Software Engineer

Synechron; Kraków; On-site; PLN 180,000 - 240,000; Full time

Job summary

Synechron, a global technology consulting firm, seeks a Software Engineer – Developer Platforms to design and build internal tooling and platform capabilities powering engineering teams. You will craft scalable backend services and APIs using Node.js and/or Java, work with PostgreSQL, and contribute to secure, observable, and well-documented solutions.

You’ll join a hands-on team, collaborating with architects and global stakeholders to translate requirements into reliable tooling, automate

Qualifications

• Strong software engineering skills in Node.js and/or Java.
• Experience with relational databases, especially PostgreSQL.
• Understanding of AI-enabled engineering practices and API design.
• Focus on security, reliability, and automation.

Responsibilities

• Design, build, and maintain internal tooling that supports architecture and platform initiatives.
• Develop scalable backend services and APIs using Node.js and/or Java.
• Work with PostgreSQL and other data sources with strong data modelling.
• Build and improve web UI components for architects and engineering teams.
• Apply agentic engineering practices to orchestrate autonomous AI agents for build/test/deploy use cases.
• Implement robust integration patterns, including MCP, tool/function calling, and API connectivity.
• Collaborate with architects, platform engineers, and stakeholders to translate needs into tech solutions.
• Ensure solutions meet security, resilience, performance, observability, testing, and documentation standards.
• Contribute to automation, code reviews, and operational support for live services.

Skills

Node.js

Java

PostgreSQL

API design

Security

Tools

PostgreSQL

Job description

Synechron is a global technology consulting firm that helps leading organizations accelerate digital transformation through innovation, expertise, and agility. With more than 16,500 professionals across around 60 offices in over 20 countries, we combine deep industry knowledge with advanced capabilities in AI, cloud, cybersecurity, and data engineering. Our regional teams, supported by strategic delivery centers, provide scalable, cost-efficient solutions tailored to local markets. Through our award-winning Synechron FinLabs accelerators and strategic partnerships with AWS, Microsoft, Databricks, Salesforce, and ServiceNow, we enable clients to innovate fast and lead with confidence. For more information on the company, please visit our website or LinkedIn community.

Diversity, Equity, and Inclusion:

Diversity & Inclusion are fundamental to our culture, and Synechron is proud to be an equal opportunity workplace and an affirmative-action employer. Our Diversity, Equity, and Inclusion (DEI) initiative ‘Same Difference’ is committed to fostering an inclusive culture – promoting equality, diversity and an environment that is respectful to all. We strongly believe that a diverse workforce helps build stronger, successful businesses as a global company. We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply. We empower our global workforce by offering flexible workplace arrangements, mentoring, internal mobility, learning and development programs, and more.

All employment decisions at Synechron are based on business needs, job requirements and individual qualifications, without regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.

Job Description:

We’re looking for a Software Engineer – Developer Platforms to help design and build the internal tools, services, and platform capabilities that power future-state architecture across engineering teams.

This is a hands-on engineering role for someone who enjoys solving complex platform challenges, building reliable backend systems, creating intuitive user experiences, and working with modern AI-driven engineering practices.

What you’ll do:

• Design, build, and maintain internal tooling that supports strategic architecture and platform initiatives
• Develop scalable backend services and APIs using Node.js and/or Java
• Work with PostgreSQL and other enterprise data sources, with a focus on strong data modelling and query performance
• Build and improve web UI components that enable smooth workflows for architects and engineering teams
• Apply agentic engineering practices to orchestrate autonomous AI agents for software build, test, and deployment use cases
• Implement robust integration patterns, including MCP, tool/function calling, and API-based connectivity
• Partner with architects, platform engineers, and stakeholders to translate business and architecture needs into technical solutions
• Ensure solutions meet high standards for security, resilience, performance, observability, testing, and documentation
• Contribute to continuous improvement through automation, code reviews, and operational support for live services

What you’ll bring:

• Strong software engineering skills in Node.js and/or Java
• Solid experience with relational databases, especially PostgreSQL
• Understanding of agentic application engineering and orchestration of AI agents
• Knowledge of integration patterns such as MCP, tool/function calling, and API design
• A strong production engineering mindset with focus on reliability, security, and automation
• Ability to contribute to solution design and internal platform architecture
• Strong communication skills and the ability to collaborate with global stakeholders

You’ll work on meaningful platform engineering challenges, help shape the future of internal developer tooling, and contribute to modern engineering practices that improve speed, quality, and scale across the organization.