Senior Backend Engineer, AI Product
Employment Information
Report this job
Job expired or something wrong with this job?
Job Description
Senior Backend Engineer building Gismart’s AI orchestration platform for image and video generation. Owning backend architecture, provider integrations, APIs, media pipelines, reliability, and usage billing.
Responsibilities:
- Build the orchestration core as a unified layer over multiple AI providers
- Implement failover, retries, rate limiting, and rapid onboarding of new AI models
- Own stable, versioned API contracts consumed by the Flutter client
- Build a media pipeline for storing and delivering generated assets through S3/CDN with cost control
- Maintain reliability during paid-traffic spikes through metrics, tracing, and per-provider alerting
- Implement usage accounting, per-generation cost tracking, billing integration, and idempotent charging
- Design asynchronous generation pipelines with long-running job queues, provider webhooks, delivery guarantees, and failure recovery
- Shape the product’s technical foundation, make architectural decisions, and own backend development end-to-end
- Drive solutions as the first Product Engineer across the full development lifecycle
Requirements:
- 4+ years of commercial backend development experience
- Strong experience with Go, or solid backend expertise in Java, Kotlin, C#, Rust, or TypeScript with willingness to transition to Go from day one
- Experience designing and building backend services under real production load
- Understanding of architectural trade-offs and decision-making
- Strong REST and gRPC API design skills
- Focus on maintainability, backward compatibility, and APIs consumed by mobile applications
- Experience integrating third-party APIs, including retries, idempotency, rate limiting, and graceful recovery from partial failures
- Strong PostgreSQL knowledge, including transactions, isolation levels, indexing, and data consistency
- Experience with asynchronous processing and messaging systems such as SQS, Redis, Kafka, or Temporal
- Experience with AWS or GCP, Docker, and modern CI/CD pipelines
- Practical observability experience with metrics, logging, tracing, and independently debugging production issues
- Ability to ramp up on an existing codebase and build on it rather than rewrite it
- Comfortable working in a fast-paced, iterative pre-PMF environment
- Ready to take ownership as the first Product Engineer
- Experience with VictoriaMetrics, Grafana, and Sentry is a plus
- Production experience with generative models, billing systems, media pipelines, B2C products, streaming protocols, Kubernetes, Kafka, early-stage startups, or shipped personal projects are nice to have
Benefits:
- Flexible working schedule
- Work anywhere in the world, either remotely or in one of the corporate hubs
- 100% compensation for coworking spaces in Ukraine, except Kyiv
- 50% compensation for coworking spaces worldwide
- Free office lunches for employees working from hubs
- 6 fixed public holidays per year plus 5 flexible additional holidays
- 100% sick leave compensation
- Partial coverage of medical insurance, sports activities, and therapy costs
- Equipment provision or maintenance cost coverage for personal tools
- 70% coverage of professional development courses
- 100% coverage of corporate English courses
- 18 working days of paid vacation and 3 personal days per year
- An extra vacation day for each year at Gismart
- Corporate events and team-building activities across Gismart hubs
Similar Jobs
Senior Project Commissioning Engineer – Battery Storage
Senior Project & Commissioning Engineer supporting utility-scale battery storage design, construction, and commissioning for Plus Power. Partnering with EPC firms, utilities, and grid teams across North America.
Fullstack Developer, Ruby on Rails, React
Fullstack Developer building React applications, Ruby on Rails APIs, and Java Spring Boot microservices for US federal agencies. Delivering tested, secure, accessible solutions in agile teams.
Back End Engineer
Backend Engineer building Go microservices for Ravelin’s machine-learning fraud detection platform. Collaborating with data scientists and product managers to operate high-volume fraud technology at scale.
Senior Python Developer – Technology & AI Labs
Senior Python Developer building AI-first full-stack products for Embrace’s regulated-industry software portfolio. Shipping cloud applications, modernizing legacy systems, and delivering Venture AI Labs experiments.
Senior Backend Engineer
Senior Backend Engineer building scalable Go services for refurbed, a European refurbished-products marketplace. Designing APIs, operating production systems, and delivering marketplace features with cross-functional squads.
Senior Software Engineer – PHP, TypeScript, Node.js
Senior Software Engineer responsible for building features and solving scaling problems at easybill. Develop PHP, TypeScript, and Node.js solutions in a remote-first environment.
.NET/Web-App Technical Architect
Technical Architect providing architecture for web and app platforms. Act as a thought leader and transform high-level architecture into detailed designs while coordinating with product and business teams.
Software Developer IV, Golang, Kubernetes
Expert Software Developer IV at Rackspace Technology designing scalable backend services in Go and Kubernetes. Building and mentoring in an AI-first engineering culture with modern cloud-native technology.
Senior Backend Developer, PL/SQL – Mercados Financieros y Tesorería
Senior Backend Developer handling financial market solutions using PL/SQL. Collaborating with international teams on treasury and financial processes.
Senior Back-End Engineer
Senior Backend Engineer at Ajaib, designing, developing, and deploying software solutions impacting millions of investors. Collaborating with teams and mentoring engineers in an innovative startup culture.
Desarrollador Java
Java Developer maintaining applications and services for a consulting and engineering firm. Ensuring code quality and collaborating in agile environments.
Senior Consultant, SSIS, .NET
Senior consultant for online banking applications in .NET environment. Responsibilities include developing Front-End and Back-End solutions and maintaining Data Warehouse environments in Málaga.
Principal/Staff Backend Engineer
Principal / Staff Backend Engineer for a fast-growing proptech startup, owning backend architecture and infrastructure end-to-end. Collaborating with a high-caliber team and utilizing AI tooling natively.
Backend Engineer – Ruby on Rails
Backend Engineer focusing on Ruby on Rails at a leading Fintech company supporting small businesses in Europe. Collaborate with cross-functional teams to build and enhance innovative financial software solutions.
Backend Developer, SAP CAP – Part-time
Backend Developer for SAP CAP applications at Criatto, a tech recruitment consultancy in Brazil. Flexibly working part-time hours with attractive hourly rates.
Backend ABAP Cloud Developer – Part-time
Backend Developer focusing on ABAP Cloud for a consulting company servicing clients in Brazil. Responsible for development, maintenance, and evolution of backend solutions.
Java Developer
Java Developer at GlobalBet, the biggest independent B2B provider of virtual sports solutions, developing backend software components and maintaining documentation.
Full-Stack Developer, Angular, NestJS, PHP, MySQL
Full-Stack Developer for custom software development firm specializing in scalable web solutions. Involves both development and client-facing interactions.
Backend Developer, German
Backend Developer for innovative international software projects. Requires Java or Golang expertise and fluent German for a remote role within Spain.