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Respondology · 17 hours ago

Senior Software Engineer (Backend)

United States

Full-time

Remote

Mid, Senior Level

$120K/yr - $155K/yr

4+ years exp

Respondology is the leader in AI-powered social comment moderation. They are seeking a Senior Backend Engineer to build and scale API services, develop RESTful APIs, optimize database performance, and integrate AI-powered features for managing social media comments.

AdvertisingSocial Media ManagementSpam Filtering

Growth Opportunities

H1B Sponsor Likely

Responsibilities

Build and maintain RESTful APIs for our Respond and Discover products using FastAPI/Python and Ruby on Rails

Design and optimize database schemas, queries, and indexes for PostgreSQL and OpenSearch/Elasticsearch

Analyze and improve API response times, focusing on sub-second performance for high-traffic endpoints

Integrate with OpenAI APIs and optimize prompt engineering for AI-powered comment responses

Debug production issues, conduct root cause analysis, and implement preventive solutions

Write comprehensive tests and participate in code reviews to maintain high code quality

Collaborate with frontend engineers and product managers to deliver features end-to-end

Monitor system performance using DataDog and respond to alerts

Qualification

PythonRESTful API designPostgreSQLRuby on RailsOpenSearch/ElasticsearchAWS servicesAutomated testingProject ownershipTeam collaborationCommunication skills

Required

Minimum 4 years of professional software engineering experience

Minimum 3 years proven experience with Python backend development (FastAPI, Flask, or Django)

Minimum 2 years working with PostgreSQL or other relational databases

Bachelor's degree in Computer Science, related degree, or equivalent work experience. If you have a four-year degree, that's great; we care more about your past experience and ability to do the job, so please apply even if you don't have a degree

Strong understanding of RESTful API design principles and best practices

Experience with query optimization, indexing strategies, and database performance tuning

Proven ability to debug complex production issues and identify root causes

Experience with automated testing (unit, integration, end-to-end)

Strong communicator and team collaborator

Demonstrated ability to take ownership of projects, work independently, and deliver within deadlines

Preferred

Experience with Ruby on Rails

Experience with OpenSearch or Elasticsearch

Familiarity with AI/LLM APIs (OpenAI, Anthropic, etc.) and prompt engineering

Experience with AWS services (ECS/Fargate, RDS, S3, SQS/SNS)

Background in APM tools and observability (we use DataDog)

Experience with queue-based background processing (Sidekiq, Kafka, Celery)

Knowledge of OAuth, API authentication, and security best practices

Experience optimizing high-traffic APIs (1000+ req/sec)

Understanding of database replication, read replicas, and connection pooling

Experience working at a rapidly-growing tech startup

Benefits

Bonus and equity

Flexible work arrangements

Flex PTO plan with generous holidays including a reduced schedule between Christmas and New Year's

Generous family leave policies

Life insurance and supplemental insurance options

Matching traditional and Roth 401k, fully vested from day one

Company

Respondology

Respondology develops a customizable comment moderation tool for businesses or anyone with a large online audience.

Founded in 2008

Boulder, Colorado, USA

11-50 employees

https://respondology.com/

H1B Sponsorship

Respondology has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)

Distribution of Different Job Fields Receiving Sponsorship

Represents job field similar to this job

Trends of Total Sponsorships

2025 (1)