Founding Engineer (Full Stack Web) Job at YC Work at a Startup (San Francisco)

Founding iOS Engineer

Babylist is looking for a Senior iOS Engineer to join our newest venture—a stand...

Location

United States , Needham

Salary:

180100.00 - 225082.00 USD / Year

Babylist

Expiration Date

Until further notice

Requirements

Strong understanding of software development principles, capabilities, and limitations of the iOS platform
Well-versed in the intricacies of iOS development and can navigate its unique features and constraints
8+ years of proven experience in iOS app development using Swift
Comfortable working with Swift and SwiftUI and have a deep understanding of syntax, features, and best practices
Familiar with Foundation, SwiftUI, CoreAnimation and other foundational Apple frameworks and patterns
Hands-on experience with SwiftUI, Previews, and rapid prototyping
Passion for building consumer-facing products and moving quickly in the zero-to-one of a new product
Experience with AI-driven software development practices and tools
Solid understanding of the Android ecosystem, with direct Android development experience being a plus
Comfortable and enthusiastic about working in an AI-forward environment where AI tools are part of daily operations

Job Responsibility

Conceptualize, design and develop our new standalone iOS app, taking ownership of the entire development lifecycle
Develop features and functionality, ensuring a seamless and delightful user experience
Collaborate closely with your designer and product manager to translate requirements into technical specifications and user-friendly interfaces
Transform concepts and designs into intuitive and visually appealing iOS app interfaces
Collaborate closely with a full-stack web engineer to align on architecture, API design, and more
Write clean, efficient, and maintainable code following industry best practices and coding standards
Employ various testing techniques, write unit tests, and leverage debugging tools to identify and address any issues or bugs
Collaborate effectively with team members, actively participating in discussions and brainstorming sessions
Contribute to feature ideation, and providing insights to the team

What we offer

Competitive salary with equity and bonus opportunities
Company-paid medical, dental, and vision insurance
Retirement savings plan with company matching and flexible spending accounts
Generous paid parental leave and PTO
Remote work stipend to set up your office
Perks for physical, mental, and emotional health, parenting, childcare, and financial planning

Fulltime

Founding AI Engineer

Flint is defining the next generation of websites: ones that can constantly buil...

Location

United States , San Francisco

Salary:

150000.00 - 250000.00 USD / Year

Flint

Expiration Date

Until further notice

Requirements

You are a product-first engineer
You have built and deployed AI products that real users depend on
You have extensive hands-on experience with prompt engineering, context optimization, and model fine-tuning
You have strong full-stack engineering skills with experience integrating AI into web applications
You regularly use AI IDEs like Cursor or Windsurf to code
You take ownership of problems from start to finish and are eager to learn whatever you need to succeed
You’re comfortable in a fast-paced environment with evolving requirements
You have enthusiasm for building MVPs and iterating based on user feedback

Job Responsibility

Designing and implementing production-grade agentic systems that power web experiences and marketing workflows, leveraging advanced prompt engineering and multi-agent architectures to do so
Architecting and optimizing RAG (Retrieval-Augmented Generation) systems with context engineering
Strengthening our engineering processes through robust evals, observability, and testing
Developing and maintaining the core application across frontend, backend, and infrastructure
Shaping our technical vision and leading architectural discussions. You'll make foundational decisions that influence both Flint's technical architecture and engineering culture.
Creating and testing prototypes to gather rapid feedback from users

What we offer

Historic office in Jackson Square (with 2 rooftops and a shower)
A crazy upside-down battlestation
20 PTO days a year and full health benefits
Lunch and a fully stocked snack bar at the office, incl. Cometeer coffee pods
Dog friendly
Competitive salary + equity

Fulltime

Founding Engineer: Backend + AI-Focused Full-Stack Developer

We’re building autonomous AI agents that resolve customer support tickets for e-...

Location

United States , New York

Salary:

150000.00 - 250000.00 USD / Year

YC Work at a Startup

Expiration Date

Until further notice

Requirements

You can own features end-to-end and enjoy doing so
You ship fast and care about quality, clean architecture, solid tests, good UI
You’re resourceful and persistent, you figure things out
You’ve built things you’re proud of (products, open source, side projects)
You use AI tools daily and want to keep raising that bar
You think in systems and multipliers, not just tasks
Skills: Next.js, Python, React, TypeScript, Amazon Web Services (AWS)
Backend: Python, FastAPI, AWS
Frontend: TypeScript, React, Next.js

Job Responsibility

Ship production features across the stack
Work in tight loops: build → test → measure → refine
Use AI tools daily (Cursor, Claude, etc.) and push them further
automate glue work, generate scaffolds, build evals, multiply your own output
Take ownership of outcomes, not tickets
Build the agent runtime, evals, and integration layer that let us scale

What we offer

0.50% - 2.25% equity

Fulltime

Founding Engineer: Product-Focused Full-Stack Developer

We’re building autonomous AI agents that resolve customer support tickets for e-...

Location

United States , New York

Salary:

150000.00 - 250000.00 USD / Year

YC Work at a Startup

Expiration Date

Until further notice

Requirements

Can own features end-to-end and enjoy doing so
Ships fast and cares about quality, clean architecture, solid tests, good UI
Is resourceful and persistent, figures things out
Has built things they're proud of (products, open source, side projects)
Uses AI tools daily and wants to keep raising that bar
Thinks in systems and multipliers, not just tasks
Skills: Next.js, Python, React, TypeScript, Amazon Web Services (AWS)

Job Responsibility

Ship production features across the stack
Work in tight loops: build → test → measure → refine
Use AI tools daily (Cursor, Claude, etc.) and push them further
automate glue work, generate scaffolds, build evals, multiply your own output
Take ownership of outcomes, not tickets
Build the interfaces and workflows that make self-serve setup actually work
Talk to users to figure out what's missing

What we offer

0.50% - 2.25% equity

Fulltime

New

Logistics Manager

We are seeking a highly experienced and motivated Logistics Manager to work on a...

Location

United Kingdom , Isle of Skye

Salary:

Not provided

Randstad

Expiration Date

March 21, 2026

Requirements

Bachelor's degree in logistics, supply chain management, or a related field
Proven experience in logistics management, preferably in the pipeline or civil engineering sector
In-depth knowledge of logistics principles, best practices, and regulations
Strong leadership and team management skills, with the ability to motivate and develop a diverse team
Excellent organisational and problem-solving abilities, with a keen attention to detail
Effective communication and interpersonal skills, with the ability to collaborate with multidisciplinary teams and stakeholders
Proficiency in logistics software and systems for inventory management and transportation tracking
Familiarity with health, safety, and environmental regulations in the pipeline industry
Ability to work under pressure and meet tight deadlines

Job Responsibility

Develop and implement logistics strategies and plans for the pipeline project, ensuring efficient and cost-effective operations
Coordinate with project managers, suppliers, and contractors to ensure timely delivery of equipment, materials, and personnel to the project site
Manage the logistics team, including hiring, training, and performance evaluation
Monitor and track inventory levels, ensuring an adequate supply of materials and equipment at all times
Oversee transportation activities, including coordinating with shipping companies, arranging permits, and ensuring compliance with relevant regulations
Implement effective safety and security protocols to protect personnel and assets during transportation and storage
Evaluate and select suppliers and contractors, negotiating contracts and managing vendor relationships
Develop and maintain strong relationships with internal and external stakeholders, including project team members, clients, and government authorities
Monitor project timelines and budgets, identifying and resolving logistics-related issues that may impact project delivery
Conduct regular reporting and analysis of logistics operations, providing recommendations for process improvement and cost reduction

New

Bid Manager

Our large Utilities client is currently hiring for a Bid Manager position. You w...

Location

Ireland , Castlebar

Salary:

Not provided

Randstad

Expiration Date

March 05, 2026

Requirements

7-8 years of experience in a similar role
Experience managing multiple internal and external stakeholders
Understand the procurement processes

Job Responsibility

Responsible for the production, quality and timely delivery of compliant, commercially sound, market-leading, winning bids and proposals
Manage the Client/Supplier experience and relationship
Plan and manage bid teams and inputs from a variety of internal stakeholders

!

New

Property Manager

Location

United Kingdom , St Neots

Salary:

Not provided

Randstad

Expiration Date

March 27, 2026

Requirements

Good understanding of Residential Property Management and current legislation
Well developed interpersonal and oral communications skills
Interpersonal skills and customer focused
Ability to work on own initiative
Good literate and numerical skills
Diplomacy
Ability to prioritise workload and work under pressure
Candidates must be eligible to live and work in the UK

Job Responsibility

Manage portfolio in accordance with RICS Codes of Practice, ARMA rules
Assisting the Senior Property Manager to provide a full professional property management services for a portfolio of freehold/leasehold developments and individual properties on behalf of freehold clients, Developers and Resident Management Companies, proactively manage in relation to managing agent/SLA
Assisting the Senior Property Manager to manage in relation to company targets of income and service delivery
Dealing with leaseholders enquiries appertaining to the development
Handling telephone calls and taking detailed messages/dealing with them in an appropriate manner
Responding to correspondence/emails including those from Directors, lessees and tenants - as requested by the Senior Property Manager or Team Leader
Issue Draft Minutes to Directors
Action Minutes
Write to lessees/tenants/letting agents in relation to any matters which may contravene the terms of the lease, i.e. noise/nuisance, satellite dishes, untaxed vehicles, pets, etc
Contacting the DVLA regarding abandoned cars following procedures

New

High-bay operator

We are looking for an additional, motivated colleague for the challenging role o...

Location

Belgium , Ypres

Salary:

Not provided

Randstad

Expiration Date

March 26, 2026

Requirements

Working at Heights: You will operate our high-bay installation, which includes occasionally climbing up to 30 meters for inspections or technical interventions
Physical Stamina: You are in good physical condition to handle various job-related tasks (such as using equipment to maneuver pallets into the correct positions)
Technical Insight: You have the ability to detect, troubleshoot, and resolve mechanical or system malfunctions
Process Management: You possess solid computer skills and a strong understanding of industrial processes and systems
Shift System: You will work in a rotating 2-shift system: 06:00 AM – 02:00 PM and 02:00 PM – 10:00 PM

Job Responsibility

Process Execution: Carrying out all designated process orders and tasks accurately
Flow Monitoring: Monitoring the product flow across the entire system to ensure seamless operations
Inbound & Outbound Recovery: Performing corrective actions and interventions during the inbound (storage) or outbound (retrieval) processes
Labeling & Verification: Checking and applying labels to ensure full traceability of goods
Administrative Support: Handling limited administrative tasks and email correspondence in support of your core duties
Loading & Unloading: Safely loading and unloading trucks using the appropriate equipment
General Maintenance: Performing non-technical maintenance tasks to keep the installation in top condition
Food Safety & Compliance: Operating in accordance with monitoring procedures for Critical Control Points (CCPs) during the storage and transport of food products, and reporting any deviations to your supervisor immediately

Fulltime

Founding Engineer (Full Stack Web)

YC Work at a Startup

Location:
United States , San Francisco

Category:
IT - Software Development

Contract Type:
Employment contract

Salary:

Job Description:

Job Responsibility:

Requirements:

Nice to have:

Additional Information:

Job Posted:
January 07, 2026

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