FI Senior Software Engineer; _

Career Opportunities with Affinity Solutions

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Careers At Affinity Solutions

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Affinity Solutions (Affinity) is the leading consumer purchase insights company. We provide a complete view of U.S. and U.K. consumer spending, across and between brands, via exclusive access to fully permissioned data from over 100 million consumers. Our proprietary AI technology, Comet™, transforms these purchase signals into actionable insights for business and marketing leaders to drive optimal outcomes and build lasting customer relationships.

Visit  to discover how we’re shaping the future of consumer purchase insights.

As we continue to innovate and scale, we are looking for an experienced FI Senior Software Engineer to take a leading role in our development projects.

• Lead complex, product-driven application development and maintenance.
• Work within the Symfony framework to develop highly efficient, scalable, and responsive front-end and back-end solutions, adhering to advanced software architecture principles.
• Cover new and existing code with Unit and Integration tests.
• Implement secure coding practices to mitigate advanced XSS, SQL injection, and other security threats.
• Design and develop RESTful APIs interfaces for seamless integration with ecosystem partners
• Optimize system performance and ensure high availability of our data processing platforms
• Manage multiple time-sensitive projects with a focus on deliverables and deadlines
• Collaborate with product managers to translate product vision into technical requirements and deliverables
• Participate in Agile ceremonies, including sprint planning, daily stand-ups, and retrospectives
• Mentor junior developers, guiding them through code reviews and promoting a culture of continuous learning and excellence

• Degree in Computer Science, Software Engineering, or related field; or equivalent experience in software development with a focus on product development in a technology company
• Proficiency in PHP and Type Script
• Experience with Symfony Framework (or similar)
• High level of comfort in a Linux environment, SSH, and Remote Development (over SSH)
• Experience with ORM:
  Doctrine, Hibernate, Sequelize, TypeORM
• Advanced knowledge of writing Unit tests (test doubles, mocks, data generation)
• Expertise in designing and optimizing high-performance, scalable databases applications, performance tuning
• Strong understanding of security best practices and experience implementing OAuth 2.0 and OpenID Connect
• Experience implementing SSO using SAML 2.0 a big plus
• In-depth understanding of object-oriented design and advanced programming paradigms
• Mastery of RESTful web services and API development
• Strong knowledge of distributed systems and microservices architecture
• Familiarity with containerization and orchestration tools (Docker, Kubernetes)
• Expertise in GIT version control system
• Proven track record of leading complex projects and driving innovation
• Exceptional critical thinking, problem-solving, communication skills; able to collaborate effectively with cross‑functional teams

Salary Range: $140,000 - $160,000
Location :
New York City (proximity to commute to office few days a week)
Office Hours : 9 am–5:30 pm

Benefits for full-time employees of Affinity Solutions begin on the first of the month following your date of hire with a generous employer contribution for medical, dental, and vision. In addition to company paid holidays, wellness time off, other wellness benefits, and employee discounts, you will also get employer paid life insurance and have the option to enroll into an employer‑matched 401K Plan.

We strongly encourage work/life balance by providing unlimited vacation days, available starting 90 days from your hire date as a team member.