Software Architekt

Join a high-impact digital transformation project in the telecom industry and help design a modern, scalable architecture migrating from legacy Java systems to a Node.js/TypeScript ecosystem.

• Translate business vision into high-quality System Design Documents (SDD)
• Design scalable, distributed systems aligned with DDD and microservices architecture
• Define and implement architectural strategies such as:
  • BFF (Backend for Frontend)
  • Headless architecture
  • “Strangler Fig” migration pattern
• Use Agentic Augmentation (AI tools) to accelerate architecture design and bootstrap development (skeleton code, contracts, structures)
• Create clear architectural documentation using diagrams (flows, state machines, sequences)
• Design API contracts (contract-first approach) and ensure alignment between frontend and backend
• Support migration from legacy systems while ensuring continuity and minimizing risk
• Validate architecture through code reviews, spikes, and POCs
• Collaborate with business stakeholders to find optimal, pragmatic solutions
• Define best practices for repositories, CI/CD, and architectural governance

• 4+ years (Mid) / 5+ years (Senior) experience in software architecture
• Strong experience in distributed systems and system design
• Solid understanding of:
  • TypeScript, Node.js, React ecosystem
  • DDD, microservices, API-first design
  • Event-driven architecture and messaging systems
• Experience creating System Design Documents (SDD)
• Ability to translate business needs into technical architecture
• Experience or strong understanding of AI-supported development (Agentic workflows)
• Knowledge of architectural trade-offs (consistency vs availability, performance, scalability)
• Strong skills in visual communication (e.g. UML, BPMN, Mermaid, PlantUML)
• Understanding of security and resilience in system design
• English level B2+

• Experience with Java/Spring (legacy system migration)
• Knowledge of Kubernetes, Docker, Terraform or Pulumi
• Familiarity with OpenTelemetry (observability)
• Experience with GraphQL, CQRS, Event Sourcing
• Knowledge of headless commerce platforms
• Experience designing CI/CD pipelines and monorepo strategies
• Familiarity with TOGAF, Archimate, C4 model, ADRs

• Cooperation based on a B2B contract.
• Hybrid work from Warsaw (2 times a week in the office).
• The support of a dedicated mentor. In the relationship, we focus on direct communication. When you join speedapp, you will be put in touch with a dedicated mentor who will make sure that you enjoy working with us and with the client.
• Events and integration meetings, as well as participation in various initiatives, e.g., sports.
• Access to the benefits offering (medical care, life insurance, Multisport card).

Application: Apply and submit your CV.

After the application review, the recruiter will contact selected candidates by phone.

Screening: Have a conversation with a speedapp recruiter about your experience.

Next steps: The speedapp recruiter will explain the recruitment process for the specific position.

The speedapp recruiter will stay in touch with you throughout the entire process.

At speedapp, we believe that an organization is only as good as the people who make it up. We are a team of IT experts and other professionals working for our clients around the world (including Israel, Austria, USA). We go far beyond the HR category. We build IT teams and also help manage them.

👉 10 years of experience

👉 +100 clients worldwide 

+300 hires per year

💎 We have won the prestigious "Forbes Diamonds" award four times (2022, 2023, 2024, 2025). We are a member of the European Fast Growth Icons network and FinTech Poland. We are ranked 18th among the 100 fastest growing companies 2023 by Clutch.

Contact the recruiter responsible for this process directly.

Adrianna Rudzka
Junior IT Delivery Consultant
adrianna.rudzka@speedapp.pl
+48 884 271 647