Highlights:

Location: Remote (CET hours preferred)

Compensation: 539,000 - 679,500 Serbian dinars Gross + stock options

Language: Russian-speaking team

About Fundraise Up

We’re Fundraise Up - a global fundraising platform built to make donating to nonprofits fast, seamless, and accessible to all. Every month, our technology powers tens of millions of dollars in donations across the globe. We focus on innovation that directly impacts results: faster load times, higher conversion rates, global payment support, and accessibility-first design.

Our platform is trusted by many of the world’s leading nonprofits, including UNICEF, the Alzheimer’s Association, and a wide range of global NGOs. With a 4.9/5 rating across top software review platforms, we’re recognized not just for our impact - but for the quality of the product we deliver.

A Truly Global Product

We operate in the enterprise segment, serving nonprofit organizations across North America, the United Kingdom, Australia, and Europe.

We’re building a large and complex product ecosystem that serves nonprofits, donors, and partners around the world. The platform includes a modern checkout experience and customizable widgets (each a standalone SPA), donor, organization, and partner portals, admin tools, and several internal apps.

Our backend is powered by Node.js (Koa, NestJS) and MongoDB. The frontend stack includes Webpack, Vue.js, and React, with nearly all code written in TypeScript. For high-throughput messaging and background processing, we use Kafka (for millions of events) and Bull (Redis). Analytics data is stored in ClickHouse, and we use Elasticsearch for search.

The Team

We are a distributed team of 160+ product professionals, including 80+ engineers. Our team members are mainly based across Spain, Poland, Portugal, Georgia, Armenia, Serbia, Turkey, and Cyprus. Many of our developers bring 5 - 10+ years of experience, and we foster a culture of deep technical curiosity and knowledge sharing.

Despite our scale, we operate like a focused team - where every task matters and every voice is heard. We value thoughtful collaboration, strong engineering practices, and a product mindset. You’ll be joining a team where quality, mentorship, and mutual respect come first.

About the Role

You will join a small team responsible for the stability, performance, and security of our server infrastructure: bare metal, VMs, databases, queues, networking, and infrastructure security. Our philosophy is simple: the team owns its systems end-to-end, and every engineer should be able to diagnose and fix issues in their area of responsibility.

This role is for someone who enjoys working with real infrastructure (OS, hardware/virtualization, networks), not just cloud abstractions.

What You'll Do

• Work primarily with on‑premise infrastructure (bare metal and VMs): setup, maintenance, troubleshooting
• Drive clarity in ambiguous situations by defining requirements, assumptions, and next steps
• Own automation projects end‑to‑end (design → rollout → maintenance)
• Improve how we operate: harden and tune systems and also improve the way the team works in terms of operational hygiene
• Keep the platform stable, fast, and secure: servers, web servers, databases, queues
• Investigate production incidents across OS / networking / infrastructure layers, apply temporary mitigations, coordinate with developers and participate in post‑mortems
• Participate in on‑call rotations
• Use AI in all aspects of day‑to‑day work: researching, troubleshooting, developing

Requirements

• 4+ years as a DevOps Engineer / SRE (or very close responsibilities)
• Real, hands-on experience with servers (VMs, bare metal) at the OS level and below: configuring, troubleshooting, digging into “why it’s broken”
• Confident Linux skills (we use Ubuntu). We expect you to be comfortable with the core tools from Linux Crisis Tools
• Solid understanding of networking basics; ability to configure and troubleshoot iptables
• Ansible + Git
• Experience with Bash or Python scripting for automation/observability
• Production/on‑call experience: diagnosing incidents, restoring service, participating in post‑mortems
• Ownership and attention to detail. Downtime is expensive: five years ago, 10 minutes of downtime cost us $100k — today it’s even more

Nice to Have

We understand it’s impossible to be an expert in everything, but it’s important to have solid hands-on experience in two or more of the areas below:

• ClickHouse, MongoDB: what each database is used for, monitoring, troubleshooting performance and slow queries, sharding
• Kafka: operating clusters at scale (topic moves, broker replacements, tuning)
• Redis: high‑load tuning, replication, sharding, performance monitoring
• Elasticsearch: configuration, scaling, sharding/cluster management
• HAProxy / Nginx: load balancing, SSL/TLS, caching, reverse proxying, performance monitoring
• OS tuning: kernel/network stack/filesystem parameters for high‑load systems
• Full Disk Encryption on LVM: We use Clevis + Tang in production
• Infrastructure Security: Teleport, HashiCorp Vault

Bonus points

Great if you’ve worked with any of the following:

• VictoriaMetrics and how it differs from the Prometheus stack
• Complex CI/CD pipelines. We use scripted Jenkins pipelines
• Bare‑metal Kubernetes: provisioning, networking (MetalLB or alternatives), isolation from the internet, scaling across providers (like OVH, Hetzner) and integration with existing infrastructure
• Flux and GitOps
• Terraform

Why work with us

• A strong, collaborative product team that owns what it builds
• Clear product vision and access to real customer feedback from global nonprofit leaders
• Flat structure: no politics, just great work with great people
• Transparent company culture-we share how we’re growing, where revenue comes from, and what’s next
• Long-term focus: we offer equity options and value sustained, meaningful contribution

Benefits

• Private medical insurance for the employee and their family
• 20 paid vacation days per year
• 15 paid public holidays per year
• 5 company-paid sick leave days
• English learning courses.
• Relevant professional education.
• Gym or swimming pool.
• Home Office Setup Assistance: the company offers assistance with purchasing furniture (office chair, office desk, monitor) and other items to create a comfortable workspace.
• Co-working.
• Remote working.

_{**Please note: All official correspondence from Fundraise Up will exclusively originate from the @fundraiseup.com domain. Exercise caution and ensure the authenticity of emails claiming to be from our company.}

About the Role

Fivetran is looking for a high-performance engineer to join a team of Site Reliability Engineers. You will be working closely with engineering teams, product managers, and support and sales engineers to build the future of Fivetran Data Platform Reliability. 

As a member of the Site Reliability Engineering team, you will take ownership of the overall performance and reliability of Fivetran’s infrastructure, the robustness of the deployment pipeline, as well as timely and effective incident response and resolution. You will take responsibility for the growth and stability of Fivetran’s infrastructure, and be a key player driving effective incident response and overall issue avoidance. 

Technologies You’ll Use

• Managed Kubernetes, GCP, AWS, Azure Cloud platforms, and Temporal Cloud platform
• ArgoCD, Terraform, Pulumi, Grafana, Buildkite, PostgreSQL
• Python, Go, Java, Bash/Shell Scripting
   

What You’ll Do

• Responsible for the ongoing reliability and robustness of Fivetran’s production infrastructure by monitoring availability, capacity, and throughput.
• Collaborate with engineering teams to integrate reliability best practices into the product roadmap
• Support the prioritization and resolution of critical bugs identified by support or sales.
• Contribute to maintaining the high reliability and availability of production infrastructure by collaborating with engineering to implement automation for scalable deployments
• Ensure scalable artifacts deployment to all environments through automation scripts
• Proactively monitor infrastructure vulnerabilities and collaborate with the security team to promptly address them.
   

Skills We’re Looking For

• 7+  years of  experience working with SaaS platforms at scale 
• Expertise in managed Kubernetes (EKS, AKS, and GKE)
• Knowledge of Cloud Platforms and related tooling: AWS, Azure, GCP, Terraform, Ansible, Buildkite, Pulumi, and ArgoCD
• Experience in Python, Shell scripting, and Go. Bonus if you have Java
• Experience with Linux operating systems, internals, and administration 
• Experience with cloud networking like Managed NAT Gateways, VPNs, Privatelinks, and Private Service Connect (GCP)
• Experience with databases such as PostgreSQL

#LI-IM1
#LI-HYBRID

We are looking for a DevOps Engineer to lead the automation of our hybrid infrastructure in our offices in Warsaw/Poland or Belgrade/Serbia. You will be responsible for managing a diverse environment that includes both AWS cloud services and on-premise bare-metal servers. A significant part of this role involves evolving our database operations—moving away from manual tasks toward a fully automated, scalable, and observable data platform.

Key Responsibilities:

• Hybrid Infrastructure Management: Design and maintain IaC for both AWS (RDS, EC2) and physical bare-metal servers using Terraform/Terragrunt and Ansible.
• Advanced Automation & Scripting: Develop custom tools and scripts (using Python or Go) to automate complex workflows that off-the-shelf tools can't handle.
• Database Lifecycle Automation: Automate provisioning, configuration tuning, and schema migrations. Work closely with DBAs to eliminate manual toil through code.
• Observability: Build and maintain high-fidelity monitoring for databases and system health using the Prometheus stack.
• Security & Compliance: Centralize secret management and access control using HashiCorp Vault.
• Knowledge Sharing: Act as a subject matter expert, documentation enthusiast, and mentor for the team as we evolve our infrastructure practices.

Technical Requirements:

• Experience: 3+ years in DevOps/SRE with a focus on infrastructure automation.
• Hybrid Ops: Proven experience managing both Cloud (AWS) and On-prem (Linux bare-metal) environments.
• Tooling: Expert-level knowledge of Ansible and Terraform/Terragrunt.
• Development Skills: Strong proficiency in Python or Go for infrastructure scripting and internal tooling.
• Linux Internals: Deep understanding of Linux systems, disk I/O optimization, and networking.

Nice to Have (The "Extra Mile"):

• Kubernetes (K8s) Expert: Hands-on experience with K8s (EKS or self-managed).
• Databases in K8s: Experience (or a strong desire to lead the transition) of running stateful workloads (Databases) inside Kubernetes using Operators or Helm.
• Mentorship: A passion for teaching and sharing K8s/Automation best practices with colleagues to level up the entire team.

What We Offer:

• The chance to work on complex, high-load systems where "manual" is a forbidden word.
• A collaborative environment where your architectural decisions directly impact the stability of the product.
• Modern stack and the freedom to introduce new tools that solve real problems.

The Corporate IT department is seeking a Senior DevOps Engineer to lead infrastructure automation, reliability, and scalability initiatives across our multi‑cloud, multi‑region environments. This position requires deep hands‑on experience with AWS, Kubernetes, containerization, and DevOps automation practices.

You’ll work in a dynamic and fast‑moving environment where priorities can shift quickly — flexibility, ownership, and problem‑solving under changing conditions are key to success.

✅ Responsibilities:

✔️Cloud Infrastructure & Automation: 

• Architect, deploy, and manage scalable environments in AWS and Azure within multi‑tenant, multi‑account structures.
• Implement Infrastructure as Code (IaC) using Terraform, Ansible, and GitOps frameworks such as Flux.

✔️Kubernetes & Container Platform Operations: 

• Operate and optimize Kubernetes clusters for security, scalability, and reliability.
• Manage components like Istio (service mesh), Kyverno (policy enforcement), Calico (networking and security), and Spegel (image distribution).

✔️CI/CD and Deployment Pipelines:

• Build and improve CI/CD pipelines to ensure consistent, automated delivery across development and production.
• Integrate container image lifecycle management and GitOps deployment workflows.

✔️Traffic Management & Load Balancing:

• Design and maintain traffic routing and service mesh configurations to achieve high availability and low latency. 
• Support load balancing strategies for distributed and multi‑region applications.

✔️Security & Secret Management:

• Own secret management and identity integration using HashiCorp Vault and AWS Secrets Manager.
• Establish secure practices for secret distribution, access control, and auditing.

✔️Monitoring, Observability & Backups:

• Extend observability coverage with Prometheus, Grafana, and VictoriaMetrics.
• Ensure reliable backup, restore, and disaster recovery mechanisms for critical systems.

✔️Collaboration, Adaptability & Mentoring:

• Cooperate with other DevOps and system engineers to align workflows and support cross‑functional goals.
• Stay adaptable — priorities may shift rapidly as new critical initiatives arise.
• Share best practices, create technical documentation, and mentor teammates in DevOps culture and tools.

✅ Requirements:

✔️5+ years in DevOps, Site Reliability, or Infrastructure Engineering roles.

✔️Advanced knowledge of Kubernetes (operations, networking, policy, and automation).

✔️Expertise in Docker, Terraform, Ansible, and scripting (Bash, Python, or Go).

✔️Proven experience managing multi‑account or multi‑region AWS environments.

✔️Deep understanding of traffic routing, ingress, and service mesh (Istio, Envoy).

✔️Strong expertise with HashiCorp Vault and AWS Secrets Manager.

✔️Familiarity with GitOps principles (Flux, ArgoCD).

✔️Excellent troubleshooting, communication, and cross‑team collaboration skills.

✔️Comfortable working in a fast‑paced, ever‑changing environment with shifting priorities.

✅ Nice to Have:

✔️Exposure to FinOps and cost optimization in cloud environments.

✔️Experience with compliance frameworks (SOC2, ISO 27001, PCI DSS).

✔️Familiarity with Azure DevOps or Bicep/ARM templates.

The Role

Telnyx infrastructure team is building a next-generation platform that spans across multiple cloud providers and multiple continents. We leverage the Telnyx private backbone network with cross-connects to major cloud providers like AWS, Azure, GCP, and IBM Cloud to build a cloud-agnostic, highly available platform. With our lean team, we're currently running infrastructure in 10 PoPs and 3 continents.

In This Role You Will

• Design, develop, and deploy scalable solutions for managing databases like PostgreSQL, MySQL, Cassandra, Kafka, RabbitMQ, Redis, and others, both in virtualized environments and Kubernetes clusters.
• Collaborate with engineering to identify and resolve pain points in managing large-scale, high-availability database infrastructure.
• Lead the migration of existing database services from VMs to Kubernetes, ensuring minimal downtime and seamless transitions.
• Support disaster recovery, backup strategies, and performance tuning for on-premise database systems.
• Implement and manage observability, logging, and alerting systems. 

Must-Have Experience:

• 3+ years of professional experience in infrastructure operations, especially in Linux-based systems.
• Expertise in at least one deployment and orchestration technology (Kubernetes, Ansible, or Terraform), with a focus on deploying and managing stateful applications
• Skills in scripting languages such as Bash, Python, or similar, to automate workflows and manage infrastructure.
• Hands-on experience managing at least one relational databases like PostgreSQL or MySQL

You’d Be A Good Fit If You Have

• Experience with non-relational databases such as Cassandra, OpenSearch, or other distributed data stores.
• Familiarity with streaming and messaging platforms like Kafka or RabbitMQ, including scaling and monitoring in a distributed setup.
• Proficiency in observability tools like Prometheus, Grafana, ELK stack, or others to ensure system performance and reliability.

Bonus Points For:

• Knowledge of service discovery tools like Consul, or similar technologies, would be a great advantage

Growth Opportunities: 

• Act as a strength multiplier to product engineering efforts. 
• Learn about every technology stack used at Telnyx. 
• Work at the intersection of the social and the technical, with growth opportunities in both.

#LI-KG1

#LI-REMOTE

We are looking for a skilled Senior DevOps Engineer in our office in Belgrade, Serbia.

✅ Requirements:
✔️ You know Kubernetes on bare metal (we use kubespray for deployment) and can deploy new one
✔️ Have experience with Istio and Calico
✔️ Have practical experience with Helm (write new charts / edit old)
✔️ Terraform and Ansible are familiar tools for you
✔️ Hands on experience with Prometheus and ELK in cluster
✔️ Experience with Linux and its components (Debian-based)
✔️ Experience with CI/CD system (GitLab preferably)
✔️ Advanced level of English
✔️ Nice to have AWS or GCP experience

✅ Could be a plus:
✔️ Practical experience with CloudFlare

✅Opportunities & tasks
✔️Manage, maintain, configure, and deploy kubernetes clusters
✔️Improve existing helm charts and write new one
✔️Work with Developers team to enhance production stability, availability, and reliability
✔️Monitor system performance
✔️Build and maintain CI / CD pipeline using GitLab
✔️Work with Cloud Providers
✔️Work with CloudFlare