122 580
18 317
PHP Senior / Lead Developer – Email & Performance Marketing Systems Miejsce pracy: Warszawa Technologies we use Expected JavaScript PyCharm Assembly MySQL PostgreSQL GraphQL PHP Symfony Operating system Windows About the project We are looking for a highly experienced Senior / Lead Developer who has a deep understanding of both technology and the business side of email marketing and performance marketing. The ideal candidate has at least 10 years of experience, excellent command of PHP, and hands-on experience with JavaScript, Python, large-scale databases, mailing tools (SARE, Elastic Email, other ESPs), API integrations, and mass mailing systems. 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. Location: Warsaw Work Setup: Remote or hybrid work Employment type: Contract of employment / B2B Rate: 1150 PLN/net/Day VAT Start date: depending on candidate availability Your responsibilities Design, develop, and maintain systems for mass email delivery, integrations, and processing large volumes of data (PHP / JavaScript / Python) 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 Monitor email deliverability (SPF, DKIM, DMARC, domain reputation, bounce management) 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 Our 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. Strong proficiency in JavaScript and Python (automation, scripting, pipelines) 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 What 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 Benefits sharing the costs of sports activities private medical care sharing the costs of professional training & courses life insurance remote work opportunities flexible working time dental care extra social benefits Cyclad 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. Please enclose the following statement in your application:I hereby give consent for my personal data contained in the submitted application documents to be processed by Cyclad sp. z o.o., ul. Chłodna 48/1, 00-872 Warszawa, including my image, in relation to my participation in the recruitment process. I acknowledge that the above consent may be withdrawn at any time. If you are interested in participating in future recruitment processes, please enclose the following statement in your application:I hereby give consent for my personal data contained in the submitted application documents to be processed by Cyclad Sp. z o.o., Cyclad sp. z o.o., ul. Chłodna 48/1, 00-872 Warszawa, including my image, in relation to my participation in future recruitment processes. I acknowledge that the above consent may be withdrawn at any time.The Personal Data Controller is Cyclad Sp. z o.o., ul. Chłodna 48/1, 00-872 Warszawa, e-mail: office@cyclad.pl, contact with the Data Protection Officer is available via e-mail: IOD@cyclad.pl. Personal data collected through job applications (CV) within the scope provided for in labor regulations shall be processed in order to allow performance of the ongoing recruitment pursuant to Art. 6(1)(a) of Regulation (EU) no. 2016/679 of the European Parliament and of the Council of 27 April 2016 on the protection of individuals with regard to the processing of personal data and on the free movement of such data, and repealing Directive 95/46/EC (further referred to as GDPR). In case of giving consent to processing of data for future recruitment processes – personal data shall be processed under theconsent, pursuant to Art. 6(1)(a) of the GDPR. If the Application form contains data referred to in Art. 9(1) of the GDPR, it shall be necessary to have the candidates consent for the processing of such data (Art. 9(2)(a) of the GDPR). The consent can be revoked at any time. Withdrawal of the consent shall not affectthe lawfulness of the processing that had been performed under the consent prior to its withdrawal. Personal data provided by the candidate related to:- participation in a selected recruitment process will be stored until the recruitment process is completed for a given position,- participation in future recruitment processes will be stored until the candidates consent to the processing of their data for this purpose is withdrawn, no longer, however, than for 5 years since the last update of the candidate’s data.Personal data may be disclosed to employees or associates of the Company, entities providing support to the Company on the basis of outsourced services or in accordance with data processing agreements, to entities authorized under the law, as well as to entities collaborating with the Company within the scope of job placement, in order to conduct recruitment processes. After the employee’s consent, personal data may also be disclosed to a potential employer for whom the recruitment process is being conducted.Submission of the candidate’s personal data within the scope under Art. 221 of the Labor Code is obligatory for participation in the recruitment process. Submission of other data by the candidate is voluntary. No submission of personal data within the required scope or objection to the processing ofsuch data shall result in lack of possibility to include the Application in the recruitment processes conducted by the Company.The candidate has the right to access and rectify the contents of their data, remove such data, limit its processing, transfer such data, submit objection to the processing and revoke the consent at any time, without affecting the lawfulness of the processing conducted under such consent before it waswithdrawn. The candidate also has the right to file a complaint with the President of the Office for Personal Data Protection when they consider the processing of their personal data to be a violation of the provisions of the GDPR.