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What are the key skills and qualifications needed to thrive as a Quantitative Developer, and why are they important?

To thrive as a Quantitative Developer, you need expertise in mathematics, statistics, programming (often in Python, C++, or Java), and a strong background in quantitative finance or a related field. Familiarity with financial modeling tools, version control systems like Git, and experience with data analysis libraries or platforms are typically required. Strong problem-solving abilities, attention to detail, and effective communication make candidates stand out in this role. These skills are crucial for developing robust, efficient models and tools that directly support trading, risk management, and financial decision-making.

How does a Quantitative Developer typically collaborate with quantitative analysts and traders in a financial firm?

Quantitative Developers work closely with quantitative analysts to implement mathematical models into robust, efficient code that can be used by traders for real-time decision-making. They often translate research prototypes into production-ready applications, ensuring that the models are both accurate and optimized for speed. Regular communication with traders helps Quantitative Developers understand the practical requirements of trading strategies, allowing them to tailor tools and systems for maximum usability and impact. This collaborative environment is essential for quickly adapting to market changes and maintaining a competitive edge.

What are Quantitative Developers?

Quantitative Developers, often called 'quant devs,' are professionals who combine expertise in programming, mathematics, and finance to design, develop, and maintain complex financial models and trading algorithms. They work closely with quantitative analysts (quants) to implement models that analyze financial data, price securities, or automate trading strategies. Their role typically involves programming in languages like Python, C++, or Java, and working with large datasets to ensure the efficiency and accuracy of financial systems. Quantitative Developers play a critical role in investment banks, hedge funds, and financial technology firms.

What is the difference between Quantitative Developer vs Quantitative Analyst?

AspectQuantitative DeveloperQuantitative Analyst
Required CredentialsDegree in Computer Science, Mathematics, or related field; programming skills (Python, C++, Java)Degree in Finance, Economics, or Mathematics; strong analytical skills
Work EnvironmentPrimarily software development, coding, and system implementationData analysis, modeling, and strategy development
Employer & Industry UsageFinancial firms, hedge funds, trading desksInvestment banks, asset management firms, hedge funds
Common Search & ComparisonFocuses on coding and system buildingFocuses on market analysis and strategy

While both roles work within the finance industry and require quantitative skills, Quantitative Developers primarily focus on building and maintaining trading systems and algorithms through programming. Quantitative Analysts concentrate on analyzing data and developing models to inform trading strategies. The roles often collaborate but differ in their core responsibilities and skill sets.

What is it like to work at Open Systems Technologies?

Open Systems Technologies appears to be a collaborative and innovative company that prioritizes teamwork and customer satisfaction. The company's mission-driven approach is reflected in its structured team environment, where employees work together to deliver cutting-edge solutions and services to clients across various industries. Working at Open Systems Technologies may appeal to candidates who value a dynamic work environment, opportunities for professional growth, and the chance to contribute to meaningful projects that drive business success.
What other companies are hiring for Quantitative Developer jobs?
What are the most popular jobs at Open Systems Technologies?
What are the most popular categories at Open Systems Technologies?
Infographic showing various Quantitative Developer job openings at Open Systems Technologies in the United States as of May 2026, with employment types broken down into 89% Full Time, and 11% Contract. Highlights an 97% Physical, and 3% Remote job distribution.
Security Verification Test Software Engineer

Security Verification Test Software Engineer

Open Systems Technologies Corporation

Annapolis Junction, MD • On-site

Full-time

Medical, Dental, Life, Retirement, PTO

Posted 29 days ago

Job description

Open Systems Technologies Corporation is a leader in the government contracting marketplace, providing Enterprise Security and Cloud Computing solutions to support large organizations. Our capabilities include supplying federal government entities and private businesses with software development, scientific and engineering technical assistance, systems integration, and enterprise security. Since its founding in 1996, OST has been committed to delivering high-quality, best-in-class results that bring added value to our clients while investing in our employees' futures by providing exciting projects to work on, and robust benefits to include technical training and certifications, relocation assistance and a 401K match with immediate vesting.
Open Systems Technologies is seeking an SVT Software Engineer to support a nationally significant and fast-paced program.
The selected individual will perform software development activities as a member of an agile development team focused on preparation and execution of verification tests of our software releases. Development includes the full range of turning agile stories into implementable concepts, through development, testing and deployment of the new capabilities in this large, complex system. Following the Behavior Driven Development BDD pattern, our developers are responsible for implementing robust testing leveraging DEVOPS automation and, where appropriate, use of test automation commercial tools. Developers will have the opportunity to focus on developing customer domain specific language code and there are a range of opportunities for Java, embedded C++, scripting languages, object-oriented modeling tools, low-level programming, serialization/deserialization, and dependency injection.
Responsibilities:
The SVT Software Engineer will be responsible for software development activities both individually and as a member of an agile team. She/he will actively participate in program increment planning and related team activities, and will analyze and study complex system requirements, use design software tools, provide support using formal specifications, data flow diagrams, and other accepted design techniques with the use of Computer Aided Software Engineering ?CASE? tools, and will use sound software engineering principles to ensure that developed code is modifiable, efficient, reliable, understandable, fault tolerant, and reusable. The individual will provide software process management and control throughout the coding portion of the software development process. Additionally, the individual will promote code reuse and cross-program collaboration while reducing maintenance costs by creating common functions and shared actions for developers and testers. The individual will engineer, author, tune and document automation scripts in a development environment and deploy to the test/production bench.
Required Qualifications:
  • CLEARANCE: TS/SCI with Full Scope Poly at MD customer
  • Must have demonstrated experience with Java.
  • Experience or familiarity with multiple the following: Java/JEE, Python, C/C++, SQL, SOAP, WSDL, WADL, PERL, PowerShell, VBS, Eclipse, Postgres, Oracle, Jenkins.
  • Experience with Web Application User Interface Development, knowledge of databases and structures, and/or experience working with JSON, HTML, XML, XSLT.
  • Experience with technologies underlying cryptographic systems symmetric and asymmetric cryptography, ASN.1 encoding, XML canonicalization, digital signatures?
  • Experience developing on Windows, and/or Linux operating systems.
  • Must have documented professional experience with web services.
  • Must have a strong understanding of sound software development principles and practices.
  • Must be able to plan and prioritize personal tasking and be able to communicate effectively verbally and in writing.
  • Must be an independent thinker, capable of performing high quality work, both independently and with a team in a fast-moving environment.

Preferred Qualifications
  • Bachelor's degree in Computer Science or a related discipline and at least 8 years of relevant experience.
  • Experience with high level requirements management including requirements decomposition, secure systems engineering and development, trade-off analysis, interface control, and testing and continuous integration.
  • Experience in software development on Agile teams using Agile Developer practices such as Pair Programming, TDD, Refactoring, and ATDD.
  • Developing/integrating with custom defined Domain Specific Languages ?DSL?.
  • Implementing structures in a scripting language that can be interpreted by a DSL.
  • Experience with Object Software Modeling tools.
  • Experience with developing real-time embedded software.
  • Experience with the following: JEE ?EJB, JPA, JTA, JAX-B, JAX-RS, JAX-WS?, SQL, application servers ?Tomcat, WebLogic, JBoss?, scripting.
  • Experience with FITNesse, Mockito, Cucumber, Unified Functional Tester ?UFT?, Selenium.
  • Experience with Behavior Driven Development ?BDD?.
  • Secure Software development ?i.e., Layer 7 Policy?.
  • Experience with the Scaled Agile Framework ?SAFe? methodology, SAFe Agilest
  • Certification, or experience as a member of an agile team.
  • Additional experience in J2EE, Python, C/C++, SQL, SOAP, WSDL, Postgres, Oracle, Mongo, PowerShell a plus.

BENEFITS
OST is an Equal Opportunity Employer and has been operating since 1996 providing support on various contracts with Government agencies. We offer a comprehensive benefits package that includes 3 weeks paid time off, 11 Federal Holidays, medical/dental coverage, STD, LTD, Life Insurance, AD&D, 401k with up to 4% match, and end-of-year profit sharing.

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