We are looking for an analytical, results-driven back-end software engineer, who will work with team members to troubleshoot and improve current back-end applications and processes. The Back-end Engineer will formulate more efficient processes, solve problems, and create a more seamless experience for users. You should have excellent coding and communication skills.
To succeed as a backend engineer, you should be focused on creating impact, and the best end-user experience. You should be an expert in programming, multiply efficiency through AI tools usage, collaborative, and motivated.
Responsibilities
Design and implement high-complexity projects from scoping to production.
Apply a data-driven approach to a wide variety of signals to identify, understand, and scope emerging fraud trends and uncover root causes.
Participate in the full development cycle: design, develop, QA, experiment, analyze, and deploy.
Analyze data and processes to troubleshoot problems and identify areas for improvement.
Collaborating with the front-end engineers and other team members to deliver functionality to enhance the user experience.
Developing ideas for new products, or features by monitoring industry developments and executing quick proof of concepts.
Requirements
3-5 years of experience in a post-academic cloud-based software environment
Experience in a peak performance organization, preferably a tech start-up
Strong Computer Science fundamentals in object-oriented design, data structures, distributed systems, algorithm design, problem solving and complexity analysis.
Fluency or understanding of specific languages, such as Typescript, NodeJS, or Python, and operating systems.
Knowledge of AI LLMs, prompt engineering and Agentic AI frameworks would be a huge plus.
Strong understanding of the development cycle and programming techniques and tools.
Conduct code tests and optimize performance (Unittests and automation testing).
Experience in building high-performing APIs.
Experience with SQL/NoSQL databases (MySQL, Postgres, Elasticsearch, Cassandra etc.)
Experience with Messaging queues (SQS, RabbitMQ, similar)
Quick learner and fast to adapt to new changing dynamics.
Understanding of infrastructure & application deployment models (Kubernetes, Docker, AWS/GCP/Azure)
Caching strategies (server/client) and tools (Memcache, Redis, Varnish, CloudFront, Akamai)
Our Tech Stack
NodeJS
Python
Rust
PostgreSQL
Elasticsearch
Scylla/Cassandra
Why Bolster?
Bolster builds a next-generation AI-powered fraud prevention and brand protection platform designed to detect and eliminate phishing, impersonation, and online scams at internet scale. Our platform protects enterprises from external digital threats across websites, social media, mobile apps, messaging platforms, and the dark web—helping organizations safeguard their brands and customers from rapidly evolving cyberattacks.
Bolster is trusted by leading global enterprises and Fortune 500 companies that rely on our technology to detect and automatically take down phishing and impersonation attacks in real time.
Our team brings deep cybersecurity expertise with decades of combined experience across leading technology and security organizations. Bolster is backed by leading investors including M12 (Microsoft’s venture fund), Thomvest Ventures, and Crosslink Capital, helping accelerate innovation in AI-driven threat protection.
Our AI and machine learning technology uses deep learning, computer vision, natural language processing, and large-scale threat intelligence to detect malicious infrastructure and automate takedowns with high accuracy and speed.
We also extend our technology to the broader community through CheckPhish (
https://checkphish.ai) — a free phishing and scam detection tool used by millions of security researchers, organizations, and consumers worldwide. The platform helps identify fraudulent websites and contributes valuable threat intelligence to strengthen Bolster’s detection models.
What we offer:
-Excellent medical, dental, and vision insurance
-Flexible time off + paid holidays.
-Equity + 401(k) plan
