Jack & Jill

About the Company

Ok, I'll go first. I'm Jack, an AI that gets to know you deeply, what you’re great at and what you want out of your career. I then work to make that a reality – finding the best fit public job listings as they come up, supporting with applications, interview prep, and moral support. I also work together with my partner Jill to find off-market opportunities and introduce you directly to companies, just like a recruiter would. And I'm Jill, an AI that spends time with hiring managers and talent teams to really understand their company, their open roles, and who will thrive there. I work with Jack to find great fit people, like a headhunter with 1000x the network. Head to website and have a chat with us, we're always online.

Listed Jobs

Company Name

Jack & Jill

Job Title

Engineer at fast-growing AI software company

Job Description

Job title: Software Engineer – Full Stack Role Summary: Deliver end‑to‑end feature development for an AI‑powered collaboration platform. Drive architecture, engineering quality, and customer‑centric product evolution in a fast‑moving startup environment. Expectations: - Minimum 2 years of professional software development, preferably in a high‑growth startup setting. - Experience shipping production‑grade, well‑tested code quickly and scaling services efficiently. - Demonstrated ability to engage customers for user‑experience insight. Key Responsibilities: - Design, build, and maintain the full stack (React front‑end, Python back‑end, AWS infrastructure, MongoDB data store). - Rapidly iterate on new features, ensuring clean, test‑driven, and secure codebases. - Collaborate with product and design teams to translate customer feedback into intuitive AI‑enhanced interfaces. - Contribute to technical strategy, architecture decisions, and system reliability best practices. Required Skills: - Strong proficiency in React and TypeScript (frontend). - Solid experience in Python, including RESTful API development and asynchronous programming. - Familiarity with cloud services (AWS) and NoSQL databases (MongoDB). - Understanding of generative AI/LLM integration (OpenAI, HuggingFace, etc.) highly desirable. - Experience with automated testing, CI/CD pipelines, and code‑review workflows. - Excellent problem‑solving, communication, and teamwork skills. Required Education & Certifications: - Bachelor’s degree in Computer Science, Software Engineering, or related field, or equivalent professional experience. - No mandatory certifications, though knowledge of relevant cloud or AI certifications is a plus.

San francisco, United states

Hybrid

Junior

22-12-2025

Company Name

Jack & Jill

Job Title

Software Engineer (£70k-£80k + Equity) at greentech home improvement platform

Job Description

**Job title:** Software Engineer **Role Summary:** Design, develop, and maintain core systems for a greentech platform that improves home energy efficiency. Execute full‑stack development from database design to user interface, handling customer journeys, internal tools, and energy‑calculation models. Operate with significant autonomy in a fast‑growing environment, delivering high‑impact features that help reduce energy consumption and bills. **Expactations:** - Deliver fully‑functional features that are shipped to end users. - Own code quality, testing, and deployment lifecycle. - Make data‑driven decisions on when to refactor or rebuild components. - Partner with product managers and designers to translate user needs into technical solutions. **Key Responsibilities:** - Build and extend web applications using Python/Django and modern front‑end stack. - Design and implement database schemas, APIs, and business logic for customer and internal workflows. - Optimize existing services for performance, scalability, and reliability. - Write automated tests, perform code reviews, and maintain documentation. - Collaborate with non‑engineering stakeholders to define requirements and prioritize backlog. - Participate in sprint planning, stand‑ups, and retrospectives. **Required Skills:** - Proficient in Python and Django, with experience in RESTful API design. - Comfortable developing full‑stack features, including modern UI frameworks (React, Vue, or similar). - Strong understanding of relational databases (PostgreSQL, MySQL). - Familiar with version control (Git) and CI/CD pipelines. - Experience with testing frameworks (pytest, unittest, Jest, etc.). - Ability to work independently and make architectural decisions. - Good communication and collaboration skills. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Software Engineering, or related field, or equivalent professional experience.

London, United kingdom

Remote

23-12-2025

Company Name

Jack & Jill

Job Title

Software Engineer (£60-100K + Equity) at Fit Collective

Job Description

**Job title** Software Engineer **Role Summary** Build AI‑powered production pre‑pilot interfaces and customer‑facing web applications that reduce textile waste. Design and maintain ecommerce integrations and self‑service onboarding platforms using TypeScript, Python, React, FastAPI, and Snowflake in a cloud‑native AWS environment. **Expectations** - Minimum 3 years professional experience building production‑grade TypeScript and Python applications. - Proven ability to ship end‑to‑end features quickly and take full ownership from ideation to deployment. - Startup mindset focused on pragmatic, high‑impact solutions. **Key Responsibilities** - Develop and iterate the AI pre‑production co‑pilot UI that guides designers through the creation process. - Build, test, and maintain robust Shopify (and other ecommerce) integrations delivering real‑time, personalized size recommendations. - Architect and scale a self‑service onboarding platform enabling fashion brands to connect PLM and returns data. - Operate in a cloud‑native environment (AWS), ensuring scalability, reliability, and security. - Collaborate with product, design, and data teams to align technical delivery with sustainability goals. **Required Skills** - Strong proficiency in TypeScript, Python, and React. - Experience with FastAPI, Snowflake, and AWS cloud services (EC2, Lambda, S3, RDS, etc.). - Solid understanding of RESTful API design, GraphQL, and modern frontend architectures. - Familiarity with ecommerce platforms (e.g., Shopify) and PLM integration concepts. - Continuous integration/continuous deployment (CI/CD), automated testing, and performance monitoring. - Excellent communication, problem‑solving, and documentation skills. **Required Education & Certifications** Bachelor’s degree or higher in Computer Science, Software Engineering, or a related field. Certifications in AWS or similar cloud platforms are a plus but not mandatory.

London, United kingdom

Hybrid

Junior

01-01-2026

Company Name

Jack & Jill

Job Title

Full Stack Software Contractor at high-growth full-stack SaaS startup

Job Description

Job Title Full Stack Software Contractor Role Summary Provide critical bug triage, troubleshooting, and resolution for a high‑growth SaaS platform built on Go and Next.js. Maintain platform stability and enhance overall user experience during a period of scaling. Expectations - Stabilize core product by identifying, reproducing, and resolving production‑level bugs. - Deliver high‑quality, maintainable code with minimal impact on uptime. - Communicate status and blocking issues to cross‑functional teams. Key Responsibilities - Debug complex issues in Next.js front‑end applications. - Optimize and fix server‑side logic written in Golang. - Collaborate with engineering, QA, and product teams to ensure quality code integration. - Produce clear, concise defect reports and post‑mortem documentation. Required Skills - Strong proficiency in Next.js (React) for front‑end development. - Solid experience writing, debugging, and optimizing Golang services. - Proven track record of troubleshooting and fixing production bugs. - Familiarity with modern dev‑ops practices (CI/CD, monitoring, alerting). - Excellent communication and teamwork skills in a remote environment. Required Education & Certifications - Bachelor’s degree in Computer Science, Software Engineering or equivalent practical experience.

London, United kingdom

Hybrid

01-01-2026