Senior SRE / DevOps Engineer, Kubernetes, A2P Messaging

Digital New Agency

. Use AI-assisted engineering for infrastructure tooling, automation, documentation and runbooks .

Posted 9/17/2026full-timeRemote • PolandSenior💰 PLN 150 - PLN 190 per hourWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in Kubernetes infrastructure management, including deployment mechanisms, observability, and disaster recovery. Proficient in operating PostgreSQL and implementing security hardening practices in high-availability environments.

Highest-signal resume keywords

Kubernetes Infrastructure ManagementPostgreSQL OperationsInfrastructure-As-CodeTelecom Protocols KnowledgeProduction Incident Response

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

KubernetesPostgreSQLInfrastructure-As-CodeCI/CDSMPPSIPSS7LinuxTCP WorkloadsMonitoring and Alerting

Soft Skills

CollaborationTroubleshootingCommunication

Tools & Technologies

TcpdumpTLSIPsecLoad BalancingMetricsLogsDashboardsAlerting

Industry Keywords

TelecomCarrierMessagingPersistent Network ConnectionsDisaster RecoveryHigh AvailabilityNetwork Diagnostics

Tech Stack

Tools & technologies

FirewallsKubernetesLinuxPostgres

About the role

Key responsibilities & impact

Use AI-assisted engineering for infrastructure tooling, automation, documentation and runbooks
Build and operate Kubernetes infrastructure across two sites using infrastructure-as-code and automated delivery
Design deployment mechanisms that gracefully drain long-lived connections during releases
Own platform networking, including stable ingress and egress IPs, Layer 4 load balancing, TLS and external-provider connectivity
Build and operate observability with metrics, logs, dashboards and alerting
Design monitoring around production behaviour, individual connections and failure modes
Own certificate lifecycle, secrets management and platform access control
Operate highly available PostgreSQL, including replication, failover, backups and verified restores
Design and exercise backup and disaster-recovery procedures across two sites
Collaborate with engineers and QA on performance and production-scale load testing
Support migration and production cutovers
Participate in production incident response and a 24×7 on-call rotation during steady-state operation
Build and operate a high-volume A2P messaging platform processing approximately 1 million messages daily for around 175 customers and 120 suppliers, with more than 300 long-lived messaging connections
Follow the platform through production readiness, migration, hypercare and steady-state operation

Requirements

What you’ll need

Experience with telecom, carrier, messaging or other environments built around persistent network connections
Knowledge of SMPP, SIP, SS7 or similar telecom protocols
Strong production experience operating Kubernetes on self-managed, on-premise or similarly infrastructure-heavy environments
Experience with stateful, long-lived TCP workloads on Kubernetes, including connection draining, stable ingress/egress, Layer 4 load balancing and deployment behaviour
Strong Linux and networking fundamentals
Ability to diagnose routing, NAT, firewalls, MTU, TLS and packet-level behaviour
Practical troubleshooting experience with tcpdump and production network diagnostics
Experience designing monitoring and alerting
Strong infrastructure-as-code and CI/CD experience for containerised systems
Practical PostgreSQL operations experience, including replication, failover, backup and verified restore
Ability to work directly with engineers from external infrastructure and network providers
Professional English
Real production on-call and incident-response experience
Experience configuring or troubleshooting IPsec connectivity with external parties
Experience designing or operating multi-site active-active or active-passive environments
Hands-on disaster-recovery exercise experience
Performance engineering experience, including Linux kernel or network tuning for high connection counts
Security hardening experience, including CIS-style benchmarks, vulnerability management or software supply-chain practices
Experience being the first SRE or Platform Engineer on a system

Benefits

Comp & perks

Fully remote work in Poland or work from the Łódź office
Autonomy and responsibility
Diversity and psychological safety at work
Agile and DevOps working environment
Greenfield infrastructure with influence over architecture and operational practices
Small senior team with short decision paths
Direct collaboration with engineers and the solution architect
AI-assisted tooling where it improves engineering and operational work