Full-Stack (Haskell Backend + PureScript Frontend)

Description Work at DaCodes

We are a software and digital transformation firm delivering high-impact solutions. For 10 years, we have created technology-driven innovations with a team of +220 talented #DaCoders, including developers, architects, UX/UI designers, PMs, QA testers and more. Our teams collaborate with clients across LATAM and the US, consistently achieving outstanding results. At DaCodes, you will have the opportunity to boost your professional growth, work on diverse projects across multiple industries, and contribute to the design, implementation, and optimization of cloud-based infrastructures. Our DaCoders have a huge impact on the success of our business and our clients. You will be the expert driving our projects forward, while gaining exposure to disruptive startups and global brands.

Are you in?

Requirements REQUIREMENTS

Role:

Fullstack Software Engineer (Haskell Backend + PureScript Frontend) Core stack:

Haskell, PureScript, PostgreSQL, and custom database technology

Key Responsibilities

Design, implement, and maintain

backend services in Haskell , leveraging strong static typing and functional programming best practices. Develop

front-end applications in PureScript

(e.g., Halogen, React-Basic-Hooks), integrating APIs and handling asynchronous workflows safely. Model, query, and optimize

PostgreSQL databases , ensuring performance, scalability, and reliability. Build and maintain

custom database connectors and data access layers

to support proprietary database technology. Write comprehensive

unit and integration tests

(Hspec, Hedgehog, QuickCheck, purescript-spec) to ensure high-quality software delivery. Contribute to code reviews, documentation, and technical standards across teams. Ensure

security, observability, and resilience

in production environments.

Desired Profile

5 years of experience

in backend development with

Haskell

(GHC, Servant, Warp, Aeson, Polysemy, etc.). 5

years of experience

in frontend functional development with

PureScript

(or equivalent experience with TypeScript/React + FFI). Solid knowledge of

SQL and PostgreSQL , including schema design, complex queries, transactions, and performance tuning. Experience integrating and maintaining

custom or proprietary databases . Familiarity with containerization and CI/CD workflows (Docker, GitHub Actions/GitLab CI). Nice to have: experience with

Nix

for reproducible environments, microservices, and message-driven architectures (Kafka, RabbitMQ). Professional English skills for documentation and collaboration with international teams. Soft skills: strong communication, analytical thinking, ownership, and teamwork. Tools & Technologies

Backend:

Haskell (GHC), Servant/Scotty, Polysemy, Aeson, Persistent/Beam/Hasql. Frontend:

PureScript, Halogen, React-Basic-Hooks, Aff/Affjax. Databases:

PostgreSQL, Sqitch/Flyway migrations, Redis (nice to have), integration with custom databases. Infra & DevEx:

Docker, CI/CD pipelines, observability with Prometheus/OpenTelemetry. Other Requirements

Language:

Fluent

English (professional working proficiency).

Benefits Work with global brands and disruptive startups. Remote / home office. Work schedule aligned with assigned project/cell. Monday to Friday. Birthday day off. Major medical insurance (applicable in Mexico). Life insurance (applicable in Mexico). Multicultural teams. Access to courses and certifications. Meetups with special IT guests. Virtual integration events and interest groups. English classes. Opportunities across our different business lines. Proudly certified as a Great Place to Work.