May 22, 2026
Senior Frontend Developer with AWS (f/m/x)
Senior • On-site
Warsaw, Poland
We are looking for a highly experienced Software Engineer with strong expertise in modern front-end technologies and cloud-based solutions. In this role, you will be responsible for designing and delivering scalable, high-quality applications in a highly collaborative and fast-paced environment. The position requires regular on-site presence and the ability to communicate effectively in English with both technical and non-technical stakeholders. Depending on your strengths, we welcome candidates with either deep front-end specialization or strong hands-on experience in cloud engineering, ideally combining both.
Your tasks
Develop and maintain applications using modern front-end technologies and strongly typed languages
Design and implement scalable cloud-based architectures, including serverless solutions
Build and integrate RESTful services to support application functionality
Work with both relational and non-relational databases to manage and process data effectively
Create and optimize automated deployment pipelines for continuous integration and delivery
Collaborate with stakeholders to translate business requirements into technical solutions
Requirements
Minimum 8 years of commercial experience in software development using modern programming languages
Strong hands-on expertise in either front-end development (including component-based frameworks) or cloud engineering (AWS)
Practical experience designing and delivering cloud-native applications, preferably in a serverless environment
Solid understanding of API design principles and best practices for distributed systems
Experience working with CI/CD pipelines and deployment automation tools
Excellent communication skills with the ability to explain technical concepts clearly, and fluency in English
What we offer
Great Place to Work since 2015 - it’s thanks to feedback from our workers that we get this special title and constantly implement new ideas
Employment stability - revenue of PLN 2.1BN, no debts, since 2006 on the market
We share the profit with Workers - over PLN 76M has already been allocated for this aim since 2022
Attractive benefits package - private healthcare, benefits cafeteria platform, car discounts and more
Comfortable workplace – class A offices or remote work
Dozens of fascinating projects for prestigious brands from all over the world
PLN 1 000 000 per year for your ideas - with this amount, we support the passions and voluntary actions of our workers
Investment in your growth – meetups, webinars, training platform and technology blog – you choose
Fantastic atmosphere created by all Sii Power People
If you want to work on systems with high operational significance — apply now!
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