Senior Network Engineer

🏢 Summary: Senior DevOps Engineer role supporting large-scale, low-latency trading systems for a North American bank. The position involves building, automating, and maintaining infrastructure across hundreds of servers and modernizing DevOps tooling in a fully remote, long-term engagement. The engineer will work on high-performance production systems used in real-time financial markets. 🗂️ Requirements: 6+ years of DevOps experience, Experience with multiple Linux distributions, Experience with at least one cloud environment, Experience managing 400+ servers using infrastructure automation tools, Proficiency in Python, Proficiency in Bash, Experience deploying and managing AWS-based systems, Experience supporting low-latency trading or capital markets systems, Experience with bare metal container orchestration, Strong knowledge of Linux system lifecycle, Ability to build and maintain observability systems, Advanced troubleshooting in live Linux environments, Ability to work US Eastern business hours, Eligibility to work and reside in Poland 📃 Skills: Linux, AWS, Python, Bash, Puppet, Ansible, Terraform, CloudFormation, Kubernetes, Docker, Icinga, Nagios, Observability, Automation 🏢 Description: Are you an experienced DevOps engineer who enjoys building and managing infrastructure in the cloud? Do you love working with smart people in interesting and useful domains? Want to work on large systems that power real-time trading across global markets? If so, read on. The Role at a Glance Senior Cloud Infrastructure Engineer Fully remote for a top North American bank (based in Poland only) 220-250 zł/hr B2B net + VAT Partial overlap with US Eastern business hours We’re hiring experienced DevOps engineers (6+ years) to join the IT infrastructure team at a top North American bank — directly supporting the development of financial trading systems . You’ll be part of the core IT infrastructure team , building and maintaining infrastructure in AWS for trading systems used across the firm. Why Join Us? Collaborate with a world-class team of DevOps engineers and developers across North America and Europe. Enjoy a long-term, fully remote role . Competitive compensation and long term stability that only a bank can offer. A successful candidate will be a passionate DevOps engineer who prioritizes automation, can code their own tools, and understands the value of observability. They will have experience maintaining configuration at scale of over 100 servers.  They must also be curious, open-minded, and desire to learn new things. English proficiency is a must. This is a fully remote DevOps role for an engineer in Poland . You will be working exclusively and directly with the bank through a Polish company, that will provide the support and administrative assistance to make you successful in the role. We are looking for people to join the team long-term. This role requires a 6-hour overlap with US Eastern business hours during the onboarding period and a 3-4 hour flexible overlap afterwards. Only open to residents of Poland. Polish citizens, as well as legal residents with permission to work in Poland are welcome. Successful candidates will need to pass a standard background check. What we offer Work that matters in the financial domain: Work on a trading system at an established financial institution, processing millions of transactions daily. Professional growth: Collaborate with smart, highly capable developers in a supportive and challenging environment. Direct collaboration : You will work directly with the bank’s team in North America and in Poland. 1st-tier work : This is not a technical support or legacy maintenance role. The system is functional and is actively being built and you will take part in updating it. The people who built the system are still part of the team. Long-term commitment: This is not a fixed-scope or fixed-term outsourcing role; we value people who want to grow and contribute long-term. Fully remote work: Fully remote position based in Poland. Competitive Compensation: Above-average pay and ample time-off options. Responsibilities Own one or more technology domains end-to-end such as the AWS multi-account landing zone (Control Tower, SCPs, Organizations, IAM Identity Center), EKS greenfield buildout (service mesh, GitOps/ArgoCD, Karpenter), CI/CD pipeline architecture, or AI/ML infrastructure (Bedrock, GPU workloads, MLOps). Lead platform buildouts from design through production. Architect, implement, and operate the systems your domain covers, making and documenting architecture decisions within your scope. Author and enforce IaC standards. Write production-grade Terraform/Terragrunt modules and establish patterns the entire team adopts. Design and implement CI/CD pipelines for infrastructure and application workloads using Jenkins on ECS and GitOps workflows. Understand and troubleshoot hybrid connectivity across co-location facilities, AWS Transit Gateway, Direct Connect, and cross-region networking; partner with the Networks team to resolve issues and implement changes. Mentor two Mid-level Engineers (L3). Review code and designs, pair on complex problems, drive their technical growth. Collaborate with the Governance and Security SME on security posture, vulnerability remediation prioritization, and regulatory compliance. Participate in on-call as a senior escalation point for production infrastructure incidents. Leverage AI-assisted developer tooling to accelerate delivery and reduce operational toil across the team. Requirements Must have 6+ years building and operating production infrastructure on AWS. Deep expertise in at least one of: AWS multi-account architecture (Control Tower, SCPs, Organizations, TGW) or Kubernetes at scale (EKS, service mesh, GitOps/ArgoCD, Karpenter). Terraform and Terragrunt proficiency. You create the modules, not just consume them. CI/CD pipeline design and maintenance (Jenkins, GitHub Actions, or equivalent). Linux systems administration (Amazon Linux, RHEL, or equivalent). Python and Bash scripting for automation. Experience mentoring engineers through code reviews, design reviews, and pairing. Ability to take ambiguous problems, ask the right questions, and deliver without hand-holding. Ability to follow and understand technical conversations. Ability to work during US Eastern business hours: 6-hour overlap during the onboarding period and a 3-4 hour flexible overlap afterwards. Nice to have Financial services, trading technology, or regulated industry experience. Experience with Microsoft Entra ID (Azure AD) and enterprise application management, SAML/SSO configuration, and AWS IAM Identity Center integration. Hybrid cloud connectivity troubleshooting (Direct Connect, Transit Gateway, co-location to AWS). Privileged access management (CyberArk or equivalent). Cloud security tooling (Wiz, Qualys, CrowdStrike). AI/ML infrastructure such as Bedrock, SageMaker, GPU instance management, and MLOps pipelines. AWS certifications (Solutions Architect Professional, Advanced Networking, Security Specialty). Interview process Submit your CV. Answer a few written questions and a short programming exercise which you can do at your own pace. Participate in an online three-stage interview process Successful candidates will need to pass a standard background check.

🏢 Summary: Senior Network Engineer role focused on planning, implementing, and reviewing network updates in an international financial environment. The position involves managing change requests, supporting network services, and participating in Change Advisory Boards. The role requires strong expertise in enterprise network technologies and automation tools. 🗂️ Requirements: Very strong networking knowledge, Strong expertise in Cisco, Strong expertise in F5, Strong expertise in ADVA, Knowledge of GitLab, Knowledge of Ansible, Experience with technical planning and executing network updates, Experience with change management processes, Experience in banking or regulated environment, Willingness to work outside regular hours 📃 Skills: Networking, Cisco, F5, ADVA, GitLab, Ansible 🏢 Description: Be | Shaping the Future Poland has a proven position of being a reliable partner for financial services organisations to analyse complex requirements, find solutions and implement them in their entirety, regardless of their complexity. Since the foundation of Be Poland in 2013, we have been continually expanding and customising our spectrum of services. Today, we are privileged to have in our team the best individuals in each sector we operate within the financial services industry. For our partner, an international organization, we are looking for a Senior Network Engineer to join our team. Responsibilities: Technical planning of updates Preparation of required activities and creation of change requests Execution and post-implementation review of updates Support for various service requests within the network environment Presentation of activities in various Change Advisory Boards (if required) Requirements: Very strong networking knowledge Strong expertise in Cisco, F5, and ADVA Knowledge of GitLab and Ansible Experience working with internal and external customers Strong communication skills Experience in a banking or regulated environment is an advantage Willingness to work outside regular hours (evenings and weekends) on a regular basis Our offer: Competitive remuneration on B2B contract Option to activate Medicover and Multisport on preferential terms Access to Mindgram – mental health & well-being platform Free gym at Q22 Personal development – internal online / onsite DevTalks Referral bonus program International environment

🏢 Summary: The offer is for a Network Automation / DevOps Engineer responsible for transforming a global, high-availability financial network into a highly automated, observable, and self-service platform. The role focuses on building advanced telemetry, monitoring, and infrastructure automation solutions in a low-latency capital markets environment. It combines deep networking expertise with Infrastructure as Code and cloud integration. 🗂️ Requirements: Experience with modern monitoring and telemetry stacks, Hands-on experience with network automation tools, Proficiency in Python programming, Experience with Infrastructure as Code, Knowledge of NETCONF or RESTCONF, Strong understanding of BGP, OSPF, PIM, IGMP, Experience with AWS networking, Ability to perform deep packet analysis, Experience managing multi-vendor network environments, Willingness to participate in 24/7 on-call rotation 📃 Skills: Python, Git, Ansible, Jinja, Terraform, Netbox, Temporal, Prometheus, Grafana, Telegraf, gNMI, YANG, NETCONF, RESTCONF, BGP, OSPF, PIM, IGMP, AWS, Cisco 🏢 Description: Location: Warsaw, Poland (City Centre, near Rondo ONZ) — Hybrid model (3 days a week in the office, 2 days remote) Contract Type: Permanent (Umowa o Pracę) About the Role & Project: We are recruiting for our client – a rapidly growing, global financial institution operating in the capital markets. We are looking for an engineer eager to bridge the gap between traditional network engineering and modern DevOps practices. This is not a role for a traditional network administrator. We are seeking a specialist whose default approach to repetitive tasks is automation, and who is passionate about building advanced telemetry and monitoring systems. Your mission will be to transform a global, high-availability infrastructure into a self-service, highly observable platform. If you thrive in environments where system stability and milliseconds directly impact business outcomes, and where manual intervention is treated as a problem to be solved with code, this is the team for you. Key Responsibilities: Design, implement, and maintain advanced telemetry, monitoring, and predictive alerting systems for a global, high-availability network. Develop, scale, and maintain automation tools to streamline network workflows (from automated provisioning to zero-touch deployments). Collaborate closely with engineering and investment teams to align network performance with dynamic business and trading requirements. Define, implement, and maintain configuration standards across a robust multi-vendor environment. Serve as the senior escalation point for troubleshooting and resolving complex performance and routing anomalies. Participate in a 24/7 on-call rotation and scheduled out-of-hours maintenance windows. Technical Profile (Technical Fit): Observability-First Mindset: Practical experience with modern monitoring stacks, telemetry protocols, and metrics collection (Prometheus, Grafana, Telegraf, gNMI, YANG, Cisco Telemetry). Automation as a Standard: Strong hands-on experience with automation tools and frameworks such as Ansible, Jinja, Terraform, Netbox, and workflow engines (e.g., Temporal). Infrastructure as Code (IaC) & Dev Skills: Proficiency in Python and Git, with experience managing network configurations programmatically (NETCONF/RESTCONF). Core Networking Foundations: Solid understanding of routing protocols and multicast environments (BGP, OSPF, PIM, IGMP). Public Cloud Integration: Practical knowledge of building and managing cloud network infrastructure (AWS). Advanced Troubleshooting: Ability to perform deep-packet analysis and diagnose complex, transient network issues under pressure. Personal Attributes (Cultural Fit): A continuous learning mindset with a drive to proactively identify and optimize inefficient processes. Ability to work independently, taking ownership of projects and delivering them on schedule with minimal supervision. Excellent communication and collaboration skills, comfortable working in a fast-paced, international team. Strong analytical thinking and decision-making skills under pressure. Bonus Points: Experience integrating enterprise-grade VoIP and cloud collaboration systems. Familiarity with network security, identity management, and segmentation solutions (e.g., Cisco ISE). A basic understanding of financial markets, trading lifecycles, or quantitative trading environments. What We Offer: Stable Employment: Full-time employment contract (Umowa o Pracę - UoP). Tax Optimization: Eligibility for creative tax-deductible costs (KUP - Koszty Uzyskania Przychodu). Financial Reward: Highly competitive base salary accompanied by a generous annual performance bonus. Comprehensive Health: Premium private medical care package that fully includes dental coverage (stomatologia). Wellness & Lifestyle: MultiSport card to keep you active and healthy. Daily Perks: Pre-funded lunch card for your daily meals.

🏢 Summary: Short-term, fully remote contract for a Senior AWS Network Engineer to design and deploy enterprise-grade global network infrastructure in AWS. The role focuses on building Cloud WAN, centralized egress architectures with AWS Network Firewall, and automating infrastructure using Terraform across multi-region environments. 🗂️ Requirements: 5+ years of network engineering experience in enterprise cloud environments, Deep hands-on expertise with AWS Cloud WAN and multi-region routing, Strong proficiency in Terraform for infrastructure as code, Extensive experience with AWS Network Firewall and centralized egress architectures, Experience with global backbone network deployments across multiple regions, Ability to troubleshoot complex multi-region network issues, Experience applying Agile and DevOps practices to network infrastructure, Fluent English (B2 level or higher), Ability to pass security check 📃 Skills: AWS, CloudWAN, Terraform, NetworkFirewall, Routing, IaC, DevOps, Agile, Networking, Automation 🏢 Description: Senior AWS Network Engineer We are looking for a highly motivated Senior AWS Network Engineer to join our client's project. The client is a UK-based company and a global leader in cloud-based CRM software solutions. This is a short-term, fully remote role within an Extended Teams model Position: Senior AWS Network / Cloud Engineer. Salary Rate: Up to 200 PLN/h. Work Type: 100% Remote. Project Duration: June 1, 2026 – August 31, 2026 (3 months). Key Responsibilities In this role, you will be working hands-on to deploy enterprise-grade network solutions: Delivering global network backbone infrastructure across IAD, PDX, and DUB regions. Building centralized egress architectures using AWS Network Firewall for secure and cost-effective traffic management. Building and maintaining AWS Cloud WAN infrastructure for global routing. Developing and maintaining infrastructure as code (IaC) using Terraform. Collaborating with security architects and cloud engineers to translate requirements into technical specs. Driving network automation to enable faster development and delivery. Mentoring other network engineers and providing technical guidance. Troubleshooting complex network issues across multi-region environments. Required Skills and Experience Experience: 5+ years in network engineering, focusing on enterprise cloud network solutions. AWS Cloud WAN: Deep, hands-on expertise in configuration, routing policies, and multi-region connectivity. Terraform: Strong proficiency in managing complex network deployments. AWS Network Firewall: Extensive experience designing centralized egress architectures and managing policies. Methodologies: Experience with Agile and DevOps practices applied to network infrastructure. Language: Fluent English (B2, C1, or C2 level). Recruitment Process Interview: The process includes an interview with the end client. Security Check: Candidates must pass a security check to start the project.

🏢 Summary: Senior AWS Network Engineer role focused on designing and delivering enterprise-grade cloud network infrastructure in a fully remote B2B model. The position involves building secure, scalable, and automated AWS networking solutions across global environments. The engineer will drive cloud connectivity, automation, and infrastructure reliability using AWS and Terraform. 🗂️ Requirements: 5+ years of experience in network engineering in enterprise cloud environments, Hands-on experience with AWS Cloud WAN configuration and multi-region connectivity, Proficiency in Terraform for infrastructure as code, Experience designing centralized egress architectures with AWS Network Firewall, Experience delivering large-scale network infrastructure projects, Knowledge of network automation and DevOps practices, Ability to troubleshoot multi-region network issues, Fluent English communication skills 📃 Skills: AWS, CloudWAN, Terraform, NetworkFirewall, Networking, DevOps, Agile, Automation 🏢 Description: Rate: up to 200 pln/h on b2b Location: 100% remotely Summary: The role of Senior AWS Network Engineer focuses on designing and delivering enterprise-grade network solutions that support a global infrastructure. This role aims to enhance cloud networking capabilities, ensuring secure, efficient, and scalable connectivity. Main Responsibilities: Key duties include: Deliver the entire global network backbone infrastructure as defined in the project plan. Build centralized egress architectures using AWS Network Firewall for secure traffic management. Build and maintain AWS Cloud WAN infrastructure for seamless connectivity. Develop and maintain infrastructure as code using Terraform for consistent deployments. Collaborate with security architects and cloud engineers to translate requirements into architectures. Implement network automation and self-service capabilities for network services. Mentor network engineers through technical guidance. Ensure reliability, performance, and security of infrastructure through testing and monitoring. Troubleshoot and resolve multi-region network issues. Stay updated with AWS networking services and trends. Key Requirements: 5+ years of experience in network engineering focused on enterprise cloud networking solutions. Hands-on expertise with AWS Cloud WAN including configuration and multi-region connectivity. Proficiency in Terraform for infrastructure as code. Experience in designing centralized egress architectures with AWS Network Firewall. Track record of delivering large-scale network infrastructure projects. Problem-solving skills with creative thinking. Effective communication and teamwork skills. Experience with agile methodologies and DevOps practices. Data-driven approach to network optimization. Fluent English communication skills. Nice to Have: Additional certifications in AWS or networking technologies. Experience in a leadership role. Familiarity with network monitoring and control tools. Previous work in fast-paced environments.

🏢 Summary: Senior Network Engineer role focused on designing and managing cloud and hybrid network architectures to ensure secure, scalable, and reliable connectivity between cloud environments and on-premises systems. The position involves hands-on work with advanced networking technologies, Infrastructure as Code, automation, and monitoring tools in a global enterprise environment. The role combines architecture design, implementation support, and cross-team collaboration within a cloud-centric infrastructure setup. 🗂️ Requirements: Minimum 6 years of experience in computer networking (traditional and cloud), Experience with AWS, Strong knowledge of routing, switching, VPN, hybrid connectivity, firewalls, load balancers, SD-WAN, Experience in network architecture design, Proficiency in Python, Experience with Infrastructure as Code, Experience with monitoring and troubleshooting tools, Experience with Linux, Knowledge of CI/CD processes, Experience with GitHub and GitHub Actions, Higher education in Computer Science, IT or related field or equivalent experience, English proficiency minimum B2 📃 Skills: AWS, Azure, GCP, Routing, Switching, VPN, Firewall, SD-WAN, Python, Terraform, CloudFormation, Grafana, Wireshark, Linux, CI/CD, GitHub, GitHubActions, Kubernetes, EKS, AKS 🏢 Description: We are looking for a Senior Network Engineer to join the Digital Hub in Warsaw at an international company operating in the fields of healthcare, agriculture, and life sciences. This is an infrastructure-networking-and architecture-focused role, centered on ensuring seamless connectivity between cloud environments and globally used business applications. Your responsibilities will include designing cloud network architectures, as well as working with routing, switching, firewalls, load balancers, and other cloud networking technologies. Key responsibilities Planning and managing networks connecting cloud environments (intra-cloud) and on-premises systems. Providing guidance and support in the implementation of networking solutions. Work closely with Squad Leads and other stakeholders to understand requirements and align integration strategies with business goals. Ensure solutions are scalable, reliable, maintainable, and secure, adhering to best practices in IT architecture and Bayer’s strategy. Create, maintain, and review comprehensive documentation for processes, standards, and best practices. Foster an environment of open communication and collaboration among diverse teams across different geographical locations. Ideal candidate profile Minimum 6 years of experience in computer networking (both traditional and cloud environments) and experience with AWS (knowledge of Azure or GCP is a plus). Strong experience in computer networks (routing, VPN, hybrid connectivity, switching, firewall, load balancer, SD-WAN, network architecture). Very good knowledge of Python . Knowledge of Infrastructure as Code ( Terraform, CloudFormation ). Experience with monitoring and troubleshooting tools, e.g. Grafana, Wireshark . Experience with Linux . Knowledge of CI/CD processes , GitHub , and GitHub Actions . Higher technical education (Computer Science, IT, or related field) or equivalent professional experience. Very good command of English (min. B2) Nice to have: Experience in system integrations and connectivity patterns. Experience working in enterprise or regulated environments. Knowledge of network security concepts. Experience with Kubernetes or container networking (especially EKS and AKS). Certifications such as CCNP or AWS Advanced Networking. Conditions Form of cooperation: UoP Salary range: 20240 - 25300 PLN gross/month + Annual bonus Hybrid work model: 1 day per week in the Warsaw office Benefits: company bonus and reward structure, private medical care, life and travel insurance, pension plan, sport card, additional days off, holiday allowance, home office equipment budget. Recruitment steps Call with a KUBO recruiter (Oliwia) (20-30 min.) Interview with the client (2 rounds) Decision and feedback

🏢 Summary: The offer is for a Senior Network Engineer responsible for testing and validating industrial communication and Ethernet-based networking solutions in IT/OT environments. The role focuses on building test environments, configuring and troubleshooting industrial networks, and analyzing complex networking issues using diagnostic tools. It combines hands-on networking, system testing, and collaboration with international engineering teams. 🗂️ Requirements: Minimum 5 years of experience in computer networking, industrial networking, or system testing, Strong knowledge of Ethernet technologies and networking protocols, Experience in configuring and troubleshooting network devices, Knowledge of VLANs, routing, STP/RSTP, DLR, and redundancy protocols, Experience with network diagnostic and traffic analysis tools, Experience in designing and executing test cases, English proficiency (very good level) 📃 Skills: Ethernet, VLAN, Routing, STP, RSTP, DLR, Wireshark, TCP/IP, IT, OT, Automation 🏢 Description: Join a global technology company specializing in industrial automation and industrial communication solutions. The team is responsible for developing and testing advanced networking devices used in industrial environments worldwide. As a Senior Network Engineer, you will be responsible for testing and validating industrial communication solutions, building test environments, and troubleshooting complex networking issues in IT/OT environments. The role combines networking expertise, system testing, and hands-on work with modern communication technologies. On a daily basis, you will collaborate with international engineering teams and support the analysis and resolution of complex technical challenges. Key responsibilities • Design and execute tests for industrial communication devices and Ethernet-based solutions • Build and maintain test environments and network topologies • Configure and troubleshoot industrial networks, including VLANs, routing, STP/RSTP, and DLR • Analyze test results, report defects, and collaborate with development teams • Use diagnostic tools such as Wireshark and packet analyzers • Develop test cases and support test automation initiatives Ideal candidate profile • Minimum 5 years of experience in computer networking, industrial networking, or system testing • Strong understanding of Ethernet technologies and networking protocols • Experience with configuring and troubleshooting network devices • Knowledge of technologies such as VLANs, routing, STP/RSTP, DLR, or redundancy protocols • Experience with diagnostic tools and network traffic analysis • Very good command of English Conditions Rate: 120 - 140 PLN/h, B2B contract Benefits: Private healthcare, Multisport card and life insurance Work model: Hybrid - 3 days from the office, 2 days from home Recruitment steps Phone call or online meeting with a KUBO Recruiter - Aleksandra (approx. 20 min.) Interview with Client : on-site in the office in Katowice which will be devided into two parts: Technical interview Interview with the manager from the United States Possible additional stage: Short meeting with the PM from the USA (approximately 30 minutes) Decision and feedback

🏢 Summary: Senior Java Backend Engineer role focused on building and enhancing low-latency FX trading systems for a top North American bank, fully remote from Poland. The position involves developing high-performance backend services for algorithmic order management and order routing in real-time, high-throughput environments. This is a long-term opportunity to work on actively developed, large-scale trading platforms in close collaboration with traders and international teams. 🗂️ Requirements: Current professional Java programming experience, Strong understanding of algorithms, complexity and multi-threading, Deep knowledge of Java language and standard libraries, Strong knowledge of data structures and Java Collections Framework, Experience building backend services for front-office trading systems, Understanding of front-office workflows and electronic trading platforms, Experience with algorithmic order management or order routing systems, Expertise in multi-threading, event-driven systems and performance tuning, Knowledge of low-latency trading systems (microsecond level), English proficiency, Residence and legal right to work in Poland, Ability to overlap 6 hours with US Eastern Time 📃 Skills: Java, Algorithms, Multithreading, DataStructures, Collections, Concurrency, LowLatency, OrderRouting, OrderManagement, ElectronicTrading, EventDriven, PerformanceTuning, FX, Backend 🏢 Description: Join the Fixed Income Trading Systems Team at a top N. American Bank This isn’t just another dev role. It’s your chance to engineer the core of global trading. We’re talking ultra-low-latency architectures, real-time market data, and automation at scale — all in an environment where milliseconds matter and billions move. You’ll work on greenfield and semi-greenfield projects, building FX (forex) trading workflows. If you thrive on complexity, love solving performance challenges under pressure, and want to collaborate directly with traders and product teams at the sharp edge of financial technology — this is your arena. The Role at a Glance Senior Java Backend Engineer Building a FX trading systems, including high-performance backend services for algorithmic order management and order routing. 270zł - 300zł / hr B2B net + VAT Fully remote for a top N. American bank (for residents of Poland only) This role requires experience building trading systems, specifically with order routing or algorithmic order management. If you enjoy working on low-latency, high-throughput trading systems, join us and build the next generation of high-performance capital markets solutions. Why Join Us? Work on a large-scale, low-latency trading system . No Legacy: Join an actively developed system — the engineers who built it originally are still on the team. Collaborate with a world-class team of developers across North America and Europe. Enjoy the stability of a long-term, fully remote role that only a bank can offer. A successful candidate will be a very strong programmer with current Java development experience. They must also be curious, open-minded, and desire to learn new things. English proficiency is a must. This role is for developers who excel at programming core Java from the ground up, not just integrating frameworks or APIs. If you’re fascinated by understanding systems ‘under the hood,’ this role is for you. Successful candidates enjoy geeking out about data structures and debugging application performance issues. This is a fully remote backend Java development role for a developer in Poland . You will be working through a Polish company that will provide the support and administrative assistance to make you successful in the role. We are looking for people to join the team long-term. Only open to residents of Poland. Polish citizens, as well as legal residents with permission to work in Poland, are welcome. What we offer Work that matters in the financial domain: You’ll be building high performance trading system at an established financial institution. Professional growth: Collaborate with smart, highly capable developers in a supportive and challenging environment. Direct collaboration : You will work directly with the client team in North America and in Poland. 1st-tier work : This is not a technical support or legacy maintenance role. The system is functional and is actively being built and you will take part in updating it. The people who built the system are still part of the team. Long-term commitment: This is not a fixed-scope or fixed-term outsourcing role; we value people who want to grow and contribute long-term. Flexibility & remote work: Fully remote position based in Poland with increasing schedule flexibility post-onboarding. Competitive Compensation: Top pay and ample time-off options. Responsibilities Design and implement robust software solutions for FX trading systems using core Java. Build high-performance backend services that algorithmically manage and route orders. Create thorough test cases to ensure software stability and reliability. Collaborate with operations teams regarding building new features and improving existing functionality. Requirements Must have Current Java programming experience, with a strong understanding of programming concepts, including algorithms, complexity, and multi-threading, and Java’s language capabilities and standard libraries. Good knowledge of the data structures: familiarity with the Java collections framework, depth of understanding of the commonly used data structures, intuition on what to use when. Proven experience building backend services for front-office trading systems. Deep understanding of front-office workflows and electronic trading platforms (any asset class). Built or contributed to the algorithmic order management systems or order routing systems (any asset class). Expertise in multi-threading, event-driven systems, and performance tuning. Ability to break down complex workflows into maintainable, high-quality solutions. Strong communication skills and comfort working in high-stakes, trader-facing environments. Knowledge that is required for building low-latency (measured in microseconds) trading systems. Ability to align your work with a 6 hour overlap with US Eastern business hours. Nice to have Experience with trading protocols or FX trading systems. Exposure to time-series databases and market data integration. Familiarity with algorithmic workflows and pricing engines. A computer science degree from a top Polish school. The recruitment process Submit your CV. Answer a few written questions and a short programming exercise, which you can do at your own pace. Participate in an online three-stage interview process: Technical screen interview Three technical interviews with future team members Discuss your experience and skills. Solve verbal algorithm problems (focus on clarity and understanding). Tackle live coding challenges (no trick questions). Successful candidates will need to pass a standard background check.

🏢 Summary: Senior Java Backend Engineer role focused on building and enhancing low-latency, high-performance financial trading systems within a capital markets division. The position involves core Java development from the ground up, working on distributed, large-scale systems processing millions of transactions daily. Fully remote role for Poland-based engineers, collaborating directly with North American teams. 🗂️ Requirements: 6+ years of backend Java development experience, Strong knowledge of algorithms, complexity and data structures, Deep understanding of Java standard library data structures and internals, Experience building distributed service-based systems, Experience working with message queues, Ability to diagnose and optimize low-latency, high-throughput systems, Experience with production issue analysis and root-cause diagnosis, Fluent English proficiency, Availability to work in US Eastern business hours during onboarding, Legal right to work and reside in Poland 📃 Skills: Java, JVM, Spring, SpringBoot, AWS, Algorithms, DataStructures, DistributedSystems, MessageQueues, Microservices 🏢 Description: Join the Java Engineering Team at a top N. American Bank Are you a Java engineer who enjoys working on large scale and high performance software? Do you love working with smart people on meaningful technology? Want to work in capital markets on financial trading systems? If so, read on. The Role at a Glance Senior Java Backend Engineer Fully remote for a top N. American bank (for residents of Poland only) Openings on multiple teams in the capital markets division (prime brokerage, platform team) Part of the core team - this is not a legacy support role or an outsourced B team We’re hiring experienced backend engineers (6+ years) to join a major N. American bank — directly supporting the development of financial trading systems . This is not a legacy maintenance or support role — you’ll be part of the core product team , building highly-performant, low-latency systems used across the firm. Are you a passionate Java developer who thrives on solving complex problems in low-latency, high-throughput trading systems ? Join us and work on interesting financial system engineering problems. Why Join Us? Work on a large-scale, low-latency trading system processing millions of daily transactions. No Legacy: Join an actively developed system — the engineers who built it originally are still on the team. Collaborate with a world-class team of developers across North America and Europe. Enjoy the stability of a long-term, fully remote role that only a bank can offer. A successful candidate will be a very strong programmer with current Java development experience. They must also be curious, open-minded, and desire to learn new things. English proficiency is a must. This role is for developers who excel at programming core Java from the ground up, not just integrating frameworks or APIs. If you’re fascinated by understanding systems ‘under the hood,’ this role is for you. Successful candidates enjoy geeking out about data structures and debugging application performance issues. This is a fully remote backend Java development role for a developer in Poland . You will be working through a Polish company that will provide the support and administrative assistance to make you successful in the role. We are looking for people to join the team long-term. Different teams have different working hour arrangements. For all roles, to ensure efficient onboarding, you’ll work in sync with the American team during US Eastern business hours for the first two months . Working this way maximizes your time overlap for answering questions, which means you can learn quickly. That means working until 21:00 CET. After that, some teams offer more flexibility your schedule can shift closer to standard Polish business hours. Only open to residents of Poland. Polish citizens, as well as legal residents with permission to work in Poland are welcome. What we offer Work that matters in the financial domain: Work on a trading system at an established financial institution, processing millions of transactions daily. Professional growth: Collaborate with smart, highly capable developers in a supportive and challenging environment. Direct collaboration : You will work directly with the client team in North America and in Poland. 1st-tier work : This is not a technical support or legacy maintenance role. The system is functional and is actively being built and you will take part in updating it. The people who built the system are still part of the team. Long-term commitment: This is not a fixed-scope or fixed-term outsourcing role; we value people who want to grow and contribute long-term. Flexibility & remote work: Fully remote position based in Poland with increasing schedule flexibility post-onboarding. Competitive Compensation: Above-average pay and ample time-off options. Responsibilities Design and implement robust software solutions for the bank’s trading systems using core Java (versions vary from team to team, and include 8, 17 and 21). Understand, develop, and improve the subsystems used by other teams in the trading platform. Create thorough test cases to ensure software stability and reliability. Collaborate with operations teams regarding building new features and improving existing functionality. Support production issues, including root-cause analysis and diagnosis. Requirements Must have Strong understanding of programming concepts, including algorithms, complexity, and data structures. Good knowledge of the data structures in the Java standard library - both breadth and internals. Experience building distributed service-based applications based on message queues. Strong analytical and problem-solving skills, to effectively diagnose production performance issues measured in microseconds. Open mind, curiosity, and a strong desire to learn new technologies and business domains. Ability to clearly explain non-trivial systems and algorithms. Ability to follow and understand technical conversations. Know when and how to ask questions that speed up learning. Ability to align your working schedule to US Eastern business hours. Nice to have Experience with financial markets and trading systems. Knowledge of AWS systems. Experience with Spring boot (some teams). Experience with JVM tuning (some teams). Experience working remotely with North American firms. A computer science degree from a top Polish school. The recruitment process Submit your CV. Answer a few written questions and a short programming exercise which you can do at your own pace. Participate in a three-stage interview process: Discuss your experience and skills. Solve verbal algorithm problems (focus on clarity and understanding). Tackle live coding challenges (no trick questions). No take-home assignments – we respect your time. Successful candidates will need to pass a standard background check.

🏢 Summary: Hybrid Network Engineer (Cloud) role focused on designing, managing and automating connectivity between cloud platforms (AWS/GCP/Azure) and on-premises infrastructure in a global enterprise environment. The position combines hands-on engineering, network architecture decision-making and technical leadership, ensuring scalable, secure and reliable solutions. Responsibilities include infrastructure automation, complex troubleshooting and establishing network standards and best practices. 🗂️ Requirements: 6+ years of networking experience (traditional and cloud), 4+ years of hands-on AWS experience, Strong knowledge of routing, switching, firewalls and SD-WAN, Experience with Terraform and Infrastructure as Code, Strong Python skills, Strong Linux skills, Experience in regulated enterprise environments, English proficiency B2+ 📃 Skills: AWS, GCP, Azure, Terraform, Python, Linux, CI/CD, SD-WAN, Routing, Switching, Firewalls 🏢 Description: Network Engineer (Cloud) Hybrid (1 day office in Warsaw) You will: Design and manage networks connecting cloud environments (AWS/GCP/Azure) with on-premises infrastructure across a global enterprise Mentor a team of engineers, providing hands-on guidance and technical leadership Drive network architecture decisions – ensuring solutions are scalable, secure and reliable Automate infrastructure with Terraform, Python and CI/CD pipelines Troubleshoot complex network issues and own them end-to-end Create and maintain documentation, standards and best practices You bring: 6+ years in networking – classic and cloud 4+ years of hands-on AWS experience Deep knowledge of routing, switching, firewalls and SD-WAN Strong Terraform/IaC, Python and Linux skills Experience in regulated enterprise environments English B2+