Senior Software Engineer, Data

The Role

We are seeking a hands-on Senior Software Engineer to lead development and implementation of data products within our Data group and partner with one of our four main scrum teams and will be exposed to projects involving distribution, bond calculations, quantitative analysis, and market leading data products. 

The individual will have the opportunity to leverage our extensive global proprietary data assets and work closely with leading developers, architects, and product management within the fixed-income fintech space. 

How You'll Help Take Us There

• Data Distribution Platform (File/API/Stream):
  • Build and enhance scalable and resilient next gen Data Distribution capabilities across various channels.
  • Use Apache Flink (or equivalent) to process batch and real-time data streams for delivery.
  • Develop a robust API platform to efficiently onboard and expose sub-second APIs (REST/GraphQL).
  • Deploy and manage client-facing real-time data feeds (FIX/Kafka). 

• Data Product Development:
  • Design, develop and implement data products across our hybrid environment in Java/Python.
  • Build and maintain scalable real-time and batch ingestion and processing pipelines (e.g. Kafka).
  • Collaborate closely with Data Scientists and Product Strategists to productionize innovative revenue-generating data products.  

• Cloud & Big Data Infrastructure:
  • Design and maintain AWS-based data products (S3, ECS/EKS, Athena/Glue/Aurora) with a focus on containerized and serverless technologies.
  • Optimize data storage (partitioning, bucketing) for performance.
  • Ensure data security, cost efficiency, and best practices (IAM, encryption, monitoring).  

• Software Engineering & CI/CD:
  • Implement automated build/test/deploy pipelines (Jenkins, GitLab CI/CD, or equivalent).
  • Enforce coding standards: modular design, documentation, peer reviews, and automated testing (unit/integration).
  • Instrument pipelines with monitoring and alerting (CloudWatch, Grafana).  

• Cross-Functional Collaboration:
  • Act as a liaison between Development, Product, Research, Platform and Infrastructure teams.
  • Present technical designs and progress to stakeholders.
  • Mentor junior engineers on data-engineering best practices and streaming architectures.  

What We’re Looking for  

• 6+ years of enterprise software development experience
• BS/MS degree in Computer Science, Engineering or a related subject
• Outstanding Core Java skills, multi-threading experience and Spring Boot knowledge
• Understanding of object-oriented design patterns
• Experience using Apache Flink for batch and stream processing
• Experience building API (GraphQL, Rest, RPC) and working on streaming platforms like Kafka, JMS, etc.
• Experience building, deploying and maintaining containerized applications
• Working experience in AWS cloud native services and Enterprise or cloud-based DBMS such as Postgres, Oracle and SQL Server
• Good to have experience with AWS architectures (e.g. ECS, EKS, S3, EC2, etc) and Infrastructure-as-Code (e.g. CloudFormation or Terraform)
• Good to have experience with technologies like AirFlow, Python, NumPy/Pandas/Polars
• Strong mathematical aptitude
• A passion for collaboration and strong relationship building skills
• Interest in financial markets
• Top-notch problem resolution skills
• Strong written, verbal, and team communications skills. 

What You Can Expect from Us

• Hybrid Environment: Our employees enjoy a mix of working in the office and from home
• Free Food: We provide free lunch for employees when they are working in the office. Plus, our offices are stocked with snacks
• Paid Time Off: Competitive PTO package including vacation and personal days, sick leave and charity days
• Generous Parental Leave: Up to 20 weeks fully paid leave
• 401(k): Dollar-for-dollar employer match up to $17,500
• Employee Stock Purchase Plan: Employees can purchase MarketAxess common stock at a discount
• Wellness Stipend: We provide employees with up to $1K annually towards gym memberships, home office equipment and more
• Onsite Healthcare: We offer convenient access to world-class care through Mount Sinai at our Hudson Yards location
• Tuition Assistance and Professional Development: Benefit from live and on-demand learning, role-specific training, employee-led Lunch and Learns and guest speakers
• Core benefits: Highly competitive medical, dental, and vision programs

For job positions in NYC, NY, and other locations where required, the estimated salary range for a new hire into this position is $150,000 USD to $225,000 USD. Actual salary may vary depending on job-related factors, which may include knowledge, skills, experience, and location. You may also be eligible for annual cash incentives, equity, and other benefit programs.

MarketAxess Corporation and its affiliates provide equal employment opportunities to all persons regardless of age, color, national origin, citizenship status, physical or mental disability, race, religion, creed, gender, sex, sexual orientation, gender identity and/or expression, genetic information, marital status, veteran status, or any other legally protected characteristic in the location in which the candidate is applying.

All of your information will be kept confidential according to EEO guidelines.

Client-provided location(s): New York, NY

Job ID: 4599826006

Employment Type: OTHER

Posted: 2025-09-15T18:29:20