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Added just now
Junior Full Stack Engineer
Co-Intelligence Labs
Austin, TX
As a Junior Fullstack Engineer, you'll contribute to our next-generation healthcare recommendation platform while learning from experienced engineers. You'll work across the technology…
Added just now
Full Stack Engineer
Co-Intelligence Labs
Austin, TX
As a Fullstack Engineer, you'll own the complete technology stack of our next-generation healthcare recommendation platform. You'll build everything from elegant frontends to robust…
Added just now
Senior/Staff/Principal Software Engineer
Ease Health
New York City, NY
Senior/Staff/Principal Software Engineer - Ease Health
Added just now
Frontend Software Engineer
Ease Health
New York City, NY
Added 1 min ago
Founding Engineer - LLM
Aida
Palo Alto, CA
We are seeking a passionate Software Engineer with a focus on Large Language Models (LLM) to join our team in Palo Alto, CA. As a Founding Engineer, you will play a pivotal role in shaping…
Added 1 min ago
DN
Founding Senior Software Engineer
Double Nickel
Brooklyn, NY
- $190,000 to $220,000 USD / year
Added 1 min ago
DN
Founding Engineer
Double Nickel
Brooklyn, NY
- $160,000 to $200,000 USD / year
You'll be a founding engineer working directly with the CTO and CEO, owning core systems end to end. You won't be handed tickets. You'll help decide what to ship, why it matters, and how to…
Added 1 min ago
NI
Implementation Engineer
Niche Inc.
Bend, OR · Las Vegas, NV
- $70,000 to $80,000 USD / year
As a Implementation Engineer, you’ll be the bridge between our technology and our customers’ success. You’ll manage onboarding, troubleshoot integrations, and ensure seamless adoption of…
Added 1 min ago
Founding Robotics Perception Engineer
Greenlight Robotics
San Francisco, CA
We are looking for a Robotics Perception Engineer to build the perception stack of our product. Reporting directly to our Co-founder & CTO, you will write, review, and deploy software that…
Added 1 min ago
Founding Motion Planning & Prediction Engineer
Greenlight Robotics
San Francisco, CA
We are looking for a Machine Learning Engineer to build the prediction and planning models of our product. Reporting directly to our Co-founder & CTO, you will own the training, validation,…
Added 1 min ago
HA
Senior Software Engineer
HeyMilo AI
New York City, NY
- $160,000 to $250,000 USD / year
We're looking for a Senior Software Engineer (Core Platform & AI Insights) to optimize the quality of our insights and analysis, ensuring that our AI generates accurate, high-value hiring…
Added 1 min ago
HA
Full Stack Software Engineer
HeyMilo AI
New York City, NY
- $120,000 to $200,000 USD / year
We're looking for a Senior Full-Stack Engineer who thrives in a fast-paced, highly dynamic environment. This role is all about quickly building and iterating on features, and working…
Added 2 mins ago
Controls Engineer
Marble Technologies
Lincoln, NE · Omaha, NE
…processing industry. Marble is seeking a full-time Controls Engineer who is ready for a challenge and eager to design, implement, and support AI-driven automation solutions. As a part of…
Added 2 mins ago
MB
Sr. ML Engineer
Memory Bridge
Remote, United States
- IRR 800,000,000 to IRR 1,200,000,000 IRR / year
This is a rare opportunity to join our team as the founding ML engineer, where your code will directly shape how AI systems remember and learn. If you’re a strong programmer who has evolved…
Added 2 mins ago
MB
Sr. Backend Engineer
Memory Bridge
Remote, United States
- IRR 800,000,000 to IRR 1,200,000,000 IRR / year
Collaborate closely with the ML engineer on the hybrid retrieval system, providing backend support for vector search, keyword search, and graph queries
Added 2 mins ago
Sr. Applied ML Engineer
Memory Bridge
Remote, United States
This is a rare opportunity to join our team as the founding ML engineer, where your code will directly shape how AI systems remember and learn. If you’re a strong programmer who has evolved…
Added 2 mins ago
NC
Junior Software Engineer (QA & Automation)
Ngo Consulting Partners
Remote, United States
- $28 to $38 USD / hour
This role is ideal for an early-career engineer excited to work on AI and data-driven products. You’ll help ensure the accuracy, consistency, and reliability of our systems while learning…
Added 3 mins ago
Senior/ Staff Software Engineer, Platforms
Sagora
Boston, MA
Added 3 mins ago
AI Systems Engineer
Sagora
Boston, MA
We are hiring an AI Systems Engineer who blends strong systems instincts with enthusiasm for AI. This is not a role for someone who wishes AI would “go away”; we want engineers who lean…
Added 3 mins ago
Systems and Operations Intern
Sigma Growth Specialists
Remote, United States
…paperwork." We are looking for a systems thinker who wants to help us engineer a world-class employee experience. You will work at the intersection of Operations, CRM Architecture, and…
Added 3 mins ago
AI Engineer - Fintech Platform
Sonar Search
Remote, United States
Our client, an innovative fintech startup, is seeking an AI Engineer to build intelligent agents and LLM-powered features for their financial automation platform. Success in this position…
Added 4 mins ago
Principal Agentic AI Security Engineer
HPE
Spring, TX
The Agentic AI Engineer is responsible for designing, building, and operating production-grade agentic systems that combine foundation models, software services, enterprise data, tools, and…
Added 4 mins ago
WO
AI Manager
Well-Oiled Operations
Remote, United States
- $90,000 to $100,000 USD / year
We're looking for an AI Solutions Engineer to design and build practical AI-powered tools that solve real operational problems inside Well Oiled Operations (WOO) - dashboards, internal…
Added 4 mins ago
SA
Electrical Engineer - Subsea Motion Control & Power Electronics
Straffing AI
San Diego, CA
- $125,000 to $150,000 USD / year
We are seeking an experienced Electrical Engineer to join an innovative engineering team developing advanced electromechanical systems for demanding subsea applications. This is an…
Added 4 mins ago
SA
CTO (Co-founder)
Straffing AI
New York, NY
- $141,000 to $150,000 USD / year
Previous founder, co-founder, founding engineer, or early-stage startup experience

Spectrum Effect

[USA] Principal Software Engineer

Bellevue, WA, United States

Hybrid

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Job details

Workplace: Hybrid
Experience: Minimum of 7 years of Python, Go, Rust, C++, or similar related experience and 10+ years of general software development experience
Posting language: English
Posted: Sep 18, 2026

Original job description

Company Description Do you thrive in environments where you are empowered to make impactful decisions and bring clarity to complex problems? Do you want to be part of a fast-moving high-growth company? Come and join us at Spectrum Effect! Spectrum Effect’s mission is to solve the most challenging and costly problems in the wireless industry through innovation and AI-powered automation. Our team is passionate about creating disruptive technologies, developing solutions with engineering excellence, and delivering substantial value to our customers. Deployed by leading mobile operators across the globe, our Spectrum-NET software solution performs automated AI-driven analysis of radio access networks. Spectrum-NET is a cloud-native, horizontally scalable solution based on a Kubernetes-orchestrated microservices architecture. Our 60+ person team is located primarily in Seattle (U.S.) and Monterrey (Mexico), with team members enjoying ownership in our private company through stock options and competitive salaries. This is an amazing opportunity to join an emerging leader in the AI automation space and make a real impact on the mobile industry.

Job Description

We are seeking a Principal Software Engineer with a strong aptitude for designing, developing, and deploying high-performance software solutions while defining best practices and technical standards. The ideal candidate will excel in navigating ambiguity, driving cross-functional collaboration, and translating complex technical concepts or insights into thoughtful solutions.

We are looking for someone who can:

Solution Ownership: Lead the rapid design, development, and iteration of software solutions and features.
System Translation: Work with system engineers to translate complex technical RF requirements and deliver top-tier software solutions that are technically sound, feasible, and aligned with business objectives.
Comfort with Ambiguity: Thrive in a fast-paced startup environment with shifting priorities. Maintain a pragmatic, solutions-oriented outlook and balance speed versus quality trade-offs effectively. Bring structure and clarity when navigating situations with high uncertainty.
Technical Communication: Communicate complex software concepts effectively to both internal and external stakeholders, including executive audiences.
Mentoring: Provide technical guidance to software engineers, particularly in areas like improving engineering processes, ensuring software quality and security standards, and ensuring system reliability and performance.

Qualifications

Bachelor’s degree in Computer Engineering or equivalent
Minimum of 7 years of Python, Go, Rust, C++, or similar related experience and 10+ years of general software development experience
Experience designing and building real-time and near-real-time systems, including ML inference
Experience with distributed systems, databases, and messaging systems
Strong Linux knowledge with hands-on experience.
Strong knowledge of software architecture principles and ability to contribute to architectural discussions
Ability to independently own solutions from design through implementation and iteration
Comfortable working with ambiguity, shifting priorities, and speed-versus-quality & coverage trade-offs.
Strong judgment, decision-making, and problem-solving skills
Experience working in a leadership or senior engineering role
Excellent written and verbal communication skills, capable of engaging with both technical and non-technical stakeholders
Curiosity and willingness to learn domain-specific telecom and RF related technology.

Preferred Skills

Experience with technologies such as Kubernetes, Helm, Docker, Kafka, or NoSQL databases (e.g., MongoDB, InfluxDB)
Familiarity with data/ML techniques and libraries such as NumPy and SciPy is a plus.
Familiarity with modern front-end technologies and frameworks, including JavaScript/TypeScript, Angular, React, or Vue.js.
Experience working with modern deployment techniques and practices, such as CI/CD pipelines and deployment automation
Understanding of RAN (Radio Access Network) concepts, including cells, sites, controllers, and topologies

Additional Information Why Join Us

Dynamic Team: Collaborate with passionate experts driving real innovation in the telecom space
Career Growth: Work on high-impact problems with real ownership and visibility
Meaningful Work: Help shape the next generation of ML-driven network analytics
Attractive Benefits: Competitive salary, stock options, and a flexible work environment

Do you have the technical chops and product sense to help shape the future of wireless automation? Apply now - your next big opportunity starts here.

U.S. Person status is required for this position due to contractual obligations. This is a hybrid position. The candidate should be based in or willing to relocate to the Greater Seattle Area.

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