About the Position

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Engineers. Not developers.

We have a strong engineering culture. Solidgate engineers don't maintain systems - they design them. Every architectural decision matters. Every line of code moves the business forward.

We embrace DevOps principles with CI/CD, infrastructure as code (Terraform, AWS Fargate), comprehensive monitoring (Grafana, VictoriaMetrics, VictoriaLogs), and site reliability engineering. Our technology stack includes Go, Kotlin, Python, Node.js, React, TypeScript, RDS, Kafka, and AWS cloud infrastructure.

Life on the engineering team

A sneak peek at our tech stack

Check out the full version of the Tech Radar using the button below

Tech radar page

• Hold
• Assess
• Trial
• Adopt
• Adopt
• Trial
• Assess
• Hold

Adopt

• 1.ElasticSearch

• 2.Kafka

• 3.OpenSearch

• 4.PostgreSQL

• 5.RabbitMQ

• 6.Redis

• 7.SQS

• 8.MongoDB

• 9.MySQL

Adopt

• 10.Blue-Green deployment
• 11.Buf (gRPC)
• 12.Buf (gRPC) Registry
• 13.ChatGPT
• 14.CodeRabbit
• 15.Confluence
• 16.Gemini
• 17.Github Copilot
• 18.GitOps
• 19.golangci-lint
• 20.Jira
• 21.TBD

Trial

• 22.bufbuild/protovalidate

• 23.Cursor

• 24.OpenAPI

Adopt

• 25.Apache Airflow
• 26.AWS
• 27.Docker
• 28.GitLab
• 29.GitLab CI/CD
• 30.Grafana
• 31.Loki
• 32.Terraform
• 33.VictoriaMetrics

Assess

• 34.Kubernetes

Adopt

• 35.Fastify
• 36.Go
• 37.Go PGX
• 38.Kotlin
• 39.Python
• 40.React
• 41.Spring
• 42.Task
• 43.TypeScript

Trial

• 44.Astro

• 45.Echo v4

• 46.GORM

• 47.Hugo

• 48.JavaScript

• 49.Ktor

• 50.Make

• 51.PHP

• 52.Redux

• 53.Shell

• 54.Symfony

Minds behind the code

Product Platform

Builds the core platform every product team runs on, setting the architectural baseline so teams focus on outcomes, not complexity. Teams: Platform, Web Platform, Data Engineering, Platform Analytics.

Payment Infra

Builds the payment engine - orchestration, integrations, and global routing - where we win or lose milliseconds, conversion, margin, and scale. Teams: Connectors, APMs, Reconciliation.

Infra Stream

Keeps everything fast, reliable, and shippable through CI/CD, monitoring, security, and automation - the force multiplier for safer velocity.

Orchestration

Builds the payment router with intelligent routing across PSPs and methods for NA, EU, and LatAm, where we win or lose conversion, margin, and merchant trust. Teams: Connectivity, Routing, Core.

Billing

Builds the subscription engine across the full lifecycle - renewals, upgrades, cancellations, and revenue recovery - where we win or lose LTV, churn, and merchant growth. Teams: Tax, Subscriptions.

Risk Systems

Builds the fraud prevention engine with advanced detection, dispute logic, and real-time automated prevention, where we win or lose merchant trust, transaction safety, and financial resilience. Teams: Launch, Dispute Management.

Product Operations

Teams: Product Design, Tech Writers.

Standalone Teams

Treasury, Finance Engineering, Information Security.

Product Platform

Builds the core platform every product team runs on, setting the architectural baseline so teams focus on outcomes, not complexity. Teams: Platform, Web Platform, Data Engineering, Platform Analytics.

Payment Infra

Builds the payment engine - orchestration, integrations, and global routing - where we win or lose milliseconds, conversion, margin, and scale. Teams: Connectors, APMs, Reconciliation.

Infra Stream

Keeps everything fast, reliable, and shippable through CI/CD, monitoring, security, and automation - the force multiplier for safer velocity.

Orchestration

Builds the payment router with intelligent routing across PSPs and methods for NA, EU, and LatAm, where we win or lose conversion, margin, and merchant trust. Teams: Connectivity, Routing, Core.

Billing

Builds the subscription engine across the full lifecycle - renewals, upgrades, cancellations, and revenue recovery - where we win or lose LTV, churn, and merchant growth. Teams: Tax, Subscriptions.

Risk Systems

Builds the fraud prevention engine with advanced detection, dispute logic, and real-time automated prevention, where we win or lose merchant trust, transaction safety, and financial resilience. Teams: Launch, Dispute Management.

Product Operations

Teams: Product Design, Tech Writers.

Standalone Teams

Treasury, Finance Engineering, Information Security.

What to expect

After you apply, we look beyond your résumé. At Solidgate, we hire product engineers, people who think in outcomes, not just code. The process may evolve, but here's what it typically looks like:

1. Apply
2. Recruiter Screen
3. Tech/Architecture Interview
4. Test Assessment (Optionally)
5. Soft Skills Interview
6. Bar-raising with CEO
7. Reference Check
8. Offer

Application Security Engineer

Locations

• Warsaw, Europe
• Nicosia, Europe
• Lviv, Europe
• Remote

About the Role

We are seeking an Application Security Engineer to join our Engineering & Data team in Warsaw, Europe, Nicosia, Lviv, or remotely.

Responsibilities

• Conduct security assessments and penetration testing
• Develop and implement security policies and procedures
• Collaborate with development teams to integrate security practices
• Monitor and respond to security incidents

Requirements

• Proven experience in application security
• Strong understanding of security frameworks and standards
• Excellent problem-solving and analytical skills
• Experience with security tools and technologies

We Offer

• Competitive salary
• Opportunity to work with cutting-edge technologies
• Collaborative and innovative work environment

Join our talent community!

Join now