors & our clients to gather requirements and co-create solutions, ensuring seamless integration of their data within the core product and the evolving marketplace experience. 
• Architect, develop, test, and deploy significant customer-facing features and projects using cutting-edge tools and technologies. Our tech stack includes TypeScript, JavaScript (ES6/React), Python (Django), Node.js, PostgreSQL, Elasticsearch, and AWS.
• Craft high-quality, thoroughly-tested code that meets the unique requirements of our clients, ensuring robustness and reliability.
• Provide technical mentorship and guidance to fellow engineers, fostering a culture of learning and growth within our rapidly expanding team.

In summary, you will play a pivotal role in building out the next generation of partner ecosystem platform at Alloy, driving the development of integrations with our data partner APIs and SDKs, leveraging your technical expertise to build solutions that have a significant market impact while fostering a collaborative and high-performance team environment.

Who we're looking for

• 10+ years of hands-on experience in developing production-ready software, demonstrating a proven track record of delivering robust and scalable solutions.
• Experience maintaining and working with data integrations / external API sources
• Expertise in steering technical projects (fullstack or backend), adept at prioritizing tasks, defining requirements, and facilitating productive discussions within the team to drive informed technical decisions.
• Collaborative mindset, experience leading engineering teams in collective pursuits, fostering an environment of cooperation and shared success.
• Remarkable ability to adapt swiftly to the evolving needs of our growing organization and dynamic product landscape, ensuring alignment with strategic objectives.
• Proficiency in client-side technologies such as TypeScript, JavaScript (ES6/React), HTML/CSS, as well as server-side proficiency in Python (Django), enabling seamless development across the entire stack.
• Practical experience in managing relational databases, with a strong command over PostgreSQL and its intricacies, ensuring efficient data management and retrieval.

Nice to have:

• Experience working in developer productivity domain and/or SDKs
• Experience working in Fintech or the financial services industry.

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?

Alloy is committed to fair and equitable compensation practices. In addition to a competitive base salary, this position is also eligible for equity awards in the form of stock options (ISOs) as well as a competitive total benefits package. Your recruiter will be happy to walk you through the details and what compensation could look like for you specifically!

This position has a salary range of $198,000 to $250,000. Offers are determined by experience, skills, and interview performance as indicators of expected contribution, with movement through the range tied to demonstrated impact in the role.

Benefits and Perks 

• 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, UrbanSitter, and Spring Health 
• 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.

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.

All Alloy jobs are listed on our careers page. Any communication during the recruitment process, including interview requests or job offers, will come directly from a recruiting team member with an alloy.com email address. We do not use outside applications or automated text messaging in our recruiting process. We will not ask for any sensitive financial or identification information during the recruiting process. If you’re ever unsure, please contact us directly via our website before sharing personal information.