Senior Full-Stack Developer, New York (749, 750, 751)

Ion Group
New York, NY

We are seeking a Senior Full-Stack Developer to join our newly created Service Consultant sub-practice, dedicated to serving a mature and impactful long-term client in the financial services industry. This role requires teamwork and focus on advancing the client's agenda. Join us to make a meaningful impact and contribute within our innovative team.  \n

What you’ll do: 
  • Developing and testing integrations between software products
  • Extending products and services through contributions in development, enhancements, testing and implementation
  • Developing, modifying, extending code for building cloud infrastructure, and automate using CI/CD pipeline
  • Ability to perform problem analysis, data analysis, reporting, and communication

Requirements:
  • Strong analytical and communications skills
  • Ability to design and implement interfaces by incorporating established best practices.
  • Experience using Continuous Integration and Deployment tools such as Gitlab/Jenkins, etc.
  • Strong technical skill in software engineering for Java EE /Cloud technologies and proficiency in Java Lambdas, Java Streams API, Java functional programming
  • Proficiency in one or more programming languages e.g., Python, Scala.
  • Required Technologies: Java 8-21, JavaScript, Spring (Data, MVC, Security, Core, etc.), App/Web server(Tomcat, JBoss, etc.), RDBMS(Oracle, PostgreSQL)
  • Required Experience: Building, integrating, and testing systems end-to-end

Nice to have:
  • Building web UIs using React, Vue or Angular.
  • Preferred Technologies: Docker, Terraform, Playwright and AWS services (IAM, S3, CloudFront, Secrets Manager, EC2, ECS, ALB, RDS, Elasticache, MSK, AmazonMQ)
  • Building and integrating decision support applications for operations and trading in the financial industry, specifically with middle and back office and or compliance and risk management products

\n

The base salary range is - $140,000-$180,000

Placement within the range provided above is based on the individual’s relevant experience and skills for the role and level.

Base salary is only one component of our total compensation package. Employees may be eligible for a discretionary bonus, which is determined upon company and individual performance.

Salary range disclosure as required by S9427A when hiring in New York.

Lab49 is a specialist strategy, design, and technology consulting company dedicated to the financial services industry. We were founded in 2002 to fill a need in the Financial Technology marketplace for high-end execution and reliable delivery of technology projects.

We have office hubs in Midtown Manhattan, Washington DC, London, Budapest, New Delhi and Sydney.

Our Hybrid Work Model

At Lab49, we embrace a hybrid work model, offering you the flexibility to work from the office or remotely. We expect our Lab49ers to average 2-3 days per week in person and this could be at our midtown office in NYC or at a client site. We believe that both the flexibility and in person connection to each other and our clients build a collaborative culture and the opportunity to accelerate growth and innovation. 

Lab49/ION is committed to maintaining a supportive and inclusive environment for people with diverse backgrounds and experiences. We respect the varied identities, abilities, cultures, and traditions of the individuals who comprise our organization and recognize the value that different backgrounds and points of view bring to our business.

Lab49/ION adheres to an equal employment opportunity policy that prohibits discriminatory practices or harassment against applicants or employees based on any legally impermissible factor.

Posted 2025-08-20

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