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software engineering intern summer 2027

Circleback

<div>
 We&rsquo;re looking for a software engineering intern who takes pride in their craft to join us in San Francisco to build great software together in summer 2027.
 
 
 
 What You&rsquo;ll Do
 
 
 
 <ul>
 <li>
 Build new features end-to-end, everything from database models to API endpoints and UI components for our web (React), desktop (Electron), and mobile apps (React Native)
 </li>
 <li>
 Improve product foundations (AI-powered outcomes, search, Circleback Assistant, transcription, on-device recording/streaming, app and API performance, automations, and other new initiatives)
 </li>
 <li>
 Apply learnings from customer conversations into product improvements
 
 
 </li>
 </ul>
 
 Who You Are
 
 
 
 You have experience doing the above in previous roles or side projects, take pride in your work, value urgency and ownership, and find building exceptional software fun. Although a strong product sense is not required, we do expect high attention to detail and curiosity about how great products work.
</div>

Software Engineering Intern (Summer 2027)

Tamarind Bio

<div><h1 class="jobSectionHeader">About Tamarind Bio</h1>
We enable any scientist to access AI-powered drug discovery. Thousands of scientists from large pharma companies, top biotechs, and academic institutions use Tamarind to design protein drugs, improve industrial enzymes, and create cutting edge molecules that weren&rsquo;t feasible until now.
New AI models are quickly eclipsing physics-based tools in computational drug discovery. Scientists often struggle to fine-tune, deploy, and scale these models, leaving breakthroughs on the table. Tamarind provides a simple interface to the vast array of tools being released daily.
Staff Software Engineer / Technical Lead
We're hiring a Staff Software Engineer to provide technical leadership across our engineering team as we continue to scale the platform behind Tamarind.
Today, our engineering team consists primarily of early and mid-career engineers. As the complexity of our systems and customer requirements continues to grow, we're looking for someone who can help guide technical decision-making, mentor engineers, and drive architectural discussions across the organization.
This is not an engineering management role.
We're looking for a hands-on technical leader who enjoys writing code, reviewing designs, solving difficult engineering problems, and helping other engineers grow. You'll work closely with the CTO to shape technical direction while remaining deeply involved in execution.
The role spans architecture, infrastructure, product development, code reviews, technical mentorship, and engineering best practices.
What You'll Do<ul><li>
Partner with the CTO on architecture, technical planning, and major engineering initiatives</li><li>
Provide technical guidance across a team of 7-8 engineers</li><li>
Lead design reviews and architectural discussions</li><li>
Help engineers navigate complex technical challenges</li><li>
Contribute directly to the codebase across infrastructure, backend services, APIs, and product development</li><li>
Review code and provide feedback on implementation approaches</li><li>
Identify opportunities to improve reliability, scalability, performance, and developer productivity</li><li>
Support technical decision-making across new products and platform capabilities</li><li>
Work closely with customers and internal stakeholders to understand requirements and translate them into practical solutions</li><li>
Help establish engineering standards as the team continues to grow</li></ul>
Week in the Life<ul><li>
Collaborate with the CTO on technical priorities and architectural decisions</li><li>
Review designs and provide guidance on implementation approaches</li><li>
Build and operate services across infrastructure, ML systems, APIs, and customer-facing applications</li><li>
Participate in code reviews and technical discussions</li><li>
Help unblock engineers working through difficult technical problems</li><li>
Work directly with customers to understand requirements and gather feedback</li><li>
Balance hands-on engineering work with technical leadership responsibilities</li></ul>
Ideal Qualifications<ul><li>
7+ years of software engineering experience</li><li>
Experience serving as a senior technical contributor, staff engineer, principal engineer, or technical lead</li><li>
Strong software architecture and distributed systems experience</li><li>
Experience building and operating production infrastructure and cloud services</li><li>
AWS experience (EC2, S3, DynamoDB, Docker, etc.)</li><li>
Ability to mentor engineers and provide technical guidance across multiple projects</li><li>
Strong communication skills and sound engineering judgment</li><li>
Comfort operating in an early-stage startup environment</li><li>
Willingness to work onsite in San Francisco</li></ul>
Technology
Our technology sits at the intersection of DevOps, MLOps, and Computational Biology. We support workloads ranging from large-scale ML inference and model deployment to workflow orchestration across research, infrastructure, and scientific computing environments.
The role requires someone who enjoys moving between architecture, implementation, operations, and mentorship while helping a growing engineering team tackle increasingly complex technical challenges.
Compensation Range: $150K - $250K</div>

Staff Software Engineer / Technical Lead

SERVAL

<div><h1 class="jobSectionHeader">Who We Are</h1>
Serval is an AI-native automation platform transforming how enterprises operate. We build intelligent agents that understand real-world workflows and execute them end-to-end &mdash; replacing manual processes and rigid legacy systems with adaptive, learning software. Founded in early 2024, Serval is already trusted by companies like Fox, Notion, Perplexity, Vercel, and Brex to automate high-volume, high-friction operational work across their organizations. 
 
At the core of Serval is an agentic AI platform that turns natural language into production-grade workflows. Our agents don&rsquo;t just respond to requests &mdash; they reason, take action across systems, and continuously improve with usage. What began with operational use cases has quickly evolved into a horizontal AI automation layer used across IT, HR, Finance, Security, Legal, and Engineering. 
 
Our mission is to eliminate repetitive, manual work across the enterprise and give teams leverage through intelligent automation. Long term, we&rsquo;re building the universal AI operations layer &mdash; a system of agents that sits across business functions and runs the workflows that keep modern companies moving. 
 
We&rsquo;re backed by leading investors including Sequoia Capital, Redpoint Ventures, Meritech, First Round, General Catalyst, Elad Gil, and others.
<h2 class="jobSectionHeader">Role Overview</h2>
As Application Security Lead, you'll build and scale the foundations of Serval's product and application security program. You will set the strategy and drive execution for secure software development, vulnerability management, threat modeling, and security architecture across our platform and the agentic systems our customers trust us to run inside their most sensitive environments.
You'll be a hands-on leader with deep technical credibility and strong engineering instincts. You will build and mentor a team, partner closely with Engineering and Product, and ensure that security is designed into the systems that power Serval from the first line of code rather than bolted on later.<h2 class="jobSectionHeader">
What You'll Do</h2><ul><li>
Design, implement, and operate Serval's application security program, including secure SDLC practices, threat modeling, secure design review, code review, and remediation of vulnerabilities across our services, agent platform, integrations, and customer-facing surfaces.</li><li>
Build, lead, and directly mentor a team spanning product security, secure software development, and vulnerability management, hiring and scaling these functions deliberately and proportionately as Serval's platform and customer footprint grow.</li><li>
Establish world-class engineering rigor through secure coding standards, paved-path libraries and frameworks, security design patterns that scale security expertise across the engineering organization.</li><li>
Improve security coverage and signal quality by building and tuning the automated tooling that catches issues early (SAST, DAST, SCA, secrets scanning, dependency and supply-chain controls, and CI/CD security gates) and by partnering with engineering to make findings reliable, actionable, and low-friction to fix.</li><li>
Own the vulnerability lifecycle end-to-end: intake from internal testing, researchers, and bug bounty; triage and severity assessment; SLAs and remediation tracking; and coordinated disclosure.</li><li>
Partner deeply across Engineering, Product, and Infrastructure to embed security into Serval's systems by design, driving strong authentication and authorization, tenant isolation, data protection, secrets management, and the security of the agentic, tool-using workflows at the heart of the platform.</li><li>
Build a security program capable of withstanding sophisticated adversaries, including by tackling the novel application-security challenges of agentic AI (prompt injection, unsafe tool use, data exfiltration, and abuse of autonomous actions) and by using Serval's own agents to solve frontier security problems.</li></ul><h2 class="jobSectionHeader">
What You'll Need</h2><ul><li>
Have 10+ years in cybersecurity with deep expertise in application security, secure software development, and vulnerability management.</li><li>
Have deep experience building and leading application/product security, secure-SDLC, and vulnerability-management functions.</li><li>
Have stellar leadership skills and a demonstrated history of driving durable, continuous improvements to programs, processes, and people.</li><li>
Have strong software engineering fundamentals and can read, write, and review production code, partnering with engineers as a peer rather than a gatekeeper.</li><li>
Have exceptional written and verbal communication skills, can remain calm under pressure, and can effectively influence engineering and product decisions across a diverse gamut of teams, expertise, and seniority.</li><li>
Have deep expertise in modern application security tooling and primitives (SAST, DAST, SCA, secrets detection, fuzzing, software supply-chain security) and in secure cloud-native and distributed-systems architecture.</li><li>
Understand modern adversary tradecraft (TTPs) and how application-layer weaknesses are exploited, and have demonstrated experience translating that into practical secure-design guidance and prioritized remediation.</li><li>
Are mission-oriented, have unimpeachable integrity, and are passionate about building secure software in a highly complex, fast-paced environment. Bonus points if you're excited about the security challenges unique to AI agents.</li></ul><h2 class="jobSectionHeader">
What We Offer</h2><ul><li>
Impact: Be a key player in shaping the success of our product and company.</li><li>
Growth: Build a fundamentally new AI product offering with the support of our experienced team and investors. Grow rapidly with the company.</li><li>
Culture: Join a culture that values innovation, ownership, accountability, and fun.</li></ul>
Compensation Range: $200K - $325K</div>

Security Engineer, Application Security

SB Energy

<div>
 Do you want to work with high caliber professionals in a dynamic and growing company? Are you entrepreneurial, hard-working, and collegial? Join us at SB Energy, a leading company backed by SoftBank and Ares pairing cutting-edge innovation with best-in-class execution. Our Mission is to provide reliable, affordable energy at scale to support America&rsquo;s growing energy demands.
 
 
 Headquartered in Redwood City, CA, SB Energy develops, builds, owns &amp; operates some of the largest and most technically advanced energy and data center infrastructure projects in the United States. Since launching in 2019, the company has rapidly grown into a top-tier integrated platform with over 3 gigawatts (GW) in operation and a multi-GW pipeline of energy and data center infrastructure nationwide. SB Energy also utilizes its strong culture of innovation to identify and incorporate new technology into our projects, including our AI-based digital platform, to deliver energy infrastructure that is local, reliable, and matched to load. We are building the energy and technology future&mdash;today.
 
 
 Come join us in accelerating the energy transition to cleaner, more sustainable sources of power!
 
 
 
 Summer Internships at SB Energy!
 
 
 
 Are you looking for an internship to jumpstart your career? If so, you have come to the right place! SB Energy has exciting internship opportunities for MBA candidates and recent college graduates interested in gaining hands-on experience at a fast-paced and innovative infrastructure company. Backed by SoftBank Group, SB Energy is a fully integrated U.S. digital infrastructure and energy platform focused on the development, construction, and operation of energy and digital infrastructure assets. The company brings deep expertise across project development, construction, engineering, supply chain, financing, power marketing, and asset management. SBE&rsquo;s mission is to deliver reliable and secure data center and power infrastructure to support America&rsquo;s future. Our internships have a specific focus, but often get broader exposure to SB Energy's business, gaining insight into different areas of the company and the renewable energy and digital infrastructure industries.
 
 
 
 Benefits Of a SB Energy Internship
 
 
 
 <ul>
 <li>
 Apply skills and knowledge learned in the classroom to on-the-job experiences
 </li>
 <li>
 Comprehensive, value-added project(s)
 </li>
 <li>
 Work in teams and with cross-functional colleagues in a professional environment
 </li>
 <li>
 Develop technical skills specific to your major
 </li>
 <li>
 Gain opportunities for professional development by building relationships and learning from industry professionals in a live business environment
 </li>
 <li>
 Final project summary presentation to the team
 
 
 </li>
 </ul>
 This internship will help you acquire finance, analytical, and execution skills by participating in key Capital Markets initiatives and live projects that impact SB Energy&rsquo;s financing activities. You will gain broad experience in infrastructure finance and should be prepared to enter a fast-paced, collaborative work environment.
 
 
 
 Responsibilities
 
 
 
 <ul>
 <li>
 Support on active financing transactions
 </li>
 <li>
 Help manage due diligence workstreams
 </li>
 <li>
 Support the preparation of internal approval materials
 </li>
 <li>
 Assist with financial modeling and analysis
 </li>
 <li>
 Coordinate with cross-functional teams across the company for data validation
 
 
 </li>
 </ul>
 
 Qualifications/Requirements
 
 
 
 <ul>
 <li>
 MBA candidates or recently graduated from a college or university with a degree in finance, economics, business, engineering, mathematics, or a related field
 </li>
 <li>
 Strong interest in energy, digital infrastructure, and finance
 </li>
 <li>
 Strong Excel skills required. Financial modeling experience preferred
 </li>
 <li>
 High attention to detail and ability to produce accurate work under tight timelines
 </li>
 <li>
 Ownership mentality, intellectual curiosity, and willingness to ask questions
 </li>
 <li>
 Strong verbal, written, interpersonal and communication skills
 </li>
 <li>
 Demonstrated ability to work in a team environment
 
 
 </li>
 </ul>
 
 Location:
 
 Headquarters in Redwood City, CA, or Denver, CO preferred. We have a hybrid office setup.
 
 
 Hourly pay: $25-$30 per hour
 
 
 At SB Energy, the success of our projects is driven by a desire to see our projects benefit as many people as possible. We work to serve local communities through volunteering, fundraising, and much more. For example, we&rsquo;re proud to support access and opportunity in engineering and clean energy through impactful mentorship programs and workforce training. When you join SB Energy, you can become a part of these efforts, collaborating with team members who share a vision of building a better future now!
 
 
 SB Energy is built on a foundation of collaboration and inclusion. We are proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, creed, gender, national origin, age, disability, veteran status, marital status, pregnancy, sex, gender expression or identity, sexual orientation, citizenship, or any other legally protected class.
 
 
 To learn more about us, visit www.sbenergy.com.
 
 
</div>

Capital Markets Intern

Kreyco

<div>
 Kreyco (formerly known as Language Learning Network) is a nationwide organization that specializes in preK-12 education. We support students of all kinds by building strong partnerships between schools and teachers. As we continue to grow, we are looking to connect with passionate, qualified, and dedicated teachers who may be interested in joining our team! We ensure that all of its teachers have everything that they need to be successful in the classroom. This includes providing a comprehensive curriculum, coaching and mentorship, and professional development at no cost.
 
 
 We have an
 
 on-site, 6th grade Math
 
 teaching opportunity available for the 2026-2027 school year. Payment varies and depends on your teaching project, ranging from $400 to $1,100 weekly. Our payment structure also includes holidays and school breaks.
 
 
 Kreyco teachers are qualified, passionate, and dedicated. Our teachers may come from diverse backgrounds and have work experience in a wide range of careers, but they all share a common goal: having a positive impact on student learning, growth, and development. We welcome teachers with or without certification and assist them in obtaining certification while they teach!
 
 
 
 Job Summary
 
 
 
 <ul>
 <li>
 Job location: in person
 </li>
 <li>
 Schedule: M-F, daytime teaching hours only, no night or weekend classes
 </li>
 <li>
 Employment type: 1099 independent contractor
 
 
 </li>
 </ul>
 You can learn more about Kreyco and what it is like to work with us by following this link to watch a short video:
 
 
 Kreyco is hiring!
 
 
 If what we have shared resonates with you, Kreyco may be your new professional home. We look forward to hearing from you soon!
 
 
 
 Requirements
 
 
 
 <ul>
 <li>
 Bachelor's degree
 </li>
 <li>
 Reside in the US and within commutable distance to school
 </li>
 <li>
 Authorized to work in the United States
 </li>
 <li>
 Ability to commute
 </li>
 <li>
 Complete background check
 
 
 </li>
 </ul>
 
 Benefits
 
 
 
 <ul>
 <li>
 Professional development
 </li>
 <li>
 Individualized coaching
 </li>
 </ul>
</div>

K-12 Math Teacher- Middle School

David Joseph & Company

<div><h2 class="jobSectionHeader">Founding Engineer &mdash; Confidential (AI Startup, YC/a16z-Backed)</h2>
Location: San Francisco, CA (Onsite, 5 days/week) 
Compensation: $180,000 &ndash; $225,000 base + 1.0% &ndash; 1.5% equity 
Visa Sponsorship: Available &mdash; visa transfers supported | Relocation support available 
Employment Type: Full-Time<h3 class="jobSectionHeader">
About the Company</h3>
A well-funded AI startup building a new paradigm for software creation &mdash; using AI agents to autonomously create and operate specialized software products at scale. Founded in 2026, the company has raised $5.5M from a16z and other top-tier investors and is building out its founding engineering team of 5&ndash;7 engineers. The founding team has previously scaled companies to $20M ARR.<h3 class="jobSectionHeader">
The Role</h3>
This is a founding engineering role for a generalist full-stack engineer who loves building from zero. You will ship micro apps weekly to real users, encode your processes into increasingly automated workflows, and run rapid experiments with the founding team. All engineers report directly to the founder and CEO.<h3 class="jobSectionHeader">
What You'll Own</h3><ul><li>
Build and ship micro apps every week with real users, encoding your processes into increasingly automated workflows</li><li>
Work in close collaboration with the founding team</li><li>
Run rapid experiments and decisively double down on what works while cutting what doesn't</li></ul>
Tech stack: Full-stack, AI &mdash; Python, JavaScript, Kotlin, Go (flexible on language)<h3 class="jobSectionHeader">
Requirements</h3><ul><li>
1&ndash;5 years of software engineering experience building AI-driven products</li><li>
Experience shipping products or features from ideation to real users with significant traction</li><li>
Proficiency in agentic development &mdash; designing and building orchestration pipelines across multiple agents, tools, and services</li><li>
Full-stack proficiency with a backend focus</li><li>
Active user of modern AI tooling (e.g. Claude Code, Cursor, or similar)</li><li>
At least one clear signal of excellence &mdash; hackathon wins, side projects with significant traction, impressive fellowships, YC founder background, etc.</li><li>
Bachelor's degree in Computer Science or a related technical field</li><li>
Must be based in or willing to relocate to San Francisco</li></ul><h3 class="jobSectionHeader">
Preferred</h3><ul><li>
Previous founder or early-stage startup experience &mdash; YC or a16z alum backgrounds a strong plus</li><li>
Degree from a top-tier university (Berkeley, Stanford, CMU, or equivalent)</li></ul><h3 class="jobSectionHeader">
This Role Is NOT For</h3><ul><li>
Pretraining or fine-tuning ML researchers &mdash; this is applied agentic engineering, not model training</li><li>
Pure Big Tech careers with no side project, startup, or scrappy chapter</li><li>
Candidates with a pattern of short tenures across multiple companies</li></ul><h3 class="jobSectionHeader">
Interview Process</h3><ul><li>
Application review</li><li>
Intro screen (45 min) &mdash; technical depth, past projects, judgment, and founder fit</li><li>
Pair coding session (60 min) &mdash; live coding, no AI tools; CS fundamentals and algorithmic reasoning</li><li>
Onsite (~4 hours) &mdash; agentic coding session, system design, and behavioral/founder-fit conversation</li><li>
Offer</li></ul><h3 class="jobSectionHeader">
Logistics</h3><ul><li>
Role is fully onsite in San Francisco (SoMa) &mdash; 5 days/week</li><li>
Relocation support available</li><li>
Visa sponsorship available</li></ul>
Shortlisted candidates will be contacted by David Joseph &amp; Co., the recruiting partner managing this search.</div>

Founding Engineer — Confidential

Google

<div>Applicants in San Francisco: Qualified applications with arrest or conviction records will be considered for employment in accordance with the San Francisco Fair Chance Ordinance for Employers and the California Fair Chance Act. 
Note: By applying to this position you will have an opportunity to share your preferred working location from the following: San Francisco, CA, USA; Sunnyvale, CA, USA.<h3 class="jobSectionHeader">
Minimum qualifications:</h3><ul>
<li>Bachelor's degree or equivalent practical experience. 
</li>
<li>8 years of experience in software development. 
</li>
<li>5 years of experience testing, and launching software products. 
</li>
<li>5 years of experience with full stack development, across back-end such as Java, Python, Golang, or C++ codebases, and front-end experience including JavaScript or TypeScript, HTML, CSS or equivalent.</li>
<li>Experience integrating generative AI tools or LLM interfaces into workflows.</li>
<li>Experience in software engineering, generative AI agent, and cross-functional collaboration.</li></ul> 
<h3 class="jobSectionHeader">
Preferred qualifications:</h3><ul>
<li>Master&rsquo;s degree or PhD in Engineering, Computer Science, or a related technical field. 
</li>
<li>8 years of experience with data structures/algorithms.</li>
<li>3 years of experience in a technical leadership role leading project teams and setting technical direction. 
</li>
<li>3 years of experience working in a complex, matrixed organization involving cross-functional, or cross-business projects.</li>
<li>Experience with data engineering/large data set transformation and curation.</li>
<li>Experience with C++.</li>
</ul><div><h2 class="jobSectionHeader">About the job</h2>
Google's software engineers develop the next-generation technologies that change how billions of users connect, explore, and interact with information and one another. Our products need to handle information at massive scale, and extend well beyond web search. We're looking for engineers who bring fresh ideas from all areas, including information retrieval, distributed computing, large-scale system design, networking and data storage, security, artificial intelligence, natural language processing, UI design and mobile; the list goes on and is growing every day. As a software engineer, you will work on a specific project critical to Google&rsquo;s needs with opportunities to switch teams and projects as you and our fast-paced business grow and evolve. We need our engineers to be versatile, display leadership qualities and be enthusiastic to take on new problems across the full-stack as we continue to push technology forward.

The Cloud Optimize team provides cost and performance optimization to Google Cloud Platform (GCP) customers. To do this we rely on a unique set of data and pipelines from other Cloud Products across GCP. You will help lead the efforts to envision these datasets, join with existing datasets, and provide the data to all first-party and third-party agents who need them. 
Optimization spans cost, performance, and capacity for projects and applications developed on GCP. Our outlook is to help developers autonomously optimize their applications for cost, performance, and capacity. We do this by developing agent skills and tooling for use with Gemini models.
Google Cloud accelerates every organization&rsquo;s ability to digitally transform its business and industry. We deliver enterprise-grade solutions that leverage Google&rsquo;s cutting-edge technology, and tools that help developers build more sustainably. Customers in more than 200 countries and territories turn to Google Cloud as their trusted partner to enable growth and solve their most critical business problems.
Individual pay is determined by factors including job-related skills, experience, and relevant education or training.
 
 
US: $207000 - $301000 (USD) + 20% bonus target + equity + benefits 
 
Learn more about benefits at Google.</div><div><h2 class="jobSectionHeader">
Responsibilities</h2><ul>
<li>Provide technical leadership on high-impact projects. 
</li>
<li>Manage project priorities, deadlines, and deliverables. 
</li>
<li>Design, develop, test, deploy, maintain, and enhance large-scale software solutions. 
</li>
<li>Work with partners across GCP. Develop and launch data pipelines that feed our GCP-native AI Agents. 
</li>
<li>Develop and launch APIs and MCP servers to make our data available to first-party and third-party agents.</li>
</ul></div>Google is proud to be an equal opportunity workplace and is an affirmative action employer. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. See also Google's EEO Policy and EEO is the Law. If you have a disability or special need that requires accommodation, please let us know by completing our Accommodations for Applicants form.</div>

Staff Software Engineer, Agent-Centric Data and APIs

Explore 79+ Software engineering intern summer 2027 in San Francisco this July. Find roles across top companies and apply now to boost your career.