CrawlJobs Logo

Senior Software Engineer - Go (Next-Gen Firewall)

qualgo.net Logo

Qualgo

Location Icon

Location:
Vietnam , Ho Chi Minh City

Category Icon
Category:
IT - Software Development

Job Type Icon

Contract Type:
Not provided

Salary Icon

Salary:

Not provided
Save Job
Save Icon
Apply Position

Job Description:

We are seeking a Senior Backend Engineer (Go) to join our core engineering team building a Next-Generation Firewall (NGFW) powered by Artificial Intelligence. In this role, you will architect and develop the high-performance control plane and data processing engines that protect enterprise networks from sophisticated cyber threats. You will not just build APIs; you will bridge the gap between low-level network traffic analysis and high-level threat intelligence. You will integrate industry-standard engines like Suricata, Squid, and OPNsense into a unified, AI-driven security platform. You will work on complex technical challenges involving zero-trust architecture, real-time packet inspection, and massive-scale threat data pipelines.

Job Responsibility:

  • Design and implement high-performance Go services that interact with network subsystems (netfilter/nftables) and open-source security engines (Suricata, Squid, Zeek)
  • Design and implement routing functionalities on low resource gateway system
  • Develop custom plugins or sidecars to ingest, parse, and normalize IDS/IPS alerts (Suricata EVE logs) and Proxy logs for the AI engine
  • Build the "Action Engine" that translates AI threat verdicts into real-time blocking rules (firewall policies, BGP blackholing, or DNS sinkholing)
  • Deeply integrate with OPNsense APIs/plugins to orchestrate policy updates across distributed firewall nodes
  • Architect scalable gRPC and REST APIs to serve as the control plane for thousands of firewall agents
  • Write highly optimized, concurrent Go code to handle high-throughput log ingestion with minimal latency/GC overhead
  • Design distributed locking and consistency mechanisms to ensure firewall policies are synchronized globally across multi-tenant environments
  • Build low-latency pipelines using Kafka or NATS JetStream to stream network telemetry to our AI/ML inference engine
  • Implement WebSocket or HTTP/2 streaming for real-time threat visualization and alerting dashboards
  • Collaborate with Data Scientists to ensure network data (PCAP, flow logs) is efficiently structured for anomaly detection models
  • Optimize system performance for high packet-per-second (PPS) processing and low-latency throughput
  • Debug complex networking issues (TCP handshake failures, MTU issues, asymmetric routing) using tools like tcpdump, Wireshark, and eBPF
  • Implement rigorous telemetry (Prometheus/Grafana) to monitor the health of distributed firewall nodes
  • Provide technical guidance on Go best practices, concurrency patterns, and secure coding standards
  • Work closely with the Security Research team to understand new attack vectors and implement detection logic

Requirements:

  • Bachelor's or Master’s degree in Computer Science, Cybersecurity, Network Engineering, or related field
  • Deep understanding of goroutines, channels, memory management, and profiling (pprof)
  • Strong grasp of the OSI model, TCP/IP, DNS, TLS/SSL, VPNs (WireGuard/IPsec), and Routing
  • Experience with Docker, Kubernetes, and deploying network appliances on AWS/GCP/Azure
  • Production experience with Kafka, RabbitMQ, or NATS
  • Good English skills (speaking and listening) to communicate with the global teams
  • Hands-on experience with Suricata, Snort, Zeek, or Squid Proxy
  • Familiarity with OPNsense or pfSense architecture is a huge plus

Nice to have:

  • Experience with eBPF (Cilium/Ebpf-go) for high-performance packet filtering
  • Knowledge of DPDK or XDP for kernel-bypass networking
  • Understanding of B2B SaaS multi-tenancy requirements
  • Experience implementing Zero Trust Network Access (ZTNA) concepts
What we offer:
  • Meaningful work & impact
  • Competitive rewards
  • Growth & well-being
  • People & workspace
  • Young & dynamic environment

Additional Information:

Job Posted:
January 10, 2026

Icon
Qualgo - All Job Offers
Job Link Share:
Copy Link Icon
Facebook Icon Twitter Icon LinkedIn Icon

Looking for more opportunities? Search for other job offers that match your skills and interests.

Briefcase Icon

Similar Jobs for Senior Software Engineer - Go (Next-Gen Firewall)

New

Earned Value Management Senior Analyst

Astrion has an exciting opportunity for a EVM Senior Analyst to support the USAF...
Location
Location
United States
Salary
Salary:
145000.00 - 165000.00 USD / Year
astrion.us Logo
Astrion
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Bachelor’s degree and 8+ years of work experience or equivalent experience
  • Proficiency in Microsoft Office tools
  • Experience communicating and presenting financial and earned value management data to other functions in an accurate, concise, and understandable manner
  • Strong interpersonal skills
  • Ability to prioritize and self-manage a multi-tasked workload in a fast-paced environment
  • Understanding of earned value management metrics and impact on program financial management
  • Ability to make decisions with sound judgment while complying with policies and procedures
  • Ability to develop and maintain professional and effective relationships with internal and external customers
  • MUST have an active Secret security clearance
Job Responsibility
Job Responsibility
  • Serve as the Earned Value Management Lead
  • Coordinate with program team lead and deputy cost chief in conjunction with branch management, division managers, and financial management
  • Utilize Power BI to perform data analysis and provide updated dashboards to stakeholders
  • Earned value analysis assessment of the Program Contractor’s utilization of management reserve and undistributed budget to ensure traceability to the approved baseline and compliance with proper processes and procedures
  • Review and analyze EVM data from the Integrated Program Management Data Analysis Report (IPMDAR) and EVM-CR database, identifying threshold breaches and presenting corrective action recommendations
  • Review contractor-provided EACs for accuracy, identifying overly pessimistic or optimistic assumptions for leadership awareness
  • Analyze Budget Change Requests and provide analysis to Government and feedback to contractors in accordance with EIA-748 guidelines and contractor’s Earned Value Management System (EVMS)
  • Review Earned Value Techniques (EVT) and analyze applicability toward control accounts and impact on ability to measure performance
  • Utilize earned value and schedule data to forecast and estimate Program Contractor’s ability to meet contract type targets, incentives, and share ratios
  • Scrutinize schedule baselines to confirm critical path accuracy, proper sequencing, absence of level-of-effort distortion, and ability to meet DCMA 14-point assessment standards
What we offer
What we offer
  • Competitive salaries
  • Continuing education assistance
  • Professional development
  • Multiple healthcare benefits package options
  • 401K with employer matching
  • Competitive time off policy along with a federally recognized holiday schedule
  • Fulltime
Read More
Arrow Right
New

Cleared Senior/Principal R&D Systems Engineer - W80-4 System Engineering

Location
Location
United States , Albuquerque; Livermore
Salary
Salary:
139900.00 - 280600.00 USD / Year
sandia.gov Logo
Sandia National Laboratories
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • A Bachelor's degree in a relevant discipline and five (5) years of directly relevant experience, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development.
  • Active DOE Q or DoD TS security clearance
Job Responsibility
Job Responsibility
  • Develop and refine plans and processes to sustain the W80-4 stockpile.
  • Mature and manage requirements for specific areas/components
  • deliver technical solutions for critical design elements.
  • Lead systems integration with other systems engineers and product realization teams
  • represent Sandia on multi-organization project teams.
  • Drive achievement of First Production Unit (FPU) in 2027 through coordination with systems, component engineering, and production agency partners.
  • Partner with production agencies to identify and resolve system-level issues impacting production rate through Last Production Unit (LPU).
  • Lead peer reviews, anomaly investigations, and issue management.
  • Execute REST planning/testing, PETU activities, and the Annual Assessment Review.
  • Present results to peers, customers, and management in formal and informal settings.
What we offer
What we offer
  • Challenging work with amazing impact that contributes to security, peace, and freedom worldwide
  • Extraordinary co-workers
  • Some of the best tools, equipment, and research facilities in the world
  • Career advancement and enrichment opportunities
  • Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home)
  • Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance
  • Fulltime
Read More
Arrow Right
New

Retail Attendant

The Four Seasons Resort Hualalai is looking for a Retail Attendant who shares a ...
Location
Location
United States of America , Kailua-Kona
Salary
Salary:
23.51 USD / Hour
fourseasons.com Logo
Four Seasons
Expiration Date
Until further notice
Flip Icon
Requirements
Requirements
  • Successful candidate must possess legal work authorization in the United States
  • Ability to accurately read and work with a variety of computer systems
  • Possess one to three years of previous retail sales experience
  • A sincere willingness to perpetuate the Four Seasons Resort Hualalai philosophy of Aloha and Ho'okipa to promote a warm and friendly atmosphere among staff, peers, guests and residents
  • Strong organizational, interpersonal, and communication skills
  • Capability of multi-tasking and functioning well under pressure
  • Able to set priorities and adjust to changing conditions
  • Possess a high work ethic and sense of integrity
  • Works with a sense of responsibility and purpose for the roles filled within our team
  • Has a keen eye and interest for fashion, visual merchandising and the details of merchandise presentation
Job Responsibility
Job Responsibility
  • Provide our guests with exceptional customer service, while creating an atmosphere of authentic Hawaiian hospitality and Aloha
  • Present a professional image and character in appearance, words, and actions
  • Be an active participant in all Retail Department events and promotions
  • Create and build positive relationships with our guests, homeowners, co-workers, and venders
  • Strive to achieve all personal quantitative goals such as sales volume and units per transaction
  • Embrace all Four Season Resort Hualalai standards
  • Maintain a well organized and safe working environment
  • Participate in physical store inventories
  • Maintain visual presentation and merchandising standards
  • Make sure that you are up to date on all communications
What we offer
What we offer
  • An on-site Physical Therapist
  • 24-hour access to Indoor and Outdoor Gym
  • Holiday, Vacation & Sick pay
  • Robust Benefit Plan
  • Company Match 401K Plan
  • Laundered Employee Uniform
  • Free employee meals prepared by the Four Seasons Culinary 'Ohana
  • Complimentary stays at Four Seasons Worldwide
  • Training and Development Opportunities
  • Employee Recognition Programs
  • Fulltime
Read More
Arrow Right
New

Service Mechanic

Exciting Opportunity: Service Mechanic (Heavy Machinery & Automotive). Are you a...
Location
Location
Malaysia , Kuala Lumpur
Salary
Salary:
3500.00 - 8000.00 MYR / Month
https://www.randstad.com Logo
Randstad
Expiration Date
June 26, 2026
Flip Icon
Requirements
Requirements
  • 1–2 years of hands-on experience in heavy machinery or the automotive industry
  • Certificate or Diploma in Mechanical Engineering, Automotive Engineering, or a related field
  • Foundational knowledge of hydraulic and pneumatic systems is essential
  • Able to interpret technical manuals and blueprints with ease
  • A valid driving license and a willingness to travel frequently with flexible hours are required for this role
Job Responsibility
Job Responsibility
  • Performing comprehensive troubleshooting and repairs on mechanical, electrical, and hydraulic systems
  • Executing the setup of new components and machinery to strict manufacturer specifications
  • Conducting routine health checks to preemptively identify wear and reduce onsite breakdowns
  • Managing tools and inventory while traveling to various sites to provide elite technical support
  • Maintaining precise logs and providing detailed Field Service Reports to the Assistant General Manager
  • Fulltime
Read More
Arrow Right
New

Purchasing Executive

We are a leading global organisation in the renewable energy and electronics sec...
Location
Location
Malaysia , Kuala Lumpur
Salary
Salary:
4000.00 - 5500.00 MYR / Month
https://www.randstad.com Logo
Randstad
Expiration Date
July 05, 2026
Flip Icon
Requirements
Requirements
  • Minimum of a Diploma or Degree in Supply Chain, Engineering, Business Management, or a related field
  • At least one (1) year of experience in Purchasing, Engineering, or Business
  • Proven experience within a Manufacturing environment is a must
  • Experience in solar, wafer fabrication, semiconductor, or electronics industries is highly preferred
  • Proficiency in MS Office
  • Strong commercial experience in procurement scope
  • Excellent written and oral communication skills in English and Bahasa Malaysia
  • Fresh graduates in a related field are encouraged to apply
Job Responsibility
Job Responsibility
  • Manage the procurement of indirect materials and services
  • Identify, negotiate, and purchase materials/services using contract or corporate pricing
  • Conduct bids and utilise pricing and cost analysis techniques
  • Maintain the Approved Vendor List (AVL) and monitor supplier performance
  • Drive corporate-wide adherence to purchasing policies, business ethics, and signature authority
  • Coordinate with Finance on invoice approvals and Logistics for material deliveries and tax exemptions
  • Communicate and coordinate with global counterparts and international suppliers
What we offer
What we offer
  • Professional Growth: Opportunity to work within high-growth, technical industries
  • Global Exposure: Experience dealing with international supply chains and cross-border counterparts
  • Strategic Impact: A role that allows for direct involvement in cost optimisation and corporate policy compliance
Read More
Arrow Right
New

Demand Planner

A Regional FMCG Leader in Expansion Mode Our client is a prominent player in the...
Location
Location
Malaysia , Kuala Lumpur
Salary
Salary:
5000.00 - 8000.00 MYR / Month
https://www.randstad.com Logo
Randstad
Expiration Date
July 05, 2026
Flip Icon
Requirements
Requirements
  • FMCG Industry Acumen
  • Data Mastery
  • RTM & Supply Chain
Job Responsibility
Job Responsibility
  • Strategic Insight
  • Operational Oversight
  • The 'So What?'
Read More
Arrow Right
New

Senior Operation Executive

Our client is a well-established organisation within the FMCG/Manufacturing indu...
Location
Location
Malaysia , Kuala Lumpur
Salary
Salary:
4000.00 - 7000.00 MYR / Month
https://www.randstad.com Logo
Randstad
Expiration Date
July 02, 2026
Flip Icon
Requirements
Requirements
  • College/Pre-University
  • no additional skills required
  • no additional qualifications required
Job Responsibility
Job Responsibility
  • Handle the preparation of quotations, invoices, and delivery orders
  • Coordinate with the warehouse team to ensure stock availability meets order requirements
  • Maintain up-to-date sales, inventory, and customer databases
  • Assist management with daily reporting and sales-related administrative tasks
  • Manage incoming enquiries via phone and walk-in visits
  • Fulltime
Read More
Arrow Right
New

Senior Process Engineer

We are partnering with a well-established industrial manufacturing organization ...
Location
Location
Malaysia , Kuala Lumpur
Salary
Salary:
6000.00 - 8000.00 RM / Year
https://www.randstad.com Logo
Randstad
Expiration Date
June 28, 2026
Flip Icon
Requirements
Requirements
  • Degree in Mechatronics, Automation, or a related engineering field
  • At least 5 years of hands-on experience in electrical assembly and commissioning of non-standard automation systems
  • Familiarity with mechanical assembly, pneumatic systems, and basic PLC/servo systems
  • Proficient in SolidWorks, AutoCAD, or EPLAN
Job Responsibility
Job Responsibility
  • Act as technical anchor for the assembly line, bridging the gap between R&D designs and physical production
  • Create comprehensive electrical work instructions, BOMs, and self-inspection checklists based on 3D drawings and signal distribution tables
  • Independently develop 3D layout designs for electrical cabinets and plan intricate cable routing and bridges using SolidWorks, AutoCAD, or EPLAN
  • Set standard labor hours for electrical assembly to support manpower planning and cost calculations
  • Provide expert technical support on-floor, training production staff and external vendors on wiring standards, installation, and commissioning
  • Fulltime
Read More
Arrow Right