Nexufend is revolutionizing enterprise network security with a groundbreaking distributed firewall that provides process-level visibility. Founded by entrepreneurs who built Safing (4th fastest-growing open-source startup in 2022), we're scaling our B2B security platform.
We're seeking an experienced software systems engineer to build and scale the backend services of our network security platform, ranging from complex databases to scalable log mangement and data optimization. You'll primarily work with Golang, Protobuf, Grafana, Loki and PostgreSQL. Working directly with our CTO, you'll have significant influence in shaping the whole platform and will redefine how IT administrators can bring security to their networks.
Tasks
Golang Backend / OS Integration Development (85%)
:
Build backend services and features in Golang
Interact with PosgreSQL and Loki data sources
Design database structures and whole backend services
Scale services and data management
If skilled: Work on macOS, iOS, Android agents and system/kernel integration
Supportive Tasks (15%)
:
Use your other skills to help out colleagues or fill needs until these roles are properly filled
Manage and scale infrastructure
Build and maintain CI/CD pipelines
General Responsibilities
:
Work independently and self-motivated on assigned features
Engage proactively in the creative process with forward-thinking solutions
Participate in code reviews and technical discussions
Collaborate with fronted developers on API design and integration
Write clean, maintainable, well-documented code
Contribute to architecture design decisions
Requirements Must Have
:
Proficient in Golang
Deep knowledge of networking, network security and firewall technology
Experience with PostgreSQL, Protobuf, HTTP2
Familiarity with log management, Grafana, especially Loki
Modern development workflow using Git, CI/CD, GitHub, ...
Ability to work independently and self-motivated
Forward-thinking approach and engagement in creative processes
Strong problem-solving skills
Excellent English communication skills (written and verbal)
Live within 5 hours of Vienna Intl. Airport (door to door scheduled travel time)
Willingness to come to the office (or similar location) up to once per month (likely only once per quarter)
On-site is also possible, even temporarily, but mandatory for the first two weeks.
Nice to Have
:
Low Level Operating System Development Knowledge
macOS and iOS network extensions experience
Android network integration experience
Experience managing and scaling Linux servers, PostgrSQL, Loki and containers
Background with B2B SaaS products
Experience with Docker and containerized applications
Contributions to open-source projects
Benefits
Competitive salary with equity options
Flexible remote work within the EU
Shape the product technology from the ground up
Significant creative freedom and ownership over UI/UX decisions
Work with experienced founding team with proven track record
Modern tech stack with cutting-edge technologies
Professional development budget
Collaborative, innovation-driven culture
Direct impact on product development and company growth
Be part of revolutionizing network security
Work on cutting-edge cybersecurity technology
Join at early stage with significant growth potential
Help businesses worldwide protect critical infrastructure
European-based company aligned with EU data protection standards
Ready to revolutionize network security? We'd love to hear from you!
Apply with
:
Your CV/resume
•
Link to code examples, eg. pet projects, libraries, open source production code
Brief note on why you're excited about this role (or a recipe for hawaii toast)
We're looking to fill this role by Q1 2026 to support our MVP deployment.
Nexufend is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.