Senior Software Engineer — Control Plane API IRC308322

GlobalLogic Inc.; Szczecin; Hybrid; PLN 180,000 - 240,000; Full time

Job summary

GlobalLogic Inc. in Szczecin, Poland, seeks an experienced Backend Engineer to design and maintain mission-critical Control Plane APIs and distributed services powering cloud networking.

You will work on IPAM, VPC, and orchestration workflows using an asynchronous Python stack (Flask, SQLAlchemy, Celery, Redis) to deliver scalable, highly available software. The role requires 5+ years in backend engineering for distributed systems, strong Python expertise, and solid networking fundamentals.

Qualifications

• Bachelor’s degree in Computer Science, Computer Engineering, or equivalent practical experience.
• 5+ years of production experience in backend software engineering for distributed systems and control plane platforms.
• Strong proficiency in Python and its ecosystem, with hands-on experience in Flask, SQLAlchemy, Celery, Redis, and MySQL.
• Strong foundation in core Internet and networking fundamentals: TCP/IP, IPv4 (DHCP), IPv6 (DHCPv6), DNS / rDNS, HTTP, BGP, and ICMP.
• Working knowledge of cloud infrastructure primitives: Virtual Private Cloud (VPC), IP Address Management (IPAM), IAM, Observability, and Billing.
• Proven track record of independently navigating complex, legacy, or partially documented codebases, delivering meaningful contributions within the first 4–6 weeks.
• Rigorous written communication and documentation hygiene.

Responsibilities

• Design, build, test, and maintain robust, high-performance Control Plane APIs and background task pipelines using Flask, SQLAlchemy, Celery, and Redis.
• Implement core cloud networking functionalities across IPAM allocation engines, VPC routing interfaces, and multi-tenant billing/IAM boundaries.
• Troubleshoot and resolve concurrency, latency, and consistency issues across distributed MySQL and Redis backends.
• Establish clear system documentation, updating architectural sources of truth, internal runbooks, and API specifications to ensure frictionless handoffs.
• Communicate status, blockers, and architectural trade-offs proactively and asynchronously through structured status updates and detailed PR descriptions.
• Adapt to evolving project milestones and shift across multiple concurrent workstreams without losing delivery momentum.

Skills

Celery (Python)

Distributed Systems Design

Flask

IPv4

IPv6

MySQL

Python

Redis

SQLAlchemy (Python)

TCP/IP

VPC

Education

Bachelor’s degree in Computer Science, Computer Engineering, or equivalent practical experience

Tools

Celery

Flask

SQLAlchemy

Redis

MySQL

Job description

Function: IT, Telecom & Internet

Experience: 5-10 years

Location: Poland - Szczecin

Skills: Celery (Python), Distributed Systems Design, Flask, IPv4, IPv6, MySQL, Python, Redis, SQLAlchemy (Python), TCP/IP, VPC

Join the Athena Platform Networking Team dedicated to building and scaling the next generation of global cloud infrastructure control plane APIs. In this role, you will be directly responsible for the backend services that manage compute connectivity, network provisioning, and cloud resource management, delivering resilient, highly available software in a dynamic distributed systems environment.

Requirements

Role Summary: Drive the design, implementation, and enhancement of mission-critical Control Plane APIs and distributed backend services powering core cloud networking. This role focuses on scaling high-throughput API endpoints, IPAM, VPC, and orchestration workflows within an asynchronous Python backend stack, requiring an engineer who can ramp up rapidly in an unfamiliar codebase and deliver production-grade features within an agile, evolving architecture.

Requirements:

• Bachelor’s degree in Computer Science, Computer Engineering, or equivalent practical experience.
• 5+ years of production experience in backend software engineering for distributed systems and control plane platforms.
• Strong proficiency in Python and its ecosystem, with hands-on experience in Flask, SQLAlchemy, Celery, Redis, and MySQL.
• Strong foundation in core Internet and networking fundamentals: TCP/IP, IPv4 (DHCP), IPv6 (DHCPv6), DNS / rDNS, HTTP, BGP, and ICMP.
• Working knowledge of cloud infrastructure primitives: Virtual Private Cloud (VPC), IP Address Management (IPAM), IAM, Observability, and Billing.
• Proven track record of independently navigating complex, legacy, or partially documented codebases, delivering meaningful contributions within the first 4–6 weeks.
• Rigorous written communication and documentation hygiene: writing thorough pull request descriptions, architecture decision records, clear READMEs, and structured handoff documentation.
• Time zone flexibility with sufficient working overlap during US Eastern Time (ET) business hours.

Nice to have:

• Hands-on experience with modern observability stacks: OpenTelemetry (OTEL), Grafana, Loki, and VictoriaMetrics.
• Exposure to configuration management platforms (particularly SaltStack).
• Experience with distributed task queues, event-driven architectures, and high-availability database replication.
• Practical experience leveraging modern AI developer tools (GitHub Copilot, Claude, Gemini) to accelerate testing, code quality, and delivery cycles.

Job responsibilities

• Design, build, test, and maintain robust, high-performance Control Plane APIs and background task pipelines using Flask, SQLAlchemy, Celery, and Redis.
• Implement core cloud networking functionalities across IPAM allocation engines, VPC routing interfaces, and multi-tenant billing/IAM boundaries.
• Troubleshoot and resolve concurrency, latency, and consistency issues across distributed MySQL and Redis backends.
• Establish clear system documentation, updating architectural sources of truth, internal runbooks, and API specifications to ensure frictionless handoffs.
• Communicate status, blockers, and architectural trade-offs proactively and asynchronously through structured status updates and detailed PR descriptions.
• Adapt to evolving project milestones and shift across multiple concurrent workstreams without losing delivery momentum.

What we offer

Empowering Projects: With 500+ clients spanning diverse industries and domains, we provide an exciting opportunity to contribute to groundbreaking projects that leverage cutting-edge technologies. As a team, we engineer digital products that positively impact people’s lives.

Empowering Growth: We foster a culture of continuous learning and professional development. Our dedication is to provide timely and comprehensive assistance for every consultant through our dedicated Learning & Development team, ensuring their continuous growth and success.

DE&I Matters: At GlobalLogic, we deeply value and embrace diversity. We are dedicated to providing equal opportunities for all individuals, fostering an inclusive and empowering work environment.

Career Development: Our corporate culture places a strong emphasis on career development, offering abundant opportunities for growth. Regular interactions with our teams ensure their engagement, motivation, and recognition. We empower our team members to pursue their career goals with confidence and enthusiasm.

Comprehensive Benefits: In addition to equitable compensation, we provide a comprehensive benefits package that prioritizes the overall well-being of our consultants. We genuinely care about their health and strive to create a positive work environment.

Flexible Opportunities: At GlobalLogic, we prioritize work-life balance by offering flexible opportunities tailored to your lifestyle. Explore relocation and rotation options for diverse cultural and professional experiences in different countries with our company.

About GlobalLogic

GlobalLogic, a Hitachi Group Company, is a trusted digital engineering partner to the world’s largest and most forward-thinking companies. Since 2000, we’ve been at the forefront of the digital revolution – helping create some of the most innovative and widely used digital products and experiences. Today we continue to collaborate with clients in transforming businesses and redefining industries through intelligent products, platforms, and services.