Senior Software Engineer Backend

Onebrief is collaboration and AI-powered workflow software designed specifically for military staffs. By transforming this work Onebrief makes the staff as a whole superhuman - meaning faster smarter and more efficient.

We take ownership seek excellence and play to win with the seriousness and camaraderie of an Olympic team. Onebrief operates as an all-remote company though many of our employees work alongside our customers at military commands around the world.

Founded in 2019 by a group of experienced planners today Onebrief’s team spans veterans from all forces and global organizations and technologists from leading-edge software companies. We’ve raised $320m+ from top-tier investors including Battery Ventures General Catalyst Sapphire Ventures Insight Partners and Human Capital and today Onebrief is valued at $2.15B. With this continued growth Onebrief is able to make an impact where it matters most.

We’re hiring Senior Backend Engineers to help design build and operate the core systems of our platform. This is a hands-on engineering role with a focus on performance reliability and operational excellence. Our backend is built on modern languages frameworks and cloud-native infrastructure. We value strong problem-solving skills and sound engineering judgment over mastery of any one technology.

You’ll work on high-impact systems including (but not limited to) our core backend services database monitoring and metrics pipelines. Expect to tackle challenges in scaling performance data modeling fault tolerance observability and disaster recovery. You’ll help shape architecture and contribute to operational and long term strategy.

If you enjoy thinking about trade-offs working across the stack and solving problems that keep production systems healthy under real-world conditions you’ll thrive here.

• Design build and maintain backend services that power mission-critical platform functions within your team’s scope

• Optimize data models and system performance to improve scalability reliability and maintainability

• Work across APIs databases and deployment systems to deliver cohesive production-ready solutions

• Diagnose and resolve performance scalability and reliability issues in production

• Contribute to architecture discussions and collaborate on high-availability system design

• Implement and improve monitoring alerting and operational practices

• Balance long-term code quality with pragmatic delivery to meet team goals
  

• 6+ years of experience in backend software development with strong proficiency in one or more backend languages (e.g. Node.js Python Java Go)

• Deep understanding of scalable API design (REST GraphQL gRPC) data modeling distributed systems and performance/reliability best practices

• Hands-on experience with relational and/or non-relational databases containerization and cloud infrastructure (Docker Kubernetes AWS/GCP/Azure)

• Experience owning and delivering complex well-scoped backend initiatives within a team

• Strong architectural judgment within team boundaries and ability to contribute meaningfully to system design discussions

• Ability to recognize bottlenecks and adjust course when needed; willingness to escalate when complexity expands significantly beyond team scope

• Experience collaborating across teams (i.e. product frontend and DevOps) to deliver high-quality end-to-end solutions

• Experience operating in moderate ambiguity maintaining steady execution and clear communication across PRs and design discussions

• Track record of delivering complex projects in fast-paced or demanding environments
  

• Background in mission-critical domains

• Experience with CI/CD pipelines automated testing and deployment workflows

• Prior experience driving architecture and system design decisions for complex high-scale applications

• Knowledge of event-driven and service-oriented architectures (Kafka Pub/Sub microservices)

• Familiarity with observability stacks (logging metrics tracing) and incident response practices

• Experience with data sharding and logical data partitioning strategies

• Experience with message queues streaming platforms or event buses

• Experience working with security/compliance requirements (e.g. SOC2 FedRAMP HIPAA)

Notice to Third Party Recruitment Agencies
Please note that Onebrief does not accept unsolicited resumes from recruiters or employment agencies. In the absence of an executed Recruitment Services Agreement there will be no obligation to any referral compensation or recruiter fee. In the event a recruiter or agency submits a resume or candidate without an agreement Onebrief explicitly reserves the right to pursue and hire those candidate(s) without any financial obligation to the recruiter or agency. Any unsolicited resumes including those submitted to hiring managers shall be deemed the property of Onebrief.

What We Do

Before Onebrief military planning and collaboration was slow inefficient and resource-intensive. Building slides with no version control as partners collaborated would have staffs spend weeks or months on a single product or document. With Onebrief these workflows are now simple and collaboration between large commands is efficient. Staff optimization is the key to building a more resilient more effective military. Today Onebrief users report at least 2x time savings - and growing. Onebrief is a first of its kind software for the military. While many others have tried to build a solution for this problem Onebrief’s “card” structure for reusing data and enabling real time updates is what makes this possible. Core features and attributes that make this platform powerful include: - Global Collaboration - Real-Time Updates - AI Automation - Interoperability + Integrations - Deployable across Secret and Top Secret Networks Mission Driven Onebrief is composed of professionals from backgrounds of all kinds - spanning veterans across forces and organizations and technologists from leading-edge software giants. Onebrief is more than just a software platform; it's a mission-driven company dedicated to improving the efficiency and effectiveness of military planning. By joining the team you'll contribute to solutions that directly support national security and the work of service members. Your work directly addresses critical challenges that military planners and operators face daily. Every line of code and every design decision contributes to real-world outcomes. The software was designed and built by a team of experienced planners - lending a nuanced perspective on the challenges our partners face. Our team embeds alongside users - from the Pentagon to the Indo-Pacific - to build a platform that meets their unique needs. Rapid Strategic Growth Our users love the platform and growth is scaling most recently reporting operational usage growth at a 19600% annualized rate. Stronger utilization is underway and we’re at an exciting period of advancement. As a rapidly growing organization you'll directly influence its direction and long-term success. Over the past year we’ve seen exciting growth metrics: First our headcount has grown 150% YoY to keep pace with our product advancement and customer growth. Our funding has skyrocketed most recently raising our Series C led by top-tier venture investors who have deep expertise in defense tech.

Why Work With Us

Impactful Transformation At Onebrief we believe optimizing the military staff is the most impactful thing - on a per-dollar basis - in defense tech right now. This has the potential to save the department of defense billions of dollars and save users countless hours. It’s a longstanding problem that we’re uniquely positioned to solve.

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