Backend Engineer-(4+ years)

16 hours ago

Davao City, Davao, Philippines Private Advertiser Full time ₱1,440,000 - ₱2,160,000 per year

Senior Backend Developer + PostgreSQL + AI Integrations)

Company: White Code Labs

Location: Remote

Experience Required: 4+ years (Part-time).


About White Code Labs

White Code Labs is a software engineering and innovation company that builds scalable, cloud-native products across AI, communication, and enterprise automation.

We are currently developing an AI-powered email app that transforms the way users write, manage, and send emails .

We're looking for a Senior Backend Engineer who can help design, build, and scale the backbone of this platform.


Role Overview

As a Senior Backend Developer, you will lead the architecture, API design, and backend development for our AI-driven email platform.

You will work closely with frontend, AI, and DevOps teams to ensure reliability, scalability, and seamless integrations with voice recognition, AI text enhancement, and email APIs (Gmail, Outlook, etc.).

This role is ideal for someone who thrives in a startup-style environment, working on challenging technical problems, designing for scale, and taking full ownership of backend services.


Key Responsibilities
  • Design and implement RESTful APIs to handle email composition, AI enhancement, and integrations with email providers.
  • Integrate third-party APIs such as Gmail, Microsoft Outlook, OpenAI Whisper (Speech-to-Text), and GPT-based text improvement models.
  • Design scalable and secure database schemas in PostgreSQL for storing user data, drafts, and analytics.
  • Implement background processing for asynchronous tasks (e.g., voice transcription, AI enhancement, email delivery).
  • Build secure OAuth 2.0 authentication flows for third-party email accounts.
  • Optimize system performance, query execution, and caching strategies for scalability.
  • Implement monitoring, logging, and alerting to ensure system reliability.
  • Collaborate with AI engineers and frontend developers to ship new features quickly and safely.
  • Contribute to technical documentation, architecture design, and code review practices.

Required Skills & Experience
  • 4+ years of professional experience in software/backend development.
  • Strong expertise in , , and PostgreSQL.
  • Deep understanding of API design, data modeling, and scalable architecture.
  • Experience integrating with email APIs (Gmail, Outlook, or SendGrid).
  • Experience working with AI APIs such as OpenAI, Whisper, or other LLM services.
  • Solid understanding of OAuth 2.0, JWT, and secure authentication flows.
  • Experience deploying applications on AWS, GCP, or Azure using Docker or containerized workflows.
  • Familiarity with background job systems (Redis, BullMQ, RabbitMQ, etc.).
  • Strong understanding of encryption, data security, and rate limiting best practices.
  • Proficiency with Git, CI/CD pipelines, and cloud monitoring tools (Datadog, Sentry, CloudWatch).
  • Excellent communication skills and the ability to work independently in a distributed team.

Preferred (Nice to Have)
  • Experience with speech-to-text technologies (Whisper, Google Speech API, AWS Transcribe).
  • Knowledge of GraphQL and microservices architecture.
  • Experience building real-time or streaming data pipelines.
  • Familiarity with LLM prompt engineering or AI-based personalization systems.

What We Offer
  • Competitive pay based on experience and contribution.
  • Flexible working hours.
  • Remote-first team with asynchronous collaboration.
  • Opportunity to work on a cutting-edge AI communication product from the ground up.
  • Potential to transition into a Senior Backend Tech Lead role.

  • Part-Time Backend Developer

    6 days ago

    Davao City, Davao, Philippines Sozoroad Full time ₱900,000 - ₱1,200,000 per year

    This is a remote position.Who We AreAt Sozoroad, we are a dynamic consulting and technology partner dedicated to assisting small and mid-sized businesses, nonprofit organizations, and local government entities in navigating change and fostering growth through innovation. Our team brings extensive expertise in digital strategy, operations, and emerging...

  • Project Engineer

    1 week ago

    Davao City, Davao, Philippines Grand Regal Hotel Davao Full time ₱600,000 - ₱1,200,000 per year

    We are looking for a highly organized and detail-oriented Project Engineer to assist in planning, coordinating, and overseeing construction and engineering projects. The ideal candidate is hands-on, proactive, and has experience managing timelines, resources, and site execution.Qualifications:Bachelor's Degree in Civil Engineering, Mechanical Engineering,...

  • Project Engineer

    1 week ago

    Davao City, Davao, Philippines 121 East Development Inc. Full time ₱420,000 per year

    Educational Requirements - BSc/BEng in Civil Engineering Work Experience RequirementsProject Engineer4–8 yearsDesign, supervision, and coordination of horizontal construction Key Experience Areas for Horizontal ConstructionRoad and highway constructionEarthworks and gradingDrainage and stormwater systemsPavement materials and designTraffic control and...

  • project engineer

    2 days ago

    Davao City, Davao, Philippines Gigaworkz Technologies Inc. Full time ₱120,000 - ₱180,000 per year

    Requirements:Candidate must possess at least Professional License (Passed Board/Bar/Professional License Exam) in Engineering (Civil), Engineering (Computer/Telecommunication), Engineering (Electrical/Electronic), Engineering (Others) or equivalent.At least 1 Year(s) of working experience in the related field is required for this position.Preferably 1-4 Yrs...

  • osp engineer

    1 week ago

    Davao City, Davao, Philippines InfiniVAN Inc. Full time ₱900,000 - ₱1,200,000 per year

    WHAT WE OFFER: Premium HMO with 330,000 MBL and 3 dependents with 230,000 MBL each 50% discount on Shinagawa's Lasik and Aesthetics 20% discount with Shinagawa Pharmacy Rewards and incentives Training and Engagement activities Career advancement opportunities Paid referral programABOUT US:InfiniVAN, Inc. is a Japan-affiliated digital solutions and...

  • Sr. Frontend Developer

    2 weeks ago

    Davao City, Davao, Philippines Inriver Full time ₱900,000 - ₱1,200,000 per year

    Do you want to work with a market-leading solution, front-line technology and team-up with driven, dedicated and skilled people? inriver is a highly ambitious global company with great growth in the SaaS industry. At inriver, you are guided by our values and work in an entrepreneurial atmosphere. You team up with amazingly talented people where our strong...

  • Sales Engineer- Ventilation

    1 week ago

    Davao City, Davao, Philippines Zenith United Electric Corporation Full time ₱900,000 - ₱1,200,000 per year

    JOB OBJECTIVES:Contribute to the overall business targets by generating sales from markets and industries applicable for assigned products and brands.ESSENTIAL FUNCTIONS:Achieve or exceed sales targets by generating sales from assigned customers.Perform various sales activities to generate sales opportunities from assigned customers which include but not...

  • Native Mobile app developer

    1 week ago

    Davao City, Davao, Philippines WNS Global Services, Inc. Full time ₱600,000 - ₱1,200,000 per year

    Company DescriptionWNS (Holdings) Limited (NYSE: WNS), is a leading Business Process Management (BPM) company. We combine our deep industry knowledge with technology and analytics expertise to co-create innovative, digital-led transformational solutions with clients across 10 industries. We enable businesses in Travel, Insurance, Banking and Financial...

  • Software Developer

    15 hours ago

    Davao City, Davao, Philippines DCtecH Network Services Inc. Full time ₱250,000 - ₱500,000 per year

    Responsibilities and Skills:Analyze user and system requirementsBuild efficient and functional programs and systems that serve user needsWork with other developers, project manager, scrum master and product, owner/manager throughout the software development life cycleDevelop web UITest and debug front-end and back-end layers of applicationsWrite tests of...

  • Civil Engineer

    2 weeks ago

    Davao City, Davao, Philippines WRN Health Incorporated Full time ₱900,000 - ₱1,200,000 per year

    About the roleWRN Health Incorporated is seeking an experienced Civil Engineer to join our team in Davao City, Davao del Sur. In this full-time role, you will be responsible for overseeing the design, planning, and construction of various civil engineering projects within our organisation.What you'll be doingDesigning and developing detailed civil...