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Sr. Developer

Apolis
  • Hartford, CT
  • $42–$44 Per Hour
  • Instant Apply
21 days ago

Job Description

Role: Developer
Hartford - CT
Hybrid
Rate:***/hr
Client :Insurance

Required skills:

" F5 Technologies: F5 BIG-IP LTM, GTM, ASM/Advanced WAF, APM configuration, administration, and troubleshooting.
" Scripting & Automation: iRules (TCL-based), iApps, F5 AS3, DO (Declarative Onboarding), TS (Telemetry Streaming), and REST API integration.
" Application Development: Server-side and application-tier development (Java, Python, Node.js, or .NET) with understanding of how applications interact with load balancers and reverse proxies.
" Networking: TCP/IP, HTTP/HTTPS, DNS, SSL/TLS, VLAN, SNAT, routing protocols (BGP, OSPF), and packet-level troubleshooting (tcpdump, Wireshark).
" Cloud Platforms: Experience with F5 VE deployments on AWS (ELB/ALB/NLB integration), Azure (Application Gateway), or GCP; understanding of cloud-native load balancing services.
" CI/CD & IaC: Ansible playbooks for F5, Terraform F5 provider, Jenkins/GitLab CI integration for automated deployments.
" Monitoring & Observability: Splunk, ELK, Grafana, or F5 Analytics/AVR for traffic visibility, dashboarding, and alerting.
" Security: WAF policy tuning, DDoS mitigation, bot management, zero-trust principles, and security hardening of application delivery infrastructure.

Job Description/ Responsibilities

1.Design, configure, and manage F5 BIG-IP Local Traffic Manager (LTM) virtual servers, pools, nodes, and monitors for enterprise applications across multiple environments (Development, QA, Staging, Production).
2.Develop and maintain iRules, iApps, and Local Traffic Policies to enable advanced traffic steering, header manipulation, URI-based routing, SSL offloading, and content switching.
3.Implement and manage F5 BIG-IP Global Traffic Manager (GTM / DNS) for geographic load balancing, disaster recovery failover, and multi-data-center traffic distribution.
4.Configure and troubleshoot SSL/TLS termination, certificate management, and end-to-end encryption across the F5 platform, including integration with enterprise PKI and certificate authorities.
5.Build and maintain health monitors (HTTP, HTTPS, TCP, UDP, custom scripted) to ensure proactive detection of application and service degradation.
6.Support application development teams by integrating load balancing configurations into CI/CD pipelines and Infrastructure-as-Code (IaC) workflows using Ansible, Terraform, or F5 AS3/DO declarative APIs.
7.Perform capacity planning, traffic analysis, and performance tuning of F5 appliances and virtual editions (VE) to meet SLA and throughput requirements.
8.Troubleshoot complex application delivery issues spanning L4 L7 layers, including packet captures, SSL handshake failures, persistence problems, and asymmetric routing.
9.Manage F5 Advanced WAF (Web Application Firewall) policies to protect applications against OWASP Top 10 vulnerabilities, bot traffic, and DDoS attacks.
10.Collaborate with network, security, and application teams to architect resilient, scalable load balancing solutions aligned with enterprise standards.
11.Maintain documentation including topology diagrams, runbooks, change records, and standard operating procedures for all F5 and load balancing configurations.
12.Participate in on-call rotations and provide L3 support for production incidents involving application delivery and traffic management.

Numbers & Facts

LocationHartford, CT
IndustryComputer/IT Services
Salary$42–$44 Per Hour
Company Size500 to 999 employees
Websitehttps://www.apolisrises.com/

Benefits

Paid Sick Days, Employee Referral Program, Employee Events, Retirement / Pension Plans

About Company

Since 1996, RJT has provided successful SAP, Oracle, and IT consulting solutions and staffing services to clients around the world. The new Apolis brings you the same personalized service fortified with a greater array of IT solutions, global expertise, and cost-management strategies.

We are a global IT consultancy that seamlessly integrates experts and leading-edge solutions into your organization so you can focus on what really matters.

Skills

  • ActionScriptunmatched
  • Amazon Web Services (AWS)unmatched
  • Ansibleunmatched
  • Application Programming Interface (API)unmatched
  • Applications Securityunmatched
  • Capacity Managementunmatched
  • Certificate Authoritiesunmatched
  • Cloud Computingunmatched
  • Continuous Deployment/Deliveryunmatched
  • Continuous Integrationunmatched
  • Cryptographyunmatched
  • DNS (Domain Name System)unmatched
  • Denial of Service (DoS)unmatched
  • Digital Certificatesunmatched
  • Distribution Servicesunmatched
  • Enterprise Applicationsunmatched
  • F5 BIG-IPunmatched
  • F5 Network Softwareunmatched
  • Failoverunmatched
  • GCP (Good Clinical Practices)unmatched
  • HTTP (HyperText Transport Protocol)unmatched
  • HTTPS (HyperText Transport Protocol Secure)unmatched
  • Health Maintenanceunmatched
  • Identify Issuesunmatched
  • Insuranceunmatched
  • Intellectual Property (IP)unmatched
  • Javaunmatched
  • Jenkinsunmatched
  • Load Balancingunmatched
  • Microsoft .NETunmatched
  • Microsoft Windows Azureunmatched
  • Network Operations Centerunmatched
  • Network Securityunmatched
  • Network Traffic Analysisunmatched
  • Node.jsunmatched
  • On Callunmatched
  • Onboardingunmatched
  • Performance Tuning/Optimizationunmatched
  • Production Supportunmatched
  • Public Key Infrastructure (PKI)unmatched
  • Python Programming/Scripting Languageunmatched
  • Quality Assuranceunmatched
  • REST (Representational State Transfer)unmatched
  • Reporting Dashboardsunmatched
  • SSL-TLS (Secure Socket Layer - Transport Layer Security)unmatched
  • Scripting (Scripting Languages)unmatched
  • Security Policyunmatched
  • Server Programming/Applicationsunmatched
  • Service Level Agreement (SLA)unmatched
  • Software Administrationunmatched
  • Software Developmentunmatched
  • Splunkunmatched
  • TCP (Transmission Control Protocol)unmatched
  • Tcl-Tkunmatched
  • Telemetryunmatched
  • Testingunmatched
  • Theater Productionunmatched
  • UDP (User Datagram Protocol)unmatched

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