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Senior Backend Engineer – Java / Kotlin

Westcode Zobacz wszystkie oferty

170 - 220 PLN / godzinę

Wrocław

Kraków

Gdańsk

Poznań

14 dni temu

W skrócie

Senior Backend Engineer sought for Java/Kotlin roles in banking/finance. Build microservices, event-driven systems, and integrate financial platforms. Requires 5+ years experience, strong Java/Kotlin, Spring Boot, Kafka, REST APIs, SQL, and Docker. B2B contract, remote/hybrid options in Wrocław.

Słowa kluczowe

Java Kotlin Spring Boot Microservices Kafka REST APIs SQL PostgreSQL Docker CI/CD

Skrót przygotowany przez AI na podstawie treści ogłoszenia.

Senior Backend Engineer – Java / Kotlin

Banking & Investment Technology | High-Volume Financial Systems
The Mission
West Code is hiring experienced backend engineers for technology projects with banks, investment firms and other financial institutions. We are looking for people who have already worked in complex, regulated or high-volume financial environments and understand that reliability, data consistency and production ownership matter as much as clean code.

Depending on the project, you may work on investment-banking platforms, transaction-processing systems, risk and position services, market-data platforms, core banking components or other business-critical backend services.

What You’ll Buildbackend services using Java and/or Kotlin

Spring Boot-based microservices and AP
Isevent-driven and distributed systemshigh-volume transactional and data-processing servicesintegration layers connecting internal and external financial systemsservices where consistency, resilience and auditability are criticalproduction-ready systems designed for scale, high availability and observabilitytechnical solutions developed together with senior engineers, architects and business stakeholders
Must Have5+ years of backend engineering experiencestrong Java and/or Kotlin
Spring Boot and microservice architectures
Kafka or another event-streaming / messaging platform
REST APIs and system integrationsSQL / PostgreSQL or another relational database
Docker and CI/CDexperience with production systems and incident / failure handlinggood Englishability to work independently and take technical ownership
Strong Advantagecommercial experience in banking, investment banking, capital markets or another regulated financial environmenthigh-throughput or latency-sensitive systemstrading, market data, positions, risk, pricing or post-trade systemscore banking, ledger or transaction-processing platformsdistributed consistency, idempotency and failure-recovery patterns
Kubernetes and AWS / Azure / GCP
Open
Telemetry, Prometheus, Grafana or similar observability toolingexperience working with security, audit or regulatory requirements
Engineering Environment
Java / Kotlin
Spring Boot
Kafka
PostgreSQL
Docker
Kubernetes
Cloud
REST APIs
Open
Telemetry
CI/CD
Working ModelB2B cooperationremote or hybrid work depending on the projectprojects for banks, investment firms and financial-services organisationsinternational engineering environments
English used on most projectsB2B Rate170–220 PLN/h + VAT
Final rate depends on seniority, domain experience and project scope.

Why West Code

West Code builds engineering teams around ownership and strong technical delivery, not just individual roles. We are developing a dedicated business unit focused on technology projects for banks, investment firms and other financial-services organisations.

You’ll work on systems where scale, reliability and business context genuinely matter, with direct access to experienced technical leadership and practical AI-assisted engineering workflows supporting quality, requirements context and knowledge transfer.

If you have already built serious financial systems and want to work on projects where backend engineering has real business impact, apply and let’s talk.