Demo

Application Development Software Engineer

CLS-Group
Iselin, NJ Full Time
POSTED ON 7/26/2026
AVAILABLE BEFORE 8/26/2026
About CLS:

CLS is the trusted party at the centre of the global FX ecosystem. Utilized by thousands of counterparties, CLS makes FX safer, smoother and more cost effective. Trillions of dollars' worth of currency flows through our systems each day.

Created by the market for the market, our unrivalled global settlement infrastructure reduces systemic risk and provides standardization for participants in many of the world's most actively traded currencies. We deliver huge efficiencies and savings for our clients: in fact, our approach to multilateral netting shrinks funding requirements by over 96% on average, so clients can put their capital and resources to better use.

CLS products are designed to enable clients to manage risk most effectively across the full FX lifecycle - whether through more efficient processing tools or market intelligence derived from the largest single source of FX executed data available to the market.

Our ambition to make a positive difference starts with our people. Our values underpin everything that we do at CLS and define our working environment:
  • Pivotal purpose
  • Trusted guardian
  • Targeted innovation
  • Facilitate connections
  • Delivering excellence
  • Inclusive culture

Job Purpose

Application Development Software Engineer in the CLS development team, supporting the web platform and internal business systems, responsible for designing, building, and maintaining secure, resilient applications by applying secure coding practices, identifying and mitigating vulnerabilities, managing threats, and collaborating across teams to ensure compliance with security standards and best practices.

Essential Functions

Major duties and responsibilities of the job

Operational

For the various projects under progress:
Design, develop, and maintain enterprise-grade applications using Java, Linux and RDBMS
Participate, contribute, assimilate, and provide opinion on increasing the security focus on all stages of SDLC during any changes, enhancements and design being done to the applications.
Optimize code for performance, scalability, and security.
Identify, analyse, and resolve security vulnerabilities in web applications and serverside components. Apply security best practices in development and deployment processes.
Work proactively, independently and with global teams to address project requirements.
Build new and integrate with existing systems and APIs while ensuring adherence to secure coding standards and best practices.
Code and Test cases reviews and ensure code developed meets the requirements.

Knowledge, Skills and Abilities

Competencies required for successful job performance

Development skills:
Design, develop and maintain high quality web applications using Java and web technologies.
Good understanding of the distributed systems and database technologies like SQL Server and Postgres.
Experience in developing JS based front ends using Angular/React.
The ability to analyze the various quality dimensions including performance, reliability and resilience, cyber security, and design and implement improvements to meet them.
Good understanding of OWASP Top 10, secure coding practices, and Windows server hardening techniques.
Should have very up-to-date knowledge of latest technologies, technology trends, and third-party integrations, Open-Source Library integration.
Should have excellent analytical and communication skills.
Commitment to continuous learning and security awareness.
Experience with cloud platforms such as AWS is a plus

Essential Qualifications

Experience, education, and any certifications as necessary for successful job performance

Required:
  • 5 years of IT experience of which 3 years should be in Java web technologies including Spring framework (Spring Boot, Spring Security, Spring MVC)
  • Excellent knowledge of building and consuming RESTful API's and microservices.
  • Experience in a diverse set of web app development tools and technologies such as JavaScript , Typescript, HTML5, Bootstrap, Angular.
  • Excellent database skills required. SQL Server and Postgres preferred.
  • Excellent knowledge of DevSecOps process and remediating OWASP vulnerabilities.
  • Working knowledge and experience on scripting languages like Python is plus.
  • Excellent knowledge of Data Structures and Algorithms.
  • Hands-on working experience with DAST/SAST tools like Mend/SonarQube etc is a plus.
  • Knowledge/experience on CI/CD pipeline using Jenkins/Bamboo with Bitbucket/Git.

Desired Qualifications

Experience, education and any certifications as necessary for successful job performance

  • B. S. or beyond in computer science or a related field

  • Experience in financial services is plus

Success Factors

Personal characteristics contributing to an individual's ability to excel in the position
Strong communication skills (both verbal and written)
Ability to work with and motivate diverse, globally distributed teams

Base salary range: 135-175K

Our commitment to employees:

At CLS, we celebrate inclusion and consider this to be one of our strongest assets. We are committed to fostering an environment in which everyone feels comfortable to be who they are, and inclusion is valued. All employees have access to our inclusive benefits, including:
  • Holiday - UK/Asia: 25 holiday days and 3 'life days' (in addition to bank holidays). US: 23 holiday days.
  • 2 paid volunteer days so that you can actively support causes within your community that are important to you.
  • Generous parental leave policies to ensure you can enjoy valuable time with your family.
  • Parental transition coaching programmes and support services.
  • Wellbeing and mental health support resources to ensure you are looking after yourself, and able to support others.
  • Employee Networks (including our Women's Forum, Black Employee Network and Pride Network) in support of our organisational commitment to embrace and always be learning more about inclusivity.
  • Hybrid working to promote a healthy work/life balance, enabling employees to work collaboratively in the office when needed and work from home when they don't.
  • Active support of flexible working for all employees where possible.
  • Monthly 'Heads Down Days' with no meetings across the whole company.
  • Generous non-contributory pension provision for UK/Asia employees, and 401K match from CLS for US employees.
  • Private medical insurance and dental coverage.
  • Social events that give you opportunities to meet new people and broaden your network across the organisation.
  • Annual flu vaccinations.
  • Discounts and savings and cashback across a wide range of categories including health and retail for UK employees.
  • Discounted Gym membership - Complete Body Gym Discount/Sweat equity program for US employees.
  • All employees have access to Discover - our comprehensive learning platform with 1000 courses from LinkedIn Learning.
  • Access to frequent development sessions on a number of topics to help you be successful and develop your career at CLS.

Salary : $135,000 - $175,000

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