Senior Software Engineer (Kong API Gateway)

Quick Facts

• Role: Senior Software Engineer supporting enterprise API management using Kong API Gateway

• Focus: Backend applications, serverless components, microservices, and API security/integration

Description

This role supports the CTO’s office by designing and developing backend systems that power enterprise-grade API management, security, and integrations using Kong API Gateway. You will build REST APIs, serverless functions, and microservices, and implement robust API security. The role also includes CI/CD and GitOps support plus production monitoring and troubleshooting.

Responsibilities

• Design and develop backend applications, serverless functions, and microservices for enterprise API management

• Build and maintain REST APIs and API management solutions using Kong API Gateway and Kong Konnect

• Develop and deploy serverless components using AWS Lambda

• Collaborate in a SCRUM team using Agile methodology

• Implement API security measures: OAuth 2.0, OpenID Connect (OIDC), JWT, SSL/TLS, and mTLS

• Support CI/CD pipelines and GitOps practices for continuous deployment

• Monitor and troubleshoot production systems using CloudWatch and Splunk

Requirements

• Bachelor’s degree in Computer Science or related field; Master’s degree is a plus

• 5+ years of experience designing and developing backend applications, serverless architectures, microservices, REST APIs, and API management solutions

• Practical experience with Kong API Gateway, Kong Konnect, REST APIs, API Management, and API Security

• Proficiency in Node.js and/or Python

• Knowledge of AWS services: ECS, S3, Lambda, CloudFormation, Route 53, IAM, Secrets Manager

• Experience with DevOps and observability tools (e.g., Docker, Kubernetes, GitOps, CI/CD pipelines, Bash, CloudWatch, Splunk)

• Experience with OAuth 2.0, OIDC, JWT, SSL/TLS, and mTLS

• Experience working in a SCRUM team and Agile methodology

• Excellent communication skills in fluent English and ability to work in a client-facing capacity

Benefits

• Hybrid-by-design work model with opportunity to work remotely within Poland

• Chance to work abroad up to 60 days annually

• Relocation opportunities (business-driven)

• Career development programs, mentoring, soft skills and well-being programs

• Certifications (Anthropic, Gemini, GCP, Azure, AWS)

• English classes

• Stable pay

• Employee Stock Purchase Plan with a 15% discount

• Benefits package (health insurance, multisport, shopping vouchers)

• Referral bonuses up to $2,000

• Offices with entertainment and relaxation zones, table tennis and football, free snacks and coffee

• Corporate, social and well-being events (benefits apply to employees only)

• B2B contractors supported (terms agreed individually)