Principal Engineer - Consumer & Merchant Experience

InPost; Warszawa, Kraków; Hybrid; PLN 360,000 - 600,000; Full time

Benefits offered by this job

Flexible hours

B2B contract

Training opportunities

International environment

Job summary

InPost is seeking a Principal Engineer to join the Consumer & Merchant Experience team. The role is a senior IC with global scope, shaping long-term technology direction and solving complex problems across domains.

You will influence architectural standards, lead cross-team initiatives, mentor engineers, and collaborate with the CTO and product teams to drive customer-focused platform delivery.

Qualifications

• 10+ years of experience designing and developing large-scale distributed systems.
• 3+ years of technical impact beyond a single team in a Staff/Principal/Architect or equivalent role.
• Experience making architectural decisions with long-term impact across multiple teams.
• Strong English proficiency (C1) in a technical environment.

Responsibilities

• Define architectural standards across the technology organization.
• Lead cross-team and cross-domain technical initiatives.
• Mentor Staff Engineers and help develop the next generation of technical leaders.
• Represent InPost in the engineering community through conferences, publications and industry initiatives.
• Work with technical and business stakeholders to connect architectural direction with product needs.
• Support technical due diligence related to strategic partnerships and M&A.

Skills

Distributed systems

Staff/Principal level

AI tooling

Public cloud

Stakeholder communication

Tools

Java

GitHub Copilot

ChatGPT

Claude

Job description

Principal Engineer - Consumer & Merchant Experience

• Full-time

InPost Groupis an innovative European out of home deliveries company, revolutionizing the way parcels are delivered to customers. With operations across several countries, our network of intelligent lockers provides customers with a fast, convenient, and secure delivery option. InPost Group is a publicly traded company, with a market capitalization of about $5 billion as of March 2023. With over10,000 people worldwide, InPost Group is one of the largest out of home delivery providers in Europe, committed to providing sustainable and efficient delivery solutions to meet the evolving needs of customers in today's rapidly changing landscape.

We are a team that builds the best FMCG e-commerce in Poland.We already have over300,000 productsin our offer, we work with over300 sellers, and our mobile application has already been downloaded by almost1.5 million users in Poland. Due to the fact that our product consists of many elements that must work together efficiently and be managed effectively,we are looking for experienced consumer-focused (Web / Mobile App products) engineering leaders to join us in that journey- heavily influence our future platform build, improve processes and help us deliver best customer experience in the market across all types of devices.

We are looking for a Principal Engineer to join our Consumer & Merchant Experience area at InPost Technology.

This is a senior Individual Contributor role with an international scope and organization-wide impact. You will help define the long-term technology direction, shape architectural standards and solve complex technical problems spanning multiple teams and domains.

You will work closely with Senior Engineering Directors, Engineering Managers, Staff and Principal Engineers, product teams and our CTO. This is not a people management position. Your impact will come from technical leadership, strategic thinking and the ability to influence decisions without formal authority.

You will operate in a large and complex technology environment, supporting customer-facing products across multiple markets. The role combines defining target architecture with the practical challenge of moving away from legacy solutions while maintaining product delivery and software quality.

You will:

• define architectural standards across the technology organization;
• identify and address systemic technical challenges spanning multiple domains;
• shape engineering principles, practices and technology standards;
• contribute to the organization’s technology strategy for AI;
• lead cross-team and cross-domain technical initiatives;
• mentor Staff Engineers and help develop the next generation of technical leaders;
• support technical due diligence related to strategic partnerships and M&A;
• represent InPost in the engineering community through conferences, publications and industry initiatives;
• work with technical and business stakeholders to connect architectural direction with product needs.

We are looking for someone who has:

• 10+ years of experience designing and developing large-scale distributed systems;
• 3+ years of technical impact beyond a single team, in a Staff Engineer, Principal Engineer, Architect or equivalent role;
• experience making architectural decisions with long-term impact across multiple teams;
• a strong engineering background and the ability to engage in detailed technical discussions, even though regular hands-on coding will not be the primary focus of the role;
• experience building customer-facing products and influencing their technical and product direction;
• experience establishing engineering standards and mentoring senior engineers;
• proficiency in leveraging AI tools and large language models (e.g., GitHub Copilot, ChatGPT, Claude) to enhance productivity, accelerate development, and solve complex problems.
• ability to critically evaluate AI-generated outputs and apply them responsibly within professional workflows.
• experience working with public cloud and cloud-native architectures;
• strong knowledge of scalability, reliability, observability, APIs and system integration;
• the ability to communicate effectively with both engineering teams and C-level stakeholders;
• professional proficiency in English at C1 level.

Nice to have

• Experience in logistics, e-commerce or marketplace environments.
• Experience with on-premises to cloud migrations.
• Knowledge of security and data protection.
• Experience with payment, notification or tracking systems, including event-driven and real-time architectures.
• Experience working in an international environment.
• Previous experience in a managerial role.
• Cloud certifications, such as GCP Professional Cloud Architect.

Java is our preferred backend technology, but we are open to candidates from other backend ecosystems. What matters most is your depth of engineering experience, architectural judgment and track record of working with complex systems at scale.

Experience with mobile and web applications will be valuable, as the role is strongly connected to customer-facing products

• Opportunity to work in adiverse,international, andcross-functional environment,along with leadingexperts.
• You work and learn from a senior leader and their leadership team, expanding your experience and exposure in the e-commerce and logistics industries.
• InPost is a growing company that offers its people an increasing number of opportunities in several locations in Europe.
• Fulfilling careers with arange of benefitsfor people and investing in providingtraining opportunitiesfor their development.
• You will feel a part of the InPost community that makes an impact on sustainability, convenient deliveries, and the circular economy every day.
• Excellent working environment and flexible hours
• We offer B2B type of contract

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