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Lead Software Engineer - Python/Go

Job ID R95282 Updated date 03/24/2020 Location McLean, Virginia
McLean 1 (19050), United States of America, McLean, Virginia

At Capital One, we’re building a leading information-based technology company. Still founder-led by Chairman and Chief Executive Officer Richard Fairbank, Capital One is on a mission to help our customers succeed by bringing ingenuity, simplicity, and humanity to banking. We measure our efforts by the success our customers enjoy and the advocacy they exhibit. We are succeeding because they are succeeding.                                               

Guided by our shared values, we thrive in an environment where collaboration and openness are valued. We believe that innovation is powered by perspective and that teamwork and respect for each other lead to superior results. We elevate each other and obsess about doing the right thing. Our associates serve with humility and a deep respect for their responsibility in helping our customers achieve their goals and realize their dreams. Together, we are on a quest to change banking for good.

Lead Software Engineer - Python/Go

Are you very passionate about working in a collaborative work environment where you are challenged everyday with various kinds of problems and build highly customer centric software solutions and products? This team at Capital One works on mission critical systems that combat and prevent fraud for our millions of customers every day. This requires a startup mindset to solve problems and stay a step ahead of fraudsters. As a member of the Fraud Tech Team, you will be constantly engaged in creative ways of identifying and preventing fraud in different spaces of identity, transactions and payments. 


The Fraud Teams work to identify, prevent, mitigate and eliminate fraud activity that impacts Capital One and its customers. They are building the platforms and applications that fuse together data from multiple new and existing sources to build a fuller picture of customer behavior patterns. Giving us the ability to see deviations and respond to real-time and adjust models within a day to respond to new threats. This deals with “behind the scenes” authentication of the customer in every interaction using cutting edge tools such as behavioral and voice biometrics.

You will be working in an Agile team to design, implement and deliver software products using cutting edge technologies. At Capital One, we use AWS Public cloud to build and deploy all the applications and systems. CI/CD pipelines are heavily used to automate the infrastructure, build, test and deploy the applications all the way from conception to production. 

Whether your interest is building highly scalable real time APIs using Microservices or processing massive amounts of data using the latest Big Data Technologies or using Machine Learning for improving Fraud Detection Models, we have it all. If you have experience/interest in Java, Scala, Python, AWS, Kafka, Kubernetes technologies and are passionate about engineering and innovation and like to have fun while writing beautiful elegant solutions in a great team environment then we would love to talk to you. 


  • Design and develop high performing highly available APIs using Go and Python.
  • Conduct code reviews and mentor team members in the team.
  • Collaborate between cross-functional teams.
  • Embrace DevOps and YBYO (You Build You Own) model
  • Lead Architecture and Design decisions, manage technical roadmap
  • Document design decisions and enforce existing process guidelines
  • Work with Product Managers to build the “right” software
  • Help recruit great software engineering teams.


Basic Qualifications:

  • Bachelor's Degree 
  • At least 7 years of experience in software development including design, coding and testing
  • At least 4 years of experience in building RESTful APIs using Go and Python
  • At least 5 years of experience in Cloud technologies (AWS, Azure or GCP)
  • At least 3 year of experience in processing Streaming Data with Kafka or Spark
  • At least 3 year of experience creating end to end data pipelines as well as CI/CD pipelines for applications delivery

Preferred Qualifications:

  • Master’s degree in Computer Science
  • Experience in creating RESTful APIs using Java or Scala
  • Experience in designing data models and structures to store various kinds of data in different formats.
  • Experience with NoSQL DB and RDBMS
  • Experience with Agile methodologies


At this time, Capital One will not sponsor a new applicant for employment authorization for this position.

No agencies please. Capital One is an Equal Opportunity Employer committed to diversity and inclusion in the workplace. All qualified applicants will receive consideration for employment without regard to sex, race, color, age, national origin, religion, physical and mental disability, genetic information, marital status, sexual orientation, gender identity/assignment, citizenship, pregnancy or maternity, protected veteran status, or any other status prohibited by applicable national, federal, state or local law. Capital One promotes a drug-free workplace. Capital One will consider for employment qualified applicants with a criminal history in a manner consistent with the requirements of applicable laws regarding criminal background inquiries, including, to the extent applicable, Article 23-A of the New York Correction Law; San Francisco, California Police Code Article 49, Sections 4901-4920; New York City’s Fair Chance Act; Philadelphia’s Fair Criminal Records Screening Act; and other applicable federal, state, and local laws and regulations regarding criminal background inquiries.

If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation, please contact Capital One Recruiting at 1-800-304-9102 or via email at All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodations.

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Capital One Financial is made up of several different entities. Please note that any position posted in Canada is for Capital One Canada, any position posted in the United Kingdom is for Capital One Europe and any position posted in the Philippines is for Capital One Philippines Service Corp. (COPSSC).