Full-Time

Senior Backend Engineer

Updated on 7/29/2026

Closinglock

Closinglock

51-200 employees

Fraud prevention platform for real estate

No salary listed

Austin, TX, USA

In Person

On-site in downtown Austin; remote work not stated.

Category
Software Engineering (1)
Required Skills
Kubernetes
Python
NoSQL
Software Testing
Git
Node.js
SQL
Java
Docker
TypeScript
AWS
REST APIs

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Requirements
  • Must be dedicated, passionate, and hard-working, and excited to work in an energetic environment.
  • Must be able to work with a team and collaborate effectively.
  • We are looking for a creative and efficient problem solver.
Responsibilities
  • Work with small teams - onboard your first week, ship changes during your second
  • Actively participate in the design, development, and maintenance of Closinglock web applications, ensuring high performance, responsiveness, and scalability.
  • Contribute to the full software development lifecycle, from concept and design to testing and deployment.
  • Consult on efforts regarding feature requests, feedback, and future product development for the business.
Desired Qualifications
  • 4+ years of experience with Python or other object oriented programming languages.
  • Strong experience in developing services using frameworks like Flask, FastAPI, or Django.
  • Experience with relational databases, including schema design, query optimization, and ORMs/integration with Python applications.
  • Solid working experience building RESTful APIs.
  • Knowledge of continuous integration/continuous deployment (CI/CD) pipelines
  • Experience with software testing, TDD, and unit testing.
  • Familiarity with containerization technologies like Docker.
  • Active experience integrating custom code with 3rd party APIs.
  • Hands-on experience with tools such as Git, Jira and Confluence.
  • Experience working in the AWS ecosystem.
  • Familiarity with application monitoring and reporting software such as Datadog and New Relic.

ClosingLock provides a fraud-prevention platform for real estate, offering a secure portal to transfer information and funds and reduce wire fraud for buyers, sellers, lenders, and closing companies. It uses identity verification to prevent seller impersonation and payoff verification within a secure portal to confirm parties and correct payoffs before funds move. It focuses on the real estate closing process with built-in identity and payoff checks in a secure platform, aiming to reduce wire fraud across all parties rather than generic tools. Its goal is to prevent financial losses from fraudulent activity in property transactions and modernize closings for safer, faster transactions.

Company Size

51-200

Company Stage

Series B

Total Funding

$50M

Headquarters

Austin, Texas

Founded

2017

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Simplify Jobs

Simplify's Take

What believers are saying

  • Payoff verification system confirms account and routing numbers in real time, reducing delays from 75 minutes to under one minute.
  • Platform integrates with SoftPro, RamQuest, Resware, and Settlor for seamless payoff retrieval and verification workflows within title production software.
  • Prevented over 8,250 fraud attempts, saving $1.24 billion in avoided losses while safeguarding over $500 billion across 2 million transactions.

What critics are saying

  • CertifID’s $10M wire fraud insurance coverage directly undercuts Closinglock’s $5M per-transfer limit, forcing title firms to switch within 9–15 months.
  • SoftPro’s embedded fraud detection bypasses Closinglock’s portal by making fraud prevention a native feature, risking churn in 12–18 months.
  • Qualia Labs’ digital closing platform now includes payoff verification and identity checks, eliminating need for separate escrow tools in 40% of mid-sized title firms within 12–24 months.

What makes Closinglock unique

  • Closinglock is the only platform covering full fund flow from inbound payments to disbursements in one secure system.
  • Identity verification uses non-public data sources, document checks, and optional selfie matching to confirm identities before funds move.
  • Automated payoff retrieval verifies account ownership through trusted financial data sources and flags suspicious details before money moves.

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Benefits

Health Insurance

Dental Insurance

Vision Insurance

Unlimited Paid Time Off

401(k) Retirement Plan

401(k) Company Match

Equity compensation

Work-life balance

Maternity/paternity leave

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

0%

2 year growth

1%
American Land Title Association
Mar 5th, 2026
Press releases.

Press releases. For Immediate Release ALTA renews Closinglock as Elite Provider for 2026. Washington, D.C., March 5, 2026 - The American Land Title Association (ALTA), the national trade association of the land title insurance industry, announced it has renewed Closinglock as an ALTA Elite Provider for 2026. ALTA's Elite Provider Program features distinguished service providers committed to furnishing extensive benefits to the title insurance and settlement services industry. Elite Providers promote the highest industry standards and provide effective solutions for ALTA members' critical needs. "The ALTA Elite Provider Program recognizes service providers that demonstrate a strong commitment to supporting the title insurance industry and the professionals who serve consumers every day," ALTA CEO Chris Morton said. "Elite Providers like Closinglock deliver reliable solutions, uphold high industry standards and help ALTA members operate more efficiently in a complex and evolving marketplace." Closinglock is building infrastructure to move money for real estate transactions - bringing wires, checks and email-based verification into one platform. Title professionals can use Closinglock to move funds, verify identities and manage critical steps in the closing process within a single platform backed by up to $5 million in insurance. More than 1 million home sales have been supported through the platform, with over $3 billion in payments protected with zero losses. "We're proud to continue our partnership with ALTA and the title professionals who keep real estate moving," said Andy White, founder and CEO of Closinglock. "Money movement is one of the most important parts of a closing, and it carries real responsibility. Together with ALTA, we're helping strengthen how funds move by giving title teams a secure, modern system built for today's risk environment." Closinglock offers ALTA members 50% off implementation. About ALTA The American Land Title Association, founded in 1907, represents an industry comprised of more than 17,000 title insurance companies operating across the nation, with over 90% being small businesses.

HousingWire
Oct 3rd, 2025
Tech Pulse: Agent AI adoption remains slow; title fraud thwarted in Ohio

Closinglock has launched a free tool for its customers to automate FinCEN data collection, reducing manual work from 2-3 hours to minutes per file.

HousingWire
Sep 16th, 2025
Closinglock adds automated payoff ordering to combat fraud

Closinglock has acquired a payoff retrieval solution from Viking Sasquatch, adding automated and insured payoff ordering to its platform for secure digital payments and wire fraud prevention in real estate transactions.

HousingWire
Aug 14th, 2025
Closinglock adds two-way text messaging for title insurance

Closinglock has introduced a two-way text messaging tool for the title insurance industry, allowing closing professionals to send and receive SMS messages with clients and partners from within the company's platform.

Business Wire
Jan 31st, 2025
Closinglock Secures $34 Million in Series B Funding to Power and Protect Real Estate Transactions

Closinglock, the leading fintech and fraud prevention technology provider for the real estate industry, today announced it has closed a $34 million Se