Haystack

About the Company

Discover Haystack - the UK's fastest growing tech hiring marketplace.

Driven by our award-winning mobile app and web platform, Haystack connects active and passive tech talent directly with hiring managers and talent acquisition teams.

We're trusted by over 150,000+ UK-based techies, working in Software Engineering, Data, Design, DevOps, Cloud, Tech Management, Testing, Product & Delivery, Architecture and more.

100s of employers from startups and scale-ups like Atom Bank, DuckDuckGo and Football Radar to established enterprises like American Express, Dunelm and Raytheon use Haystack to discover tech talent that they can't find anywhere else.

Listed Jobs

Company Name

Haystack

Job Title

Integration Engineer

Job Description

Remote-first role – access to London office

We're looking for an API Developer to help build and maintain the core infrastructure of our platform — a robust and flexible API layer that supports our operations and integrates with a variety of third-party services.

You'll collaborate closely with designers, front-end developers, and client-facing teams to ensure seamless system integration. You’ll also have the autonomy to influence how solutions are designed and delivered.

What We're Looking For
A developer who brings more than just code — someone who actively contributes to product, UX, and design conversations to help develop stronger solutions
Someone who thrives in a fast-paced, evolving environment
Strong communicator with solid prioritisation and estimation skills
A self-starter who takes ownership and enjoys working independently

What You'll Need

Essential experience:
Proficiency in Python and the Django framework
Experience building APIs for web services
Familiarity with GraphQL
Writing client code that interacts with and syncs external APIs
Writing unit and integration tests using Python testing libraries
Working with relational databases (e.g., PostgreSQL)

Bonus experience (nice to have):
Experience with BigQuery
Familiarity with Docker and containerisation
Exposure to Google Cloud Platform or Amazon Web Services
Interest or background in advertising or the creative industries
Experience with advertising APIs (e.g., Meta, Google, Snapchat, TikTok)

Perks & Benefits
Generous annual leave, plus public holidays and seasonal closures
Flexible working options
Early finish every Friday
Bonus scheme
Wellness and fitness benefits
Tech and cycle schemes
Private health insurance
Pension contributions
Regular social events and team trips

Culture & Values
Our culture is built on trust. We hire people who inspire us and empower them to make the right decisions. We believe in working hard without being overworked, and in giving people the freedom to choose the environment that helps them perform best.

We prioritise doing the right thing — by our people, our clients, and each other. We value transparency and operate without egos or industry fluff.

We are committed to equal opportunities for all applicants and team members regardless of gender, identity, ethnicity, background, ability, religion, sexual orientation, or age.

United Kingdom

Remote

17-04-2025

Company Name

Haystack

Job Title

Full Stack Engineer

Job Description

Job Title: Full Stack Software Engineer (React / Python)
Location: Fully remote (UK-based)
Experience: 4+ years
Salary: Competitive
Type: Full-time, Permanent

About the Role
We’re looking for a Full Stack Software Engineer to join our growing team, working across the full development lifecycle—from architecture and design through to deployment and support. You’ll be building modern, scalable applications using React on the frontend and Python (Django/FastAPI/Flask – depending on the stack) on the backend.

You’ll play a key role in shaping the direction of our products and have real impact in a high-autonomy, low-ego environment.

What You’ll Do
Design, build, and maintain full-stack applications using React and Python
Collaborate with cross-functional teams including Product, Design, and Data
Write clean, scalable, and well-tested code
Contribute to architecture decisions and influence tech stack evolution
Participate in code reviews and mentor junior developers
Work with CI/CD pipelines and cloud services (e.g., AWS, GCP, or Azure)
Take ownership of features from concept to production

About You
4+ years’ professional experience as a full stack engineer (or frontend/backend with full stack exposure)
Proficient in React, JavaScript/TypeScript, HTML/CSS
Strong backend experience in Python – ideally with Django, FastAPI, or Flask
Familiar with REST APIs, SQL/NoSQL databases, and cloud infrastructure
Comfortable in a collaborative and agile environment
Strong communication skills and a pragmatic, problem-solving mindset

Bonus Points
Experience with containerization (e.g., Docker, Kubernetes)
Knowledge of testing frameworks (e.g., Jest, PyTest)
Familiarity with DevOps practices and CI/CD pipelines
Experience with cloud services (AWS, GCP, or Azure)

Perks & Benefits
Generous holiday allowance
Pension contributions
Learning & development budget
Friendly, collaborative team culture
Regular team socials

England, United Kingdom

Hybrid

23-04-2025

Company Name

Haystack

Job Title

Senior Full Stack Engineer

Job Description

Job Title: Senior Full Stack Engineer
Location: Central London
Mode of working: Hybrid (3 Days/Week in Office)
Job Type: Permanent

About the Role:
Our client is a fast-growing fintech helping businesses streamline international payments. Backed by top investors, they are building innovative solutions to tackle key financial challenges in emerging markets.
As an early engineering hire, you’ll work closely with the founding team to shape their product and tech architecture. You’ll develop impactful solutions, balancing usability, efficiency, and security.

Responsibilities:
Develop and enhance web interfaces and backend logic.
Implement security and data protection best practices.
Automate internal processes and improve technical workflows.
Communicate feature updates and gather user feedback.

Tech Stack:
TypeScript, React, Next.js, Node.js, Express, PostgreSQL.

Requirements:
Experience in a VC-backed engineering team.
Strong web development skills.
Excellent communication and problem-solving abilities.
Passion for fintech and emerging markets.
Based in London.

Perks:
Competitive salary, equity, and benefits.
Hybrid work (3 days in-office).
Immediate start (flexible).

London, United Kingdom

Hybrid

29-04-2025