Senior Backend/API Security Developer

UST is searching for a Senior Backend/API Security Developer (B2) with strong expertise in Python, Node.js, or Java and AWS, responsible for designing, developing, and securing enterprise-grade APIs that handle highly sensitive data.

The opportunity:

• Design Secure Architectures: Build scalable RESTful and GraphQL APIs using AWS services like Amazon API Gateway, AWS Lambda, and Amazon VPC while applying the principle of least privilege.

• Enforce Strict Authentication: Implement robust identity and access management using OAuth 2.0, OpenID Connect (OIDC), AWS IAM, and Amazon Cognito.

• Ensure Regulatory Compliance: Maintain data protection standards required by regulations like HIPAA, GDPR, or PCI-DSS through proper data masking, tokenization, and auditing.

• Manage Encryption Standards: Ensure all data in transit uses TLS 1.3 and data at rest is encrypted using AWS Key Management Service (KMS) with customer-managed keys.

• Conduct Security Audits: Perform automated security scans, static code analysis, and vulnerability assessments using tools like Amazon Inspector and AWS Security Hub.

• Implement Rate Limiting and WAF: Protect backend systems from distributed denial-of-service (DDoS) attacks and injection flaws using AWS WAF and API Gateway throttling controls.

• Establish Comprehensive Logging: Configure centralized monitoring and threat detection using Amazon CloudWatch, AWS CloudTrail, and Amazon GuardDuty for complete audit trails.

• Collaborate with DevOps engineers in designing and developing CI/CD pipeline using Codepipeline

This position description identifies the responsibilities and tasks typically associated with the performance of the position. Other relevant essential functions may be required.

What you need:

• The ideal candidate will drive API security standards, implement secure architecture patterns, and serve as a key technical leader in building a world-class API engineering practice.

• Experience with cloud-native development, OWASP API Security standards, OAuth2/OIDC, and large-scale microservices architectures is required.

• Skills: AWS, OAuth 2.0, Node.js, PostgreSQL

Full-time, regular employees accrue a minimum of 10 days of paid vacation per year, receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year), 10 paid holidays, and are eligible for paid bereavement leave and jury duty. They are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance, as well as the following Company-paid Employee Only benefits: basic life insurance, accidental death and disability insurance, and short- and long-term disability benefits. Regular employees may purchase additional voluntary short-term disability benefits, and participate in a Health Savings Account (HSA) as well as a Flexible Spending Account (FSA) for healthcare, dependent child care, and/or commuting expenses as allowable under IRS guidelines. Benefits offerings vary in Puerto Rico.

Part-time employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) Retirement Plan with employer matching.

Full-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year) and are eligible to participate in the Company’s 401(k) program with employer matching. They and their dependents residing in the US are eligible for medical, dental, and vision insurance.

Part-time temporary employees receive 6 days of paid sick leave each year (pro-rated for new hires throughout the year).

All US employees who work in a state or locality with more generous paid sick leave benefits than specified here will receive the benefit of those sick leave laws.

Born digital, UST transforms lives through the power of technology. We walk alongside our clients and partners, embedding innovation and agility into everything they do. We help them create transformative experiences and human-centered solutions for a better world.

UST is a mission-driven group of 29,000+ practical problem solvers and creative thinkers in more than 30 countries. Our entrepreneurial teams are empowered to innovate, act nimbly, and create a lasting and sustainable impact for our clients, their customers, and the communities in which we live.

With us, you’ll create a boundless impact that transforms your career-and the lives of people across the world., We proudly embrace the values that have shaped UST since day one. We build our culture of Humility, Humanity, and Integrity. These values inspire us to nurture a people-first, human centric culture that fosters diversity, prioritizes sustainable solutions, and keeps our people and clients at the forefront of all decisions.