Senior Software Engineer (PHP, React, JavaScript, SQL)

Were looking for a handson Senior Full Stack Engineer to design build and scale datadriven products. Youll own endtoend deliveryarchitecture coding performance optimization and operational readinesswhile mentoring engineers and raising engineering standards across backend (PHP) frontend (JavaScript) and data (SQL).

What Youll Do

• Solution Architecture
  • Own service and UI architecture for highthroughput lowlatency applications.
  • Define modular boundaries data models integration contracts and security controls.
• Backend Engineering (PHP)
  • Build secure maintainable services using PHP (Laravel/Symfony or equivalent).
  • Implement RESTful APIs background jobs/queues caching and robust authentication/authorization (OAuth2/JWT).
  • Profile and optimize runtime performance and container images.
• Frontend Engineering (JavaScript)
  • Develop rich accessible UIs using React (preferred) or Angular/Vue.
  • Establish reusable component libraries state management and clientside performance budgets.
  • Integrate telemetry and feature flags for safe incremental delivery.
• Data & SQL
  • Design normalized schemas with pragmatic denormalization for reporting.
  • Write performant SQL (queries views stored procedures); tune indexes and query plans.
  • Implement migration scripts ETL helpers and enforce data quality guardrails.
• Quality Security & Reliability
  • Champion TDD/BDD rigorous code reviews static analysis and secure coding (OWASP).
  • Own CI/CD pipelines (build test scan deploy) and rollout strategies (blue/green canary).
  • Instrument services with logs metrics and traces; define SLOs and error budgets.
• Leadership & Collaboration
  • Mentor engineers; lead design reviews and pairing.
  • Partner with Product/Design/Data to turn requirements into executable plans.
  • Lead technical spikes/POCs and influence the roadmap with datadriven proposals.

Qualifications :

• Backend: Strong professional experience building enterprise services in PHP using Laravel/Symfony (or equivalent).
• Frontend: Advanced JavaScript with a modern framework (React preferred; Angular/Vue acceptable).
• Data: Deep SQL proficiency (PostgreSQL/MySQL/SQL Server) including indexing strategy queryplan optimization and transaction semantics.
• Integration & APIs: REST/JSON; webhook design and idempotency. (GraphQL/gRPC familiarity is a plus.)
• Testing & CI/CD: PHPUnit; GitHub Actions/Azure DevOps/Jenkins; Dockerbased builds.
• Cloud & Runtime: Deployments on Azure; Docker; familiarity with Kubernetes fundamentals.
• Security & Compliance: OAuth2/JWT secrets management leastprivilege design vulnerability remediation.
• Soft Skills: Excellent communication stakeholder management and technical leadership.

Advantage Language (Nice to Have)

• Java (Advantage Language):
  • Practical experience in Java (language fundamentals collections concurrency JVM performance).
  • Comfort with common Java build/test tools (Maven/Gradle JUnit).
  • Exposure to microservice patterns is a plus (frameworkagnostic; Spring Boot).

Additional Information :

NIQ may utilize artificial intelligence (AI) tools at various stages of the recruitment process including résumé screening candidate assessments interview scheduling job matching communication support and certain administrative tasks that help streamline workflows. These tools are intended to improve efficiency and support fair and consistent evaluation based on job-related criteria. All use of AI is governed by NIQs principles of fairness transparency human oversight and inclusion. Final hiring decisions are made exclusively by humans. NIQ regularly reviews its AI tools to help mitigate bias and ensure compliance with applicable laws and regulations. If you have questions require accommodations or wish to request human review were permitted by law please contact your local HR representative. For more information please visit NIQs AI Safety Policies and Guiding Principles: Benefits

• Flexible working environment
• Volunteer time off
• LinkedIn Learning
• Employee-Assistance-Program (EAP)

About NIQ

NIQ is the worlds leading consumer intelligence company delivering the most complete understanding of consumer buying behavior and revealing new pathways to 2023 NIQ combined with GfK bringing together the two industry leaders with unparalleled global reach. With a holistic retail read and the most comprehensive consumer insightsdelivered with advanced analytics through state-of-the-art platformsNIQ delivers the Full View. NIQ is an Advent International portfolio company with operations in 100 markets covering more than 90% of the worlds population.

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Our commitment to Diversity Equity and Inclusion

At NIQ we are steadfast in our commitment to fostering an inclusive workplace that mirrors the rich diversity of the communities and markets we serve. We believe that embracing a wide range of perspectives drives innovation and excellence.  All employment decisions at NIQ are made without regard to race color religion sex (including pregnancy sexual orientation or gender identity) national origin age disability genetic information marital status veteran status or any other characteristic protected by applicable laws. We invite individuals who share our dedication to inclusivity and equity to join us in making a meaningful impact. To learn more about our ongoing efforts in diversity and inclusion please visit the  Work :

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Employment Type :

Full-time