Senior Software Engineer (Communications Platform)

Quick Facts

• Role: Senior Software Engineer (Communications Platform)

• Work location: 100% remote (Poland)

• On-call: Required

Description

Join the Communications team to build and modernize a highly available messaging platform that delivers billions of customer messages reliably and on time. As a senior backend engineer, you will shape multi-region, multi-tenant infrastructure, APIs, and vendor integrations for customer communication at scale.

Responsibilities

• Own quarterly technical goals for the communications area, solving ambiguous problems in messaging infrastructure.

• Design and evolve reliable backend services for high-volume communications across multi-region, multi-tenant environments (orchestration, delivery, preferences, templates, observability).

• Partner with product management, design, analytics, security, and engineering to balance technical constraints, risks, trade-offs, and customer impact.

• Design, implement, and operate resilient integrations with external messaging vendors, balancing reliability, latency, cost, and compliance.

• Proactively identify and resolve issues affecting scalability, developer experience, and operational resilience.

• Define service-level objectives and metrics, improve alerting and incident response, and participate in on-call.

• Improve engineering standards (design, testing, code review, rollouts, operations) and advocate through writing and tech talks.

• Mentor and develop team members via feedback, mentorship, and technical direction; lead by example.

Requirements

• 5+ years of experience in software development or engineering, with deep system design and architecture knowledge.

• Proficiency in Python, Kotlin, or similar modern programming languages.

• Track record of developing highly available distributed systems using AWS, MySQL, DynamoDB, and Kubernetes.

• Experience designing multi-region, multi-tenant platforms with strong isolation, scalability, failure recovery, and data-consistency guarantees.

• Experience integrating with third-party communications/messaging vendors and designing abstractions for differing capabilities, rate limits, and failure modes.

• Ability to plan and deliver significant features/components with an elegant, simple, extensible design; write high-quality, easily understood code.

• Proficiency making significant changes in large codebases using safe tools and practices.

• Proficiency using AI-assisted development tools and validating outputs appropriately.

• Ownership mindset with proactive feedback-seeking for growth.

• Strong verbal and written communication skills for collaboration with a global engineering team.

• Participate in an on-call rotation.

Benefits

• Base pay plus equity from the parent company, with comprehensive benefits.

• Paid time off, paid public holidays, and additional Away Days.

• 100% subsidized private medical coverage (Lux Med Platinum), dental and vision for you and dependents.

• MultiSport card, learning and development programs, family healthcare support, parental leave support, and mental well-being support.

• Financial well-being support, employee resource groups, and possible creative tax benefits (subject to policy and law).

• Technology and well-being reimbursement through flexible spending wallets up to 1,390 zł per month.