UNKNOWN

FEED

As a staff engineer, you'll play an instrumental role in designing and implementing complex systems within the team's domain, guiding your team's full stack development practices and collaborating with other senior engineering leaders to advance Betterment's technology and create high performance, reliability and exceptional developer experience. Our Commitment to Your Total Well-being: We offer a competitive suite of benefits, including medical, dental, and vision coverage; life and AD&D insurance; short- and long-term disability; infertility support and WPATH-aligned transgender health benefits; an Employee Assistance Program (EAP); transit benefits and FSA and HSA options.

YEAR

Betterment

Staff Engineer

ea_via_bold

Currently we have an immediate need to add an experienced: Software Applications Engineer Location: Chantilly, VA (on-site client environment) Clearance: TS/SCI with polygraph Compensation: Competitive, Excellent Benefits Only applicants with the active required security clearance and are U.S. Citizens will be reviewed. Desired: Experience developing responsive web applications using Angular, React, Vue.js, HTML5, CSS3, and JavaScript, and/or building backend services using Java, Python, Spring Boot, Node.js, Express, Ruby on Rails, and Golang.

Driven by technical excellence, Armison Tech provides top-tier cyber security services, consulting services, and technology solutions which strive to help organizations in both the public and private marketplace achieve success.
Founded in 2012, Armison Tech is a minority owned small business headquartered in Northern Virginia. Since its establishment, Armison Tech has served as a vehicle that allows for the most qualified and highly recommended consultants in their respective industries to offer their skills and insights.&nbsp;
Armison Tech&rsquo;s cost-effective and time-efficient services and solutions have earned the company a reputation of excellence. Our team of industry experts provide sophisticated consulting services which can be customized to fit the unique needs and requirements of a wide array of clientele.

Armison Tech

Software Applications Engineer

You'll be a part of the Platform Engineering team, which builds the infrastructure, shared services and self-service tools our engineers rely on, and runs the systems that collect, process and serve the ad data and creative scoring our customers depend on. For over a decade, we've powered smarter creative decisions for the world's biggest brands, including Google, Unilever, Pepsi, Bayer, Mondelez, Heineken, shipped category-defining products, and proven that creative is the single biggest driver of marketing performance.

CreativeX

Senior Software Engineer, Platform

Embody best practices and good work habits; mentor team members on engineering concepts such as unit testing, TDD, continuous integration, and linting. Experience with agentic systems in production, including multi-step tool use, session state, and evaluating a pipeline rather than a single call.

Bold Penguin Inc

Engineering Manager

linkup_via_bold

OTHER

You'll own our data systems end to end: CDC replication out of production MySQL, the pipelines and jobs that shape data in BigQuery, the Terraform-managed infrastructure underneath, and the Looker models on top. UJET leads the way in AI-powered contact center innovation, delivering a future-proof, cloud platform that redefines the customer experience with cutting-edge AI, true multimodality, and a mobile-first approach.

UJET

Data Engineer

greenhouse_via_bold

Our vision is to enable anyone to build the best payroll product for their end customers - powering payroll for small and medium businesses across a variety of industries, from vertical SaaS to fintech and neobanks to AI-native products. Gusto Agent & Partner Experiences is a platform that allows developers to embed payroll directly into their own software using our APIs and allows AI agents to act on payroll on a customer’s behalf.

Gusto, Inc.

Senior Staff Software Engineer, Gusto Agent & Partner Experiences (API)

While specific benefits vary, here are some of the ways we strive to take care of our eligible team members globally: Comprehensive health, life, and disability insurance | Commute subsidy | Employee stock ownership | Competitive retirement/pension plans | Generous vacation and personal days | Support for new parents through leave and family-care programs | Office food snacks | Mental Health and Wellbeing programs and support | Employee Resource Groups | Global Employee Assistance Program | Training and development programs | Volunteering and donation matching program. This position requires the incumbent to have a sufficient knowledge of English to have professional verbal and written exchanges in this language since the performance of the duties related to this position requires frequent and regular communication with colleagues and partners located worldwide and whose common language is English.

Unity Technologies SF

Senior Backend Engineer, Ads Platform (Offerwall)

sourcestack_via_bold

Low defects in owned areas — proactively monitors and improves the quality of the systems they own; that means incident-free quarters in code paths that move funds and clean reconciliation against vendor reports. You blend software engineering skills with infrastructure and operations expertise to keep critical systems running smoothly while enabling rapid product development.

Order.co

Senior Site Reliability Engineer

You communicate clearly in writing and conversation, translate technical complexity into business outcomes, and collaborate effectively across Product, Engineering, Operations, and other technical and non-technical partners. Design and build reliable, stateful services and workflows across checkout, order lifecycle management, fulfillment orchestration, and partner integrations, with a focus on correctness, data consistency, scalability, and explicit failure and recovery patterns.

Stitch Fix Inc

Lead Engineer, Order Management

With a focus on secure and highly scalable distributed services, you will leverage technology such as Kubernetes, ArgoCD, Github Actions, Tekton/TPAC, Helm, Bash, Python and whatever the future may hold to advance an automated and easy to use and maintain ecosystem to support Golang, Ruby on Rails, and Python services (as well as Kotlin and C for our Mobile and Embedded friends!). Motive serves nearly 100,000 customers - from Fortune 500 enterprises to small businesses - across a wide range of industries, including transportation and logistics, construction, energy, field service, manufacturing, agriculture, food and beverage, retail, and the public sector.

Motive Technologies Inc

Staff Platform Engineer

Since then, we've expanded to a full suite of products designed to help our clients turn their savings into long-term wealth, including: A Cash Account that, through our partner banks, offers one of the highest annual percentage yields on uninvested cash in the industry, while providing instant and secure access to your money with no account fees and a full suite of checking features. Multiple automated investing portfolios designed to unlock tax savings through sophisticated strategies like fixed income, tax-loss harvesting, and direct indexing-which we offer at industry-leading low costs and accessible minimums.

Wealthfront Corp

Software Engineer, Frontend

In this role, you will leverage a deep understanding of the codebase to independently implement high-quality solutions, translating business problems into technical solutions. A Software Engineer II at Home Chef is an experienced software developer who is proficient in the languages and frameworks commonly used at the company.

Home Chef

Software Engineer II

You'll put user data protection first by building and supporting scalable tools, utilities, and infrastructure that keep consumer data secure across platforms-including connected TVs, mobile apps, and web ecosystems. HBO and HBO Max, Paramount+, Pluto TV, CBS, CNN, CBS Sports, TNT Sports, Nickelodeon, Cartoon Network, MTV, Food Network, BET, HGTV, and Comedy Central.

Paramount Skydance Corp

Senior Software Engineer, Privacy

In doing this, the Lead Engineer will be required to translate complex functional specifications to detail technical designs regarding Test Case, Security, Testing Automation, User Interfaces (UI), application functionality, middleware technologies, API, deployment artifacts, artifact packaging, and application monitoring automation, logging, and performance metrics. The Lead Software Engineer is expected to have proven experience in building and delivering highly complex platform and strong technical background, and experience with modern technologies and leveraging best practices in the areas of open source tech solutions, and in managing software development and agile methodologies.

Cubesmart

Lead Software Engineer

[AW]-iCims

You'll work directly with the platform architect and other developers to bring deep, hands-on LLM-stack expertise: you've built these systems before, you know where they break, and you know what "good" looks like in production. You won't be maintaining someone else's pipeline — you'll be standing up the core AI infrastructure for a platform with millions of active users, and shaping the engineering practices around it as the team grows.

TMTG

Senior Backend Engineer, AI Platform

BreezyHR

Flexible Time Off: Whether its a longer vacation to explore new horizons, a series of short breaks for regular rejuvenation, or stepping away for a new level of mastery in a skillset - our "You-do-You" time off program caters to the diverse and evolving lifestyles of our team with a maximum of 6 weeks vacation. Our recent funding extension has raised our Series B funding round to nearly $50 million USD Join us in shaping the future of employee financial wellness and building services that address the immediate needs of todays employees.

ZayZoon Inc

AI Agent Evals: Experience building eval frameworks for LLM agents (e.g., correctness graders, LLM-as-judge, human-in-the-loop evals, benchmark dataset curation); familiarity with agentic frameworks (Claude API/Anthropic SDK, BrainTrust, LangChain, LangGraph, CrewAI, or similar); production monitoring for AI systems (behavioral drift detection, output sampling, shadow scoring); red-teaming or adversarial testing experience for AI models or agents; experience with RAG pipelines, including data chunking and pre-retrieval data quality gates. You will own the architecture and strategy for the evaluation frameworks, automation tools, and testing infrastructure that give ID.me engineering teams the confidence to ship quickly and safely across functional, end-to-end, LLM/eval, and security-focused testing practices, as well as the CI/CD quality gates the org depends on.

IDMe

Staff Software Engineer – Testing & Evals Frameworks

GreenHouseAPI

ID.me

Staff Software Engineer - Testing & Evals Frameworks

Senior Backend Engineer, AI Platform (Remote)

Second Sight Solutions, a subsidiary of Berkeley Research Group (BRG), is a health technology company, and our innovative technology reimagines how drug discount data is exchanged, establishing new connections and improving transparency for drug manufacturers and their customers. Together, they bring a diversity of real-world experience, data, and human and artificial intelligence, to economics, disputes, and investigations; corporate finance; and performance improvement services that address the most complex challenges facing organizations across the globe.

Ruby On Rails Developer Jobs in the United States

Staff Engineer Betterment

Software Applications Engineer Armison Tech

Senior Software Engineer, Platform CreativeX

Engineering Manager Bold Penguin Inc

Data Engineer UJET

Senior Staff Software Engineer, Gusto Agent & Partner Experiences (API) Gusto, Inc.

Senior Backend Engineer, Ads Platform (Offerwall) Unity Technologies SF

Senior Site Reliability Engineer Order.co

Lead Engineer, Order Management Stitch Fix Inc

Staff Platform Engineer Motive Technologies Inc

Software Engineer, Frontend Wealthfront Corp

Software Engineer II Home Chef

Senior Software Engineer, Privacy Paramount Skydance Corp

Lead Software Engineer Cubesmart

Senior Backend Engineer, AI Platform TMTG

Staff Engineer ZayZoon Inc

Staff Software Engineer – Testing & Evals Frameworks IDMe

Staff Software Engineer - Testing & Evals Frameworks ID.me

Senior Backend Engineer, AI Platform (Remote) TMTG

Software Engineering Manager Berkeley Research Group

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