PHP Senior Developer

Cyclad Sp. z o.o.; Remote; PLN 120,000 - 180,000; Full time

Job summary

A leading IT service provider is seeking a PHP Senior/Lead Developer to manage and optimize email performance marketing systems. The role requires a minimum of 10 years of experience in software development, including expert-level knowledge of PHP and large-scale email delivery. Responsibilities include handling OVH environments, mentoring team members, and designing API integrations. Competitive compensation and flexible working models are offered, either through employment contracts or B2B engagements.

Benefits

Competitive compensation

Flexible working model

Professional development budget

Qualifications

• Proven experience with large-scale email delivery (millions of emails per day).
• Hands-on experience with OVH infrastructure management.
• Expert-level knowledge of email marketing technologies and processes.

Responsibilities

• Manage and administer OVH environments including servers, DNS, and backups.
• Configure, monitor, and optimize mass email campaigns.
• Integrate with ESPs for email performance.

Skills

Strategic thinking

Analytical thinking

Business-oriented thinking

Collaboration

Mentoring

Education

10+ years of experience as a software developer/system architect

Tools

PHP (Symfony)

MySQL

PostgreSQL

Assembla

OVH infrastructure

Job description

PHP Senior / Lead Developer – Email & Performance Marketing Systems

In Cyclad we work with top international IT companies in order to boost their potential in delivering outstanding, cutting-edge technologies that shape the world of the future.

This role requires strategic, analytical, and business-oriented thinking, as well as the ability to respond quickly to technical issues and coordinate activities in a high-scale, production-critical environment.

Project information:

• Location: Warsaw
• Work Setup: Remote or hybrid work
• Employment type: Contract of employment / B2B
• Rate: 1150 PLN/net/Day + VAT

Project scope:

• Manage and administer OVH environments (dedicated servers, VPS, DNS, backups)
• Work with and administer Assembla repositories, including version control, code reviews, and CI/CD pipelines
• Integrate with ESPs such as SARE, Elastic Email, SendGrid, Mailgun, or similar email platforms
• Configure, monitor, and optimize mass email campaigns (scheduling, throttling, IP warm-up, sender reputation)
• Design and maintain automation processes (CRON jobs, webhooks, ETL processes, workflows)
• Work with large databases (MySQL / PostgreSQL), including:
  • deduplication, data corrections, and sanity checks
  • data cleansing and segmentation mechanisms
  • query and index optimization
  • backup and data recovery mechanisms
• Respond to incidents and technical issues in real time (alerts, sending errors, integration/API failures)
• Build tools to automate marketing and performance workflows
• Design integrations with CRM/CDP systems, advertising platforms, and analytics tools
• Collaborate closely with marketing, data, and business teams to translate campaign objectives into technical solutions
• Mentor team members, perform code audits, and co-design system architecture

Requirements:

• Minimum 10 years of experience as a software developer and/or system architect
• Proven experience handling large-scale email delivery (millions of emails per day)
• Expert‑level knowledge of PHP (Symfony) in production environments.
• Hands‑on experience with OVH infrastructure, including configuration and maintenance
• Experience with Assembla or similar repository and project management systems
• Deep expertise in email marketing technologies and processes, including:
  • SARE, Elastic Email, SendGrid, Mailgun (or similar ESPs)
  • delivery mechanisms, throttling, IP warm‑up
  • deliverability and DNS (IMAP, SMTP SPF / DKIM / DMARC)
  • tracking and measurement systems
• Strong knowledge of MySQL / PostgreSQL, including:
  • record deduplication
  • optimization of large tables
  • backups, replication, and data recovery
• Experience designing and maintaining API integrations (REST / GraphQL) and automated workflows
• Excellent analytical skills with the ability to combine technical and business perspectives
• Strong collaboration, communication, and mentoring skills
• Ability to quickly diagnose and resolve issues in production environments
• Knowledge of GDPR and data security best practices for email marketing

We offer:

• Competitive compensation with flexible engagement models (employment contract or B2B)
• Real influence on architecture, processes, and technology in a key business area
• Work on large-scale data platforms and projects with direct business impact
• Access to modern tools, a professional development budget, and innovative technologies
• Flexible remote or hybrid working model
• Collaboration with experienced professionals in marketing, technology, and analytics