Senior Symfony Engineer (PHP backend)

About Paysera

Paysera is the first fintech company in Lithuania and an EU-licensed e-money institution. We provide fast, convenient, and affordable financial services globally. Our services range from a payment gateway for e-shops, a finance management app, money transfers, and a parcel locker network.

With over 1 million app downloads and growing, we aim to become an industry-leading super app that provides financial and lifestyle services across the globe. At Paysera, we are a start-up-minded team, which means we thrive in a fast-paced environment and seek open communication while placing great focus on upholding our core company values. Join our vibrant international team of over 800+ people across 20+ cities, worldwide.

Role Overview

• Title : Senior Backend Engineer (PHP / Symfony)
• Level : Senior / Senior+
• Reports To : Head of Backend Development
• Purpose : To design, build, and maintain scalable, fault-tolerant backend systems that power Paysera's financial services, ensuring security, compliance, and high performance.

Key Responsibilities

[R1] Design, build, and maintain high-throughput backend services using PHP and Symfony.

[R2] Develop and maintain RESTful APIs, microservices, and asynchronous workflows.

[R3] Design, implement, and optimize scalable data solutions, including relational databases for high-volume workloads.

[R4] Manage in-memory stores and search engines.

[R5] Apply DDD, SOLID, and event-driven principles to model complex financial domains.

[R6] Ensure code quality with unit testing and code review practices.

[R7] Integrate and extend financial systems and third-party services securely and compliantly.

[R8] Collaborate closely with product managers, architects, and other developers to ship secure, compliant, and auditable code.

[R9] Champion AI-assisted engineering by leveraging tools to accelerate development — while maintaining rigorous code quality and review standards.

[R10] Mentor peers, participate in code reviews, and foster a culture of knowledge sharing, security, and continuous improvement.

Must-Have Qualifications

[Q1] 7+ years of professional backend development experience, with at least 3+ years in enterprise-grade projects.

[Q2] Hands-on expertise with PHP 8.2+ and Symfony 6+.

[Q3] 3+ years working with microservices architecture and distributed systems.

[Q4] Proficiency in MySQL / PostgreSQL with evidence of optimizing schemas for high-volume workloads.

[Q5] Hands-on experience with Redis and ElasticSearch for high-volume environments.

[Q6] Knowledge of Kafka, RabbitMQ (event-driven architecture).

[Q7] Proven skills in Dockerized environments and container workflows.

[Q8] Strong knowledge of DDD, SOA, SOLID, and event-driven architecture principles.

[Q9] Strong testing culture with PHPUnit, code quality tools (PHPStan, PHP CS Fixer).

[Q10] Strong debugging skills and experience with monitoring tools (Sentry, Graylog, Grafana, Kibana).

[Q11] Proficiency in OAuth2 / JWT authentication.

[Q12] Understanding of PSR standards.

[Q13] Fluency in English (B2 level) — written and verbal.

[Q14] Experience using AI-assisted development tools (ChatGPT, Claude Code, Cursor) in daily coding workflows.

Nice-to-Have Qualifications

[N1] Experience with Kubernetes, Helm, and GitOps workflows.

[N2] Hands-on exposure to high-load systems.

[N3] Familiarity with additional languages (Java, Kotlin, Golang).

[N4] Contributions to open-source PHP projects or internal libraries.

[N5] Experience with SOAP / XML-based services in enterprise contexts.

[N6] Experience with front-end technologies and frameworks.

Domain Expertise (Fintech Superpowers — Big Plus!)

[N7] Core banking : Payments, multi-currency, account management.

[N8] Compliance : KYC / AML workflows, sanctions screening, audit trails, FATCA / CRS reporting.

[N9] Financial standards : SEPA, SWIFT, ISO20022, PSD2.

[N10] Risk & Fraud : Transaction monitoring, anomaly detection, rule engines.

[N11] Financial security : PCI-DSS, tokenization, secure key management.

[N12] High-volume processing : Asynchronous queues, batch processing.

[N13] E-commerce & Payments : Payment gateway integrations, card processing integrations, large-scale e-commerce platforms.

Work Conditions & Contract Info

[W1] Employment type : Full-time, permanent contract.

[W2] Work arrangement : Office.

[W3] Core hours : Business hours aligned with CET / EET.

[W4] Compensation : Range TBD (provided by employer).

[W5] Start date : As soon as possible.

[W6] Contract length : Indefinite.

Skills Required

Kibana, Ddd, Postgresql, Kafka, Grafana, Elasticsearch, Graylog, Docker, Mysql, Phpunit, Oauth2, Sentry, Soa, Jwt, Redis, Rabbitmq, Distributed Systems, Solid