Senior Software Engineer

Lodzplus; Łódź; Hybrid; PLN 120,000 - 180,000; Full time

Job summary

All Together, Extraordinary Aduna is the Connector of networks, bringing together leading telecom operators and technology partners to simplify global access to Network APIs. As a Software Developer on the Traffic Plane team, you will be a key technical contributor for the systems connecting Aduna to CSP Service Exposure APIs, aggregating and exposing Aduna APIs to Application Service Providers.

This is a hands-on technical role with meaningful influence on system design and engineering

Responsibilities

• Contribute to the technical direction and architectural decisions for API aggregation.
• Participate in and lead design reviews for API aggregation: Service Exposure connectors, Authentication and Authorization, observability, logging, security and metering.
• Apply and help evolve technical standards and best practices; evaluate new technologies and propose improvements to the API aggregation.
• Identify risks and contribute to architectural improvements addressing scalability, resilience, and operational complexity.
• Tackle complex technical problems spanning Aduna services, CSP Service APIs, and external partners; contribute to incident investigations and drive corrective actions to completion.
• Optimize end-to-end request flows, identify performance bottlenecks, and evolve the architecture for high throughput and low latency.
• Collaborate with Product to translate business goals into technical solutions; improve developer productivity through better tooling, CI/CD, and automation.
• Mentor engineers on system design, operational excellence, and technical decision making.
• Raise the engineering bar through code reviews, design feedback, knowledge sharing, and promoting rigor in testing, observability, and security.

Job description

All Together, Extraordinary Aduna is the Connector of networks, bringing together leading telecom operators and technology partners to simplify global access to Network APIs. Through a single, unified platform, we enable businesses and developers to build more secure, seamless and innovative digital services.

As a Software Developer on the Traffic Plane team, you will be a key technical contributor for the systems connecting Aduna to CSP Service Exposure APIs, aggregating and exposing Aduna APIs to Application Service Providers. You’ll contribute to architecture decisions, lead complex engineering work, and collaborate closely with Engineering, Product, SRE, Security, and external CSP counterparts.

This is a hands-on technical role with meaningful influence on system design and engineering standards — no people management, but active participation in technical discussions, mentorship of junior engineers, and cross-team collaboration are expected.

What You’ll Do

Technical Leadership & Architecture

• Contribute to the technical direction and architectural decisions for Aduna’s API aggregation
• Participate in and lead design reviews for API aggregation: Service Exposure connectors, Authentication and Authorization, observability, logging, security and metering.
• Apply and help evolve technical standards and best practices; evaluate new technologies and propose improvements to the API aggregation.
• Identify risks and contribute to architectural improvements addressing scalability, resilience, and operational complexity.

Complex Problem Solving & Delivery

• Tackle complex technical problems spanning Aduna services, CSP Service APIs, and external partners; contribute to incident investigations and drive corrective actions to completion.
• Optimize end-to-end request flows, identify performance bottlenecks, and evolve the architecture for high throughput and low latency.
• Collaborate with Product to translate business goals into technical solutions; improve developer productivity through better tooling, CI/CD, and automation.

Mentorship & Technical Culture

• Mentor engineers on system design, operational excellence, and technical decision making.
• Raise the engineering bar through code reviews, design feedback, knowledge sharing, and promoting rigor in testing, observability, and security.