Jobgether
Senior Back-end Product (PHP, Symfony) - Fluix Team
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Senior Back-end Product Engineer (PHP, Symfony) - United Kingdom
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Back-end Product Engineer (PHP, Symfony) based in the United Kingdom.
This role offers end-to-end ownership of backend product development within a mature B2B workflow automation platform.
You’ll work on core systems spanning workflow automation, offline synchronization, document processing, e-signatures, and enterprise integrations.
From understanding customer problems to designing, shipping, operating, and improving solutions, you’ll have broad technical ownership.
The position combines hands-on engineering with architectural decision-making, product thinking, and continuous improvement.
You’ll work across backend, frontend, mobile, support, and other teams to deliver reliable experiences for customers.
AI is an integral part of the engineering workflow, supporting development, testing, refactoring, investigation, and documentation.
The environment encourages autonomy, technical initiative, knowledge sharing, and meaningful improvements to a product used by businesses worldwide.
Accountabilities
- Own backend features end-to-end, from understanding customer problems and designing solutions through production release and continuous improvement.
- Design scalable, reliable, and maintainable backend services, APIs, and data models.
- Scope and decompose work independently, make architectural decisions, and present technical solutions to the team.
- Challenge requirements and technical approaches when simpler, more effective solutions are possible.
- Develop new functionality while refactoring existing systems, improving code quality and expanding test coverage.
- Use customer feedback, data, logs, and production insights to investigate issues and guide product and technical decisions.
- Incorporate AI tools into daily development for coding, refactoring, code reviews, testing, documentation, and technical investigations, while helping strengthen AI practices across the team.
- Improve development workflows through automation, stronger observability and alerting, and more effective release processes.
- Participate in shared on-call and support rotations, investigating production incidents and customer-reported issues, identifying root causes, and implementing long-term solutions.
- Prepare release plans and coordinate deployments.
- Collaborate with Backend, Frontend, iOS, Android, Support, and other teams to deliver reliable product experiences.
- Proactively propose engineering initiatives, improve development practices, and share technical knowledge with colleagues.
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Requirements
- 5+ years of backend engineering experience, including ownership of complex features or services from solution design through production.
- Strong proficiency in PHP and Symfony, with solid knowledge of system and API design, design patterns, clean code practices, and Domain-Driven Design (DDD).
- Hands-on experience with AWS services such as EC2, S3, SQS, Lambda, DynamoDB, RDS, and IAM, plus familiarity with Kubernetes and serverless architectures.
- Strong debugging and profiling capabilities, including experience with tools such as Xdebug and Blackfire.
- Experience with CI/CD, automated testing, and application observability.
- Familiarity with JavaScript/TypeScript, Node.js, and frameworks such as ExpressJS or NestJS.
- Demonstrated daily use of AI in software development, with the ability to explain how AI is used, what tasks are delegated, and how outputs are validated; experience building AI/LLM-powered product features is a plus.
- Good understanding of application security and OWASP principles; familiarity with ISO 27001, SOC 2, or comparable security standards is advantageous.
- Strong product mindset and autonomy, with the ability to start from a problem, design a solution, make sound technical decisions, and drive delivery through production.
- Strong communication and collaboration skills, with the ability to contribute to technical discussions and work effectively across multidisciplinary teams.
Benefits
- Opportunity to work on a mature B2B workflow automation product used by customers worldwide.
- End-to-end ownership across product discovery, backend engineering, production operations, and continuous improvement.
- Hands-on exposure to workflow automation, document processing, e-signatures, enterprise integrations, offline synchronization, AWS, Kubernetes, and serverless technologies.
- Daily use and exploration of AI-powered engineering practices.
- Collaborative environment spanning backend, frontend, mobile, support, and other disciplines.
- Strong focus on technical mastery, ownership, innovation, and continuous learning.
- Opportunity to directly influence engineering practices, product improvements, and customer experiences.
- Culture that encourages fresh ideas, autonomy, knowledge sharing, and meaningful technical initiatives.
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How Jobgether Works
We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.
We appreciate your interest and wish you the best!
Why Apply Through Jobgether?
Data Privacy Notice: By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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