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Job Role: Optimization Engineer - C Programming

Experience: 3 to 8 Years

Location: Bangalore, Pune, Delhi

Were hiring an Optimization Engineer skilled in C Programming and Operations Research / Optimization to design and optimize algorithms solving complex business and engineering problems.

Key Responsibilities:

• Develop and maintain high-performance software using C.
• Build and implement optimization models (linear, integer, nonlinear).
• Collaborate with teams to deliver scalable, efficient solutions.
• Analyze and improve existing algorithms for performance and scalability.

Must-Have Skills:

• Expertise in C Programming and Operations Research / Optimization.
• Strong in data structures, algorithms, and memory management.
• Hands-on with tools like CPLEX, Gurobi, or COIN-OR.
• Python experience is an added advantage.

Preferred Skills:

• Knowledge of Python, C++, or Java.
• Familiarity with AMPL, GAMS, or solver APIs.
• Understanding of HPC, parallel computing, or multi-threading.

About VisibilityStack

VisibilityStack helps businesses connect with people who are actively searching for the solutions they offer, both on Google Search and in the new wave of AI-powered search tools.

Our AI agents identify what your audience is looking for, create content that answers those questions, and structure it so Google and AI systems can easily understand and recommend it. We also strengthen your online credibility through strategic backlinks and a strong social presence.

Everything is guided by real-time data. We focus on what works, remove what does not, and keep your content working around the clock. The result is simple: the right people can find you, trust you, and reach out when they need what you offer.

The Role

We need a Senior Engineer who ships production code that scales. You'll be the technical anchor—building critical infrastructure, solving complex problems, and mentoring junior developers through code reviews and pair programming.

You'll shape our future in four key ways: writing the code that becomes our foundation, being a key voice in engineering hiring decisions, helping establish the processes and patterns everyone follows, and having significant input on product decisions—your technical perspective directly influences what we build, not just how we build it. This isn't about managing people or writing performance reviews—it's about technical leadership through excellence.

What's in it for you:

1. Own mission-critical systems end-to-end — Your code directly generates customer revenue
2. Skip the politics, ship products — No layers of approval, no enterprise bureaucracy
3. Shape product direction — Your technical insights influence product strategy, not just implementation
4. Learn cutting-edge AI in production — Work with LLMs, vector databases, and agent orchestration at scale
5. Shape technical decisions and processes — Your input matters on how we build, not just what
6. Accelerated growth path — As we scale, you choose: become our technical lead or remain a deeply influential IC
7. Direct founder access — Collaborate on product vision, not just execute specs

Location: Janakpuri, Delhi (Hybrid - Maker's Schedule)

Our Work Philosophy:

We follow the Maker's Schedule, not the Manager's Schedule. This means uninterrupted blocks of deep work when you're building, and high-bandwidth collaboration when we're solving problems together.

In Practice:

1. In-office days: Whiteboard architecture sessions, rapid product iterations, deep dives into product strategy, complex debugging that needs three minds on one problem
2. Deep work days: Uninterrupted coding from wherever you work best—home, office, or that coffee shop with perfect noise levels
3. Balance by design: We optimize for both intense collaboration and deep focus

The best technical breakthroughs happen in two modes: intense in-person collaboration where ideas bounce rapidly, and deep solo work where complex problems get solved. We protect both.

Responsibilities

Technical Excellence

1. Build production systems that handle millions of AI operations daily
2. Write complex integrations that others can't figure out
3. Solve scaling problems before they become emergencies
4. Implement robust error handling and monitoring
5. Own critical infrastructure components end-to-end

Architecture & Code Quality

1. Design APIs that won't need v2 in 6 months
2. Make pragmatic technical decisions (boring tech when appropriate)
3. Help establish engineering processes—from code review to deployment
4. Create patterns and standards other engineers can follow
5. Lead code reviews that teach, not just critique
6. Balance shipping speed with technical sustainability

Hiring & Technical Assessment

1. Conduct technical interviews for engineering roles
2. Design practical coding assessments that test real skills
3. Provide strong input on hire/no-hire decisions
4. Partner with founders on technical requirements for roles
5. Help close strong candidates by selling the technical vision

Mentorship & Collaboration

1. Pair with junior developers on complex problems
2. Share knowledge through code reviews and documentation
3. Unblock teammates when they're stuck
4. Work directly with founders on technical strategy
5. Partner with product team on feature design and technical feasibility
6. Turn product ideas into technical specifications
7. Work directly with founders on technical strategy
8. Turn product ideas into technical specifications

Requirements

Must Have

1. 5-7 years of software engineering experience
2. Expert-level Python development skills
3. Production experience with LLMs (OpenAI, Anthropic, not just prototypes)
4. Built systems that scaled (and dealt with the failures)
5. Strong debugging skills—you fix what others can't
6. API design that makes sense to other developers
7. Git workflows and collaborative development

Strong Advantages

1. Previous early-stage startup experience
2. Production experience with vector databases (Pinecone, Weaviate, pgvector)
3. Elasticsearch or search infrastructure expertise
4. Built revenue-generating AI/ML systems
5. Experience with high-volume data pipelines
6. Contributed to open source projects
7. Informal mentorship or tech lead experience

Tech Stack

1. Backend: Python, FastAPI, PostgreSQL
2. AI/ML: OpenAI APIs, LangChain, Vector DBs
3. Infrastructure: AWS, Docker, GitHub Actions
4. Search: Elasticsearch (evaluating alternatives)

What We Offer

1. Early employee equity and financial upside
2. No bureaucracy—your code ships to production
3. Work on genuinely hard technical problems
4. Learn from and contribute to cutting-edge AI systems
5. Clear growth path as the team scales

As a Software Development Engineer at Amazon, you have industry-leading technical abilities and demonstrate breadth and depth of knowledge. You build software to deliver business impact, making smart technology choices. You work in a team and drive things forward. 

Top Skills

•    You write high quality, maintainable, and robust code, often in Java or C++.

•    You recognize and adopt best practices in software engineering: design, testing, version control, documentation, build, deployment, and operations.

•    You have experience building scalable software systems that are high-performance, highly-available, highly transactional, low latency and massively distributed.

Roles & Responsibilities

•    You solve problems at their root, stepping back to understand the broader context.

•    You develop pragmatic solutions and build flexible systems that balance engineering complexity and timely delivery, creating business impact.

•    You understand a broad range of data structures and algorithms and apply them to deliver high-performing applications.

•    You recognize and use design patterns to solve business problems.

•    You understand how operating systems work, perform and scale.

•    You continually align your work with Amazon’s business objectives and seek to deliver business value.

•    You collaborate to ensure that decisions are based on the merit of the proposal, not the proposer.

•    You proactively support knowledge-sharing and build good working relationships within the team and with others in Amazon.

•    You communicate clearly with your team and with other groups and listen effectively. 

Skills & Experience

•    Bachelors or Masters in Computer Science or relevant technical field.

•    Experience in software development and full product life-cycle.

•    Excellent programming skills in any object oriented programming languages - preferably Java, C/C++/C#, Perl, Python, or Ruby.

•    Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability.

•    Proficiency in SQL and data modeling.

• Working in high paced competitive stock trading environment with core web app development, scripting, data interpretation and manipulation skills
• Designing, creating and maintaining our in-house software for business requirements
• Work on innovative ideas to improve the user experience of our internal systems and applications which are used by the trading teams
• Improve on existing tools to make trade monitoring systems robust and more reliable

Ideal candidate should have:

• Engineering degree in Computer Science (preferred) or any other discipline
• Experience on Python web app development (Preferably Django)
• Ability to work as a full stack developer
• Experience in Shell/Perl or Python scripting
• Prior experience of Linux or Unix based operating systems
• Ability to create automation scripts
• Experience/Knowledge of financial industry
• Ability to work in fast paced environment under pressure and manage multiple high priority projects
• Willingness to learn and work on new technologies
• Excellent communication skills

• Develop new features and improve existing code in C++, specializing in the iOS/Android platforms.
• Has experience with working on huge codebases and comfortable writing and debugging multi-threaded & asynchronous code in Android and the native C++ libraries.
• Understands the resource constraints of mobile devices and implements accordingly robust and efficient solutions with respect to CPU, memory and battery life.
• Be customer-focused and unafraid to challenge the status quo

• Work as part of a dedicated, high-energy team to develop code that spans multiple products.

• Maintain exceptional development standards, especially related to performance, robustness, and testing.

• Support other development teams, build robust relationships and effectively articulate complex ideas.

• Proactively learn new languages, libraries, and platforms as needed. Adapt quickly to changing requirements.

• Activity planning and estimations
• Participate in the design and architecture of the overall product and lead the same for your features.
• Study upcoming technologies, analyze and propose how they can be incorporated to improve the existing product.
• Create high & low-level design artifacts.
• Code Reviews
• Mentoring Android developers in the team
• Develop document solutions for close to a million Acrobat Android users 
• We are looking for you if your answer to the following questions is YES

• Are you interested to be part of a highly collaborative team developing next-generation document solutions?
• Have you developed mobile applications having complex UI and high performance?
• Do you like to solve problems and possess an aptitude for analytical troubleshooting?