58 remote Java roles open to candidates in Poland, 1 added this week, all at fully remote, VC-backed startups. Matcha reads every posting daily and emails you only the ones that fit.
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58 open roles · 2 new this week · 80% not on LinkedIn
Seamless cross-border crypto payments with fiat settlements and compliance.
Own Atlassian Cloud admin and workflow automation for internal business processes in blockchain infrastructure; 2+ years Jira Cloud/Confluence Cloud, JSM admin, n8n/Make/Zapier, Atlassian REST APIs, integrations, JavaScript/Groovy/Java; bonus: HRIS, OAuth2, AI, ITIL
Remote Europe only
ABM action platform for enterprise growth, recognized by Gartner.
Own backend/AI systems for a B2B revenue/marketing platform, including semantic CRM data and AI apps; fluent English, within ~2 hours of CET; 5+ years, TypeScript/Java/Python, SQL, relational DBs, APIs, distributed systems, Docker, CI/CD; bonus: LLM products, Salesforce/HubSpot
Remote Europe/Middle East/Africa within about 2 hours of CET; exact country must be confirmed
Agentic product system with built-in product AI Spark for teams.
Own AI-native full-stack architecture for product engineering and agent workflows; must have legal right to work in EU, no visa sponsorship; 6–10+ years, Python/Kotlin/Java, LLM products, distributed systems, AI coding tools; bonus: founding/founder, agentic systems; stock options, relocation to Prague
Remote from Poland; candidates must have legal right to work in the EU, no visa sponsorship
Agentic product system with built-in product AI Spark for teams.
Own AI-native backend architecture for product engineering, including agent workflows, context infrastructure, and self-healing incidents; must have EU work authorization, no visa sponsorship; 6–10+ years, Python/Kotlin/Java, LLM product experience, distributed systems; bonus: founding/founder, agentic systems; stock options.
Remote from Poland; candidates must already have legal right to work in the EU.
Popular home design and improvement platform for 77+ million users.
Own automated testing across web, mobile and desktop home-design apps; English required, Russian knowledge, contractor under B2B agreement; 3+ years test automation, 2+ years web/API, Java, Kotlin, Selenium, Appium, JUnit, TestNG, REST, GraphQL, gRPC.
Remote Europe only; specifically Serbia, Georgia, Spain, Poland, Portugal, Latvia, Estonia, Armenia.
Strategy, technology, and managed services delivering rapid growth in weeks.
Own QA strategy across multiple software products in finance/process automation; 6–10 years testing, 3+ years QA lead, Selenium/Cypress/Playwright/Appium, Java/Python/JavaScript, CI/CD, API/backend testing, performance testing, Jira/TestRail
Remote policy unclear
Mode: Fast-growing earn-as-you-go software enabling equitable financial opportunity.
Own and scale the data platform for mobile apps and AI/data products, processing billions of daily events for real-time and batch use cases; 5+ years; SQL, Spark, Kafka, AWS, Terraform, Python/Scala/Java, data modeling, ETL/ELT; global remote, equity
Remote anywhere; global remote-first company
AI marketing platform helping SMEs create and promote high-performing content.
Own vulnerability remediation and incident response for an AI ads platform’s product and AWS infrastructure; fluent Ukrainian, English B2+; 5+ years engineering, 2+ years security, backend in Node.js/JavaScript/TypeScript, Java, C#/.NET, Go, or Rust, AWS; bonus: security certs, SOC 2/ISO 27001/CASA, GDPR/CCPA
Remote anywhere
AI marketing platform helping SMEs create and promote high-performing content.
Own company-wide product and infrastructure security for an AI ads platform; fluent Ukrainian, B2+ English; 7+ years engineering, 3+ years security role, backend in Node/JS/TS, Java or C#/.NET, DevOps/cloud, incident response, AWS cert, SOC 2/ISO 27001; profitable, high-growth
Remote anywhere
Ethical web data extraction platform, powered by Zyte API and AI.
Own control and context planes for a web-data platform, leading Core & MLOps architecture across squads; worldwide remote, shared on-call; 10+ years, Java, Python, gRPC/Protobuf, Kubernetes, Terraform, Kafka, SLOs/distributed systems; bonus: Temporal/DBOS, MLOps, service mesh.
Remote anywhere worldwide
The subscription platform for mobile apps
Own end-to-end features for mobile monetization SDKs, mainly iOS or Android with some cross-platform/hybrid work; 8+ years, shipped mobile apps, Swift/SwiftUI or Java/Kotlin/Compose, testing; bonus: SDKs, server-driven UI, Python/backend; Series C, equity, remote-first
Remote across the Americas and EMEA
Global electronic trading technology powering algorithmic equities and derivatives connectivity.
Own presales-to-onboarding delivery for electronic trading clients in EMEA capital markets; based in Paris, remote friendly; 2+ years in client support/business analysis in electronic trading, business analysis, fluent English and French; bonus: another European language, expertise in pricing/low latency/market making
Based in Paris; remote friendly for EMEA role, likely France/Europe
Adaptive strategic portfolio management platform bridging strategy and execution.
Own maintenance and reliability of Jira Data Center BI connectors exporting to BI tools; English B2+; 3+ years, Java, Spring, SQL, React, TypeScript, Redux/state management, testing, GitHub Actions; bonus: Atlassian apps, BI/OData, performance, secure coding, cloud migration
Remote only from Poland, Ireland, Portugal, Romania, Slovakia, Spain, or Ukraine
Open-source database company enabling rapid, integrated enterprise deployments.
Own development and testing of a geo-distributed database; no visa sponsorship or relocation; 4+ years Java, Java concurrency/JMM, Java SE/JVM internals, SQL databases, troubleshooting, distributed systems concepts; bonus: NoSQL, Docker/Kubernetes, cloud, open source, performance testing.
Remote only from Georgia, Croatia, Estonia, Finland, Italy, Poland, Romania, Serbia, Spain, Armenia, or Cyprus.
Open-source database company enabling rapid, integrated enterprise deployments.
Own development, testing, performance, and reliability of a geo-distributed database cluster while leading engineers; no visa sponsorship or relocation; 4+ years Java, concurrency/JMM, Java SE/JVM internals, SQL databases, troubleshooting, distributed systems, MVCC/P2PL; bonus: NoSQL, Docker/Kubernetes, cloud, open source
Remote from Georgia, Croatia, Estonia, Finland, Italy, Poland, Romania, Serbia, Spain, Armenia, or Cyprus only
Nord Security Partner page: cybersecurity suite and insights for growth.
Build and optimize data pipelines, ETL, and data lake systems for cybersecurity features in a VPN product; must have prior data engineering experience, Python/Scala/Go/Java, big-data/distributed systems, cloud data integration; tools: PySpark, SQL, Databricks, AWS, Kafka, Cassandra, PostgreSQL, Terraform
Remote Poland only
Leading card-issuing processor enabling scalable, global fintech growth.
backend role on real-time card authorization systems and fraud-prevention tooling; builds customer-facing controls like rules improvements, velocity controls, 3DS flows, fraud tooling, and transaction monitoring; owns projects end-to-end from planning to launch; participates in on-call and leads team process/system improvements; requires 4+ years building production backend systems; full-stack a plus; experience in or willingness to learn Rust and work across Python/Java systems; payments/fintech/fraud interest or experience preferred; remote async team; no visa sponsorship
Remote in the United States, Canada (Ontario or British Columbia), Netherlands, Poland, or Czech Republic only.
Empowering developers to build on Bitcoin, growing Rootstock and decentralized tech.
Secures Bitcoin-backed DeFi infrastructure; reviews source code, smart contracts, and protocol changes; threat modeling and architecture reviews with development teams; owns bug bounty triage/validation and coordinates external audits through remediation; builds security automation including AI-assisted code review, scanning, findings triage, CI security checks, monitoring alerts, and hardening; researches EVM, bridge, and p2p attack techniques and supports application-layer incident investigations; requires 3+ years in application/security engineering, secure code review in Java plus one of TypeScript/JavaScript, Python, Go, or Rust, blockchain security experience in Solidity/EVM or protocol/node security, security automation experience, and fluent English; bonus: bug bounty/disclosure programs, network or consensus attack mitigation, offensive security background, public security research, C/C++, fuzzing
Remote within UTC-3 to UTC+2 time zones; effectively Europe through Argentina-aligned LATAM time zones
Sleep fitness company delivering personalized Pod for better sleep worldwide.
Backend/SRE-focused role building and scaling distributed backend systems that handle critical business logic and data flows between embedded, machine learning, mobile, and business intelligence systems; maintain a 5TB/day data pipeline; improve availability and automation for ~30 microservices; contribute to backend services and product features; requires 8+ years software engineering and 5+ years backend engineer/SRE experience; must have advanced experience with at least 2 of Java/Scala/Kotlin, C#/.NET/F#, Python, NodeJS+TypeScript, plus distributed systems and deep cloud services expertise; high-intensity environment explicitly stating 60+ hour weeks; equity included for full-time employees
On-site in Milan or remote in Europe
Leading card-issuing processor enabling scalable, global fintech growth.
Own foundational API platform systems for a card issuing/processing infrastructure product; build and improve API Gateway, events platform, API key management/authz, audit logging, API norms/versioning, reliability and search; write reliable, secure, scalable backend code; participate in on-call; own projects end-to-end from planning to launch; lead team system/process improvements; requires 4+ years building production backend systems, ideally public-facing APIs at scale; experience with or willingness to learn Rust and work across Python/Java code; needs API design/product-thinking depth including versioning, backward compatibility, schema-driven development, and customer tradeoff decisions; interest/experience using AI tools for productivity; no visa sponsorship or assistance
Remote only from United States, Canada, Netherlands, Poland, or Czech Republic; no visa sponsorship
Pipekit enables distributed jobs on Kubernetes for data engineers.
Own both open-source and enterprise product work around Kubernetes-native workflow orchestration; maintain and evolve Argo Workflows and Argo Events, including PRs and architectural decisions; build enterprise control-plane features with strong developer experience; help shape roadmap from user pain points; engage directly with customers and OSS contributors; participate in mostly working-hours on-call; conference speaking expected; must: strong statically typed programming in Go/Java/Rust/C++, Kubernetes; bonus: Go microservices, TypeScript/React, Python, AWS/Azure/GCP, OSS maintenance/community experience
Remote across US East Coast to Eastern European time zones
Acquiring and bundling software to offer affordable marketplace and retail operations.
Own features across Inventory Lab’s C# and Java systems from design to production; build and maintain backend services, APIs, and scalable application components; debug production issues, find root causes, and implement durable fixes; contribute to architecture decisions within domain and code reviews; collaborate with Product, QA, and DevOps; supports a product for ecommerce sellers covering inventory, listings, accounting, and operational workflows; requires 5–8+ years of software engineering experience; must: strong C# and Java, backend services/APIs, REST, system design, SQL/data modelling, debugging production systems, Git/team development; bonus: AWS; contractor/self-employed engagement
Remote Europe only
Credit score platform for banks, empowering users and improving finances.
The role requires 8+ years of experience in software or ML engineering with at least 5 years shipping production ML systems. You must have deep expertise in the AWS ML stack, Python, and MLOps fundamentals, along with strong technical leadership skills.
Remote Europe/EMEA; posting explicitly mentions working from Warsaw, Poland and title says EU, EMEA Remote.
Patrianna builds fast-growing, global social gaming experiences.
Requires extensive production experience with Java, deep understanding of JVM internals, and strong system design capabilities. Candidates must possess advanced knowledge of PostgreSQL, messaging systems like Kafka, and leadership experience.
Remote in Poland, Bulgaria, or Romania only.
Secure institutional digital asset storage via world's largest platform provider.
Requires a bachelor's degree in a relevant field and at least 5 years of experience in QA or software testing with a focus on backend and API testing. Candidates must have strong knowledge of distributed systems, test automation, and experience with modern infrastructure tools like Docker, Kubernetes, and CI/CD pipelines.
Remote in Hong Kong, Kuala Lumpur, Singapore, Taipei; also global options. No other regional restrictions stated.
Orkes: managed, scalable, durable workflow orchestration for developers.
Candidates must have 5+ years of experience in software engineering, cloud architecture, and customer-facing roles. Proficiency in Java and a strong understanding of distributed systems, microservices, and cloud-native architecture are required.
Remote in Europe (GMT+1 or within 1–2 hours). Some client travel (15–20%).
AI-driven mobile security leader protecting apps and devices.
Candidates must hold a bachelor's degree in computer science or a related field with 1-5+ years of experience in enterprise software support. Strong technical proficiency in SQL, scripting languages, and mobile device management solutions is required.
Remote in India. Customer-support engineering for enterprise mobile security; no other region restrictions stated.
API-first B2B payments platform with embedded, white-label Visa cards.
Requires 7+ years of software development experience with Java/Kotlin and Spring Boot, including at least 2 years in a leadership role. Candidates must have a strong background in distributed systems, authentication/authorization, and microservices architecture.
Remote in Germany (m/f/d). Role is for candidates located in Germany; otherwise remote eligibility not specified.
Delivering Technology for Waste & Recycling Hauler Operators
Requires 5+ years of experience in building production backend systems with strong proficiency in Spring Boot and relational databases. Candidates must demonstrate clear English communication skills and the ability to work remotely with consistent overlap with U.S. working hours.
Remote Eastern Europe; contractor role. Must overlap U.S. working hours consistently.
Intelligent requirements management AI saving millions in manufacturing quoting.
Candidates must have 2+ years of experience shipping production code across backend and frontend. You must be based in Germany with the right to work and have experience with statically typed languages and modern web technologies.
Fully remote from Germany only; must be based in Germany with right to work there.
AI-powered defense platform delivering targeting, planning, and deterrence at edge.
Requires 7+ years of software engineering experience with strong backend expertise in languages like Python or Java and proficiency in full-stack development using React and Node.js. Must have deep knowledge of identity and authentication protocols such as OAuth 2.0, OIDC, and SAML.
Remote-friendly; no stated regional restrictions. Travel may be required for clearance-related user visits.
Adaptive strategic portfolio management platform bridging strategy and execution.
Requires 4+ years of commercial frontend experience, including at least one year with TypeScript and React. A degree in Computer Science or a related field is expected, along with strong knowledge of CS fundamentals and usability.
Remote Canada, Portugal, Spain, and United Kingdom. Senior Frontend Developer; submit resume in English.
Independent retailer tech provider offering POS, payments, and growth tools.
Requires over 3 years of experience with Java and proficiency in Appium, Git, and Jenkins pipelines. Candidates should have strong skills in mobile test parallelization and API automation.
Remote Europe (Georgia, Moldova); on-site option in Belarus-Moldova.
Cloud-based build and test acceleration with scalable remote execution.
Requires 3+ years of experience in software development or SRE roles with proficiency in at least one major programming language. Candidates should have strong knowledge of build systems, cloud providers, and containerization tools like Docker and Kubernetes.
Remote EU only; fully remote with occasional global team meetups.
Cloud pricing and forecasting for hoteliers worldwide to maximize revenue.
Requires 7+ years of experience building scalable backend systems with deep expertise in Java, Spring, and event-driven architectures. Must have a proven track record of driving architectural decisions and production experience with AWS.
Remote Europe (EU) including Croatia and Spain.
Accelerates distributed app development via Dapr APIs, tooling, and support.
Requires 3+ years of experience in a technical customer-facing role with proficiency in at least one of Java, .NET, or Go. Candidates must have a solid understanding of distributed systems and experience with container-based systems like Kubernetes and Docker.
Remote UK and Europe (Portugal, Spain)
AI-powered tools empowering microbusinesses to start, grow, thrive.
Requires 8+ years of full-stack experience with expert knowledge of React, TypeScript, and backend languages like Kotlin or Java. Must have a proven track record of leading large-scale architectural initiatives and experience with AI-assisted development tools.
Remote Europe
Studio builds and funds early ventures shaping culture and commerce.
Requires mastery of probability theory and statistical modeling combined with professional Java coding skills. Candidates must have a deep intuition for iGaming volatility and be available 7 days a week for a high-availability role.
Remote Canada, LATAM, Europe; fully remote.
AI agent platform for high-volume, precise customer experience at scale.
Requires strong proficiency in Java, Scala, or Python, along with expertise in SQL and system design for distributed systems. Candidates must be active users of AI development tools and possess working proficiency in both English and Polish.
Remote EU (Poland)
AuthZed provides scalable, secure, SpiceDB-backed permissions as a service.
Proven experience as an SRE with strong knowledge of networking, cloud infrastructure, and containerization tools like Kubernetes. Proficiency in multiple programming languages and experience with infrastructure-as-code tools is required.
Remote US, Canada, or Europe; fully remote with flexible schedule across timezones
Masabi powers seamless transit payments with innovative technology.
Requires deep experience in payment systems, PSP integrations, and distributed microservices architecture at a Principal or Staff level. Proficiency with AWS and modern infrastructure practices is essential, with a preference for experience in transit payments.
Remote UK only
Your Mindful AI Coding Agent
Requires 10+ years of experience in software engineering with expertise in at least one and proficiency in two of JavaScript, Python, Rust, or JVM languages. Must have a strong background in scaling distributed systems and cloud infrastructure within AWS or Google Cloud.
Remote Europe only
Masabi powers seamless transit payments with innovative technology.
Requires extensive experience in designing distributed systems and microservices at a Principal or Staff level. Must be proficient with cloud platforms (AWS), data architecture, and capable of translating ambiguous business problems into technical approaches.
Remote Europe
Candidates must possess an active IRS MBI clearance and extensive technical experience across integration (Software AG webMethods Suite), programming (Java, Spring, React), and modern protocols (REST, AMQP). Required expertise also includes containerization (Docker, Kubernetes), enterprise messaging platforms, and robust CI/CD pipeline maintenance.
Remote anywhere
Candidates must possess a minimum of 5 years of commercial experience developing complex software, with advanced proficiency in C# or Java and strong object-oriented design principles. A deep understanding of the full SDLC, agile methodologies, security best practices, and experience with cloud environments like GCP or AWS are essential.
Remote UK and global; remote-first with on-call rota.
Applicants should have 6+ years of backend engineering experience, particularly with Java and Spring frameworks. Familiarity with SQL databases and experience in Agile environments are also required.
Remote US only; must be authorized to work in the United States.
Ship Agents that Work. Arize AI & Agent Engineering Platform - one place for development, observability, and evaluation.
The role requires 5+ years of experience with high-performance backend systems and strong programming skills in Go, Python, TypeScript/Node, and Java. A keen interest in AI and LLM ecosystems, along with experience in building complex SaaS platforms, is also essential.
Remote-first; offices optional in NYC/SF; WFH stipend.
Blackline Safety is a global leader in connected safety solutions. Wherever there's a need for safety, we're there.
Candidates should be enrolled in a Computer Science or related program and have completed at least the third year. Knowledge of various programming languages and familiarity with web technologies and cloud platforms is preferred.
On-site at Calgary HQ; no remote option stated.
Blackline Safety is a global leader in connected safety solutions. Wherever there's a need for safety, we're there.
Candidates must be currently enrolled in a Computer Science, Software Engineering, or related program, having completed the third year or later. Required knowledge includes programming languages like Python, Node, Go, Java, Angular, and/or PHP, alongside strong critical thinking and teamwork abilities.
Enabling a high-quality and viable healthcare system
Candidates should have a BS or MS in Computer Science or equivalent experience, with 5-10 years of software development experience. Proficiency in multiple programming languages and databases, as well as understanding of CICD methodologies, is required.
Remote role; interviews virtual; company supports remote work.
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