Senior Full-Stack Engineer, Integrations Job at Front (Santiago)

Senior Full-Stack Engineer, Integrations

We’re looking for a strong and trusted Senior Software Engineer who operates ind...

Location

Argentina; Chile , Santiago

Salary:

Not provided

Front

Expiration Date

Until further notice

Requirements

Advanced expertise in JavaScript / TypeScript
Strong experience building scalable backend services using Node.js
Strong proficiency with frontend frameworks such as React and modern web development patterns
Experience with scalable cloud infrastructure and AWS services (e.g., Lambda, S3, RDS), CI/CD pipelines, and production deployments
Familiarity with RESTful APIs, modern database systems (SQL or NoSQL), and distributed system challenges
Ability to make thoughtful tradeoffs between performance, reliability, and speed of delivery
Strong collaboration skills to work with cross-functional partners
Demonstrated ability to mentor and guide others technically

Job Responsibility

Take full ownership of significant components or services, driving them from design to production with minimal direction
Be a go-to expert in one area of the codebase while maintaining awareness of system-wide architecture
Apply technical expertise and domain knowledge to solve complex problems requiring creativity and sound engineering judgment
Plan and execute major assignments or multiple concurrent projects, balancing pace, quality, and long-term maintainability
Serve as a technical contact on cross-functional projects, coordinating with product, design, and other teams
Mentor and uplift the team through code reviews, documentation, guidance, and technical leadership on project delivery
Make others better by offering thoughtful technical feedback, contributing to standards, and championing best practices

What we offer

Competitive salary in USD

Fulltime

New

Senior Full-Stack Engineer

We are partnering with our client to hire a Senior Full-Stack Engineer. In this ...

Location

United Kingdom , City of London

Salary:

50000.00 - 60000.00 GBP / Year

Randstad

Expiration Date

July 16, 2026

Requirements

5 to 7 years of experience in full-stack software engineering
Deep backend expertise in Core Java, specifically with multithreading, complex algorithms, and data structures
Frontend proficiency building responsive UIs with ReactJS, JavaScript/TypeScript, and state management tools (Redux or Context API)
Architectural design skills spanning application, data, and cloud solution architecture
Cloud & Infrastructure knowledge with proven hands-on experience using AWS and Kubernetes
Domain experience working within Investment Banking, ideally with a focus on risk management platforms

Job Responsibility

Build scalable applications using Core Java, multithreading, and ReactJS to handle heavy datasets efficiently
Engineer cloud-native solutions by designing, maintaining, and deploying applications leveraging Kubernetes and Amazon AWS
Design and integrate APIs using REST and gRPC to ensure seamless connectivity between the frontend and backend
Implement event streaming by integrating Kafka for real-time financial data processing
Lead and mentor junior developers, championing CI/CD automation, security standards, and Agile best practices
Bridge tech and finance by applying your investment banking and risk management knowledge to solve complex business problems

Senior Full-Stack Engineer, Payments

Build the rails that move money globally. Every year, trillions of dollars cross...

Location

United States

Salary:

80000.00 - 200000.00 USD / Year

Helpcare AI

Expiration Date

Until further notice

Requirements

5+ years of full-stack engineering experience shipping production systems at meaningful scale
Bachelor's degree in Computer Science, Software Engineering, or a related technical field
Fintech or payments background. You've shipped code that moved money, handled PII, or interacted with regulated infrastructure (banks, card networks, KYC/AML, ledgers, settlement)
True full-stack range across frontend, backend, and infra. No handoffs
Owner mindset. You measure yourself in shipped outcomes, not tickets closed
Product instinct. You'd rather talk to a customer than read a PRD about one
AI fluency. You already build with agents and have opinions on where they're strong and where they break
Scrappy and fast. You'd rather ship a working v1 on Friday than a perfect v2 next quarter

Job Responsibility

Design, build, and ship full-stack features across the Palla platform spanning APIs, services, clients, and infra
Own production systems end-to-end, including on-call for what you build
Integrate with partner APIs (banks, card networks, payout rails, KYC providers) and turn weeks of integration work into days
Work directly with partners and our product team to translate real customer needs into shipped code
Build with AI agents as teammates. Claude Code, Cursor, and the agent stack across our SDLC are core to how we work
Help shape the engineering bar, hiring loop, and culture of an early team

What we offer

Competitive base salary and meaningful founding-team equity
Fully remote across the US and LATAM, with team gatherings a few times a year
Top-tier AI tooling, fully expensed. Claude Code, Cursor, and whatever else makes you faster
Direct access to leadership, partners, and customers. No layers between you and the decisions
Real ownership of what you build, from architecture to production
Health, dental, and vision coverage
Learning budget for conferences, courses, and the tools that haven't been invented yet

Fulltime

Senior Full-Stack Engineer

Our customer empowers organizations to conduct globally connected research and m...

Location

Ukraine; Poland

Salary:

Not provided

Edvantis

Expiration Date

Until further notice

Requirements

5+ years of experience developing, maintaining, and innovating large-scale web apps and services
Strong experience with Java, Spring, and Hibernate server applications, and their design patterns
Strong experience with unit testing and Test-Driven Development (TDD)
Strong understanding of software design and architecture
Experience with Agile Development, SCRUM
Experience with relational database technology
Experience with Spring Boot and Spring Webflux
Experience with the Atlassian Tool Suite (Bitbucket, Jira, and Confluence) or similar
Experience developing applications in AWS
Solid communication skills with demonstrated ability to explain complex technical issues to both technical and non-technical audiences

Job Responsibility

Design, code, test, and maintain full-stack software solutions of moderate to high complexity
Demonstrate engineering discipline in estimating work, reporting on progress, raising blockers, and delivering on time
Build features end-to-end — from data layer to UI — with a strong sense of ownership over quality and user experience
Contribute to the design and architecture of new and existing systems, ensuring alignment with the target architecture
Develop prototypes and proofs of concept to evaluate new technologies and approaches
Work cross-functionally with various teams: product management, quality engineering, and across various product lines to deliver
Balance feature delivery with proactive investment in tech debt, test coverage, and platform health
Participate in backlog refinement and sprint planning with an eye toward quality, feasibility, and long-term sustainability
Write thorough unit, integration, and end-to-end tests as a first-class part of development, driving towards a build quality in culture
Expand automated QA coverage as a core team metric

What we offer

Remote-first work model with flexible working hours (we provide all equipment)
Comfortable and fully equipped offices in Lviv and Rzeszów
Competitive compensation with regular performance reviews
18 paid vacation days per year + all state holidays
12 days of paid sick leave per year without a medical certificate + extra paid leave for blood donation
Health & wellness support: either a monthly budget for medical insurance and sports activities, or a full medical insurance plan, depending on your cooperation model
English, German, and Polish language courses
Corporate subscription to learning platforms, regular meetups and webinars
Friendly team that values accountability, innovation, teamwork, and customer satisfaction
Inclusive environment where everyone feels valued and treated equally. We proudly partner with VeteranHub to support Ukrainian veterans

Fulltime

Senior Full-stack Engineer - Threat Intelligence

As a Senior Full stack Engineer in the Threat Intelligence team, we are looking ...

Location

Czechia , Prague

Salary:

Not provided

Rapid7

Expiration Date

Until further notice

Requirements

A minimum of 5 years of software development experience in a production environment with deep proficiency in Backend technologies (Python), including API design, Databases, and Microservices, alongside solid experience with modern Frontend frameworks.
Experience with Cloud computing (e.g., GCP, AWS, or similar).
Experience with DevOps practices (CI/CD pipelines, etc.).
Problem Solving: Strong creative problem-solving skills with a focus on system design and performance optimization.
Attention to Detail: Excellent attention to detail and a commitment to high-quality technical execution.
AI Proficiency: Hands-on approach to AI Research and the ability to integrate AI into production environments.
Passionate and responsible team player with strong communication skills.
Understanding of the full lifecycle development process, including business and functional requirements, developing technical designs, implementation of scalable solutions, and object-oriented design.

Job Responsibility

Build, maintain, and release well-architected services by writing clean Python code and following best practices.
Own a feature from database design to the UI, making well-reasoned design tradeoffs.
Lead AI Research & POCs to find innovative solutions for threat intelligence.
Take an active role in high-level architectural thinking, working with both legacy code and greenfield projects.
Partner with internal teams to ensure we are understanding and delighting our customers.

Fulltime

Senior Full-Stack Engineer

At SitePen, senior engineers are trusted to do meaningful work with other highly...

Location

United States

Salary:

Not provided

SitePen

Expiration Date

Until further notice

Requirements

Typically 15+ years of full-time software engineering experience, though exceptional candidates with fewer years are welcome.
Comfortable owning problems from browser to database to cloud infrastructure.
Able to communicate effectively with engineers, product teams, and executives.
Cares about outcomes, reliability, maintainability, and leaving systems better than they were found.
Knows when to move quickly, when to be deliberate, and when to challenge assumptions constructively.
This role assumes strong experience with AI-assisted software development and the ability to use modern tooling effectively across day-to-day engineering work, including: Solution design and technical exploration
Coding and implementation speed
Refactoring legacy systems
Debugging and root-cause analysis
Test generation and automation

Job Responsibility

Build and deliver production software across the stack
Architect practical solutions grounded in business needs
Work directly with customers, product leaders, and engineering teams
Improve systems that are slow, fragile, outdated, or difficult to scale
Raise standards through example and collaboration
Make strong technical decisions and clearly explain tradeoffs
Support other engineers through reviews, mentoring, and leadership

What we offer

Competitive compensation based on experience and impact
benefits that support a sustainable career and life outside work
Trust and autonomy
Talented peers
Practical processes
Respect for life outside work
Interesting technical challenges
Long-term thinking over short-term chaos

Fulltime

Senior Full-Stack Engineer

Senior Full-Stack Engineer – New York – On-Site – Opportunity to join one of the...

Location

United States , New York

Salary:

Not provided

Orbis Consultants

Expiration Date

Until further notice

Requirements

Several years of professional software development experience
Strong proficiency in React, TypeScript, and modern JavaScript
Hands-on experience with Node.js backend development using frameworks like NestJS, Express, or Hono
Experience with Next.js and/or React Native for building production applications
Solid understanding of relational databases (PostgreSQL preferred), including data modeling and query optimization
Familiarity with state management patterns and libraries (Redux or similar)
Experience working with design systems and component libraries
Understanding of observability fundamentals: logging, tracing, metrics, and alerting
Experience designing systems that scale—caching strategies, async processing, API design
Proficiency with Git and modern CI/CD workflows

Job Responsibility

Work across the full lifecycle of projects – from scoping and technical roadmapping to production and deployment
Have your say in technical conversations, code reviews, and architectural decision-making
Adapt to the demands of various projects and issues by working across the stack as needed
Use Node.js frameworks (NestJS, Hono, Express) to create and manage backend services
Use Next.js, React, and React Native to create efficient front-end experiences
Work together with design teams to utilise our design system on mobile and web platforms
Create schemas, optimise queries, and guarantee data integrity using relational databases (PostgreSQL)
Put into effect and uphold observability techniques, such as distributed tracing, structured logging, and monitoring

Fulltime

Senior Full-stack Engineer (React + Node.js, Nest.js)

The world’s largest B2B recommerce platform that serves as a central system of r...

Location

Ukraine

Salary:

Not provided

StartupSoft

Expiration Date

Until further notice

Requirements

5+ years of professional software engineering experience
Strong expertise in React + TypeScript
Strong expertise in Node.js + TypeScript
Strong expertise in REST API design and integration
Strong expertise in Event-driven architectures
Strong expertise in Nest.js
Experience with relational databases (PostgreSQL/AlloyDB)
Experience with message brokers (RabbitMQ or similar)
Familiarity with Kubernetes-based deployments
Experience integrating third-party APIs (marketplaces preferred)

Job Responsibility

Build a React + TypeScript application (6th React app in the ecosystem)
Reuse shared UI components
develop custom modules for Inventory, Listings, Orders, and Settings
Implement Segment event tracking
Follow the existing SSR architecture pattern
Ensure performance, scalability, and clean UX
Develop Node.js + TypeScript services
Use AlloyDB as the primary database
use MongoDB if needed for dynamic schemas
Integrate with internal REST services (Account, Location, Listing, Auction, Offering, Order)

What we offer

Global collaboration opportunities
Core team membership
Equity and ownership potential
Premier workspaces
Competitive compensation package (above average salary, benefits & medical insurance)
Cutting-edge technology environment
Impactful project contributions
Collaborative company culture

Fulltime

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Senior Full-Stack Engineer, Integrations

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