Site Reliability Engineer

Modus Create; Polska; Remote; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Remote work

Competitive salary

Job summary

Modus Create is seeking a Senior Site Reliability Engineer to design, build, and operate reliable, observable systems across a modern backend stack. You will collaborate with developers, platform engineers, and operations to reduce toil, improve uptime, and prevent incidents at scale.

As a Senior SRE, you will own 24/7 on-call rotations, define SLAs and error budgets, mentor junior engineers, and drive improvements in performance and automation while supporting AI workloads and containerized

Qualifications

• 6+ years hands-on experience in SRE, DevOps, or Platform Engineering at scale.
• Strong proficiency in one cloud platform: AWS expertise (ALB, ECS/Fargate, RDS Aurora, Lambda, IAM).
• Production Python backend experience; comfortable debugging Python services in containers and Lambdas.

Responsibilities

• Design observability systems (metrics, logging, tracing) and define SLOs and budgets.
• Own 24/7 on-call rotation with 10-minute acknowledgment SLA.
• Establish reliability standards and SLA targets for backend services.
• Mentor and onboard additional SRE engineers as team scales.
• Participate in incident response, troubleshooting, and postmortems.
• Build self-healing automation and toil-reduction initiatives.
• Collaborate with teams to integrate reliability into delivery.
• Support AI workloads and modern cloud workloads; ensure operational excellence.
• Create runbooks, architecture docs, and troubleshooting guides.
• Review infrastructure changes and contribute to reliability standards.

Skills

SRE experience

AWS

Python

Kubernetes

Terraform

CI/CD

On-call

Observability

Troubleshooting

Linux

Tools

Docker

Git

Terraform

CloudFormation

Pulumi

Jira

Job description

About Us

Modus Create is a digital consulting partner that helps ambitious organizations design, build, and modernize digital products, platforms, and AI-powered experiences. We work shoulder-to-shoulder with client teams to move from idea to production quickly and sustainably, with a clear path to scale.

Site Reliability Engineer Engineer

Remote, Contract

About Us

Modus Create is a digital consulting partner that helps ambitious organizations design, build, and modernize digital products, platforms, and AI-powered experiences. We work shoulder-to-shoulder with client teams to move from idea to production quickly and sustainably, with a clear path to scale. Founded in 2011, Modus is a global, fully remote team of world-class technologists who thrive in a collaborative, innovative environment. We're a digital product engineering partner for forward-thinking businesses. Our global teams work side-by-side with clients to design, build, and scale custom solutions that achieve real results and lasting change, partnering with industry leaders including AWS, GitHub, and Atlassian. We were fully remote before it was cool! Recognized as one of the Inc. 5000 Fastest Growing Private Companies for nine years and a top remote work company by FlexJobs, we have helped some of the world’s largest brands deliver powerful digital experiences.

Opportunity

We are seeking an experienced Site Reliability Engineer to build reliable, observable systems that enable client teams to operate with confidence at scale. You'll work embedded within cross-functional teams—partnering with developers, platform engineers, and operations teams—to reduce toil, improve system reliability, and prevent incidents before they impact users.

As a Senior Site Reliability Engineer, you take ownership of system reliability across our full backend stack—from AWS infrastructure (ALB, ECS/Fargate, Aurora) to Python services. You design and maintain observability systems, define SLAs and error budgets, build incident response processes, and drive improvements in uptime and performance. You'll participate in 24/7 P0 on-call rotations with a 10-minute acknowledgment SLA, lead incident investigations and postmortems, and help teams shift from reactive firefighting to proactive reliability engineering. You'll also mentor and onboard additional SRE engineers as the team scales from 4 to 8-12 over the coming months.

The Site Reliability Engineer will work shoulder-to-shoulder with cross-functional teams to ensure systems remain resilient, scalable, and observable across client environments. You'll also have opportunities to advise leadership on reliability strategy and help shape how organizations approach operational excellence.

Requirements

• 6+ years hands-on experience in SRE, DevOps, or Platform Engineering at scale
• Strong proficiency in one cloud platform: Deep AWS expertise (ALB, ECS/Fargate, RDS Aurora, Lambda, IAM)
• Production Python backend engineering experience; comfortable debugging and optimizing Python services in containers and Lambdas
• Site Reliability Engineering roles require participation in the on-call rotation, with support duty during and after business hours
• Experience building or bootstrapping SRE programs from scratch
• Hands-on experience with incident response, on-call rotations, postmortems, and SLOsDeep experience designing and implementing observability (metrics, logging, tracing, alerting)
• Solid understanding of containerization (Kubernetes, Docker) and deployment automation
• Experience writing and maintaining infrastructure-as-code (Terraform, CloudFormation, Pulumi, etc.)
• Hands-on experience with CI/CD pipelines and deployment strategies
• Ability to troubleshoot distributed systems and production issues with debugging complex failures
• Clear communication skills and the ability to explain reliability trade-offs to stakeholders
• Scripting proficiency (Python, Bash, Go); Linux/Unix administration fundamentals
• Version control (Git), collaboration workflows, and infrastructure automation patterns

Key Responsibilities & Deliverables

• Design observability systems (metrics, logging, tracing) and define SLOs, error budgets, and monitoring strategies aligned with business needs
• Own 24/7 P0 on-call rotation with 10-minute acknowledgment SLA; validate and elevate AI-generated incident reports to platform teams
• Establish reliability standards and SLA targets for backend services
• Mentor and onboard additional SRE engineers as team scales to 8-12
• Participate in incident response, troubleshooting, root‑cause analysis, and postmortems
• Implement reliability improvements, capacity planning, and performance optimization
• Build self-healing automation and toil-reduction initiatives to minimize manual operational work
• Collaborate with teams to integrate reliability and observability into delivery
• Support modern workloads including AI applications and services; understand their operational and reliability requirements
• Create runbooks, architecture documentation, and troubleshooting guides to enable independence
• Review infrastructure changes and contribute to reliability standards and consistency
• Actively tune systems for latency, throughput, and resource efficiency based on observability data

Team Collaboration

• Availability for regular working sessions and discovery workshops with client teams
• Ability to work independently while collaborating with client & Modus leaders
• Overlap with client business hours daily is expected
• Reliable high-speed internet is a must
• Documenting solutions, sharing learnings with the team, contributing to internal wikis and runbooks
• Pair program and collaborate on complex reliability and operational problems
• Welcome code and architecture reviews; seek input on reliability designs
• Ability to coordinate with security, platform, and development teams on reliability and operations

Bonus Skills

• Experience designing or operating internal developer platforms
• Familiarity with chaos engineering, resilience testing, or failure scenario planning
• Cloud security and compliance experience (audit readiness, security hardening)
• Experience with AI infrastructure, LLM serving, or agentic system operations
• Mentoring junior engineers or leading technical design discussions
• Cost optimization and cloud FinOps practices
• Experience with AI-generated incident reports and validation workflows
• Python performance tuning and backend optimization
• Building SRE programs in high-growth or fast-scaling environments

You’ll Love

• Learn from every incident and continuously improve systems
• Solve challenging reliability, observability, and operational problems
• Work with modern cloud platforms, Kubernetes, infrastructure-as-code, and observability
• Make a direct impact on system uptime, performance, and operational efficiency
• Collaborate with great teams and help shape enterprise reliability and SRE best practices
• Support teams operating AI applications and services reliably and safely at scale
• By joining our team, you'll be part of a winning squad that plays to each other's strengths and celebrates every success together